Open AccessPowertrain EV synchronous reluctance motor design with redundant topology with novel control
Author(s) -
Herrera Danilo,
Villegas Javier,
Galván Eduardo,
Carrasco Juan Manuel
Publication year - 2019
Publication title -
iet electric power applications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.815
H-Index - 97
eISSN - 1751-8679
pISSN - 1751-8660
DOI - 10.1049/iet-epa.2018.5891
Subject(s) - powertrain , magnetic reluctance , torque , control theory (sociology) , engineering , converters , automotive engineering , switched reluctance motor , power (physics) , galvanic isolation , motor drive , computer science , rotor (electric) , control (management) , voltage , electrical engineering , mechanical engineering , physics , quantum mechanics , artificial intelligence , magnet , transformer , thermodynamics
A doubly three‐phase fed synchronous reluctance machine (SynRM) is designed for electrical vehicle powertrain application. SynRM aims to deliver instant power and high power density, high torque at low speeds and high power at high speeds, wide speed range, high efficiency throughout its range of operation, ruggedness, high safety at a reasonable cost. Under these requirements, a 60 kW, 9000 rpm and 400 Nm SynRM has been designed. The main objective is to demonstrate the SynRM powertrain operation behaviour and determinate the operation points electrically and thermally. To reach the proposed SynRM goal, a new direct torque control algorithm based on output regulation subspace theory control is presented. The winding motor topology is galvanic isolated, so it is possible to operate with the six phases directly to the load and because of that, the combination with a back‐to‐back (B2B) converter becomes so profitable. To validate the system, two B2B full‐converters and two motors (SynRM and induction machine) were used in a real test bench. Finally, a simulated and real efficiency map is obtained covering different drive cycles range. Some remarks about normal and failure mode of operation are presented.