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Article

Enhanced Quadratic V/f-Based Induction Motor Control of Solar Water Pumping System

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Department of Energy Resources Engineering, Egypt-Japan University of Science and Technology, Alexandria 21934, Egypt
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Department of Electrical Engineering, Aswan University, Aswan 81542, Egypt
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Department of Electrical Engineering, Alexandria University, Alexandria 21934, Egypt
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CEMSE Division, King Abdullah University of Science and Technology, Thuwal 23955, Saudi Arabia
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Department of Mechatronics and Robotics Engineering, Egypt-Japan University of Science and Technology, Alexandria 21934, Egypt
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Department of Electrical Engineering, Assiut University, Assiut 71516, Egypt
*
Author to whom correspondence should be addressed.
Energies 2021, 14(1), 104; https://doi.org/10.3390/en14010104
Received: 27 November 2020 / Revised: 16 December 2020 / Accepted: 24 December 2020 / Published: 28 December 2020
(This article belongs to the Section Electrical Power and Energy System)
In rural and remote areas, solar photovoltaic energy (PV) water pumping systems (SPWPSs) are being favored over diesel-powered water pumping due to environmental and economic considerations. PV is a clean source of electric energy offering low operational and maintenance cost. However, the direct-coupled SPWPS requires inventive solutions to improve the system’s efficiency under solar power variations while producing the required amount of pumped water concurrently. This paper introduces a new quadratic V/f (Q V/f) control method to drive an induction motor powered directly from a solar PV source using a two-stage power converter without storage batteries. Conventional controllers usually employ linear V/f control, where the reference motor speed is derived from the PV input power and the dc-link voltage error using a simple proportional–integral (PI) controller. The proposed Q V/f-based system is compared with the conventional linear V/f control using a simulation case study under different operating conditions. The proposed controller expectedly enhances the system output power and efficiency, particularly under low levels of solar irradiance. Some alternative controllers rather than the simple PI controller are also investigated in an attempt to improve the system dynamics as well as the water flow output. An experimental prototype system is used to validate the proposed Q V/f under diverse operating conditions. View Full-Text
Keywords: solar PV water pumping systems; quadratic V/f; induction motor; sliding mode controller; fuzzy logic controller solar PV water pumping systems; quadratic V/f; induction motor; sliding mode controller; fuzzy logic controller
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MDPI and ACS Style

Yussif, N.; Sabry, O.H.; Abdel-Khalik, A.S.; Ahmed, S.; Mohamed, A.M. Enhanced Quadratic V/f-Based Induction Motor Control of Solar Water Pumping System. Energies 2021, 14, 104. https://doi.org/10.3390/en14010104

AMA Style

Yussif N, Sabry OH, Abdel-Khalik AS, Ahmed S, Mohamed AM. Enhanced Quadratic V/f-Based Induction Motor Control of Solar Water Pumping System. Energies. 2021; 14(1):104. https://doi.org/10.3390/en14010104

Chicago/Turabian Style

Yussif, Neama, Omar H. Sabry, Ayman S. Abdel-Khalik, Shehab Ahmed, and Abdelfatah M. Mohamed 2021. "Enhanced Quadratic V/f-Based Induction Motor Control of Solar Water Pumping System" Energies 14, no. 1: 104. https://doi.org/10.3390/en14010104

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