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http://dx.doi.org/10.6113/TKPE.2010.15.4.288

Implementation of an FPGA-based Multi-Carrier PWM Techniques for Multilevel Inverter  

Chun, Tae-Won (울산대 전기전자정보시스템공학부)
Lee, Hong-Hee (울산대 전기전자정보시스템공학부)
Kim, Heung-Geun (경북대 전기공학과)
Nho, Eui-Cheol (부경대 전기공학과)
Publication Information
The Transactions of the Korean Institute of Power Electronics / v.15, no.4, 2010 , pp. 288-295 More about this Journal
Abstract
Multi-level inverters have drawn much of attention in recent years because it can meet the demand of high power applications and good power quality associated with reduced harmonic distortion. As the number of voltage level increases, field programmable gate arrays (FPGAs) are suitable for the implementation of multi-level modulation algorithm. This paper proposes the implementation method for generating PWM pulses at the three phase diode clamped five-level inverter using FPGA. The strategy for communicating stably the data of three-phase reference voltages between the DSP and FPGA is suggested. The techniques for generating PWM signals based on a multi-carrier modulation method are carried out through the experiments with 32-bit DSP and Cyclone-III FPGA.
Keywords
FPGA; Multi-level inverter; PWM signal generator; Multi-carrier;
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