为研究含脉冲负载独立微电网的柴-储协调控制应用关键技术,首先通过仿真分析了不同控制策略的逆变器与柴油发电机组并联带混合负载的不同效果,根据不同控制策略下双源并联带不同类型负载的特点,结合含脉冲负载独立微电网的负荷特点,采用V/f控制、下垂控制、虚拟柴油发电机组控制的组合作为逆变器的控制策略。针对减少柴油消耗、增加可再生能源利用、优化系统运行状态的目标,研究了能量管理方案。最后以含脉冲负载独立微电网的多种电源配置为例,进行了效益分析。

In order to study the key technology of diesel-storage coordinated control application in isolated microgrid with pulse load, the different effects of inverter's different control strategies on parallel connection of inverter and diesel generating set with mixed load are firstly analyzed by simulation. According to the characteristics of dual-source parallel connection with different types of loads under different control strategies, combined with the load characteristics of isolated microgrid with pulse load, the combination of improved V/f control, droop control and virtual diesel generator set control is adopted as the control strategy of inverter. In order to reduce diesel consumption, increase the utilization of renewable energy and optimize the operation status of the system, an energy management scheme is studied. Finally, a variety of power supply configuration of isolated microgrid with pulse load are taken as examples to analyze the benefits.

TM76