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基于电压源型换流器(VSC)的多端直流输电(VSC-MTDC)系统在分布式发电、可再生能源发电、中/低压输配电、电力市场等方面具有广阔的应用前景。文中分析了VSC-MTDC系统的特点及其控制方法的研究现状。为满足VSC-MTDC控制系统快速、有效的要求,利用多代理系统(MAS)的基本特性和功能,设计了一种基于MAS的VSC-MTDC控制系统,并提出了基于MAS的VSC-MTDC系统协调控制策略,详细分析了底层Agent控制的实现方式。对一个典型的四端VSC-MTDC系统进行了仿真。仿真结果表明MAS能够有效地对各VSC进行协调控制,保证VSC-MTDC系统运行高效、稳定。
VSC-MTDC system based on voltage source converter (VSC) has broad application prospects in distributed generation, renewable energy power generation, medium / low voltage power transmission and distribution, power market and so on. The article analyzes the characteristics of VSC-MTDC system and the research status of its control method. To meet the requirements of VSC-MTDC control system quickly and effectively, a MAS-based VSC-MTDC control system is designed by using the basic features and functions of Multi-Agent System (MAS). The coordination of MAS-based VSC-MTDC system Control strategy, a detailed analysis of the realization of the underlying agent control. A typical four-terminal VSC-MTDC system was simulated. The simulation results show that MAS can effectively coordinate and control each VSC and ensure the VSC-MTDC system to operate efficiently and stably.