The impact of variable DC-Bus Voltage Control on the inverter lifetime in electric vehicle applications

The reliability of the power converters in electric vehicle applications has been a great concern. As most power converters are not designed with redundancy, a malfunction of any component in the converter may prevent the vehicle to operate. Thermal cycling of the power devices is one of the main c...

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Main Authors: Anas, Ibrahim, Muhamad Zahim, Sujod
Format: Conference or Workshop Item
Language:English
Published: IEEE 2020
Subjects:
Online Access:http://umpir.ump.edu.my/id/eprint/28924/
http://umpir.ump.edu.my/id/eprint/28924/1/The%20Impact%20of%20Variable%20DC-Bus%20Voltage%20Control%20on%20the%20Inverter1.pdf
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author Anas, Ibrahim
Muhamad Zahim, Sujod
author_facet Anas, Ibrahim
Muhamad Zahim, Sujod
author_sort Anas, Ibrahim
building UMP Institutional Repository
collection Online Access
description The reliability of the power converters in electric vehicle applications has been a great concern. As most power converters are not designed with redundancy, a malfunction of any component in the converter may prevent the vehicle to operate. Thermal cycling of the power devices is one of the main causes of failure in the power converter. Since the temperature and power losses of a power device are proportional, thermal cycling can be reduced by controlling one of the loss-related variables, such as the dc-bus voltage. For instance, variable dc-bus voltage control which adjusts the dc-bus voltage to the required motor stator voltage, has been widely investigated in the literature as an effective approach to reduce inverter power losses. In this paper, the effectiveness of this strategy in comparison with constant dc-bus voltage control is analyzed in terms of lifetime improvement. The analysis is carried out under Artemis urban and US06 driving cycles, which are used to obtain the thermal loading of the inverter power devices. Then, a lifetime model that explores the link between the thermal loading and lifetime consumption is presented. The performance analysis is validated through MATLAB Simulink which reveals that, variable dc-bus voltage control has the ability to improve the lifetime of the inverter by a factor of 5.06 and 3.43 under Artemis urban and US06 driving cycles, respectively.
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format Conference or Workshop Item
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institution Universiti Malaysia Pahang
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language English
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publishDate 2020
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spelling ump-289242020-10-08T01:16:26Z http://umpir.ump.edu.my/id/eprint/28924/ The impact of variable DC-Bus Voltage Control on the inverter lifetime in electric vehicle applications Anas, Ibrahim Muhamad Zahim, Sujod TK Electrical engineering. Electronics Nuclear engineering The reliability of the power converters in electric vehicle applications has been a great concern. As most power converters are not designed with redundancy, a malfunction of any component in the converter may prevent the vehicle to operate. Thermal cycling of the power devices is one of the main causes of failure in the power converter. Since the temperature and power losses of a power device are proportional, thermal cycling can be reduced by controlling one of the loss-related variables, such as the dc-bus voltage. For instance, variable dc-bus voltage control which adjusts the dc-bus voltage to the required motor stator voltage, has been widely investigated in the literature as an effective approach to reduce inverter power losses. In this paper, the effectiveness of this strategy in comparison with constant dc-bus voltage control is analyzed in terms of lifetime improvement. The analysis is carried out under Artemis urban and US06 driving cycles, which are used to obtain the thermal loading of the inverter power devices. Then, a lifetime model that explores the link between the thermal loading and lifetime consumption is presented. The performance analysis is validated through MATLAB Simulink which reveals that, variable dc-bus voltage control has the ability to improve the lifetime of the inverter by a factor of 5.06 and 3.43 under Artemis urban and US06 driving cycles, respectively. IEEE 2020 Conference or Workshop Item PeerReviewed pdf en http://umpir.ump.edu.my/id/eprint/28924/1/The%20Impact%20of%20Variable%20DC-Bus%20Voltage%20Control%20on%20the%20Inverter1.pdf Anas, Ibrahim and Muhamad Zahim, Sujod (2020) The impact of variable DC-Bus Voltage Control on the inverter lifetime in electric vehicle applications. In: IEEE Symposium on Industrial Electronics & Applications (ISIEA2020) , 17 July 2020 , TBD, Malaysia. pp. 1-6.. ISBN 978-1-7281-6614-8 (Published) https://doi.org/10.1109/ISIEA49364.2020.9188096
spellingShingle TK Electrical engineering. Electronics Nuclear engineering
Anas, Ibrahim
Muhamad Zahim, Sujod
The impact of variable DC-Bus Voltage Control on the inverter lifetime in electric vehicle applications
title The impact of variable DC-Bus Voltage Control on the inverter lifetime in electric vehicle applications
title_full The impact of variable DC-Bus Voltage Control on the inverter lifetime in electric vehicle applications
title_fullStr The impact of variable DC-Bus Voltage Control on the inverter lifetime in electric vehicle applications
title_full_unstemmed The impact of variable DC-Bus Voltage Control on the inverter lifetime in electric vehicle applications
title_short The impact of variable DC-Bus Voltage Control on the inverter lifetime in electric vehicle applications
title_sort impact of variable dc-bus voltage control on the inverter lifetime in electric vehicle applications
topic TK Electrical engineering. Electronics Nuclear engineering
url http://umpir.ump.edu.my/id/eprint/28924/
http://umpir.ump.edu.my/id/eprint/28924/
http://umpir.ump.edu.my/id/eprint/28924/1/The%20Impact%20of%20Variable%20DC-Bus%20Voltage%20Control%20on%20the%20Inverter1.pdf