The paper presents characteristics of a permanent magnet synchronous machine designed for micro-hybrid electric vehicle operation. Appropriate design of interior permanent magnet machine with 36 stator slots and 8 stator poles for operation in motor and generator operation mode was investigated. Finite element analysis is employed in order to determine the machine performance. Streszczenie. W a...

A simple step and search control strategy for extracting maximum output power from grid connected Variable Speed Wind Energy Conversion System (VSWECS) is implemented in this work. This system consists of a variable speed wind turbine coupled to a Permanent Magnet Synchronous Generator (PMSG) through a gear box, a DC-DC boost converter and a hysteresis current controlled Voltage Source Converte...

Abstract The efficiency, power density, and torque of axial flux generators are higher than those radial generators. In this paper, a new switching generator with coreless stator is designed for micro wind turbine applications. Generator parts based on nominal values, their dimensions determined. Cogging an undesired ripple intrinsic in the design permanent magnet generator, which should be min...

A novel hybrid state space modeling approach for a dual armature generator is presented. The model uses finite element analysis to obtain the rotor angle-dependent parameters, namely flux linkage, stator inductances and cogging torque, which are then incorporated into dynamic equations of using Fourier representations physical parameters as function angle. proposed addresses many limitations cl...

A novel machine family – dual-rotor, Radial-Flux, Permanent-Magnet (RFPM) machines -has demonstrated that it can substantially improve machine torque density and efficiency. The objective of this paper is to provide a performance comparison between two major alternatives of this technology: Surface-mounted dual-rotor RFPM machines and Axial-Flux Permanent-Magnet (AFPM) machines. The comparison ...

Introduction: The NASA Glenn Research Center (GRC) is conducting in-house research on linear alternators (LA’s) to assist in developing free-piston Stirling convertors for radioisotope space power systems. This abstract intends to summarize the existing and potential types of LA’s that may be used with Stirling power convertors. Many of the existing LA types have been tested at NASA GRC and wor...

In this paper, a novel mechanical flux-weakening design of spoke-type permanent magnet generator for stand-alone power supply is proposed. By controlling the position adjustable modulator ring mechanically, total induced voltage, i.e., amplitude back EMF vector sum can be effectively adjusted accordingly by modulation effect. Consequently, variable-speed constant-amplitude voltage control (VSCA...