57065 20190709135420.0 doi 10.1109/TPEL.2016.2559160 sideral 95671 ART-2017-95671 eng (orcid)0000-0001-5832-1163 Domínguez, A. Universidad de Zaragoza Reduced-order models of series resonant inverters in induction heating applications 2017 Access copy available to the general public Unrestricted From the controller design framework, a simple analytical model that captures the dominant behavior in the range of interest is the optimal. When modeling resonant circuits, complex mathematical models are obtained. These high-order models are not the most suitable for controller design. Although some assumptions can be made for simplifying these models, variable frequency operation or load uncertainty can make these premises no longer valid. In this work, a systematic modeling order reduction technique, Slowly Varying Amplitude and Phase (SVAP), is considered for obtaining simpler analytical models of resonant inverters. SVAP gives identical results as the classical model-order residualization technique from automatic control theory. A slight modification of SVAP, Slowly Varying Amplitude Derivative and Phase (SVADP) is applied in this paper to obtain a better validity range. SVADP is validated for a half-bridge series resonant inverter (HBSRI) and for a high- order plant, a dual-half bridge series resonant inverter (DHBSRI) giving analytical second-order transfer functions for both topologies. Simulation and experimental results are provided to show the validity range of the reduced-order models. info:eu-repo/grantAgreement/ES/UZ/JIUZ-2015-TEC-12 info:eu-repo/grantAgreement/ES/MINECO/TEC2013-42937-R info:eu-repo/grantAgreement/ES/MINECO/RTC-2014-1847-6 info:eu-repo/grantAgreement/ES/MINECO/FPU13-05982 info:eu-repo/grantAgreement/ES/MINECO/CSD2009-00046 info:eu-repo/semantics/openAccess by http://creativecommons.org/licenses/by/3.0/es/ 6.812 2017 ENGINEERING, ELECTRICAL & ELECTRONIC 14 / 260 = 0.054 2017 Q1 T1 2.215 2017 Electrical and Electronic Engineering 2017 Q1 info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion (orcid)0000-0003-4633-4551 Barragán, L.A. Universidad de Zaragoza (orcid)0000-0002-8007-5613 Artigas, J.I. Universidad de Zaragoza (orcid)0000-0003-1403-1505 Otín Acín, Aránzazu Universidad de Zaragoza (orcid)0000-0002-6881-4209 Urriza, I. Universidad de Zaragoza (orcid)0000-0002-0795-8743 Navarro, D. Universidad de Zaragoza 5008 785 Universidad de Zaragoza Dpto. Ingeniería Electrón.Com. Área Tecnología Electrónica 32, 3 (2017), 2300-2311 IEEE trans. power electron. IEEE Transactions on Power Electronics 0885-8993 1352147 http://zaguan.unizar.es/record/57065/files/texto_completo.pdf Postprint 146904 http://zaguan.unizar.es/record/57065/files/texto_completo.jpg?subformat=icon icon Postprint oai:zaguan.unizar.es:57065 articulos driver 2019-07-09-11:25:41 ARTICLE