Modeling and Control for Cage Rotor Dual Mechanical Port Electric Machine–Part I: Model Development

Cai, Haiwei; Xu, Longya

doi:10.1109/tec.2015.2400931

Cited by 23 publications

(9 citation statements)

References 14 publications

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“…The inverters are connected to a common dcbus, supported by a dc-bus capacitor system. The outer rotor can be designed as a cage [16]- [18], PM rotor [19]- [23] or a combination of PMs with a dc-field winding [24], [25] as is the case in this paper. Calculations for an EVT used as power split device with storage and applied within a hybrid electric vehicle (HEV) are given and discussed in [26]- [29] where the focus is merely on the higher system level control.…”

Section: Inner-v Rotorvmentioning

confidence: 99%

Efficiency of a CVT-Operated EVT Experimentally Evaluated Against Half-Toroidal and Push-Belt CVTs

Druant

Vansompel

Belie

et al. 2018

IEEE Trans. Ind. Electron.

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This article describes how an electrical variable transmission (EVT) can be used as alternative for mechanical continuously variable transmission (CVT) systems. An EVT is an electromagnetic power split device having two mechanical and two electrical ports. The speed ratio between both mechanical ports (rotors) can be varied in a continuously variable way, so that this machine can be used as electromagnetic alternative for the mechanical pushbelt and half-toroidal CVT. Its operating principle is based on splitting the power into an electromagnetic direct path and an electrical path involving two inverters connected back-to-back. Its potential use as CVT is investigated by comparing experimental data against toroidal and belt CVT data from literature having comparable power ratings. To this end measurements are performed on a prototype 120 kW permanent magnet EVT.

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Section: Inner-v Rotorvmentioning

confidence: 99%

Efficiency of a CVT-Operated EVT Experimentally Evaluated Against Half-Toroidal and Push-Belt CVTs

Druant

Vansompel

Belie

et al. 2018

IEEE Trans. Ind. Electron.

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“…As a result, the size and cost of the system will be reduced [9]. Considering the main concept of the EVT, different types of modified DMPM has been reported in literature [10]- [15]. In [10] and [11], the single-layer squirrel cage outer rotor based DMP machine (SCDMP) is presented.…”

Section: Introductionmentioning

confidence: 99%

Dual Mechanical Port Machine Based Hybrid Electric Vehicle Using Reduced Switch Converters

et al. 2019

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Due to the increased environmental pollution, hybrid vehicles have attracted enormous attention in today's society. The two most important factors in designing these vehicles are size and weight. For this purpose, some researchers have presented the use of the dual-mechanical-port machine (DMPM) in hybrid electric vehicles (HEVs). This paper presents two modified converter topologies with a reduced number of switching devices for use on DMPM-based HEVs, with the goal of reducing the overall size and weight of the system. Beside the design of the DMPM in the series-parallel HEV structure along with the energy management unit, the conventional back-to-back (BB) converter is replaced with nine-switch (NS) and five-leg (FL) converters. These converters have never been examined for the DMPM-based HEV, and therefore, the objective of this paper is to reveal the operational characteristics and power flow mechanism of this machine using the NS and FL converters. The simulation analysis is carried out using MATLAB/Simulink considering all HEV operational modes. In addition, two proposed and the conventional converters are compared in terms of losses, maximum achievable voltages, required dc-link voltages, the rating of the components, and torque ripple, and finally, a recommendation is made based on the obtained results. INDEX TERMS Back-to-back converter, dual mechanical port machine, five-leg converter, hybrid electric vehicle, nine-switch converter.

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“…Different EVT topologies have been proposed and analyzed in the literature. The authors of [3]- [5] describe the fundamental working principle of the induction-machine-based EVT. Here, the outer rotor consists of a squirrel cage, thus avoiding the need for permanent magnets (PMs).…”

Section: Introductionmentioning

confidence: 99%

Torque Analysis on a Double Rotor Electrical Variable Transmission With Hybrid Excitation

Druant

Vansompel

Belie

et al. 2017

IEEE Trans. Ind. Electron.

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Abstract-An electrical variable transmission (EVT) can be used as a power splitting device in hybrid electrical vehicles. The EVT analyzed in this paper is a rotating field electrical machine having two concentric rotors. On the outer rotor, permanent magnets (PMs) are combined with a dcfield winding, being the first implementation of its kind. The magnetic field in the machine as well as the electromagnetic torque on both rotors are a function of the q-and d-axis currents of the stator and inner rotor, as well as the dc-field current. To describe and fully understand this multiple-input multiple-output machine, this paper gives an overview of the influence of the different current inputs on the flux linkage and torque on both rotors. Focus is given to the hybrid excitation in the d-axis by combining the dc-field current and the alternating currents. This has the advantage compared to other EVT topologies that unwanted stator torque can be avoided without stator d-axis current flux weakening. Results of the analysis are presented by means of the torque to current characteristics of a double rotor PM-assisted EVT, as well as the torque to current ratios. The machine characteristics are finally experimentally verified on a prototype machine.Index Terms-Electrical variable transmission (EVT), hybrid excitation, torque analysis.

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Modeling and Control for Cage Rotor Dual Mechanical Port Electric Machine–Part I: Model Development

Cited by 23 publications

References 14 publications

Efficiency of a CVT-Operated EVT Experimentally Evaluated Against Half-Toroidal and Push-Belt CVTs

Efficiency of a CVT-Operated EVT Experimentally Evaluated Against Half-Toroidal and Push-Belt CVTs

Dual Mechanical Port Machine Based Hybrid Electric Vehicle Using Reduced Switch Converters

Torque Analysis on a Double Rotor Electrical Variable Transmission With Hybrid Excitation

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