【摘要】 微电网技术需要解决的关键问题在于如何实现多个分布式电源的协调控制,而功率控制的快速性和准确性是协调控制的前提。针对这一问题,采用基于电流分解的功率控制策略,可以使微电网在无通信线路情况下可靠的实现并网和孤立运行两种模式的无缝切换。该控制方式提高了系统的稳定性和可靠性,实现了分布式电源的控制。最后通过Matlab/simulink验证了低压微电网系统采用该控制策略的可行性。更多还原

【Abstract】 The key of Micro-grid technology is distributed generations’ coordinated control,the premise is the rapidity and accuracy of power controlling.To solve this problem,a power control strategy that based on current decomposition is proposed,which can achieve seamless switching to/from connected and islanded modes between the micro-grid and the main grid without the need of any communication facility.With this strategy,the control of the distributed energy sources may be realized and the stability and reliability of the system be enhanced.The feasibility of the control strategy to low voltage micro-grid is verified by the simulation based on Matlab/Simulink.更多还原