Published Paper Details:

This work presents a methodology to apply space vector modulation to a three-phase three-switch two-level Y-connected unidirectional pulse width modulation (PWM) rectifier.Converter switching stages are analyzed to determine switch control signals for space vector modulation. A switching sequence is proposed in order to minimize the number of switch commutations and to reduce the switching losses. PWM rectifiers have been implemented in many applications like vector controlled drives for control of induction motors, traction,interface for renewable energy sources etc., PWM rectifiers are also used in distributed power generation applications such as micro turbines , fuel cells and wind mills. Conventional PWM converters are used for wind turbines that have a permanent Magnet alternator.The three phase current controlled voltage source boost type PWM rectifier is commonly used due to following advantages. Low total harmonic distortion of the input current,Regulation of output DC voltage, Bidirectional power flow.The major advantages of using the pulse width modulation technique is the reduction of higher order harmonic. It also makes it possible to control the magnitude of the output voltage and improve the power factor by forcing the switches to follow the input voltage waveform. Artificial neural networks is used for pulse width control