Common-Mode Voltage Reduction for Matrix Converters Using All Valid Switch States

EMC’04/Sendai COMMON-MODE NOISE REDUCTION TECHNIQUES FOR SWITCHED-MODE POWER CONVERTERS

In various kinds of switched-mode power converters, conducted noise due to switching operation frequently causes interference with other electronic equipment. This paper focuses on the common-mode conducted noise generated in switched-mode power converters and presents three examples of noise reduction techniques. First, the common-mode conducted noise is reduced in a common-source type active-...

Reduction of the common mode voltage of a matrix converter fed direct torque control

The work presented in this paper proposes an approach to reduce the common mode voltage at the output of matrix converters when a direct torque control scheme is employed to drive a permanent magnet synchronous motor. A mathematical analysis of the common mode voltage at the output of matrix converters is firstly carried out which is then corroborated by simulation results. Based on this analys...

Direct Torque Control Algorithm for the Reduction of Common Mode Voltage Using Look-up Tables

This paper has described the application of the newly developed direct torque control (DTC) scheme for the reduction of common mode voltage of an induction motor drive. This DTC scheme for the reduction of common mode voltage does not use any zero voltage vectors. To validate the proposed algorithm, numerical simulation has been carried out using MATLAB-Simulink and results are presented and co...

Transformer Shielding Technique for Common Mode Noise Reduction in Switch Mode Power Supplies

Technical Report: Optimal Current Trajectories for Power Converters with Minimal Common Mode Voltage

This article addresses the topic of computing optimized pulse patterns with common mode voltage constraints. The main thrust is to obtain tractable reformulations of the CMV constraints in the frequency domain in order to avoid complex mixed time-frequency formulations. The resulting optimization problem is a nonlinear one for which efficient numerical solvers are readily available. Moreover, w...