H8 Inverter for Common-Mode Voltage Reduction in Electric Drives Article Swipe

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Inverter Common-mode signal Decoupling (probability) Voltage reduction Voltage Pulse-width modulation Electronic engineering Reduction (mathematics) Engineering Clamping Three-phase Control theory (sociology) Computer science Electrical engineering Mathematics Control engineering Control (management) Digital signal processing Analog signal Mechanical engineering Artificial intelligence Geometry

Luca Concari , Davide Barater , Giampaolo Buticchi , Carlo Concari , Marco Liserre ·

YOU? · · 2016 · Open Access · · DOI: https://doi.org/10.1109/tia.2016.2581763 · OA: W2437725033

This paper presents a modified two-level three-phase inverter for the reduction of the leakage current. With respect to a traditional two-level inverter, the proposed solution reduces the common-mode voltage (CMV), both in amplitude and frequency. Between the dc source and the traditional three-phase bridge, two active dc-decoupling devices and a voltage-clamping network have been added. A dedicated control strategy was developed adopting a modified space vector pulse-width modulation, oriented to the reduction of the CMV. Simulations showing the good performance of the solution are presented. A preliminary prototype was developed and experimental results are presented.