Three-port single-phase three-wire power converter interface for micro grid |
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| Affiliation: | 1. National Kaohsiung University of Applied Sciences, 415 Jiangong Road, Sanmin District, Kaohsiung 80778, Taiwan;2. National Kaohsiung Marine University, 142 Hai-Jhuan Road, Nanzih District, Kaohsiung 81143, Taiwan;1. Andalusian Institute for Earth System Research, Universidad de Granada, Av. del Mediterráneo s/n., 18006 Granada, Spain;2. Universidad de Málaga, Escuela Técnica Superior de Ingeniería Industrial, Campus de Teatinos, 29071 Málaga, Spain;1. Department of Mechanical Engineering, Recep Tayyip Erdoğam University, 52349 Rize, Turkey;2. Department of Mechanical Engineering, Yildiz Technical University, 34349 Besiktas, Istanbul, Turkey;3. Department of Mechanical Engineering, Istanbul Aydın University, 34455 Florya, Istanbul, Turkey;1. Department of Architecture, The University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo 153-8505, Japan;2. Institute of Industrial Science, The University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo 153-8505, Japan |
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| Abstract: | This paper proposes a three-port single-phase three-wire (TPSPTW) power converter interface integrating an isolated current-fed full-bridge power converter (ICFPC), a three-port power converter (TPPC), a fuel cell and a battery set for micro grid (MG).The ICFPC is used to control the output power of fuel cell and to step-up its output voltage to the voltage of high-voltage DC port of the TPPC. The TPPC can manage the power conversion between the fuel cell, the battery set, the loads and the utility. This power converter interface charges the battery set, outputs AC power and acts as an active power filter (APF) in the grid-connection mode, supplies uninterruptible power to the loads when it operates in the stand-alone mode. The fuel cell outputs a programmed power regardless of whether the power converter interface operates in the grid-connection mode or in the stand-alone mode. The programmed power outputted from the fuel cell is the average power of load under the stand-alone mode. The battery set is used to respond to the varied power of loads under the stand-alone mode. A prototype is developed to verify the performance of power converter interface, and the experimental results are as expected. |
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| Keywords: | Single-phase three-wire Fuel cell Active power filter |
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