A Novel PMSG based WECs with SMC for Wind Farm Commitment using Battery Charging System

This paper represents an application of matrix converter in wind energy conversion systems (WECs) as well as for wind farm commitment by using battery charging system. Sparse Matrix Converter (SMC) having reduced switch count has been implemented in WECs which provides the same performance as conventional Indirect Matrix Converter (IMC) with less switching loss and less cost due to the reduced number of switches. The battery charging system is integrated with the DC link of SMC which leads to eliminating the use of AC-DC rectifier for the battery charging operation. The control logic is implemented in such a way that during high wind speed, the battery is charged from WECs, and during low wind speed, the power demand is fulfilled by the battery power. Voltage Oriented Control Scheme (VOC) has been implemented to extract maximum power from WECs. Both active and reactive power has been controlled in the VOC scheme. In a battery charging system, a current control loop is used to control the battery current. Space Vector Pulse Width Modulation (SVPWM) has been used for switching of SMC to convert variable frequency voltage to the standard fixed frequency voltage. The proposed work is validated using MATLAB/Simulink to achieve constant power at the demand side irrespective of variable wind speed.