Characteristic Analysis and Verification of the Magnetic-Field-Modulated Brushless Double-Rotor Machine

Abstract:The paper presents a number of advanced solutions on electric machines and machine-based systems for the powertrain of electric vehicles (EVs). Two types of systems are considered, namely the drive systems designated to the EV propulsion and the power split devices utilized in the popular series-parallel hybrid electric vehicle architecture. After reviewing the main requirements for the electric drive systems, the paper illustrates advanced electric machine topologies, including a stator permanent magnet (stator-PM) motor, a hybrid-excitation motor, a flux memory motor and a redundant motor structure. Then, it illustrates advanced electric drive systems, such as the magnetic-geared in-wheel drive and the integrated starter generator (ISG). Finally, three machine-based implementations of the power split devices are expounded, built up around the dual-rotor PM machine, the dual-stator PM brushless machine and the magnetic-geared dual-rotor machine. As a conclusion, the development trends in the field of electric machines and machine-based systems for EVs are summarized.

show abstract

“…This relationship is very similar to Equation (2), which means that the MGDRM might be a potential replacement for the THS [70,71]. Figure 24.…”

Section: Dual-rotor Magnetic-geared Brushless Ecvtsupporting

confidence: 60%

Advanced Electrical Machines and Machine-Based Systems for Electric and Hybrid Vehicles

et al. 2015

View full text Add to dashboard Cite

show abstract

“…Substituting Equation (2) for Equation (1), the new voltage expression of CSPM motor is in Equation (4). The resistance matrix (R), mutual inductance matrix (L m ), and the derivative of L m (L m ') are shown in Equation (5).…”

Section: State Equation In Three-phase Stationary Coordinate Systemmentioning

confidence: 99%

“…The HEVs use a dual-rotor motor as a power distribution device, together with an advanced control system, to make the two power units, i.e., the internal combustion engine (ICE) and battery cooperate to achieve low energy consumption and low pollution [1]. Nowadays, power distribution devices mainly contain electric variable transmission (EVT), a compound-structure permanent-magnet motor (CSPM motor), a switched reluctance motor (SRM), magnetic-geared EVT, and the radial magnetic-field modulated brushless double-rotor machine (RMFM-BDRM), whose performances directly affect the quality of HEVs [2][3][4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Analysis and Design of a Compound-Structure Permanent-Magnet Motor for Hybrid Electric Vehicles

Sun

Tian³

et al. 2018

Energies

View full text Add to dashboard Cite

Abstract:On the basis of the excellent driving force demand of hybrid electric vehicles (HEVs), this paper studies the torque property of the compound-structure permanent-magnet motor (CSPM motor) used for HEVs, which is influenced by magnetic field oversaturation and variable nonlinear parameters. Firstly, the system configuration of HEVs based on CSPM motor and its working mode are introduced. Next, the state equation of CSPM motor in three-phase stationary coordinate system is proposed in order to investigate its torque performance; then, the factors affecting the output torque are gained. Finite element method (FEM)-based electromagnetic parameters analysis and design is carried out, to raise the output torque and reduce the torque ripple of CSPM motor. Besides, optimized design parameters are used to establish the FEM model, and the simulation results of electromagnetic performances for the CSPM motor before and after optimization are given to verify the rationality of optimization.

show abstract

“…Figure 2 shows the collinear speed map [24], which is utilized to analyze the change relationship of rotational speeds in Equation (1). As shown in Figure 1c, the positive direction of the torque and the rotational speed is specified in the counterclockwise direction.…”

Section: Introductionmentioning

confidence: 99%

A Novel Electric Vehicle Powertrain System Supporting Multi-Path Power Flows: Its Architecture, Parameter Determination and System Simulation

et al. 2017

View full text Add to dashboard Cite

Abstract:In this paper, a novel electric vehicle powertrain system is proposed. In the system, a coaxial magnetic gear (CMG), an electromagnetic clutch, a lock, and two electric machines (EMs) are adopted to achieve the power-split by controlling the states of the clutch and the lock, which enables electric vehicles (EVs) to work in four operation modes. The configuration, power flow paths and operation modes are depicted in detail. A dynamic model is established to help determine the parameters and build simulation models. The simple control strategy is adopted to achieve flexible power-splits. How to determine the relevant parameters to meet the drive requirements in the powertrain system is also elaborated. A dynamic simulation using MATLAB/Simulink is performed to take into account the control strategy and New European Drive Cycle. Finally, the simulation results demonstrate, in theory, the rationality of the determined parameters and the feasibility of the operation modes as well as the control strategy.

show abstract

Characteristic Analysis and Verification of the Magnetic-Field-Modulated Brushless Double-Rotor Machine

Cited by 111 publications

References 37 publications

Advanced Electrical Machines and Machine-Based Systems for Electric and Hybrid Vehicles

Advanced Electrical Machines and Machine-Based Systems for Electric and Hybrid Vehicles

Analysis and Design of a Compound-Structure Permanent-Magnet Motor for Hybrid Electric Vehicles

A Novel Electric Vehicle Powertrain System Supporting Multi-Path Power Flows: Its Architecture, Parameter Determination and System Simulation

Contact Info

Product

Resources

About