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Publications (66)
Rotary inverted pendulum (RotIP) innates unstable and underactuated behaviour that is helpful in the realisation of many real-world problems. It is very challenging to identify and control the dynamics of RotIP system due to its nonlinear, complex, underactuated and unpredictable nature. The primary objective of this work is to improve the swing-up...
Electric Vehicles (EVs) are anticipated to dominate passenger car transportation, playing a pivotal role in advancing sustainable mobility. However, with the increasing enthusiasm for EVs, impediments endure within the realm of power transmission. This is especially evident in addressing challenges related to minimizing torque ripple and implementi...
The commutation points of the Brushless DC motor in the sensored mode of operation are synchronized with discrete rotor position detection signals from three Hall effect sensors. Therefore, any delay in the hall sensor signals results in delayed commutation, which disturbs synchronization with the motor Back Electromotive Force (BEMF) profile. The...
This paper investigates hall sensor signal unbalancing faults in sensored Brushless Direct Current (BLDC) motor drives and presents a fault effect minimization scheme for implementation in motor controller without any modification in system architecture, or core commutation method. In the proposed scheme detection, classification, and estimation of...
Extensive research in the traction component of unmanned aerial vehicles (UAV) reveals that selection of electric motor is paramount to enhance its endurance flight time with high efficiency. This can be achieved by employing a motor with light weight, low losses, high efficiency and efficient speed—torque characteristics. For addressing the above-...
Ball balancer system is an electromechanical nonlinear system which has innate unstable and underactuated behaviour that can be helpful in realisation of both position tracking and balancing control problem in robotic systems analysis. This article presents the modelling, design, control and affirmation of 2-DOF ball balancer system. Different comp...
This work presents a continuous Linear Quadratic Gaussian (LQG) controller based on the optimal control strategy for swinging-up the rotary inverted pendulum and maintaining an equilibrium in the vertical upward position, both using simulation and experimentation. The trajectories and optimal control with sufficient weights are approximated using n...
Brushless DC (BLDC) motors operate in both sensored mode and sensorless mode options depending upon the application requirements. Hall effect sensors are the most common prevalent solutions used in sensored mode of operation. This type of arrangement is widely used in e-vehicle applications, particularly in e-rickshaw type of applications where sub...
The high torque and power density of permanent magnet synchronous motor (PMSM) make it potentially eligible for playing the crucial role of transmitting energy from battery pack to wheel system of electric vehicle (EV) in electric powertrain (PT). This paper presents a sensorless field controlled EVPT test bench emulating the EV propulsion system....
This paper investigates minimization of torque ripples in permanent magnet synchronous motor (PMSM) drive and presents the design and implementation of a proportional-plus-integral resonant (PI-RES) controller-based model predictive control (MPC) of PMSM drive. In MPC, the machine model is used to predict the possible actions of control variables i...
Recently, the quality management of research articles (RA) has cherished an era of remarkable growth and conglomeration. It is because the qualitative approach has become an established and valued approach among varietal areas and contexts. The quality of RA is precisely based on the clarity of the illustration of the aims. Previously, the categori...
This paper presents the implementation of Indirect vector control (IVC) of Induction motor(IM) drive using different gain values of proportional gain, integral gain of PI controller and band values of hysteresis band(HB) controller. Dynamic performance for indirect vector control of 2.2 KW induction motor drive is analyzed using PI and HB controlle...
This paper aims to present a comparative study on the thermal performance of two different variants of heat sinks used for MOSFETs, one which is newly designed in order to achieve improved heat transfer. Both MOSFET heatsink designs are developed using computer-aided design suites and are analyzed using ANSYS. The MOSFET's differ in their heat sink...
Detection of the rotor position is an important prerequisite for controlling the speed and developed torque in permanent magnet synchronous motor (PMSM). Even though use of incremental encoder and resolver is one of the popular schemes for sensing the rotor position in a PMSM drive, it increases the size and weight of the drive and reduces its reli...
The intelligent optimization techniques have been introduced by carefully observing the behavior of various hunters like a whale, grey wolf, Aquila, and lizards for estimating global optimum solutions in fair time by forming appropriate mathematical models. However, hunting-based algorithms suffer from slow and pre-requisite convergence and get cau...
Abstract In this study, an Integrated Taguchi method‐assisted polynomial Metamodelling & Genetic Algorithm (ITM&GA)‐based optimisation technique is implemented for design optimisation of a surface inset permanent magnet synchronous motor (SIPMSM). The motor geometry is analysed by implementing the finite element method for application of the motor...
Lightweight electric motor topologies used in electric transport applications require high-power density structures. Selection of suitable core material with appropriate physical geometry is important at design stage to reduce the core losses and the weight of the motor. This paper presents a novel hybrid metaheuristic optimization technique termed...
Forecasting of load refers to prediction of power demanded by the targeted geographical area based on the trends and patterns of previous load demands. To forecast the load accurately, is one of the biggest challenges of all electrical utilities and load dispatch centres. In this paper, artificial neural network (ANN) and time series (TS) models ar...
An advanced predictive current controller (APCC) based on deadbeat (DB) control theory for permanent magnet synchronous motor (PMSM) drives is proposed in this paper, where the optimum voltage vector is computed offline by solving an optimization problem. The optimum voltage vector along with a zero-voltage vector (ZVV) is applied to the motor unde...
In PMSM identification of rotor position is very essential to control speed of the motor. Use of encoder and resolver is conventional method to detect speed and rotor position but it increases the price, weight and degrades the reliability of the system. Therefore, many algorithms have been established which is used for the estimation of rotor posi...
In this paper efficiency enhancement algorithms are developed and implemented on an indirect vector controlled three-phase Induction Motor (IM) drive, and its performance under different operating conditions is analysed. The controllable electrical losses in the IM are minimized through the optimal control of direct axis (d-axis) stator current, an...
Permanent magnet synchronous motor (PMSM) drives are used for high-performance applications like servo and robotics drives, electric vehicle, spinning and rolling mills, packaging industries due to their high-power density, high efficiency and better power factor. The high-performance applications of PMSM use vector control principle. The vector co...
Being the most widely used motor in all types of industrial and domestic applications, operation of the induction motor at optimal efficiency is paramount for conservation of energy. This paper presents simple and easily realizable techniques for implementation of a PI and Fuzzy Logic controller based efficiency optimization algorithm for a vector...
Automating repetitive tasks in the industries increases the productivity; reduces the probability of error and maintain product quality. Traditional methods of mixing fixed quantities of different types of liquids and filling them in bottles involve manual mixing of the constituent components based on measurements and bottling of the mixture as des...
A Programmable Logic Controller (PLC) based power factor correction method for a 3-phase Induction Motor (IM) through switching of shunt capacitors is proposed in this paper. A 3 phase IM has a low power factor (pf) at no load as it draws large magnetizing current and the active power delivered to the motor is low, which is utilized to overcome the...
The effect of parametric variations in three phase induction motor such as stator resistance, rotor resistance, leakage and mutual inductances on the induction motor performance variables such as input power, output power, stator current, starting current, magnetizing current, power factor, efficiency, developed torque and starting torque have been...
Model Reference Adaptive System (MRAS) based estimation of stator resistance in a vector controlled induction motor (IM) drive is presented in this paper. The developed algorithm utilizes voltages and currents in synchronously rotating reference frame for the estimation of stator resistance thus reducing computational complexities as compared to th...
In this paper, a scheme for closed loop speed control of DC motor in four quadrants using Programmable Logic Controller (PLC) is discussed. The armature voltage is varied using a Class E chopper circuit. The individual switches in the chopper circuit are switched using Pulse Width Modulation (PWM) control signals generated by PLC. Duty cycle of PWM...
This paper presents a novel method for the efficient operation of an Induction Motor (IM) Drive through selection of optimal V/f ratio. The appropriate selection of V/f ratio is used to achieve minimum losses and thereby optimizing the efficiency. The scheme proposed in this paper is implemented successfully using a laboratory 3 HP IM in real time...
Application of particle swarm optimisation (PSO) in efficiency optimisation of vector controlled surface mounted permanent magnet synchronous motor (PMSM) drive is presented in this study. Analytical expressions for the controllable electrical loss in PMSM are derived and optimised through control of direct axis (d-axis) stator current, according t...
A laboratory setup of distributed drives system comprising a three-phase induction motor (IM) drive and a permanent magnet synchronous motor (PMSM) drive is modeled, designed, and developed for the monitoring and control of the individual drives. The integrated operation of IM and PMSM drives system has been analyzed under different operating condi...
An engineer designing a high-performance drive system must have intimate knowledge about machine performance, the dynamic model and parameter variations. The choice of material and the design of motors are influenced by this knowledge. Prediction of system performance due to the effect of parametric variations of the system is the main reason to pe...
This paper presents an implementation of automation scheme for control of three phase Permanent Magnet Synchronous Motor (PMSM) drive. Performance evaluation and monitoring of drive is described using Supervisory Control and Data Acquisition (SCADA) and Programmable Logic Controller (PLC) system. The control, operation and monitoring of PMSM drive...
Performance evaluation of a three-phase AC servomotor drive having Supervisory Control and Data Acquisition (SCADA) system is presented in this paper. The Supervisory Control on drive is implemented using a Programmable Logic Controller (PLC) to monitor and control the drive performance. Mathematical modeling, simulation and experimental studies ha...
In this paper an efficiency optimization algorithm for vector controlled Induction Motor (IM) Drive has been developed and the performance of the IM Drive under different operating conditions has been analyzed. The controllable electrical loss in IM Drive is minimized by the optimal control of direct axis (d-axis) stator current, which controls the...
Continuous monitoring and control of motors and drives have become a need of process industries, which require operation of various drives in a pre-designated sequence. The programmable logic controllers (PLCs), an intelligent device, can realise automated operation. Distributed control system has partially autonomous local computational capability...
