Carthy, Sean (1994) State plane analysis of induction hob generators. PhD thesis, Dublin City University.
Abstract
Induction cooking hobs have greatly gained in popularity m Europe during the 1980's. This fact has focused attention on the particular problems encountered in their design. To this day, the design approaches remain largely empirical This thesis presents an analysis technique specially adapted to the induction hob generator
The series resonant converter is seen to be widely used in the induction cooking application. As a first step, a technique for determining steady-state operation of the converter is presented. This is done for all the operation modes and control schemes encountered. The technique in question is based on the well known state plane but has been adapted for use in induction. This technique is then extended to make use of the properties of the state plane in order to demonstrate the behaviour of the converter under various load and control conditions. At this point, the didactic qualities of the state plane representation are exploited to their full in order to demonstrate the intricate relationships between the operation of the series resonant converter and its load impedance.
All of the work described in the previous paragraph is based on the assumption of knowing the load impedance of the converter. This reveals itself to be a major assumption, given the variety of loads that can be encountered by an induction hob and the difficulties involved in measuring or modelling such a load. In order to allow the verification of this technique with respect to real cases, a load measurement technique is presented. This technique overcomes the pitfalls of existing techniques by carrying out analyses on wave forms measured m-situ while the converter is working. This contrasts with the existing techniques which measure the isolated load at low signal levels.
Metadata
Item Type: | Thesis (PhD) |
---|---|
Date of Award: | 1994 |
Refereed: | No |
Supervisor(s): | Rilly, G and Ringwood, John |
Uncontrolled Keywords: | Induction heating |
Subjects: | Engineering > Electronic engineering |
DCU Faculties and Centres: | DCU Faculties and Schools > Faculty of Engineering and Computing > School of Electronic Engineering |
Use License: | This item is licensed under a Creative Commons Attribution-NonCommercial-No Derivative Works 3.0 License. View License |
ID Code: | 18402 |
Deposited On: | 17 Jul 2013 13:07 by Celine Campbell . Last Modified 17 Jul 2013 13:07 |
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