SVPWM Techinque with Reduced Common Mode Voltage for Three-Phase Voltage Source Inverter

The high frequency switching in PWM power inverters causes high frequency common-mode voltage components, inducing electromagnetic interference in communication systems, overvoltage stress in the winding insulation and bearing currents through the machines for drive applications, which, over time, causes damages and premature bearing failures. In this paper is presented a novel SVPWM technique to reduce the high frequencies components in the common-mode voltage for three-phase PWM inverters.