CN109309383A - Harmonic current compensation control device based on Repetitive controller - Google Patents
Harmonic current compensation control device based on Repetitive controller Download PDFInfo
- Publication number
- CN109309383A CN109309383A CN201710627923.3A CN201710627923A CN109309383A CN 109309383 A CN109309383 A CN 109309383A CN 201710627923 A CN201710627923 A CN 201710627923A CN 109309383 A CN109309383 A CN 109309383A
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- China
- Prior art keywords
- controller
- current
- harmonic
- compensation
- converter module
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/01—Arrangements for reducing harmonics or ripples
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/18—Arrangements for adjusting, eliminating or compensating reactive power in networks
-
- 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
-
- 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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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The present invention provides a kind of harmonic current compensation control device based on Repetitive controller, it can be used on power distribution network to the transmission line of electricity between charging pile, it includes for acquiring transmission line of electricity voltage, the voltage transformer of current signal, current transformer, for calculating the controller of simultaneously output harmonic wave current compensation control signal according to the voltage and current signal of acquisition, the grid-connected inductance of the converter module of harmonic compensation current required for accordingly being generated for the control signal of the harmonic current compensation according to transmitted by controller and the harmonic compensation current access transmission line of electricity for exporting converter module；Controller adds the controller of the double -loop control structure of repetitive controller outer ring using PI control inner ring.In the use of the present invention, can be realized zero static difference tracking harmonic wave, compensation precision is high, rapid dynamic response speed, good operating stability；Structure is simple, cost is not high, and access charging pile distribution system is convenient when use, easy to spread.
Description
Technical field
The present invention relates to charging pile distribution system harmonic controling fields, and in particular to a kind of harmonic wave electricity based on Repetitive controller
Stream compensation control device.
Background technique
Charging pile is actually the Switching Power Supply for using power electronic technique, in actual use inevitable real estate
Raw harmonic and reactive currents influence the power quality of power grid.For power grid, with being widely used for charging pile, vehicle-mounted charge
Device will be harmonic source one by one, seriously affect the power quality and stability of power grid；And since the presence of harmonic wave will influence
The accuracy of charging pile charge system and the stability of communication system.Currently, being directed to the power quality controlling of charging pile power distribution network
System or device have been shown in research, but mostly there is the problems such as dynamic response is relatively slow, harmonic compensation precision is not high.
Summary of the invention
The purpose of the present invention is: aiming at the problems existing in the prior art, provide that a kind of structure is simple, cost is not high, makes
Used time can carry out the harmonic current based on Repetitive controller that rapidly and efficiently compensation is administered to the harmonic current that charging pile generates and mend
Repay control device.
The technical scheme is that the harmonic current compensation control device of the invention based on Repetitive controller, structure
Feature is: including voltage transformer, current transformer, controller, converter module and grid-connected inductance；
Voltage transformer and current transformer are electrically connected with the controller；Converter module is electrically connected with the controller；Grid-connected electricity
One end of sense is electrically connected with converter module；In use, the other end of grid-connected inductance is electrically connected with transmission line of electricity；Mutual induction of voltage
Device and current transformer setting are on the transmission line；Wherein:
Voltage transformer and current transformer for the voltage and current signals of real-time detection transmission line of electricity, and will test signal
It is sent to controller；
Controller calculates for voltage, the current signal according to acquisition and output harmonic wave current compensation controls signal；
Converter module controls signal for the harmonic current compensation according to transmitted by controller, required for corresponding generation
Harmonic compensation current；
Grid-connected inductance, the harmonic compensation current for exporting converter module access transmission line of electricity.
Further embodiment is: above-mentioned controller is the double -loop control structure that PI controls that inner ring adds repetitive controller outer ring
Controller.
Further embodiment is: above-mentioned converter module includes IGBT drive circuit module and Drive Protecting Circuit.
The present invention has the effect of positive: the harmonic current compensation control device of the invention based on Repetitive controller, leads to
The current loop controller for adding the double -loop control structure of Repetitive controller outer ring using PI control inner ring is crossed, makes it when in use, it can
Realize that zero static difference tracks harmonic wave, compensation precision is high, rapid dynamic response speed, good operating stability；In addition, the device of the invention knot
Structure is simple, cost is not high, and access charging pile distribution system is convenient when use, easy to spread.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention, electricity when also showing its use in figure with the power distribution network containing charging pile
Connection relationship；
Fig. 2 is a kind of structural schematic block diagram of controller in Fig. 1.
Specific embodiment
The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
(embodiment 1)
See Fig. 1 and Fig. 2, the harmonic current compensation control device based on Repetitive controller of the present embodiment, mainly by mutual induction of voltage
Device, current transformer, controller, converter module and grid-connected inductance composition.
Voltage transformer and current transformer are used for the voltage and current signals of real-time detection transmission line of electricity, and will test letter
Number it is sent to controller；Voltage transformer and current transformer using when isolating transformer be set and fill the transmission of electricity between line stake
On route.
Controller calculates for voltage, the current signal according to acquisition and output harmonic wave current compensation controls signal, control
Device is electrically connected with voltage transformer and current transformer.In the present embodiment, controller adds repetitive controller using PI control inner ring
The double -loop control structure of outer ring can carry out rapid dynamically track and be compensated to the current harmonics of the variation in power grid,
This harmonic current compensation device based on Repetitive controller is directed to the demand without load, provides corresponding dynamic current compensation
Amount, dynamic response is fast, improves the flexibility and stability of total system, and add Repetitive controller outer ring using PI control inner ring
Double -loop control structure, PI control control object of the inner ring as Repetitive controller outer ring, provide a stabilization for Repetitive controller outer ring
Controlled device, Repetitive controller outer ring then to PI control inner ring tracking error repair, improve closed-loop system control essence
Degree may be implemented zero static difference tracking harmonic wave, improve device compensation precision.Repetitive controller handles the parameter of acquisition, real
Now to the real time dynamic tracing of power distribution network and current harmonics compensation calculation.
Converter module includes IGBT drive circuit module and Drive Protecting Circuit, and converter module is used for according to control
Harmonic current compensation transmitted by device processed controls signal, corresponding to generate required harmonic compensation current；Converter module with
Controller electrical connection.
The transmission line of electricity for the harmonic compensation current access power distribution network that grid-connected inductance is used to export converter module；It is grid-connected
One end of inductance is electrically connected with converter module；In use, the other end of grid-connected inductance is electrically connected with transmission line of electricity.
Above embodiments are the explanations to a specific embodiment of the invention, rather than limitation of the present invention, related technology
The technical staff in field without departing from the spirit and scope of the present invention, can also make various transformation and variation and obtain
To corresponding equivalent technical solution, therefore all equivalent technical solutions should be included into patent protection model of the invention
It encloses.
Claims (3)
1. a kind of harmonic current compensation control device based on Repetitive controller, it is characterised in that: mutual including voltage transformer, electric current
Sensor, controller, converter module and grid-connected inductance；
Voltage transformer and current transformer are electrically connected with the controller；Converter module is electrically connected with the controller；Grid-connected electricity
One end of sense is electrically connected with converter module；In use, the other end of grid-connected inductance is electrically connected with transmission line of electricity；Mutual induction of voltage
Device and current transformer setting are on the transmission line；Wherein:
Voltage transformer and current transformer for the voltage and current signals of real-time detection transmission line of electricity, and will test signal
It is sent to controller；
Controller calculates for voltage, the current signal according to acquisition and output harmonic wave current compensation controls signal；
Converter module controls signal for the harmonic current compensation according to transmitted by controller, required for corresponding generation
Harmonic compensation current；
Grid-connected inductance, the harmonic compensation current for exporting converter module access transmission line of electricity.
2. the harmonic current compensation control device according to claim 1 based on Repetitive controller, it is characterised in that: described
Controller is the controller that PI controls that inner ring adds the double -loop control structure of repetitive controller outer ring.
3. the harmonic current compensation control device according to claim 1 based on Repetitive controller, it is characterised in that: described
Converter module includes IGBT drive circuit module and Drive Protecting Circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710627923.3A CN109309383A (en) | 2017-07-28 | 2017-07-28 | Harmonic current compensation control device based on Repetitive controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710627923.3A CN109309383A (en) | 2017-07-28 | 2017-07-28 | Harmonic current compensation control device based on Repetitive controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109309383A true CN109309383A (en) | 2019-02-05 |
Family
ID=65202836
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710627923.3A Pending CN109309383A (en) | 2017-07-28 | 2017-07-28 | Harmonic current compensation control device based on Repetitive controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109309383A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1829036A (en) * | 2006-03-02 | 2006-09-06 | 华中科技大学 | Method and apparatus for carrying out combining-net using voltage control type inverter |
| CN102570476A (en) * | 2011-12-31 | 2012-07-11 | 浙江大学 | Repetitive-control-based method for controlling compensation current of DSTATCOM (Distribution Static Synchronous Compensator) |
| KR101460442B1 (en) * | 2013-05-29 | 2014-11-12 | 울산대학교 산학협력단 | Harmonic Voltage Compensator with Repetitive Controller |
| CN104979830A (en) * | 2015-07-03 | 2015-10-14 | 佛山市顺德区胜业电气有限公司 | Active filter control method based on fuzzy PI and repetitive control |
| KR101562848B1 (en) * | 2015-05-21 | 2015-10-27 | 주식회사 이온 | Method for uninterruptible power supply system control by using active damping control scheme and repeat control techniques |
| CN106505840A (en) * | 2016-11-30 | 2017-03-15 | 云南电网有限责任公司 | A kind of grid-connected photovoltaic inverter harmonic wave management method |
-
2017
- 2017-07-28 CN CN201710627923.3A patent/CN109309383A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1829036A (en) * | 2006-03-02 | 2006-09-06 | 华中科技大学 | Method and apparatus for carrying out combining-net using voltage control type inverter |
| CN102570476A (en) * | 2011-12-31 | 2012-07-11 | 浙江大学 | Repetitive-control-based method for controlling compensation current of DSTATCOM (Distribution Static Synchronous Compensator) |
| KR101460442B1 (en) * | 2013-05-29 | 2014-11-12 | 울산대학교 산학협력단 | Harmonic Voltage Compensator with Repetitive Controller |
| KR101562848B1 (en) * | 2015-05-21 | 2015-10-27 | 주식회사 이온 | Method for uninterruptible power supply system control by using active damping control scheme and repeat control techniques |
| CN104979830A (en) * | 2015-07-03 | 2015-10-14 | 佛山市顺德区胜业电气有限公司 | Active filter control method based on fuzzy PI and repetitive control |
| CN106505840A (en) * | 2016-11-30 | 2017-03-15 | 云南电网有限责任公司 | A kind of grid-connected photovoltaic inverter harmonic wave management method |
Non-Patent Citations (1)
| Title |
|---|
| 杨昆;陈国柱;: "基于重复控制的DSTATCOM补偿电流控制", 电力***自动化, no. 10, pages 80 - 85 * |
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