CN204118748U - Step-less adjustment low-voltage dynamic filtering compensating apparatus - Google Patents
Step-less adjustment low-voltage dynamic filtering compensating apparatus Download PDFInfo
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- CN204118748U CN204118748U CN201420471569.1U CN201420471569U CN204118748U CN 204118748 U CN204118748 U CN 204118748U CN 201420471569 U CN201420471569 U CN 201420471569U CN 204118748 U CN204118748 U CN 204118748U
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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
- Y02E40/10—Flexible AC transmission systems [FACTS]
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Abstract
The utility model discloses a kind of step-less adjustment low-voltage dynamic filtering compensating apparatus, relate to the device technique field of reducing harmonic wave or ripple.Comprise casing, control system is provided with in described casing, static state reactive generator SVG and several thyristor switchable capacitors TSC, described static state reactive generator SVG is connected in parallel on bus rod through circuit breaker summation current transformer successively, described thyristor switchable capacitor TSC is at least provided with two, each thyristor switchable capacitor TSC is respectively successively through being connected in parallel on bus rod through circuit breaker summation current transformer, described control system is electrically connected with bus rod, for gathering power system reactive power, and according to the switching of the Reactive Power Control static state reactive generator SVG collected and thyristor switchable capacitor TSC.Described device not only achieves the step-less adjustment of compensation arrangement, and low cost of manufacture.
Description
Technical field
The utility model relates to the device technique field of reducing harmonic wave or ripple, particularly relates to a kind of step-less adjustment low-voltage dynamic filtering compensating apparatus.
Background technology
At present, the mode of prior art mesolow dynamic filter compensation device generally using controllable silicon as switch on-off LC filter circuit, be called for short TSC, this switching mode has the advantages that dynamic response time is fast, nothing is impacted, just can throw without the need to electric discharge without inrush phenomenon, capacitor again, and dynamic response time is 20ms.But TSC belongs to has level to regulate filtering compensation device, single pool-size is smaller, reasonable compensation precision can be realized, but number of elements can be caused to increase, equipment cost is too high, single pool-size is excessive, can have a strong impact on the precision of reactive power compensation, causes power factor deficiency or mistake in running to mend, even causes switching repeatedly.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of step-less adjustment low-voltage dynamic filtering compensating apparatus, the mode that described compensation arrangement adopts static state reactive generator SVG and several thyristor switchable capacitors TSC to combine carries out reactive power compensation, by increasing the single capacity of TSC part, to reach the object reducing components and parts, not only reduce the manufacturing cost of described compensation arrangement, also achieve the step-less adjustment of compensation arrangement.
For solving the problems of the technologies described above, technical solution adopted in the utility model is: a kind of step-less adjustment low-voltage dynamic filtering compensating apparatus, comprise casing, it is characterized in that: in described casing, be provided with control system, static state reactive generator SVG and several thyristor switchable capacitors TSC, described static state reactive generator SVG is connected in parallel on bus rod through circuit breaker summation current transformer successively, described thyristor switchable capacitor TSC is at least provided with two, each thyristor switchable capacitor TSC is respectively successively through being connected in parallel on bus rod through circuit breaker summation current transformer, described control system is electrically connected with bus rod, for gathering power system reactive power, and according to the switching of the Reactive Power Control static state reactive generator SVG collected and thyristor switchable capacitor TSC.
Further technical scheme is: the capacity 250kVar of described static state reactive generator SVG, and the first-harmonic capacity of described thyristor switchable capacitor TSC is 500kVar.
The beneficial effect adopting technique scheme to produce is: the mode that described compensation arrangement adopts static state reactive generator SVG and several thyristor switchable capacitors TSC to combine carries out reactive power compensation, by increasing the single capacity of TSC part, to reach the object reducing components and parts, not only reduce the manufacturing cost of described compensation arrangement, also achieve the step-less adjustment of compensation arrangement.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Fig. 1 is theory diagram of the present utility model;
Wherein: 1, control system 2, static state reactive generator SVG3, thyristor switchable capacitor TSC4, current transformer 5, bus rod.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only a part of embodiment of the present utility model, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Set forth a lot of detail in the following description so that fully understand the utility model, but the utility model can also adopt other to be different from alternate manner described here to implement, those skilled in the art can when doing similar popularization without prejudice to when the utility model intension, and therefore the utility model is by the restriction of following public specific embodiment.
As shown in Figure 1, the utility model discloses a kind of step-less adjustment low-voltage dynamic filtering compensating apparatus, comprise casing, control system 1 is provided with in described casing, static state reactive generator SVG2 and several thyristor switchable capacitors TSC3, the capacity 250kVar of described static state reactive generator SVG2 in the present embodiment, the first-harmonic capacity of described thyristor switchable capacitor TSC3 is 500kVar, certainly static state reactive generator SVG and the thyristor switchable capacitor TSC of other capacity can also be selected, those skilled in the art can carry out suitable adjustment according to actual needs.
Described static state reactive generator SVG2 is connected in parallel on bus rod 5 through circuit breaker summation current transformer 4 successively, described thyristor switchable capacitor TSC3 is at least provided with two, each thyristor switchable capacitor TSC3 is respectively successively through being connected in parallel on bus rod 5 through circuit breaker summation current transformer 4, described control system 1 is electrically connected with bus rod 5, for gathering power system reactive power, and according to the switching of the Reactive Power Control static state reactive generator SVG2 collected and thyristor switchable capacitor TSC3, compensation circuit can be designed to the form of LC filter circuit according to actual conditions, thus realize the effect in passive filtering loop.
When electric power system has load running, the control system of described compensation arrangement is by voltage, current signal in detection of grid, required idle amount is calculated by instantaneous reactive algorithm, because SVG can send perception or the capacitive reactive power of any 0-250kVar, if so idle amount is less than or equal to 250kVar, preferential input SVG part, SVG part sends required capacitive reactive power; When calculating required idle amount and being greater than 250kVar and being less than or equal to 500kVar, preferential Article 1 loop of dropping into TSC, it is idle to eliminate the unnecessary capacitive reactive power of TSC that SVG sends perception; When calculating required idle amount and being greater than 500kVar and being less than or equal to 750kVar, preferential Article 1 loop of dropping into TSC, SVG sends capacitive reactive power to compensate the capacitive reactive power of TSC deficiency; Capacity large more all drops into according to this control method, to realize the function of step-less adjustment.
The mode that described compensation arrangement adopts static state reactive generator SVG and several thyristor switchable capacitors TSC to combine carries out reactive power compensation, by increasing the single capacity of TSC part, to reach the object reducing components and parts, not only reduce the manufacturing cost of described compensation arrangement, also achieve the step-less adjustment of compensation arrangement.
Claims (2)
1. a step-less adjustment low-voltage dynamic filtering compensating apparatus, comprise casing, it is characterized in that: in described casing, be provided with control system (1), static state reactive generator SVG (2) and several thyristor switchable capacitors TSC (3), described static state reactive generator SVG (2) is connected in parallel on bus rod (5) through circuit breaker summation current transformer (4) successively, described thyristor switchable capacitor TSC (3) is at least provided with two, each thyristor switchable capacitor TSC (3) is respectively successively through being connected in parallel on bus rod (5) through circuit breaker summation current transformer (4), described control system (1) is electrically connected with bus rod (5), for gathering power system reactive power, and according to the switching of the Reactive Power Control static state reactive generator SVG (2) collected and thyristor switchable capacitor TSC (3).
2. step-less adjustment low-voltage dynamic filtering compensating apparatus according to claim 1, it is characterized in that: the capacity 250kVar of described static state reactive generator SVG (2), the first-harmonic capacity of described thyristor switchable capacitor TSC (3) is 500kVar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420471569.1U CN204118748U (en) | 2014-08-20 | 2014-08-20 | Step-less adjustment low-voltage dynamic filtering compensating apparatus |
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| CN201420471569.1U CN204118748U (en) | 2014-08-20 | 2014-08-20 | Step-less adjustment low-voltage dynamic filtering compensating apparatus |
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| CN204118748U true CN204118748U (en) | 2015-01-21 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107749639A (en) * | 2017-09-30 | 2018-03-02 | 澳门大学 | Mixed type network-connecting generation inverter system equipped with power quality compensation |
| CN108092289A (en) * | 2018-02-13 | 2018-05-29 | 北京英博电气股份有限公司 | A kind of three-phase imbalance compensation device and system |
| CN109494759A (en) * | 2019-01-10 | 2019-03-19 | 瑞通阿西亚(天津)科技有限公司 | High voltage variable low pressure TSC device |
| CN112769144A (en) * | 2020-12-30 | 2021-05-07 | 西安西驰电气股份有限公司 | SVG and capacitor-based power grid hybrid compensation device and method |
| CN112769145A (en) * | 2020-12-30 | 2021-05-07 | 西安西驰电气股份有限公司 | SVG-capacitor coordination hybrid compensation control system and control method |
-
2014
- 2014-08-20 CN CN201420471569.1U patent/CN204118748U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107749639A (en) * | 2017-09-30 | 2018-03-02 | 澳门大学 | Mixed type network-connecting generation inverter system equipped with power quality compensation |
| CN107749639B (en) * | 2017-09-30 | 2020-12-18 | 澳门大学 | Hybrid grid-connected power generation inverter system with power quality compensation |
| CN108092289A (en) * | 2018-02-13 | 2018-05-29 | 北京英博电气股份有限公司 | A kind of three-phase imbalance compensation device and system |
| CN109494759A (en) * | 2019-01-10 | 2019-03-19 | 瑞通阿西亚(天津)科技有限公司 | High voltage variable low pressure TSC device |
| CN112769144A (en) * | 2020-12-30 | 2021-05-07 | 西安西驰电气股份有限公司 | SVG and capacitor-based power grid hybrid compensation device and method |
| CN112769145A (en) * | 2020-12-30 | 2021-05-07 | 西安西驰电气股份有限公司 | SVG-capacitor coordination hybrid compensation control system and control method |
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