摘要
线性参数变化(LPV)输出反馈H∞控制器的设计,用于具有动态参数变化的蒸汽发生器的水位控制系统。首先考虑蒸汽流量和给水流量对水位的影响,建立LPV系统的数学模型,然后运用线性参数变化的理论和Lyapunov稳定性理论设计蒸汽发生器水位控制系统的输出反馈H∞控制器。控制器既保证了系统的稳定性,又有很好的性能指标,过程是控制器按照反应堆功率自动调节,控制器的求解过程是以线性矩阵不等式的形式表达出来的。最后运用Matlab软件对水位控制系统进行仿真,仿真结果很好地验证了控制器的可行性。
The Linear Parameter Varying （LPV）output feedback H∞ controller is applied to steam generator water level control system with dynamic parameter - varying. A mathematic model of LPV system is established for considering the effect of steam flow and feed water flow on water level, then the output feedback H∞ controller of steam generator water level control system is designed via the theory of LPV and Lyapunov stability theory. This proposed controller ensures both the stability of system and the performance. The control process of controller is automatically adjusted according to the power of reactor, the design of controller is expressed in the form of linear matrix inequalities. Finally, the simulation of water level control system is carried out with the software Matlab. Simulation results commendably prove the feasibility of this proposed controller.
出处
《计算机仿真》
CSCD
北大核心
2009年第3期256-259,289,共5页
Computer Simulation
关键词
蒸汽发生器
水位控制
线性参数变化
线性矩阵不等式
Steam generator（SG）
Water level control
Linear parameter varying（LPV）
Linear matrix inequality（LMI）
