Grid-shaped electric power system comprehensive domain self-healing method and system
A power system and grid-like technology, applied in the field of automatic protection devices, can solve problems such as low intelligence, fault isolation and slow self-healing speed, achieve high intelligence, solve insufficient compatibility, and reduce power outages Effect
Active Publication Date: 2021-12-03
HM POWER (GUANGDONG) CO LTD
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Problems solved by technology
[0003] The purpose of the present invention is to overcome the shortcomings of low intelligence, fault isolation and slow self-healing speed of the existing power grid control method, and provide a grid-like power system comprehensive domain self-healing method, which can quickly complete fault point repair. isolation, and grid self-healing
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[0029] It is known that the sectional switch plays the role of isolating the fault point of the circuit (isolating the power equipment that needs to be repaired from the live grid); the function of the contact switch is that when the line corresponding to the contact switch fails, if the contact switch is closed, the original corresponding The load of the ring network is transferred to the newly formed ring network; the process of feeding back the control result to affect the current control system is called an open loop; When the circulation is large, it will occupy device resources, so the ring network can be adjusted by setting the open-loop point; the open-loop point switch is used to trigger the ring network to enter the open-loop mode.
[0030] A grid-like power system in this embodiment includes a grid-like grid, line domains, contact domains, and automatic control terminals; the grid-like grid is composed of a number of contact switches connected between adjacent ring n...
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The invention relates to the field of automatic protection devices of electric power systems, and provides a grid-shaped electric power system comprehensive domain self-healing method, which is characterized in that a plurality of interconnection switches are respectively connected between a plurality of adjacent ring network power supply lines to form a grid-shaped power grid; each ring network power supply line is provided with a plurality of section switches and open-loop point switches, and the section switches are in communication connection with an automatic control terminal; the section switches and the open-loop point switches on each ring network power supply line form a line domain, and a plurality of interconnection switches connected with two same ring network power supply lines form an interconnection domain; the automatic control terminal determines the position of a fault point according to fault signals, detected by the section switches, in the line domain, the section switches at the two ends of the fault point are turned on, and an open loop point switch of the line domain is turned on to enable the system to be self-healed; the invention further provides a system applying the method. According to the grid-shaped electric power system comprehensive domain self-healing method and system, the isolation of fault points and self-healing of a power grid can be rapidly completed.
Description
technical field [0001] The invention relates to the field of automatic protection devices for power systems, in particular to a method and system for grid-like power system comprehensive self-healing. Background technique [0002] With the advent of the intelligent era, the domestic power industry is gradually developing towards intelligence, and the power grid control method is also developing from the traditional control mode to the intelligent control mode. The traditional power grid is mainly based on a multi-ring network structure (two power Connection) of three supplies and one backup (three power supply lines and one backup line) mode setting, when a fault point occurs in the main line of one of the power supplies, first stop the corresponding main line, enable the line of the backup power supply, and then Troubleshooting and repairing the main line of the fault point. The above-mentioned power grid and its control method are not flexible enough, especially in emergen...
Claims
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IPC IPC(8): H02J13/00H02H7/26H02H7/28
CPCH02J13/0004H02J13/00002H02H7/262H02H7/263H02H7/28Y04S10/20
Inventor 涂景添麦建国李家良李恒昭
Owner HM POWER (GUANGDONG) CO LTD