Simulation Analysis for Asynchronous Operation Capacity of Turbogenerator under Excitation-Loss

摘要：

Rased on single-generator infinite-bus system model, the asynchronous operation capacities of a 600MW turbogenerator after direct short-circuit excitation-loss under 100％, 60％ and 40％ rated power operation conditions are researched. The parameters such as stator voltage, stator current, rotor current, active power and reactive power, speed are obtained after direct short-circuit excitation-loss. The results indicate that the turbogenerator cant enter into the steady asynchronous stage under 100％ rated power, and the stator current is attained 2.65 times rated current. The turbogenerator can enter into the steady asynchronous stage under 60％ rated power, while the stator current is exceeded 1.1 times rated current. The asynchronous operation is allowed for short time under 40％ rated power, because the stator current is less than permissible value of safety operation and the decreasing rate of terminal voltage is less than 10％. The conclusions can provide an important theoretical foundation for large turbogenerator design and asynchronous operation capacity analysis.

关键词： short-circuit excitation-loss capacity of asynchronous operation single-generator infinite-bus system

作者: Hu Jin-yao Liang Yan-ping Chen Jing Huang Hao

作者单位: Institute of Electrical and Electronic Engineering Harbin University of Science and Technology Harbi Harbin Electric Machinery Company Limited Harbin,China

会议类型: 国际会议

会议名称: The 6th International Forum on Strategic Technology(IFOST 2011)(第六届国际战略技术论坛)

会议地点: 哈尔滨

会议语种:英文

页码: 529-532

在线出版日期: 2011-08-22（万方平台首次上网日期，不代表论文的发表时间）