A New Modular Asymmetrical Half-Bridge Switched Reluctance Motor Integrated Drive for Electric Vehicle Application

A modular asymmetrical half-bridge drive topology for a 12/8 switched reluctance motor (SRM) is introduced in this paper. The drive operates both in driving and charging modes and does not require any circuit reconfiguration to switch between the two modes. In addition to high degree of fault tolerance, voltage equalization of the battery packs can be achieved with ease in both idle and charging modes. The operation of the proposed converter topology and its performance is investigated with simulations. A power factor correction strategy is applied to shape the grid side current. The simulation results show the driving and charging performance and state of charge equalization capability of the proposed integrated SRM drive

An Integrated SRM Drive with Constant Current Constant Voltage Charging Capability for Electric Vehicle Application

Multiport converter based integrated AC charging for electric vehicle (EV) batteries is investigated in this paper. An EV with a Switched Reluctance (SR) drive is considered and the proposed control scheme achieves constant current and constant voltage (CCCV) charging of the on-board battery with the charging integrated SRM Drive. In addition, unity power factor on the AC side is achieved without using any additional circuitry. Operation and control design is presented in detail and simulations are shown to verify the control strategy and assess the performance of proposed scheme

Flux Switching Machines: A Review on Design and Applications

This paper reviews recent trends in the application of flux switching machines (FSMs) in industry, the variation in FSM designs and control strategies to achieve enhanced performance. FSMs offer advantages such as high torque density, high speed capability, ease of control and low vibration and acoustic noise compared with competing technologies. These features enable FSMs to be applied in transportation, renewable energy and aerospace applications. However, the high cogging torque is found to be a negating feature of the FSMs that can be exacerbated by manufacturing tolerance issues. Design techniques developed to achieve lower cogging torque, in addition to lower back-EMF harmonics and higher torque density is reviewed in this paper. In addition, the design for fault tolerance, field weakening and high speed operation and the use of special magnetic material for FSMs have been reviewed. Control strategies developed for torque ripple minimization, fault tolerant operation and strategies to estimate and control FSM field flux has also been reviewed

PWM DAC based Input System for Synchrophasor Algorithm Testing

Synchrophasor technology is an emerging wide-area monitoring system (WAMS) technology that provides near-real-time stability assessment capability for power networks under both static state and dynamic conditions. The accuracy and latency of the measured synchrophasor directly depend on the synchrophasor assessment algorithm and thus, many research studies are conducted by developing a plethora of synchrophasor algorithms based on several mathematical models. However, majority of these algorithms are tested on simulation platforms due to the inherent complexities in developing a hardware based comprehensive test set-up for synchrophasor performance evaluation, which limits the adoption of such algorithms in industrial applications. This study presents a pulse-width modulation (PWM) based laboratory scale input system for generating all the synchrophasor test cases defined in the IEEE std. $\mathrm {C}37.118.1/1\mathrm {a}.$ Performance of the proposed system is validated by rigorous testing across several test cases and comparison of results in both simulation and hardware platforms