抽水蓄能发电机组背靠背启动的研究

Investigation of Back to Back Starting of Pumped Storage Hydraulic Generating Unit

研究分析抽水蓄能发电机组的背靠背启动。列举模型和现场实测结果,并与希腊一家电厂的实例进行对比,分析影响该种启动的主要参数,得出了该过程的有关物理规律;还特别讨论了励磁和导叶开启过程的影响,以及驱动电机的转矩-转速特性曲线,揭示了正确选择确保启动成功的主要参数的方法。

In the present paper,the procedure of back to back starting of pumped storage hydraulic generating unit is investigated and analyzed.The results from simulation as well as from real on site measurements are presented and compared for a case study of a Greek power station.Main parameters influencing this phenomenon are analyzed,and information is given on the physical laws underlying the process.In particular,the effects of excitation and gate valve opening procedure are discussed,along with the torque speed characteristic of the driving machine.Guidance is developed for the proper selection of the main parameters for a successful start.