84350 20200716101522.0 doi 10.1049/iet-epa.2018.5469 sideral 113105 ART-2019-113105 eng Sanz, Alberto Universidad de Zaragoza Analytical maximum torque per volt control strategy of an interior permanent magnet synchronous motor with very low battery voltage 2019 Access copy available to the general public Unrestricted The operation of an interior permanent magnet synchronous motor included in an electric power steering system is related to two demanding requirements: (i) the low-voltage DC source pushes the motor to a deep flux weakening region, and (ii) the motor is so optimised that it can withstand only few cycles at nominal torque. Owing to that, maximum torque per ampere (MTPA) and maximum torque per volt (MTPV) current reference generation strategies are common in this type of application. Most of the published MTPA or MTPV strategies are applied to standard voltage motors, so stator resistance is typically neglected, leading to simpler equations. Other works consider the stator resistance but, as the resulting equations are complex, look-up tables or numerically adjusted polynomials are employed in current generation tasks. This work presents analytical expressions allowing the exact computing of current references. These expressions include stator resistances. The battery voltage is considered as an input variable, together with motor speed and reference torque, and direct and quadrature current references are the output variables. Contrary to look-up tables or numerically adjusted polynomials, the proposed expressions can take into account any parameter variation during real-time operation. Simulation and experimental results validate the proposed approach. info:eu-repo/semantics/openAccess All rights reserved http://www.europeana.eu/rights/rr-f/ 2.834 2019 ENGINEERING, ELECTRICAL & ELECTRONIC 104 / 266 = 0.391 2019 Q2 T2 1.01 2019 Electrical and Electronic Engineering 2019 Q1 info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion (orcid)0000-0002-4834-940X Oyarbide, Estanis Universidad de Zaragoza Gálvez, Rubén (orcid)0000-0001-9334-4870 Bernal, Carlos Universidad de Zaragoza (orcid)0000-0002-4592-769X Molina, Pilar Universidad de Zaragoza San Vicente, Igor 5008 785 Universidad de Zaragoza Dpto. Ingeniería Electrón.Com. Área Tecnología Electrónica 5008 X Universidad de Zaragoza Dpto. Ingeniería Electrón.Com. Proy. investigación JBA 13, 7 (2019), 1042-1050 IET Electric Power Applications IET Electric Power Applications 1751-8660 680036 http://zaguan.unizar.es/record/84350/files/texto_completo.pdf Postprint 695963 http://zaguan.unizar.es/record/84350/files/texto_completo.jpg?subformat=icon icon Postprint oai:zaguan.unizar.es:84350 articulos driver 2020-07-16-09:27:35 ARTICLE