CN203026944U - Intelligent motor electricity-saving device - Google Patents
Intelligent motor electricity-saving device Download PDFInfo
- Publication number
- CN203026944U CN203026944U CN2013200084370U CN201320008437U CN203026944U CN 203026944 U CN203026944 U CN 203026944U CN 2013200084370 U CN2013200084370 U CN 2013200084370U CN 201320008437 U CN201320008437 U CN 201320008437U CN 203026944 U CN203026944 U CN 203026944U
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- Prior art keywords
- rectifier
- electric machine
- intelligent electric
- battery saving
- loop
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- 239000003990 capacitor Substances 0.000 claims abstract description 19
- 230000004907 flux Effects 0.000 claims abstract description 4
- 230000006698 induction Effects 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 abstract description 4
- 230000009466 transformation Effects 0.000 abstract description 3
- 230000001629 suppression Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 6
- 230000005764 inhibitory process Effects 0.000 description 3
- 230000000295 complement effect Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000010349 pulsation Effects 0.000 description 2
- 230000001052 transient effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/40—Arrangements for reducing harmonics
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- Control Of Ac Motors In General (AREA)
- Inverter Devices (AREA)
Abstract
The utility model discloses an intelligent motor electricity-saving device. The intelligent motor electricity-saving device comprises a cabinet body, wherein an alternating current motor, an incoming line reactor, a rectifier, a filter capacitor, an inverter, a microprocessor and a control system in signal connection are sequentially arranged in the cabinet body, and the rectifier comprises a direct current capacitor and a PWM (pulse width modulation) rectifier module connected with the direct current capacitor; a three-phase voltage type inverter is used as the inverter, and comprises a PWM inversion module and a rotor magnetic field directional vector control module; the control system adopts an asynchronous motor vector control technology with torque, a flux linkage inner loop and a rotational speed outer loop; the rectifier is of a dual-closed loop structure with a current inner loop and a voltage inner loop; and a three-phase symmetrical alternating current voltage source is used as a power supply of the intelligent motor electricity-saving device. The intelligent motor electricity-saving device has the advantages of simple control loop and simplicity in mounting, and the alternating current power supply adopts a dual-PWM transformation technology, so that the load situation of the motor is tracked and automatically detected in real time and power tracking and adjustment, harmonic suppression, reactive power compensation and frequency conversion are integrated.
Description
Technical field
The utility model relates to a kind of battery saving arrangement, particularly a kind of intelligent electric machine battery saving arrangement.
Background technology
Existing electrical machine energy-saving device, of a great variety, what consumption was maximum mainly can be divided into three major types, and the one, electric capacitor carries out centralized compensation, the power save mode of divide into groups compensation, local compensation as main utilizing to reduce reactive loss; The 2nd, to eliminate mains by harmonics, transition, reduce the power save mode of power consumption, and utilize capacitor to carry out reactive power compensation, reduce the method for reactive loss; The 3rd, according to the machine operation situation, utilize frequency converter to change condition of power supply, make machine operation at the power save mode of best, power save mode, the frequency converter power savings can reach more than 20%, but expensive and part frequency converter affects power grid quality and is restricted because of it.
The utility model content
For the problem that prior art exists, the utility model aims to provide a kind of multifunctional intellectual motor power-saving device that integrates power tracking adjustment, harmonic wave inhibition, reactive power compensation and frequency conversion.
The utility model provides a kind of intelligent electric machine battery saving arrangement, comprise cabinet, built-in alternating current machine, reactor, rectifier, filter capacitor, inverter, microprocessor and the control system that connects according to signal of described cabinet, described rectifier comprises direct current capacitor and the PWM rectification module that is connected with described direct current capacitor.
Preferably, described inverter is three-phase voltage-type inverter, and described three-phase voltage-type inverter comprises PWM inversion module and rotor flux-orientation vector control module.
Preferably, described control system adopts the Vector Control System of Induction Motor technology with torque, Flux Loop and rotating speed outer shroud.
Preferably, described rectifier is the double circle structure of current inner loop, voltage inter-loop.
Preferably, the power supply of described intelligent electric machine battery saving arrangement is the three-phase symmetrical alternating-current voltage source.
Its AC power of the described intelligent electric machine battery saving arrangement that the utility model provides adopts the three-phase symmetrical alternating-current voltage source; The rectification link adopts the PWM commutation technique, real-time tracking, automatically detects the loading condition of motor, adjusts input voltage and the electric current of motor in good time, makes it to require to be complementary with bearing power, thereby reaches the purpose of economize on electricity; The inversion link adopts PWM inversion transformation technique and rotor field-oriented vector control system, can realize that the decoupling zero reactor of torque and stator magnetic linkage can reduce harmonic current, Limited Current pulsation and suppress the transient state overcurrent; Its DC link adopts direct current capacitor can guarantee the stable of output dc voltage; Therefore described intelligent electric machine battery saving arrangement control loop is simple, install simple and easyly, integrate power tracking adjustment, harmonic wave inhibition, reactive power compensation and frequency conversion.
Description of drawings
Fig. 1 is the structural principle schematic diagram of a kind of intelligent electric machine battery saving arrangement that the utility model proposes.
The drawing reference numeral explanation
The 1-alternating current machine, 2-PWM inversion module, 3-direct current capacitor, 4-PWM rectification module, 5-alternating-current voltage source.
Embodiment
Further illustrate the technical solution of the utility model below in conjunction with accompanying drawing and by embodiment:
Please refer to Fig. 1, the utility model provides a kind of intelligent electric machine battery saving arrangement, comprises cabinet (not shown), built-in alternating current machine 1, reactor, rectifier, filter capacitor, inverter, microprocessor and the control system that connects according to signal of described cabinet; Described alternating current machine 1, reactor, rectifier, filter capacitor, inverter, microprocessor and control system adopt integrated design to be built in cabinet.
Please refer to Fig. 1, described rectifier comprises direct current capacitor 3 and the PWM rectification module 4 that is connected with described direct current capacitor 3, the rectification link adopts the PWM commutation technique, DC link adopts direct current capacitor to guarantee the stable of output dc voltage, and the rectification stage of described rectifier adopts the double circle structure of current inner loop, voltage inter-loop, can guarantee the stable of electric current and voltage.
Please refer to Fig. 1, described inverter is three-phase voltage-type inverter, and described three-phase voltage-type inverter comprises PWM inversion module 2 and rotor flux-orientation vector control module; Described rotor field-oriented vector control module can realize the decoupling zero of torque and stator magnetic linkage.
Control system adopts the Vector Control System of Induction Motor technology with torque, Flux Loop and rotating speed outer shroud.
The power supply of described intelligent electric machine battery saving arrangement is the three-phase symmetrical alternating-current voltage source.
Its AC power of the described intelligent electric machine battery saving arrangement that the utility model provides adopts the three-phase symmetrical alternating-current voltage source; The rectification link adopts the PWM commutation technique, real-time tracking, automatically detects the loading condition of motor, adjusts input voltage and the electric current of motor in good time, makes it to require to be complementary with bearing power, thereby reaches the purpose of economize on electricity; The inversion link adopts PWM inversion transformation technique and rotor field-oriented vector control system, can realize that the decoupling zero reactor of torque and stator magnetic linkage can reduce harmonic current, Limited Current pulsation and suppress the transient state overcurrent; Its DC link adopts direct current capacitor can guarantee the stable of output dc voltage; Therefore described intelligent electric machine battery saving arrangement control loop is simple, install simple and easyly, integrate power tracking adjustment, harmonic wave inhibition, reactive power compensation and frequency conversion.
The above has carried out exemplary description to the utility model by reference to the accompanying drawings; obvious realization of the present utility model is not subject to the restrictions described above; as long as the various improvement of having adopted technical solutions of the utility model to carry out; or without improving, design of the present utility model and technical scheme are directly applied to other occasion, all in protection range of the present utility model.
Claims (5)
1. intelligent electric machine battery saving arrangement, it is characterized in that, comprise cabinet, built-in alternating current machine, reactor, inverter, rectifier, filter capacitor, microprocessor and the control system that connects according to signal of described cabinet, described rectifier comprises direct current capacitor and the PWM rectification module that is connected with described direct current capacitor.
2. intelligent electric machine battery saving arrangement according to claim 1, is characterized in that, described inverter is three-phase voltage-type inverter, and described three-phase voltage-type inverter comprises PWM inversion module and rotor flux-orientation vector control module.
3. intelligent electric machine battery saving arrangement according to claim 1, is characterized in that, described control system adopts the Vector Control System of Induction Motor technology with torque, Flux Loop and rotating speed outer shroud.
4. intelligent electric machine battery saving arrangement according to claim 1, is characterized in that, described rectifier is the double circle structure of current inner loop, voltage inter-loop.
5. intelligent electric machine battery saving arrangement according to claim 1, is characterized in that, the power supply of described intelligent electric machine battery saving arrangement is the three-phase symmetrical alternating-current voltage source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013200084370U CN203026944U (en) | 2013-01-08 | 2013-01-08 | Intelligent motor electricity-saving device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013200084370U CN203026944U (en) | 2013-01-08 | 2013-01-08 | Intelligent motor electricity-saving device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203026944U true CN203026944U (en) | 2013-06-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013200084370U Expired - Fee Related CN203026944U (en) | 2013-01-08 | 2013-01-08 | Intelligent motor electricity-saving device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203026944U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10103669B2 (en) | 2016-01-26 | 2018-10-16 | Andras Lelkes | Control method for an electrically excited motor and inverter |
-
2013
- 2013-01-08 CN CN2013200084370U patent/CN203026944U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10103669B2 (en) | 2016-01-26 | 2018-10-16 | Andras Lelkes | Control method for an electrically excited motor and inverter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170921 Address after: Tongzi high tech Development Zone in Hunan province Changsha Po Road 410000 No. 229 gold Hongyuan incubator building Patentee after: Hunan Tianyu Internet Polytron Technologies Inc Address before: 410000 Hunan province Changsha City Lugu high tech Development Zone, 627 Avenue New Center building B-2 Changhai Lugu 4 floor room 410 Patentee before: Hunan Tianjia Electronic Technology Co., Ltd. |
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| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130626 Termination date: 20190108 |
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| CF01 | Termination of patent right due to non-payment of annual fee |