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ZHENG Zheng,LI Qiusi,QIAO Meiying.Control Strategy for Cascaded Rectifier Based on Novel Decoupling Control[J].JOURNAL OF POWER SUPPLY,2018,16(5):1-8
Control Strategy for Cascaded Rectifier Based on Novel Decoupling Control
Received:September 07, 2016  Revised:April 16, 2018
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DOI:10.13234/j.issn.2095-2805.2018.5.1
Keywords:cascaded rectifier  decoupling control  two-dimensional modulation
Fund Project:National Natural Foundation Project (U1504518); Key scientific research projects of Education Bureau of Henan Province(13160010) ; Key scientific research projects of the Higher Education Institutions of Henan Province(13150045)
        
AuthorInstitutionEmail
ZHENG Zheng School of Electrical Engineering and Automation, Henan Polytechnic University, Jiaozuo , China
LI Qiusi School of Electrical Engineering and Automation, Henan Polytechnic University, Jiaozuo , China 491550582@qq.com
QIAO Meiying School of Electrical Engineering and Automation, Henan Polytechnic University, Jiaozuo , China
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Abstract:
      In consideration of the nonlinear characteristics of a cascaded H-bridge rectifier and through the analysis of the topology of a single-phase two-level cascaded H-bridge rectifier, a two-dimensional modulation control strategy is proposed based on the decoupling control of AC-side synthesized voltage of cascaded H-bridge. Using the novel decoupling control method and the two-dimensional modulation algorithm, the response speed of DC-side voltage and the system's anti-disturbance capability are improved. A simulation model based on MATLAB/Simulink and a hardware-in-the-loop real-time simulation experiment platform based on RT-lab were built up, and simulation and experimental results verified the validity and effectiveness of the proposed control strategy.
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