CN201946982U - 10kV distribution line serial compensation and voltage regulation device based on an adaptive control - Google Patents
10kV distribution line serial compensation and voltage regulation device based on an adaptive control Download PDFInfo
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- CN201946982U CN201946982U CN2011200463414U CN201120046341U CN201946982U CN 201946982 U CN201946982 U CN 201946982U CN 2011200463414 U CN2011200463414 U CN 2011200463414U CN 201120046341 U CN201120046341 U CN 201120046341U CN 201946982 U CN201946982 U CN 201946982U
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Abstract
The utility model discloses a 10kV distribution line serial compensation and voltage regulation device based on adaptive control including: a switching switch set, a compensation device, a control module and a reactor, in which, the control module contains two voltage mutual-inductors, a compensation breaker and a by-pass breaker, and one of the two voltage mutual inductors is connected with the input of the compensation device, the other is connected with the output of the compensation device parallel to the by-pass breaker, the input is serial to the compensation breaker and the reactor orderly. The advantages of the utility model are as follows: the serial compensation and voltage regulation device reduces theoretical supply radius by the inductance of the compensation distribution circuit and increases voltage of load.
Description
Technical field
The utility model relates to a kind of distribution line compensation arrangement, and is particularly a kind of in the 10kV of adaptive control distribution line string benefit regulator.
Background technology
The distribution line big for radius of electricity supply, that load fluctuation is big, the voltage loss of circuit is bigger, usually causes the voltage levvl of load side on the low side, and voltage fluctuation is big, is difficult to satisfy the requirement of voltage stabilized quality.Therefore, need carry out voltage-regulation, with the voltage of raising and steady load side with compensation arrangement.Existing shunt capacitor compensation arrangement, by the mode in parallel with line load, the reactive power of compensation load, square being directly proportional of the compensation rate of reactive power and load voltage.It can reduce the reactive current that flows through circuit, thereby reduces to load on the line voltage loss, and then improves the voltage levvl of load side.But when load increases, load voltage descends and needs and when mending device and compensating more reactive power, it can't meet the demands because the reactive power compensation amount that terminal voltage decline provides descends on the contrary.If dispose jumbo capacitor by the requirement of peak load and carry out grouping switching, then for the bigger power supply situation of load fluctuation, switching is more frequent, the impact of capacitor often, useful life is lower.Therefore, the distribution line big for radius of electricity supply, that load fluctuation is big, traditional power capacitor reactive compensation installation can't satisfy the pressure regulation requirement.Though and the string of also developing some is at present mended regulator, it is at load front end series connection high-voltage capacitor that so-called string is mended regulator, the induction reactance of utilizing the capacitive reactance of capacitor to come the compensating wire circuit, reduce the theoretical radius of electricity supply of circuit, thereby reduced the voltage loss from the feeder ear to the load side, improved the voltage levvl of load side.But existing string is mended regulator and is withdrawed from when compensating, there is an of short duration power failure process, though interruption duration is very short, but owing to what connect behind the distribution line is load, a lot of loads are had relatively high expectations to quality of voltage, of short duration power failure all might cause adverse effect to the normal operation of load, such as electrical equipment damage, loss of data or the like, therefore can't be big, used on the distribution line that load fluctuation is big in radius of electricity supply.
The utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art part, and a kind of load side voltage levvl that can obviously improve is provided, and can steady load voltage when negative variation, effectively improves the load side quality of voltage.This adaptive control string is mended the pressure regulation that regulator is applicable to the 10kV distribution line that radius of electricity supply is big, load fluctuation is big.
A kind of 10kV distribution line string based on adaptive control is mended regulator; comprise the fling-cut switch group; compensation arrangement; described compensation arrangement comprises capacitor compensation module and capacitor compensation protection module; the fling-cut switch group includes at least three fling-cut switch; one of them switch is connected on the distribution line; two switches connect distribution line and compensation arrangement in addition; it is characterized in that: described string is mended regulator and is also included control module and reactor; described control module includes two voltage transformers and compensation circuit breaker and bypass breaker; input that is connected to compensation arrangement of described two voltage transformers; an output that is connected to compensation arrangement; described bypass breaker and compensation arrangement parallel connection are serially connected with compensation circuit breaker and reactor successively at the input of compensation arrangement.
Distribution line string based on adaptive control of the present utility model is mended regulator, surveys voltage when on the low side when control detects load with voltage transformer, drops into series capacitor compensation, disconnects bypass breaker immediately behind the compensation breaker closing; When withdrawing from series capacitor compensation, disconnect the compensation circuit breaker after the bypass breaker closure immediately.String is mended the switching that device can be controlled circuit breaker according to the size of load voltage, regulates adaptively and steady load voltage.The switching control of two circuit breakers is controlled by control module.When the reactor of connecting before compensation arrangement is used to withdraw from series capacitor compensation, reduces to disconnect the compensation impulse current that circuit breaker brought after closed bypass is earlier opened circuit, thereby realize the uninterrupted power supply of switching process.
The output setting that described string benefit regulator also is included in compensation arrangement is serially connected with current transformer.
Output at compensation arrangement is provided with current transformer, is used to realize going here and there the overcurrent protection of mending regulator.In case current transformer detects the short circuit current of system, can withdraw from compensation rapidly.
Input and output at compensation arrangement also are provided with lightning arrester.
Be used to prevent the intrusion of exterior overvoltage at the lightning arrester of string benefit regulator import and export.
Described fling-cut switch is a switch isolation switch.
In sum, the utility model has following advantage compared to existing technology:
String is mended the induction reactance of regulator by the compensation distribution line, has reduced the theoretical radius of electricity supply of circuit, has improved the voltage levvl of load side.Secondly, when load increased, when the voltage loss on the online road feel of loading is anti-increased, the voltage compensation quantity that load forms on series capacitor also increased; In like manner, when load reduced, voltage compensation quantity also reduced; String is mended the voltage-regulation function that regulator is this and payload is reverse and is made its steady load side voltage effectively.The distribution line big for radius of electricity supply, that load fluctuation is big, string is mended the voltage levvl that regulator can improve load side significantly, and can steady load side voltage when load fluctuation, has improved the quality of voltage of load side effectively.
Description of drawings
Fig. 1 is the primary connection figure that the string of the utility model embodiment is mended regulator.
Fig. 2 is protection and the control principle figure of the utility model embodiment.
Embodiment
Below in conjunction with embodiment the utility model is described in more detail.
Embodiment 1
A kind of power distribution network string based on adaptive control shown in Fig. 1-2 is mended regulator, comprises the fling-cut switch group that is made of isolation switch, compensation arrangement, and control module.Described compensation arrangement comprises capacitance compensation module and capacitance compensation protection module; the fling-cut switch group includes at least three isolation switch; one of them switch is connected on the distribution line; two switches connect distribution line and compensation arrangement in addition; described string is mended regulator and is also included control module and reactor; described control module includes two voltage transformers and compensation circuit breaker and bypass breaker; input that is connected to compensation arrangement of described two voltage transformers; an output that is connected to compensation arrangement; described bypass breaker and compensation arrangement parallel connection are serially connected with compensation circuit breaker and reactor successively at the input of compensation arrangement.The output setting that described string benefit regulator also is included in compensation arrangement is serially connected with current transformer.Input and output at compensation arrangement also are provided with lightning arrester.Described fling-cut switch isolation switch.
It is same as the prior art that present embodiment is not stated part.
Claims (4)
1. the 10kV distribution line string based on adaptive control is mended regulator; comprise the fling-cut switch group; compensation arrangement; described compensation arrangement comprises capacitor compensation module and capacitor compensation protection module; the fling-cut switch group includes at least three fling-cut switch; one of them switch is connected on the distribution line; two switches connect distribution line and compensation arrangement in addition; it is characterized in that: described string is mended regulator and is also included control module and reactor; described control module includes two voltage transformers and compensation circuit breaker and bypass breaker; input that is connected to compensation arrangement of described two voltage transformers; an output that is connected to compensation arrangement; described bypass breaker and compensation arrangement parallel connection are serially connected with compensation circuit breaker and reactor successively at the input of compensation arrangement.
2. the 10kV distribution line string based on adaptive control according to claim 1 is mended regulator, it is characterized in that: the output setting that described string benefit regulator also is included in compensation arrangement is serially connected with current transformer.
3. the power distribution network string based on adaptive control according to claim 2 is mended regulator, and it is characterized in that: input and output at compensation arrangement also are provided with lightning arrester.
4. the power distribution network string based on adaptive control according to claim 3 is mended regulator, and it is characterized in that: described fling-cut switch is an isolation switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200463414U CN201946982U (en) | 2011-02-23 | 2011-02-23 | 10kV distribution line serial compensation and voltage regulation device based on an adaptive control |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200463414U CN201946982U (en) | 2011-02-23 | 2011-02-23 | 10kV distribution line serial compensation and voltage regulation device based on an adaptive control |
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| CN201946982U true CN201946982U (en) | 2011-08-24 |
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| CN2011200463414U Expired - Fee Related CN201946982U (en) | 2011-02-23 | 2011-02-23 | 10kV distribution line serial compensation and voltage regulation device based on an adaptive control |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102801150A (en) * | 2012-08-28 | 2012-11-28 | 西安布伦帕电力无功补偿技术有限公司 | Voltage fluctuation and flicker inhibitor used for power supply system |
| CN103701135A (en) * | 2013-11-25 | 2014-04-02 | 国家电网公司 | Intelligent series compensation device for distribution network and use method of compensation device |
| CN104659793A (en) * | 2015-03-06 | 2015-05-27 | 云南电网有限责任公司电力科学研究院 | Novel series compensation device for power distribution network |
| CN105977989A (en) * | 2016-06-12 | 2016-09-28 | 国网上海市电力公司 | Series-parallel hybrid active voltage regulating device for power distribution network |
| CN106849102A (en) * | 2017-03-02 | 2017-06-13 | 安徽伊格瑞德电气设备有限公司 | A kind of mesohigh series compensation and depth current limiting system |
| CN110571819A (en) * | 2019-09-12 | 2019-12-13 | 宁波市电力设计院有限公司 | novel distribution network voltage regulator device |
-
2011
- 2011-02-23 CN CN2011200463414U patent/CN201946982U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102801150A (en) * | 2012-08-28 | 2012-11-28 | 西安布伦帕电力无功补偿技术有限公司 | Voltage fluctuation and flicker inhibitor used for power supply system |
| CN103701135A (en) * | 2013-11-25 | 2014-04-02 | 国家电网公司 | Intelligent series compensation device for distribution network and use method of compensation device |
| CN104659793A (en) * | 2015-03-06 | 2015-05-27 | 云南电网有限责任公司电力科学研究院 | Novel series compensation device for power distribution network |
| CN105977989A (en) * | 2016-06-12 | 2016-09-28 | 国网上海市电力公司 | Series-parallel hybrid active voltage regulating device for power distribution network |
| CN105977989B (en) * | 2016-06-12 | 2019-02-26 | 国网上海市电力公司 | The series and parallel combined active regulator of power distribution network |
| CN106849102A (en) * | 2017-03-02 | 2017-06-13 | 安徽伊格瑞德电气设备有限公司 | A kind of mesohigh series compensation and depth current limiting system |
| CN110571819A (en) * | 2019-09-12 | 2019-12-13 | 宁波市电力设计院有限公司 | novel distribution network voltage regulator device |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110824 Termination date: 20190223 |