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Design method of stabilizer of power system

A power system stability and design method technology, applied in the direction of electrical components, circuit devices, AC network circuits, etc., can solve the problems of difficult configuration of state variable observer poles, inability to compensate oscillation frequency, etc., achieve good control effects, and suppress low-frequency oscillations Effect

Inactive Publication Date: 2013-06-05
NORTH CHINA ELECTRIC POWER UNIV (BAODING) +1
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Problems solved by technology

[0006] Aiming at the shortcomings of the phase compensation method mentioned in the above background technology that the selection of parameters of the phase compensation link cannot effectively compensate all oscillation frequencies, and the poles of the state variable observer of the full state feedback control are not easy to configure, etc., the present invention proposes a power System Stabilizer Design Methodology

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  • Design method of stabilizer of power system
  • Design method of stabilizer of power system
  • Design method of stabilizer of power system

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Embodiment Construction

[0031] The preferred embodiments will be described in detail below in conjunction with the accompanying drawings. It should be emphasized that the following description is only exemplary and not intended to limit the scope of the invention and its application.

[0032] Concrete implementation steps of the present invention are as follows:

[0033] 1. Taking the operating voltage of the bus bar at the outlet of the generator transformer as the voltage source, establish a system state space model including the generator, excitation system and voltage regulator:

[0034] K 1 = n 1 ( ψ ad 0 + ...

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Abstract

The invention discloses a design method of a stabilizer of a power system in the technical field of stable control of the power system. The method comprises the following steps: selecting a variable corresponding to maximum feedback gain from a full-state feedback gain matrix of the system as a primary variable; and adjusting the feedback gain of the primary variable for realizing the control of damping of the system, and setting a zero point of the system in a matching way for adjusting oscillation mode. By adopting the method, low-frequency oscillation of the system is effectively inhibited, the problem that the overall control effect of the stabilizer is affected due to unreasonable pole configuration of a state variable observer when adopting the full-state feedback control is simultaneously avoided, and the good control effect is realized.

Description

technical field [0001] The invention belongs to the technical field of power system stability control, and in particular relates to a design method of a power system stabilizer. Background technique [0002] The low-frequency oscillation problem of power system belongs to the small disturbance stability category of power system, and its manifestation is the equal-amplitude or increasing-amplitude oscillation with oscillation frequency between 0.2 and 2.5 Hz, such as the power angle between generators in the system and the power of system tie line. With the continuous expansion of the scale of the power system due to the interconnection of regional systems, and the continuous development of long-distance high-power transmission requirements, the problem of low-frequency oscillation in the power system has become increasingly prominent, and has become an important factor that threatens the stability of the power system and limits the power transmission capacity between regions....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/00H02P9/14
Inventor 马进王皓靖张璞胡扬宇付红军孙素琴
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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