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Study of the Influence of Turbine Governor on Power System Dynamic Stability

Author: WangGuanHong
Tutor: LiuZengHuangï¼›ZhaoHongGuang
School: China Electric Power Research Institute
Course: Proceedings of the
Keywords: Prime mover control system Mechanism Analysis Dynamic Stability Power system
CLC: TM712
Type: Master's thesis
Year: 2008
Downloads: 167
Quote: 2
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Abstract


With the construction and development of the power grid , power system dynamic stability problems have become increasingly prominent . Prime mover control system as an important part of the power system , plays a very important role in the maintenance system stability and improve power quality ; study the prime mover control system of the power system in order to better carry out the analysis of regional interconnected power system stability , the impact of dynamic stability is necessary. Adjust the system frequency response and damping characteristics to start from the prime mover , the prime mover adjust the mathematical model of the system are summarized and simplified . Prime mover mechanism to adjust the system dynamic stability of the power system , mechanism analysis results in terms of both time domain and frequency domain verification, the general conclusions . Made and conclusions are: 1, the prime mover conditioning systems affect the power system dynamic stability mechanism . By changing the mechanical torque affect the motion of the rotor , thus affecting the stability of the power system dynamic ; 2, introduced in Phnlips-Heffron model the prime mover conditioning system transfer function model , its frequency response and damping characteristics ; 3, in the stand-alone infinite bus system to study the prime mover to adjust the system parameters on the stability of the power system dynamic by small interference calculation of the frequency-domain and time-domain Prony analysis to verify the correctness of the conclusions of the mechanism analysis ; 4 , a three - machine system of the original the motivation for adjusting the frequency response of the system , damping characteristics analysis and time-domain simulation studies have shown that the prime mover control system affect the power system dynamic stability mechanism analysis conclusion also applies to multi-machine system . 5 , multi-machine system , the prime mover conditioning system stabilizing influence on the power system dynamic addition with its own model parameters , but also with the unit to an oscillation mode .

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CLC: > Industrial Technology > Electrotechnical > Transmission and distribution engineering, power network and power system > Theory and Analysis > Power system stabilizer
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