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An energy-saving scheme of motor drive systems based on ultracapacitors

  • Harbin Institute of Technology

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

In order to prevent DC link voltage pump during braking, a paralleled release circuit composed of chopper and resistor is often employed. As a result of energy waste on the resistor, the efficiency of the motor drive system is low in the case of frequent braking. To improve the efficiency, an energy-saving scheme of motor drive systems based on ultracapacitors is proposed in this paper. An energy storage system (ESS) paralleled with the DC link of the motor drive is adopted in the scheme, which is composed of a bidirectional DC-DC converter and ultracapacitors. The ESS can realize recycling of the braking energy. Compared with PWM rectifier, this scheme can avoid various technical requirements for grid-connected inverters.

Original languageEnglish
Title of host publicationEnergy Research and Power Engineering 2014
PublisherTrans Tech Publications Ltd
Pages1043-1047
Number of pages5
ISBN (Print)9783038351603
DOIs
StatePublished - 2014
Event2014 International Conference on Energy Research and Power Engineering, ERPE 2014 - Dalian, China
Duration: 17 May 201418 May 2014

Publication series

NameAdvanced Materials Research
Volume986-987
ISSN (Print)1022-6680
ISSN (Electronic)1662-8985

Conference

Conference2014 International Conference on Energy Research and Power Engineering, ERPE 2014
Country/TerritoryChina
CityDalian
Period17/05/1418/05/14

Keywords

  • DC-DC converter
  • Energy-saving scheme
  • Motor drive system
  • Ultracapacitor

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