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Smoothing Control of Wind Farm Output Fluctuation by New Scheme with Energy Storage System
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| Author(s) |
Rion TAKAHASHI, Masachika NAKATANI, Junji TAMURA, Muyeen S.M., Masatoshi SUGIMASA, Akiyoshi KOMURA, Motoo FUTAMI, Masaya ICHINOSE, Kazumasa IDE |
| Abstract |
Electrical power generation from wind power is increasing rapidly nowadays. Therefore, wind farm output power fluctuation due to wind speed variations is becoming the major concern for Transmission System Operators (TSOs) or grid companies. As a result, it is needed to connect an energy storage system (ESS) to wind farm through power converters to smoothen the wind farm output fluctuations. As power losses occur in the power converters, it is important to reduce the losses to achieve effective use of renewable energy. In this paper, a new connection scheme of ESS to wind farm is proposed in which ESS is connected to the DC bus circuit of wind generator without using a PWM based DC-DC converter. Comparative analysis of the loss characteristics between the proposed system and the conventional one in which ESS is connected to the DC bus circuit with using a PWM based DC-DC converter is presented. The proposed system can simplify overall control scheme and improve the efficiency considerably. The loss characteristics are studied by simulation analyses on the laboratory standard power system software, PSCAD/EMTDC, using the practical (measured) wind speed data. |
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| Filename: | 0384-epe2011-full-15403850.pdf |
| Filesize: | 501.1 KB |
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| Type |
Members Only |
| Date |
Last modified 2012-01-26 by System |
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