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将基于FIR模型的预测函数控制算法推广到各通道开环渐进稳定多变量系统,为简单起见,针对2输入2输出系统,给出了采用单基函数(阶跃函数)的控制律解析解。考虑控制变量的幅值和速度约束,并将二者统一为速度约束,在线计算简单。将该算法应用到单元机组负荷控制系统中,仿真结果表明,系统具有良好的控制性能和很强的鲁棒性,尤其是,机组特性的变化几乎没有削弱系统的负荷跟踪性能。
The FIR model-based predictive function control algorithm is extended to open-loop, asymptotic stable multi-variable systems of each channel. For simplicity, a control law analytic solution using a simple basis function (step function) is given for a 2-input 2-output system. Considering the magnitude and speed constraints of the control variables and unifying the two as speed constraints, the online calculation is simple. The algorithm is applied to the unit load control system. The simulation results show that the system has good control performance and strong robustness. Especially, the change of the unit characteristics almost does not weaken the load following performance of the system.