Control strategy for a distributed DC power system with renewable energy |
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| Authors: | Kyohei Kurohane Akie Uehara Tomonobu Senjyu Atsushi Yona Naomitsu Urasaki Toshihisa Funabashi Chul-Hwan Kim |
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| Affiliation: | 1. University of the Ryukyus, 1 Senbaru, Nishihara-cho, Nakagami, Okinawa 903-0213, Japan;2. Meidensha Corporation, 36-2 Nihonbashi-Hakozakicho, Chuo-ku, Tokyo 103-8513, Japan;3. Sungkyunkwan University and NPT Center, Suwon City 440-746, South Korea |
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| Abstract: | This paper deals with a DC-micro-grid with renewable energy. The proposed method is composed of a gearless wind power generation system, a battery, and DC loads in a DC distribution system. The battery helps to avoid the DC over-voltages by absorbing the power of the permanent magnet synchronous generator (PMSG) during line-fault. In addition, the control schemes presented in this paper including the maximum power point tracking (MPPT) control and a pitch angle control for the gearless wind turbine generator. By means of the proposed method, high-reliable power can be supplied to the DC distribution system during the line-fault and stable power supply from the PMSG can be achieved after line-fault clearing. The effectiveness of the proposed method is examined in a MATLAB/Simulink® environment. |
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