基于轨迹灵敏度计算的水电站系统仿真

Simulation of Hydropower Plant System Based on Trajectory Sensitivity Calculation

研究了水电站仿真中轨迹灵敏度分析计算的应用,提出了一种能够有效计算水电站模块化仿真模型中轨迹灵敏度公式的方法,该仿真模型由水轮发电机其调速系统模块,励磁系统模块,同步电机模块及电气网络模块组成.以一个连接于外部等值系统的水电站为例,验证了水轮机及其调节系统的参数调节以及初始值扰动的轨迹灵敏度分析计算,仿真结果和由PSASP运行得到的结果一致.

The applications of trajectory sensitivity analysis of hydropower plant simulation are studied; and a method that can solve the equations for trajectory sensitivities more effectively in the modularized simulation model of hydropower plants is proposed; the model consists of hydro-turbine and its governor system module, excitation system module, synchronous machine module and electric network module. The application of trajectory sensitivity analysis of the regulating of parameters or initial values of hydro-turbines and governors is tested on the dynamics of hydroelectric systems; taking a simple three generators power system for example, a hydropower plant and external equivalent system are verified with this method; The simulation results by the proposed method show good agreements with those by PSASP.