在介绍典型的虚拟同步发电机技术以及传统的频率下垂控制策略的基础上,提出一种新型的虚拟同步发电机技术,让微电网既有下垂控制特性,又具备类似同步发电机转子的特性。通过分析对比不同频率下系统的稳定性,验证了控制策略的有效性。
This paper described the typical virtual synchronous generator technology as well as traditional droop control strategy and proposed a new virtual synchronous generator technology that would allow micro-grid to have droop control characteristics with similar characteristics of synchronous generator rotor. Through analysis and comparison of the stability of the system at different frequencies,simulation results showed the effectiveness of the control strategy.