Modelling and simulation of a pumping system fed by photovoltaic generator within the Matlab/Simulink programming environment (original) (raw)

Modeling and performance of the photovoltaic pumping system

2020

The photovoltaic (PV) pumping system is a widely used in Mauritania to ensure the water supply in rural area for populations needs. This system is composed by three main parts: The PV Generator (PVG), impedance matching (DC/DC Power Convert), and the hydraulic part (coupling of a PMDC motor and a centrifugal pump). Two mathematical motor-pump models for PV application, were proposed in this article to contribute in the studies of PV pumping sizing. These models link directly the operating water current to the voltage and electrical power to the flow rate of the pump versus total head. In this article we study the simulation in Matlab/ Simulink environment the characteristics of a PV pumping system (submersible pump case); The three parts quoted for an overview of the performance of the system, taking into account the climate parameters (solar irradiance, and ambient temperature), and the effect of the total manometric head (HMT) on the pumped flow rate. The models were based principally, on the analysis of the experimentation results for one centrifugal pump, coupled to converter motor. The current, the voltage, the electrical power, the flow rate and the head were the monitored dates. Current-voltage and electrical power-flow have modeled characteristics of the modeled motor-pump. The improved models yielded satisfactory results. In ordre to validate the simulation, we use the meteorological data of Rosso city, which is a region of southern Mauritania.

Control of a photovoltaic pumping system

— The encouragement shown in the development and proliferation of photovoltaic (PV) systems has allowed designers of power generation chains to invest in the field of renewable energies (RE). Systems used for converting solar energy into electricity are based on photovoltaic cells. Indeed, the association of modules consisting of series and parallel grouped cells forms a photovoltaic generator (GPV). However, the operation of the GPV depends essentially on the temperature (T) and the illumination (E), which have to lead to optimal operation, ie to extract the maximum produced power and thus to improve the installation performances whatever the climatic conditions, a maximum power point tracker (MPPT) control would be necessary. Then, due to the remarkable performances, the GPV have became the fundamental structure of pumping systems installed in isolated places. In this work, the performances of a water pumping system based on an asynchronous motor and a centrifugal pump, are analyzed under different climatic conditions.

Modeling the Performance of the Photovoltaic (PV) Water Pumping Systems (Dept. E )

2020

The research suggests a mathematical model which represents the performance of photovoltaic water pumping system. The suggested system is considered one of the best used systems for producing clean electric power that is necessary for operating water pumps. The proposed system has been extrapolated by using main mathematical equations which expressing the performance of pumping system's components which are represented the photovoltaic cells and the group of the water motor-pump. A Mat Lab/Simulink used to construct a same numerical model. The extracted results are the same from both model and these results approved their validity. The photovoltaic water pumping system includes permanent magnet DC motor (PMDM) that is fed directly by the photovoltaic cells. And the water pump used in this purposed system is (centrifugal) type. The mathematical models can be used generally for any place which their solar characteristic is known to determine the amount of water that can be pumped ...

Modelling a permanent magnet DC motor/centrifugal pump assembly in a photovoltaic energy system

Solar Energy, 1997

Direct current (DC) motors and centrifugal pumps operate at variable speed in a photovoltaic pumping system. However, the characteristics of motors and pumps are usually only given for a single voltage and speed. To analyse the diurnal operation of a pumping system, where the solar radiation varies causing variation in the photovoltaic power, the input/output relationship of the motor-pump assembly must be determined.

Detailed analysis for photovoltaic powered water pumping systems

Solar & Wind Technology, 1984

A~traet--In this work a model for each element as well as their interactions have been developed, [1][6]. The problem of obtaining the characteristics of the pump at different speeds beginning from the normally given nominal speed curve is explained. The power loss in the pump and motor are regarded in the model. The case of surface pumping from a river (constant head) has been considered too. The DC permanent magnet motor is selected due to its higher efficiency. A detailed example has been given to explain how to use the model. The DC permanent magnet motor centrifugal pump group is proved to be suitable for direct coupling with PV array in both cases of variable and fixed heads.

Performance Optimization and Modelization of a Photovoltaic Pumping System

American Journal of Energy Engineering, 2019

The photovoltaic (PV) pumping system is a widely used application in Mauritania to ensure the water supply in rural area for populations needs. The system is composed of a PV generator, a DC/DC converter, a DC/AC inverter, a BLDC motor and a centrifugal pump. Study in this article we study with simulation in Matlab/ Simulink environment the performances of the PV pumping system taking into account the climate parameters (solar irradiance, and ambient temperature), and the effect of the total manometric head (HMT) on the pumped flow rate. In addition it also counted the electrical energy and flow rate of the each climatic parameter. Two mathematical motor-pump models for PV application, were proposed in this article to contribute in the studies of PV pumping sizing. These models link directly the operating current to the voltage and electrical power to the flow rate of the pump versus total head.

Mathematic models of photovoltaic motor-pump systems

Renewable Energy, 2008

Photovoltaic (PV) pumping offers the possibility of supplying water to remote and desert regions for their daily needs. The sizing of the PV pumping systems is a very significant step in order to optimize the power peak of the PV array and to ensure the best choice of the motor, the pump and the inverter. Two mathematical models were proposed in this article to contribute in the studies of PV pumping sizing. These models link directly the operating electrical power to the water flow rate of the pump versus total head. These models are based essentially on the experimentation of pumps on CDER PV pumping test facility. Two pumping systems are tested: the first uses a centrifugal pump and the second uses a positive displacement pump. The results obtained by the models are very satisfactory. Also, the models enabled us to simulate the electrical and hydraulic performances of two tested pumps. The performances are calculated using the measured meteorological data of different sites located in Sahara and coastline regions of Algeria. r

Direct Torque Control of a Centrifugal Pump Powered by a Photovoltaic System with MPPT

International Journal of Advanced Research, 2020

Water pumping is a very important operation in the agricultural and industrial fields. Due to its arid nature, our Saharan environment has a significant solar energy resource that allows the installation of water pumping systems using photovoltaic solar pumps. For this type of system, and to improve its performance, a prior theoretical study is necessary. Given the intermittent and fluctuating nature of the solar resource, it is essential to set up a system that allows its optimal exploitation. The aim of this work is to describe, develop and simulate a direct control of the DTC torque of a solar pumping system with optimised efficiency. The system consists of a three-phase asynchronous motor, coupled to a centrifugal pump, powered by a photovoltaic generator. The operation of the photovoltaic generator will be ensured at its maximum power via the MPPT control of a BOOST converter. Two control strategies for the motor pump were implemented and compared.The first, based on a sinus-de...

Study of new configuration photovoltaic pumping system

2014 International Conference on Electrical Sciences and Technologies in Maghreb (CISTEM), 2015

Solar photovoltaic pumping system is one of most important of renewable energy applications especially in rural areas, In this paper, we present simple method of modeling and control of photovoltaic pumping system based BLDC centrifugal pump controlled by new improved incremental conductance in order to optimize the price and operation of pumping system this MPPT algorithm have many advantages like can be eliminate proportional integral controller. While the system is in a modeling and simulation using different toolbox of Matlab/Simulink, simulation results show that we can improve the operation system using simple and effective techniques.