Sewell, H I and Stone, D A and Bingham, Chris (2003) Dynamic load impedance matching for induction heater systems. The International Journal for Computation and Mathematics in Electrical and Electronic Engineering, 22 (1). pp. 30-38. ISSN 0332-1649

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Abstract

It is not normally possible to heat a static steel work-piece past the Curie temperature without incurring reduced inverter utilisation. Since the inverter cost increases with rated power, reduced utilisation implies an increase in investment costs for a given performance. The paper shows that third-order resonant work-head circuits can intrinsically allow better utilisation of the inverter for variable-load heating operations. A further refinement is then shown to allow control of the load impedance, thereby allowing the utilisation to approach 100 percent over the heating cycles.

Item Type:	Article
Additional Information:	It is not normally possible to heat a static steel work-piece past the Curie temperature without incurring reduced inverter utilisation. Since the inverter cost increases with rated power, reduced utilisation implies an increase in investment costs for a given performance. The paper shows that third-order resonant work-head circuits can intrinsically allow better utilisation of the inverter for variable-load heating operations. A further refinement is then shown to allow control of the load impedance, thereby allowing the utilisation to approach 100 percent over the heating cycles.
Keywords:	induction heating
Subjects:	H Engineering > H600 Electronic and Electrical Engineering
Divisions:	College of Sciences > Faculty of Science > Lincoln School of Engineering
Depositing User:	Paul Stewart
Date Deposited:	11 Jun 2010 13:56
Last Modified:	13 Mar 2013 08:39
URI:	http://eprints.lincoln.ac.uk/id/eprint/2675

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