CN201075695Y - Harmonic filtering circuit with PI and repeat operation - Google Patents
Harmonic filtering circuit with PI and repeat operation Download PDFInfo
- Publication number
- CN201075695Y CN201075695Y CNU2007200739184U CN200720073918U CN201075695Y CN 201075695 Y CN201075695 Y CN 201075695Y CN U2007200739184 U CNU2007200739184 U CN U2007200739184U CN 200720073918 U CN200720073918 U CN 200720073918U CN 201075695 Y CN201075695 Y CN 201075695Y
- Authority
- CN
- China
- Prior art keywords
- harmonic
- controller
- link
- repetitive controller
- circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Classifications
-
- 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
- Y02E40/20—Active power filtering [APF]
Landscapes
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The utility model provides a harmonic filtering circuit which adopts PI and repetitive control and is characterized in that: a repetitive controller (1) is added in the harmonic filtering circuit, and the repetitive controller (1) and a PI controller (2) are connected in parallel with the harmonic abstraction and control circuit; the repetitive controller (1) includes lowpass link (1-3), a delay link (1-2), a compensation link (1-1) and a component (1-4); the lowpass link (1-3) is connected in parallel with the component (1-4) and is then connected in series with the delay link (1-2) and the compensation link (1-1) sequentially to form the repetitive controller (1). The utility model overcomes the defect that the harmonic abstraction circuit with the pure PI controller is difficult to regulate a pure analog hardware and is easy to be affected by the parameters of analog devices, and the device parameters are easy to change with the time and ambient temperature, which leads the active filtering device to deviate from the normal working performance, thus causing poor status precision of the equipment; the utility model guarantees the stable state precision of the active electric power filtering device and at the same time improves the dynamic properties.
Description
Technical field
The utility model relates to the control technology of Active Power Filter-APF, particularly a kind of PI of employing and the harmonic filtering circuit that repeats to control; Belong to the active power filtering technical field.
Background technology
Active Power Filter-APF has been widely used in the harmonic wave control of electrical network, and no matter existing HARMONIC SIGNAL EXTRACTION FROM adopts pure analog hardware with control or adopt digital controlly, all adopts pure PI control.But, because pure analog hardware not only regulates difficulty, being subject to the analogue device parameter influence, device parameters also exists in time simultaneously, ambient temperature easily changes, thereby departs from normal service behaviour when causing the active filter operation; Thereby also can when adopting digital control technology, cause the stable state accuracy of equipment relatively poor.
The utility model content
The present utility model purpose: be intended to propose to overcome above-mentioned deficiency and a kind of PI of employing is provided the extracting harmonic technology of control, when guaranteeing the active electric filter device stable state accuracy, improve its dynamic property.
This employing PI and the harmonic filtering circuit that repeats to control is characterized in that: set up a repetitive controller 1 in harmonic filtering circuit, and this repetitive controller 1 is connected in parallel in extracting harmonic and the control circuit with PI controller 2.
Described repetitive controller 1 comprises that low pass link 1-3, time delay process 1-2 and compensation tache 1-1 and element 1-4 form; Described low pass link 1-3 is connected in parallel on the element 1-4, and is composed in series repetitive controller 1 with time delay process 1-2, compensation tache 1-1 successively again.
According to this employing PI of above technical scheme proposition and the harmonic filtering circuit that repeats to control, the pure analog hardware that has overcome the harmonic filtering circuit existence of adopting pure PI control is regulated difficulty, be subject to the analogue device parameter influence, simultaneously device parameters in time, ambient temperature easily changes, thereby depart from normal service behaviour when causing the active filter operation, and when adopting digital control technology, thereby the relatively poor state of the art of the stable state accuracy that causes equipment, realized when guaranteeing the active electric filter device stable state accuracy, having improved dynamic property.The realization of the harmonic wave control under three-way three-phase, the three-way four phase load working conditions and the raising of control performance are all played an important role.
Description of drawings
Accompanying drawing is this practical structural representation
Among the figure: 1-repetitive controller 1-1 compensation tache 1-2 time delay process 1-3 low pass link 1-4 element 2-PI controller
Embodiment
This employing PI as shown in the figure and the harmonic filtering circuit that repeats to control, it is to the extracting harmonic of existing pure employing PI control and a kind of improvement of control circuit.Its concrete technical scheme is as follows:
In extracting harmonic and control circuit, set up a repetitive controller 1, and this repetitive controller 1 is connected in parallel in extracting harmonic and the control circuit with PI controller 2.
Described repetitive controller 1 comprises that low pass link 1-3, time delay process 1-2 and compensation tache 1-1 and element 1-4 form; Described low pass link 1-3 is connected in parallel on the element 1-4, and is composed in series repetitive controller 1 with time delay process 1-2, compensation tache 1-1 successively again.
Claims (2)
1. a harmonic filtering circuit that adopts PI and repeat to control is characterized in that: set up a repetitive controller (1) in harmonic filtering circuit, and this repetitive controller (1) and PI controller (2) are connected in parallel in extracting harmonic and the control circuit.
2. a kind of PI of employing as claimed in claim 1 and the extracting harmonic circuit that repeats to control is characterized in that: described repetitive controller (1) comprises low pass link (1-3), time delay process (1-2) and compensation tache (1-1) and element (1-4) composition; Described low pass link (1-3) is connected in parallel on the element (1-4), and successively and time delay process (1-2), compensation tache (1-1) be composed in series repetitive controller (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200739184U CN201075695Y (en) | 2007-08-21 | 2007-08-21 | Harmonic filtering circuit with PI and repeat operation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200739184U CN201075695Y (en) | 2007-08-21 | 2007-08-21 | Harmonic filtering circuit with PI and repeat operation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201075695Y true CN201075695Y (en) | 2008-06-18 |
Family
ID=39520952
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200739184U Expired - Fee Related CN201075695Y (en) | 2007-08-21 | 2007-08-21 | Harmonic filtering circuit with PI and repeat operation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201075695Y (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101887238A (en) * | 2010-06-25 | 2010-11-17 | 东南大学 | Specific repetitive controller and control method |
| CN101937193A (en) * | 2010-07-30 | 2011-01-05 | 东南大学 | Multi-inner module parallel-connection type repeat controller and control method |
| CN102158201A (en) * | 2010-12-15 | 2011-08-17 | 广东雅达电子股份有限公司 | Control system for controlling individual harmonic current of filter |
| CN102176639A (en) * | 2011-03-21 | 2011-09-07 | 东南大学 | Appoint-class harmonic repetitive controller and control method |
| CN102176115B (en) * | 2011-01-25 | 2012-11-28 | 东南大学 | Specific-class harmonic repetitive controller and control method |
| CN104135003A (en) * | 2014-08-04 | 2014-11-05 | 国家电网公司 | APF control method based on active disturbance rejection and repetitive control |
| CN104135021A (en) * | 2014-07-25 | 2014-11-05 | 国家电网公司 | Voltage optimization control method of off-grid energy storage converter based on compound control |
| CN105122628A (en) * | 2013-04-15 | 2015-12-02 | 大金工业株式会社 | Control device |
| CN105610311A (en) * | 2016-01-21 | 2016-05-25 | 北京京仪绿能电力系统工程有限公司 | Method and device for harmonic suppression of photovoltaic inverter |
| CN105743109A (en) * | 2016-04-19 | 2016-07-06 | 大连理工大学 | Phase-locked loop applicable to power grid voltage unbalance and distortion states |
| CN106655182A (en) * | 2016-08-09 | 2017-05-10 | 杭州得诚电力科技股份有限公司 | Composite-control active filter based on high-compensated precision current loop and control method thereof |
| CN107546967A (en) * | 2017-09-27 | 2018-01-05 | 成都麦隆电气有限公司 | A kind of APF output current control methods based on multistage filtering repetitive controller |
| CN109861563A (en) * | 2019-03-19 | 2019-06-07 | 南京工程学院 | PWM rectifier control method based on bearing power feedforward and Repetitive controller |
-
2007
- 2007-08-21 CN CNU2007200739184U patent/CN201075695Y/en not_active Expired - Fee Related
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101887238B (en) * | 2010-06-25 | 2012-01-04 | 东南大学 | Specific repetitive controller and control method |
| CN101887238A (en) * | 2010-06-25 | 2010-11-17 | 东南大学 | Specific repetitive controller and control method |
| CN101937193A (en) * | 2010-07-30 | 2011-01-05 | 东南大学 | Multi-inner module parallel-connection type repeat controller and control method |
| CN102158201A (en) * | 2010-12-15 | 2011-08-17 | 广东雅达电子股份有限公司 | Control system for controlling individual harmonic current of filter |
| CN102176115B (en) * | 2011-01-25 | 2012-11-28 | 东南大学 | Specific-class harmonic repetitive controller and control method |
| CN102176639A (en) * | 2011-03-21 | 2011-09-07 | 东南大学 | Appoint-class harmonic repetitive controller and control method |
| CN102176639B (en) * | 2011-03-21 | 2013-07-03 | 东南大学 | Appoint-class harmonic repetitive controller and control method |
| CN105122628A (en) * | 2013-04-15 | 2015-12-02 | 大金工业株式会社 | Control device |
| CN105122628B (en) * | 2013-04-15 | 2017-08-29 | 大金工业株式会社 | Control device |
| CN104135021A (en) * | 2014-07-25 | 2014-11-05 | 国家电网公司 | Voltage optimization control method of off-grid energy storage converter based on compound control |
| CN104135003A (en) * | 2014-08-04 | 2014-11-05 | 国家电网公司 | APF control method based on active disturbance rejection and repetitive control |
| CN105610311A (en) * | 2016-01-21 | 2016-05-25 | 北京京仪绿能电力系统工程有限公司 | Method and device for harmonic suppression of photovoltaic inverter |
| CN105743109A (en) * | 2016-04-19 | 2016-07-06 | 大连理工大学 | Phase-locked loop applicable to power grid voltage unbalance and distortion states |
| CN106655182A (en) * | 2016-08-09 | 2017-05-10 | 杭州得诚电力科技股份有限公司 | Composite-control active filter based on high-compensated precision current loop and control method thereof |
| CN107546967A (en) * | 2017-09-27 | 2018-01-05 | 成都麦隆电气有限公司 | A kind of APF output current control methods based on multistage filtering repetitive controller |
| CN109861563A (en) * | 2019-03-19 | 2019-06-07 | 南京工程学院 | PWM rectifier control method based on bearing power feedforward and Repetitive controller |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201075695Y (en) | Harmonic filtering circuit with PI and repeat operation | |
| EP2642626A3 (en) | Apparatus and method for operating a wind turbine under low utility grid voltage conditions | |
| CN104660233A (en) | Multiplex digital electronic branch switch | |
| CN103487768A (en) | System and method for lamp batch aging and detection | |
| CN202351387U (en) | Photovoltaic cell array simulation system | |
| CN201408247Y (en) | Test circuit for chip of solar cell | |
| CN205720475U (en) | A kind of automatization terminal DTU tests device | |
| CN108471231A (en) | A kind of absorption plant for absorbing inverse electromotive force | |
| CN2802814Y (en) | Intelligent mixing switch element non-consumption dynamic compensation device | |
| CN203275502U (en) | Signal acquisition module of remote monitoring system of distribution transformer | |
| CN203965986U (en) | A kind of numerical control adjustable D. C regulated | |
| CN203457042U (en) | Switching power supply of pulse switching machine | |
| CN203225728U (en) | Time relay based on integrated circuit | |
| CN101729025A (en) | Sectioned linear transformation method | |
| CN202034758U (en) | Intelligence electric leakage controller with voltage measurement and protection functions | |
| CN204578055U (en) | A kind of straight open loop circuit | |
| CN202649418U (en) | Dynamic monitoring station for alternating-current contactors | |
| CN202856367U (en) | Lossless capacitor set synchronous switching apparatus | |
| CN205826758U (en) | A kind of monitoring device of transformer | |
| CN204304448U (en) | A kind of high-voltage reactive dynamic compensation controller | |
| CN201893563U (en) | Reactive compensation device of electric motor | |
| CN202600414U (en) | Application of single chip microcomputer on voltage stabilizer | |
| CN204441958U (en) | A kind of wireless type Battery Discharging Device | |
| CN201912873U (en) | Electronic temperature controller of air dryer of railway locomotive | |
| CN205091381U (en) | Be applied to straight traffic collection buffer circuit of distribution network automation terminal product |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080618 Termination date: 20160821 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |