Excitation controller control method and system

A technology of excitation control and control method, which is applied in the control of generators and synchronous generators through magnetic field changes, can solve problems such as poor adaptability, and achieve the effects of strong adaptability, improved adaptability, and flexible control strategies

Active Publication Date: 2020-08-28
HUBEI NORMAL UNIV
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Problems solved by technology

[0003] The purpose of the present invention is to provide a control method and system of an excitation controller, which solves the problem of poor adaptability of the existing excitation controller

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  • Excitation controller control method and system
  • Excitation controller control method and system

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Embodiment Construction

[0065] 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.

[0066] The object of the present invention is to provide a control method and system for an excitation controller, which solves the problem of poor adaptability of the existing excitation controller.

[0067] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0068] This...

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Abstract

The invention relates to an excitation controller control method and system, and relates to the technical field of power system stability control. The method comprises the following steps: determiningparameters of a control strategy by using a PID control and excitation control system mathematical model; determining a preset control condition corresponding to the current state of the excitation controller by utilizing the kth sampling error value of the excitation control system, a first error difference value between the kth sampling error value and the (k-1) th sampling error value and a second error difference value between the (k-1) th sampling error value and the (k-2) th sampling error value; and controlling the output of the excitation controller by adopting a control strategy corresponding to a preset control condition corresponding to the current state. According to the excitation controller control method and system, different preset control conditions can be automatically determined according to the working state and the error condition of the excitation control system, so that the control strategy is more flexible; parameters of the excitation controller are automatically adjusted, the adaptability of the excitation controller is improved, and the control effect of the excitation control system is better.

Description

technical field [0001] The invention relates to the technical field of power system stability control, in particular to an excitation controller control method and system. Background technique [0002] The stability of the power system has an important impact on the safety and reliability of the power grid. It is of great significance to enhance the stability of the power system through various measures for the healthy development of the social economy and the improvement of people's quality of life. The excitation controller is the core of the synchronous generator control system, which can effectively control the generator excitation system and is an important measure to make the power system run stably. Although the application of conventional PID control (proportional-integral-derivative control, proportional-integral-derivative control) on the excitation controller is very mature, the parameters of the excitation controller using this control method are fixed, the contr...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P9/14H02P103/20
CPCH02P9/14H02P2103/20
Inventor 高红亮詹习生朱军杨青胜肖凌俊徐丰
Owner HUBEI NORMAL UNIV
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