CAJ | 학술논문

提出了一种将闭环极点配置到满足动态响应区域内的增益调度LPV(linear parameter varying)鲁棒H_∞控制器设计新方法,以解决机组的动态稳定性问题.利用LPV的凸分解方法,将风电机组线性化模型化为具有凸多面体结构的LPV模型,然后利用LMI(linear matrix inequalities)方法对凸多面体各顶点分别设计满足H_∞性能和闭环极点配置的反馈增益,再利用各顶点设计的反馈控制器综合得到具有凸多面体结构的IPV控制器.与PID控制的仿真结果相比较,验证了该控制器具有良好的控制性能.
제출료일충장폐배겁점배치도만족동태향응구역내적증익조도LPV(linear parameter varying)로봉H_∞공제기설계신방법,이해결궤조적동태은정성문제.이용LPV적철분해방법,장풍전궤조선성화모형화위구유철다면체결구적LPV모형,연후이용LMI(linear matrix inequalities)방법대철다면체각정점분별설계만족H_∞성능화폐배겁점배치적반궤증익,재이용각정점설계적반궤공제기종합득도구유철다면체결구적IPV공제기.여PID공제적방진결과상비교,험증료해공제기구유량호적공제성능.
A new gain scheduling LPV (linear parameter varying) robust H_∞, controller design method was put forward to resolve dynamic stability problems of the wind turbines. The wind turbine model was converted into convex polyhedron structure LPV model by using LPV convex decomposition method, and then each vertex of convex polyhedron was designed to meet H_∞, performance and closed-loop pole placement feedback gain by using LMI (linear matrix inequalities) method. Each vertex feedback gain was synthesized to get LPV controller with convex polyhedron structure. The result of simulation compared with PID control validates that the controller has well control performance.