Journal of Electrical Engineering ›› 2023, Vol. 18 ›› Issue (2): 89-96.doi: 10.11985/2023.02.009

Previous Articles     Next Articles

扫码分享

Power Distribution Strategy of Hybrid Distribution Transformer Interconnection System Based on Time Consistency

WAN Xi1(), LU Wenqin1(), XIA Tianlei1, YAN Han2, WANG Jianhua2   

  1. 1. Changzhou Power Supply Branch, State Grid Jiangsu Electric Power Co., Ltd., Changzhou 213002
    2. School of Electrical Engineering, Southeast University, Nanjing 210096
  • Received:2022-01-28 Revised:2022-09-28 Online:2023-06-25 Published:2023-07-12

Abstract:

Hybrid distribution transformer is a new type of intelligent transformer, which is composed of power frequency multi-winding transformer and power electronic converter. Therefore, the structure of AC/DC distribution network based on hybrid distribution transformer cluster interconnection is analyzed. Aiming at the power distribution problem of interconnecting ports of hybrid distribution transformers in AC and DC distribution networks, a power distribution strategy of interconnecting system of hybrid distribution transformers based on time consistency algorithm is designed. The distributed power consumption and power complementarity of different stations are realized while the power balance between the stations and the distribution system is maintained. At the same time, the application of the consistency algorithm enables each station to obtain global information only by communicating with neighboring stations under the sparse communication mode, which provides the basis for distributed control. Finally, the effectiveness of the proposed control strategy is verified by Matlab simulation.

Key words: Hybrid distribution transformer, consistency algorithm, interconnect port, power distribution strategy

CLC Number: