Analyzing the On-State Power Dissipation in Stepped-Output Diode-Clamped Multi-Level Inverter
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概要
- 論文の詳細を見る
In renewable power generators, because of high initial cost and duty cycle of systems, efficiency parameter has an important place. For this reason, line frequency controlled multilevel inverters are one of most proper choices for renewable power converters. Among these, diode-clamped multilevel inverter structures are one of most important and best efficient inverters. In this paper, a simple diode-clamped equivalent circuit for exploring the efficiency under resistive loads is proposed, and based on this simple circuit, the on-state power dissipation in improved and original diode-clamped multilevel inverter under resistive loads is analyzed. Then, comparative efficiency equations are extracted for inverters that use metal oxide semiconductor field-effect transistors (MOSFETs) and other p-n junction as switches. These equations enable us to have a better idea of conducting power dissipation in diode-clamped and help us to choose appropriate switches for having a lower on-state power dissipation. Some cases are studied and in the end it is proven that the calculated efficiency under resistive load is a boundary for inductive load with the same impedance in diode-clamped inverter with p-n junction switches. This means that calculating the efficiency under resistive loads enables us to approximately predict efficiency under inductive loads.
- (社)電子情報通信学会の論文
- 2010-12-01
著者
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Mariun Norman
Department Of Electrical And Electronic Engineering Faculty Of Engineering University Putra Malaysia
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Marhaban Mohammad
Department Of Electrical And Electronic Engineering Universiti Putra Malaysia
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Marhaban Mohammad
Department Of Electrical Engineering University Putra Malaysia
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ESFANDIARI Ehsan
Department of Electrical Engineering, University Putra Malaysia
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ZAKARIA Azmi
Department of Electrical Engineering, University Putra Malaysia
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Zakaria Azmi
Department Of Electrical Engineering University Putra Malaysia
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Mariun Norman
Department Of Electrical Engineering University Putra Malaysia
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Esfandiari Ehsan
Department Of Electrical Engineering University Putra Malaysia
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Marhaban Mohammad
Department Of Electrical And Electronic Engineering Faculty Of Engineering University Putra Malaysia
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