Two-Layer Cooperative Control for Multiple Converter-Network Clusters
Two-Layer Cooperative Control for Multiple Converter-Network Clusters
复制标题
多变流器网络集群的两层协同控制
DOI：
10.1109/tcsii.2020.2971085
复制
发表时间：
2020-02
期刊：
影响因子：
--
通讯作者：
Jingang Lai
中科院分区：
文献类型：
--
作者：
Xiaoqing Lu;Jingang Lai
Cooperative control are mainly employed for multi-converter networks due to the distributed nature of renewable resources and communication network limitations. By dividing all converters within each converter-network (CN) cluster into the leader-converters and follower-converters according to their physical cluster topology structure, the leader and follower control layers are respectively formulated. Then a two-layer cooperative strategy is developed, under which the weighted average voltage of all converters can be regulated to their rated references, meanwhile, the accurate current sharing can be simultaneously realized not only within each CN cluster but also among multiple CN clusters. Compared with previous work, the proposed control strategy has the advantages of accurate current sharing, short time consumption and faster convergence. All controllers are fully distributed and can be applied in all sparse two-layer cyber networks, and control time constant condition is derived to ensure the system stability. Different cases in MATLAB/SimPowerSystems are investigated to verify the effectiveness of the results.
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