This paper investigates different rotor topologies based on the spoke design as an alternative to the internal permanent magnet design currently used in the Toyota Prius 2004 design. Reference is made to the 2010 model ...
In this paper, different analysis and design techniques are used to analyze the drive motor in the 2004 Prius hybrid vehicle and to examine alternative spoke-type magnet rotor (buried magnets with magnetization which is ...
This paper describes an investigation into the reasons for the reduction in starting torque of a very long skewed-rotor induction machine. It was previously assumed that inter-bar currents were the reason for the torque ...
This paper describes a model for a six-phase induction motor driven by an inverter operating in a six-pulse (square wave) mode. The model is implemented, and performance, in terms of torque, current, and efficiency, is ...
In this paper an investigation is carried out to see if it is possible to assess the condition of a rotor by clamping it in a DC-current-injection rig and measuring voltages in bars at regular intervals down the axial ...
This paper studies different rotor topologies for the design of a 2 MW doubly-fed reluctance generator for a wind turbine application. There have been several papers that put forward different options for this type of ...
There has been much literature on unbalanced magnetic pull in various types of electrical machine. This can lead to bearing wear and additional vibrations in the machine. In this paper a wound rotor induction is studied. ...
This paper examines the appropriateness of the Fast Fourier Transform for decomposition and reconstruction of wave records taken at fixed locations and transposed to a different temporal and spatial point. In marine renewable ...
This paper discusses the possibility of using woundrotor synchronous motors in automotive drive applications. Currently the brushless rare-earth magnet machine is the main choice of drive motor because it has high ...
This paper looks briefly at aspects of iron loss assessment in switched reluctance machines (SRMs) and addresses issues that can arise when attempting to measure the flux linkage/current loops and the magnetizing curves ...
This paper investigates the iron losses that occur in a brushless doubly-fed reluctance machine. This is a novel machine that is still being researched. It is found that the iron losses are quite high when using an ...
We describe the basic characteristics of a consequent-pole bearingless motor. The consequent-pole-type rotor has buried permanent magnets (PMs) polarized in the same radial direction. We carried out an analysis to find the ...
There is an increasing interest in electric transportation. Most large manufacturers now produce hybrid versions of their popular models and in some countries electric cycles and scooter are now popular. Motor sport is ...
This paper describes a method for calculating the end-ring impedance of a squirrel-cage induction motor using the method of images. The method is verified by using finite-element analysis. A second method is also discussed, ...
In this paper, the radial forces in an induction motor are calculated using finite element analysis. These radial forces (or unbalanced magnetic pull-UMP) are generated when the rotor is eccentric. The work illustrates ...
This paper addresses the variation of starting torque in a 3-phase induction motor. It presents some example results from an experimental investigation then develops a hybrid analytical/finite element method for rapid ...
This paper presents a technique for cogging torque reduction in an axial-flux permanent-magnet (PM) generator suitable for use in a small wind turbine. These machines can be compact and have high power density; they are ...
This paper reports on methods for the analysis of electrical machines by combined electromagnetic and thermal models using commercial software which can be an aid to the design of these machines. Examples using a brushless ...
Direct power control (DPC) has been proposed and well developed for its distinguished advantages such as simplicity, robustness, excellent steady-state and dynamic response. This paper presents a comparative study of DPC ...
This paper describes an investigation into different motor designs for an application dictated by the performance of an existing hybrid electric vehicle drive (an internal permanent magnet motor). An induction motor and ...