Method and system for judging whether action of spare power automatic switching is successful or not by remote automatic bus transfer device
A successful technology for standby automatic switching, applied in circuit devices, electrical components, emergency power supply arrangements, etc., can solve the problems of standby automatic switching devices that the voltage has not been restored, and backup switching strategies are unsuccessful
Active Publication Date: 2015-06-03
MEIZHOU POWER SUPPLY BUREAU OF GUANGDONG POWER GRID CORP +1
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[0003] In the series power supply network, for non-open-loop sites, the time delay for waiting for the restoration of voltage after the remote standby self-injection action jumps off the main supply line switch will be different due to the distance from the open-loop site. If a fixed time delay is set, it may occur that the last level of standby automatic switchover device is delayed due to the waiting time reaching the set delay, and because the voltage has not recovered, the standby automatic switchover device judges that the voltage has not recovered and the standby switchover strategy is unsuccessful. Misjudgment
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[0017] The present invention will be described in further detail below in conjunction with the embodiments and accompanying drawings, but the embodiments of the present invention are not limited thereto.
[0018] like figure 1 As shown, it is a schematic flow chart of the method for judging whether the automatic automatic switching device of the remote location of the present invention operates successfully, including the following steps:
[0019] S11, detecting the distance between the open-loop point and the station;
[0020] S12. Calculate and obtain the maximum time delay for judging the success of the standby automatic switching according to the distance and the preset waiting delay setting for judging the standby automatic switching and the preset waiting delay setting for fault removal of adjacent devices;
[0021] S13. According to the maximum time delay, it is judged whether the operation of the standby auto-injection is successful;
[0022] The method for judging w...
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The invention provides a method and a system for judging whether the action of spare power automatic switching is successful or not by a remote automatic bus transfer device. The method comprises the following steps: detecting the inter-station distance of open loop points; calculating according to the distance, the preset judgment spare power automatic switching wait time delay constant value and the preset adjacent device fault removal wait time delay constant value to obtain the maximum time delay when the spare power automatic switching is judged to be successful; judging whether the action of spare power automatic switching is successful or not according to the maximum time delay. After the method and the system are adopted, whether the action of spare power automatic switching is successful or not can be accurately judged by the remote automatic bus transfer device.
Description
technical field [0001] The invention relates to the technical field of backup automatic switching control, in particular to a method for a remote backup automatic switching device for judging whether the backup automatic switching is successful, and a remote backup automatic switching device for judging whether the backup automatic switching is successful. Background technique [0002] In the operation of the power system, in order to solve the power supply reliability of the 110kV power grid with one power supply in series for multiple substations, there is a system consisting of 110kV remote backup self-input devices for self-injection of backup power supplies in series substations, which can isolate faults step by step The method for realizing the self-switching power supply of the standby power supply of the series power substation realizes that the series power supply network restores the power supply of the loss-of-voltage substation to the maximum extent through the ba...
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IPC IPC(8): H02J9/06
Inventor 陈文娟陈锦昌陈兴华黄翠莲廖晓明吴国炳魏存良朱力方邹练辉李继房曹德发甘斌黄海坤熊志宏邬奇林曾招辉张达洄魏煌丘演峰李舒廖明陈增雄林志杭
Owner MEIZHOU POWER SUPPLY BUREAU OF GUANGDONG POWER GRID CORP