Load characteristic considered power grid dynamic reactive power optimization system and method

A technology of load characteristics and optimization methods, applied in reactive power compensation, reactive power adjustment/elimination/compensation, etc.

Active Publication Date: 2013-05-29
LIAONING ELECTRIC POWER COMPANY LIMITED POWER SCI RES INSTION +2
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Researchers at home and abroad have proposed various reactive power optimization algorithms. Most of these methods regard the reactive power optimization problem as a mathematical problem, establish variables, and establish a mathematical model. They belong to static reactive power optimization. Research on dynamic reactive power compensation optimization method of actual system

Method used

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  • Load characteristic considered power grid dynamic reactive power optimization system and method
  • Load characteristic considered power grid dynamic reactive power optimization system and method
  • Load characteristic considered power grid dynamic reactive power optimization system and method

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Embodiment 1

[0067] The present invention is a power grid dynamic reactive power optimization system and method considering load characteristics, wherein the hardware real-time control equipment of the power grid dynamic reactive power optimization system includes: a load state collector for collecting power grid load characteristic data; Analyze and complete the load dynamic reactive power regulation controller that accurately classifies the load; the load dynamic reactive power actuator that controls the operation of the power system according to the optimized variables output by the load regulation controller. Among them, one port of the load state collector is connected to the load dynamic reactive power adjustment controller, and the collected and processed grid load characteristics are transmitted to the load dynamic reactive power controller; the load dynamic reactive power controller is connected to the load dynamic reactive power actuator, It is used to guide the operation of the p...

Embodiment 2

[0141] Combine below Figure 1-Figure 4 , the specific implementation of the present invention will be further described. It should be emphasized that the following description is exemplary only, and is not intended to limit the scope of the invention and its application.

[0142]In this embodiment, Anshan power grid is taken as the research target power grid. The main situation of Anshan Power Grid is: Anshan Power Supply Bureau Xiuyan Pianling 66kV Substation provides two 66kV incoming lines from the superior, and after two main transformers (1# main transformer capacity is 16MVA, 2# main transformer capacity is 20MVA), it is reduced to Two sections of 10kV busbar, 10kV busbar bus connection is closed and operated to supply power to the lower load.

[0143] The optimization method for the above-mentioned dynamic reactive power control strategy considering multiple objectives includes the following steps:

[0144] Step 1: Read the actual power grid variable parameter data ...

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Abstract

The invention relates to the field of electrical power system dynamic reactive power control, in particular to a load characteristic considered power grid dynamic reactive power optimization system and method. One port of a load state collector is connected to a load dynamic reactive power regulation controller, collected and processed power grid load characteristics are transmitted to the load dynamic reactive power controller, the load dynamic reactive power controller is connected with a load dynamic reactive power executor, and the load dynamic reactive power executor is used for guiding an electrical power system to operate according to optimizing results of the dynamic reactive power controller. According to the load characteristic considered power grid dynamic reactive power optimization system and method, data required by reactive power optimizing are directly read from an actual power grid, system hardware investments are effectively saved, characteristic variables of factors of load characteristics, load voltage fluctuation and the like are extracted, real-time changing conditions of the power grid are exactly reflected, and the computing complexity is effectively reduced. Powerful scientific theory supports are provided for the field of dynamic reactive power compensation in the future, dynamic reactive power compensation of the power grid is achieved with the minimum reactive power compensation quantity, and thereby enormous economic benefits are achieved.

Description

Technical field [0001] The invention relates to the field of dynamic reactive power control of power systems, in particular to a system and method for dynamic reactive power optimization of a power grid considering load characteristics. By simulating and calculating each section of the actual power grid, fully considering the reactive power characteristics of the load in the actual power grid, analyzing the voltage control of each node at each moment in real time, and adopting a multi-objective dynamic reactive power optimization method with innovative ideas to realize the power grid. The optimization of dynamic reactive power compensation control strategy is of great significance to improve the safety and economy of power system operation. Background technique [0002] The power system reactive power optimization problem is one of the important contents of the power system optimization problem research. Reactive power optimization of the power system, that is, on the premi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/18
CPCY02E40/30
Inventor 张强王超朱钰刘劲松王刚张涛宋云东李家珏
Owner LIAONING ELECTRIC POWER COMPANY LIMITED POWER SCI RES INSTION
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