灰色预测励磁控制同步发电机动态过程仿真  

Simulation of synchronous generator using grey prediction excitation control

作　　者：崔召辉[1] 刘宪林[1] 王明东[1] 于继来[2] 

机构地区：[1]郑州大学电气工程学院,河南郑州450002 [2]哈尔滨工业大学电气工程系,黑龙江哈尔滨150001

出　　处：《继电器》2007年第6期34-37,共4页Relay

摘　　要：为了更准确地研究灰色预测励磁控制对发电机行为的影响,基于非线性派克模型构建了考虑PSS作用的同步发电机灰色预测励磁控制系统模型,并以单机无穷大系统为对象对其控制效果进行了仿真。与采用线性化模型相比,采用非线性派克模型可保证灰色预测控制输入数据的非负性,简化预测算法。考虑调速系统和PSS的作用后,能更加准确和全面的了解灰色预测励磁控制系统的控制效果。仿真结果表明,在大小扰动下,无论是否具有PSS,同步发电机励磁系统中引入灰色预测控制后均可明显地改善系统的稳定性。In order to investigate the effects of grey prediction excitation control system on synchronous machine more accurately, grey prediction excitation control system with PSS has been modeled based on nonlinear Park model for synchronous generator. The control effect has been simulated on a Single-Machine-Infinite-Bus （SMIB） system. Compared with the commonly used linearized model, the nonlinear Park model guarantees the nonnegative input data in grey prediction control, simplifies the prediction algorithm. With speed governing system and PSS considered, more precise and general comprehension of the control effect of grey prediction excitation control system can be obtained. Simulation results show that when added to the traditional excitation system for synchronous generator, even with PSS installed, the proposed grey prediction control can obviously improve the stability of power system under small or severe disturbances.

关 键 词：电力系统 励磁控制 灰色预测 MATLAB 仿真 

分 类 号：TM341[电气工程—电机]