A synchronous intelligent detection method, device and system for realizing remote closing and grid connection
A technology of intelligent detection and closing relay, applied in the direction of circuit device, system integration technology, information technology support system, etc., can solve problems such as difficult to achieve, not meet the actual production demand, mismatch of unattended operation mode, etc., and achieve relief Work load, effect of increasing the chance of success
Active Publication Date: 2020-11-06
WENSHAN POWER SUPPLY BUREAU YUNNAN GRID
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Problems solved by technology
[0003] In automatic control applications such as substations, in order to enable on-site operators to keep abreast of the operating parameters and results of the two power grids through the simultaneous report of the measurement and control device, the dispatcher often arranges the grid-connected operation of the power grid to be carried out in a manned substation. With the advancement of unattended and integrated operation of regulation, it will become more and more difficult to arrange grid-connected operations in manned stations.
At the same time, since the synchronous results can only be displayed on the inventive body of the measurement and control device, and all current measurement and control devices do not have the function of sending out the synchronous results, the existing synchronous functions and the unattended operation mode of the substation site are seriously mismatched, which is no longer possible. Meet actual production needs
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[0039] The specific implementation manners disclosed by the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the disclosure of the present invention, and are not intended to limit the disclosure of the present invention.
[0040] The embodiments of the present invention are applied to power grids with weak grids and integrated regulation and control operations or unattended stations that often need to be connected to the grid remotely. In the case of an accident, the remote transmission of the contemporaneous results and the contemporaneous detection function can be automatically started, thereby improving the success rate of remote contemporaneous grid connection for operators, improving the speed of grid accident disposal, and ensuring the safe and stable operation of the grid .
[0041] The disclosure of the present ...
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The invention discloses and relates to a synchronous intelligent detection method, device and system for achieving remote switching-on grid connection, and the method comprises the steps: receiving adetection synchronous triggering signal transmitted by a remote control module; carrying out the synchronous capturing after the detection synchronous triggering signal transmitted by the remote control module is received; transmitting a synchronization failure result to an instruction sending end if the synchronization fails; pre-estimating a time point and / or synchronization point suitable for the grid connection of two sides of a circuit breaker in a future time period, and transmitting a pre-estimating result to a regulation end, so as to enable the regulation end to transmit a remote control instruction according to the pre-estimating result. According to the invention, the method fundamentally solves a problem of the remote synchronous grid connection of the regulation end, and improves the success rate of the remote synchronous grid connection.
Description
technical field [0001] The disclosure of the present invention relates to the field of electric power system automation, in particular, to a synchronous intelligent detection method, device and system for realizing remote closing and grid connection. Background technique [0002] Synchronization is a basic invention function of the measurement and control device. The synchronization function is activated after the measurement and control device receives the closing command from the local or remote place. After the synchronization function is started, the synchronization condition is captured, and the synchronization result is recorded in the form of a report. In the operation record of the measurement and control device. [0003] In automatic control applications such as substations, in order to enable on-site operators to keep abreast of the operating parameters and results of the two power grids through the simultaneous report of the measurement and control device, the dis...
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IPC IPC(8): G01R31/327H02J3/38H02J13/00
CPCG01R31/327H02J3/381H02J13/0017Y02E40/70Y04S10/12
Inventor 杨云翠后跃兴陈耀文张宇超李成文冯勇叶志祥冯跃胡建明严凌坤兰云美张杰
Owner WENSHAN POWER SUPPLY BUREAU YUNNAN GRID