Journal of Power Electronics

  • 제12권4호
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  • Pages.595-603
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  • 2012
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  • 1598-2092(pISSN)
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  • 2093-4718(eISSN)
전력전자학회 (The Korean Institute of Power Electronics)
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Parallel Connected High Frequency AC Link Inverters Based on Full Digital Control

  • Sha, Deshang (School of Automation, Beijing Institute of Technology) ;
  • Guo, Zhiqiang (School of Automation, Beijing Institute of Technology) ;
  • Deng, Kai (School of Electrical Engineering, Southeast University) ;
  • Liao, Xiaozhong (School of Automation, Beijing Institute of Technology)
  • 투고 : 2010.09.14
  • 발행 : 2012.07.20
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초록

This paper presents a full digital control strategy for parallel connected modular inverter systems. Each modular inverter is a high frequency (HF) AC link inverter which is composed of a HF inverter and a HF transformer followed by a cycloconverter. To achieve equal sharing of the load current and to suppress the circulating currents among the modules, a three-loop control strategy, consisting of a common output voltage regulation (OVR) loop, individual circulating current suppression (CCS) loops and individual inner current tracking (ICT) loops, is proposed. The ICT loops are implemented with predictive current control from which high precision current tracking can be obtained. The effectiveness of the proposed control strategy is verified by simulation and experimental results from parallel connected two full-bridge HF AC link inverter modules.

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참고문헌

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피인용 문헌

  1. Study on an Optimal Control Method for Energy Injection Resonant AC/AC High Frequency Converters vol.13, pp.2, 2013, https://doi.org/10.6113/JPE.2013.13.2.197
  2. Current sharing in parallel connected boost converters 2016, https://doi.org/10.1049/joe.2016.0238
  3. Experimental Validation of a Cascaded Single Phase H-Bridge Inverter with a Simplified Switching Algorithm vol.14, pp.3, 2014, https://doi.org/10.6113/JPE.2014.14.3.507
  4. Control of Parallel Connected Three-Phase PWM Converters without Inter-Module Reactors vol.15, pp.1, 2015, https://doi.org/10.6113/JPE.2015.15.1.116