蒸汽发生器水位的分段<i>H</i><sub>∞</sub>控制

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蒸汽发生器水位的分段H_∞控制

基金项目:

基于参数依赖Lyapunov函数的鲁棒滤波新方法研究（60504008）

College of Nuclear Science and Technology, Harbin Engineering University, Harbin, 150001, China

摘要: 采用线性参数变化系统建立了核动力装置U型管蒸汽发生器水位控制系统模型,研究了状态反馈分段H_∞控制问题。用Lyapunov稳定理论方法,提出了控制器存在的充分条件和线性矩阵不等式求解方法,设计了状态反馈分段控制器。通过数值仿真,验证了所提出方法的可行性。仿真结果表明,所设计的控制器能够保证闭环系统分段二次稳定,且满足H_∞性能指标要求。
- 蒸汽发生器 /
- 线性参数变化系统 /
- 线性矩阵不等式 /
- 分段控制 /
- H_∞性能指标
Abstract: Based on the linear parameter-varying （LPV） system, a system model is developed and the problem of state feedback piecewise H_∞ control is addressed for the level control of U-type steam generator in nuclear power plants. The sufficient conditions for the existence of controllers and the solved method of linear matrix inequalities are proposed in terms of Lyapunov stability theory approach. The feasibility is evaluated by numerical simulation and the results demonstrate that the proposed controllers can guarantee that the resulting closed-loop systems are quadratic stable and have desired H_∞ performance index in each operating region.
- Steam generator /
- Linear parameter-varying system /
- Linear matrix inequality /
- Piecewise control /
- H_∞ performance index