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基于分层控制结构,提出一种稀疏通信下的分布式电源微增率一致性加速算法。该方法无需中央控制器,借助稀疏通信网络实现分布式电源的三次分层控制并加快收敛速度。在该分层控制中,一次控制采用线性下垂控制策略;二次控制仅借助本地频率信息实现系统频率调节;三次控制考虑各分布式电源的成本微增率,利用稀疏不完备的通信网络传递分布式电源成本微增率信息,并结合非线性下垂控制实现微增率的一致性,各分布式电源能较快地收敛至等微增率点。该算法所构建的稀疏通信网络拓扑可以是任意的,对于通信网络的单双向及连通性都没有要求。仿真算例验证了该算法的有效性。
Based on the hierarchical control structure, an accelerated algorithm of distributed power micro-increment consistency is proposed under sparse communication. This method does not need the central controller, with the help of sparse communication network, it achieves the third hierarchical control of distributed power and accelerates the convergence speed. In this hierarchical control, the primary droop control strategy is linear droop control. The secondary control only uses the local frequency information to realize the system frequency regulation. The third control considers the incremental cost of each distributed power supply, and uses the sparse and incomplete communication network to transmit the distribution Power supply micro-increase rate information, combined with non-linear droop control to achieve the consistency of micro-increase rate, the distributed power can quickly converge to other micro-increase rate point. The sparse communication network topology constructed by this algorithm can be arbitrary, and there is no requirement for the unidirectional and connectivity of the communication network. The simulation example verifies the effectiveness of the algorithm.