修正互联结构的水力机组哈密顿控制策略  

Hamiltonian control strategy with modified interconnection structure for a hydroelectric generating set

作　　者：曾云[1] 王煜[2] 钱晶[2] 

机构地区：[1]昆明理工大学工程力学系,云南昆明650051 [2]昆明理工大学电力工程学院,云南昆明650051

出　　处：《控制理论与应用》2009年第7期795-799,共5页Control Theory & Applications

基　　金：国家自然科学基金重点资助项目(50839003);云南省自然科学基金资助项目(2008GA027)

摘　　要：采用哈密顿互联结构修正的控制设计简化方法,避开了求取修正能量函数的困难.以非线性水轮发电机组哈密顿模型为基础,为了从内部互联结构上增加调速器和机组功角的联系,在结构矩阵中增加导叶开度和功角的关联因子.采用哈密顿互联结构修正的简化设计方法,设计了励磁和调速的双输入控制规律镇定系统.仿真表明,这一方法能有效改善机组在弱阻尼下调节的稳定性.A simplified method based on the modified Hamiltonian interconnection structure（MHIS） is used to design the controller. This method avoids the difficulties of searching the modified energy function. Based on the Hamiltonian model of the nonlinear hydroelectric generating set（NHGS）, the correlation between the generator power angle and the gate opening is added to the structure matrix, so that the coupling between the hydraulic turbine governor and the unit power angle is reflected in the interconnect structure. A stabilizing system is designed by using the simplified method of HISM, which has two-input control law, that is, the exciting and the governing. The simulation shows that this method effectively improves the stability of NHGU even in the weak damping.

关 键 词：哈密顿模型 互联结构修正 关联因子 水轮发电机组 镇定控制 

分 类 号：TM312[电气工程—电机]