A Global Stability of Linearizing Control of Induction Motor for PV Water Pumping Application

2018 ◽  
Vol 7 (3) ◽  
pp. 31-56 ◽  
Author(s):  
Meziane Salima ◽  
Atarsia Loubna ◽  
Toufouti Riad
Keyword(s):  
Global Stability ◽  
Induction Motor ◽  
Rural Areas ◽  
Operating Conditions ◽  
Motor Speed ◽  
Nonlinear Controller ◽  
Photovoltaic Array ◽  
Water Pumping ◽  
Power Point ◽  
Robust Nonlinear Controller

This article describes how a field oriented control can provide the same performance as it is achieved by a DC motor. However, this technique requires a mechanic sensor and is very sensitive to the variation of motor parameters which results in an undesirable coupling between the flux and the torque. To solve these problems, this paper proposes a global stability and robust nonlinear controller, applied to induction motor (IM), in order to achieve an exact decoupling between speed and flux for all motor operating conditions. The induction motor is coupled with a centrifugal hydraulic pump, powered by a photovoltaic array speeding system. The proposed system is designed for usage in rural areas or remote electricity needs in absence of the grid network. A nonlinear controller adjusts the motor speed reference to attain the maximum power point (MPPT). In presence of rotor and stator resistances and irradiation disturbance the results obtained by simulations confirm the effectiveness of the proposed method.

scholarly journals Standalone photovoltaic array fed induction motor driven water pumping system

2020 ◽  
Vol 10 (5) ◽  
pp. 4534 ◽  
Author(s):  
Atarsia Loubna ◽  
Toufouti Riad ◽  
Meziane Salima
Keyword(s):  
Induction Motor ◽  
Transmission Lines ◽  
Rural Areas ◽  
Electrical Power ◽  
Energy System ◽  
Photovoltaic Array ◽  
Pumping System ◽  
Point Tracking ◽  
Water Pumping ◽  
Power Point

Due to the absence of energy transmission lines connected to the water pumping sites in remote areas, problems related to the electrical power outages and the environmental degradation caused by fossil fuel. For this one of the most conceived solutions is the photovoltaic water pumping technology which has the advantage of being sustainable and respectful of the environment to supply water to rural areas. To ensure the need of water, especially for domestic use and small communities, in this article, the photovoltaic energy system for autonomous water pumping using the induction motor was presented, particularly adapted to the isolated regions. Pumping system consists of four photovoltaic (PV) panels, boost converter, inverter, induction motor, centrifugal pump and a storage tank. In this study, the output power of a PV solar cell is fully used by proposing the P&O algorithm, where it is used to follow a maximum power point tracking (MPPT) technique. The recommended system is designed, modeled and simulated on the MATLAB/Simulink platform. The efficiency of the proposed algorithm is observed with variable solar sunshine.

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

Energies ◽  
2020 ◽  
Vol 14 (1) ◽  
pp. 104
Author(s):  
Neama Yussif ◽  
Omar H. Sabry ◽  
Ayman S. Abdel-Khalik ◽  
Shehab Ahmed ◽  
Abdelfatah M. Mohamed
Keyword(s):  
Induction Motor ◽  
Control Method ◽  
Power Converter ◽  
Pi Controller ◽  
Operating Conditions ◽  
Maintenance Cost ◽  
Prototype System ◽  
Solar Pv ◽  
Motor Speed ◽  
Water Pumping

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.

An Efficient Sensorless Slip Dependent Thermal Motor Protection Schemes Applied to Submersible Pumps

2015 ◽  
Vol 14 ◽  
pp. 75-86 ◽  
Author(s):  
Mohamed I. Abdelwanis ◽  
Fatallah Selim ◽  
Ragab Abdel-Aziz El-Sehiemy
Keyword(s):  
Induction Motor ◽  
Motor Performance ◽  
Estimation Algorithm ◽  
Operating Conditions ◽  
Motor Speed ◽  
Rotor Resistance ◽  
Three Phase ◽  
Submersible Motor ◽  
Abnormal Operating Conditions ◽  
Motor Protection

This paper proposes a sensorless procedure to estimate the induction motor speed and the dependable heat contents of the stator and rotor sides. The proposed procedure is based on the electrical models of a three phase Induction Motor (IM). The motor electrical models for normal and abnormal will be discussed and a technique is introduced for accommodating frequency dependent skin effect of the rotor resistance using a simple proposed speed estimation algorithm. The electrical models are customized from the positive and negative sequence networks. The speed detection is based on the rotor parameters slip dependent. The models are then used to analyze different operating conditions of the motor. Two thermal motor protection schemes are suggested. The first scheme is dependent on the stator side while the other scheme is developed for rotor side. The Matlab software is used for this purpose to emulate efficiently the proposed estimation procedures through a complete motor modeling which is fed from the power grid. Finally, the results provide the motor performance characteristics which involve current, torque, speed and stator/rotor temperature versus time for numerous operating conditions. It is concluded that the proposed sensorless procedure is efficient to protect the induction motors against abnormal starting as well as the overheating on either stator or rotor sides. Also, the proposed sensorless estimation for speed and temperature is reliable for submersible motor applications. The proposed schemes can be considered as costless preventive maintenance procedure.Index Terms: induction motor, slip dependent, sensorless, thermal model, abnormal operating conditions.

scholarly journals Decentralized T-S Fuzzy Control for Solar PV Powered Water Pumping System Driving by Induction Motor

2020 ◽  
Vol 22 (4-5) ◽  
pp. 301-311
Author(s):  
Zeineb Ben Safia ◽  
Moez Allouch ◽  
Mohamed Chaabane
Keyword(s):  
Induction Motor ◽  
Fuzzy Controller ◽  
Boost Converter ◽  
Climatic Conditions ◽  
Solar Irradiation ◽  
Solar Pv ◽  
Pumping System ◽  
Point Tracking ◽  
Water Pumping ◽  
Power Point

This paper presents a decentralized Takagi Sugeno (T-S) control scheme for a PV powered water pumping system, which is composed of a photovoltaic generator (PVG) supplying via a DC-DC boost converter, a DC-AC inverter, an Induction Motor coupled to a centrifugal pump. A T-S fuzzy controller is developed for MPPT (Maximum Power Point Tracking) to control the DC-DC boost converter, under variable solar irradiation and ambient temperature. An observer-based T-S fuzzy controller is dedicated to control the IM to guarantee the field-oriented control performances. From the optimal PV power provided in the MPP conditions, the optimal speed is calculated and delivered to control the IM, so that the proposed PV pumping system operates in optimal conditions and thus, maximizes the quantity of water pumped daily. Finally, simulation results are presented for both transient and steady state operation while taking into account all changes in climatic conditions, in order to validate the efficiency of the developed decentralized controller.

Solar PV Powered Standalone Water Pumping Systems

2018 ◽  
pp. 139-190
Author(s):  
Sachin Jain ◽  
Ramsha Karampuri ◽  
Ramulu Chinthamalla
Keyword(s):  
Induction Motor ◽  
Pulse Width Modulation ◽  
Low Cost ◽  
Integrated Control ◽  
Control Technique ◽  
Pumping System ◽  
Point Tracking ◽  
Power Point Tracking ◽  
Water Pumping ◽  
Power Point

The standalone solar photovoltaic (PV) powered water pumping system could have either two power conditioning units (PCUs) or a single PCU. The system with single PCU is advantageous over the prior because of low device count, smaller in size, low cost, low losses, and higher efficiency. This chapter includes four such single-stage PV water pumping systems. All the four systems are operated using the integrated control technique which assimilates maximum power point tracking (MPPT), pulse width modulation (PWM) technique, and motor control. But the PV systems differ in the inverter configuration used as well as the employed induction motor (conventional star connected and open-end winding induction motor [OEWIM]). The detailed description of mathematical modeling, design and analysis of all the four PV pumping systems along with the simulation results are presented in this chapter.

Non-Linear Adaptive Control of Induction Motor Drive for Standalone Photovoltaic Water Pumping System

2021 ◽  
pp. 450-476
Author(s):  
Salima Meziane ◽  
Riad Toufouti ◽  
Loubna Atarsia
Keyword(s):  
Nonlinear Control ◽  
Induction Motor ◽  
Rural Areas ◽  
Electrical Energy ◽  
Motor Drive ◽  
Induction Motor Drive ◽  
Domestic Water ◽  
Pumping System ◽  
Water Pumping ◽  
Rotor Flux

The integration in the isolated areas and rural sectors is a better solution for producing the electrical energy needed for applications such as pumping systems. The rural water demand for crop irrigation and domestic water supplies is increasing. For this, one of the most conceived solutions is the photovoltaic water pumping technology which has the advantage of being sustainable and respectful of the environment to supply water to rural areas. This chapter describes a robust control of a standalone photovoltaic water pumping system using induction motor drive coupled with a centrifugal hydraulic pump. The induction motor is controlled by algorithm called an adaptive nonlinear control uses a combination of the adaptive observer for rotor flux and nonlinear control technique. The variables to be controlled are the rotor speed and the rotor flux norm required to implement the nonlinear control algorithm is estimated by adaptive flux observer. Simulations are carried out in order to show the effectiveness of the drive and the robustness to parameters variations.

scholarly journals Optimization for a Photovoltaic Pumping System Using Indirect Field Oriented Control of Induction Motor

Electronics ◽  
2021 ◽  
Vol 10 (24) ◽  
pp. 3076
Author(s):  
Ikram Saady ◽  
Mohammed Karim ◽  
Badre Bossoufi ◽  
Saad Motahhir ◽  
Mohamed said Adouairi ◽  
...  
Keyword(s):  
Induction Motor ◽  
Rural Areas ◽  
Voltage Source ◽  
Variable Step Size ◽  
Field Oriented Control ◽  
Step Size ◽  
Pumping System ◽  
Pv Panel ◽  
Indirect Field Oriented Control ◽  
Power Point

Due to the increase in electricity and diesel costs, solar photovoltaic pumping systems have become a good solution, especially in rural areas. This work presents a standalone photovoltaic (PV) water pumping system (PVWPS) driven by an induction motor without energy storage to improve the pumping system’s performance. First, a comparison is made between two types: perturb and observe (P&O) method and incremental conductance (INC) MPPT method with a variable step size that is automatically adjusted. Studying these two techniques helps to understand which one can result in a system with less oscillation and greater efficiency when tracking the maximum power point from the PV panel under sudden irradiation conditions. This MPPT works on the operating duty cycle of the boost converter. Then, that converter combines with a voltage source inverter (VSI) to convert DC power to AC power. Second, we use indirect field-oriented control (IRFOC), which drives the three-phase of an induction motor in turn to run the centrifugal pump. The simulation results of this work were obtained using the MATLAB Simulink platform.

scholarly journals Design of Efficient Off-Grid Solar Photovoltaic Water Pumping System Based on Improved Fractional Open Circuit Voltage MPPT Technique

2021 ◽  
Vol 2021 ◽  
pp. 1-18
Author(s):  
Ali Hmidet ◽  
Umashankar Subramaniam ◽  
Rajvikram Madurai Elavarasan ◽  
Kannadasan Raju ◽  
Matias Diaz ◽  
...  
Keyword(s):  
Rural Areas ◽  
Open Circuit Voltage ◽  
Open Circuit ◽  
Operating Conditions ◽  
Maximum Power ◽  
Solar Photovoltaic ◽  
Pump System ◽  
Pumping System ◽  
Water Pumping ◽  
Three Phase

The main application of off-grid solar photovoltaic (SPV) systems is water extraction in rural areas where access to the grid is restricted. In this application, photovoltaic (PV) and pump system regulation are crucial to increase its overall efficiency. In this context, this work presents a simple and efficient off-grid SPV water pumping system (SPVWPS). The designed system is based on a DC-DC boost converter, a three-phase DC-AC inverter, and a three-phase induction motor (IM) coupled to the centrifugal pump. The proposed solution is operated using a control strategy that associates an improved fractional open-circuit voltage (FOCV) method for maximum power point tracking (MPPT) and closed-loop scalar control. This association avoids the use of a speed sensor/encoder and a current sensor for the IM. Finally, the effectiveness of the proposed off-grid SPVWPS and its control system for both steady-state and dynamic conditions of insolation change is verified using a 1KVA rated prototype. The relevance of the drive is also checked in various operating conditions and is found to be adequate for pumping water. Moreover, the proposed method guarantees a fast response, less oscillations around the MPP, a system efficiency of 99%, and a high flow rate due to the extraction of maximum power.

Induction Motor Speed Control with Solar Cell Using MPPT Algorithm by Incremental Conductance Method

2020 ◽  
Vol 27 (3) ◽  
pp. 8-16
Author(s):  
Omer Mahmmoud ◽  
Assad Nashi ◽  
Khadim Siddiqui
Keyword(s):  
Induction Motor ◽  
Pulse Width Modulation ◽  
Maximum Energy ◽  
Motor Speed ◽  
Point Tracking ◽  
Incremental Conductance ◽  
Conductance Method ◽  
The World ◽  
Power Point ◽  
Ac Converters

In the world, optimizing energy and finding new sources is important because of the increased consumption that occurred in all aspects of life. Nowadays, the world suffers of the reduction in the fossil fuel continuously. One solution to this problem is the sun and the photovoltaic (PV) cell. To get the benefits of PV, the DC/DC and DC/AC converters and inverters are combined in one set to get the better usage of these capabilities. Induction motor (IM) is the horsepower in the industry and will be considered the load in this work. The DC/DC Converter is used for control of IM speed in combination with maximum power point tracking (MPPT). Temperature and radiation change constantly over time, and the maximum energy should be tracked. This follow-up was performed using Incremental Conductance method (INC). INC is control buck-boost duty cycle converter. We get the best performance in INC technology and have less effect on the system. This algorithm uses INC of the MPPT to control half of horse power of IM. The sine pulse width modulation technique (SPWM) is used with three level inverters. Simulation on the Three-phase proves the efficiency of the suggested technique.

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