Coordinated Control and Operation Stability Analysis of Multi-port DC Substation Applied in Power Distribution System

被引：0
|
作者：
Teng, Baichuan [1 ]
Ma, Jianjun [1 ]
Hou, Chuanchuan [1 ]
Zhu, Miao [1 ]
机构：
[1] Shanghai Jiao Tong Univ, Sch Elect Informat & Elect Engn, Shanghai, Peoples R China
来源：
2023 IEEE/IAS INDUSTRIAL AND COMMERCIAL POWER SYSTEM ASIA, I&CPS ASIA | 2023年
关键词：
DC substation; multiterminal dc node; DC-DC power conversion; small signal; D-Q impedance model; stability;
D O I：
10.1109/ICPSASIA58343.2023.1029493
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
DC distribution system has been accepted as a promising solution for future power system construction. The multiport DC substation severing as dc hub in intricate meshed grid takes role of energy routing and voltage dispatching. In this article, an overall control strategy is proposed for a multiport dc substation applied in city power distribution system and enables to achieve transmitted power coordinate control with four terminals connected with dc grids. Operation stability research on DC substation under different working conditions are conducted based on generation Nyquist criterion (GNC) and D-Q small-signal impedance model derived in a uniform rotating coordinate. Besides, accuracy of theoretical impedance model is validated by measurements in Matlab/Simulink. Finally, simulation results are carried out in PLECS to test the working performance of the multiport DC substation under coordinated control and verify correctness of analysis on operation stability.
引用
收藏
页码：627 / 634
页数：8
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