Online Optimal Pulsewidth Modulation (OPWM)

Naziha Ahmad Azli

ISBN 10: 3847370529 / ISBN 13: 9783847370529

Published by LAP LAMBERT Academic Publishing Jul 2012, 2012

About this Item

Neuware -Online Optimal Pulsewidth Modulation (OPWM) for a Multilevel Inverter explains a control scheme in controlling a 5-level Cascaded H-bridge Multilevel Inverter (CHMI) output voltage based on the OPWM switching strategies. For better CHMI output voltage magnitude control resolution, a curve fitting technique (CFT) for online computation of the OPWM switching angles is presented. Focus is given on the CFT and the multilevel control design aspect of the control scheme for the CHMI. This control scheme is generally suitable for AC power supply applications that do not involve variations in the multilevel inverter operating frequency. In addition, its suitability is also identified for applications that require high quality output voltage but at the same time do not allow increase in the multilevel inverter power devices switching frequency. This may be due to the technological limits of the power devices employed for high voltage applications or certain environmental condition. To show the feasibility of the control scheme, results of a simulation study and experimental work on a 5-level CHMI operation are presented.Books on Demand GmbH, Überseering 33, 22297 Hamburg 100 pp. Englisch.

Seller Inventory # 9783847370529

Bibliographic Details

• Title: Online Optimal Pulsewidth Modulation (OPWM)
• Publisher: LAP LAMBERT Academic Publishing Jul 2012
• Publication Date: 2012
• Language: English
• ISBN 10: 3847370529
• ISBN 13: 9783847370529
• Binding: Taschenbuch
• Condition: Neu
• Dimensions: 220W x 150H x 6D millimeters 220 millimeters width by 150 millimeters height by 6 millimeters depth
• Weight: 167 grams

About this title

Synopsis

Online Optimal Pulsewidth Modulation (OPWM) for a Multilevel Inverter explains a control scheme in controlling a 5-level Cascaded H-bridge Multilevel Inverter (CHMI) output voltage based on the OPWM switching strategies. For better CHMI output voltage magnitude control resolution, a curve fitting technique (CFT) for online computation of the OPWM switching angles is presented. Focus is given on the CFT and the multilevel control design aspect of the control scheme for the CHMI. This control scheme is generally suitable for AC power supply applications that do not involve variations in the multilevel inverter operating frequency. In addition, its suitability is also identified for applications that require high quality output voltage but at the same time do not allow increase in the multilevel inverter power devices switching frequency. This may be due to the technological limits of the power devices employed for high voltage applications or certain environmental condition. To show the feasibility of the control scheme, results of a simulation study and experimental work on a 5-level CHMI operation are presented.

About the Author

Dr. Naziha Ahmad Azli is currently an Associate Professor at the Faculty of Electrical Engineering, Universiti Teknologi Malaysia, Johor Bahru, Malaysia. Her research interests include control techniques for power converters, power quality and power conditioning for alternate/renewable energy systems.