论文部分内容阅读
为提高锅炉 -汽轮机系统的信号跟踪和抗干扰能力 ,利用输入 -状态反馈线性化和输入 -输出反馈线性化方法分别设计了锅炉 -汽轮机系统的控制律。对于输入 -状态线性化方法由于输入状态为线性关系 ,因此系统可以在较大的范围内正常的工作。对于输入 -输出线性化方法可以验证系统在平衡点邻域零动态稳定 ,然而计算机仿真表明利用输入 -输出反馈线性化设计的控制器由于零动态的稳定范围较小 ,系统只能工作在工作点的邻域。基于以上结果对输入 -状态和输入 -输出反馈线性化方法进行了比较分析。计算机仿真表明利用输入 -状态线性化方法所设计的控制器具有良好的信号跟踪和抗干扰能力
In order to improve the signal tracking and anti-interference ability of the boiler-turbine system, the control law of the boiler-turbine system is designed respectively by using the input-state feedback linearization and the input-output feedback linearization method. For the input-state linearization method because the input state is linear, so the system can work in a larger range of normal. The input-output linearization method can verify the zero-dynamic stability of the system in the vicinity of the equilibrium point. However, the computer simulation shows that the controller designed with linear feedback of input-output feedback can work only at the working point due to the small dynamic range of stability Neighborhood. Based on the above results, the input-state and input-output feedback linearization methods are compared and analyzed. Computer simulation shows that the controller designed by using the input-state linearization method has good signal tracking and anti-interference ability