CN204928128U - A control system for active power filter on post - Google Patents
A control system for active power filter on post Download PDFInfo
- Publication number
- CN204928128U CN204928128U CN201520533490.1U CN201520533490U CN204928128U CN 204928128 U CN204928128 U CN 204928128U CN 201520533490 U CN201520533490 U CN 201520533490U CN 204928128 U CN204928128 U CN 204928128U
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- China
- Prior art keywords
- control unit
- control system
- unit
- active power
- power filter
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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
- Y02E40/20—Active power filtering [APF]
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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
- Y02E40/50—Arrangements for eliminating or reducing asymmetry in polyphase networks
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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
- Y02E40/70—Smart grids as climate change mitigation technology in the energy generation sector
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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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/22—Flexible AC transmission systems [FACTS] or power factor or reactive power compensating or correcting units
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- Supply And Distribution Of Alternating Current (AREA)
Abstract
The utility model relates to a control system for active power filter on post, this ystem installation between power supply system and load, control system include signal acquisition element, the control unit, harmonic compensation unit, reactive compensation unit, unbalanced three phase the control unit and controllable voltage source, the control unit be connected with signal acquisition element, harmonic compensation unit, reactive compensation unit, unbalanced three phase the control unit and controllable voltage source respectively, signal acquisition element be connected with power supply system and load respectively. Compared with the prior art, the utility model has the advantages of electric energy quality, convenient operation is greatly improved.
Description
Technical field
The utility model relates to a kind of active power filter, especially relates to a kind of control system of active power filter on post.
Background technology
The quality of power supply is directly connected to the overall benefit of national economy.Improve the quality of power supply for the safety of electrical network and electric equipment, economical operation, the normal operation of products quality guarantee and people's productive life etc. are all significant.Adopt efficient electrical power load equipment can save mass energy, delay need for electricity contradiction, thus save the great amount of investment needed for power construction.Therefore improve power supply quality, meet the hope that the demand of production development become in many ways common.Consider from the angle of the quality of power supply, further investigation harmonic reactive compensating apparatus, makes it meet actual needs as early as possible in China, becomes the task of top priority.
Traditional active filter adopts direct mounting means, it exists that floor space is large, weak heat-dissipating, easily by problems such as outside destroy, simultaneously to be commonly mode of operation single for existing filter, and singlely can only carry out Harmonics elimination function, therefore it is of limited application.
Utility model content
The purpose of this utility model is exactly provide a kind of control system substantially improving the quality of power supply, easy to operate active power filter on post to overcome defect that above-mentioned prior art exists.
The purpose of this utility model can be achieved through the following technical solutions:
A kind of control system of active power filter on post, this system is arranged between electric power system and load, it is characterized in that, described control system comprises signal gathering unit, control unit, harmonic compensation unit, reactive compensation unit, three-phase imbalance control unit and controllable voltage source, described control unit is connected with signal gathering unit, harmonic compensation unit, reactive compensation unit, three-phase imbalance control unit and controllable voltage source respectively, and described signal gathering unit is connected with electric power system and load respectively.
Described signal gathering unit comprises current transformer, voltage transformer and HARMONIC SIGNAL EXTRACTION FROM device, described current transformer and voltage transformer are connected on the power supply buses between electric power system and load respectively, described HARMONIC SIGNAL EXTRACTION FROM device is connected with current transformer, and described HARMONIC SIGNAL EXTRACTION FROM device is connected with control unit respectively with voltage transformer.
Described control unit is microprocessor or PLC.
Also comprise the wireless communication module and man-machine interface that are connected with control unit, described wireless communication module is connected with remote terminal by wireless network.
Described wireless communication module is short-distance wireless communication circuit or mobile communication card, and described short-distance wireless communication circuit is Bluetooth chip, wifi chip or ZigBee chip, and described mobile communication card is 2G, 3G or 4G communication card.
Described remote terminal is PC, panel computer or smart mobile phone.
Compared with prior art, the utility model has the following advantages:
1) quality of power supply is substantially improved, the utility model is based on the detection to system and load current and voltage, by the analysis to these data, the operation conditions that judgement system is current, device is according to corresponding operation conditions adjustment and switch its operational mode, to enable device play a role to greatest extent, improve the quality of power supply of system;
2) easy to operate, carry out two ore control by local man-machine interface and remote terminal, substantially increase operation ease.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in detail.
Embodiment
As shown in Figure 1, a kind of control system of active power filter on post, this system is arranged between electric power system and load, described control system comprises signal gathering unit 1, control unit 2, harmonic compensation unit 3, reactive compensation unit 4, three-phase imbalance control unit 5 and controllable voltage source 6, described control unit 2 is connected with signal gathering unit 1, harmonic compensation unit 3, reactive compensation unit 4, three-phase imbalance control unit 5 and controllable voltage source 6 respectively, and described signal gathering unit 1 is connected with electric power system and load respectively;
Described signal gathering unit 1 gathers the state information of electric power system and load, after control unit 2 is analyzed it, selects corresponding operational mode to compensate, makes it improve the quality of power supply to greatest extent.
Described signal gathering unit comprises current transformer, voltage transformer and HARMONIC SIGNAL EXTRACTION FROM device, described current transformer and voltage transformer are connected on the power supply buses between electric power system and load respectively, described HARMONIC SIGNAL EXTRACTION FROM device is connected with current transformer, and described HARMONIC SIGNAL EXTRACTION FROM device is connected with control unit respectively with voltage transformer.
When voltage in system is normal, when harmonic content is many, control unit controls harmonic compensation unit to system harmonic electric current, to offset the harmonic wave of load.When no-power vacancy appears in system, control unit controls reactive compensation unit and injects reactive power to system, to maintain the reactive balance of system.When system three-phase imbalance, control unit controls three-phase imbalance control unit between three-phase, exchanges meritorious energy, and three-phase imbalance is inhibited.When Voltage Drop and rapid fluctuations appear in system, control unit controls controllable voltage source work, maintains the voltage stabilization of access point.
Described control unit is microprocessor or PLC.The utility model also comprises the wireless communication module 7 and man-machine interface 8 that are connected with control unit 2, and described wireless communication module 7 is connected with remote terminal 9 by wireless network, in real time state information is issued remote terminal 9.
Described wireless communication module 7 is short-distance wireless communication circuit or mobile communication card, and described short-distance wireless communication circuit is Bluetooth chip, wifi chip or ZigBee chip, and described mobile communication card is 2G, 3G or 4G communication card.Described remote terminal 9 is PC, panel computer or smart mobile phone, this remote terminal by wireless network Real-time Obtaining state information simultaneously can sending controling instruction to control unit.
The utility model application of installation is in Standard type, floor space reduces greatly, solves the problems such as the anti-weather disaster in traditional outdoor compensation arrangement O&M, anti-outside destroy and heat radiation, can effectively economize the land resource, expand the development space of urban distribution network, improve power supply reliability.Pole compensation arrangement can be widely used in the ground such as business district, city, landscape region, residential quarter, and alleviate the pressure that city distribution transformer is built, easy for installation, flexible configuration is changeable.The control system of device described in the utility model, can select corresponding operational mode to compensate according to the situation of system and load.The switching of this several operational mode is based on the detection to system and load current and voltage, by the analysis to these data, the operation conditions that judgement system is current, device is according to corresponding operation conditions adjustment and switch its operational mode, to enable device play a role to greatest extent, improve the quality of power supply of system.
Claims (6)
1. the control system of an active power filter on post, this system is arranged between electric power system and load, it is characterized in that, described control system comprises signal gathering unit, control unit, harmonic compensation unit, reactive compensation unit, three-phase imbalance control unit and controllable voltage source, described control unit is connected with signal gathering unit, harmonic compensation unit, reactive compensation unit, three-phase imbalance control unit and controllable voltage source respectively, and described signal gathering unit is connected with electric power system and load respectively.
2. the control system of a kind of active power filter on post according to claim 1, it is characterized in that, described signal gathering unit comprises current transformer, voltage transformer and HARMONIC SIGNAL EXTRACTION FROM device, described current transformer and voltage transformer are connected on the power supply buses between electric power system and load respectively, described HARMONIC SIGNAL EXTRACTION FROM device is connected with current transformer, and described HARMONIC SIGNAL EXTRACTION FROM device is connected with control unit respectively with voltage transformer.
3. the control system of a kind of active power filter on post according to claim 1, is characterized in that, described control unit is microprocessor or PLC.
4. the control system of a kind of active power filter on post according to claim 1, it is characterized in that, also comprise the wireless communication module and man-machine interface that are connected with control unit, described wireless communication module is connected with remote terminal by wireless network.
5. the control system of a kind of active power filter on post according to claim 4, it is characterized in that, described wireless communication module is short-distance wireless communication circuit or mobile communication card, described short-distance wireless communication circuit is Bluetooth chip, wifi chip or ZigBee chip, and described mobile communication card is 2G, 3G or 4G communication card.
6. the control system of a kind of active power filter on post according to claim 4, is characterized in that, described remote terminal is PC, panel computer or smart mobile phone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520533490.1U CN204928128U (en) | 2015-07-22 | 2015-07-22 | A control system for active power filter on post |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520533490.1U CN204928128U (en) | 2015-07-22 | 2015-07-22 | A control system for active power filter on post |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204928128U true CN204928128U (en) | 2015-12-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520533490.1U Active CN204928128U (en) | 2015-07-22 | 2015-07-22 | A control system for active power filter on post |
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| CN (1) | CN204928128U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106229977A (en) * | 2016-09-14 | 2016-12-14 | 山东华天电气有限公司 | Circuit electric energy quality optimizing device based on WIFI communication, method and system |
-
2015
- 2015-07-22 CN CN201520533490.1U patent/CN204928128U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106229977A (en) * | 2016-09-14 | 2016-12-14 | 山东华天电气有限公司 | Circuit electric energy quality optimizing device based on WIFI communication, method and system |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |