CN102255378A - Operation judging method for intelligent backup power automatic switching device - Google Patents
Operation judging method for intelligent backup power automatic switching device Download PDFInfo
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- CN102255378A CN102255378A CN2011102152344A CN201110215234A CN102255378A CN 102255378 A CN102255378 A CN 102255378A CN 2011102152344 A CN2011102152344 A CN 2011102152344A CN 201110215234 A CN201110215234 A CN 201110215234A CN 102255378 A CN102255378 A CN 102255378A
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- main supply
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- automatic switching
- supply circuit
- backup power
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Abstract
The invention provides an operation judging method for an intelligent backup power automatic switching device, and the method comprises the following steps: the intelligent backup power automatic switching device detects a voltage value of each bus and confirms a voltage-loss bus and a non-voltage-loss bus; the intelligent backup power automatic switching device detects a current value of each main supply line and judges whether the current value of the main supply line is less than a preset value; if yes, the main supply line is confirmed as a suspected fault main supply line, and if not, the previous step is returned; the intelligent backup power automatic switching device judges whether the bus connected to the suspected fault main supply line is a to-be-accessed voltage-loss bus; if yes, the suspected fault main supply line is confirmed as a fault main supply line, and if not, the previous step is returned; the intelligent backup power automatic switching device cuts off the fault main supply line and detects and confirms the cut fault main supply line; and the intelligent backup power automatic switching device sends a switch-on order to a bus connection switch, so as to connect the to-be-accessed voltage-loss bus to the non-voltage-loss bus. The operation judging method provided by the invention has the advantages of being scientific, rigorous, malfunction-free, safe and effective.
Description
Technical field
The present invention relates to a kind of intelligent backup auto-activating device, specifically, related to a kind of action determination methods of intelligent backup auto-activating device.
Background technology
In order to improve power supply reliability, intelligent backup power automatic switching has been installed all in the transformer station of each electric pressure and the power plant.The intelligent backup auto-activating device of existing maturation only is adapted to transformer station and power plant two back into the line power supply, to 3 times and above incoming power, its general solution is: increase intelligent backup auto-activating device quantity, N bar inlet wire needs to install N and overlaps intelligent backup auto-activating device, has so not only increased investment, and, N overlaps intelligent backup auto-activating device and also exists complicated cooperation strategy, that is, complicated original simple question; Another kind of solution is: developed one and overlapped the intelligent backup auto-activating device that can satisfy N bar inlet wire, and the 220KV grade that takes the lead at south electric network is used, its course of action is: bus loss of pressure, the intelligence backup auto-activating device starts, judge that all are main for line current,, really appoint by switching value auxiliary node position really to disconnect when current value then directly excises this main circuit that supplies less than setting, send the order of bus connection switch combined floodgate, bus has normal voltage again; This device can adapt to many inlet wires, and wiring is also simple, decompression bus of not excessive existence, and the main electric current for circuit of giving another bussed supply the mistake excision can occur during also less than set-point, causes the risk of double-bus decompression then.
Summary of the invention
The objective of the invention is at the deficiencies in the prior art, a kind of scientific and precise, no misoperation, the action determination methods of intelligent backup auto-activating device safely and effectively are provided.
To achieve these goals, the technical solution adopted in the present invention is: a kind of action determination methods of intelligent backup auto-activating device, and this method may further comprise the steps:
Step 1, backup auto-activating device constantly detect the magnitude of voltage of each bar bus, and judge decompression bus and non-decompression bus;
Step 2, described intelligent backup power automatic switching detect the current value of each bar main supply circuit, and whether the current value of judging the main supply circuit less than set-point, if then this main supply circuit is fault suspicion main supply circuit, otherwise, return step 2;
Whether the bus of step 3, the judgement of described intelligent backup power automatic switching and described fault suspicion main supply connection is decompression bus to be accessed, if then described fault suspicion main supply circuit is fault main supply circuit, otherwise, return step 2;
Step 4, described intelligent backup power automatic switching excise described fault main supply circuit;
Step 5, described intelligent backup power automatic switching detect described fault main supply circuit, and confirm to have excised described fault main supply circuit;
Step 6, described intelligent backup auto-activating device send the order of closing a floodgate to bus connection switch, are used for described decompression bus to be accessed is connected with described non-decompression bus.
Utilize this method can effectively solve mistake and cut problem, also can distinguish the main supply circuit of be out of order bus and non-fault bus, the criterion that proposes simultaneously can be avoided the many problems of conventional design node wiring widely.
Embodiment
Below by embodiment, technical scheme of the present invention is described in further detail.
A kind of action determination methods of intelligent backup auto-activating device, this method may further comprise the steps:
Step 1, backup auto-activating device constantly detect the magnitude of voltage of each bar bus, and judge decompression bus and non-decompression bus;
Step 2, described intelligent backup power automatic switching detect the current value of each bar main supply circuit, and whether the current value of judging the main supply circuit less than set-point, if then this main supply circuit is fault suspicion main supply circuit, otherwise, return step 2;
Whether the bus of step 3, the judgement of described intelligent backup power automatic switching and described fault suspicion main supply connection is decompression bus to be accessed, if then described fault suspicion main supply circuit is fault main supply circuit, otherwise, return step 2;
Step 4, described intelligent backup power automatic switching excise described fault main supply circuit;
Step 5, described intelligent backup power automatic switching detect described fault main supply circuit, and confirm to have excised described fault main supply circuit;
Step 6, described intelligent backup auto-activating device send the order of closing a floodgate to bus connection switch, are used for described decompression bus to be accessed is connected with described non-decompression bus.
Specifically, No. 2 bus loss of pressure, intelligent backup power automatic switching start, and whether the current value of judging each bar main supply circuit is less than set-point; When the current value of judging certain bar main supply circuit during less than set-point, then continue to judge whether the bus of this main supply connection is the decompression bus that will insert, and by this process, can effectively distinguish the main supply circuit of be out of order bus and non-fault bus; When the main supply circuit of determining No. 2 buses need to excise, then excise the main supply circuit of No. 2 buses, can effectively get rid of the problem of by mistake being cut less than set-point because of the current value of the main supply circuit of No. 1 bus, avoid causing the accident of double-bus decompression; When the main supply circuit of confirming to have excised No. 2 buses, then bus connection switch closes a floodgate, and No. 2 bus has normal voltage again, when be checked through No. 2 busbar voltages normal after, intelligent backup power automatic switching is got back to the preparatory stage.
Claims (1)
1. the action determination methods of an intelligent backup auto-activating device is characterized in that, this method may further comprise the steps:
Step 1, backup auto-activating device constantly detect the magnitude of voltage of each bar bus, and judge decompression bus and non-decompression bus;
Step 2, described intelligent backup power automatic switching detect the current value of each bar main supply circuit, and whether the current value of judging the main supply circuit less than set-point, if then this main supply circuit is fault suspicion main supply circuit, otherwise, return step 2;
Whether the bus of step 3, the judgement of described intelligent backup power automatic switching and described fault suspicion main supply connection is decompression bus to be accessed, if then described fault suspicion main supply circuit is fault main supply circuit, otherwise, return step 2;
Step 4, described intelligent backup power automatic switching excise described fault main supply circuit;
Step 5, described intelligent backup power automatic switching detect described fault main supply circuit, and confirm to have excised described fault main supply circuit;
Step 6, described intelligent backup auto-activating device send the order of closing a floodgate to bus connection switch, are used for described decompression bus to be accessed is connected with described non-decompression bus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102152344A CN102255378A (en) | 2011-07-29 | 2011-07-29 | Operation judging method for intelligent backup power automatic switching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102152344A CN102255378A (en) | 2011-07-29 | 2011-07-29 | Operation judging method for intelligent backup power automatic switching device |
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| Publication Number | Publication Date |
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| CN102255378A true CN102255378A (en) | 2011-11-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011102152344A Pending CN102255378A (en) | 2011-07-29 | 2011-07-29 | Operation judging method for intelligent backup power automatic switching device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110544176A (en) * | 2019-08-12 | 2019-12-06 | 广东电网有限责任公司 | Method for switching failure of distribution transformer voltage loss information backward-pushing switch of OCS (online charging system) master station system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200979999Y (en) * | 2006-11-30 | 2007-11-21 | 深圳市华力特电气有限公司 | A backup auto-activating device |
| CN102097856A (en) * | 2011-01-18 | 2011-06-15 | 北京四方继保自动化股份有限公司 | Spare power automatic switching programmable logic control method for plant supply of power station |
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2011
- 2011-07-29 CN CN2011102152344A patent/CN102255378A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200979999Y (en) * | 2006-11-30 | 2007-11-21 | 深圳市华力特电气有限公司 | A backup auto-activating device |
| CN102097856A (en) * | 2011-01-18 | 2011-06-15 | 北京四方继保自动化股份有限公司 | Spare power automatic switching programmable logic control method for plant supply of power station |
Non-Patent Citations (2)
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| 何修亮: "备用电源自投装置在降压站的应用", 《电气时代》 * |
| 赵连斌等: "自适应微机型备用电源自投装置的改进应用", 《甘肃科技》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110544176A (en) * | 2019-08-12 | 2019-12-06 | 广东电网有限责任公司 | Method for switching failure of distribution transformer voltage loss information backward-pushing switch of OCS (online charging system) master station system |
| CN110544176B (en) * | 2019-08-12 | 2021-09-21 | 广东电网有限责任公司 | Method for switching failure of distribution transformer voltage loss information backward-pushing switch of OCS (online charging system) master station system |
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Application publication date: 20111123 |