同步发电机整流系统的建模  

Modeling of synchronous generatorrectifier systems

作　　者：王善铭[1] 王荀[1] 王祥珩[1] 

机构地区：[1]清华大学电机工程与应用电子技术系电力系统及大型发电设备控制和仿真国家重点实验室,北京100084

出　　处：《清华大学学报（自然科学版）》2006年第7期1189-1192,共4页Journal of Tsinghua University(Science and Technology)

基　　金：国家自然科学基金资助项目(50277020)

摘　　要：为分析同步发电机整流系统的运行稳定性,给出了系统简化模型。为考虑换相重叠,超瞬变电感从电机中分离出来,带整流负载的三相同步发电机数学模型只计及转子回路磁链的直流分量。忽略了交流侧和直流侧的谐波,整流器的数学模型利用开关函数。对三相同步发电机整流带反电动势负载系统的数学模型进行线性化,从而导出了发电机在直流侧的等效阻抗、系统等效阻抗和系统特征方程,利用它们可分析系统的稳定性。A simplified model was developed to analyze the operational stability of synchronous generator-rectifier systems. The subtransient inductances are separated from the electric machine to consider commutation overlap with only unidirectional components of the rotor circuit flux linkages taken into account in the mathematical model of a three phase synchronous generator with a rectifier load. The rectifier model uses switch functions which neglect the harmonics on both the ac and dc sides. The system model of the 3-phase synchronous generator, with the rectifier and a back-emf （electromotive force） load, is then linearized. The result gives the equivalent impedance of the generator on the dc side, the equivalent impedance of the system and the characteristic equation of the system which are used to analyze the system stability.

关 键 词：同步电机 整流器 开关函数 线性化 

分 类 号：TM34[电气工程—电机]