CN201222711Y - Electric energy feedback device for electric control system of industrial sewing machine - Google Patents
Electric energy feedback device for electric control system of industrial sewing machine Download PDFInfo
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- CN201222711Y CN201222711Y CNU2008200292955U CN200820029295U CN201222711Y CN 201222711 Y CN201222711 Y CN 201222711Y CN U2008200292955 U CNU2008200292955 U CN U2008200292955U CN 200820029295 U CN200820029295 U CN 200820029295U CN 201222711 Y CN201222711 Y CN 201222711Y
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- 238000009958 sewing Methods 0.000 title claims description 21
- 239000003990 capacitor Substances 0.000 claims abstract description 24
- 238000001914 filtration Methods 0.000 claims abstract description 15
- 238000001514 detection method Methods 0.000 claims description 33
- 230000001172 regenerating effect Effects 0.000 description 12
- 238000005265 energy consumption Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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Abstract
The utility model discloses an electrical energy feedback device of an electric control system of an industrial seamer, which comprises an electric network, a drive motor of the industrial seamer, a controller, and an inversion module I and an inversion module II which are driven by the controller, wherein the electric network is connected with the inversion module II through a rectification filtering circuit, the inversion module II is connected with the motor, a bus capacitor is connected in parallel on a direct current bus between the rectification filtering circuit and the inversion module II, the bus capacitor is connected with the inversion module I, the inversion module I is connected with the electric network, a current detecting circuit I is connected in series between the bus capacitor and the inversion module I, a current detecting circuit II is connected in series between the bus capacitor and the inversion module II, the current detecting circuit I and the current detecting circuit II are connected with the controller, an optical-electricity encoder is arranged on the motor, and the optical-electricity encoder is connected with the controller. The device has reasonable structure, reliability and safety, simple and convenient use and operation, and can return the electric energy which is generated by the electric control system to the electric network in time and can utilize the electric energy again, and the recovered electric energy can fully satisfy the standards of the national electric network.
Description
Technical field
The utility model relates to a kind of device that electric energy can be fed back to electrical network, especially relates to the electronic control system electric energy feedback apparatus of a kind of industrial sewing machine.
Background technology
In the use of industrial sewing machine servo controller; often have from a high speed to low speed, from a high speed to the course of work that stops; in this process; the pairing rotating speed of rotating ratio servo controller output frequency of load drive motor is taller; stored mechanical energy converts electric energy to through asynchronous motor in the drive system at this moment, thereby motor is in regenerative power generation state.At present, by brake resistance unit energy consumption and direct current energy consumption this part electric energy is handled usually.Wherein, brake resistance unit energy consumption be at motor from a high speed to low-speed motion or from a high speed when stopping, utilizing the brake resistance that is arranged in the DC loop to absorb the regenerative electric energy of motor; And direct current energy consumption is to utilize the regenerative electric energy of the rotor circuit absorption motor of motor, and above-mentioned dual mode has caused very big waste to the regenerative electric energy of motor, and produces a large amount of heats, brings very big pollution to environment.
The utility model content
Technical problem to be solved in the utility model is at above-mentioned deficiency of the prior art, provide a kind of industrial sewing machine electronic control system electric energy feedback apparatus, it is rational in infrastructure, safe and reliable and use easy and simple to handlely, the timely feedback grid of the electric energy that electronic control system produced can be utilized once more.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: the electronic control system electric energy feedback apparatus of a kind of industrial sewing machine, comprise drive motors, the controller of electrical network, described industrial sewing machine and inversion module one and the inversion module two that drives by controller, described electrical network joins with inversion module two behind current rectifying and wave filtering circuit, and described inversion module two joins with motor; On the DC side bus between described current rectifying and wave filtering circuit and the inversion module two and be connected to bus capacitor, described bus capacitor is attempted by on the inversion module one that the inversion feedback electric energy uses, described inversion module one gets access to grid, it is characterized in that: one of described bus capacitor and inversion module are serially connected with current detection circuit one, be serially connected with current detection circuit two between described inversion module two and motor, described current detection circuit one and current detection circuit two all connect controller; On the described motor photoelectric encoder is installed, described photoelectric encoder connects controller.
Described controller is a master cpu, and it drives inversion module one and inversion module two by the PWM module respectively; Described inversion module one and inversion module two be the three-phase inversion module for being made up of three phase isolated gate transistor IGBT all.
Described inversion module two is the IPM module, and described IPM module and PWM intermodule are connected to the optocoupler drive circuit.
Diode that also is serially connected with forward conduction of described bus capacitor and inversion module.
Be serially connected with reactor between described inversion module one and electrical network.
Described current detection circuit one and current detection circuit two are current sensor.
Described current detection circuit two connects controller behind the limit filtration circuit.
The utility model compared with prior art has the following advantages, and 1, rational in infrastructure and use easy and simple to handle; 2, safe and reliable, in real time current in loop of living in is separately accurately detected by current detection circuit one and current detection circuit two, the two is sent to controller with detected current signal simultaneously, and controller is tackled inversion module one mutually and inversion module is made control; 3, practical, the timely feedback grid of electric energy that the electronic control system of industrial sewing machine can be produced utilizes once more, good energy-conserving effect, on the original basis further energy-conservation 6%～10%.In a word, the utility model has solved and has had waste of energy problem and problem of environmental pollution in the prior art, and it is reversible that energy-saving controller grid side current transformer is become, and in time regenerative electric energy is recovered to electrical network on the spot, thereby has reached energy-conservation effect.Used good Circuit Design and suitable filter in addition, guaranteed that the electric energy that reclaims meets the national grid standard fully.
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Description of drawings
Fig. 1 is a structured flowchart of the present utility model.
Fig. 2 is the circuit theory diagrams of inversion module two, motor and bus capacitor.
Fig. 3 is the circuit theory diagrams of inversion module one and peripheral circuit thereof.
Description of reference numerals:
The 1-controller; The 2-I/O interface; The 3-PWM module;
The 4-supervisory keyboard; The 5-display; 6-inversion module one;
7-inversion module two; The 8-motor; The 9-photoelectric encoder;
The 11-bus capacitor; The 12-electrical network; The 13-current rectifying and wave filtering circuit;
14-optocoupler drive circuit; 15-limit filtration circuit; The 16-diode;
The 17-reactor; The 18-A/D modular converter.
Embodiment
As shown in Figure 1, the utility model comprises drive motors 8, the controller 1 of electrical network 12, industrial sewing machine and inversion module 1 and the inversion module 27 that is driven by controller 1.Wherein, electrical network 12 joins with inversion module 27 behind current rectifying and wave filtering circuit 13, and on the DC side bus between current rectifying and wave filtering circuit 13 and the inversion module 27 and to be connected to bus capacitor 11 be capacitor C, described bus capacitor 11 also connects on the inversion module 1 that the inversion feedback electric energy uses, and inversion module 1 gets access to grid 12.In addition, inversion module 27 joins with the motor 8 of industrial sewing machine, photoelectric encoder 9 is installed on the motor 8, and described photoelectric encoder 9 connects controller 1.Simultaneously, one 6 of described bus capacitor 11 and inversion modules also are serially connected with the diode 16 of forward conduction, and inversion module 1 and 12 in electrical network are serially connected with reactor 17.
In conjunction with Fig. 2, Fig. 3, described controller 1 is a master cpu, it drives by 3 pairs of inversion modules 1 of PWM module and inversion module 27 respectively, described inversion module 1 and inversion module 27 be the three-phase inversion module for being made up of three phase isolated gate transistor I GBT all, be that inversion module 1 is connected to form by six gated transistor IGBT of T1-T6, inversion module 27 is connected to form by six gated transistor IGBT of D1-D6.Above-mentioned gated transistor IGBT is by being made up of a device for power switching and a fly-wheel diode, during the regenerative braking of the electronic control system of industrial sewing machine, above-mentioned six gated transistors all adopt conduction mode in twos, all there are 2 power tube conductings each time period, and per 1/6 cycle commutation once, and move as pulse-width modulation PWM.At a PWM in the cycle, when industrial sewing machine by at a high speed to low speed, or by at a high speed when stopping, the stator winding inductance of motor 8 discharges, thereby enters generating state, and described motor 8 utilizes the principle of the boost chopper feedback of generating electricity.
And inversion module 7 is the IPM module, and 3 of IPM module and PWM modules also are connected to optocoupler drive circuit 14, that is to say, controller 1 drives by PWM module 3 and 14 pairs of inversion modules 27 of optocoupler drive circuit.One of them PWM module 3 is the inner integrated module of master cpu, the external module that another PWM module 3 connects in addition; In this embodiment, the PWM module 3 that inversion module 27 is driven is the inside integration module of master cpu, and the PWM module 3 that inversion module 1 drives is the external module of master cpu.And outer supervisory keyboard 4 and the display 5 of also being provided with of controller 1, its supervisory keyboard 4 and display 5 all join with the I/O interface 2 of controller 1.
Among Fig. 3, the input of inversion module 1 connects DC side Z, L end by two diode D1 and D2, to guarantee during regenerative braking the one-way flow of the electric energy of feedback on inversion module two 7-＞inversion module one 6-＞electrical network 12 directions.And C3, C4 are electrolytic capacitor filter, and R4, R5 are respectively the grading resistor of C3, C4; R5 is the current-limiting resistance of capacitor C charging, and it excises by relay J P1.And be that balanced voltage is poor in the i.e. effect of three reactor L1-L3 of reactor 17 of inversion module 1 and 12 serial connections of electrical network, current limliting and filtering.
In addition, bus capacitor 11 and inversion module 1 are serially connected with current detection circuit one between going back, and 8 in inversion module 27 and motor are serially connected with current detection circuit two equally, current detection circuit one and current detection circuit two all connect controller 1, and current detection circuit one and current detection circuit two are current sensor 10.Wherein, the current signal that current detection circuit one is detected is transported to the A/D modular converter 18 of controller 1, and its current sensor 10 provides signal accurately in order to detect the feedback electric current for realizing the feedback Current Control; Simultaneously, in regenerative braking, the size of current of control feedback rationally is also most important, the size of feedback electric current must satisfy the requirement of energy feedback power, if system's feedback power is less than the power output of motor 8 when the generating state, DC bus-bar voltage will continue to raise so, and because the voltage of electrical network 12 is certain, and the size of system's feedback power is by the size decision of feedback electric current so; In addition, the size of feedback electric current also must be controlled in the rated range of employed gated transistor IGBT.And current detection circuit two connects controller 1 behind limit filtration circuit 15, be that the current signal that detected of current detection circuit two is behind limit filtration circuit 15, transport to the A/D modular converter 18 of controller 1, current detection circuit two detects the electric current on the motor 8 in real time.
The course of work of the present utility model is: in the course of work of the electronic control system of industrial sewing machine, in real time current in loop of living in is separately detected by current detection circuit one and current detection circuit two, and the current signal that is detected all is sent to controller 1.Simultaneously, driven by 1 pair of inversion module 1 of controller and inversion module 27, when motor 8 is operated in motoring condition following time, inversion module 1 is in off state, and inversion module 27 is the driver element of IPM module as motor 8, and motor 8 is driven; And when motor 8 is in regenerative power generation state, 27 of inversion modules are in order to the inversion feedback, carry out diode rectification by antiparallel afterflow among the gated transistor IGBT in the IPM module, it is Z that the electric energy that motor 8 is produced feeds back to DC side by motor side, the L side, commutating voltage is added on the bus capacitor 11 afterwards, when if generated output is big, the busbar voltage at bus capacitor 11 two ends will rise, when DC bus-bar voltage continues to raise and surpasses the operating voltage that starts inversion module 1, controller 1 drives inversion module 1 and starts working, with electric energy from the DC side feedback to the electrical network 12, when DC bus-bar voltage dropped to the operating voltage of closing inversion module 1, inversion module 1 was returned to closed condition again; Wherein, the feedback current signal that current detection circuit one is detected, the energy respective reaction goes out the busbar voltage at bus capacitor 11 two ends.After during entering regenerative braking, the electric energy that motor 8 is produced is along the unidirectional direction feedback of inversion module two 7-＞inversion module one 6-＞electrical network 12.Simultaneously, photoelectric encoder 9 is the speed of reflection motors 8 in real time, and current detection circuit two detects the electric current on the motor 8 in real time, and show by the real-time current value that current detection circuit one and current detection circuit two are detected of display 5.
In a word, when DC bus-bar voltage raise gradually, this moment, then corresponding startup inversion module 1 fed back to electrical network 12 with unnecessary energy through reactor 17 according to current detection circuit one detected current signal.And reactor 17 will bear the difference between the voltage of DC bus-bar voltage and electrical network 12, and reactor 17 will cushion the reactive power of harmonic wave simultaneously.Specifically: when DC bus-bar voltage surpasses the peak value of line voltage, rectifier bridge turn-offs owing to bearing back-pressure, when DC bus-bar voltage continues to raise and surpasses the operating voltage that starts inversion module 1, inversion module 1 is started working, with electric energy from the DC side feedback to the electrical network 12, when DC bus-bar voltage dropped to the operating voltage of closing inversion module 1, inversion module 1 was closed again.
In practice, consider the fluctuation of electrical network 12, according to the dc voltage value that the intermediate link of frequency converter can bear, the line voltage value allows upwards fluctuation+20% when utilizing regenerative braking again, then generally when busbar voltage be that direct voltage equals
The time, start inversion module 1 and enter the regenerative braking state, wherein, U
eEffective value for line voltage.
The above; it only is preferred embodiment of the present utility model; be not that the utility model is imposed any restrictions; everyly any simple modification that above embodiment did, change and equivalent structure are changed, all still belong in the protection range of technical solutions of the utility model according to the utility model technical spirit.
Claims (7)
1. electronic control system electric energy feedback apparatus of industrial sewing machine, comprise drive motors (8), the controller (1) of electrical network (12), described industrial sewing machine and inversion module one (6) and the inversion module two (7) that drives by controller (1), described electrical network (12) joins with inversion module two (7) behind current rectifying and wave filtering circuit (13), and described inversion module two (7) joins with motor (8); On the DC side bus between described current rectifying and wave filtering circuit (13) and the inversion module two (7) and be connected to bus capacitor (11), described bus capacitor (11) is attempted by on the inversion module one (6) that the inversion feedback electric energy uses, described inversion module one (6) get access to grid (12), it is characterized in that: be serially connected with current detection circuit one between described bus capacitor (11) and inversion module one (6), be serially connected with current detection circuit two between described inversion module two (7) and motor (8), described current detection circuit one and current detection circuit two all connect controller (1); Photoelectric encoder (9) is installed on the described motor (8), and described photoelectric encoder (9) connects controller (1).
2. according to the electronic control system electric energy feedback apparatus of the described a kind of industrial sewing machine of claim 1, it is characterized in that: described controller (1) is a master cpu, and it drives inversion module one (6) and inversion module two (7) by PWM module (3) respectively; Described inversion module one (6) and inversion module two (7) be the three-phase inversion module for being made up of three phase isolated gate transistor IGBT all.
3. according to the electronic control system electric energy feedback apparatus of the described a kind of industrial sewing machine of claim 2, it is characterized in that: described inversion module two (7) is the IPM module, is connected to optocoupler drive circuit (14) between described IPM module and PWM module (3).
4. according to claim 1 or the electronic control system electric energy feedback apparatus of 2 described a kind of industrial sewing machines, it is characterized in that: the diode (16) that also is serially connected with forward conduction between described bus capacitor (11) and inversion module one (6).
5. according to claim 1 or the electronic control system electric energy feedback apparatus of 2 described a kind of industrial sewing machines, it is characterized in that: be serially connected with reactor (17) between described inversion module one (6) and electrical network (12).
6. according to claim 1 or the electronic control system electric energy feedback apparatus of 2 described a kind of industrial sewing machines, it is characterized in that: described current detection circuit one and current detection circuit two are current sensor (10).
7. according to the electronic control system electric energy feedback apparatus of the described a kind of industrial sewing machine of claim 6, it is characterized in that: described current detection circuit two connects controller (1) behind limit filtration circuit (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200292955U CN201222711Y (en) | 2008-06-06 | 2008-06-06 | Electric energy feedback device for electric control system of industrial sewing machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200292955U CN201222711Y (en) | 2008-06-06 | 2008-06-06 | Electric energy feedback device for electric control system of industrial sewing machine |
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| Publication Number | Publication Date |
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| CN201222711Y true CN201222711Y (en) | 2009-04-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU2008200292955U Expired - Fee Related CN201222711Y (en) | 2008-06-06 | 2008-06-06 | Electric energy feedback device for electric control system of industrial sewing machine |
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| CN (1) | CN201222711Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102006007A (en) * | 2010-12-10 | 2011-04-06 | 深圳市航盛电子股份有限公司 | Motor control system of electric automobile |
| CN104843568A (en) * | 2015-05-29 | 2015-08-19 | 西继迅达（许昌）电梯有限公司 | Digital servo elevator driver |
| CN109488581A (en) * | 2018-09-12 | 2019-03-19 | 中国石油天然气股份有限公司 | Control system and pumping unit of one-unit, two-well, mutual-balanced direct-drive pumping unit |
| CN109617042A (en) * | 2018-12-21 | 2019-04-12 | 浙江众邦机电科技有限公司 | A kind of control device of industrial sewing machine DC bus-bar voltage |
| CN109778433A (en) * | 2019-01-23 | 2019-05-21 | 浙江众邦机电科技有限公司 | The feedback control system and method for a kind of sewing machine and its brake energy |
| CN114244188A (en) * | 2021-12-24 | 2022-03-25 | 无锡新马赫动力控制有限公司 | Braking energy recovery system, frequency conversion all-in-one machine and working method |
| CN118971363A (en) * | 2024-08-08 | 2024-11-15 | 天津博绅电气设备科技有限公司 | Frequency converter drive braking energy feedback device |
-
2008
- 2008-06-06 CN CNU2008200292955U patent/CN201222711Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102006007A (en) * | 2010-12-10 | 2011-04-06 | 深圳市航盛电子股份有限公司 | Motor control system of electric automobile |
| CN102006007B (en) * | 2010-12-10 | 2013-01-09 | 深圳市航盛电子股份有限公司 | Motor control system of electric automobile |
| CN104843568A (en) * | 2015-05-29 | 2015-08-19 | 西继迅达（许昌）电梯有限公司 | Digital servo elevator driver |
| CN109488581A (en) * | 2018-09-12 | 2019-03-19 | 中国石油天然气股份有限公司 | Control system and pumping unit of one-unit, two-well, mutual-balanced direct-drive pumping unit |
| CN109617042A (en) * | 2018-12-21 | 2019-04-12 | 浙江众邦机电科技有限公司 | A kind of control device of industrial sewing machine DC bus-bar voltage |
| CN109778433A (en) * | 2019-01-23 | 2019-05-21 | 浙江众邦机电科技有限公司 | The feedback control system and method for a kind of sewing machine and its brake energy |
| CN114244188A (en) * | 2021-12-24 | 2022-03-25 | 无锡新马赫动力控制有限公司 | Braking energy recovery system, frequency conversion all-in-one machine and working method |
| CN118971363A (en) * | 2024-08-08 | 2024-11-15 | 天津博绅电气设备科技有限公司 | Frequency converter drive braking energy feedback device |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090415 Termination date: 20100606 |