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MOSFET enabled low-voltage high-current DC traction drive: a pioneering concept for battery electric vehicles
Mittuniversitetet, Fakulteten för naturvetenskap, teknik och medier, Institutionen för elektronikkonstruktion.
2019 (engelsk)Licentiatavhandling, med artikler (Annet vitenskapelig)
sted, utgiver, år, opplag, sider
Sundsvall: Mid Sweden University , 2019. , s. 48
Serie
Mid Sweden University licentiate thesis, ISSN 1652-8948 ; 153
HSV kategori
Identifikatorer
URN: urn:nbn:se:miun:diva-36840ISBN: 978-91-88527-90-5 (tryckt)OAI: oai:DiVA.org:miun-36840DiVA, id: diva2:1342247
Presentation
2019-06-17, O102, Sundsvall, 14:00 (engelsk)
Veileder
Prosjekter
SMART (Smarta system och tjänster för ett effektivt och innovativt samhälle)Tilgjengelig fra: 2019-08-13 Laget: 2019-08-13 Sist oppdatert: 2020-01-29bibliografisk kontrollert
Delarbeid
1. Air-gap flux density measurement system for verification of permanent magnet motor FEM model
Åpne denne publikasjonen i ny fane eller vindu >>Air-gap flux density measurement system for verification of permanent magnet motor FEM model
2015 (engelsk)Inngår i: IECON 2015 - 41st Annual Conference of the IEEE Industrial Electronics Society, Institute of Electrical and Electronics Engineers (IEEE), 2015, s. 445-450, artikkel-id 7392140Konferansepaper, Publicerat paper (Fagfellevurdert)
Abstract [en]

To verify the FEM simulation of the air-gap flux density, it is necessary to measure the flux density distribution as function of the angular machine position. This paper presents a scalable 3-D direct air-gap flux density magnitude measurement system for rotating electrical machines. A combination of eight linear Hall effect flux sensors and a rotary encoder is used to measure the flux density magnitude as function of the angular machine position. The system is designed for permanent magnet motors with an air gap of at least 1 mm, but can also be used for other types of machines. The miniaturized sensor array with the flux sensors is 0.7 mm thick, and measures the distribution of the air-gap flux density magnitude in a range of ±2 T along the rotor axis. The design of the measurement system is described and tested on a prototype of an electronically commutated permanent magnet DC motor. The obtained measurement results are compared with the FEM simulation results of the prototype motor. A good match between the simulated and measured flux density magnitude is shown. The conclusions presented in this study, are used to further optimize the simulation model and the prototype motor.

sted, utgiver, år, opplag, sider
Institute of Electrical and Electronics Engineers (IEEE), 2015
Emneord
air-gap flux density measurement, FEM, LHEFS, linear Hall effect sensor, Permanent magnet machines, PM machines
HSV kategori
Identifikatorer
urn:nbn:se:miun:diva-28495 (URN)10.1109/IECON.2015.7392140 (DOI)000382950700089 ()2-s2.0-84973160983 (Scopus ID)9781479917624 (ISBN)
Konferanse
41st Annual Conference of the IEEE Industrial Electronics Society, IECON 2015; Pacifico YokohamaYokohama; Japan; 9 November 2015 through 12 November 2015; Category numberCFP15IEC-ART; Code 119153
Merknad

Conference Paper

Tilgjengelig fra: 2016-07-22 Laget: 2016-07-21 Sist oppdatert: 2020-01-29bibliografisk kontrollert
2. Investigation of a 2 V 1.1 kW MOSFET commutated DC motor
Åpne denne publikasjonen i ny fane eller vindu >>Investigation of a 2 V 1.1 kW MOSFET commutated DC motor
2016 (engelsk)Inngår i: Proceedings - 2016 IEEE International Power Electronics and Motion Control Conference (PEMC), IEEE, 2016, s. 586-593, artikkel-id 7752061Konferansepaper, Publicerat paper (Fagfellevurdert)
Abstract [en]

This paper proposes an extremely-low voltage high current MOSFET-based drive architecture. A single-turn multiphase winding design allows a copper fill factor approaching one. The single-turn coil design leads to a low EMF voltage and high current design which requires a matched drive system. To identify the technical design obstacles and verify the feasibility of the proposed architecture, a small scale prototype is built and successfully tested. The described prototype consists of an extremely-low voltage 13-phase single-turn coil permanent magnet DC motor and MOSFET-based commutator. The prototype's locked rotor-torque and no-load power consumption, as well as the EMF voltage measurements are presented and the DC motor constants are extracted. The experimental results from the prototype measurements indicate a promising potential for cost-effective extremely-low voltage high current MOSFET-based drive systems.

sted, utgiver, år, opplag, sider
IEEE, 2016
Emneord
DC motor drives, MOSFET, coils, commutator motors, copper, electric potential, machine windings, permanent magnet motors, power consumption, rotors, voltage measurement, EMF voltage measurements, MOSFET commutated DC motor, copper fill factor, extremely-low voltage 13-phase single-turn coil permanent magnet DC motor, extremely-low voltage high current MOSFET-based drive architecture, locked rotor-torque power consumption, matched drive system, no-load power consumption, power 1.1 kW, single-turn coil design, single-turn multiphase winding design, voltage 2 V, Commutation, DC motors, Induction motors, Windings, brushless DC motor, drive system, electronic commutation, extremely-low voltage, single-turn coil
HSV kategori
Identifikatorer
urn:nbn:se:miun:diva-29846 (URN)10.1109/EPEPEMC.2016.7752061 (DOI)000390590000087 ()2-s2.0-85008259872 (Scopus ID)STC (Lokal ID)978-1-5090-1798-0 (ISBN)STC (Arkivnummer)STC (OAI)
Konferanse
17th IEEE International Power Electronics and Motion Control Conference, PEMC 2016; Festival and Congress CentreVarna; Bulgaria; 25 September 2016 through 28 September 2016
Prosjekter
SMART (Smarta system och tjänster för ett effektivt och innovativt samhälle)
Tilgjengelig fra: 2017-01-10 Laget: 2017-01-10 Sist oppdatert: 2020-01-29bibliografisk kontrollert
3. Initial characterization of a 2V 1.1kW MOSFET commutated DC motor
Åpne denne publikasjonen i ny fane eller vindu >>Initial characterization of a 2V 1.1kW MOSFET commutated DC motor
2016 (engelsk)Inngår i: IECON 2016 - 42nd Annual Conference of the IEEE Industrial Electronics Society, IEEE, 2016, s. 4287-4292, artikkel-id 7794029Konferansepaper, Publicerat paper (Fagfellevurdert)
Abstract [en]

Rapid development of extremely-low voltage high current MOSFETs allows reversing common design principles to explore new applications, such as battery powered traction drives. This enables the usage of multi-phase single-turn stator windings which can achieve a copper fill factor close to one. This paper briefly describes the proposed 2V, 1.1kW MOSFET commutated 13-phase permanent magnet DC motor and presents the efficiency and resistive loss measurements of the first prototype. The motor was successfully run with drive currents up to 520 A. Most of the obtained losses were resistive contact losses due to the flexible winding connections, less than 6% are dedicated to the MOSFETs. The results show that such a high current drive system is feasible and has great potential for further improvements, which is supported by the rapid development of extremely-low voltage high current semiconductors.

sted, utgiver, år, opplag, sider
IEEE, 2016
Serie
IEEE Industrial Electronics Society, ISSN 1553-572X
Emneord
Commutation, Current measurement, MOSFET, Stator windings, Torque, Torque measurement, brushless DC motor, drive system, electronic commutation, extremely-low voltage, single-turn coil
HSV kategori
Identifikatorer
urn:nbn:se:miun:diva-29845 (URN)10.1109/IECON.2016.7794029 (DOI)000399031204094 ()2-s2.0-85010042097 (Scopus ID)STC (Lokal ID)STC (Arkivnummer)STC (OAI)
Konferanse
42nd Conference of the Industrial Electronics Society, IECON 2016; Palazzo dei CongressiFlorence; Italy; 24 October 2016 through 27 October 2016
Prosjekter
SMART (Smarta system och tjänster för ett effektivt och innovativt samhälle)
Tilgjengelig fra: 2017-01-10 Laget: 2017-01-10 Sist oppdatert: 2020-01-29bibliografisk kontrollert
4. A 2.5 v 600 a mosfet-based DC traction motor
Åpne denne publikasjonen i ny fane eller vindu >>A 2.5 v 600 a mosfet-based DC traction motor
2019 (engelsk)Inngår i: Proceedings of the IEEE International Conference on Industrial Technology, Institute of Electrical and Electronics Engineers (IEEE), 2019, s. 213-218, artikkel-id 8755146Konferansepaper, Publicerat paper (Fagfellevurdert)
Abstract [en]

A high copper fill factor allows reducing the resistive losses responsible for more than 50 % of the losses in today's most commonly used electrical motors. Single-turn windings achieve a copper fill factor close to one. Furthermore, they do not suffer from turn to turn faults and provide a low thermal resistance between winding and stator. The reduced EMF of single-turn winding configurations promotes the use of extra-low voltage high current MOSFETs. Rapid development of these MOSFETs allows reversing common design principles to explore new applications, such as battery electric traction drives. This paper presents a 2.5 V 1 kW MOSFET driven 13-phase permanent magnet DC motor with a single-turn winding configuration. The motor prototype with a copper fill factor of 0.84 was tested with continuous drive currents up to 600 A. The measured torque-efficiency map shows that such a high-current concept with voltages below 60 V is feasible using today's extremely low-voltage high current semiconductors. Due to the rapid development of such switches, there is great potential in this concept for further improvements. This work presents a small-scale version of the high-current drive, which is part of the development of an extra-low voltage traction drive concept. 

sted, utgiver, år, opplag, sider
Institute of Electrical and Electronics Engineers (IEEE), 2019
Emneord
Brushless DC motor, High-current, Low-voltage, MOSFET, SELV, Single-turn winding, Traction drive
HSV kategori
Identifikatorer
urn:nbn:se:miun:diva-36837 (URN)10.1109/ICIT.2019.8755146 (DOI)000490548300032 ()2-s2.0-85069037482 (Scopus ID)9781538663769 (ISBN)
Konferanse
2019 IEEE International Conference on Industrial Technology, ICIT 2019; Melbourne Convention and Exhibition Centre, Melbourne, Australia, 13 February 2019 through 15 February 2019
Prosjekter
SMART (Smarta system och tjänster för ett effektivt och innovativt samhälle)
Tilgjengelig fra: 2019-08-13 Laget: 2019-08-13 Sist oppdatert: 2020-02-19bibliografisk kontrollert

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