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Nonlinear Excitation Predictive Control of the Power System

Author: NiuFangFang
Tutor: LiXiaoZuo
School: Guangxi University
Course: Proceedings of the
Keywords: one machine-infinity bus system multi-machine power system nonlinear excitation control predictive control Target State Equation (TSE)
CLC: TM76
Type: Master's thesis
Year: 2007
Downloads: 192
Quote: 2
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Abstract


Along with the advancement of society and the development of science, thescale of power system is bigger, several wide range accidents of power systemoccurred in the past few years. Therefore the subjects of improve and enhance thestability of the power system have received a great deal of attention. Researchers havedone much works and got many accomplishments. The paper applies the predictivecontrol theory into the nonlinear excitation control design of the one machine-infinitybus system and the multi-machine power system, and proposes a new nonlinearexcitation control law. The main works and the results are follows:Firstly, the paper gains a new model of the one machine-infinity bus systembased on the typical generator model. Combining with project, the state variable ofthe new model is [Vt, Pe,ω]. Then, the paper brings forward an ameliorative design ofthe TSE control law. In order to verify the valid of the control law, the papercompares it with the TSE control law and the integral linear optimal control lawunder the disturbance of machine power.Based on the typical generator model, the paper also gains a new model of themulti-machine power system with the state variable [Vti, P(ei),ωi]. Then, three differentkinds of the nonlinear excitation control laws are established on the new model. Thefuture information of the state variables is used in the later control laws and lays outthe strongpoint. The paper establishes the Andersen system simulate model usingMATLAB. The closed-loop control system is set up by the Andersen system simulatemodel and the nonlinear excitation control law. In order to verify the valid of thecontrol law, the paper experiments the disturbance of machine power and shortcircuit.

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CLC: > Industrial Technology > Electrotechnical > Transmission and distribution engineering, power network and power system > Power system automation
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