Dynamics of a minimum DC link voltage driving method to reduce system loss for hybrid electric vehicles

Jongwon Heo, Kentaro Matsuo, Pisithkun Hen, Keiichiro Kondo

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Citations (Scopus)

Abstract

In the proposed method, inverter DC link voltage is controlled in proportion to the motor terminal voltage rather than maintaining a constant value. The motor can be driven at lower voltage and driving point remains at where current is at its smallest so system losses can be reduced. In this paper, in order to realize such control method, it is studied about the transient state and the DC link voltage controller gain. A sudden change in the DC link voltage during transient state can cause the vibration to the battery current. But rapid convergence to the target voltage is required for high speed torque response. It is confirmed that there is a trade-off relationship between the torque response speed and the battery current stability depending on the proportional gain of the DC link voltage controller. And the dynamics are verified by scale down experimental system with a motor rated 1kW.

Original languageEnglish
Title of host publication2017 IEEE International Electric Machines and Drives Conference, IEMDC 2017
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781509042814
DOIs
Publication statusPublished - 2017 Aug 3
Externally publishedYes
Event2017 IEEE International Electric Machines and Drives Conference, IEMDC 2017 - Miami, United States
Duration: 2017 May 212017 May 24

Other

Other2017 IEEE International Electric Machines and Drives Conference, IEMDC 2017
CountryUnited States
CityMiami
Period17/5/2117/5/24

Keywords

  • DC Link Voltage
  • DC/DC Converter
  • Single Pulse Mode
  • Torque Feedback Control

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering
  • Mechanical Engineering

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  • Cite this

    Heo, J., Matsuo, K., Hen, P., & Kondo, K. (2017). Dynamics of a minimum DC link voltage driving method to reduce system loss for hybrid electric vehicles. In 2017 IEEE International Electric Machines and Drives Conference, IEMDC 2017 [8002254] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/IEMDC.2017.8002254