Study on hybrid control strategy for bi-directional power conversion system

In view of harmonic current problems existing in the bi-directional energy control of power conversion system (PCS), an hybrid control strategy of current waveform based on bi-directional main circuit topology is presented. In order to decrease the volume and weight of filter inductance in the DC si...

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Bibliographic Details
Published in2018 13th IEEE Conference on Industrial Electronics and Applications (ICIEA) pp. 227 - 231
Main Authors Yang, Huibiao, Bai, Cunxi, Li, Xutao, Xue, Fei, Ge, Yixian
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.05.2018
Subjects
Batteries
Bidirectional control
carrier phase-shifting
energy storage converter
Harmonic analysis
harmonic restraining
Inductance
Mathematical model
Power harmonic filters
Voltage control
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Summary:In view of harmonic current problems existing in the bi-directional energy control of power conversion system (PCS), an hybrid control strategy of current waveform based on bi-directional main circuit topology is presented. In order to decrease the volume and weight of filter inductance in the DC side, a method of multiple carrier phase-shifting is adopted to restrain ripple and reduce switching loss of converter. In order to improve the power quality of the AC side, total harmonic distortion (THD) in grid-connected current of converter is effectively restrained and high dynamic response speed is ensured. On this basis, a 100kW bi-directional energy storage converter has been developed. The effectiveness and feasibility of the proposed control strategy are verified by the experimental results.
ISSN:2158-2297
DOI:10.1109/ICIEA.2018.8397719