CN203812087U - A wind-solar hybrid power generation system test device - Google Patents

Abstract

The utility model relates to a testing device for a wind-solar complementary power generation system, which belongs to the technical field of wind-solar complementary power generation. The device includes a control cabinet, a battery pack, a solar panel, a DC load street lamp, a dual MCU wind and solar hybrid controller, a three-phase AC motor, a three-phase AC generator and a rack platform. The control cabinet is equipped with a display and AC-DC-AC Inverter; the dual-MCU wind-solar hybrid controller uses two MCUs to work together to perform power input and processing control and power output control, which greatly reduces product manufacturing costs; the test device can provide various environmental conditions for the wind-solar hybrid power generation system. Full coverage test and real-time data collection and processing; this test method can test and count the operating parameters of the dual MCU wind-solar hybrid controller and the operating parameters of the power generation system.

Description

A wind-solar hybrid power generation system test device

technical field

The utility model relates to a test device for a wind-solar complementary power generation system, which belongs to the technical field of wind-solar complementary power generation.

Background technique

Today, when energy problems are becoming more and more prominent, the development and utilization of new energy sources are getting more and more attention and favor from governments and enterprises. Among them, the wind and solar hybrid power generation system is non-polluting, renewable, abundant Complementary power generation and other advantages have been widely developed and utilized.

The existing wind-solar hybrid power generation controllers all use a single MCU. In order to achieve better performance requirements, there are problems such as high manufacturing cost of controller products, relatively complicated control algorithm programming, and difficult product maintenance.

At present, before the design of wind-solar hybrid power generation controllers is completed, samples are made, and they are put into production, simple tests are generally completed through manual sampling. Due to the limited simulation conditions of the environment and operation, resulting in low efficiency and narrow data coverage, the test data results are difficult to be used as the final guidance basis for product production, which brings risks to mass production.

No one has yet proposed a solution to the related technologies that use a dual-MCU wind-solar hybrid power generation controller to reduce product manufacturing costs, as well as the low test efficiency and narrow data coverage of the wind-solar hybrid power generation system.

Contents of the invention

The purpose of this utility model is to overcome the deficiencies of the prior art and provide a wind-solar hybrid power generation system testing device, which includes a control cabinet 1, a storage battery pack 13, a solar panel 14, a DC load street lamp 15, and a dual-MCU wind-solar hybrid controller 16. A three-phase AC motor 17, a three-phase AC generator 19 and a rack platform 20. The control cabinet 1 is provided with a display 5 and an AC-DC-AC inverter 10. The serial port of the control cabinet 1 and the dual-MCU wind-solar hybrid controller 16 connection, the dual MCU wind-solar hybrid controller 16 is respectively connected with the storage battery pack 13, the solar panel 14, the DC load street lamp 15, and the three-phase AC generator 19, and the three-phase AC generator 19 and the three-phase AC motor 17 are connected through a mechanical transmission device 18 is connected and fixed on the rack platform 20.

The control cabinet 1 is provided with a control cabinet power switch 2, a running indicator light 3, a fault indicator light 4, a frequency converter mode setting key 6, a frequency converter running key 7, a frequency conversion speed regulation start operation key 8, and a frequency conversion Speed regulation stop operation key 9, frequency converter 10, frequency converter frequency conversion speed regulation deceleration setting key 11, frequency converter frequency conversion speed regulation acceleration setting key 12.

The frequency converter 10 controls the speed of the three-phase AC motor 17 and drives the three-phase AC generator 19 to rotate to form a wind power simulation system; the solar panel 14 forms a solar simulation power generation system by manually changing the lighting conditions.

The frequency converter 10 described in the utility model is an AC-DC-AC frequency converter.

The wind-solar complementary controller described in the utility model is realized by the common control of dual MCUs, has the function of tracking the maximum power point, has two braking modes of manual/automatic, and has multiple working modes for users to choose. The digital tube display can protect the overcharge and overdischarge of the battery. The printed circuit board of the intelligent controller is built in the metal casing. The human-computer interaction functions of the buttons and display lights are simple and convenient.

The solar cell panel 14 is a polycrystalline silicon solar cell with a rated power of 120W and a maximum power point voltage of 17.4V.

The 13 groups of storage batteries use lead-acid batteries. The utility model selects a valve-regulated sealed colloid battery with a capacity of 100Ah as the energy storage device of the system, which has large capacity, low price, low self-discharge rate, compact structure and high safety. , Long life and other advantages.

The DC load street lamp 15 selects a white LED lamp with a rated power of 30W as the lighting load of the system to ensure that the system can still work stably for dozens of hours when extreme weather occurs.

The wind power generation simulation system described in the utility model further includes three components: a frequency converter 10 , a three-phase AC motor 17 , and a three-phase AC generator 19 .

The display 5 described in the utility model is a computer, and the dual-MCU wind-solar hybrid controller 16 is connected with the computer through the RS232 communication interface, which can display the voltage of the three-phase alternator 19, the voltage of the storage battery pack, the voltage of the solar panel and the storage battery in real time. charging.

The dual-MCU wind-solar hybrid controller 16 of the utility model includes a communication circuit I21, a crystal oscillator circuit I22, a watchdog circuit I23, an ICSP program download circuit I24, an intelligent boost circuit 25, a solar cell voltage signal acquisition circuit 26, and a fan after rectification Voltage signal acquisition circuit 27, intelligent boost drive circuit 28, fan rectifier circuit 29, brake circuit 30, buzzer indication/alarm circuit 31, ICSP program download circuit II 32, battery voltage signal acquisition circuit 33, communication circuit II 34, gatekeeper Dog circuit Ⅱ35, crystal oscillator circuit Ⅱ36, human-machine interface 37, two-digit digital tube interface 38, digital tube drive circuit 39, keyboard interface circuit 40, control interface 41, LED indicator circuit 42, two-way load interface circuit 43, boost/ Brake interface 44, communication interface 45, voltage data acquisition port 46, main control MCU chip 47, two-way load interface 48, slave control MCU chip 49, communication circuit I21, crystal oscillator circuit I22, watchdog circuit I23, ICSP program download circuit Ⅰ 24 is connected with the main control MCU chip 47; two PWM wave output pin boost/brake interfaces 44 of the main control MCU chip 47 are connected with the intelligent boost drive circuit 28 and the brake circuit 30 respectively; four of the main control MCU chip 47 The I/O port voltage data acquisition port 46 is respectively connected with the intelligent booster circuit 25, the voltage signal acquisition circuit 27 after fan rectification, the solar cell voltage signal acquisition circuit 26, and the storage battery voltage signal acquisition circuit 33; the main control MCU chip 47 is connected with the communication interface 45 connection, the slave control MCU chip 49 is connected with the communication circuit II34, and the communication circuit II34 is connected with the communication interface 45; the buzzer indication/alarm circuit 31, the ICSP program download circuit II32, the battery voltage signal acquisition circuit 33, and the watchdog circuit II35 , crystal oscillator circuit II 36, and two-way load interface 48 are connected to the slave control MCU chip 49 respectively; the man-machine interface 37 of the slave control MCU chip 49 is connected to the control interface 41, and the control interface 41 is connected to the keyboard interface circuit 40 and the LED indicator circuit 42 respectively. , Two-digit digital tube interface 38 connection; two-way load interface 48 is connected with two-way load interface circuit 43, intelligent boost drive circuit 28 is connected with intelligent boost circuit 25, fan rectifier circuit 29 is connected with intelligent boost circuit 25, intelligent The boost circuit 25 is connected to a voltage signal acquisition circuit 27 .

The communication circuit I21 is connected to the pin 1 and the pin 44 of the main control MCU chip 47 through the chip MAX232, and the crystal oscillator circuit I22 is directly connected to the main control MCU chip 47 through two pins OSC1_1 and OSC2_1; the watchdog circuit I23 passes Two lines labeled WD2 and MCLR_1 are connected to the main control MCU chip 47 .

The main control MCU chip 47 is connected with the communication interface 45 through the pins 24-27, the slave control MCU chip 49 is connected with the communication circuit II 34 through the pins 24-27, and the communication interface 45 is connected with the communication circuit II 34EPROM 93LC66 to realize the communication between the two MCUs. Communication.

The buzzer indication/alarm circuit 31 is connected to each other by the 8 pins RBO of the slave control MCU chip 49; the battery voltage signal acquisition circuit 33 is connected with the 19 pins of the slave control MCU chip 49 and the 22 pins of the main control MCU chip 47 Connection; the watchdog circuit II 35 is connected to the slave control MCU chip 49 through two lines of WD1 and MCLR; And 36 pins are connected with the two-way load interface 48, the two-way load interface 48 is connected with the two-way load interface circuit 43, and the nixie tube drive circuit 39 is connected with the two-way nixie tube interface 38 through sel1 and sel2.

The master control MCU chip 47 PIC16F877A and the crystal oscillator circuit Ⅰ22 form the minimum system of the master control MCU single-chip microcomputer; similarly, the slave control MCU chip 49 PIC16F877A and the crystal oscillator circuit Ⅱ36 constitute the minimum system of the slave control MCU single-chip microcomputer; the master control MCU chip and the slave control MCU chip The watchdog circuits are watchdog circuit Ⅰ23 and watchdog circuit Ⅱ35 respectively, and the chips used are MAX813 to prevent the system program from running away and realize the forced reset function; the master control MCU chip and the slave control MCU chip respectively adopt ICSP program The download circuit Ⅰ24 and the ICSP program download circuit Ⅱ32 realize the function of program download and system update; the communication circuit Ⅰ21 adopts the chip MAX232, and realizes the communication between the wind and solar hybrid intelligent controller and the host computer through the main control MCU; and the main control MCU chip 47 Through the communication circuit II 34 between the slave control MCU chip 49, the EPROM chip 93LC66 is adopted, connected by the communication interface 45, and the communication between the double MCUs is realized.

The boosted voltage value of the solar cell, the rectified voltage value of the fan, the direct output voltage of the solar cell and the battery voltage required by the system control are respectively passed through the intelligent boost circuit 25, the voltage signal acquisition circuit 27 after rectification of the fan, and the voltage of the solar cell. The signal acquisition circuit 26 and the battery voltage signal acquisition circuit 33 collect, and are respectively sent to the voltage data acquisition port 46 for analysis and calculation of digital-to-analog conversion; while the intelligent boost circuit 28 drives the intelligent boost circuit 25, by changing the main control The duty ratio of the first PWM wave output by the boost and brake interface 44 of the MCU chip 47 changes the conduction rate of the switch tube IRF2807 to realize intelligent boost; The second PWM wave output by the brake interface 44 is controlled by changing its duty cycle to drive the triode 8550 to be turned on or off, thereby driving the rear IRF2807 to be turned on or off to realize whether the wind+ is connected to the ground terminal or not. The braking function of the fan when the wind speed is too high ensures the safety of the system; the fan rectifier circuit 29 converts the three-phase AC WindA, WindB, and WindC output by the three-phase fan into DC wind+ and inputs it to the intelligent booster circuit 25 to perform the storage on the storage battery. After charging and fan rectification, the voltage signal acquisition circuit 27 collects the voltage signal. The slave control MCU chip 49 is mainly responsible for the work of the two DC loads, the realization of the man-machine interface, LED indication, buzzer alarm and other functions. The two-way load interface 48 is controlled by two-way PWM waves output by the slave control MCU chip 49, and is connected with the two-way load interface circuit 43 to control and realize the driving and full/half power working functions of the two-way load; the keyboard interface circuit 40 inside Buttons S2, S3 and S4 are used to set the manual brake, load working mode + and load working mode - of the fan respectively; LED1, LED2 and LED3 in the LED indicator circuit 22 are used to indicate brake or alarm respectively, and the specification of connecting to the battery is 12V and 24V; the two-digit digital tube interface 38 is driven by sel1 and sel2 of the digital tube drive circuit 39 to display the set load working mode.

The appearance structure of the dual-MCU wind-solar hybrid intelligent controller in this embodiment includes: manual brake button 50, work mode setting plus (+) button 51, work mode setting minus (-) button 52, screwdriver operation hole 53, double-digit digital Tube 54, red LED lamp 55, green LED lamp I 56, green LED II lamp 57, two-way DC load terminal 58, DC lead storage battery terminal 59, solar panel terminal 60, fan terminal 61.

The manual brake button 50, the working mode setting plus + button 51, and the working mode setting minus-button 52 correspond to the keys S2, S3 and S4 in the keyboard interface circuit 40 respectively; the screwdriver operation hole 53 is a physical opening on the device. Rubber insulation is added to avoid safety problems caused by the conduction of the screwdriver and the metal casing of the controller; the double-digit digital tube 54 corresponds to DS1 in the two-digit digital tube interface 38, the red LED light 55, the green LED light Ⅰ56, and the green LED light Ⅰ56. The LED II lamps 57 correspond to LED1, LED2 and LED3 in the LED indicating circuit 42 respectively, and are respectively used to indicate braking or alarm, and the specifications for accessing the accumulator are 12V and 24V. the

In the dual-MCU wind-solar hybrid controller 16 of the utility model, the main control MCU and the slave control MCU communicate with each other through the dual-machine serial sharing EEPROM, and work together to coordinate the work to complete the system control. Only one MCU can access the EEPROM at the same time. When not accessing, the bus needs to be set to high level, otherwise there will be competition. Since this design is a dual MCU, each MCU leads to an IO port to connect to the bus access authority control. When the control line is at high level, It indicates that the EEPROM is in an idle state. When the control line is at a low level, it indicates that the EEPROM is in a busy state. Moreover, the structural design of the dual-MCU wind-solar hybrid controller described in the utility model can reduce product manufacturing costs.

The test device of the wind-solar hybrid power generation system described in the utility model is applied to the test of the wind-solar hybrid power generation system, specifically as follows: the wind power generation simulation system is used to test the wind power generation characteristics and power control effects at different wind speeds—that is, to test three-phase AC at different wind speeds The output voltage value and current value of the generator 19 or the dual-MCU wind-solar hybrid controller 16, such as the power generation parameters of the three-phase alternator 19 under low wind speed and the boost effect and operating parameters of the dual-MCU wind-solar hybrid controller 16, and the high wind speed The braking effect and operating parameters of the dual-MCU wind-solar hybrid controller 16;

Changing the illuminance of the solar panel 14 can simulate the power generation characteristics and power control effects under different illuminations in the actual environment. Full coverage—that is, testing the output voltage and current values of the solar panel 14 or the dual-MCU wind-solar hybrid controller 16 under different illuminations. , such as the power generation parameters of the solar panel 14 under low light and the boost effect and operating parameters of the dual-MCU wind-solar hybrid controller 16, the overcharge control effect and operating parameters of the dual-MCU wind-solar hybrid controller 16 under high light.

Combined with the application of the wind power simulation system, solar panels 14 and the energy-saving control module of the dual-MCU wind-solar hybrid controller 16, the output power of the power generation system under different load powers and the output of the dual-MCU wind-solar hybrid controller 16 under different load powers can be simulated Related parameters such as voltage, current, battery charge and discharge time, and LED lighting effects.

The working principle of the utility model is: the control cabinet 1 controls the rotating speed of the three-phase AC motor 17 through the frequency converter 10 so as to control the rotating speed of the three-phase AC generator 19 through the mechanical transmission device 18, which is also to simulate different wind speeds in reality, but compared with The wind speed in reality is easier to change, which is convenient for testing the dual-MCU wind-solar hybrid controller 16, and when the three-phase AC motor 17 rotates too fast, the mechanical transmission 18 will not slip, so that the three-phase AC generator 19 will not rotate too high The dual-MCU wind-solar hybrid controller 16 is damaged due to excessive output voltage, and the operating parameters of the wind power simulation system are displayed on the display 5 in real time.

Compared with the prior art, the beneficial effects of the utility model are:

(1) The dual-MCU wind-solar hybrid controller 16 provided by the utility model adopts the control method combining the master control MCU and the slave control MCU, and the two MCUs perform corresponding control in division of labor. The control strategy is simpler, safer and more reliable than using a single MCU Increased reliability, reduced use failure rate and reduced product manufacturing costs;

(2) The dual-MCU wind-solar hybrid controller provided by the utility model has the function of adjusting the input electric energy and the energy-saving control function of the output electric energy under different wind speeds and light conditions, so as to achieve the ultimate goal of saving energy and reducing consumption;

(3) The wind power generation simulation system in the wind-solar hybrid power generation test device can adjust the frequency converter to adjust the speed of the motor according to the needs of the test, and the speed of the three-phase alternator is also changed rapidly accordingly, simulating the actual environment without limitation Full coverage of power generation data and controller operating data at all wind speeds;

 (4) The solar panel in the wind-solar hybrid power generation test device can change the illuminance of the solar panel according to the needs of the test, so that it can simulate the power generation data and controller operation of different illumination changes in the actual environment without limitation Full data coverage;

(5) The wind-solar hybrid power generation test device puts computer data acquisition and processing and display devices and frequency conversion speed regulators in a control cabinet, which makes speed control and testing easier, and has a friendly man-machine interface, and the test data can be processed in real time , analysis and storage.

Description of drawings

Fig. 1 is the structural representation of the test device of the present utility model;

Fig. 2 is a schematic diagram of the wiring of the dual-MCU wind-solar hybrid controller of the present invention;

Figure 3 is a schematic diagram of the main control MCU circuit of the dual-MCU wind-solar hybrid controller;

Figure 4 is a schematic diagram of the auxiliary circuit of the main control unit of the dual-MCU wind-solar hybrid controller;

Figure 5 is a schematic diagram of the dual-MCU wind-solar hybrid controller slave control MCU circuit;

Figure 6 is a schematic diagram of the auxiliary circuit of the slave control unit of the dual-MCU wind-solar hybrid controller;

Fig. 7 is a schematic diagram of a casing of a dual-MCU wind-solar hybrid controller of the present invention.

In Figure 1: 1-control cabinet, 2-control cabinet power switch, 3-operation indicator light, 4-fault indicator light, 5-display, 6-inverter mode setting key, 7-inverter operation key, 8-frequency conversion Speed regulation start operation key, 9- frequency conversion speed regulation stop operation key, 10-inverter, 11-frequency conversion deceleration key, 12-frequency conversion acceleration key, 13-battery pack, 14-solar panel, 15-DC load street lamp, 16-Dual MCU wind and solar hybrid controller, 17-Three-phase AC motor, 18-Mechanical transmission, 19-Three-phase AC generator, 20-Rack platform;

21-communication circuit Ⅰ, 22-crystal oscillator circuit Ⅰ, 23-watchdog circuit Ⅰ, 24-ICSP program download circuit Ⅰ, 25-intelligent boost circuit, 26-solar battery voltage signal acquisition circuit, 27-fan rectified voltage Signal acquisition circuit, 28-intelligent boost drive circuit, 29-fan rectifier circuit, 30-brake circuit, 31-buzzer indication/alarm circuit, 32-ICSP program download circuit Ⅱ, 33-battery voltage signal acquisition circuit, 34 -communication circuit Ⅱ, 35-watchdog circuit Ⅱ, 36-crystal oscillator circuit Ⅱ, 37-man-machine interface, 38-digital tube interface, 39-digital tube drive circuit, 40-keyboard interface circuit, 41-control interface , 42-LED indication circuit, 43-two-way load interface circuit, 44-boost/brake interface, 45-communication interface, 46-voltage data acquisition port, 47-main control MCU chip, 48-two-way load interface, 49 -Slave control MCU chip;

50-Manual brake button, 51-Work mode setting plus (+) button, 52-Work mode setting minus (-) button, 53-Screwdriver operation hole, 54-Double-digit digital tube, 55-Red LED light, 56-Green LED light, 57-green LED light, 58-two-way DC load terminal, 59-DC lead battery terminal, 60-solar panel terminal, 61-fan terminal.

Detailed ways

The utility model will be further described below in conjunction with the above four accompanying drawings, but the scope of protection of the utility model is not limited to the content described, and those of ordinary skill in the art can make changes according to the technical scheme and technical concept of the utility model and transformation, but any change and transformation should belong to the protection scope of the claims of the present invention.

Example 1

The wind-solar hybrid power generation system test device described in this embodiment includes a control cabinet 1, a storage battery pack 13, a solar panel 14, a DC load street lamp 15, a dual-MCU wind-solar hybrid controller 16, a three-phase AC motor 17, a three-phase AC The generator 19 and the rack platform 20, the control cabinet 1 is provided with a display 5 and an AC-DC-AC inverter 10, the serial port of the control cabinet 1 is connected to the dual-MCU wind-solar hybrid controller 16, and the dual-MCU wind-solar hybrid controller 16 is respectively It is connected with battery pack 13, solar panel 14, DC load street lamp 15, and three-phase AC generator 19, and the three-phase AC generator 19 and three-phase AC motor 17 are connected through mechanical transmission 18 and fixed on the frame platform 20 .

The control cabinet 1 is provided with a control cabinet power switch 2, a running indicator light 3, a fault indicator light 4, a frequency converter mode setting key 6, a frequency converter running key 7, a frequency conversion speed regulation start operation key 8, and a frequency conversion Speed regulation stop operation key 9, frequency converter 10, frequency converter frequency conversion speed regulation deceleration setting key 11, frequency converter frequency conversion speed regulation acceleration setting key 12.

The frequency converter 10 controls the speed of the three-phase AC motor 17 and drives the three-phase AC generator 19 to rotate to form a wind power simulation system; the solar panel 14 forms a solar simulation power generation system by manually changing the lighting conditions.

The wind-solar complementary controller described in the utility model is realized by the common control of dual MCUs, has the function of tracking the maximum power point, has two braking modes of manual/automatic, and has multiple working modes for users to choose. The digital tube display can protect the overcharge and overdischarge of the battery. The printed circuit board of the intelligent controller is built in the metal casing. The human-computer interaction functions of the buttons and display lights are simple and convenient.

The solar cell panel 14 is a polycrystalline silicon solar cell with a rated power of 120W and a maximum power point voltage of 17.4V.

The 13 groups of storage batteries use lead-acid batteries. The utility model selects a valve-regulated sealed colloid battery with a capacity of 100Ah as the energy storage device of the system, which has large capacity, low price, low self-discharge rate, compact structure and high safety. , Long life and other advantages.

The DC load street lamp 15 selects a white LED lamp with a rated power of 30W as the lighting load of the system to ensure that the system can still work stably for dozens of hours when extreme weather occurs.

The wind power generation simulation system described in the utility model further includes three components: a frequency converter 10 , a three-phase AC motor 17 , and a three-phase AC generator 19 .

The display 5 described in the utility model is a computer, and the dual-MCU wind-solar hybrid controller 16 is connected with the computer through the RS232 communication interface, which can display the voltage of the three-phase alternator 19, the voltage of the storage battery pack, the voltage of the solar panel and the storage battery in real time. charging.

The dual-MCU wind-solar hybrid controller 16 in this embodiment includes a communication circuit I21, a crystal oscillator circuit I22, a watchdog circuit I23, an ICSP program download circuit I24, an intelligent boost circuit 25, a solar cell voltage signal acquisition circuit 26, and a fan after rectification Voltage signal acquisition circuit 27, intelligent boost drive circuit 28, fan rectifier circuit 29, brake circuit 30, buzzer indication/alarm circuit 31, ICSP program download circuit II 32, battery voltage signal acquisition circuit 33, communication circuit II 34, gatekeeper Dog circuit Ⅱ35, crystal oscillator circuit Ⅱ36, human-machine interface 37, two-digit digital tube interface 38, digital tube drive circuit 39, keyboard interface circuit 40, control interface 41, LED indicator circuit 42, two-way load interface circuit 43, boost/ Brake interface 44, communication interface 45, voltage data acquisition port 46, main control MCU chip 47, two-way load interface 48, slave control MCU chip 49, communication circuit I21, crystal oscillator circuit I22, watchdog circuit I23, ICSP program download circuit Ⅰ 24 is connected with the main control MCU chip 47; two PWM wave output pin boost/brake interfaces 44 of the main control MCU chip 47 are connected with the intelligent boost drive circuit 28 and the brake circuit 30 respectively; four of the main control MCU chip 47 The I/O port voltage data acquisition port 46 is respectively connected with the intelligent booster circuit 25, the voltage signal acquisition circuit 27 after fan rectification, the solar cell voltage signal acquisition circuit 26, and the storage battery voltage signal acquisition circuit 33; the main control MCU chip 47 is connected with the communication interface 45 connection, the slave control MCU chip 49 is connected with the communication circuit II34, and the communication circuit II34 is connected with the communication interface 45; the buzzer indication/alarm circuit 31, the ICSP program download circuit II32, the battery voltage signal acquisition circuit 33, and the watchdog circuit II35 , crystal oscillator circuit II 36, and two-way load interface 48 are connected to the slave control MCU chip 49 respectively; the man-machine interface 37 of the slave control MCU chip 49 is connected to the control interface 41, and the control interface 41 is connected to the keyboard interface circuit 40 and the LED indicator circuit 42 respectively. , Two-digit digital tube interface 38 connection; two-way load interface 48 is connected with two-way load interface circuit 43, intelligent boost drive circuit 28 is connected with intelligent boost circuit 25, fan rectifier circuit 29 is connected with intelligent boost circuit 25, intelligent The booster circuit 25 is connected to the voltage signal acquisition circuit 27, as shown in FIGS. 3-6.

The communication circuit I21 is connected to the pin 1 and the pin 44 of the main control MCU chip 47 through the chip MAX232, and the crystal oscillator circuit I22 is directly connected to the main control MCU chip 47 through two pins OSC1_1 and OSC2_1; the watchdog circuit I23 passes Two lines labeled WD2 and MCLR_1 are connected to the main control MCU chip 47 .

The main control MCU chip 47 is connected with the communication interface 45 through the pins 24-27, the slave control MCU chip 49 is connected with the communication circuit II 34 through the pins 24-27, and the communication interface 45 is connected with the communication circuit II 34EPROM 93LC66 to realize the communication between the two MCUs. Communication.

The buzzer indication/alarm circuit 31 is connected to each other by the 8 pins RBO of the slave control MCU chip 49; the battery voltage signal acquisition circuit 33 is connected with the 19 pins of the slave control MCU chip 49 and the 22 pins of the main control MCU chip 47 Connection; the watchdog circuit II 35 is connected to the slave control MCU chip 49 through two lines of WD1 and MCLR; And 36 pins are connected with the two-way load interface 48, the two-way load interface 48 is connected with the two-way load interface circuit 43, and the nixie tube drive circuit 39 is connected with the two-way nixie tube interface 38 through sel1 and sel2.

Manual brake button 50, working mode setting plus + button 51, working mode setting minus-button 52 are corresponding to buttons S2, S3 and S4 inside the keyboard interface circuit 40 in Fig. 6 respectively; screwdriver operation hole 53 is on the device The physical hole is added with rubber insulation to avoid the safety problem caused by the conduction of the metal shell of the controller when the screwdriver is operated; the double-digit digital tube 54 corresponds to DS1 in the two-digit digital tube interface 38 in Figure 6, and the red LED light 55 , green LED light Ⅰ 56, and green LED Ⅱ light 57 correspond to LED1, LED2 and LED3 in the LED indicator circuit 42 in Fig. 6 respectively, and are used to indicate braking or alarm respectively, and the specifications for connecting to the storage battery are 12V and 24V; two-way direct current The circuit realization of load terminal 58, DC lead storage battery terminal 59, solar panel terminal 60, and fan terminal 61 is shown in Figure 2, and the specific wiring in Figures 3 to 6 is connected by network labels, specifically as follows: two circuits The three terminals (+), (-) and (-) of the DC load terminal 58 are respectively corresponding to the positive pole of the storage battery and Load1- and Load2- of the two-way load interface circuit 43 in Fig. 6; the + of the DC lead-acid battery terminal 59 , - correspond to the Battery and the ground wire of the battery voltage signal acquisition circuit 33 in Fig. 5 respectively; (~), (~), (~) in the connection terminal 61 respectively correspond to WindA, WindB and WindC of the fan rectifier circuit 9 in FIG. 4 .

When the device described in this embodiment is in use: press the control cabinet power switch 2, the control cabinet 1 starts to run, the control cabinet test display panel display 5 and the frequency converter 10 start to work, and the frequency converter 10 is set by the frequency converter mode setting key 6 working mode, and then press the frequency converter running key 7, the frequency converter 10 only works in the frequency conversion speed regulation mode at this time, and then, through the frequency converter frequency conversion speed regulation deceleration setting key 11 and the frequency converter frequency conversion speed regulation acceleration setting key 12 to respectively Set the speed of the three-phase AC motor 17 to decrease and increase. After pressing the inverter frequency conversion speed regulation start key 8, the three-phase AC motor 17 is slowly changed from the previous speed to the set speed. At this time, the three-phase The three-phase AC motor 17 drives the three-phase AC generator 19 to rotate through the transmission device 18. If the three-phase AC motor 17 rotates too fast, the transmission device 18 will slip so that the three-phase AC generator 19 rotates too fast. The current impact damage that controller 16 brings, if this utility model is operated normally, control cabinet normal operation indicator lamp 3 will be always on; The voltage output value of the phase alternator 19 and the charging and discharging status of the storage battery pack 13, if the system fails, the fault indicator light 4 of the control cabinet will flash and give an alarm to inform the operator to take measures such as corresponding power-off inspections. The wind-solar hybrid power generation system After the test is completed, press the inverter frequency conversion speed regulation stop key 9, the rotating speed of the three-phase AC motor 17 will gradually decrease to zero from the set value, and the rotating speed of the three-phase AC generator 19 will also gradually decrease to zero correspondingly, and then shut off Open the control cabinet power switch 2 to make the whole control cabinet stop working, and then disconnect the wiring of the solar panel 14, the storage battery pack 13 and the controller in turn.

It can be seen from this embodiment that the wind-solar hybrid power generation system test device not only realizes the real-time collection, display, analysis and processing of the wind-solar hybrid power generation system operating data, but also integrates the display interface and frequency converter in the control cabinet, The human-computer interaction is good, which improves the operability, controllability and safety of the wind-solar hybrid power generation system test. In addition, the wind-solar hybrid power generation system test device is easy to install and easy to maintain, achieving the expected results.

Example 2

The wind-solar hybrid power generation system test device described in this embodiment includes a control cabinet 1, a storage battery pack 13, a solar panel 14, a DC load street lamp 15, a dual-MCU wind-solar hybrid controller 16, a three-phase AC motor 17, a three-phase AC The generator 19 and the rack platform 20, the control cabinet 1 is provided with a display 5 and an AC-DC-AC inverter 10, the serial port of the control cabinet 1 is connected to the dual-MCU wind-solar hybrid controller 16, and the dual-MCU wind-solar hybrid controller 16 is respectively It is connected with battery pack 13, solar panel 14, DC load street lamp 15, and three-phase AC generator 19, and the three-phase AC generator 19 and three-phase AC motor 17 are connected through mechanical transmission 18 and fixed on the frame platform 20 .

The dual-MCU wind-solar hybrid controller 16 in this embodiment includes a communication circuit I21, a crystal oscillator circuit I22, a watchdog circuit I23, an ICSP program download circuit I24, an intelligent boost circuit 25, a solar cell voltage signal acquisition circuit 26, and a fan after rectification Voltage signal acquisition circuit 27, intelligent boost drive circuit 28, fan rectifier circuit 29, brake circuit 30, buzzer indication/alarm circuit 31, ICSP program download circuit II 32, battery voltage signal acquisition circuit 33, communication circuit II 34, gatekeeper Dog circuit Ⅱ35, crystal oscillator circuit Ⅱ36, human-machine interface 37, two-digit digital tube interface 38, digital tube drive circuit 39, keyboard interface circuit 40, control interface 41, LED indicator circuit 42, two-way load interface circuit 43, boost/ Brake interface 44, communication interface 45, voltage data acquisition port 46, main control MCU chip 47, two-way load interface 48, slave control MCU chip 49, communication circuit I21, crystal oscillator circuit I22, watchdog circuit I23, ICSP program download circuit Ⅰ 24 is connected with the main control MCU chip 47; two PWM wave output pin boost/brake interfaces 44 of the main control MCU chip 47 are connected with the intelligent boost drive circuit 28 and the brake circuit 30 respectively; four of the main control MCU chip 47 The I/O port voltage data acquisition port 46 is respectively connected with the intelligent booster circuit 25, the voltage signal acquisition circuit 27 after fan rectification, the solar cell voltage signal acquisition circuit 26, and the storage battery voltage signal acquisition circuit 33; the main control MCU chip 47 is connected with the communication interface 45 connection, the slave control MCU chip 49 is connected with the communication circuit II34, and the communication circuit II34 is connected with the communication interface 45; the buzzer indication/alarm circuit 31, the ICSP program download circuit II32, the battery voltage signal acquisition circuit 33, and the watchdog circuit II35 , crystal oscillator circuit II 36, and two-way load interface 48 are connected to the slave control MCU chip 49 respectively; the man-machine interface 37 of the slave control MCU chip 49 is connected to the control interface 41, and the control interface 41 is connected to the keyboard interface circuit 40 and the LED indicator circuit 42 respectively. , Two-digit digital tube interface 38 connection; two-way load interface 48 is connected with two-way load interface circuit 43, intelligent boost drive circuit 28 is connected with intelligent boost circuit 25, fan rectifier circuit 29 is connected with intelligent boost circuit 25, intelligent The booster circuit 25 is connected to the voltage signal acquisition circuit 27, as shown in FIGS. 3-6.

The communication circuit I21 is connected to the pin 1 and the pin 44 of the main control MCU chip 47 through the chip MAX232, and the crystal oscillator circuit I22 is directly connected to the main control MCU chip 47 through two pins OSC1_1 and OSC2_1; the watchdog circuit I23 passes Two lines labeled WD2 and MCLR_1 are connected to the main control MCU chip 47 .

The main control MCU chip 47 is connected with the communication interface 45 through the pins 24-27, the slave control MCU chip 49 is connected with the communication circuit II 34 through the pins 24-27, and the communication interface 45 is connected with the communication circuit II 34EPROM 93LC66 to realize the communication between the two MCUs. Communication.

Claims (7)

1. a wind and solar hybrid generating system proving installation, it is characterized in that this device comprises: switch board (1), battery pack (13), solar panel (14), DC load street lamp (15), two MCU wind/light complementation controllers (16), three-phase current motor (17), threephase alternator (19) and framework platform (20), switch board (1) is provided with display (5) and ac-dc-ac frequency converter (10), the serial ports of switch board (1) is connected with two MCU wind/light complementation controllers (16), two MCU wind/light complementation controllers (16) respectively and battery pack (13), solar panel (14), DC load street lamp (15), threephase alternator (19) connects, threephase alternator (19) is connected by mechanical driving device (18) with three-phase current motor (17) and is fixed on framework platform (20).

2. wind and solar hybrid generating system proving installation according to claim 1, is characterized in that: switch board (1) be provided with switch board power switch (2), run indicator (3), malfunction indicator lamp (4), frequency converter mode setting button (6), frequency converter operation key (7), frequency converter frequency control bring into operation key (8), frequency converter frequency control key out of service (9), frequency converter (10), frequency converter frequency control slow down key (11) is set, frequency converter frequency control accelerates to arrange key (12).

3. wind and solar hybrid generating system proving installation according to claim 1, is characterized in that: frequency converter (10) carries out speed regulating control to three-phase current motor (17) and drives threephase alternator (19) rotation to form wind power generation simulation system; Solar panel (14) is simulated electricity generation system by manual change's illumination condition to form sun power.

4. wind and solar hybrid generating system proving installation according to claim 1, is characterized in that: described pair of MCU wind/light complementation controller (16) comprises telecommunication circuit I (21), crystal oscillating circuit I (22), watchdog circuit I (23), ICSP program download circuit I (24), intelligently voltage boosting circuit (25), solar array voltage signal acquisition circuit (26), voltage signal acquisition circuit (27) after blower fan rectification, intelligently voltage boosting driving circuit (28), blower fan rectification circuit (29), braking circuit (30), hummer indication/warning circuit (31), ICSP program download circuit II (32), battery tension signal acquisition circuit (33), telecommunication circuit II (34), watchdog circuit II (35), crystal oscillating circuit II (36), man-machine interface (37), double figures code interface tube (38), Nixie tube drive circuit (39), keyboard interface circuit (40), control interface (41), LED indicating circuit (42), two-way loading interfaces circuit (43), interface (44) boosts/brakes, communication interface (45), voltage data gathers port (46), main control MCU chip (47), two-way loading interfaces (48), from control MCU chip (49), telecommunication circuit I (21), crystal oscillating circuit I (22), watchdog circuit I (23), ICSP program download circuit I (24) is connected with main control MCU chip (47), two PWM ripple output pins of main control MCU chip (47) interface (44) that boosts/brake is connected with braking circuit (30) with intelligently voltage boosting driving circuit (28) respectively, four I/O mouth voltage datas of main control MCU chip (47) gather port (46) and are connected with voltage signal acquisition circuit (27), solar array voltage signal acquisition circuit (26), battery tension signal acquisition circuit (33) after intelligently voltage boosting circuit (25), blower fan rectification respectively, main control MCU chip (47) is connected with communication interface (45), is connected with telecommunication circuit II (34) from control MCU chip (49), and telecommunication circuit II (34) is connected with communication interface (45), hummer indication/warning circuit (31), ICSP program download circuit II (32), battery tension signal acquisition circuit (33), watchdog circuit II (35), crystal oscillating circuit II (36), two-way loading interfaces (48) are connected respectively with from control MCU chip (49), be connected with control interface (41) from the man-machine interface (37) of control MCU chip (49), control interface (41) is also connected with keyboard interface circuit (40), LED indicating circuit (42), double figures code interface tube (38) respectively, two-way loading interfaces (48) is connected with two-way loading interfaces circuit (43), intelligently voltage boosting driving circuit (28) is connected with intelligently voltage boosting circuit (25), blower fan rectification circuit (29) is connected with intelligently voltage boosting circuit (25), and intelligently voltage boosting circuit (25) is connected with voltage signal acquisition circuit (27).

5. wind and solar hybrid generating system proving installation according to claim 4, it is characterized in that: described telecommunication circuit I (21) is connected with pin 44 with the pin one of main control MCU chip (47) by chip MAX232, and crystal oscillating circuit I (22) is directly connected with main control MCU chip (47) by two pins of OSC1_1 and OSC2_1; Two circuits that watchdog circuit I (23) is WD2 and MCLR_1 by label are connected with main control MCU chip (47).

6. wind and solar hybrid generating system proving installation according to claim 4, it is characterized in that: main control MCU chip (47) is connected with communication interface (45) by pin two 4-27, be connected with telecommunication circuit II (34) by pin two 4-27 from control MCU chip (49), communication interface (45) is connected with telecommunication circuit II (34) EPROM 93LC66, realizes the communication between two MCU.

7. wind and solar hybrid generating system proving installation according to claim 4, is characterized in that: hummer indication/warning circuit (31) by with from control MCU chip (49) 8 pin RBO be connected; Battery tension signal acquisition circuit (33) is connected with 19 pins from control MCU chip (49), 22 pins of main control MCU chip (47); Watchdog circuit II (35) by two lines of WD1 and MCLR with from control MCU chip (49) be connected; Crystal oscillating circuit II (36) with from control MCU chip (49) OSC1 be connected with OSC2 two pins, be connected with two-way loading interfaces (48) with 36 pins from 35 pins of control MCU chip (49), two-way loading interfaces (48) is connected with two-way loading interfaces circuit (43), and Nixie tube drive circuit (39) is connected with double figures code interface tube (38) with sel2 by sel1.