Design and Validation of Wind Turbine’s Power Simulation by a Remote Controlled AC Motor

Abstract

A statistical analysis of 10 minutes interval wind data at 20 m height for different location of Bangladesh has been made. The data has been shorted in sequence of appropriate frequency as hourly, daily and monthly mean wind speed. The gusty wind behaviour has also been analyzed. The data has been presented and analyzed in velocity friquency bar graph, energy bar graph, velocity duration curve etc. Two important paramets Weibull shape factor “k” and Weibull scale factor “c” have been obtained from the data. Weibull function F(v), Weibull probability density function f(v), velocity duration function S(v) and available energy in the wind (wh/m2) have also been obtained from the wind data. This paper also presents a way of determining the long lasting strongest gusts at the Sitakunda. While searching the wind power potential in the windy sites of Bangladesh for electricity generation, it has been found that Sitakunda have some unusual wind characteristics in August and September. In the irregular region of wind speed, the value of Weibull shape factor and Weibull scale factor was out of range. During analysis of wind data of Sitakunda, a long lasting strong gusty wind was obtained there. Then a horizontal axis wind turbine has been designed for the selected site Kuakata. For the simulation of power in replaced of designed wind turbine a remote controlled motor has been coupled with a generator. The motor speed has been controlled by PWM signal in its ten steps. A couple microcontrollers have been used for the simulation. High radio frequency remote have been designed to control the motor. At any step, the motor RPM, generator output voltage and switch position has been digitally displayed in the LCD display screen.