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Two Cascade Control Strategy of Generalized Electric Spring

Xiaohu WANG, Yubin DUAN, Yi WEI, Xinyuan CHEN, Huang ZHUN, Chaohui ZHAO

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Summary :

With the gradually increase of the application of new energy in microgrids, Electric Spring (ES), as a new type of distributed compensation power electronic device has been widely studied. The Generalized Electric Spring (G-ES) is an improved topology, and the space limitation problem in the traditional topology is solved. Because of the mode of G-ES use in the power grid, a reasonable solution to the voltage loss of the critical section feeder is needed. In this paper, the voltage balance equation based on the feedforward compensation coefficient is established, and a two cascade control strategy based on the equation is studied. The first stage of the two cascade control strategy is to use communication means to realize the allocation of feedforward compensation coefficients, and the second stage is to use the coefficients to realize feedforward fixed angle control. Simulation analysis shows that the proposed control strategy does not affect the control accuracy of the critical load (CL), and effectively improves the operational range of the G-ES.

Publication
IEICE TRANSACTIONS on Communications Vol.E106-B No.11 pp.1102-1108
Publication Date
2023/11/01
Publicized
2023/06/05
Online ISSN
1745-1345
DOI
10.1587/transcom.2022EBP3200
Type of Manuscript
PAPER
Category
Energy in Electronics Communications

Authors

Xiaohu WANG
  Shanghai DianJi University
Yubin DUAN
  Shanghai DianJi University
Yi WEI
  Shanghai DianJi University
Xinyuan CHEN
  Shanghai DianJi University
Huang ZHUN
  Shanghai DianJi University
Chaohui ZHAO
  Shanghai DianJi University

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