多机AC/DC系统次同步谐振和轴系扭振的研究  

On Subsynchronous Resonance and Shaft Torsional Vibration of an AC/DC Power System with Multi-Machines

作　　者：吴俊勇[1] 程时杰[1] 陈德树[1] 

机构地区：[1]华中理工大学电力工程系

出　　处：《华中理工大学学报》1993年第1期115-121,共7页Journal of Huazhong University of Science and Technology

基　　金：国家"八.五"重点科技攻关项目;国家自然科学基金资助课题

摘　　要：提出了系统部件的复频域等效端口导纳矩阵的概念,导出了复频域下多机AC/DC系统的网络方程,给出了任一台发电机组的综合电气阻尼的计算方法和轴系扭振的稳定判据,从而成功地将复数力矩系数法,推广应用到任意网络结构下多机交直流联合电力系统次同步谐振和轴系扭振的研究中.对一简单三机系统的分析计算,证明了本推广方法的正确性.The concept of port equivalent conductance matrix in a complex frequency domain for the components of a DC and AC system is proposed. With this concept ,the network equations for an AC/DC power system with multi-machines are derived in the complex domain. The complex torque coefficient method has been extended to the study of shaft torsional vibrations and SSR in such a system with an arbitrary network structure. Calculations of a three-machine AC/DC power system has proved the correctness of the new approach.

关 键 词：电力系统 次同步谐振 轴系扭振 

分 类 号：TM744[电气工程—电力系统及自动化]