ORP (optimal reactive power) method of distribution network of electric power system

A technology of power system and optimization method, applied in the direction of reactive power compensation, reactive power adjustment/elimination/compensation, etc., can solve problems such as difficulty in achieving diversity and convergence

Inactive Publication Date: 2011-08-31
NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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Problems solved by technology

Although the differential evolution algorithm is simple to operate and easy to implement, and has been well applied to solve the problem of reactive po

Method used

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  • ORP (optimal reactive power) method of distribution network of electric power system
  • ORP (optimal reactive power) method of distribution network of electric power system
  • ORP (optimal reactive power) method of distribution network of electric power system

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Embodiment Construction

[0076] The implementation of the reactive power optimization method of the present invention will be described in detail below in conjunction with the accompanying drawings, taking the modified IEEE14 node system as an example. It should be emphasized that the following description is only exemplary and not intended to limit the scope of the invention and its application.

[0077] figure 1 It is a flow chart of a reactive power optimization method for a distribution network of a power system provided by the present invention. figure 1 Among them, the method provided by the invention comprises the following steps:

[0078] Step 1: Input the original distribution network parameters;

[0079] The original distribution network parameters specifically include:

[0080] a. Intrinsic data of distribution network: including network structure of distribution network, branch data, load of each node under various operation modes, active output of generator;

[0081] b. Generator term...

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Abstract

The invention discloses an ORP (optimal reactive power) method of a distribution network of an electric power system in the technical field of ORP of the distribution network of the electric power system. The method comprises the following main steps: introducing an accelerated evolution operation and an investigation operation in an ABC (artificial bee colony) algorithm to a basic differential evolution operation; and judging whether conditions of convergence of a hybrid algorithm are met, and ending the optimization and outputting the optimal result if the conditions of convergence are met.The hybrid algorithm for solving the ORP problem exerts the advantages that the operation is simple, robustness is good and the like, of the differential evolution algorithm, and can be used to shorten the running time of the algorithm and improve the probability of finding out the global optimal value.

Description

technical field [0001] The invention belongs to the technical field of reactive power optimization of power system distribution network, and in particular relates to a reactive power optimization method of power system distribution network. Background technique [0002] Reactive power optimization means that when the structural parameters and load conditions of the system are given, through the optimization of certain control variables, one or more performance indicators of the system can be found under the premise of satisfying all specified constraints. Optimum reactive power adjustment means. The reactive power optimization problem is a branch problem gradually differentiated from the development of optimal power flow. Reactive power optimization of distribution networks in power systems can control voltage levels and reduce active power losses. The commonly used reactive power / voltage control methods include adjusting the terminal voltage of the generator, adjusting th...

Claims

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Application Information

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IPC IPC(8): H02J3/18
CPCY02E40/30
Inventor 李元诚李彬
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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