摘要
根据分散的自动发电控制AGC(AutomaticGenerationControl)的控制要求和电力市场的条件,研究了互联电力系统分散的鲁棒控制问题。采用虚拟控制区域的概念修正原互联电力系统的状态空间模型;利用大系统包含原理的约束和聚集条件将修正后的互联电力系统模型分解为各个子系统;根据LMI算法来设计可随时满足区域间功率交换合同的分散H∞自动发电控制器。此方法应用到受负载阶跃扰动的两区域互联电力系统中,结果表明了该方法的有效性,并且满足了电力市场条件下自动发电控制的要求。
A decentralized robust control problem is studied for interconnected power systems according to the control requirements of decentralized AGC and the condition of electricity market. First, the state space model for the interconnected power system is modified using the concept of virtual control area. Second, the modified model is decomposed as single subsystems based on the restriction and aggregation condition of the inclusion principle of large-scale systems. Finally, the LMI algorithm is adapted to design a decentralized H∞ controller that satisfies power exchange contract among areas. The proposed control scheme is applied to two-area interconnected power systems with load step disturbances. The simulation results show the effectiveness of the proposed method, and the requirements of automatic generation control in the condition of electricity market are satisfied.
出处
《控制工程》
CSCD
2004年第S1期161-164,共4页
Control Engineering of China
基金
国家自然科学基金资助项目(60074002)辽宁省教育厅科研基金资助项目(202192057)
关键词
互联电力系统
电力市场
分散自动发电控制
LMI
输出反馈H∞控制器
interconnected power systems
electricity market
decentralized automatic generation control
LMI, output feed- back H∞ controller.
