A high-performance control scheme for photovoltaic pumping system under sudden irradiance and load changes

•An effective control scheme for battery-less PV pumping system is presented.•An improved P&O MPPT is proposed to solve sudden changing irradiation problem.•The proposed control scheme is able to protect the IM under sudden load drops.•The net DC-link voltage is accurately controlled by a fuzzy...

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Vydáno v:Solar energy Ročník 159; s. 353 - 368
Hlavní autoři: Talbi, Billel, Krim, Fateh, Rekioua, Toufik, Mekhilef, Saad, Laib, Abdelbaset, Belaout, Abdesslam
Médium: Journal Article
Jazyk:angličtina
Vydáno: New York Elsevier Ltd 01.01.2018
Pergamon Press Inc
Témata:
Algorithms
Centrifugal pumps
Chemical energy
Computer simulation
Control systems
Converters
Electric potential
Electromagnetic induction
Energy consumption
Energy storage
Fuzzy control
Fuzzy logic
Fuzzy logic control
Irradiance
Mathematical models
Maximum Power Point Tracking (MPPT)
Model predictive control
Optimal control
Performance assessment
Photovoltaic cells
Photovoltaic pumping system
Photovoltaics
Predictive control
Pumping
Solar cells
Solar energy
Torque
Tracking
Voltage
Fuzzy logic control
Model predictive control
Maximum Power Point Tracking (MPPT)
Photovoltaic pumping system
ISSN:0038-092X, 1471-1257
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Shrnutí:•An effective control scheme for battery-less PV pumping system is presented.•An improved P&O MPPT is proposed to solve sudden changing irradiation problem.•The proposed control scheme is able to protect the IM under sudden load drops.•The net DC-link voltage is accurately controlled by a fuzzy logic controller.•Predictive torque and flux control is used to control the induction motor drive. A low-cost photovoltaic (PV) pumping system based on three phase induction motor (IM) without the use of chemical energy storage elements is presented in this paper. The PV generator-side boost converter performs the maximum power point tracking (MPPT), while the IM−side two-level inverter regulates the net DC-link voltage and the developed electromagnetic torque by IM, which is coupled with a centrifugal pump. An improved variable step size perturb and observe (P&O) algorithm is proposed to reduce the steady-state PV power fluctuation, to accelerate the tracking operation under sudden irradiance changes, and to protect IM under load drops. The proposed algorithm is based on a current control approach of the boost converter with a model predictive current controller to select the optimal control action. Moreover, predictive torque and flux control (PTC) is used to control IM drive, due to its advantages such as faster torque response, lower torque ripple, and simplicity of implementation. Furthermore, a Takagi-Sugeno (T-S) type fuzzy logic controller (FLC) is developed in order to regulate the DC-link voltage, by producing the torque reference for PTC algorithm. In order to examine and assess the performance of the proposed control scheme for PV pumping system, a complete simulation model is developed using MATLAB/SimulinkTM environment and confirmed through real-time hardware in the loop (HIL) system. The obtained results indicate the excellent performance of the proposed control scheme, which is much better than the conventional scheme based on conventional techniques (P&O algorithm and direct torque control (DTC)).
Bibliografie:ObjectType-Article-1
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content type line 14
ISSN:0038-092X
1471-1257
DOI:10.1016/j.solener.2017.11.009