A wide range dynamic simulation model was established for the steam generator water level system with nonlinear time-varying and no self balancing ability. The optimization strategy for the speed factor of the auto-coupling PID control was studied,and two adaptive speed factor models were developed based on the deviation size and change law. The digital simulation results showed that the optimized auto-coupling PI control performance index was better than conventional PI control,the optimization strategy has certain reference value for other types of auto-coupling PID control.
关键词
自耦PI/速度因子/非线性时变系统/仿真模型
Key words
auto-coupling PI/speed factor/nonlinear time-varying system/simulation model