Design and Performance Analysis of a 3-Phase Induction Motor for Solar Photovoltaic Fed Pumping System

Electric power tconservation tis important tin tthe induction motor tfield tbecause ttwo-thirds of tthe tearths electricity tis being tconsumed tby tinduction motors. tAC motors tare said tto tconsume tmore tenergy tin the tindustry. The tmain problem twith tthese tinduction motors tare tthey consume very thigh tpower tconsumption. The tuse tof tvariable frequency tdrives (VFD’s) thas treduced this tcurrent. Variable Frequency tDrive tis ta common technique tused to vary tthe speed tof tAC timpulse motor by changing their input frequency. These tdrives tuse large motors tto start tsmoothly and constantly tadjust tthe speed. With tthe use tof tVFD’s, energy cost tsavings tare particularly important tin tpump applications where tthe load torque and tpower tvary twith respect tto tthe induction motor speed. tWith tthat tsystem tit helps tto treduce the operating cost tof tthe twhole tsystem, which tprovides operational benefits tand timproves tthe system. tLife. tThis paper contains texperimental tstudies tof induction tmotors with VFD tand tVFD tfor tpumps. tWith tthat study's analysis, this paper treflects ta treview ton tthe stimulus and performance analysis tof tthe tinduction tmotor twith tand without tVFD.

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Linear and nonlinear controllers of a solar photovoltaic water pumping system

Bulletin of Electrical Engineering and Informatics ◽

10.11591/eei.v9i5.1778 ◽

2020 ◽

Vol 9 (5) ◽

pp. 1861-1872

Author(s):

M. Madark ◽

A. Ba-razzouk ◽

M. El Malah

Keyword(s):

Mathematical Model ◽

Induction Motor ◽

Centrifugal Pump ◽

Solar Photovoltaic ◽

Rotor Speed ◽

Control Laws ◽

Pumping System ◽

Water Pumping ◽

Nonlinear Controllers ◽

Linear And Nonlinear

This paper provided a comparative study between linear and nonlinear controllers of a solar photovoltaic (PV) water pumping system using an induction motor and a centrifugal pump. For linear controller, classical Perturb and Observe was selected to ensure the operation of the PV system at the maximum power point (MPP) and is combined with Indirect Rotor Field Oriented Control (IRFOC) based on a conventional proportional integral speed regulator chosen to control and to optimize the rotor speed. In second and third controllers, Backstepping and first order sliding mode controls were proposed for controlling the whole system. To regulate and optimize rotor speed in the nonlinear controller, all considered control techniques were combined with IRFOC in order to establish easy control laws. In addition, MPP was tracked by acting on the DC-DC converter and using its mathematical model for developing control laws. Maximum delivered power was used as reference signal for optimizing actual rotor speed. The controlled system is operated without mechanical sensors. Estimators of rotor speed and load torque were proposed based on the mathematical model of induction motor and centrifugal pump and using only available output measurements.. Simulation results were investigated and the effectiveness of the nonlinear proposed strategies.

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