소형풍력발전기를 위한 시뮬레이터 개발에 관한 연구

Abstract

As the Paris Agreement takes into effect, the reduction of greenhouse gas emissions is mandatory. It would be inevitable to develop and apply new and renewable energies which are one of the best ways to replace fossil fuels in order to reduce emissions. Most of all, wind power generator produces electricity by converting wind power to energy, drawing much attention as one of new and renewable energies after the Paris Agreement’s conclusion. Above the rest, small wind power generation system is highly regarded for its handy installation, so various forms of blades and towers are being produced in the light of balance with the surroundings. There had been wind tunnel experiments with similar environment to the actual wind power by embodying wind power generation system. However, it had been costly and limited in time and space. Therefore, this paper means to draw the similar result to the actual wind tunnel experiment by producing a wind power generation simulator. The simulator is composed of induction motor, generator, inverter, battery controller and battery. Since the rotation speed of the wind power generator blade is variable in response to counter electro-motive force of the battery and the generator, Matlab-Simulink is used for the simulation in order to figure out the behavior properties of helical blade for this paper. Motor control algorithm and maximum power point tracking(MPPT) control algorithm are developed for the motor to control behavior properties derived from the simulation. In doing so, this paper has compared energy production from generator according to the rotation speed of each blade, with energy production from actual wind tunnel experiment. The result shows the similar conclusions with a 5 percent margin of error.