Common-Mode Voltage Reduction in VSI-Fed Motor Drives With an Integrated Active Zero-State Switch

Zhe Zhang, Ali M. Bazzi

2020IEEE Journal of Emerging and Selected Topics in Power Electronics30 citationsDOI

Abstract

Common-mode voltage (CMV) produced by voltage source inverters (VSI) is of great concern in motor drive systems. A significant amount of conducted common-mode/bearing current will be induced and will interfere with system operation. As an alternative to inserting bulky passive filters to combat the adverse effect by CMV, this article proposes a new topology of integrated active zero-state switch (IAZS). Minor adjustment to the standard space vector pulsewidth modulation (SVPWM) is proposed to facilitate the use of IAZS, which enables CMV reduction in VSI-fed motor drives. Simulation and experimental results on a commercial VSI are presented as proof of concept to validate the effectiveness of the proposed design in CMV reduction.

Topics & Concepts

Common-mode signalReduction (mathematics)Control theory (sociology)Voltage reductionVoltageMotor driveMode (computer interface)Topology (electrical circuits)Computer scienceEngineeringElectronic engineeringElectrical engineeringMathematicsControl (management)Mechanical engineeringGeometryDigital signal processingOperating systemArtificial intelligenceAnalog signalElectromagnetic Compatibility and Noise SuppressionMultilevel Inverters and ConvertersSilicon Carbide Semiconductor Technologies