CN103701139A - Access system for static var generator - Google Patents
Access system for static var generator Download PDFInfo
- Publication number
- CN103701139A CN103701139A CN201310746263.2A CN201310746263A CN103701139A CN 103701139 A CN103701139 A CN 103701139A CN 201310746263 A CN201310746263 A CN 201310746263A CN 103701139 A CN103701139 A CN 103701139A
- Authority
- CN
- China
- Prior art keywords
- voltage
- connecting system
- voltage parameter
- reacance generator
- static reacance
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- 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]
Landscapes
- Control Of Eletrric Generators (AREA)
Abstract
The invention discloses an access system for a static var generator. The access system for the static var generator comprises a current-limiting resistor, a closing switch, a first sensor, a second sensor and a comparison device, wherein the current-limiting resistor is used for charging the static var generator in advance; then, the frequency, the amplitude and the phase of the voltage of the high-voltage bus of a power grid and the frequency, the amplitude and the phase of the voltage of the power output end of the static var generator are detected; when the frequency, the amplitude and the phase of the voltage of the high-voltage bus of the power grid and the frequency, the amplitude and the phase of the voltage of the power output end of the static var generator are consistent, the closing switch can be closed; because the frequency, the amplitude and the phase of the voltage of the high-voltage bus of the power grid and the frequency, the amplitude and the phase of the voltage of the power output end of the static var generator are consistent, no impulse current is generated; therefore, impact on the power grid and the static var generator can be avoided.
Description
Technical field
The application relates to electric and electronic technical field, more particularly, relates to a kind of connecting system of static reacance generator.
Background technology
In high-pressure reactive compensation technical field, static reactive technical development is swift and violent at present, and technical reaching its maturity applied increasingly extensive.Static reacance generator can be according to the reactive power of the automatic regulation output of concrete condition of electrical network, and fast response time can be realized stepless fine compensation completely.
Static reacance generator being accessed to the moment of electrical network, tend to produce surge current.Surge is short, but peak value is larger, tends to electrical network and static reacance generator itself to produce larger impact, may interfere with other equipment on electrical network, even causes protection misoperation.
Summary of the invention
In view of this, the application provides a kind of static reacance generator connecting system, for static reacance generator is accessed to electrical network, to avoid that electrical network and static reacance generator are produced to impact.
To achieve these goals, the existing scheme proposing is as follows:
A connecting system for static reacance generator, comprising:
Current-limiting resistance, one end of described current-limiting resistance is connected with the high voltage bus of electrical network, and the other end is connected with the series reactor of described static reacance generator;
Closing switch, the two ends of described closing switch are connected with the two ends of described series resistance respectively;
First sensor, for detection of the voltage parameter of described high voltage bus, and as the first voltage parameter;
The second transducer, for detection of the voltage parameter of described power take-off, and as second voltage parameter;
Described voltage parameter comprises frequency, amplitude and the phase place of voltage;
Comparison means, for described the first voltage parameter and described second voltage parameter are contrasted, output regulation signal when both are inconsistent is exported switching signal when both are consistent;
Described switching signal is as closing switch is carried out to closed foundation.
Preferably, described closing switch is contactor or circuit breaker.
Preferably, described first sensor is voltage transformer.
Preferably, described the second transducer is voltage transformer.
Preferably, also comprise:
Power network switch, is arranged between described series resistance and described bus, for being switched on or switched off being electrically connected between described series resistance and described bus.
Preferably, described power network switch is contactor or circuit breaker.
Preferably, also comprise:
Closing device is closed for control described closing switch according to described switching signal.
Preferably, also comprise:
Regulating system, for the master control system output adjusting command to described static reacance generator according to described conditioning signal, described adjusting command is used for controlling described master control system described second voltage parameter is regulated.
Preferably, described regulating system is connected by optical fiber with described master control system.
Preferably, also comprise:
Display unit, for showing described the first voltage parameter and described second voltage parameter.
From technique scheme, can find out, the connecting system of the static reacance generator that the application provides charges to static reacance generator in advance by current-limiting resistance, then the frequency of the voltage of the power take-off of the frequency of the voltage of the high voltage bus of detection of grid, amplitude and phase place and static reacance generator, amplitude and phase place, when both are consistent, both closing switch can be carried out to closure, because both frequencies, amplitude and phase place are consistent, therefore can not produce impulse current, thereby can avoid electrical network and static reacance generator to produce impact.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present application or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiment of the application, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The structure chart of the connecting system of a kind of static reacance generator that Fig. 1 provides for the embodiment of the present application;
The structure chart of the connecting system of a kind of static reacance generator that Fig. 2 provides for another embodiment of the application;
The structure chart of the connecting system of a kind of static reacance generator that Fig. 3 provides for the another embodiment of the application;
The structure chart of the connecting system of a kind of static reacance generator that Fig. 4 provides for the another embodiment of the application;
The structure chart of the connecting system of a kind of static reacance generator that Fig. 5 provides for the another embodiment of the application.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present application, the technical scheme in the embodiment of the present application is clearly and completely described, obviously, described embodiment is only the application's part embodiment, rather than whole embodiment.Embodiment based in the application, those of ordinary skills are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the application's protection.
Embodiment mono-
The connecting system of a kind of static reacance generator that Fig. 1 provides for the embodiment of the present application.
As shown in Figure 1, the disclosed connecting system of the present embodiment comprises current-limiting resistance R, closing switch K1, first sensor 30, the second transducer 40 and comparison means 50.Wherein: one end of current-limiting resistance R is connected with the high voltage bus of electrical network 10, the other end is connected with the series reactor L of static reacance generator 20; Closing switch K1 is in parallel with current-limiting resistance R, and the two ends of closing switch K1 are connected with the two ends of current-limiting resistance R respectively; First sensor 30 is connected with high voltage bus 10; The second transducer 40 is connected with the power take-off B of static reacance generator 20; Comparison means 50 is connected with first sensor 30, the second transducer 40 respectively.
Current-limiting resistance R is for charging to static reacance generator 20 when the incipient stage of static reacance generator 20 access electrical networks, so that static reacance generator 20 starts steady operation.
The second transducer 40 is for detection of frequency, amplitude and the phase place of the voltage of the power take-off B of static reacance generator 20.
Comparison means 50 compares for frequency, amplitude and the phase place that first sensor 30 and the second transducer 40 are exported respectively, if frequency, amplitude and the phase place of two transducer outputs are inconsistent, and output regulation signal; If consistent, export switching signal, switching signal is as by the foundation of closing switch K1 closure.
From technique scheme, can find out, the connecting system of the disclosed static reacance generator of the present embodiment charges to static reacance generator in advance by current-limiting resistance, then the frequency of the voltage of the power take-off of the frequency of the voltage of the high voltage bus of detection of grid, amplitude and phase place and static reacance generator, amplitude and phase place, when both are consistent, both closing switch can be carried out to closure, because both frequencies, amplitude and phase place are consistent, therefore can not produce impulse current, thereby can avoid electrical network and static reacance generator to produce impact.
In the present embodiment, the preferred contactor of closing switch K1 or circuit breaker.
The second transducer 40 preferred voltage instrument transformers.
Embodiment bis-
The structure chart of the connecting system of a kind of static reacance generator that Fig. 2 provides for another embodiment of the application.
As shown in Figure 2, the connecting system that the present embodiment provides is on the basis of a upper embodiment, to have set up power network switch K2.Power network switch K2 is arranged between the high voltage bus 10 of series resistance R and electrical network.
Power network switch K2 is for connecting or disconnecting being electrically connected between series resistance R and high voltage bus 10, to start to static reacance generator 20 input currents to charge or for static reacance generator 20 is excised from electrical network.
The preferred contactor of power network switch K2 or circuit breaker.
Embodiment tri-
Fig. 3 is the structure chart of the connecting system of the disclosed a kind of static reacance generator of the another embodiment of the application.
As shown in Figure 3, the disclosed connecting system of the present embodiment is on the basis of a upper embodiment, to have set up closing device 60.Closing device is connected with closing switch K1, comparison means 50 respectively.
When comparison means 50 output switching signal, show that frequency, amplitude and the phase place of the voltage of 2 is consistent, it is closed that closing device 60 controls closing switch K1, by static reacance generator 20 access electrical networks.
The closing device 60 of setting up can substitute and manually carry out closing operation, has increased the degree of automation.
In above embodiment, when frequency, amplitude and the phase place of comparison means through the voltage to 2 compares, when comparative result is inconsistent, may need manually the frequency of the voltage of the power take-off of static reacance generator, amplitude and phase place to be regulated, operating efficiency is lower.For addressing this problem, following embodiment is now proposed.
Embodiment tetra-
The structure chart of the connecting system of a kind of static reacance generator that Fig. 4 provides for the another embodiment of the application.
As shown in Figure 4, the connecting system that the present embodiment provides is on the basis of a upper embodiment, to have set up adjusting device 70.Adjusting device 70 is connected with the master control system 21 of comparison means 50, static reacance generator 20 respectively.
Adjusting device 70 is for exporting adjusting commands according to the conditioning signal of comparison means 50 outputs to master control system 21, and master control system 21 regulates the frequency of the output voltage of static reacance generator 20, amplitude and phase place according to this adjusting command.When frequency, amplitude and the phase place of output voltage and frequency, amplitude and the phase place of the voltage of high voltage bus 10 are when consistent, comparison means 50 will stop output regulation signal, and export switching signal, it is closed that closing device 60 is controlled closing switch K1 according to switching signal, completes access.
From technique scheme, can find out, the connecting system that the present embodiment provides can be without artificial interference, can automatically to the frequency of the voltage of static reacance generator, amplitude and phase place, regulate, when frequency, amplitude and the phase place of the voltage with high voltage bus is consistent, can automatically static reacance generator be accessed to electrical network.And can avoid electrical network and static reacance generator itself to cause rush of current.
Embodiment five
The structure chart of the connecting system of a kind of static reacance generator that Fig. 5 provides for the another embodiment of the application.
As shown in Figure 5, the connecting system that the present embodiment provides is on the basis of a upper embodiment, to have set up display unit 80, for receive and show frequency, amplitude and the phase place of the voltage of the high voltage bus that first sensor 30 is exported from comparison means 50, and frequency, amplitude and the phase place of the output voltage of the static reacance generator 20 of the second transducer 40 outputs.
Finally, also it should be noted that, in this article, relational terms such as the first and second grades is only used for an entity or operation to separate with another entity or operating space, and not necessarily requires or imply and between these entities or operation, have the relation of any this reality or sequentially.And, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thereby the process, method, article or the equipment that make to comprise a series of key elements not only comprise those key elements, but also comprise other key elements of clearly not listing, or be also included as the intrinsic key element of this process, method, article or equipment.The in the situation that of more restrictions not, the key element being limited by statement " comprising ... ", and be not precluded within process, method, article or the equipment that comprises key element and also have other identical element.
In this specification, each embodiment adopts the mode of going forward one by one to describe, and each embodiment stresses is the difference with other embodiment, between each embodiment identical similar part mutually referring to.
Above-mentioned explanation to the disclosed embodiments, makes professional and technical personnel in the field can realize or use the application.To the multiple modification of these embodiment, will be apparent for those skilled in the art, General Principle as defined herein can be in the situation that do not depart from the application's spirit or scope, realization in other embodiments.Therefore, the application will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. a connecting system for static reacance generator, is characterized in that, comprising:
Current-limiting resistance, one end of described current-limiting resistance is connected with the high voltage bus of electrical network, and the other end is connected with the series reactor of described static reacance generator;
Closing switch, the two ends of described closing switch are connected with the two ends of described series resistance respectively;
First sensor, for detection of the voltage parameter of described high voltage bus, and as the first voltage parameter;
The second transducer, for detection of the voltage parameter of described power take-off, and as second voltage parameter;
Described voltage parameter comprises frequency, amplitude and the phase place of voltage;
Comparison means, for described the first voltage parameter and described second voltage parameter are contrasted, output regulation signal when both are inconsistent is exported switching signal when both are consistent;
Described switching signal is as closing switch is carried out to closed foundation.
2. connecting system as claimed in claim 1, is characterized in that, described closing switch is contactor or circuit breaker.
3. connecting system as claimed in claim 1, is characterized in that, described first sensor is voltage transformer.
4. connecting system as claimed in claim 1, is characterized in that, described the second transducer is voltage transformer.
5. the connecting system as described in claim 1～4, is characterized in that, also comprises:
Power network switch, is arranged between described series resistance and described bus, for being switched on or switched off being electrically connected between described series resistance and described bus.
6. connecting system as claimed in claim 5, is characterized in that, described power network switch is contactor or circuit breaker.
7. connecting system as claimed in claim 6, is characterized in that, also comprises:
Closing device is closed for control described closing switch according to described switching signal.
8. connecting system as claimed in claim 7, is characterized in that, also comprises:
Regulating system, for the master control system output adjusting command to described static reacance generator according to described conditioning signal, described adjusting command is used for controlling described master control system described second voltage parameter is regulated.
9. connecting system as claimed in claim 8, is characterized in that, described regulating system is connected by optical fiber with described master control system.
10. connecting system as claimed in claim 9, is characterized in that, also comprises:
Display unit, for showing described the first voltage parameter and described second voltage parameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310746263.2A CN103701139B (en) | 2013-12-30 | 2013-12-30 | The connecting system of a kind of static reacance generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310746263.2A CN103701139B (en) | 2013-12-30 | 2013-12-30 | The connecting system of a kind of static reacance generator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103701139A true CN103701139A (en) | 2014-04-02 |
| CN103701139B CN103701139B (en) | 2016-06-15 |
Family
ID=50362584
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310746263.2A Active CN103701139B (en) | 2013-12-30 | 2013-12-30 | The connecting system of a kind of static reacance generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103701139B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1387461A1 (en) * | 2002-07-31 | 2004-02-04 | ASIRobicon S.p.A. | Static VAR (reactive power) compensator for A.C. railway networks |
| WO2006022576A1 (en) * | 2004-08-27 | 2006-03-02 | Abb Research Ltd | Electric power flow control |
| CN101051751A (en) * | 2007-05-14 | 2007-10-10 | 上海艾帕电力电子有限公司 | Active power filter including power unit and its control method |
| US20100001698A1 (en) * | 2008-07-02 | 2010-01-07 | American Superconductor Corporation | Static VAR Corrector |
| CN103248060A (en) * | 2013-05-17 | 2013-08-14 | 辽宁意思德电气有限公司 | Capacity expanding device and method for static var generator (SVG) |
| CN203151111U (en) * | 2013-03-29 | 2013-08-21 | 华电瑞能(北京)电力技术有限公司 | SVG high voltage dynamic reactive compensation and harmonic wave treatment apparatus |
| CN103326366A (en) * | 2013-06-28 | 2013-09-25 | 中国西电电气股份有限公司 | Three-single-phase-three-wire-system parallel APF/SVG device |
| CN203787962U (en) * | 2013-12-30 | 2014-08-20 | 海南金盘电气有限公司 | Access system for static var generator |
-
2013
- 2013-12-30 CN CN201310746263.2A patent/CN103701139B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1387461A1 (en) * | 2002-07-31 | 2004-02-04 | ASIRobicon S.p.A. | Static VAR (reactive power) compensator for A.C. railway networks |
| WO2006022576A1 (en) * | 2004-08-27 | 2006-03-02 | Abb Research Ltd | Electric power flow control |
| CN101051751A (en) * | 2007-05-14 | 2007-10-10 | 上海艾帕电力电子有限公司 | Active power filter including power unit and its control method |
| US20100001698A1 (en) * | 2008-07-02 | 2010-01-07 | American Superconductor Corporation | Static VAR Corrector |
| CN203151111U (en) * | 2013-03-29 | 2013-08-21 | 华电瑞能(北京)电力技术有限公司 | SVG high voltage dynamic reactive compensation and harmonic wave treatment apparatus |
| CN103248060A (en) * | 2013-05-17 | 2013-08-14 | 辽宁意思德电气有限公司 | Capacity expanding device and method for static var generator (SVG) |
| CN103326366A (en) * | 2013-06-28 | 2013-09-25 | 中国西电电气股份有限公司 | Three-single-phase-three-wire-system parallel APF/SVG device |
| CN203787962U (en) * | 2013-12-30 | 2014-08-20 | 海南金盘电气有限公司 | Access system for static var generator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103701139B (en) | 2016-06-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105870975B (en) | A kind of micro-capacitance sensor structure and its electric energy quality control method | |
| CN103558536B (en) | The circuit of test series capacitor tolerance capability of overload and method of work thereof | |
| CN110854936B (en) | Power frequency oscillation analysis method for multi-virtual synchronous generator grid-connected system | |
| Wahab et al. | Voltage sag and mitigation using dynamic voltage restorer (DVR) system | |
| CN106019005B (en) | Test system and method for simulating transient ground potential rise | |
| CN108695899A (en) | Photovoltaic parallel in system and its control method and square formation unit are pressed in one kind | |
| CN111579892B (en) | Test system and method for cascaded SVG power module | |
| CN106374507A (en) | Three-phase common compensation intelligent synchronous switch and control protection method thereof | |
| CN203787962U (en) | Access system for static var generator | |
| Delfino et al. | Power quality improvement in transmission and distribution networks via synchronous switching | |
| CN103281001B (en) | Adjustable high-voltage square-wave pulsed power supply used for ZnO performance test | |
| Haque et al. | Response of a bidirectional ev charger to selected grid disturbances | |
| CN101286639A (en) | Continuously adjustable reactive power compensator with low cost | |
| CN103701139A (en) | Access system for static var generator | |
| Patel et al. | Simulation and analysis for real and reactive power control with series type facts controller | |
| CN104184444A (en) | Serial/parallel-type thyristor switch self-triggering method | |
| CN203502551U (en) | Circuit capable of testing overloading tolerance capability of capacitors connected in series | |
| CN203519775U (en) | Circuit for testing series capacitor overload tolerance capacity | |
| Häger et al. | Hardware model of a dynamic power flow controller | |
| CN106970308A (en) | A kind of Test Device of Capacitor Pulse Voltage and method | |
| Aho et al. | Power quality support for industrial load using hybrid svc | |
| CN205301544U (en) | Photovoltaic inverter voltage rises test system suddenly | |
| CN203337698U (en) | Adjustable high voltage square wave pulse power supply for ZnO performance test | |
| CN103558537B (en) | The circuit of test series capacitor tolerance capability of overload and method of work thereof | |
| CN109921642A (en) | A kind of voltage changer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 570216 7 Haikou Free Trade Zone, 168 Nanhai Road, Haikou, Hainan. Patentee after: Hainan Jinpan intelligent Polytron Technologies Inc Address before: 570216 7 Haikou Free Trade Zone, 168 Nanhai Road, Haikou, Hainan. Patentee before: Hainan Jinpan Electric Co., Ltd. |
|
| CP01 | Change in the name or title of a patent holder |