抄録
Nowadays the anxiety about drying up of fossil fuels and the global environmental problems such as greenhouse effect by CO2 become serious. Therefore the use of renewal energy, which exists inexhaustibly and does not emit waste matters, is paid attention. Of all natural energy, wind power generation and photovoltaic power generation are most practical in terms of technology and cost. Because the output power of natural energy generation, however, varies with change of weather condition, a hybrid generation system of natural energy and diesel power is considered.
Though it is intended that the hybrid generation system compensates the power variation of natural energy generation by diesel generation, a frequency deviation beyond an allowable limit may be caused by fast power variation of natural power generation. We have focused on the wind/diesel hybrid power system and proposed to install a superconducting magnetic energy storage (SMES) to suppress frequency deviation.
In this paper, we represent the hybrid power system that uses a PI controller to control the SMES and propose to apply pole assignment method to design PI controller. Furthermore, we examine the effect of proposed method by analyzing system eigenvalues and performing transient calculation.
