CN202837462U - Single-phase earth fault detecting system based on automatic voltage control - Google Patents
Single-phase earth fault detecting system based on automatic voltage control Download PDFInfo
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- CN202837462U CN202837462U CN 201220527930 CN201220527930U CN202837462U CN 202837462 U CN202837462 U CN 202837462U CN 201220527930 CN201220527930 CN 201220527930 CN 201220527930 U CN201220527930 U CN 201220527930U CN 202837462 U CN202837462 U CN 202837462U
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Abstract
The utility model relates to a single-phase earth fault detecting system based on automatic voltage control. The single-phase earth fault detecting system comprises an automatic volume control (AVC) server, a supervisory control and data acquisition (SCADA) server, a personal access system (PAS) server, a dispatcher working station and a reactive power optimizing working station. The AVC server, the SCADA server, the PAS server, the dispatcher working station and the reactive power optimizing working station are connected through a dispatching major network switchboard. The single-phase earth fault detecting system is characterized by further comprising an AVC single-phase earth detecting server. The AVC single-phase earth detecting server serves as a client-side of the SCADA server and the PAS server, and is connected with the dispatching major network switchboard. According to the single-phase earth fault detecting system based on the automatic voltage control, the AVC single-phase earth detecting server serves as a client-side of the SCADA server and the PAS server, and is connected with the dispatching major network switchboard, and therefore functions of automatic detection and alarm of a single-phase earth fault are achieved. The timeliness and accuracy that unbalanced voltage of a bus is found by centralized control personnel are improved, equipment failure rate is reduced, accuracy of AVC control is improved, and safe operation of a power grid is guaranteed.
Description
Technical field
The utility model belongs to the power automation field, especially a kind of phase-to-ground fault detection system based on automatic voltage control system.
Background technology
In the empty control of electric power automatic voltage (AVC) system, often singlephase earth fault can occur.Owing to when singlephase earth fault occurs, can't form short-circuit loop, only in system, produce very little zero-sequence current, three-phase line voltage is still symmetrical, temporarily can not affect system's normal operation.If there is system's long-time running of singlephase earth fault, will make the ungrounded weakness that insulate mutually occur to puncture over the ground, cause the two phase ground short circuit accident, in addition, if when arc grounding occurs, also can cause the total system superpotential, and then damage equipment, destroy system safety operation.For example, when substation bus bar generation singlephase earth fault, a lot of grounding alarm signals can not be sent to the scheduling station system in real time, but ungrounded phase voltage can raise and was line voltage this moment, and therefore, there is great potential safety hazard in system's operation.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, a kind of phase-to-ground fault detection system based on automatic voltage control system is provided, and has solved the problem that existing system can't detect singlephase earth fault automatically.
The utility model solves its technical matters and takes following technical scheme to realize:
A kind of phase-to-ground fault detection system based on automatic voltage control system, comprise the AVC server, the SCADA server, the PAS server, yardman's workstation, idle work optimization workstation and scheduling major network switch, the AVC server, the SCADA server, yardman's workstation, the idle work optimization workstation links together by scheduling major network switch, also comprise an AVC single phase earth fault detection server, this AVC single phase earth fault detection server is connected with scheduling major network switch as the client of SCADA server and PAS server, realizes automatic detection and the warning function of singlephase earth fault.
And described AVC single phase earth fault detection server also is provided with AVC single phase earth fault detection workstation, and this AVC single phase earth fault detection workstation is independent workstation, perhaps with yardman's workstation and usefulness, perhaps with idle work optimization workstation and usefulness.
And described scheduling major network switch is the full gigabit layer 3 ethernet switch of H3C S5500.
Advantage of the present utility model and good effect are:
The utility model is connected as the SCADA server AVC single phase earth fault detection server with the PAS server client and with the AVC server, realize automatic detection and the warning function of singlephase earth fault, improved and collected promptness and the accuracy that the control personnel find the bus unbalance voltage, make collection control personnel in time find, process corresponding earth fault, reduced the generation of equipment failure rate, improve the accuracy of AVC control, guaranteed the safe operation of electrical network.
Description of drawings
Fig. 1 is system of the present utility model connection diagram.
Embodiment
Below in conjunction with accompanying drawing the utility model is further described.
A kind of phase-to-ground fault detection system based on automatic voltage control system, as shown in Figure 1, comprise AVC server, SCADA server, PAS server, AVC single phase earth fault detection server, yardman's workstation, idle work optimization workstation and scheduling major network switch, AVC server, SCADA server, PAS server, AVC single phase earth fault detection server, yardman's workstation, idle work optimization workstation link together by scheduling major network switch.In the present embodiment, scheduling major network switch adopts the full gigabit layer 3 ethernet switch of H3C S5500, this switch by port and IP address assignment with AVC server, SCADA server, PAS server, AVC single phase earth fault detection server, yardman's workstation, idle work optimization workstation and switch, AVC server, SCADA server, PAS server, AVC single phase earth fault detection server, yardman's workstation, idle work optimization workstation combine, and realize automatic detection and the warning function of singlephase earth fault.
Innovation in utility model is: increased AVC single phase earth fault detection server in original AVC system, this AVC single phase earth fault detection server has the functions such as fault judgement, analysis, storage, forwarding as the client connecting system of SCADA server and PAS server.In the present embodiment, AVC single phase earth fault detection server adopts IBM systemP6550 server and corresponding detection module software is installed, the result of calculation of one side AVC single phase earth fault detection server by utilizing topology, judge and when fault occurs, preserve the equipment that breaks down, then faulty equipment information is fed back to the AVC server, the alarm notification that receives on the other hand the AVC server is reported to the police, thereby realize the phase-to-ground fault detection function, the workstation of this AVC single phase earth fault detection server can and be used with idle work optimization workstation or yardman's workstation.Scheduling major network switch is produced among the Da Qu for it distributes port and IP address that it is dispensed to.
Principle of work in utility model is: SCADA server by utilizing switch ports themselves also adopts CDT92 communication protocol image data, utilizes simultaneously the data dispatching private network and adopts the IEC104 communication protocol to realize image data and remote control capacitor switch and transformer gear.This phase-to-ground fault detection system utilizes the topological functions of acquisition function and the PAS server of SCADA server: the data that the SCADA server is sent the factory station here are processed accordingly, the PAS server carries out topology calculating according to the annexation at factory station and the data of SCADA server, then failure message is sent to AVC single phase earth fault detection server, the result of calculation of AVC single phase earth fault detection server by utilizing topology, judge and when fault occurs, preserve the equipment that breaks down, then faulty equipment information is fed back to the AVC server, do last respective handling by the AVC server: the AVC server is with faulty equipment locking and alarm notification AVC single phase earth fault detection server.
For example: when singlephase earth fault occured, it was 0 that the SCADA server can collect a certain single-phase voltage; After AVC single phase earth fault detection server got access to this information, associated equipment on bus that single-phase earthing occurs and the bus thereof can the topological relation by the PAS server is preserved and record to AVC single phase earth fault detection server; This moment, AVC single phase earth fault detection server can be reported to the police at yardman's workstation, the prompting yardman has singlephase earth fault to occur, and meanwhile on AVC single phase earth fault detection server and idle work optimization workstation the device latchup that breaks down is fallen to prevent maloperation.When singlephase earth fault occured like this, system in time prompting dispatcher found also to deal with problems, and has also prevented the AVC system misoperation simultaneously, for safe, stable, the economical operation of electrical network provides strong guarantee.
It is emphasized that; embodiment described in the utility model is illustrative; rather than determinate; therefore the utility model comprises and is not limited to the embodiment described in the embodiment; every by those skilled in the art according to other embodiments that the technical solution of the utility model draws, belong to equally the scope of the utility model protection.
Claims (3)
1. phase-to-ground fault detection system based on automatism voltage control, comprise the AVC server, the SCADA server, the PAS server, yardman's workstation, idle work optimization workstation and scheduling major network switch, the AVC server, the SCADA server, yardman's workstation, the idle work optimization workstation links together by scheduling major network switch, it is characterized in that: also comprise an AVC single phase earth fault detection server, this AVC single phase earth fault detection server is connected with scheduling major network switch as the client of SCADA server and PAS server, realizes automatic detection and the warning function of singlephase earth fault.
2. the phase-to-ground fault detection system based on automatism voltage control according to claim 1, it is characterized in that: described AVC single phase earth fault detection server also is provided with AVC single phase earth fault detection workstation, this AVC single phase earth fault detection workstation is independent workstation, perhaps with yardman's workstation and usefulness, perhaps with idle work optimization workstation and usefulness.
3. the phase-to-ground fault detection system based on automatism voltage control according to claim 1, it is characterized in that: described scheduling major network switch is the full gigabit layer 3 ethernet switch of H3C S5500.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220527930 CN202837462U (en) | 2012-10-16 | 2012-10-16 | Single-phase earth fault detecting system based on automatic voltage control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220527930 CN202837462U (en) | 2012-10-16 | 2012-10-16 | Single-phase earth fault detecting system based on automatic voltage control |
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| Publication Number | Publication Date |
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| CN202837462U true CN202837462U (en) | 2013-03-27 |
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| CN 201220527930 Expired - Lifetime CN202837462U (en) | 2012-10-16 | 2012-10-16 | Single-phase earth fault detecting system based on automatic voltage control |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103346579A (en) * | 2013-07-19 | 2013-10-09 | 国家电网公司 | Distribution network reactive power optimization closed loop control system |
| CN103441478A (en) * | 2013-08-21 | 2013-12-11 | 国家电网公司 | AVC system bus-bar one-phase grounding sequence switch-out module and using method thereof |
-
2012
- 2012-10-16 CN CN 201220527930 patent/CN202837462U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103346579A (en) * | 2013-07-19 | 2013-10-09 | 国家电网公司 | Distribution network reactive power optimization closed loop control system |
| CN103441478A (en) * | 2013-08-21 | 2013-12-11 | 国家电网公司 | AVC system bus-bar one-phase grounding sequence switch-out module and using method thereof |
| CN103441478B (en) * | 2013-08-21 | 2016-08-10 | 国家电网公司 | AVC system busbar single-phase earthing sequence draws road module and usage thereof |
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Granted publication date: 20130327 |
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| CX01 | Expiry of patent term |