News Column

New Engineering Research Study Findings Have Been Reported by S.N. Kumar and Colleagues

June 18, 2014

By a News Reporter-Staff News Editor at Journal of Engineering -- New research on Engineering Research is the subject of a report. According to news reporting originating in Coimbatore, India, by VerticalNews journalists, research stated, "In power electronics, the pulse width modulation (PWM) inverter is one of the families of electrical circuits that converts the electrical supply from one level to another using semiconductor-based electronic switches. The important characteristic of these types of circuits is that the switches are operated only in one of two states: ON or OFF."

The news reporters obtained a quote from the research, "The continuous conduction operations of these transitions cause switching power losses, which lead to power loss in PWM inverter. The purpose of the switch is to assist the process of transferring power from source to load. So, these power losses affect the performance and efficiency of the load. To overcome these problems, in this paper, asymmetric space vector pulse width modulation (ASVPWM) technique is proposed. In the proposed ASVM, the additional voltage sectors' switching states are determined by state transition matrix. Subsequently, using the proposed technique, the speed of the induction motor (IM) is controlled. The error speed and change of error speed of an IM are calculated using a fuzzy logic controller (FLC). The output of FLC is applied to the ASVPWM inverter and the stability of the IM is improved."

According to the news reporters, the research concluded: "Then, the switching loss and harmonics effect of the proposed ASVPWM inverter are analyzed."

For more information on this research see: Asymmetric SVM Technique for Minimizing Switching Loss of Inverter. Arabian Journal for Science and Engineering, 2014;39(4):3123-3136. Arabian Journal for Science and Engineering can be contacted at: Springer Heidelberg, Tiergartenstrasse 17, D-69121 Heidelberg, Germany. (Springer -; Arabian Journal for Science and Engineering -

Our news correspondents report that additional information may be obtained by contacting S.N. Kumar, Sri Krishna Coll Technol, Dept. of EEE, Coimbatore 641042, Tamil Nadu, India. Additional authors for this research include S. Vijayan and E.N. Kumar.

Keywords for this news article include: Asia, India, Coimbatore, Engineering Research

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Source: Journal of Engineering

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