作　　者： ; ; ; (李刚）;

机构地区： 广西民族大学

出　　处： 《电工技术学报》 2014年第4期229-236,共8页

摘　　要： 根据水电站水力系统具体水工结构的不同,针对水库-引水涵洞-调压室-压力引水管-水轮发电机组水力发电系统,首次建立了用于水轮机调速系统研究的5阶非线性控制模型,利用多性能指标非线性控制设计方法对水轮机调速系统进行设计,通过调整输出函数系数矩阵的值来实现系统的零极点配置。仿真结果表明:多性能指标非线性控制(MINC)设计方法比完全精确线性化(EFL)设计方法具有更好的系统调节性能,在保证系统稳定性的同时能快速调整水轮机速度偏差为零,并且系统具有良好的抗负荷干扰性能,通过输出函数系数矩阵的调整实现协调系统动、静态性能,从而实现水轮机调速系统的高性能调节。 According to different structures of hydraulic systems combined with hydroturbine for hydropower plant, the 5 order nonlinear control model of hydro turbine speed governor system for hydraulic system composed of reservoir-tunnel-surge-penstock-generator units is established for first time. The hydro turbine speed governor system controller is designed by use of multi-index nonlinear control design method. The system zero and pole are configured by regulating the output function matrix. The simulation results demonstrate that the multi-index nonlinear control(MINC) design method has more excellent system performance than that of exact feedback linear(EFL) method, which can ensure the system stabilization and swiftly regulate the turbine speed error to zero, moreover, which possesses nicer rejection load disturbance performance. The hydro turbine speed governor system performance are enhanced by harmonizing the system dynamic and steady state performance using the method of regulating the output function matrix.

关 键 词： 水轮机调速系统 调压室 多性能指标 非线性控制 输出函数系数矩阵

领　　域： [水利工程]