856MVA水轮发电机非正常运行工况的网机耦合仿真

A Grid-machine Coupled Transient Procedure Simulation for 856 MVA Hydro-generator under Abnormal Operating Conditions

通过对大型水轮发电机非正常运行电磁过程的分析,建立了以发电机为主,包括电网、励磁系统和机械系统在内的数值模型,对一台856 MVA水轮发电机发生突然短路、非同期并网、重合闸等各种不同故障工况进行了仿真研究,为发电机的设计和运行提供理论依据。

The paper proposes an analysis for transient procedure under abnormal operating conditions by constructing a numerical model containing the generator, gird, excitation system, mechanical system, etc.. The simulation of sudden short-circuit, asynchronous closing and reclosing failures are studied to provide theoretical basis for designing and operation.