Journal of Power Electronics

  • 제13권3호
  • /
  • Pages.479-486
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  • 2013
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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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Wireless Paralleled Control Strategy of Three-phase Inverter Modules for Islanding Distributed Generation Systems

  • Guo, Zhiqiang (School of Automation, Beijing Institute of Technology) ;
  • Sha, Deshang (School of Automation, Beijing Institute of Technology) ;
  • Liao, Xiaozhong (School of Automation, Beijing Institute of Technology)
  • 투고 : 2012.07.02
  • 발행 : 2013.05.20
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초록

This paper presents a control strategy for distributed systems, which can be used in islanded microgrids. The control strategy is based on the droop method, which uses locally measured feedback to achieve load current sharing. Instead of the traditional droop method, an improved one is implemented. A virtual inductor in the synchronous frame for three-phase inverters is proposed to deal with the coupling of the frequency and the amplitude related to the active and reactive power. Compared with the traditional virtual inductor, the proposed virtual inductor is not affected by high frequency noises because it avoids differential calculations. A model is given for the distributed generation system, which is beneficial for the design of the droop coefficients and the value of the virtual inductor. The effectiveness of the proposed control strategy is verified by simulation and experiment results.

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참고문헌

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피인용 문헌

  1. Droop Method for High-Capacity Parallel Inverters in Islanded Mode Using Virtual Inductor vol.20, pp.1, 2015, https://doi.org/10.6113/TKPE.2015.20.1.81
  2. Parallel Operation of Microgrid Inverters Based on Adaptive Sliding-Mode and Wireless Load-Sharing Controls vol.15, pp.3, 2015, https://doi.org/10.6113/JPE.2015.15.3.741
  3. Current sharing in parallel connected boost converters 2016, https://doi.org/10.1049/joe.2016.0238
  4. Secondary Voltage Control for Reactive Power Sharing in an Islanded Microgrid vol.16, pp.1, 2016, https://doi.org/10.6113/JPE.2016.16.1.329
  5. A Droop Method for High Capacity Parallel Inverters Considering Accurate Real Power Sharing vol.16, pp.1, 2016, https://doi.org/10.6113/JPE.2016.16.1.38
  6. 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