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Control strategy for a distributed DC power system with renewable energy
- Kurohane, Kyohei, Uehara, Akie, Senjyu, Tomonobu, Yona, Atsushi, Urasaki, Naomitsu, Funabashi, Toshihisa, Kim, Chul-Hwan
- Renewable energy 2011 v.36 no.1 pp. 42-49
- batteries, controllers, generators (equipment), power generation, wind power, wind turbines
- 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.