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作 者:高金玲[1]
机构地区:[1]华北电力大学
出 处:《大电机技术》1998年第4期22-25,共4页Large Electric Machine and Hydraulic Turbine
摘 要:背靠背起动是指抽水蓄能电站的同步电动机直接由同步发电机供电起动。本文详细推导出了新的背靠背起动的数学模型,其中考虑了发电机和电动机两机的容量比、励磁电流、初始相位角和水轮机导叶开度及导叶开起速度对背靠背起动的影响,在此基础上编制了背靠背起动过程的通用计算机仿真软件,给出了仿真计算结果。The back-to-back starting of synchronous motors in the pumped-storage power stations means that the electric power for the motors starting is directly supplied by the synchronous generators. In this paper, a new mathematic model for the starting is derived in detail. Some factors which effect the starting, including the generator-motor capacity ratio, their magnetizing current ratio, the initial rotor angular position, the opening and the opening speed of the guide blade for the hydraulic turbine, are considered. A general purpose software for the starting is developed. Simulation results based on the software developed are given.
分 类 号:TV743[水利工程—水利水电工程]
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