基于多智能体的微燃机发电系统运行控制

Control of Micro Turbine Generator System Based on Multi-Agent

孤岛模式下,没有了大电网的电压支撑,系统电压易受负荷干扰而失去稳定,为了维护系统在公共总线处的电压稳定,针对微型燃气轮机并网发电系统的控制模型特点,建立了一种基于多智能体(MAS)技术的两层控制策略。上层是采用最优控制技术设计的协调控制智能体,下层是采用类似同步发电机下垂特性的控制技术设计分散控制智能体,两层之间根据电压安全指标协调配合,共同维护系统电压稳定。仿真结果表明,系统在大的扰动时能够维持系统电压的稳定,验证了该控制策略的有效性和可行性。

The system voltage will lose stability without the bulk power system voltage support under the islanding. In order to maintain the system public bus voltage stability, according to the features of the control model for micro turbine grid connected power generation system, this paper establishes a two-layer control strategy based on muhi-agent （MAS） technology. The upper layer is the coordination control agent with the optimal control theory, while the lower one is a decentralized control agent with a control method of the similar synchronous generator droop characteristic; and the two layers are coordinated according to the indexes of the voltage security, and take on the responsibility jointly for maintaining the system voltage stability. Simulation results show that the stability of the system voltage can been maintained when the system is disturbed severely, and that the control technology is reliable and effective.