Coordination control for multi-voltage-level dc grid based on the dc-dc converters
Coordination control for multi-voltage-level dc grid based on the dc-dc converters
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基于DC-DC变换器的多电压等级直流电网协调控制
DOI:
10.1016/j.epsr.2019.106050
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发表时间:
2020
影响因子:
3.9
通讯作者:
Liu Zhijie
中科院分区:
文献类型:
--
作者:
Sun Kaiqi;Li Ke-Jun;Wang Meiyan;Tian Guanyu;Wang Zhuo-di;Liu Zhijie
Dc–dc converters are emerging as a key device for future dc transmission networks. This paper develops a switch mode control and a dc–dc coordination control for dc–dc converters’ coordinated operation in the multi-voltage-level dc grid. The switch mode control is a local controller on the dc–dc converter to enable the automatic switch of the dc–dc operation mode. The dc–dc coordination control is an advanced control based on the switch mode control. With the dc–dc coordination control, unbalanced power from one dc grid could be optimally distributed to other grids, in order to avoid serious power fluctuation events. Simulation results are provided to demonstrate the performance of the switch mode control and dc–dc coordination control.