0000000000349684

AUTHOR

H. K. Mudaliar

showing 3 related works from this author

Improving the speed estimation by load torque estimation in induction motor drives: an MRAS and NUIO approach

2021

This paper proposes the application of the NUIO inside a FOC induction motor drive for the simultaneous estimation of the load torque and the rotor speed. The idea is to estimate at first the speed with the current model in parallel with a reference model developed on the basis of the voltage model of the induction machine. Then, the estimated speed is given as input to a nonlinear unknown input observer (NUIO) to estimate the load torque. This estimation is then used to correct the previous estimation of the speed. Simulation and experimental results confirm the goodness of the method for an extended range of speed and different load torque, and they confirm the reduction of error in trans…

Steady state (electronics)Observer (quantum physics)Computer scienceAC electrical drivesNonlinear systemdisturbance rejectionControl theoryTorqueTransient (oscillation)ObserversReference modelMRASFPGAInduction MotorInduction motor2021 IEEE 12th Energy Conversion Congress & Exposition - Asia (ECCE-Asia)
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Development of a Fractional PI controller in an FPGA environment for a Robust High-Performance PMSM Electrical Drive

2021

This paper proposes the application of a Fractional Order PI (FOPI) in the speed loop of a high performance PMSM drive to obtain both speed tracking and load rejection performance with a 1-DOF Proportional Integral (PI) controller and 2-DOF Integral Proportional (IP) controller. Hardware validation was implemented in Field Programmable Gate Array on the LabVIEW environment, based on the National Instruments System-on-Module sbRIO-9651 with Xilinx Zynq-7020. Simulation and experimental results are presented to comparing the performance of a PI, IP and FOPI controllers in the speed loop of a Field Oriented Control (FOC) of a Permanent Magnet Synchronous Motor (PMSM).

Vector controlComputer scienceControl theoryLogic gateControl systemmedicinePID controllerControl systems Field Oriented Control (FOC) Field Programmable Gate Array (FPGA) Permanent Magnet Synchronous Motor (PMSM) Power Converter Proportional-Integrator (PI)medicine.symptomLoad rejectionSynchronous motorField-programmable gate array
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Dynamical Compensation of the Load Torque in a High-Performance Electrical Drive with an Induction Motor

2018

This paper describes a new method for dynamical estimation of load disturbance in induction motors by using Nonlinear Unknown Input Observers (NUIO). This estimation is then used to compensate dynamically the load torque in a Field Oriented Control (FOC) induction motor drive to increase its load-rejection capability. The method has been verified both in simulation and experimentally on a experimental rig.

Electrical driveVector controlDisturbance (geology)Computer science020208 electrical & electronic engineeringinduction motor driveDynamic compensation02 engineering and technology01 natural sciencesCompensation (engineering)Nonlinear systemInduction Motors Estimation Field Oriented ControlControl theory0103 physical sciences0202 electrical engineering electronic engineering information engineeringTorqueLoad torque010301 acousticsInduction motor
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