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Configuration method of reactive equipment of power grid based on reactive power balance indexes of partitions

A power grid and index technology, applied in the direction of reactive power adjustment/elimination/compensation, circuit devices, electrical components, etc., can solve the problem that it is difficult for humans to determine the coordination control area intuitively, so as to improve the unreasonable configuration and improve the effect , to meet the effect of power grid security and economic operation

Active Publication Date: 2019-10-15
YUNNAN POWER GRID CO LTD KUNMING POWER SUPPLY BUREAU
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Problems solved by technology

[0011] For dozens of 220kV substations brought out, it is difficult to manually determine the coordination control area intuitively; and as the operation mode changes, the coordination control area will also change

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  • Configuration method of reactive equipment of power grid based on reactive power balance indexes of partitions
  • Configuration method of reactive equipment of power grid based on reactive power balance indexes of partitions
  • Configuration method of reactive equipment of power grid based on reactive power balance indexes of partitions

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Embodiment Construction

[0062] The present invention proposes a method for configuring reactive power equipment in a power grid based on a partitioned reactive power balance index, which will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0063] The invention proposes a grid reactive equipment configuration method based on the zone reactive power balance index, which involves the automatic zone of the 500kV-220kV grid (not involving the zone below 220), in the automatic voltage control system of the grid dispatching center, by searching the grid topology Automatically form 500kV-220kV partitions (there may be one or more partitions, and when there are multiple partitions, the following operations are used for each partition.), based on the formed 500kV-220kV partitions, the overall process of the method is as follows figure 2 shown, including the following steps:

[0064] 1) Obtain the reactive power index of the partition;

[0065] 1-...

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Abstract

The invention provides a configuration method of reactive equipment of a power grid based on the reactive power balance indexes of partitions, which belongs to the technical field of automatic power system voltage control. The method includes the following steps: calculating the reactive power indexes of 500kV-200kV control partitions based on the 500kV-220kV control partitions; calculating and analyzing the capacitive and inductive balance indexes of the 500kV-220kV control partitions; and finally, making a reactive power allocation decision for the 500kV-220kV control partitions according tothe indexes. The method of the invention can avoid the problem that unreasonable configuration of reactive power equipment affects the AVC control effect or even threatens the voltage stability of the power grid. Through the method of the invention, the reactive power compensation capacity of control partition configuration can be obtained to meet the requirement for safe and economic operation of the power grid.

Description

technical field [0001] The invention belongs to the technical field of automatic voltage control of electric power systems, and in particular relates to a method for configuring reactive power equipment in a power grid based on a partitioned reactive power balance index. Background technique [0002] Automatic Voltage Control (hereinafter referred to as AVC, Automatic Voltage Control) system is an important means to achieve power grid security (increase voltage stability margin), economy (reduce network loss), and high-quality (increase voltage pass rate) operation. Control the reactive power output of generators, transformer taps and reactive power compensation equipment to achieve a reasonable distribution of reactive power and voltage in the grid. [0003] So far, there are three main modes of mainstream automatic voltage control in the world: [0004] The first is the secondary control represented by the German RWE power company. There is no so-called partition control,...

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Application Information

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IPC IPC(8): H02J3/18
CPCH02J3/1871Y02E40/10Y02E40/30
Inventor 朱涛魏靖李昆华王杰鸿周艳平辛平安姚朝龙玉英汤磊王志南章平
Owner YUNNAN POWER GRID CO LTD KUNMING POWER SUPPLY BUREAU
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