交流励磁水轮发电机组变速运行效益分析

Benefit analysis on variable speed operation of AC excitation hydrogenerator unit

为了研究交流励磁水轮发电机组变速运行效益,该文给出了不同水头和出力下交流励磁水轮发电机组最优转速的求取方法,并结合实例对多种工况下交流励磁水轮发电机组和常规水轮发电机组运行时在效率、消耗水量和发电量等方面进行了比较分析。计算结果表明交流励磁水轮发电机组具有显著的节水和多发电效益。

This paper presents a speed optimization method for the variable speed operation of AC excitation hydrogenerator units under different head and power.To compare with the conventional hydro-generator units,a comparative analysis on efficiency,water consumption and power generation is made for a variety of operating conditions.Results show a significant improvement on the benefit of the AC excitation units in terms of water-saving and power generation.