A method for generation of regional power grid load transfer strategy to prevent cascading overload
A technology of regional power grid and load transfer, applied in electrical components, circuit devices, AC network circuits, etc., can solve the problems of cumbersome calculation process, not taking into account the constraints of network structure and equipment capacity, etc., to solve the problem of cumbersome calculation process. Effect
Active Publication Date: 2022-05-13
CHINA ELECTRIC POWER RES INST +2
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[0006] This application provides a method for generating regional power grid load transfer strategy to prevent chain overload, which solves the problem that the current regional power grid load transfer method is cumbersome in calculation process and does not take into account the constraints of network structure and equipment capacity
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[0043]In the following description, numerous specific details are set forth in order to provide a thorough understanding of the application. However, the present application can be implemented in many other ways different from those described here, and those skilled in the art can make similar promotions without violating the connotation of the present application. Therefore, the present application is not limited by the specific implementation disclosed below.
[0044] Please see figure 1 , figure 1 It is a schematic diagram of the process of generating a regional power grid load transfer strategy to prevent cascading overload provided by the embodiment of the present application. The following is combined with figure 1 The method provided in the embodiment of the present application will be described in detail.
[0045] In step S101, an online security analysis is performed on the regional power grid to determine whether the active power of main transformers and lines with...
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The invention discloses a method for generating a regional power grid load transfer strategy for preventing chain overload, which includes: performing an online security analysis on the regional power grid, and judging whether the active power of main transformers and lines within the range of the regional power grid exceeds the limit value; If the active power of the internal main transformer and line exceeds the limit value, the regional power grid will be partitioned and the load transfer measures available in the substation will be searched; the sensitivity of the over-limit equipment will be evaluated through the load transfer measures, and the The impact of the loop-closing operation of the load transfer measures on the power grid is evaluated; and then the chain reaction of the load transfer measures is evaluated to generate a grid load transfer strategy, which solves the cumbersome calculation process of the current regional power grid load transfer method. And the constraints of network structure and equipment capacity.
Description
technical field [0001] This application relates to the field of online security and stability calculation and analysis of power systems, and specifically relates to a method for generating load transfer strategies for regional power grids to prevent cascading overloads. Background technique [0002] With the adjustment and development of the regional power grid and the further development of the commercial operation of the power grid, the scheduling and control of the power system has become more and more complicated. Therefore, higher and higher requirements are put forward for the reliability of power supply, which also makes the N-1 function of static security analysis more and more widely used in regional power grids. [0003] The characteristic of the regional power grid is that its jurisdiction usually includes the main transformer (hereinafter referred to as the main transformer) of 220kV and below, the line and some 500kV main transformers. Among them, 220kV lines g...
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IPC IPC(8): H02J3/00
Inventor 吕颖沙立成解梅贾育培高强孙鹤林韩保军于之虹闫殿涛苏国杰杨宵鲁忠燕王丹秦军伟李涛付磊雷一鸣田晓雷郑书洧管树威
Owner CHINA ELECTRIC POWER RES INST