Long-term reactive voltage analyzing and optimizing method in power system

A power system and optimization method technology, applied in reactive power compensation, AC network voltage adjustment and other directions, can solve the problem of time and energy difficult to find satisfactory optimization results, failure to find and other problems, to shorten the work process and formulation time, reduce network damage rate, reducing work intensity and stress

Inactive Publication Date: 2012-08-22
GUANGXI UNIV +1
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Problems solved by technology

However, the existing reactive power operation mode of power grids in quite a few areas is affected by the subjective and corresponding objective factors of the planners. In order to obtain satisfactory results, the operators

Method used

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  • Long-term reactive voltage analyzing and optimizing method in power system
  • Long-term reactive voltage analyzing and optimizing method in power system
  • Long-term reactive voltage analyzing and optimizing method in power system

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Embodiment Construction

[0019] The technical solution of the present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.

[0020] Such as figure 1 As shown, a medium- and long-term reactive voltage analysis and optimization method of a power system includes the following steps:

[0021] 1. Perform network equivalent to the tidal current data file;

[0022] 2. Perform reactive power optimization, set equivalent system parameters, set equivalent system control parameters, set equivalent system constraint parameters, set equivalent system DC parameters, equivalent system control strategies, and perform joint optimization;

[0023] 3. If the reactive power optimization converges, output the equivalent system convergence results, the equivalent system control quantity report, the equivalent system constraint report, the equivalent result analysis report, and the power flow data file;

[0024] 4. If reactive power optimization does not conver...

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Abstract

The invention relates to a long-term reactive voltage analyzing and optimizing method in a power system, which comprises a system architecture design part, a data interface module part, a computation module part and a tidal stream data check part. The method analyzes the tidal stream data of the power grid operation and the problems in the long-term operation of the power grid, optimizes the reactive voltage coordination control among different voltage grades, provides a reactive voltage optimized configuration strategy, enhances the voltage qualification rate of the whole power grid, and provides theoretical references for establishing the operating mode of the power grid, thereby ensuring the safe, stable and reliable operation of the power grid.

Description

Technical field: [0001] The invention relates to the field of reactive power analysis and optimization of power systems, in particular to a method for analyzing and optimizing reactive power and voltage in the middle and long term of power systems. Background technique: [0002] The development scale of the modern power system is getting larger and larger, and the interaction between the grid and the grid causes many problems in the stability of the grid. Among them, the reactive power stability of the power system is a very important aspect. There are many reasons for instability in the power system: load increase, generator or line failure, system reactive power shortage, on-load tap changer action, and lack of coordination between various controls and protections, etc. The reactive power, especially the dynamic reactive power support is the main cause of voltage instability. Formulating the reactive power operation mode of the power system is the daily work of the power...

Claims

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Application Information

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IPC IPC(8): H02J3/16
CPCY02E40/30
Inventor 李滨李凌韦化农蔚涛阳育德邓秋荃韦园清覃海志梁振成朱桂兰张弛孙艳刘鹏飞潘艳红
Owner GUANGXI UNIV
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