CN203243050U - Voltage-regulating type voltage reactive compensation device - Google Patents
Voltage-regulating type voltage reactive compensation device Download PDFInfo
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- CN203243050U CN203243050U CN2013201687572U CN201320168757U CN203243050U CN 203243050 U CN203243050 U CN 203243050U CN 2013201687572 U CN2013201687572 U CN 2013201687572U CN 201320168757 U CN201320168757 U CN 201320168757U CN 203243050 U CN203243050 U CN 203243050U
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- voltage regulation
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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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Abstract
The utility model relates to a voltage-regulating type voltage reactive compensation device, wherein the primary side of an on-load voltage regulation self-coupling transformer is connected with the output end of a capacitor switch cabinet, the secondary side of the on-load voltage regulation self-coupling transformer is connected with the input end of an on-load tap-changer, the primary output end of the on-load tap-changer is connected with the input end of a first reactor and the input end of a second vacuum switch respectively, and the input end of a first capacitor is connected with the output end of the first reactor; the input end of a second reactor is connected with the output end of the second vacuum switch, and the input end of a second capacitor is connected with the output end of the second reactor; and the gear position measurement and motor drive of the on-load tap-changer is connected with the output end of an on-load voltage-regulating controller, and the output end of the gear position and motor drive of a microcomputer controller is connected with the input end of the on-load voltage-regulating controller. The voltage-regulating type voltage reactive compensation device disclosed by the utility model is simple in structure, low in cost, and good in reliability.
Description
(1), technical field: the utility model relates to a kind of high-pressure reactive compensation device, particularly a kind of pressure-adjusting type voltage and reactive power compensation device.
(2), background technology: at present, domestic reactive power compensator adopts fixed capacitor to compensate mostly, and its shortcoming is automatically to regulate, and can often occur mending in running and owe mending.In power grid construction, producer's research is also arranged by the control vacuum switch, change the compensation arrangement that condenser capacity is means, be VQC, these compensation arrangements need to have certain time-delay because the needs that exist in the capacitor switching process discharge and recharge, can't realize timely compensation at all, and grouping is difficult for too many, thereby can not realize timely adjustment, exerts oneself thereby also have producer to change the idle of capacitor by change capacitor terminal voltage.Although have greatly improved than VQC, light time period of load also can to system to send idle or equipment out of service, can't make equally operation of power networks in optimum state, effectively reduce the wastage, the energy savings purpose.
(3), utility model content:
The technical problems to be solved in the utility model is: for the incomplete place of prior art problem, provide the pressure-adjusting type voltage and reactive power compensation device of a kind of reactive power compensation precision height, fast response time.
The technical solution of the utility model:
A kind of pressure-adjusting type voltage and reactive power compensation device, contain microcomputerized controller, on-load voltage regulation single-circuit transformer and signal gathering unit, contain the threephase potential transformer and the threephase current transformer that are located at the inlet wire side in the signal gathering unit, on the primary side of the threephase potential transformer inlet wire side bus in parallel, the threephase current transformer primary side is connected respectively on A, B, the C bus, and threephase potential transformer is connected the secondary output and is connected with the analog input end of microcomputerized controller with threephase current transformer; Capacitor outgoing line cabinet input is connected on the low-pressure side bus transmission line, on-load voltage regulation single-circuit transformer input is connected with the capacitor leading-out terminal, on-load voltage regulation single-circuit transformer output is connected with the first reactor input, the second vacuum switch input respectively, and the input of the first capacitor is connected with the output of the first reactance.The input of the second reactor is connected with the second vacuum switch output, and the input of the second capacitor is connected with the output of the second reactor.The Regulation Control input of on-load voltage regulation controller is connected with the on-load voltage regulation control output end of microcomputerized controller, the on load tap changer control input end is connected with the output of on-load voltage regulation controller, and the vacuum switch of microcomputerized controller drives signal output part and is connected with the control coil input of vacuum switch.The gear motor-driven input of main transformer on-load voltage regulation controller is connected with the main transformer on-load voltage regulation control output end of microcomputerized controller, and the gear motor-driven output of main transformer on-load voltage regulation controller is connected with the control input end of main transformer on-load tap-changer.
The former limit of on-load voltage regulation single-circuit transformer is connected with the output of capacitor switch cabinet, and the secondary of on-load voltage regulation single-circuit transformer is connected with the input of on load tap changer, and output of loaded tap-off is connected with the first reactor.The gear of on load tap changer is measured motor-driven and is connected with the on-load voltage regulation controller output end, and the motor-driven output of the gear of microcomputerized controller is connected with the input of on-load voltage regulation controller.
Contain microprocessor (dsp processor) in the microcomputerized controller.
The beneficial effects of the utility model:
1. the utility model is according to VQC docking technique and the Q=FCU of maturation
2Control principle, the mode that adopts the on-load voltage regulation single-circuit transformer to combine with VQC is carried out reactive power compensation and main transformer voltage-regulation, change the outlet voltage of whole transformer station by regulating the main transformer output voltage, change the first capacitor output capacity with the terminal voltage of on-load voltage regulation single-circuit transformer regulating capacitor.Be used in the operational environment of little load, be equivalent to that the first capacitor has been divided into multiple combined capacity and carry out real-Time Compensation, realize that reactive loss minimizes.Central large load is to realize the second capacitor group and the first capacitor sets in parallel operation by vacuum switch, realize large load real-Time Compensation effect, not only reactive power compensation precision is high, also solved simultaneously problem discharge time of capacitor in the existing VQC switching process, made the response speed of reactive power compensation faster.
2. the utility model low-voltage is closed a floodgate, and has greatly reduced inrush phenomenon, effectively reduces the impact to system and capacitor; Do not produce harmonic wave, can not cause harmonic pollution to transmission system.
3. the utlity model has perfect defencive function, digital communication and remote maintenance functions, can satisfy unattended and non-maintaining demand.
4. the utility model adopts voltage to consider the operation of power networks situation with the idle mode of combining, and adjusts.Because capacitor puts into operation in low-voltage and has strengthened the useful life of capacitor, capacitor does not break away from all the time electrical network and does not exist the charge and discharge process corresponding speed fast in idle adjustment process, and capacitor operates in it below rated voltage forever, guarantee the safe handling of capacitor, prolonged the useful life of capacitor.
(4), description of drawings:
Fig. 1 is the schematic block circuit diagram of pressure-adjusting type voltage and reactive power compensation device.
(5), embodiment:
Referring to Fig. 1, among the figure, pressure-adjusting type voltage and reactive power compensation device, contain microcomputerized controller, on-load voltage regulation single-circuit transformer and signal gathering unit 1, contain the threephase potential transformer and the threephase current transformer that are located at the inlet wire side in the signal gathering unit, on the primary side of the threephase potential transformer inlet wire side bus in parallel, the threephase current transformer primary side is connected respectively on A, B, the C bus, and threephase potential transformer is connected the secondary output and is connected with the analog input end of microcomputerized controller with threephase current transformer; Capacitor outgoing line cabinet input is connected on the low-pressure side bus transmission line, on-load voltage regulation single-circuit transformer input is connected with the capacitor leading-out terminal, on-load voltage regulation single-circuit transformer output is connected with the first reactor input, the second vacuum switch input respectively, and the input of the first capacitor is connected with the output of the first reactance.The input of the second reactor is connected with the second vacuum switch output, and the input of the second capacitor is connected with the output of the second reactor.The Regulation Control input of on-load voltage regulation controller is connected with the on-load voltage regulation control output end of microcomputerized controller, the on load tap changer control input end is connected with the output of on-load voltage regulation controller, and the vacuum switch of microcomputerized controller drives signal output part and is connected with the control coil input of vacuum switch.The gear motor-driven input of main transformer on-load voltage regulation controller is connected with the main transformer on-load voltage regulation control output end of microcomputerized controller, and the gear motor-driven output of main transformer on-load voltage regulation controller is connected with the control input end of main transformer on-load tap-changer.
The former limit of on-load voltage regulation single-circuit transformer is connected with the output of capacitor switch cabinet, and the secondary of on-load voltage regulation single-circuit transformer is connected with the input of on load tap changer, and an output of on load tap changer is connected with the first reactor.The gear of on load tap changer is measured motor-driven and is connected with the on-load voltage regulation controller output end, and the motor-driven output of the gear of microcomputerized controller is connected with the input of on-load voltage regulation controller.
Contain microprocessor (dsp processor) in the microcomputerized controller.
The model of voltage regulator controllers is: HMK7 on-load tap changers of transformers controller, manufacturer is: Huaming Power Equipment Manufacturing Co., Ltd., Shanghai.
Claims (3)
1. pressure-adjusting type voltage and reactive power compensation device, contain microcomputerized controller, on-load voltage regulation single-circuit transformer and signal gathering unit, contain the threephase potential transformer and the threephase current transformer that are located at the inlet wire side in the signal gathering unit, on the primary side of the threephase potential transformer inlet wire side bus in parallel, the threephase current transformer primary side is connected respectively on A, B, the C bus, and threephase potential transformer is connected the secondary output and is connected with the analog input end of microcomputerized controller with threephase current transformer; Capacitor outgoing line cabinet input is connected on the low-pressure side bus transmission line, on-load voltage regulation single-circuit transformer input is connected with the capacitor leading-out terminal, on-load voltage regulation single-circuit transformer output is connected with the first reactor input, the second vacuum switch input respectively, and the input of the first capacitor is connected with the output of the first reactance; The input of the second reactor is connected with the second vacuum switch output, and the input of the second capacitor is connected with the output of the second reactor; The Regulation Control input of on-load voltage regulation controller is connected with the on-load voltage regulation control output end of microcomputerized controller, the on load tap changer control input end is connected with the output of on-load voltage regulation controller, and the vacuum switch of microcomputerized controller drives signal output part and is connected with the control coil input of vacuum switch; The gear motor-driven input of main transformer on-load voltage regulation controller is connected with the main transformer on-load voltage regulation control output end of microcomputerized controller, and the gear motor-driven output of main transformer on-load voltage regulation controller is connected with the control input end of main transformer on-load tap-changer.
2. pressure-adjusting type voltage and reactive power compensation device according to claim 1, it is characterized in that: described on-load voltage regulation single-circuit transformer, the former limit of on-load voltage regulation single-circuit transformer is connected with the output of capacitor switch cabinet, the secondary of on-load voltage regulation single-circuit transformer is connected with the input of on load tap changer, and output of loaded tap-off is connected with the first reactor; The gear of on load tap changer is measured motor-driven and is connected with the on-load voltage regulation controller output end, and the motor-driven output of the gear of microcomputerized controller is connected with the input of on-load voltage regulation controller.
3. pressure-adjusting type voltage and reactive power compensation device according to claim 1, it is characterized in that: described microcomputerized controller can realize controlling main transformer on-load voltage regulation controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201687572U CN203243050U (en) | 2013-04-07 | 2013-04-07 | Voltage-regulating type voltage reactive compensation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201687572U CN203243050U (en) | 2013-04-07 | 2013-04-07 | Voltage-regulating type voltage reactive compensation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203243050U true CN203243050U (en) | 2013-10-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013201687572U Expired - Fee Related CN203243050U (en) | 2013-04-07 | 2013-04-07 | Voltage-regulating type voltage reactive compensation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203243050U (en) |
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2013
- 2013-04-07 CN CN2013201687572U patent/CN203243050U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20131016 Termination date: 20140407 |