电工技术学报2012，Vol.27Issue(9)：9-16,33,9.
同步发电机的非线性鲁棒电压控制
Nonlinear Robust Voltage Control for Synchronous Generators
阮阳 1袁荣湘 1万黎 2赵红生3
作者信息
- 1. 武汉大学电气工程学院,武汉430072
- 2. 湖北省电力试验研究院,武汉430077
- 3. 湖北省电力经济技术研究院,武汉430077
- 折叠
摘要
Abstract
Most nonlinear excitation control methods depend on the operating point of power system and can't assure voltage regulation accuracy of synchronous generators. For this reason, a nonlinear robust voltage control strategy is proposed in this paper. For a synchronous generator connected to power network through a transformer, the mathematical model is transformed into a uncertain linear system with the state variables of deviations of generator terminal voltage, rotor speed and generator active power output. And then a nonlinear voltage controller is designed utilizing a linear matrix inequation(LMI) based robust control theory. Compared with the existing controllers, the proposed controller assures voltage regulation accuracy and adapts to system parameters and operating points. And the controller doesn't need to be respectively designed for single-machine-infinite-bus system and multi-machine power system. Besides that, neither rotor angle nor any variable's differentiation or integration needs to be measured for the controller. Detailed tests were conducted by PSCAD/EMTDC for a single-machine-infinite-bus system and WSCC 4-machine power system respectively, and simulation results illustrate good performance of the proposed controller.关键词
电力系统/同步发电机/非线性励磁控制/电压控制/输出反馈Key words
Power system/synchronous generators/nonlinear excitation control/voltage control/output feedback分类
信息技术与安全科学引用本文复制引用
阮阳,袁荣湘,万黎,赵红生..同步发电机的非线性鲁棒电压控制[J].电工技术学报,2012,27(9):9-16,33,9.
