关键词: 一次调频, 建模仿真, 动态特性, HYSIM, 超长引水发电系统, 锦屏Ⅱ水电站,

Abstract: In order to analyze the dynamic response characteristic of primary frequency regulation in super-long water diversion and power generation system,case of Jinping Ⅱ Hydropower Station(8×600 MW),a complete primary frequency regulation simulation model was established by the user-defined modeling function of HYSIM software.By the simulation model,the influence law of turbine governor parameters on the primary frequency regulation characteristics of the unit was obtained.Besides,two typical primary frequency regulation cases(frequency difference opening mode and frequency difference power mode)were simulated.At the same time,the calculated results were compared with the test results.The results show that the established simulation model can accurately describe the dynamic response characteristics of primary frequency regulation of the super-long water diversion and power generation system.Also,it can provide a reliable simulation platform for rechecking the extreme control conditions and tuning of turbine governor parameters.

Key words: primary frequency regulation, modeling and simulation, dynamic performance, HYSIM, super-long water diversion and power generation system, Jinping Ⅱ Hydropower Station,