Journal of South China University of Technology (Natural Science Edition) ›› 2007, Vol. 35 ›› Issue (10): 20-25,48.

• Electronics, Communication & Automation Technology • Previous Articles     Next Articles

Design of Power Conditioning System for Fuel Cell Power Plant

Huang Shi-sheng  Tang Zhao-yang  Wang Zhen-min  Chen Yi-ting   

  1. School of Mechanical Engineering , South China Univ. of Tech. , Guangzhou 510640 , Guangdong , China,
  • Received:2007-03-02 Online:2007-10-25 Published:2007-10-25
  • Contact: Huang Shi-sheng (born in 1938), male , professor,doctoral supervisor, mainly researches on digital power source and inverter power supply for welding. E-mail:sshuang@scut. edu. cn
  • About author:Huang Shi-sheng (born in 1938), male , professor,doctoral supervisor, mainly researches on digital power source and inverter power supply for welding.
  • Supported by:

    Supported by a grant from the Major Programs of Science and Technology Foundation of Guangdong Province Industrγ(124B2041570)

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Abstract:

The power conditioning system of a fuel cell power plant is very important to the reliability and efficiencyof the power plant system as well as to the quality of the output waveform. In this paper , the optimizedcooperation between the main circuit structure of the power conditioner and the fuel cell parameters is investigatedby simulation and experiment , and the law of designing efficient main circuit for the power conditioning systemis proposed. By investigating the mathematical model of the inverter system , some guidance is provided forthe inverter output waveform control. A digital intelligent control system with good practicability , high performanceand low cost is then designed , in which the output waveform control is emphasized. Moreover , the waveformcontrol scheme based on the sliding-mode control policy is investigated , and is then testified by experiments.It is found that the proposed system satisfies the requirements of the power plant , and possesses good reliability, high output waveform quality and great efficiency.

Key words: fuel cell power plallt, power conditioning system, inverter, waveform control, sliding-mode control