Reduction of electromagnetic interference usingfilter design for voltage in induction motors

Fortunately, the use of electric vehicle technology has increased dramatically as environmentalchanges have emerged around the world. Based on these issues, this paper focuses on thedrive used in more economical electric vehicles. In general electric vehicles, induction motorsare used because they have excellent features such as high starting torque and high efficiency.The motor drive is driven by the high switching frequency PWM inverter supplied through theDC source, as the high switching frequency common mode voltage (CM) is generated at thestator input motor terminals. This creates a shaft voltage across the motor air gap andincreases motor bearing current. This causes premature damage to engine reliability andlongevity. To compensate for this problem, an advanced active filter is designed to suppressthe common mode voltage. and also analyze the effect of electromagnetic interference (EMI)on the drive under test (DUT). The above system will be initially implemented in electricalsoftware tools such as MATLAB/SIMULATION to verify the results, suitable for electric vehicleapplications, especially for induction motor drives.

Keywords:

Electromagnetic Interference (EMI) , induction motor , Motor drive