Suppression of Fluctuation in Wind Power Generation Output by Controlling Distributed Generator
The installed capacity of wind power generation (WG) has been increasing in many countries. However, the power output of WG fluctuates within the short period depending on the wind speed; therefore, the frequency of electric power systems may be disturbed. Then, some energy storage systems such as batteries should be equipped for suppressing the fluctuations in WG output. However, the initial cost of energy storage system is still expensive and prevents from promoting further installation of WG. The authors have investigated the potential of the controllable distributed generator (CDG) such as biomass gas turbine generator as an alternative to the energy storage system. This paper presents a control method of CDG for suppressing the fluctuation in WG output. Since the dynamic response of CDG is slower than that of the battery, CDG may not be able to follow severe wind power variations. Therefore, in the proposed method, residual control error of CDG can be compensated by the battery with fast dynamic response. By combining CDG and battery, the capacity of battery required for suppressing the fluctuations of WG can be reduced and total cost composed of the CDG and battery can be decreased than the case controlled only by battery.
Wind power generation Storage battery system DG Controllable DG Dynamic response Suppression of fluctuation Technical requirement Biomass gas turbine
Kenji Yokoi Ryoichi Hara Hiroyuki Kita Masaya Ichinose Motoo Futami
Graduate school of information science and technology, Hokkaido University, N14W9, Sapporo, Hokkaido Graduate school of information science and technology, Hokkaido University, N14W9, Sapporo, Hokkaido Hitachi Research Laboratory, Hitachi, Ltd., Ohmika-cho 7-1-1, Hitachi, Ibaraki 319-1292, JAPAN
国际会议
The International Conference on Electrical Engineering 2009(2009 电机工程国际会议)
沈阳
英文
1-5
2009-07-05（万方平台首次上网日期，不代表论文的发表时间）