Design method of stabilizer of power system

A technology for power system stability and design method, applied in electrical components, circuit devices, AC network circuits, etc., can solve the problems of inability to oscillate frequency compensation, difficult configuration of poles of state variable observers, etc., to suppress low-frequency oscillation and achieve good control effects Effect
CN102157933AInactive Publication Date: 2011-08-17NORTH CHINA ELECTRIC POWER UNIV (BAODING) +1
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Patent Information

Authority / Receiving Office
CN ยท China
Current Assignee / Owner
NORTH CHINA ELECTRIC POWER UNIV (BAODING)
Publication Date
2011-08-17
Estimated Expiration
Not applicable ยท inactive patent

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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.
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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 lines. 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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