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A method and device for reactive power optimization of power grid based on improved leapfrog algorithm

A technology of leapfrog algorithm and optimization method, which is applied to circuit devices, reactive power compensation, reactive power adjustment/elimination/compensation, etc., and can solve problems such as low degree of optimization and poor convergence

Active Publication Date: 2019-12-10
ELECTRIC POWER RESEARCH INSTITUTE, CHINA SOUTHERN POWER GRID CO LTD +4
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Problems solved by technology

However, the current reactive power optimization method has poor convergence and low optimization degree, and it is easy to fall into local optimum.

Method used

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  • A method and device for reactive power optimization of power grid based on improved leapfrog algorithm
  • A method and device for reactive power optimization of power grid based on improved leapfrog algorithm
  • A method and device for reactive power optimization of power grid based on improved leapfrog algorithm

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Embodiment Construction

[0013] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0014] In order to clearly describe the technical solutions of the embodiments of the present invention, in the embodiments of the present invention, words such as "first" and "second" are used to distinguish the same or similar items with basically the same functions and functions. A skilled person can understand that words such as "first" and "second" do not limit the quantity and execution order.

[0015] as attached figure 1 As shown, the embodiment of th...

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Abstract

Embodiments of the present invention provide an improved leapfrogging algorithm-based power grid reactive power optimization method and a device thereof, and relate to the technical field of the power system planning technology. The method and the device are applied to the reactive power optimization of a power distribution network. In this way, the better convergence and the higher degree of optimization are realized. The method comprises the steps of obtaining the control variables of the power distribution network and the state variables of the power distribution network; obtaining a specified number of frog individuals and frog populations corresponding to each of all the specified number of frog individuals; according to the frog populations, obtaining an initial reactive voltage; according to the initial reactive voltage, obtaining the optimum value of a local reactive voltage; and obtaining an optimal solution of a global reactive voltage according to the optimum value of the local reactive voltage. The optimal solution of the global reactive voltage is applied to the reactive power optimization of the power distribution network. The method and the device are used for the reactive configuration of the power distribution network.

Description

technical field [0001] The invention relates to the technical field of power system planning, in particular to a reactive power optimization method and device for a power grid based on an improved leapfrog algorithm. Background technique [0002] Reducing network loss, improving power system transmission efficiency and power system operation economy are practical problems faced by power system operation departments, and are also one of the main directions of power system research. Grid voltage control is largely a problem of reactive power optimization control. Whether the system reactive power distribution is reasonable or not directly affects the safety and stability of the power system, and is directly linked to economic benefits. The reactive power optimization problem of power system is a part of the optimal power flow problem. [0003] The reactive power optimization problem of power system is a multi-variable, multi-constraint hybrid nonlinear programming problem, an...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/18
CPCH02J3/1871H02J2203/20Y02E40/30
Inventor 吴争荣董旭柱陆锋刘志文陶文伟谢雄威陈立明何锡祺俞小勇陈根军禤亮苏颜李瑾陶凯
Owner ELECTRIC POWER RESEARCH INSTITUTE, CHINA SOUTHERN POWER GRID CO LTD
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