Constant output under transient condition in wind turbine using novel boost converter

摘要

The performance of the wind turbine is greatly depends on the force of the wind. As for as, Indian environmental condition concern constant flow of the wind is an unexpected one. During the soft start of the wind turbine a fluctuation occurred and due to the change in the flow of the wind the revolution speed is changed. At the same time the output voltage is directly proportional to the speed of the DC generator connected with the wind turbine. Due to the fluctuation in the flow of air the output voltage is greatly disturbed, so that it is important to boost up the voltage and get constant output. DC to DC boost converters are particularly useful in stepping up the voltage from a battery or DC generator to match the operating voltage range of inverter or constant voltage loads. Even though lot of converters are introduced, the novel and advanced converter using the snubber capacitor is used in this proposed converter, it has more advantage and making the switching of the switches soft and boosting the voltage higher than the conventional boost converter in the same frequency and in same duty cycle. Here how the output is being constant in the variable voltage condition of the wind turbine by the boost converter and parameters used are investigated. Moreover, the various mode of operation of the boost converter during the transient period is discussed. The simulation model is generated and outputs are obtained by using Matlab Simulink.