Reluctance synchronous and field intensified-PM motors for variable-gear electric vehicle drives

Prins, Michiel H. A.; Vorster, Chris W.; Kamper, Maarten J.

doi:10.1109/ecce.2013.6646764

Cited by 13 publications

(4 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…They optimised the performance of the electric machines with modern optimisation algorithms. Prins et al [17] used the geometry size of the air barrier and permanent magnets as design variables to solve the problem with two optimisation objectives, namely permanent magnet volume and torque ripple. However, the weighted average method is utilised to solve the individual integrated cost function, without considering the trade-off relationship among the two optimisation objectives.…”

Section: Literature Reviewmentioning

confidence: 99%

Optimisation of reverse salient rotor for interior permanent magnet synchronous motor and experimental validation

Wei

et al. 2021

IET Electric Power Appl

View full text Add to dashboard Cite

The prosperous development of electric vehicles has promoted the application of interior permanent magnet synchronous motors (IPMSMs). The flux-intensifying IPMSM has attracted more attention due to its high power-density and better flux-weakening performance. However, the optimisation efficiency and motor performance require further study in the actual optimisation design. To this end, this study is to optimise the electromagnetic field structure of motor rotors with the back propagation neural networks (BPNN) and multi-objective optimisation methods. Concretely, dimensional parameters of an initial motor are extracted as optimisation variables. Then, the BPNN are utilised to stimulate the motor performance obtained with finite element methods (FEM). With the trained BPNN, FEM tools are replaced in the subsequent optimisation process, which alleviates the computational burden. Besides, to address the problem of multi-objective optimisation with inequality constraints, the sequential unconstrained minimisation technique is incorporated into the non-dominated sorting genetic algorithm to obtain the Pareto frontier. Finally, the optimal design point is selected from the Pareto frontier. The simulation and experiment have been implemented to verify the superiority of the optimised rotor structure. Generally, this study has laid the foundation of the following motor optimisation with the higher executability and lower computational burden. K E Y W O R D S electric machines, electric vehicles, multi-objective optimization, neural networks, reverse salient rotorThis is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

show abstract

Section: Literature Reviewmentioning

confidence: 99%

Optimisation of reverse salient rotor for interior permanent magnet synchronous motor and experimental validation

Wei

et al. 2021

IET Electric Power Appl

View full text Add to dashboard Cite

show abstract

“…Examples of these are presented in [3] and [6]. The second topology, (b), is created by implementing circles to generate the respective flux barriers with examples provided in [2], [7], [8]. The third topology, (c), implements second-order polynomials, as illustrated in [9].…”

Section: Introductionmentioning

confidence: 98%

“…4. As can be seen in the figure, the central support web commonly implemented ( [2], [7], [8], [14], [15]) in the barrier creation for rotor rigidity has been omitted. This omission is in order to increase the saliency ratio and hence the performance of the machine, as suggested by [9].…”

Section: Introductionmentioning

confidence: 99%

Asymmetric Flux Barrier and Skew Design Optimization of Reluctance Synchronous Machines

Howard

Kamper

Gerber

2015

IEEE Trans. on Ind. Applicat.

Self Cite

View full text Add to dashboard Cite

In this paper an investigation into an alternative topology for reluctance synchronous machine rotor flux barriers is presented. The investigated topology employs a high number of flux barrier variables with an alternative asymmetric rotor structure. The focus in the paper is on maximising average torque and minimising torque ripple, using finite element-based design optimisation, in order to study the possibility of achieving acceptably low torque ripple. A subsequent investigation into the effect of rotor skew on the proposed optimised design to reduce torque ripple even further is also conducted, as well as the manufacturing and testing of the proposed flux barrier prototype. I. INTRODUCTIONWith the increasing emphasis on efficiency and cost reduction, the interest in reluctance synchronous machines (RSMs) has grown during the past decade. This interest is driven by not only the robustness, efficiency and simplicity of RSMs, but also by the fact that the cost of rareearth magnets is increasing and their market stability is decreasing.The main focus of most RSM design optimisation, depending on application, is on maximising average torque (T A ), within the limits of an allowable volume, and minimising torque ripple (T R ). The latter is conventionally achieved by rotor skewing and stator cording in order to reduce the air-gap harmonics that produce a high T R . In this paper, the possibility of both maximising T A and minimising T R without implementing rotor skew techniques to achieve acceptable T R values is investigated. A further investigation into the effect of rotor skew on the proposed topology to reduce T R values even further is also presented.A large part of the design of RSMs is focused on the rotor creation, and more specifically the type of flux barrier topology and its creation procedure. With the latter in mind, two creation techniques are summarised by Vagati [1], the first of which implements generalised lumped-parameter modelling of the rotor magnetic circuit and the second, a numeric design optimisation of a rotor flux barrier structure.The second procedure is implemented in this research. This procedure is based on a predetermined basic barrier structure with a fixed number of variable parameters, such as barrier tip angle and barrier width. These parameters are numerically optimised by implementing a finite element method (FE) package that calculates each iteration's relevant machine performance parameters, for example torque and torque ripple. Examples of this design procedure can be found in [2]-[5]. The advantage of this approach is that the optimisation inherently takes complex phenomena, such as torque harmonics and cross saturation, into account.In RSM design, three basic rotor topologies have emerged with combinations and small variations between specific

show abstract

“…The above literature review shows that the selection of proper gear ratio can be useful in efficiently utilizing the power of the drive, and minimizing the energy consumption from the power source [16]. Through simulations of the traction drive using city drive cycle, the optimum gear ratios can be determined.…”

Section: Power Balance and Energy Conservationmentioning

confidence: 99%

Modeling, Simulation and Control of Hybrid Electric Vehicle Drive While Minimizing Energy Input Requirements Using Optimized Gear Ratios

Massey

View full text Add to dashboard Cite

Reluctance synchronous and field intensified-PM motors for variable-gear electric vehicle drives

Cited by 13 publications

References 10 publications

Optimisation of reverse salient rotor for interior permanent magnet synchronous motor and experimental validation

Optimisation of reverse salient rotor for interior permanent magnet synchronous motor and experimental validation

Asymmetric Flux Barrier and Skew Design Optimization of Reluctance Synchronous Machines

Modeling, Simulation and Control of Hybrid Electric Vehicle Drive While Minimizing Energy Input Requirements Using Optimized Gear Ratios

Contact Info

Product

Resources

About