CN104682400A - Reactive power compensation device with redundant power supply - Google Patents
Reactive power compensation device with redundant power supply Download PDFInfo
- Publication number
- CN104682400A CN104682400A CN201410830302.1A CN201410830302A CN104682400A CN 104682400 A CN104682400 A CN 104682400A CN 201410830302 A CN201410830302 A CN 201410830302A CN 104682400 A CN104682400 A CN 104682400A
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- China
- Prior art keywords
- reactive power
- module
- circuit breaker
- reactive
- control module
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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
Abstract
The invention provides a reactive power compensation device with a redundant power supply. Data acquired by a current transformer is analyzed and compared by setting a reactive power compensation controller; a composite switch and a micro circuit breaker are adjusted to form a feedback loop. While the reaction speed is guaranteed, the surge protection efficiency of the reactive power compensation device is improved, and the safety coefficient of the reactive power compensation device is greatly improved; while surge protection is adjusted, the compensation precision and the capacity load increasing amount of the reactive power compensation device are improved; due to the fact that power supply redundancy is increased, when the electric quantity of one power module is used up or the power module fails, a redundant power module can substitute the power module, the electric energy reserves are higher, the safety coefficient is higher, and the reactive power compensation device can be more adaptive to outdoor long-tern reactive power compensation.
Description
Technical field
The present invention relates to reactive power compensation field, particularly possess the reactive power compensator of redundant power.
Background technology
In reactive power compensation, compensation precision embodies the efficiency of effective compensation, the lower meeting of compensation precision causes undercompensation or crosses the phenomenon of mending, and can consume a large amount of power in this process, reduces the efficiency of effective compensation, when load is more stable, its impact is especially obvious; And can capacity load be increased.
Reactive power compensator is generally used for open air and carries out reactive power compensation, and power consumption is large in addition, therefore needs the high and reactive power compensator that compensation precision is high of a kind of protective efficacy badly, and can realize outdoor reactive power compensation for a long time.
Reactive power compensator of the prior art generally adopts protector of surging to carry out protection of surging, and to improve the fail safe of reactive power compensator, but its protection limit is less, cannot be applicable to the demand of outdoor reactive power compensation.
Summary of the invention
In view of this, the reactive power compensator possessing redundant power provided by the invention, it possesses power supply redundancy, electric energy reserves are large, coefficient of safety is high and compensation precision is high.
Technical scheme of the present invention is achieved in that the reactive power compensator possessing redundant power, it is characterized in that: comprise the first power module, second source module, control module and compensating module, described control module connects the first power module and second source module by duplexer timesharing, and compensating module and control module are electrically connected; Described control module comprises idle compensating control, current transformer, combination switch and miniature circuit breaker, and described idle compensating control connects current transformer, combination switch and miniature circuit breaker respectively.
Further, control module also comprises protector of surging, described in protector of surging be connected in series current transformer.
Further, compensating module comprises capacitor, and described capacitor is self healing capacitor.
Further, the first power module comprises the first supply unit, the first circuit breaker and the first lightning arrester, and described first supply unit and the first circuit breaker, the first lightning arrester are electrically connected; Second source module comprises second source device, the second circuit breaker and the second lightning arrester, and described second source device and the second circuit breaker, the second lightning arrester are electrically connected.
Further, power module is provided with primary connection terminal, and described control module is provided with secondary wiring terminals.
Further, combination switch is thyristor.
Further, circuit breaker is mold cased circuit breaker.
Beneficial effect:
The reactive power compensator possessing redundant power provided by the invention, by arranging idle compensating control, the data analysis that current transformer is obtained, contrast, regulate combination switch and miniature circuit breaker, form feedback loop, while guarantee reaction speed, improve the protective efficacy of surging of reactive power compensator, greatly improve the coefficient of safety of reactive power compensator; While protection is surged in adjustment, improve compensation precision and the capacity load recruitment of reactive power compensator; And owing to invention increases power supply redundancy, when a power module electricity exhausts or breaks down wherein, redundant power module can be adopted to replace, and therefore in the present invention, electric energy reserves are larger, coefficient of safety is higher, more can be applicable to outdoor reactive power compensation for a long time.
Accompanying drawing explanation
Fig. 1 is the structured flowchart possessing the reactive power compensator of redundant power in the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
The reactive power compensator possessing redundant power provided by the invention, as shown in Figure 1, comprise the first power module, second source module, control module and compensating module, control module connects the first power module and second source module by duplexer timesharing, and compensating module and control module are electrically connected; Control module comprises idle compensating control, current transformer, combination switch and miniature circuit breaker, and idle compensating control connects current transformer, combination switch and miniature circuit breaker respectively.
Wherein control module also comprises protector of surging, and protector of surging is connected in series current transformer 240.
Container is self healing capacitor.
First power module comprises the first supply unit, the first circuit breaker and the first lightning arrester, and the first supply unit and the first circuit breaker, the first lightning arrester are electrically connected.
Second source module comprises second source device, the second circuit breaker and the second lightning arrester, and second source device and the second circuit breaker, the second lightning arrester are electrically connected.
Power module is provided with primary connection terminal, and control module is provided with secondary wiring terminals.
Combination switch is thyristor.
Circuit breaker is mold cased circuit breaker.
The present invention, by the feedback loop of idle compensating control, current transformer, combination switch and miniature circuit breaker composition in control module, adopts dynamic passive compensation mode, is applicable to the fluctuation of load than in situation more frequently; And the present invention also has a point function of mending, do good compensation can to some unbalanced loads; It is faster that reaction speed of the present invention compares static reactive power compensation mode; The situation larger in some fluctuations of load can compensate targetedly; Compensation precision is high, and can increase capacity load.
Power module realizes the power supply of control module and compensating module and once protects, and plays Main Function to the overall switching of reactive-load compensation equipment.
Compensating module is according to loading condiction parallel connection or be connected in series in control module.
Control module to be sampled to power network current mainly through current transformer and is inputted idle compensating control, the electric current that idle compensating control collects current transformer is analyzed, is stored, and contrast setup parameter value output switching signal, and by switching signal transmission in combination switch, in switching process, auxiliary contact first closes, the resistance of connecting with auxiliary contact makes capacitor precharge, and then main contact closes again, thus shoving when limiting capacitance device drops into; Thyristor is realized voltage zero-cross input and excises with current over-zero by combination switch exactly.
Compensating module is formed primarily of self healing capacitor, self healing capacitor adopts single-layer polypropylene film as medium, and the surperficial evaporation thin metal of one deck is as conductive electrode.When applying too high voltage, polypropylene screen electricity weakness is breakdown, and breakdown point impedance obviously reduces, the current density flow through sharply increases, and make metallization coating produce high heat, the metallic conductor around breakdown point evaporates loss rapidly, form coat of metal clear area, breakdown point recovers insulation automatically.
The reactive power compensator possessing redundant power provided by the invention, by arranging idle compensating control, the data analysis that current transformer is obtained, contrast, regulate combination switch and miniature circuit breaker, form feedback loop, while guarantee reaction speed, improve the protective efficacy of surging of reactive power compensator, greatly improve the coefficient of safety of reactive power compensator; While protection is surged in adjustment, improve compensation precision and the capacity load recruitment of reactive power compensator.
Present invention employs the first power module and second source module two power modules, form main standby redundancy, when a power module electricity exhausts or breaks down wherein, duplexer timesharing can be adopted to connect another one power module replace, therefore in the present invention, electric energy reserves are larger, coefficient of safety is higher, more can be applicable to outdoor reactive power compensation for a long time.
Certainly; when not deviating from the present invention's spirit and essence thereof; those of ordinary skill in the art should make various corresponding change and distortion according to the present invention, but these change accordingly and are out of shape the protection range that all should belong to the claim appended by the present invention.
Claims (7)
1. possesses the reactive power compensator of redundant power, it is characterized in that: comprise the first power module, second source module, control module and compensating module, described control module connects the first power module and second source module by duplexer timesharing, and compensating module and control module are electrically connected; Described control module comprises idle compensating control, current transformer, combination switch and miniature circuit breaker, and described idle compensating control connects current transformer, combination switch and miniature circuit breaker respectively.
2. the reactive power compensator possessing redundant power according to claim 1, is characterized in that: described control module also comprises protector of surging, described in protector of surging be connected in series current transformer.
3. the reactive power compensator possessing redundant power according to claim 1, is characterized in that: described compensating module comprises capacitor, described capacitor is self healing capacitor.
4. the reactive power compensator possessing redundant power according to claim 1, it is characterized in that: described first power module comprises the first supply unit, the first circuit breaker and the first lightning arrester, described first supply unit and the first circuit breaker, the first lightning arrester are electrically connected;
Described second source module comprises second source device, the second circuit breaker and the second lightning arrester, and described second source device and the second circuit breaker, the second lightning arrester are electrically connected.
5. the reactive power compensator possessing redundant power according to claim 1, it is characterized in that: described power module is provided with primary connection terminal, described control module is provided with secondary wiring terminals.
6. the reactive power compensator possessing redundant power according to claim 1, is characterized in that: described combination switch is thyristor.
7. the reactive power compensator possessing redundant power according to claim 4, is characterized in that: described circuit breaker is mold cased circuit breaker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410830302.1A CN104682400A (en) | 2014-12-25 | 2014-12-25 | Reactive power compensation device with redundant power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410830302.1A CN104682400A (en) | 2014-12-25 | 2014-12-25 | Reactive power compensation device with redundant power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104682400A true CN104682400A (en) | 2015-06-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410830302.1A Pending CN104682400A (en) | 2014-12-25 | 2014-12-25 | Reactive power compensation device with redundant power supply |
Country Status (1)
| Country | Link |
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| CN (1) | CN104682400A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105846452A (en) * | 2016-06-08 | 2016-08-10 | 江苏现代电力科技股份有限公司 | Intelligent integrated reactive power module capable of self-programming and self-programming method thereof |
-
2014
- 2014-12-25 CN CN201410830302.1A patent/CN104682400A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105846452A (en) * | 2016-06-08 | 2016-08-10 | 江苏现代电力科技股份有限公司 | Intelligent integrated reactive power module capable of self-programming and self-programming method thereof |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150603 |