Self-Controlled PMSM Drive Employed in Light Electric Vehicle-Dynamic Strategy and Performance Optimization

Abstract

This proposed work demonstrates the illustration of dynamic performance intensification of a Permanent Magnet Synchronous Motor (PMSM) employed by a PWM controlled inverter which synchronizes with the rotor movement intimation. PMSM are widely hired in electric vehicles since it possesses better dynamic response, improved torque-speed property, and reduced noise, energy-efficient and power factor in comparison with traditional motors. In the present work, it is observed that by few modifications of the position control strategy as good as sinusoidal stator currents response generates less torque ripples. The mathematical model for PMSM is derived from park's transformation. Further, a maiden attempt is taken to introduce the performance indicator 'sensor angle' to estimate the rotor position in this strategy. From the established model, the various dynamic behavior of the drive system is determined analytically without and under various load disturbances. Additionally, a particle swarm optimization (PSO) technique is adopted to optimize the performance of the proposed dynamic strategy. An efficient speed control strategy by the variation of DC bus voltage is achieved which is equivalent to the armature voltage control of the conventional dc machine. Further, efficient and simple control circuitry of the voltage source inverter (VSI) is obtained in this strategy. To verify the efficacy of the proposed algorithm, necessary tests are carried out in a real-time setup. Therefore, an improved control strategy obtained from the simulation and an experimental approach meets the dynamic behavior employed in light weight electric vehicles.

Sensor angle‐based control strategy and dynamic analysis of a sinusoidal pulse width modulation‐operated permanent magnet synchronous machine drive for electric propulsion unit

“…Due to the presence of buck converter circuitry at the input of this inverter voltage, ripples are getting reduced, which in turn improve the nature of the voltage waveform. 27 The phase voltages of the inverter captured in Figure 18C illustrate the same stepped-type waveform as observed in the numerical results reported earlier. Moreover, the introduction of a buck-type VSI conveys the smoother voltage waveform containing lesser ripples.…”

“…Like the simulated response, a stepped‐wave three‐level inverter output is observed in Figure 18B. Due to the presence of buck converter circuitry at the input of this inverter voltage, ripples are getting reduced, which in turn improve the nature of the voltage waveform 27 . The phase voltages of the inverter captured in Figure 18C illustrate the same stepped‐type waveform as observed in the numerical results reported earlier.…”

“…An improved inverter‐fed strategy of a fuzzy proportional plus integral controlled PMSM drive for the light electric vehicle was reported by Sain et al 24 In this method, an updated particle swarm optimization‐based optimization technique was introduced to optimize the performance of a fuzzy logic controller in a sensorless PMSM drive. In Reference 27, dynamic strategy and performance optimization of a PWM‐operated self‐controlled PMSM drive was discussed. To estimate the rotor position information, an analytical procedure was adopted in this strategy, and finally, a speed control strategy was achieved.…”

Control of PMSM Drive Using Lookup Table Based Compensated Duty Ratio Optimized Direct Torque Control (DTC)

“…In [3], a new PMSM model was presented for low-speed electric drive applications. Whereas an artificial intelligence approach was employed to optimize PMSM dynamics in [4]. In [5], the effect of one-step delay compensation on the voltage for predicting the next step current is addressed.…”

Robust Sliding Mode Control of the Permanent Magnet Synchronous Motor with an Improved Power Reaching Law

“…The exciting field of the permanent magnet synchronous motor (PMSM) is provided by permanent magnets, resulting in a simple structure, high power density, high efficiency, and low maintenance cost; thus, the PMSM has been widely adopted as the drive motor of electric vehicles and hybrid electric vehicles [1][2][3]. However, the control of PMSM has some challenges, such as coupled variables, multiple control objectives, and uncertain disturbances.…”