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在综述大型水轮发电机内部故障仿真及其主保护配置研究的基础上,指出研究故障暂态过程的必要性及相关难点。阐述了基于转子每极双阻尼条的简化暂态仿真模型的基本原理,并进行了详细仿真验证,指出该简化暂态仿真模型在计算精度和求解耗时上都能满足工程实际应用要求, 说明了其工程实用价值,为国内大型水轮发电机主保护配置方案的优化设计研究提供了新途径。
Based on the review of the internal fault simulation of large hydroelectric generator and its main protection configuration, the necessity and difficulties of studying the fault transient process are pointed out. The basic principle of the simplified transient simulation model based on double damping bars per pole of the rotor is expounded and verified by detailed simulation. It is pointed out that the simplified transient simulation model can meet the practical application requirements both in calculation precision and time-consuming The practical value of the project provides a new way for the optimization design of the main protection configuration scheme of large hydroelectric generator in China.