Abstract
The paper deals with a novel enhanced connection of AC/AC powertrain for HEV hybrid vehicles. The substantial contribution of such a connection is the absence of 4QC auxiliary converter needed for autonomous and hybrid operational modes and its compensation by power-lesser 0×5 matrix converter. The main advantages of a simplified connection are beside smaller auxiliary converter sizing and possible better efficiency of the HEV powertrain. So, powertrain operation in autonomous traction accu-battery modes uses direct 0×5 configuration of traction 3×5 MxC matrix converter and in hybrid modes of ICE engine and accu-battery, besides traction 3×5 MxC matrix converter, uses the auxiliary 0×5 matrix converter. Modeling and simulation using Matlab-Simulink environment of traction powertrain configuration in autonomous modes are presented in the paper, as well as all simulation experiment results.
Highlights
HEV vehicles have an important role in the automotive industry as well as in the national economy and in transport, and traffic services
Mixed AC/DC/AC powertrain based on AC generator, AC/DC front converter, DC interlink, DC/AC end converter (VSI-inverter), and AC traction motor(s); 4
Comparison of 3-Phase VSI Powertrain and 3- Phase Matrix Powertrains. It is shown in the paper [7], [8] that when comparing matrix converter (MxC) with VSI converter with an active front-end for induction motor drive, the matrix converter's semiconductor losses are smaller at full load operation for the same silicon area in both converters (11–22 % depending on switching frequency)
Summary
HEV vehicles have an important role in the automotive industry as well as in the national economy and in transport, and traffic services. The main advantage of the electric motor in the wheel is adjustable traction and individual braking torque with high precision without ingestion gearbox, drive shaft, differential gear, and other complex and heavy parts of the power transmission [3] Among the different number of phases traction generator and traction motor is a three-phase generator and a five-phase motor, i.e., [3×5] direct converter Such a configuration of the AC/AC powertrain makes it possible both pure electric operating modes and/or pure engine mode, as well as hybrid mode: the vehicle is propelled by ICE engine and accubattery energy in parallel operation [1]
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