Solar PV array fed direct torque controlled induction motor drive for water pumping
01 Dec 2015-pp 1-6
TL;DR: In this paper, the soft starting of a three-phase induction motor is achieved by controlling the DC-DC boost converter through the incremental conductance maximum power point tracking (MPPT) technique.
Abstract: This paper deals with the solar photovoltaic (PV) array fed direct torque controlled (DTC) induction motor drive for water pumping system. To extract maximum power from the solar PV array, a DC-DC boost converter is employed. The soft starting of a three-phase induction motor is achieved by controlling the DC-DC boost converter through the incremental conductance maximum power point tracking (MPPT) technique. The induction motor is well matched to drive a type water pump due to its load characteristics. It is well suited to the MPPT of the solar PV array. By using DTC technique, an induction motor exhibits homogeneous or even better response than the DC motor drive. The proposed system is designed and its performance is simulated in MATLAB/Simulink platform. Simulated results are demonstrated to validate the design and control of the proposed system.
Citations
More filters
01 Aug 2017
TL;DR: A three stage power conversion consist of buck-boost converter and VSI, V/F controlled VSI and INC MPPT control which gives the duty ratio which control the dc-dc converter is proposed.
Abstract: In this paper a single phase water pumping IM drive is consider which is fed by SPV (Solar Photovoltaic) array system which buck-boost dc-dc converter. In this paper we proposed a three stage power conversion consist of buck-boost converter and VSI. In first step the main requirement is to extract maximum power from PV and it is done by MPPT control. In this paper INC MPPT control is used which gives the duty ratio which control the dc-dc converter. For better performance of IM, V/F controlled VSI is employed for DC-AC conversion. The V/F control generate required magnitude and frequency for SPWM which control VSI. The proposed model is modelled and simulated in Matlab/Simulink platform and result shows effectiveness of proposed system.
10 citations
01 Mar 2018
TL;DR: A direct torque control (DTC) technique is used for controlling the SynRM drive, because of its simple implementation, less sensitive to parameters variation and no need of co-ordinate transformation.
Abstract: This study presents a two stage solar water synchronous reluctance motor (SynRM) driven water pumping system. In this system, to optimize the output of solar PV (photovoltaic) array, a DC/DC converter is used. An incremental conductance based maximum power point technique (MPPT) is used for controlling the DC-DC converter to attain soft starting of the three phase SynRM. In this work, a SynRM is used because of its some inherent characteristics. The simple structure of SynRM makes it ideal for industrial drive arena, especially at low power. The SynRM is substantially highly efficient than other conventional drives used for water pumping. A direct torque control (DTC) technique is used for controlling the SynRM drive. DTC technique is used in this work, because of its simple implementation, less sensitive to parameters variation and no need of co-ordinate transformation. The proposed system is designed, modelled and simulated in MATLAB/Simulink platform. The design and control of the proposed system are validated by simulated results.
9 citations
Cites background from "Solar PV array fed direct torque co..."
...Now a days, induction motor driven solar water pumping systems have replaced DC motor based PV array fed water pumping systems because of low cost, reliable and robustness of induction motors [3]....
[...]
TL;DR: In this paper , a photovoltaic solar water pumping system (PVWPS) based on a three-phase induction motor (IM) with high performance, low cost, and without chemical energy storage is proposed.
Abstract: This paper aims to research a photovoltaic solar water pumping system (PVWPS) based on a three-phase induction motor (IM) with high performance, low cost, and without chemical energy storage. The proposed control for the PVWPS consists of two principal controllers. The first controller is used to control the system to reach its maximum using a robust MPPT control strategy that is based on the Kalman filter algorithm (KF-MPPT). While the second controller is based on 12-sectors Direct Torque Control (DTC). This technique is proposed to control the IM with the centrifugal pump through a three-level inverter with a neutral point clamped (NPC) structure. Furthermore, to increase the performance of the proposed control without affecting the system efficiency, the torque and flux hysteresis regulators level is increased to five and three levels, respectively. To see the behaviors of the PVWPS with the proposed control, the whole system was designed and simulated in the MATLAB/Simulink environment. This work also includes a comparative analysis to show the performance of the proposed control compared to the conventional controls. This analysis is done first to compare the performance of the KF-MPPT, VSS-P&O-MPPT, and VSS-INC-MPPT using variable radiation, and then to compare the proposed KF-MPPT-PDTC and the conventional KF-MPPT-DTC under a daily climatic profile. The simulated results showed that PVWPS with KF-MPPT and PDTC provide a better performance in terms of reference tracking, response time, torque and flux ripple reduction, current quality, as well as water pumped.
5 citations
TL;DR: In this paper, an improved modulation technique is proposed to improve the performance of series Z-source inverter (SZSI) with solar photovoltaic as a source and an induction motor coupled with the centrifugal pump as a load.
Abstract: For a stand-alone solar pump, Z-source inverter (ZSI) is being preferred because of its single-stage power conversion capability with buck-boost ability. As compared to traditional ZSI, series Z-source inverter (SZSI) reduces the voltage stress on capacitor and inrush current of the inductor significantly. In this paper, modes of operation of the SZSI for an induction motor load are explained. When an induction motor runs at a low power factor, an additional mode exists. In this mode, high-magnitude pulses appear on the DC link voltage if the decoupling capacitor is not used with an unidirectional source like solar photovoltaic (PV). In addition, an improved modulation technique is proposed to improve the performance of SZSI. This paper presents a performance of SZSI with solar photovoltaic as a source and an induction motor coupled with the centrifugal pump as a load. Simulation results show the performance of the proposed scheme. Experimental and simulation results demonstrate the validity of analysis. Therefore, SZSI is a promising topology for the solar PV stand-alone system.
4 citations
01 Mar 2020
TL;DR: This paper addresses the implementation of a high efficient soft switched Snubber Ass Zero Voltage and Zero Current (SAZZ) converter topology, integrated with a photovoltaic source, to power a three-phase Induction motor through three- phase inverter.
Abstract: Induction motor drive is the backbone of industrial societies. It also finds its application in Electrical vehicles. It is extensively required in rural areas for agricultural purposes, pumping drinking water, and in a water treatment process. Moreover, the necessity of switching from conventional means of generating energy to renewable methods has become the order of the day owing to its prime advantages of non-polluting nature and economic reasons. Hence, this paper addresses the implementation of a high efficient soft switched Snubber Assisted Zero Voltage and Zero Current (SAZZ) converter topology, integrated with a photovoltaic source, to power a three-phase Induction motor through three-phase inverter. Sinusoidal Pulse Width Modulation (SPWM) scheme is used for controlling the operation of the inverter employed. Variable frequency controller is utilized to control the speed of the Induction motor at a user defined value, in the midst of changing load conditions. Realization of the proposed work is carried out in Matlab atmosphere. The simulated results of the suggested work are compared with the Boost converter to validate the enriched response of the SAZZ converter.
4 citations
Cites background from "Solar PV array fed direct torque co..."
...The magnitude of DC-link voltage should be satisfying the relation given in (7) as mentioned in [2]....
[...]
...Moreover, it can meet the load requirements with low maintenance cost in rural areas where the grid has not established [2]....
[...]
References
More filters
Book•
01 Jan 2015
TL;DR: In this paper, the authors present a simulation of a six-step Thyristor Inverter with three-level Inverters and three-phase Bridge Invergers. And they present a Neural Network in Identification and Control toolbox.
Abstract: (NOTE: Each chapter begins with an Introduction and concludes with a Summary and References.) Preface. List of Principal Symbols. 1. Power Semiconductor Devices. Diodes. Thyristors. Triacs. Gate Turn-Off Thyristors (GTOs). Bipolar Power or Junction Transistors (BPTs or BJTs). Power MOSFETs. Static Induction Transistors (SITs). Insulated Gate Bipolar Transistors (IGBTs). MOS-Controlled Thyristors (MCTs). Integrated Gate-Commutated Thyristors (IGCTs). Large Band-Gap Materials for Devices. Power Integrated Circuits (PICs). 2. AC Machines for Drives. Induction Machines. Synchronous Machines. Variable Reluctance Machine (VRM). 3. Diodes and Phase-Controlled Converters. Diode Rectifiers. Thyristor Converters. Converter Control. EMI and Line Power Quality Problems. 4. Cycloconverters. Phase-Controlled Cycloconverters. Matrix Converters. High-Frequency Cycloconverters. 5. Voltage-Fed Converters. Single-Phase Inverters. Three-Phase Bridge Inverters. Multi-Stepped Inverters. Pulse Width Modulation Techniques. Three-Level Inverters. Hard Switching Effects. Resonant Inverters. Soft-Switched Inverters. Dynamic and Regenerative Drive Braking. PWM Rectifiers. Static VAR Compensators and Active Harmonic Filters. Introduction to Simulation-MATLAB/SIMULINK. 6. Current-Fed Converters. General Operation of a Six-Step Thyristor Inverter. Load-Commutated Inverters. Force-Commutated Inverters. Harmonic Heating and Torque Pulsation. Multi-Stepped Inverters. Inverters with Self-Commutated Devices. Current-Fed vs Voltage-Fed Converters. 7. Induction Motor Slip-Power Recovery Drives. Doubly-Fed Machine Speed Control by Rotor Rheostat. Static Kramer Drive. Static Scherius Drive. 8. Control and Estimation of Induction Motor Drives. Induction Motor Control with Small Signal Model. Scalar Control. Vector or Field-Oriented Control. Sensorless Vector Control. Direct Torque and Flux Control (DTC). Adaptive Control. Self-Commissioning of Drive. 9. Control and Estimation of Synchronous Motor Drives. Sinusoidal SPM Machine Drives. Synchronous Reluctance Machine Drives. Sinusoidal IPM Machine Drives. Trapezoidal SPM Machine Drives. Wound-Field Synchronous Machine Drives. Sensorless Control. Switched Reluctance Motor (SRM) Drives. 10. Expert System Principles and Applications. Expert System Principles. Expert System Shell. Design Methodology. Applications. Glossary. 11. Fuzzy Logic Principles and Applications. Fuzzy Sets. Fuzzy System. Fuzzy Control. General Design Methodology. Applications. Fuzzy Logic Toolbox. Glossary. 12. Neural Network Principles and Applications. The Structure of a Neuron. Artificial Neural Network. Other Networks. Neural Network in Identification and Control. General Design Methodology. Applications. Neuro-Fuzzy Systems. Demo Program with Neural Network Toolbox. Glossary. Index.
2,836 citations
TL;DR: In this paper, a comprehensive review of the MPPT techniques applied to photovoltaic (PV) power system available until January, 2012 is provided, which is intended to serve as a convenient reference for future MPPT users in PV systems. But, confusion lies while selecting a MPPT as every technique has its own merits and demerits.
Abstract: This paper provides a comprehensive review of the maximum power point tracking (MPPT) techniques applied to photovoltaic (PV) power system available until January, 2012. A good number of publications report on different MPPT techniques for a PV system together with implementation. But, confusion lies while selecting a MPPT as every technique has its own merits and demerits. Hence, a proper review of these techniques is essential. Unfortunately, very few attempts have been made in this regard, excepting two latest reviews on MPPT [Salas, 2006], [Esram and Chapman, 2007]. Since, MPPT is an essential part of a PV system, extensive research has been revealed in recent years in this field and many new techniques have been reported to the list since then. In this paper, a detailed description and then classification of the MPPT techniques have made based on features, such as number of control variables involved, types of control strategies employed, types of circuitry used suitably for PV system and practical/commercial applications. This paper is intended to serve as a convenient reference for future MPPT users in PV systems.
1,584 citations
TL;DR: In this article, the performance of the two control schemes is evaluated in terms of torque and current ripple, and transient response to step variations of the torque command, where secondary effects introduced by hardware implementation are not present.
Abstract: Field-oriented control and direct torque control are becoming the industrial standards for induction motors torque control. This paper is aimed at giving a contribution for a detailed comparison between the two control techniques, emphasizing advantages and disadvantages. The performance of the two control schemes is evaluated in terms of torque and current ripple, and transient response to step variations of the torque command. The analysis has been carried out on the basis of the results obtained by numerical simulations, where secondary effects introduced by hardware implementation are not present.
1,030 citations
TL;DR: A comparative analysis of PV module modeling methods based on the single-diode model with series and shunt resistances to draw conclusions on which combination of parameter estimation technique and modeling method best emulates the manufacturer specified characteristics.
Abstract: Modeling of photovoltaic (PV) systems is essential for the designers of solar generation plants to do a yield analysis that accurately predicts the expected power output under changing environmental conditions. This paper presents a comparative analysis of PV module modeling methods based on the single-diode model with series and shunt resistances. Parameter estimation techniques within a modeling method are used to estimate the five unknown parameters in the single diode model. Two sets of estimated parameters were used to plot the I–V characteristics of two PV modules, i.e., SQ80 and KC200GT, for the different sets of modeling equations, which are classified into models 1 to 5 in this study. Each model is based on the different combinations of diode saturation current and photogenerated current plotted under varying irradiance and temperature. Modeling was done using MATLAB/Simulink software, and the results from each model were first verified for correctness against the results produced by their respective authors. Then, a comparison was made among the different models (models 1 to 5) with respect to experimentally measured and datasheet I–V curves. The resultant plots were used to draw conclusions on which combination of parameter estimation technique and modeling method best emulates the manufacturer specified characteristics.
215 citations