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

doi:10.1109/IEMDC.2017.8002254

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 proceeding › Conference contribution

7 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 language	English
Title of host publication	2017 IEEE International Electric Machines and Drives Conference, IEMDC 2017
Publisher	Institute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)	9781509042814
DOIs	https://doi.org/10.1109/IEMDC.2017.8002254
Publication status	Published - 2017 Aug 3
Externally published	Yes
Event	2017 IEEE International Electric Machines and Drives Conference, IEMDC 2017 - Miami, United States Duration: 2017 May 21 → 2017 May 24

Other

Other	2017 IEEE International Electric Machines and Drives Conference, IEMDC 2017
Country/Territory	United States
City	Miami
Period	17/5/21 → 17/5/24

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

Access to Document

10.1109/IEMDC.2017.8002254

Cite this

Dynamics of a minimum DC link voltage driving method to reduce system loss for hybrid electric vehicles. / Heo, Jongwon; Matsuo, Kentaro; Hen, Pisithkun et al.
2017 IEEE International Electric Machines and Drives Conference, IEMDC 2017. Institute of Electrical and Electronics Engineers Inc., 2017. 8002254.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

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., 2017 IEEE International Electric Machines and Drives Conference, IEMDC 2017, Miami, United States, 17/5/21. https://doi.org/10.1109/IEMDC.2017.8002254

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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.",

keywords = "DC Link Voltage, DC/DC Converter, Single Pulse Mode, Torque Feedback Control",

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N2 - 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.

AB - 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.

KW - DC Link Voltage

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KW - Single Pulse Mode

KW - Torque Feedback Control

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

Abstract

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Keywords

ASJC Scopus subject areas

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