Journal of Power Electronics

The Korean Institute of Power Electronics (전력전자학회)
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Common Mode Voltage Cancellation in a Buck-Type Active Front-End Rectifier Topology

  • Aziz, Mohd Junaidi Abdul (Power Electronics and Drive Research Group, Faculty of Electrical Eng., Universiti Teknologi Malaysia) ;
  • Klumpner, Christian (Power Electronics, Machine and Control Group, The University of Nottingham) ;
  • Clare, Jon (Power Electronics, Machine and Control Group, The University of Nottingham)
  • Received : 2011.02.01
  • Published : 2012.03.20
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Abstract

AC/AC power conversion is widely used to feed AC loads with a variable voltage and/or a variable frequency from a constant voltage constant frequency power grid or to connect critical loads to an unreliable power supply while delivering a very balanced and accurate sinusoidal voltage system of constant amplitude and frequency. The load specifications will clearly impose the requirements for the inverter stage of the power converter, while wider ranges of choices are available for the rectifier. This paper investigates the utilization of a buck-type current source rectifier as the active front-end stage of an AC/AC converter for applications that require an adjustable DC-link voltage as well as elimination of the low-frequency common mode voltage. The proposed solution is to utilize a combination of two or more zero current vectors in the Space Vector Modulation (SVM) technique for Current Sources Rectifiers (CSR).

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References

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