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[Smart Innovation, Systems and Technologies] Smart Intelligent Computing and Applications Volume 105 (Proceedings of the Second International Conference on SCI 2018, Volume 2) || Modeling of PV Powered Seven-Level Inverter for Power Quality Improvement
摘要： In this article, a solitary-phase seven-level series connected H-Bridge powered by photovoltaic MPPT-based SHAPF in view of basic controller is proposed. SRF is utilized for reference input current extraction and to create pulses for the SHAPF. The principle point of the cascaded bridge is to dispense harmonics, enhance power factor, and reactive energy compensation of the single-phase distribution framework. The suggested control calculation has two parts, changing the load current into stationary reference outline directions and estimation of peak amplitude of load currents. Consequently, a basic and dependable controller effortlessly of execution was created. The calculation for single-phase SHAF is intending to perform with exact tracking performance under step changes in load currents and to give great dynamic compensation. In this article, synchronous reference theory PLL with Inverse-Park change is adopted for generating quadrature part of current. The execution of the control calculation is tried and assessed utilizing MATLAB/Simulink tool.
关键词： Power Quality,MPPT,SRF,Photovoltaic,SHAPF,Seven-Level Inverter
更新于2025-09-23 15:21:01
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Performance investigation of grid integrated photovoltaic/wind energy systems using ANFIS based hybrid MPPT controller
摘要： The solar energy and wind energy are two natural, renewable energy resources for the mankind, for the energy supply without hassles that provided an avenue for its utilization. For the efficient of the resources, wind power generation is one of the options in association with a photovoltaic system for preserving solar energy. Hence the current system requires technology to be involved to control the operation to satisfy the major concern as initially a combinational hybrid system to keep track maximum power, DC voltage input and trade-off between renewable energy delivered for interconnections. The fluctuation in power for interconnection can be minimized by adaptive neuro fuzzy interference method (ANFIS) dependent maximum power point tracking (MPPT) system and microscopically trusted ANFIS based system. In this paper the hybrid MPPT controllers are compared that is with perturb-observe (P&O) and tip speed ratio (TSR) as one set of MPPT controller and another side incremental conductance method (ICM) and hill climb search (HCS) both the controllers are tested with the ANFIS. The proposed system to satisfy the defined objectives is modeled using MATLAB/SIMULINK software by connecting power grid system to inverter influenced by ANFIS controller.
关键词： PV system,PMSG,Hybrid system,MPPT,Voltage source inverter (VSI)
更新于2025-09-23 15:19:57
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Performance analysis of the Single-Phase Grid-Connected Inverter of a photovoltaic system in water and wind applications
摘要： Single-phase grid connected inverters are nowadays broadly developed and tested in various types of applications especially in photovoltaic systems. The main aim of the inverter control strategy is to extract the maximum energy from the PV system which corresponds to the maximum power at certain conditions. However, the MPPT methods are also important in other renewable energy conversion systems. This paper analyses the performance of a commercially available photovoltaic inverter in water and wind systems. Presented models are implemented in a laboratory test bench in the form of torque characteristics realised by an induction motor fed by the inverter with vector control. The parameters are scaled into relative variables to provide a proper performance comparison. Presented tests include step response to assess the performance of a system dynamic. The dynamic tests showed a fast response of the investigated systems. The MPPT tracking accuracy tested under realistic profiles is similar for both cases: 98% and 96% respectively for the wind and water systems. These results prove the satisfactory performance of the MPPT of the PV microinverter in these applications.
关键词： Single-phase grid-connected inverter,wind turbine,water turbine,MPPT,photovoltaic system
更新于2025-09-23 15:19:57
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[IEEE 2019 FISE-IEEE/CIGRE Conference - Living the energy Transition (FISE/CIGRE) - Medellin, Colombia (2019.12.4-2019.12.6)] 2019 FISE-IEEE/CIGRE Conference - Living the energy Transition (FISE/CIGRE) - Design and Implementation of a Multiplier SEPIC Converter to Emulate a Photovoltaic System Using Power HIL
摘要： This paper presents the design and implementation of a multiplier Single-Ended Primary-Inductor Converter (SEPIC) for a Power-Hardware-in-the-Loop (Power HIL) emulator of a PV system. The emulation system has been developed in a dSPACE 1104, allowing to exchange the data from a voltage variable power supply and the SEPIC converter in order to extract the maximum power from a solar panel. This methodology is intended for the evaluation of supervision strategies using a Power Hardware-in-the-Loop approach. The proposed project would offer laboratory studies closer to the collection of raw data in a fieldwork, thus facilitating the development of new technologies by obtaining faster and more comfortable results.
关键词： MPPT,solar PV system,DC/DC converter,multiplier SEPIC
更新于2025-09-23 15:19:57
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Simple and Low-Cost Photovoltaic Module Emulator
摘要： The design and testing phase of photovoltaic (PV) power systems requires time-consuming and expensive field-testing activities for the proper operational evaluation of maximum power point trackers (MPPT), battery chargers, DC/AC inverters. Instead, the use of a PV source emulator that accurately reproduces the electrical characteristic of a PV panel or array is highly desirable for in-lab testing and rapid prototyping. In this paper, we present the development of a low-cost microcontroller-based PV source emulator, which allows testing the static and dynamic performance of PV systems considering different PV module types and variable operating and environmental conditions. The novelty of the simple design adopted resides in using a low-cost current generator and a single MOSFET converter to reproduce, from a fixed current source, the exact amount of current predicted by the PV model for the actual load conditions. The I–V characteristic is calculated in real-time using a single diode exponential model under variable and user-selectable operating conditions. The proposed method has the advantage of reducing noise from high-frequency switching, reducing or eliminating ripple and the demand for output filters, and it does not require expensive DC Power source, providing high accuracy results. The fast response of the system allows the testing of very fast MPPTs algorithms, thus overcoming the main limitations of state-of-art PV source emulators that are unable to respond to the quick variation of the load. Experimental results carried on a hardware prototype of the proposed PV source emulator are reported to validate the concept. As a whole result, an average error of ±1% in the reproduction of PV module I–V characteristics have been obtained and reported.
关键词： photovoltaic emulator,single diode model,MPPT,photovoltaic panel
更新于2025-09-23 15:19:57
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Modified variable step incremental-conductance MPPT technique for photovoltaic system
摘要： Maximum power point (MPP) Tracking, which is usually referred as MPPT, is a setup that forces the photovoltaic (PV) module to operate in such a way that the PV module will yield the maximum power, which in turn depend upon the solar illumination and surrounding temperature. Amidst all the MPPT designs, perturb & observe and incremental conductance (INC) algorithms are mostly selected due to easy implementation and good tracking credibility. The conventional MPPTs based on fixed step size give less power output and at every step tracking is required for new location due to random variation is a tedious job. In this paper the variable step size INC-MPPT technique is proposed which automatically tracks the next step size to maximize the power output. The comprehensive comparison is presented using MATLAB/SIMULINK between conventional and improved MPPT.
关键词： Maximum power point tracking (MPPT),Variable step size INC,Maximum power point (MPP),Photovoltaic (PV),Incremental-conductance (INC)
更新于2025-09-23 15:19:57
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Development of a New Maximum Power Point Tracking Method for Power Conversion Efficiency Measurement of Metastable Perovskite Solar Cells
摘要： A new algorithm for the maximum power point tracking (MPPT) method has been developed in order to determine the maximum power (Pmax) for slow-responding metastable PV devices such as perovskite solar cells (PSCs). It is well known that such devices often cause significant Pmax oscillation during a standard MPPT measurement. This oscillation was found to occur caused by difference in the current acquired after increasing the voltage and that acquired after decreasing the voltage. The new algorithm developed in this paper has eliminated such oscillation with comparison between the powers at different voltages after changing the voltage in the same direction. Pmax data determined by using this algorithm were found to be reliable by comparing with those determined by the dynamic I-V measurements.
关键词： Maximum Power,MPPT,Oscillation,Perovskite Solar Cell
更新于2025-09-23 15:19:57
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Control methodology and implementation of a Z-source inverter for a stand-alone photovoltaic-diesel generator-energy storage system microgrid
摘要： This paper deals with the control and implementation of a bidirectional Z-source inverter for a photovoltaic-diesel generator-energy storage hybrid system. The proposed control strategy is based on the voltage regulation across one of the Z-network capacitor (Vcz), through a buck-boost converter of the storage system side. In some critical situations, where the load power is important, the Vcz voltage regulation is no longer able to ensure the duration of the necessary state shoot-through for the maximum power point tracking achievement. In this context, the diesel generator can therefore be solicited to ensure the shoot-through duration and achieve maximum power point tracking so that it can be used more advantageously without any harmful e?ects on the Z-source inverter operation. The e?ectiveness of the proposed control strategy is evaluated and validated by extensive simulations and experiments.
关键词： Energy maximum power point tracking (MPPT),Hybrid system,Microgrid,Photovoltaic generator,Z-source inverter,Diesel generator,Energy storage system
更新于2025-09-23 15:19:57
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[IEEE 2020 5th International Conference on Devices, Circuits and Systems (ICDCS) - Coimbatore, India (2020.3.5-2020.3.6)] 2020 5th International Conference on Devices, Circuits and Systems (ICDCS) - Recent Research Trends in Solar Photovoltaic Systems
摘要： In recent years, conventional energy sources are depleting and getting exhausted. In replacement of this, solar Photovoltaic (PV) systems are used because of its free availability, renewability and less operating cost. But the constraints such as low ef?ciency, dependability on weather conditions are overcome by using maximum power point tracking(MPPT) algorithms and ef?cient converters to produce the maximum power output. MATLAB/Simulink is used to model and analyze PV array, MPPT algorithms, and converters. In this paper, recent research developments in PV array, various MPPT techniques, many ef?cient Converters are presented. This paper will give an overall idea about the present research trends in the ?eld of Solar Photovoltaic systems.
关键词： Solar Photovoltaic Systems,Converters,Solar PV array,PID controllers,MPPT
更新于2025-09-23 15:19:57
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[IEEE 2018 IEEE Energy Conversion Congress and Exposition (ECCE) - Portland, OR, USA (2018.9.23-2018.9.27)] 2018 IEEE Energy Conversion Congress and Exposition (ECCE) - A Novel Differential Power Processing Architecture for a Partially Shaded PV String Using Distributed Control
摘要： This paper proposes a differential power processing (DPP) architecture applied to a series PV string which enables each PV element to operate at its local maximum power point (MPP) while processing only a small portion of its total generated power through the module integrated converters (MICs). The current processed through each converter is the difference between the local PV element MPP current and the local PV string current. This feature allows for a reduced current stress on the MIC components relative to the most common DPP topology. Thus, a higher system efficiency is realized at a reduced cost. A state space model of the proposed system is derived, and a comparison analysis is carried out with respect to the conventional DPP architectures. Additionally, a modular and compact design is proposed for a large number of PV panels in a series PV string. A hardware prototype is designed and built for 3 PV panels connected in series to validate the proposed architectures effectiveness and experimentally demonstrate its robustness. The modularity of the system is also tested to ensure low current and voltage stress on the MICs.
关键词： Distributed Control,maximum power point tracking (MPPT),Differential Power Processing,DC-DC Converters,Photovoltaic (PV) String,Partial Shading
更新于2025-09-23 15:19:57