Adaptive Fuzzy Control for Fuel Reduction of Photovoltaic/Wind/Diesel Power Generating system

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  • 太陽光/風力/ディーゼル発電システムの燃料削減を目的とした適応型ファジィ制御
  • タイヨウコウ フウリョク ディーゼル ハツデン システム ノ ネンリョウ サク

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Abstract

A new adaptive fuzzy control method is developed for reduction of fuel consumption of a diesel generator in a photovoltaic/wind/diesel generating system with a battery. The adaptive fuzzy control method takes two steps of fuzzy inferences. The first fuzzy inference predicts whether the system situation tends to power shortage (s=0) or power surplus (s=1). The input data to the first step are the photovoltaic/wind generator power output PPW and the load demand PL. The second step fuzzy inference determines the diesel generator output. The input data to the second step are s, PPW, PL and the battery charging state. The fuzzy control rules ofs=0 and s=1 are framed by referring to time series results of the system operated by the dynamic programing which is the optimum operation method if time series values of PPW and PL are known. The simulation results show the new adaptive fuzzy control method effectively utilizes the battery to reduce the fuel consumption and suppress the fluctuation of output of the diesel generator.

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