DocumentCode :
465533
Title :
Inverter Non-Idealities Override by Repetitive Control
Author :
Bolognani, Silverio ; Peretti, Luca ; Zigliotto, Mauro
Author_Institution :
Univ. of Padova, Padova
Volume :
1
fYear :
2007
fDate :
3-5 May 2007
Firstpage :
71
Lastpage :
76
Abstract :
High performance sensorless AC drives require the exact knowledge of the motor phase voltages in the whole speed range. The use of voltage sensors may be eschewed if the reference voltage signals, generated by the control algorithm, can be used instead. To this aim, an accurate compensation of most of inverter non-idealities is stringent. This paper presents a novel technique for the cancellation of inverter non-idealities, based on repetitive control. The main advantage is that the compensation automatically includes the IGBT parasitic effects during current zero-crossing, whose exact knowledge is one of the major problems in most of the standard dead-time cancellation techniques. Despite its elaborated theoretical background, the method requires few computational resources and it is easy to implement. Mathematical developments, design hints and an extensive batch of successful experimental tests are included in the paper.
Keywords :
AC motor drives; compensation; electric sensing devices; insulated gate bipolar transistors; IGBT parasitic effects; compensation; current zero-crossing; inverter nonidealities; motor phase voltages; repetitive control; sensorless AC drives; voltage sensors; Application software; Distortion measurement; Drives; Insulated gate bipolar transistors; Inverters; Sensorless control; Table lookup; Testing; Voltage control; Voltage measurement;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Electric Machines & Drives Conference, 2007. IEMDC '07. IEEE International
Conference_Location :
Antalya
Print_ISBN :
1-4244-0742-7
Electronic_ISBN :
1-4244-0743-5
Type :
conf
DOI :
10.1109/IEMDC.2007.383555
Filename :
4270617
Link To Document :
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