CN202424307U - 220 kV intelligent standby power supply auto-switching system - Google Patents
220 kV intelligent standby power supply auto-switching system Download PDFInfo
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- CN202424307U CN202424307U CN2012200544100U CN201220054410U CN202424307U CN 202424307 U CN202424307 U CN 202424307U CN 2012200544100 U CN2012200544100 U CN 2012200544100U CN 201220054410 U CN201220054410 U CN 201220054410U CN 202424307 U CN202424307 U CN 202424307U
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Abstract
The utility model discloses a 220 kV intelligent standby power supply auto-switching system. The 220 kV intelligent standby power supply auto-switching system is characterized by comprising a standby auto-switching control device, a double-bus, a bypass and 6 220 kV output circuits and a detection unit, wherein the 220 kV output circuits are provided with circuit switches between the double-bus and the bypass; the bypass is connected with the double-bus through a bypass switch; and a bus connected switch is connected between the two buses of the double-bus. The power supply auto-switching system for the 220 kV intelligent device, disclosed by the utility model, can detect various electric quantity parameters of the whole auto-switching system through the detection unit and automatically judge whether the auto-switching charging condition or auto-switching starting condition is satisfied; when a certain condition is satisfied, the standby auto-switching control device controls corresponding switches to realize the auto-switching charging or starting actions; the working way is effective on various possible situations in practical operation, has strong adaptability and can efficiently improve power supply reliability of an electric grid.
Description
Technical field
The utility model relates to electric power system and technical field of automation, is specifically related to a kind of 220kV intelligent standby power switchover system.
Background technology
Along with the high speed development of power supply in the electrical network and power grid construction, the breaking current problem of electrical network is increasingly serious, significantly exceeds standard the problem but also the comparatively serious electric network composition property of existence is rationed the power supply at the short circuit current that meets center 220kV and above transformer station.In order effectively to reduce short circuit current; Optimizing trend distributes; Have to take the to unlink supply power mode of subregion in increasing zone; Though realize that through modes such as substation bus bar fanout operation, interconnection stand-by heats switched-mode power supply can reduce the short circuit current problem of associated stations effectively, reduced the power supply reliability of website, brought risk in various degree to operation of power networks.
Summary of the invention
To the problems referred to above, the utility model provides a kind of good 220kV intelligent standby power switchover system of power supply reliability, system operation mode adaptability that can improve the subregion website.
The utility model is that the technical scheme that its technical problem of solution is adopted is:
220kV intelligent standby power switchover system; Comprise prepared auto restart control device, double-bus, bypass, 6 times 220kV outlet lines and the detecting unit that circuit working state is detected; The 220kV outlet line is connected with bypass with double-bus respectively; The 220kV outlet line is provided with line switching between double-bus and bypass, bypass is connected with double-bus through by-pass switch, is connected with bus connection switch between two buses of double-bus; The output of detecting unit is connected with the prepared auto restart control device, and the control end of line switching, by-pass switch and bus connection switch links to each other with the prepared auto restart control device respectively.
As preferred embodiment; Said detecting unit comprises analog quantity detecting unit, switching value input unit and block signal detecting unit, and the output of analog quantity detecting unit, switching value input unit and block signal detecting unit is connected with the prepared auto restart control device respectively.
The beneficial effect of the utility model is: the utility model can detect the various electrical parameters in the whole self-operation system through detecting unit; Automatically judge whether to satisfy and haul oneself willingly into charge condition or haul oneself willingly into entry condition; After satisfying certain condition, the prepared auto restart control device is controlled corresponding switch and is realized hauling oneself willingly into charging or start action, and above-mentioned working method all can play a role for various possible situation in the actual motion; Adaptability is strong, can improve the reliability of mains supply effectively.
Description of drawings
Further explain below in conjunction with accompanying drawing and embodiment:
Fig. 1 is the wiring schematic diagram of the utility model.
Embodiment
With reference to Fig. 1; The 220kV intelligent standby power switchover system of the utility model; Comprise prepared auto restart control device, double-bus IM and IIM, bypass PM, 6 times 220kV outlet lines (circuit 1-circuit 6) and the detecting unit that circuit working state is detected; The 220kV outlet line is connected with double-bus IM, IIM and bypass PM respectively; The 220kV outlet line is provided with line switching 1DL-6DL between double-bus IM, IIM and bypass PM, bypass is connected with double-bus IM, IIM through by-pass switch PDL, is connected with bus connection switch MDL between two bus IM of double-bus, the IIM; The output of detecting unit is connected with the prepared auto restart control device, and the control end of line switching 1DL-6DL, by-pass switch PDL and bus connection switch MDL links to each other with the prepared auto restart control device respectively.
When the utility model is realized; Detecting unit generally comprises analog quantity detecting unit, switching value input unit and block signal detecting unit, and the output of analog quantity detecting unit, switching value input unit and block signal detecting unit is connected with the prepared auto restart control device respectively.Wherein the analog quantity that detected of analog quantity detecting unit generally comprises: the three-phase current loop of 6 times 220kV circuits and bypass; Three-phase voltage loop after the switching of 6 times 220kV circuits and bypass; The circuit single-phase voltage loop of 6 times 220kV circuits; The three-phase voltage of two sections 220kV buses, etc., promptly; Loops such as these three-phase currents, three-phase voltage, single-phase voltage all are connected with the interface of the input analog amount of prepared auto restart control device, so that can corresponding current value, magnitude of voltage be inputed to the prepared auto restart control device.The switching value that the switching value input unit is detected generally comprises: the 6 times 220kV circuits and the position signalling of by-pass switch, the position signalling of bus connection switch; Promptly; In the prepared auto restart control device, be provided with corresponding switching value interface; As long as there is position of the switch displacement to take place, these position signallings will input to backup auto-activating device through the switching value interface, make the prepared auto restart control device can in time detect these position signallings.The signal that the block signal detecting unit is detected generally comprises: female difference and malfunctioning actuating signal, circuit/bypass hand are jumped signal, outside block signal; Promptly; In the prepared auto restart control device, be provided with the corresponding interlocking signaling interface; As long as these block signals one produce, these block signals will input to the prepared auto restart control device through the corresponding interlocking signaling interface, make the prepared auto restart control device can in time detect these block signals.
The prepared auto restart control device is based on the detection of above-mentioned signal; The system that can judge effectively judges whether automatically to satisfy and hauls oneself willingly into charge condition or haul oneself willingly into entry condition; After satisfying certain condition, the prepared auto restart control device is controlled corresponding switch and is realized hauling oneself willingly into charging or start action.
The execution mode of the utility model is not restricted to the described embodiments, as long as it reaches the technique effect of the utility model with essentially identical means, all should belong to the protection range of the utility model.
Claims (2)
1.220kV intelligent standby power switchover system; It is characterized in that comprising prepared auto restart control device, double-bus, bypass, 6 times 220kV outlet lines and the detecting unit that circuit working state is detected; The 220kV outlet line is connected with bypass with double-bus respectively; The 220kV outlet line is provided with line switching between double-bus and bypass, bypass is connected with double-bus through by-pass switch, is connected with bus connection switch between two buses of double-bus; The output of detecting unit is connected with the prepared auto restart control device, and the control end of line switching, by-pass switch and bus connection switch links to each other with the prepared auto restart control device respectively.
2. 220kV intelligent standby power switchover according to claim 1 system; It is characterized in that said detecting unit comprises analog quantity detecting unit, switching value input unit and block signal detecting unit, the output of analog quantity detecting unit, switching value input unit and block signal detecting unit is connected with the prepared auto restart control device respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200544100U CN202424307U (en) | 2012-02-20 | 2012-02-20 | 220 kV intelligent standby power supply auto-switching system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200544100U CN202424307U (en) | 2012-02-20 | 2012-02-20 | 220 kV intelligent standby power supply auto-switching system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202424307U true CN202424307U (en) | 2012-09-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200544100U Expired - Lifetime CN202424307U (en) | 2012-02-20 | 2012-02-20 | 220 kV intelligent standby power supply auto-switching system |
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| CN (1) | CN202424307U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103117592A (en) * | 2013-02-01 | 2013-05-22 | 广东电网公司东莞供电局 | 220kV spare power automatic switching system and judgment method for bus tie spare power automatic switching mode of spare power automatic switching device |
| CN110601350A (en) * | 2019-09-23 | 2019-12-20 | 云南电网有限责任公司曲靖供电局 | High-voltage self-adaptive area spare power automatic switching system and spare power automatic switching control method thereof |
-
2012
- 2012-02-20 CN CN2012200544100U patent/CN202424307U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103117592A (en) * | 2013-02-01 | 2013-05-22 | 广东电网公司东莞供电局 | 220kV spare power automatic switching system and judgment method for bus tie spare power automatic switching mode of spare power automatic switching device |
| CN103117592B (en) * | 2013-02-01 | 2015-11-18 | 广东电网公司东莞供电局 | 220kV spare power automatic switching system and backup auto-activating device mother are for the determination methods of throwing mode |
| CN110601350A (en) * | 2019-09-23 | 2019-12-20 | 云南电网有限责任公司曲靖供电局 | High-voltage self-adaptive area spare power automatic switching system and spare power automatic switching control method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120905 |
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| CX01 | Expiry of patent term |