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Use method for configuring novel power system stabilizer PSS4B by using improved PSO algorithm

A power system and stabilizer technology, applied in the direction of circuit devices, AC network circuits, reducing/preventing power oscillation, etc., can solve problems such as not being able to achieve the optimal suppression effect

Inactive Publication Date: 2018-09-14
SOUTHWEST JIAOTONG UNIV
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Problems solved by technology

[0007] The purpose of the present invention is to solve the above-mentioned defects in the prior art, and provide a method for improving the PSO algorithm to configure the new power system stabilizer PSS4B, which can overcome the problem of not using the three-branch phase compensation link under the classical parameters given by IEEE. The problem of not being able to achieve the optimal suppression effect

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  • Use method for configuring novel power system stabilizer PSS4B by using improved PSO algorithm
  • Use method for configuring novel power system stabilizer PSS4B by using improved PSO algorithm
  • Use method for configuring novel power system stabilizer PSS4B by using improved PSO algorithm

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[0031] In order to make the purpose, technical solutions and advantages of the present invention clearer, the following technical solutions in the present invention are clearly and completely described. Obviously, the described embodiments are some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0032] Under the classical parameters given by IEEE, the unfavorable result caused by not using the three-branch phase compensation link is: the typical parameters of PSS4B provided by the IEEE standard provide a limited phase lead range in the range of 0.1-2HZ, and do not have universal adaptability. For the conventional self-shunt excitation system and the three-machine excitation system with large lag characteristics, it is necessary to adjust the lead-lag phas...

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Abstract

The invention provides a use method for configuring a novel power system stabilizer PSS4B by using an improved PSO algorithm. According to the method, a random weight and hybrid operation-combined method is adopted to improve a basic PSO algorithm, and then, the transfer function of the PSS4B is partially simplified; the improved PSO algorithm is utilized to optimize parameters to be optimized inthe PSS4B; and a one-machine infinite bus system and a 3-machine 9-node system perform parameter optimization simulation on the PSS4B through using the improved PSO algorithm. With the method of the invention adopted, the problem of failure to achieve an optimal suppression effect which is caused by a condition that a three-branch phase compensation link is not applied provided that classical parameters are given by the IEEE can be solved; since the improved PSO algorithm is adopted to configure the novel power system stabilizer PSS4B, the suppression of low-frequency oscillation by the PSS4Bcan be quantitatively analyzed.

Description

technical field [0001] The invention belongs to the technical field of power systems, and in particular relates to a method for using an improved PSO algorithm to configure a novel power system stabilizer PSS4B. Background technique [0002] With the implementation of west-to-east power transmission and north-south interconnection, the scale of my country's power grid is gradually expanding, and a giant power system networked across the country will be formed. Although grid interconnection can improve the economy of power generation and transmission, it also brings problems to the stability of the grid. In the case of heavy load of the generator, long-distance power transmission, and the excitation of the fast excitation system, the total damping of the system may become smaller or even negative, which easily causes low-frequency oscillation problems. Low-frequency oscillation will affect the stability of the system, and in serious cases, it may cause decoupling and cause a...

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Application Information

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IPC IPC(8): H02J3/24
CPCH02J3/24H02J2203/20
Inventor 王德林孙宁杰刘英超朱亚飞徐慧
Owner SOUTHWEST JIAOTONG UNIV
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