Title :
FPGA-implemented carrier based SPWM multilevel controller
Author :
Ebersohn, G. ; Gitau, M.N.
Author_Institution :
Dept. of Electr. Electron. & Comput. Eng., Univ. of Pretoria, South Africa
Abstract :
Multilevel converters were originally developed for high voltage high current applications. These topologies have several advantages to offer that include voltage blocking requirements for the individual components in the switch matrix, lower EMI generation, lower THD, better output waveform as well as higher efficiency for a given quality of output waveform. However, all these benefits comes with the price of added controller and circuit complexity. The aim of This work is to show a total digital solution to the generation of control signals for a seven level diode clamped multilevel inverter.
Keywords :
PWM invertors; circuit complexity; clamps; diodes; electromagnetic interference; field programmable gate arrays; harmonic distortion; EMI generation; FPGA based SPWM multilevel controller; FPGA-implemented carrier; THD; circuit complexity; clamped multilevel inverter; seven level diodes; switch matrix; total harmonic distortions; voltage blocking; waveform quality; Control systems; Costs; Digital signal processing; Matrix converters; Pulse width modulation; Pulse width modulation inverters; Signal generators; Switches; Topology; Voltage;
Conference_Titel :
AFRICON, 2004. 7th AFRICON Conference in Africa
Print_ISBN :
0-7803-8605-1
DOI :
10.1109/AFRICON.2004.1406873
