电力系统及其自动化学报2017，Vol.29Issue(8)：119-125,7.DOI:10.3969/j.issn.1003-8930.2017.08.018
计及发电机运行极限的电压稳定临界点计算
Calculation of Voltage Stability Critical Point Considering Generator Capability Limits
摘要
Abstract
In order to solve the singular problem of Jacobi matrix at the voltage stability critical point,the reactive pow-er dynamic characteristics of generator is expressed considering the stator and rotor current limits on the basis of the tra-ditional PV-PQ transformation logic. Based on the nonlinear equivalent Taylor series of power system,a nonlinear equivalent model of node voltage and load current is set up considering the stator and rotor current limits.Under any changes of load power factor,the node voltage and load current are expanded as the Taylor series of node voltage mode. The proposed method can directly calculate the limit power flows and critical voltages,and accelerate the calculation speed. Moreover,the actual operation state of power system can also be approximated more closely.The accuracy and quickness of the established model are proved by the simulation result of an typical IEEE system .关键词
电力系统/连续潮流/转子电流限制/定子电流限制/非线性等值/电压稳定Key words
power system/continuous power flow/rotor current limit/stator current limit/nonlinear equivalence/voltage stability分类
信息技术与安全科学引用本文复制引用
颜廷鑫,刘光晔,谢冬冬..计及发电机运行极限的电压稳定临界点计算[J].电力系统及其自动化学报,2017,29(8):119-125,7.基金项目
国家自然科学基金资助项目(51577053) （51577053）
