Search Results - "Chalmers, B.J."

Salient-rotor PM synchronous motors for an extended flux-weakening operation range by Bianchi, N., Bolognani, S., Chalmers, B.J.

“…This paper proposes some novel designs of permanent-magnet synchronous motors for extending their flux-weakening capabilities. According to such a proposal,…”
Get full text

Influence of machine symmetry on reduction of cogging torque in permanent-magnet brushless motors by Breton, C., Bartolome, J., Benito, J.A., Tassinario, G., Flotats, I., Lu, C.W., Chalmers, B.J.

“…We study two methods to reduce cogging torque, both based on the analysis of the rotational symmetry in a brushless permanent-magnet motor. The first one seeks…”
Get full text

Axially laminated reluctance motor: analytical and finite-element methods for magnetic analysis by Bianchi, N., Chalmers, B.J.

“…This paper describes two methods - one numerical, the other analytical for analyzing an axially laminated reluctance (ALAREL) motor. The numerical method,…”
Get full text

An axial-flux permanent-magnet generator for a gearless wind energy system by Chalmers, B.J., Spooner, E.

“…The paper discuses the development of an axial-flux permanent-magnet generator for a gearless wind energy system which aims to demonstrate the feasibility of…”
Get full text

Performance of a line-start single-phase permanent-magnet synchronous motor by Chalmers, B.J, Baines, G.D, Williamson, A.C

“…There is now widespread experience of three-phase synchronous motors using high-field permanent magnets for rotor excitation and many high-performance designs…”
Get full text

Design and field-weakening performance of a synchronous reluctance motor with axially laminated rotor by Chalmers, B.J., Musaba, L.

“…Axially laminated reluctance motors can be designed to have high saliency and so offer very good performance in terms of torque capacity, power factor and…”
Get full text

Variable-frequency synchronous motor drives for electric vehicles by Chalmers, B.J., Musaba, L., Gosden, D.F.

“…The performance capability envelope of a variable-frequency, permanent-magnet synchronous motor drive with field weakening is dependent upon the product of…”
Get full text

Novel approach to current profiling for AC permanent magnet motors by Lu, C.W., Chalmers, B.J., Renfrew, A.C., Huang, S.

“…Harmonic torque control using current profiling has been implemented for constant mean torque production and cogging torque cancellation in brushless permanent…”
Get full text

Synchronous machines with inset surface NdFeB magnets by Chalmers, B.J., Akmeşe, R.

“…The paper describes an alternative form of rotor arrangement for synchronous motors. Design parameters and measured performance are presented for an…”
Get full text

Developments in electrical machines using permanent magnets by Chalmers, B.J.

“…The availability of high-field permanent-magnet materials has created opportunities for the development of electrical machines with advantageous properties…”
Get full text

Large superconducting DC drives with separate torque reaction windings by Spooner, E., Chalmers, B.J.

“…A slotless-armature DC motor with multiplex winding can be designed for higher power rating compared to one with a conventional slotted armature. Conventional…”
Get full text

New approach to longitudinal magnetic field in drum type machine by Gu, C.L., Chalmers, B.J.

“…Without 3D analysis, the longitudinal distribution of the magnetic field in a drum-type electric machine can be determined two-dimensionally, provided that…”
Get full text

Design considerations for a PM synchronous motor with rotor saliency for high speed drives by Bianchi, N., Bolognani, S., Chalmers, B.J.

“…Some new design proposals of permanent magnet synchronous motors for extending their flux-weakening capabilities propose a saliency ratio I/sub d//I/sub q/…”
Get full text

Design and field-weakening performance of a synchronous reluctance motor with axially-laminated rotor by Chalmers, B.J., Musaba, L.

“…Axially-laminated reluctance motors can be designed to have high saliency and so offer very good performance in terms of torque capacity, power factor and…”
Get full text

Large A.C. Machines by Chalmers, B.J.

Get full text

Problems in the Design and Development of 750 MW Turbogenerators by Chalmers, B.J.

Get full text

Modern Power Station Practice by Chalmers, B.J.

Get full text

Variable-frequency synchronous motor drives for electric vehicles by Chalmers, B.J., Musaba, L., Gosden, D.F.

“…The performance capability envelope of a variable-frequency, permanent-magnet synchronous motor drive with field weakening is dependent upon the product of…”
Get full text

Performance characteristics of synchronous motor drives with surface magnets and field weakening by Chalmers, B.J., Musaba, L., Gosden, D.F.

“…Permanent-magnet synchronous motors offer high efficiency under normal operating conditions but when field-weakening is used to obtain a wide constant-power…”
Get full text

An axial-flux permanent-magnet generator for a gearless wind energy system by Chalmers, B.J., Wu, W., Spooner, E.

“…The paper discusses the development of an axial-flux permanent-magnet generator for a gearless wind energy system which aims to demonstrate the feasibility of…”
Get full text