Journal ArticleDOI
Voltage Control for Enhanced Power Electronic Efficiency in Series Hybrid Electric Vehicles
TLDR
A dc-link voltage control scheme by which the power losses associated with the power electronic converters of a series hybrid electric vehicle (HEV) powertrain are reduced substantially is presented, and proves most effective for vehicles with high hybridization factor driving in an urban environment.Abstract:
The paper presents a dc-link voltage control scheme by which the power losses associated with the power electronic converters of a series hybrid electric vehicle (HEV) powertrain are reduced substantially. A dc-link commonly connects the three powertrain branches associated with series HEVs, presently interfaced by a three-phase rectifier, a three-phase inverter, and a dual-active bridge (DAB) dc–dc converter. Dynamic efficiency models of the converters are developed, and a methodology is proposed by which the dc-link voltage is varied with respect to its default value, based on the ratio between the battery and dc-link voltages. The voltage control scheme introduced varies the phase shift between the gating signals of the two DAB converter bridges, proportionally to the ratio of converter input voltage to output voltage referred to the transformer primary. This level of instantaneous control forces the converter to operate in boost mode when the battery charges and buck mode when the battery discharges, allowing the converter to persistently avoid hard switching losses over its entire operating range. The control scheme is tested in simulations with a full HEV model by comparing its performance with constant voltage and unity voltage conversion ratio PI control schemes. The scheme proves most effective for vehicles with high hybridization factor driving in an urban environment.read more
Citations
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Climate change 2014 - Mitigation of climate change
TL;DR: The work of the IPCC Working Group III 5th Assessment report as mentioned in this paper is a comprehensive, objective and policy neutral assessment of the current scientific knowledge on mitigating climate change, which has been extensively reviewed by experts and governments to ensure quality and comprehensiveness.
Journal ArticleDOI
A comprehensive review on hybrid electric vehicles: architectures and components
TL;DR: An extensive review on essential components used in HEVs such as their architectures with advantages and disadvantages, choice of bidirectional converter to obtain high efficiency, combining ultracapacitor with battery to extend the battery life, traction motors’ role and their suitability for a particular application are presented.
Journal ArticleDOI
A comprehensive review on choice of hybrid vehicles and power converters, control strategies for hybrid electric vehicles
V. Krithika,C. Subramani +1 more
Journal ArticleDOI
Threshold-changing control strategy for series hybrid electric vehicles
TL;DR: A novel and superior rule-based control strategy for series hybrid electric vehicles that is claimed to outperform all the existingRule-based schemes in terms of fuel economy and which is remarkably close to that achieved by the optimization-based Equivalent consumption minimization strategy.
Journal ArticleDOI
Improving the Overall Efficiency of Automotive Inverters Using a Multilevel Converter Composed of Low Voltage Si mosfet s
TL;DR: Si mosfet-based multilevel inverters are proved in this paper to be an appropriate option to improve the efficiency and reduce the cost of electric powertrains.
References
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Climate change 2014 - Mitigation of climate change
TL;DR: The work of the IPCC Working Group III 5th Assessment report as mentioned in this paper is a comprehensive, objective and policy neutral assessment of the current scientific knowledge on mitigating climate change, which has been extensively reviewed by experts and governments to ensure quality and comprehensiveness.
Book
Climate change 2014 : mitigation of climate change
TL;DR: The third part of the Fifth Assessment Report (AR5) of the Intergovernmental Panel on Climate Change (IPCC) as discussed by the authors, Climate Change 2013/2014, was prepared by its Working Group III.
Book
Modern Electric, Hybrid Electric, and Fuel Cell Vehicles
TL;DR: In this paper, the authors present an introduction to automotive technology, with specic reference to battery electric, hybrid electric, and fuel cell electric vehicles, in which the profound knowledge, mathematical modeling, simulations, and control are clearly presented.