共直流母线型的分布式新能源发电系统协调控制技术研究

Study on Coordination Control Technology of Distributed Generation System with a Common DC Bus

随着分布式新能源发电的快速发展,新能源并网问题受到广泛的关注。本文针对共直流母线型的分布式新能源发电系统,采用双向直流变换电路拓扑结构,提出基于下垂控制的直流母线电压协调控制策略。并利用实验测试验证了研究成果的实效性。

With the rapid development of distributed generation(DG),the problems on the DG integration have drawn much attention.Towards the DG system with a common DC bus,on the basis of the bi-directional DC conversion circuit topology,a droop-control-based coordination scheme is proposed for the DC bus voltage control in this paper.The effectiveness and practicability of the proposed scheme are validated through experimenting with the scheme on the DG test platform.