CN103762605B - Intelligent high-voltage reactive power compensation device - Google Patents
Intelligent high-voltage reactive power compensation device Download PDFInfo
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- CN103762605B CN103762605B CN201410014130.0A CN201410014130A CN103762605B CN 103762605 B CN103762605 B CN 103762605B CN 201410014130 A CN201410014130 A CN 201410014130A CN 103762605 B CN103762605 B CN 103762605B
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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
An intelligent high-voltage reactive power compensation device comprises at least two loops of the same structure. Each loop comprises an intelligent contactor body, an intelligent contactor front end circuit and a high-voltage power capacitor set, wherein a wire inlet end of the intelligent contactor body is electrically connected with a power bus or connected with the power bus through a disconnecting link switch, a wire outlet end of the intelligent contactor body is electrically connected with a wire inlet end of the high-voltage power capacitor set or connected with the wire inlet end of the high-voltage power capacitor set through an electric reactor, and the intelligent contactor body is connected with the intelligent contactor front end circuit through a serial communication channel. The intelligent contactor front end circuits in the loops are connected through serial bus type communication channels and interchange information through a serial communication bus, an output bus of a high-voltage distribution voltage transformer is connected with each intelligent contactor front end circuit, and an output wire of the high-voltage distribution voltage transformer is connected with each intelligent contactor front end circuit in series. The intelligent high-voltage reactive power compensation device is high in reactive power compensation speed, high in accuracy, reliable in operation, simple in structure, easy to maintain and high in performance cost ratio.
Description
Technical field
The present invention relates to high-voltage fence reactive power compensation field, is a kind of intelligent high-voltage reactive power compensation device.
Background technology
Existing intelligent high-pressure reactive compensation device mainly exist can not frequently, quick-switching power capacitor, reliability is limited by the defect of reactive automatic compensation controllor reliability.The former causes, and imaginary power automatic compensation speed is slow, precision is low, and dynamic does not follow the tracks of the idle change of electrical network, makes the effect of reactive power compensation undesirable; The latter makes reactive automatic compensation controllor become the neck of reliability of reactive power automatic compensation device, once fault or make mistakes causes reactive power automatic compensation device entirety to be stopped transport or Wrong control, affects electrical network economy, safe operation.
Summary of the invention
Technical problem to be solved by this invention is, provides that a kind of reactive power compensation speed is fast, precision is high, reliable, structure simple, safeguards the intelligent high-voltage reactive power compensation device that simple and easy, cost performance is high.
For solving the problems of the technologies described above, the invention provides a kind of intelligent high-voltage reactive power compensation device, comprise the loop having at least 2 structures identical, in each loop, have intelligent contactor body 1 one, intelligent contactor fore-lying device 2 one, high-voltage power capacitor 3 one groups; Intelligent contactor body 1 end of incoming cables 33 is connected with power source bus 25 on electrically or through chopper switch, leading-out terminal 32 is connected with the inlet wire degree end of Capacitor banks 3 on electrically or through reactor, there is serial communication channels 14 to be connected between intelligent contactor body 1 with intelligent contactor fore-lying device 2, use serial communication mode to be connected therebetween and carry out information exchange; There is serial bus type communication port 22 to be connected in each loop between intelligent contactor fore-lying device 2, use serial communication bus 22 to carry out information exchange each other; Distribution voltage lead-in 24 connects with each intelligent contactor fore-lying device 2, and distribution current lead-ins 23 connects each intelligent contactor fore-lying device 2.
Have distribution voltage transducer 6, load current sensor 8, switching winding 61, closing coil 62, contactless contactor moving contact 4 and fixed contact 5, the moving contact stroke sensor 9 be connected with moving contact action bars, Body Controller 11 in intelligent contactor body 1, distribution voltage transducer 6, load current sensor 8, contactless contactor moving contact stroke sensor 9, switching winding 61, closing coil 62 are all connected with Body Controller 11.Contactless contactor moving contact 4 is connected to circuit 7 over the ground, after contactless contactor separating brake, power capacitor 3 passes through circuit 7 over the ground and discharges, and reduction power capacitor institute before combined floodgate is with voltage, improves combined floodgate performance.
Body Controller 11 is embedded with in intelligent contactor body 1, have divide-shut brake coil drive interface circuit 12 and microcontroller circuit 30 in Body Controller 11, divide-shut brake coil drive interface circuit 12 has control outlet device 26, divide-shut brake change-over circuit 10, filter circuit 59, divide-shut brake current detection circuit 28, isolated drive circuit 27, energy storage capacitor 29; Sub-gate circuit accesses power supply by divide-shut brake current detection circuit 28, control outlet device 26, filter circuit 59, divide-shut brake change-over circuit 10 first tie point, switching winding 61 after being connected; Closing circuit accesses power supply by divide-shut brake current detection circuit 28, control outlet device 26, filter circuit 59, divide-shut brake change-over circuit 10 second tie point, closing coil 62 after being connected.
Intelligent high-pressure contactor fore-lying device 2 has fore-lying device microcontroller circuit 18, and coupled has LCDs 16, operating parts 17, distribution voltage interface circuit 20, distribution current interface circuit 19, downlink communication interface circuit 15, parallel communication interface circuit 21.LCDs 16, operating parts 17 are for human-computer dialogue; Downlink communication interface circuit 15 is for communicating to Body Controller 11; Parallel communication interface circuit 21 is for communicating with construction system work with the fore-lying device 2 in other loops in intelligent high-pressure reactive compensation device; Distribution voltage interface circuit 20, distribution current interface circuit 19 respectively general ~ 100V distribution voltage, ~ 5A/1A distribution current conversion become fore-lying device microcontroller circuit 18 discernible signal.Electrical isolation device is all had in downlink communication interface circuit 15, parallel communication interface circuit 21, distribution voltage interface circuit 20, distribution current interface circuit 19, fore-lying device microcontroller circuit 18 is all isolated on electrically with downlink communication passage 14, parallel communication port 22, distribution current lead-ins 23, distribution voltage lead-in 24, improves the functional reliability of fore-lying device microcontroller circuit 18 greatly.
Communication interface circuit 13 is had in Body Controller 11, electrical isolation device is had in communication interface circuit 13, serial communication channels 14 is isolated on electrically with other circuit in Body Controller 11, and improve the Electro Magnetic Compatibility of Body Controller 11 with this, working stability is reliable; The human body sensing device 31 be connected with fore-lying device microcontroller circuit 18 is had in fore-lying device 2, when human body proximity, microcontroller circuit makes LCDs 16 luminescence display, delay-action when human body leaves, overcomes short the neck of reliability problem in liquid crystal display screen 16 useful life.
Accompanying drawing explanation
Fig. 1 is the overall structure figure of intelligent high-voltage reactive power compensation device of the present invention.
Fig. 2 is the structure chart of the divide-shut brake coil drive interface circuit of intelligent high-voltage reactive power compensation device of the present invention.
1, contactor body; 2, fore-lying device; 3, high-voltage power capacitor; 4, contactless contactor moving contact; 5, contactless contactor fixed contact; 6, distribution voltage transducer; 7, circuit over the ground; 8, load current sensor; 9, moving contact stroke sensor; 10, divide-shut brake change-over circuit; 11, Body Controller; 12, divide-shut brake coil drive interface circuit; 13, communication interface circuit; 14, serial communication channels; 15, downlink communication interface circuit; 16, LCDs; 17, operating parts; 18, fore-lying device microcontroller circuit; 19, distribution current interface circuit; 20, distribution voltage interface circuit; 21, parallel communication interface circuit; 22, serial bus type communication port; 23, distribution current lead-ins; 24, distribution voltage lead-in; 25, power source bus; 26, outlet device is controlled; 27, driving isolation circuit; 28, divide-shut brake current detection circuit; 29, energy storage capacitor; 30, microcontroller circuit; 31, human body sensing device; 32, leading-out terminal; 33, end of incoming cables; 59, filter circuit; 60, DC power supply anode; 61, switching winding; 62, closing coil; 63, DC power supply negative terminal.
Embodiment
For solving the problems of the technologies described above, the invention provides a kind of intelligent high-voltage reactive power compensation device, comprise the loop having at least 2 structures identical, in each loop, have intelligent contactor body 1 one, intelligent contactor fore-lying device 2 one, high-voltage power capacitor 3 one groups, intelligent contactor body 1 end of incoming cables 33 is connected with power source bus 25 on electrically or through chopper switch, leading-out terminal 32 is connected on electrically or through the end of incoming cables of reactor with Capacitor banks 3, there is serial communication channels 14 to be connected between intelligent contactor body 1 with intelligent contactor fore-lying device 2, use serial communication mode to be connected therebetween and carry out information exchange, there is serial bus type communication port 22 to be connected in each loop between intelligent contactor fore-lying device 2, use serial communication bus 22 to carry out information exchange each other, distribution voltage instrument transformer exports (~ 100V) bus 24 and connects with each intelligent contactor fore-lying device 2, and high voltage power distribution current lead-ins 23 connects each intelligent contactor fore-lying device 2, when intelligent high-pressure reactive compensation device works on power, each intelligent contactor fore-lying device 2 carries out information exchange through communication bus 22, determine wherein one for main frame, all the other are from machine, form an intelligent powerless compensation system works, main frame records distribution reactive power according to the distribution voltage lead-in 24 distribution current lead-ins 23 of input, power factor, then issue an order to certain intelligent contactor fore-lying device 2 according to reactive power and power factor, it is excised Capacitor banks 3 or the capacitor 3 that puts into operation that closes a floodgate with intelligent contactor body 1 separating brake be connected, thus distribution reactive power and power factor are compensated, all the other work are not affected if any automatically exiting from machine fault, hostdown exits automatically, from machine, produce a new main frame at all the other and form a new intelligent high-pressure reactive compensation system works, can solve in existing High Voltage and Passive Automatic Compensation Device and use reactive automatic compensation controllor to be the problem of its bottleneck.
Have distribution voltage transducer 6, load current sensor 8, switching winding 61, closing coil 62, contactless contactor moving contact 4 and fixed contact 5, the moving contact stroke sensor 9 be connected with moving contact action bars, Body Controller 11 in intelligent contactor body 1, distribution voltage transducer 6, load current sensor 8, contactless contactor moving contact stroke sensor 9, switching winding 61, closing coil 62 are all connected with Body Controller 11.After Body Controller 11 receives the 2-in-1 lock instruction of fore-lying device, the voltage-phase on contactless contactor is recorded according to distribution voltage transducer 6, speed and time, thus the closing time point of control contactor switch voltage AC wave shape zero crossing on switch of switch movable contact combined floodgate is recorded according to the stroke sensor 9 on switch movable contact; After Body Controller 11 receives the instruction of fore-lying device 2 separating brake, the current phase by contactless contactor is recorded according to load current sensor 8, record opening velocity and the time of switch movable contact according to switch movable contact stroke sensor 9, the opening time point of control contactor switch is passing through switching current AC wave shape zero passage thus; Realize " zero switching " power capacitor, do not have switching power capacitor to produce shove, arcing phenomenon, therefore can frequently, quick-switching power capacitor, improve the effect of reactive power compensation.Contactless contactor moving contact 4 is connected to circuit 7 over the ground, after contactless contactor separating brake, power capacitor 3 passes through circuit 7 over the ground and discharges, and reduction power capacitor institute before combined floodgate is with voltage, improves combined floodgate performance.
As shown in Figure 2, Body Controller 11 is embedded with in intelligent contactor body 1, have divide-shut brake coil drive interface circuit 12 and microcontroller circuit 30 in Body Controller 11, divide-shut brake coil drive interface circuit 12 has control outlet device 26, divide-shut brake change-over circuit 10, filter circuit 59, divide-shut brake current detection circuit 28, isolated drive circuit 27, energy storage capacitor 29; Sub-gate circuit accesses power supply by divide-shut brake current detection circuit 28, control outlet device 26, filter circuit 59, divide-shut brake change-over circuit 10 first tie point, switching winding 61 after being connected; Closing circuit accesses power supply by divide-shut brake current detection circuit 28, control outlet device 26, filter circuit 59, divide-shut brake change-over circuit 10 second tie point, closing coil 62 after being connected.
Control outlet device to use and can turn off electric capacitor device such as IGBT and manage, divide-shut brake current detection circuit 28 is for detecting separating brake or switching current size and delivering to microcontroller circuit 30; Have electrical isolation device in current detection circuit 28 and isolated drive circuit 27, microcontroller circuit 30 and control export device 26, energy storage capacitor 29 is isolated on electrically; Control outlet device 26, divide-shut brake current detection circuit 28, divide-shut brake change-over circuit 10 access DC power supply after being connected in series, storage capacitor 29 is had between the positive and negative end 60,63 of DC power supply, the rated voltage of storage capacitor 29 is not less than 300V, rated capacity is not less than 1000 μ F, and it is affected and make the power capacitor put into operation move back fortune that implement device carries out separating brake in interchange dead electricity situation; Isolated drive circuit 27 is serially connected between microprocessor 30 and the control pole controlling outlet device 26, for isolating microcontroller circuit 30 and controlling to export between device 26 electrical link and amplify controlling signal to of microcontroller circuit 30 and can export device 26 by drived control.When carrying out separating brake or shutting-brake control, microprocessor 30 sends separating brake or energization control signal, and make control export device 26 conducting through isolated drive circuit 27, therefore separating brake or closing coil are energized and make contactless contactor separating brake or combined floodgate; Microcontroller circuit 30 is fed back to after separating brake or switching current testing circuit 28 detect separating brake or switching current, this compares with set point by microcontroller circuit 30, then regulation output control signal size, separating brake or switching current is made to control in setting range, guarantee separating brake or closing time, velocity-stabilization, thus make divide-shut brake " zero switching " accurately, reliably.
Intelligent high-pressure contactor fore-lying device 2 has fore-lying device microcontroller circuit 18, and coupled has LCDs 16, operating parts 17, distribution voltage interface circuit 20, distribution current interface circuit 19, downlink communication interface circuit 15, parallel communication interface circuit 21.LCDs 16, operating parts 17 are for human-computer dialogue; Downlink communication interface circuit is used for communicating to Body Controller 11; Parallel communication interface circuit 21 is for communicating with construction system work with the fore-lying device 2 in other loops in intelligent high-pressure reactive compensation device; Distribution voltage interface circuit 20, distribution current interface circuit 19 respectively general ~ 100V distribution voltage, ~ 5A/1A distribution current conversion become fore-lying device microcontroller circuit 18 discernible signal.Electrical isolation device is all had in downlink communication interface circuit 15, parallel communication interface circuit 21, distribution voltage interface circuit 20, distribution current interface circuit 19, fore-lying device microcontroller circuit 18 is all isolated on electrically with downlink communication passage 14, parallel communication port 22, distribution current lead-ins 23, distribution voltage lead-in 24, improves the functional reliability of fore-lying device microcontroller circuit 18 greatly.
Communication interface circuit 13 is had in Body Controller 11, electrical isolation device is had in communication interface circuit 13, serial communication channels 14 is isolated on electrically with other circuit in Body Controller 11, and improve the Electro Magnetic Compatibility of Body Controller 11 with this, working stability is reliable; The human body sensing device 31 be connected with fore-lying device microcontroller circuit 18 is had in fore-lying device 2, when human body proximity, microcontroller circuit makes LCDs 16 luminescence display, delay-action when human body leaves, overcomes short the neck of reliability problem in liquid crystal display screen 16 useful life.
Although the present invention illustrates with regard to preferred implementation and describes, only it will be understood by those of skill in the art that otherwise exceed claim limited range of the present invention, variations and modifications can be carried out to the present invention.
Claims (4)
1. an intelligent high-voltage reactive power compensation device, it is characterized in that, comprise: have the loop that 2 structures are identical at least, intelligent contactor body (1) one is had in each loop, intelligent contactor fore-lying device (2) one, high-voltage power capacitor (3) groups, intelligent contactor body (1) end of incoming cables (33) is connected with power source bus (25) on electrically, leading-out terminal (32) is connected with the end of incoming cables of Capacitor banks (3) on electrically, there is serial communication channels (14) to be connected between intelligent contactor body (1) with intelligent contactor fore-lying device (2), use serial communication mode to be connected therebetween and carry out information exchange, there is serial bus type communication port (22) to be connected in each loop between intelligent contactor fore-lying device (2), use serial communication bus (22) to carry out information exchange each other, distribution voltage instrument transformer output bus (24) connects with each intelligent contactor fore-lying device (2), and distribution current transformer output line (23) connects each intelligent contactor fore-lying device (2), distribution voltage transducer (6) is had in intelligent contactor body (1), load current sensor (8), switching winding (61), closing coil (62), contactless contactor moving contact (4) and fixed contact (5), the moving contact stroke sensor (9) be connected with moving contact action bars, Body Controller (11), distribution voltage transducer (6), load current instrument transformer (8), contactless contactor moving contact stroke sensor (9), switching winding (61), closing coil (62) is all connected with Body Controller (11), contactless contactor moving contact (4) is connected to circuit (7) over the ground.
2. intelligent high-voltage reactive power compensation device as claimed in claim 1, it is characterized in that, Body Controller (11) is embedded with in intelligent contactor body (1), have divide-shut brake coil drive interface circuit (12) and microcontroller circuit (30) in Body Controller (11), divide-shut brake coil drive interface circuit (12) has control outlet device (26), divide-shut brake change-over circuit (10), filter circuit (59), divide-shut brake current detection circuit (28), isolated drive circuit (27), energy storage capacitor (29); Sub-gate circuit accesses power supply by divide-shut brake current detection circuit (28), control outlet device (26), filter circuit (59), divide-shut brake change-over circuit (10) first tie point, switching winding (61) after being connected; Closing circuit accesses power supply by divide-shut brake current detection circuit (28), control outlet device (26), filter circuit (59), divide-shut brake change-over circuit (10) second tie point, closing coil (62) after being connected.
3. intelligent high-voltage reactive power compensation device as claimed in claim 1, it is characterized in that, Intelligent high-pressure contactor fore-lying device (2) has fore-lying device microcontroller circuit (18), and coupled has LCDs (16), operating parts (17), distribution voltage interface circuit (20), distribution current interface circuit (19), downlink communication interface circuit (15), parallel communication interface circuit (21); LCDs (16), operating parts (17) are for human-computer dialogue; Downlink communication interface circuit (15) is for communicating to Body Controller (11); Parallel communication interface circuit (21) carrys out work for communicating with the fore-lying device (2) in other loops in intelligent high-pressure reactive compensation device with construction system; Distribution voltage, distribution current conversion are become fore-lying device microcontroller circuit (18) discernible signal by distribution voltage interface circuit (20), distribution current interface circuit (19) respectively; All have electrical isolation device in downlink communication interface circuit (15), parallel communication interface circuit (21), distribution voltage interface circuit (20), distribution current interface circuit (19), fore-lying device microcontroller circuit (18) is all isolated on electrically with downlink communication passage (14), parallel communication port (22), distribution current lead-ins (23), distribution voltage lead-in (24).
4. intelligent high-voltage reactive power compensation device as claimed in claim 3, it is characterized in that, communication interface circuit (13) is had in Body Controller (11), communication interface circuit has electrical isolation device in (13), and serial communication channels (14) is isolated on electrically with other circuit in Body Controller (11); The human body sensing device (31) that fore-lying device is connected with microcontroller circuit (18) is had in fore-lying device (2).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410014130.0A CN103762605B (en) | 2014-01-13 | 2014-01-13 | Intelligent high-voltage reactive power compensation device |
| CN201420018784.6U CN203674723U (en) | 2014-01-13 | 2014-01-13 | High-voltage wattless power intelligent compensation device |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410014130.0A CN103762605B (en) | 2014-01-13 | 2014-01-13 | Intelligent high-voltage reactive power compensation device |
| CN201420018784.6U CN203674723U (en) | 2014-01-13 | 2014-01-13 | High-voltage wattless power intelligent compensation device |
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| Publication Number | Publication Date |
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| CN103762605A CN103762605A (en) | 2014-04-30 |
| CN103762605B true CN103762605B (en) | 2015-04-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420018784.6U Withdrawn - After Issue CN203674723U (en) | 2014-01-13 | 2014-01-13 | High-voltage wattless power intelligent compensation device |
| CN201410014130.0A Active CN103762605B (en) | 2014-01-13 | 2014-01-13 | Intelligent high-voltage reactive power compensation device |
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| CN201420018784.6U Withdrawn - After Issue CN203674723U (en) | 2014-01-13 | 2014-01-13 | High-voltage wattless power intelligent compensation device |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN203674723U (en) * | 2014-01-13 | 2014-06-25 | 江苏现代电力科技股份有限公司 | High-voltage wattless power intelligent compensation device |
| CN106058878B (en) * | 2016-06-08 | 2018-07-10 | 江苏现代电力科技股份有限公司 | Intelligent integrated low-voltage reactive power module and its control method based on Internet of Things |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203674723U (en) * | 2014-01-13 | 2014-06-25 | 江苏现代电力科技股份有限公司 | High-voltage wattless power intelligent compensation device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7804038B2 (en) * | 2007-09-28 | 2010-09-28 | Rockwell Automation Technologies, Inc. | Multi-vacuum contactor control system |
| CN201113451Y (en) * | 2007-10-24 | 2008-09-10 | 朱有胜 | High voltage reactive-load autocompensation apparatus |
| CN202840529U (en) * | 2012-10-23 | 2013-03-27 | 梁郭泰 | Intelligent high-voltage reactive compensation device |
| CN203014389U (en) * | 2012-12-30 | 2013-06-19 | 浙江紫光电器有限公司 | High-voltage reactive power automatic compensation device |
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2014
- 2014-01-13 CN CN201420018784.6U patent/CN203674723U/en not_active Withdrawn - After Issue
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN203674723U (en) * | 2014-01-13 | 2014-06-25 | 江苏现代电力科技股份有限公司 | High-voltage wattless power intelligent compensation device |
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| CN203674723U (en) | 2014-06-25 |
| CN103762605A (en) | 2014-04-30 |
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Denomination of invention: Intelligent high-voltage reactive power compensation device Effective date of registration: 20200521 Granted publication date: 20150408 Pledgee: Bank of Jiangsu Co., Ltd. Nantong Gangzha sub branch Pledgor: JIANGSU MODERN ELECTRIC TECHNOLOGY Co.,Ltd. Registration number: Y2020980002372 |
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Date of cancellation: 20210811 Granted publication date: 20150408 Pledgee: Bank of Jiangsu Co.,Ltd. Nantong Gangzha sub branch Pledgor: JIANGSU MODERN ELECTRIC TECHNOLOGY Co.,Ltd. Registration number: Y2020980002372 |
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Denomination of invention: Intelligent high voltage reactive power compensation device Effective date of registration: 20210812 Granted publication date: 20150408 Pledgee: Bank of Jiangsu Co.,Ltd. Nantong Gangzha sub branch Pledgor: JIANGSU MODERN ELECTRIC TECHNOLOGY Co.,Ltd. Registration number: Y2021320000175 |