Title :
Gate drive level intelligence and current sensing for matrix converter current commutation
Author :
Wheeler, Patrick W. ; Clare, Jon C. ; Empringharn, L. ; Bland, Michael ; Apap, Maurice
Author_Institution :
Sch. of Electr. & Electron. Eng., Nottingham Univ., UK
fDate :
4/1/2002 12:00:00 AM
Abstract :
This paper is concerned with the process of current commutation in matrix converters. The mechanisms involved in the commutation process are described and practical waveforms are presented. A novel commutation strategy is described that uses gate drive level intelligence in the form of a field-programmable gate array. Current direction is determined using device voltages and, therefore, the measurement problems associated with all other commutation methods are overcome. Practical results from an 18-kW matrix converter induction motor drive are presented
Keywords :
AC-AC power convertors; commutation; driver circuits; field programmable gate arrays; induction motor drives; switching circuits; 18 kW; commutation process mechanisms; commutation strategy; current direction determination; current sensing; field-programmable gate array; gate drive level intelligence; induction motor drive; matrix converter current commutation; waveforms; Capacitors; Circuits; Commutation; Current measurement; Field programmable gate arrays; Matrix converters; Power engineering and energy; Power harmonic filters; Switches; Voltage;
Journal_Title :
Industrial Electronics, IEEE Transactions on