Analysis on the Stability of Leading Phase Operation for QFQS-200 Generator

In order to solve the problem that synchronous generator leading phase operation can enlarge the power angle,which will impact system stability,firstly the type QFQS-200 large turbine generator leading phase system simulation model is set up by MATLAB /Simulink software. Then with 100 %,80% and 60...

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Bibliographic Details
Main Authors: Lv Yan-ling, ZHANG Jie, GAO Yu-ting
Format: Article
Language:zho
Published: Harbin University of Science and Technology Publications 2017-12-01
Series:Journal of Harbin University of Science and Technology
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Online Access:https://hlgxb.hrbust.edu.cn/#/digest?ArticleID=1451
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Summary:In order to solve the problem that synchronous generator leading phase operation can enlarge the power angle,which will impact system stability,firstly the type QFQS-200 large turbine generator leading phase system simulation model is set up by MATLAB /Simulink software. Then with 100 %,80% and 60% load conditions, the generator simulation model converts lagging to leading power factor state. And we can get the characteristics of single generator leading phase operation. Compared with the simulation results,the data of the same type generator unit under the same working condition,verify the accuracy of the proposed model. Afterwards, the depth in phase simulation of the generator model with 60% load is carried out,and the results show that the deeper generator in phase the more power angle oscillations is, the system stability will lose, too. Making sure generator operation under the optimal phase depth is necessary. Finally,multi-generators leading phase system simulation model is established,and the model is used to simulate the leading phase operation. It is concluded that the multi-machine in-phase can avoid the single unit getting deep in leading phase,and have good stability.
ISSN:1007-2683