• ISSN 0258-2724
  • CN 51-1277/U
  • EI Compendex
  • Scopus
  • Indexed by Core Journals of China, Chinese S&T Journal Citation Reports
  • Chinese S&T Journal Citation Reports
  • Chinese Science Citation Database
Volume 30 Issue 4
Jul.  2017
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Article Contents
LI Qi, YU Shuang, HAN Ying, CHEN Weirong. Active Current Control Method Based on Grid-Connected Proton Exchange Membrane Fuel Cell[J]. Journal of Southwest Jiaotong University, 2017, 30(4): 755-763. doi: 10.3969/j.issn.0258-2724.2017.04.014
Citation: LI Qi, YU Shuang, HAN Ying, CHEN Weirong. Active Current Control Method Based on Grid-Connected Proton Exchange Membrane Fuel Cell[J]. Journal of Southwest Jiaotong University, 2017, 30(4): 755-763. doi: 10.3969/j.issn.0258-2724.2017.04.014

Active Current Control Method Based on Grid-Connected Proton Exchange Membrane Fuel Cell

doi: 10.3969/j.issn.0258-2724.2017.04.014
  • Received Date: 06 Nov 2015
  • Publish Date: 25 Aug 2017
  • The conventional PQ control method fails to effectively respond to load demands because it does not adequately consider the actual operating characteristics of the proton exchange membrane fuel cell (PEMFC) system when the power load changes. In order to ensure that the PEMFC operation system responds accurately and quickly, a model of a PEMFC grid system consisting of a 150 kW PEMFC stack, DC/DC converter, inverter, and filter is developed according to the operation characteristics and PQ control principle of the PEMFC. Then, a PQ control-based active current control method is proposed based on this model. The results of a MATLAB simulation indicate that the proposed active current control method can fulfill the demands of grid connection under both rated and non-rated output power conditions, enabling the grid-connected system to effectively respond to load changes. This actualizes large closed-loop control from the power supply to the interconnection and ensures stability and reliability in the grid system operation with bus current harmonics of 1.76% and 2.89%, whereas the traditional PQ control method can only operate stably when the PEMFC outputs at the rated power (150 kW).

     

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