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3rd International Conference on Computing for Sustainable Global Development (INDIACom)

作者： Malhotra, Ahana Gaur, Prerna Vij, Shitiz Malhotra, Charvi JRE Sch Engn Greater Noida India Netaji Subhas Inst Technol New Delhi India Dehradun Inst Technol Dehra Dun Uttar Pradesh India Miranda House Delhi India

ISBN: (纸本)9789380544199

In this paper zeta converter is used as dc-dc converter which is designed, simulated and analyzed in solar energy system. The complete model of solar energy system is simulated in MATLAB 8.1 using simulink. This model has solar arrays, zeta converter, inverter and single phase asynchronous motor which is used as a load in this system. Maximum power point tracking algorithm is used to achieve maximum power from photovoltaic array and PID controller is used to control the switching of dc-dc converter.

关键词： Inverter perturb and observe algorithm single phase asynchronous motor Solar Array ZETA converter

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Self -Correction algorithms used In performance Optimization of Wireless Battery Charger

Self -Correction Algorithms used In performance Optimization...

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International Renewable Energy Congress

作者： Ihsen Jabri Adel Bouallegue Fethi Ghodbane Université de Tunis El Manar ENIT-L.S.E BP 37-1002 Tunis le Belvédère Tunis Tunisie Université de Sousse ENISO-SAGE Sousse Tunisie

ISBN: (纸本)9781467397698

This paper focuses on wireless power transfer based on Witricity technology, specifically wireless battery charger application for electric vehicle. In order to reach efficient power transfer, a principle of coupling magnetic resonance at high frequency is used. However, in high range frequency, several losses may offer such as peak power, switching losses as well as reducing the size of the required battery capacity. In order to avoid the battery's damage, perturb and observe maximum power point tracking algorithm connected with photovoltaic panel is performed. The main objective of this contribution based on proposing a self-correction algorithm to adjust misalignment between primary and secondary coils caused by a random parking of the electric vehicle and to produce suitable input power battery at important frequency level.

关键词： Wireless battery charger electric vehicle self-correction perturb and observe algorithm maximum power point tracking misalignment

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Comparison of IC and P&O algorithms in MPPT for grid connected PV module

Comparison of IC and P&O algorithms in MPPT for grid connect...

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International Conference on Modelling, Identification and Control (ICMIC)

作者： Ahmed Saidi Chellali Benachaiba Electrical engineering department Tahri Mohammed University Béchar Béchar Algeria

ISBN: (纸本)9781509015948

In the last decade, the use of renewable energy resources instead of fossil fuels pollutants has increased exponentially. Photovoltaic energy generation is ever more important as a renewable resource since it does not cause in fuel costs, pollution, maintenance, and emitting noise compared to other renewable resources as more accessibility of solar irradiation. In this paper, The Maximum Power Point Tracking (MPPT) controller for boost converter based on perturb and observe control is developed and compared to conventional tracking algorithm Incremental Conductance. The different steps of the design of these controllers are presented together with its simulation. The whole system is simulated under standard climatic conditions (1000 W/m2, 250C) in MATLAB and the irradiance is varied from 600 W/m2 to 900 W/m2. Results of this simulation shown that the system with MPPT using P&O controller increase the efficiency of energy production from PV.

关键词： Grid connected PV model MPPT perturb and observe algorithm incremental conductance algorithm

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MPP detection of a partially shaded PV array by continuous GA and hybrid PSO

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AIN SHAMS ENGINEERING JOURNAL 2015年第2期6卷 471-479页

作者： Shankar, G. Mukherjee, V. Indian Sch Mines Dept Elect Engn Dhanbad 826004 Jharkhand India

Power versus voltage curve of a uniformly shaded photovoltaic (PV) array has only one maximum power point (MPP). However, when the array is partially shaded, there may be several local MPPs and there exists only one global MPP. The commonly employed perturb and observe (P&O) algorithm works well in detecting the MPP of a PV array when the array is uniformly shaded. However, when the array is partially shaded, the operating point based on P&O method may converge to a local MPP of the array rather than the global one resulting in its under-utilization. In this paper, continuous genetic algorithm (CGA) and hybrid particle swarm optimization (HPSO) algorithm are adopted in detecting the global MPP of a partially shaded PV array. It is observed that the performance of the HPSO is better than either P&O method or the CGA in finding the global maxima of a partially shaded PV array. (C) 2014 Faculty of Engineering, Ain Shams University. Production and hosting by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://***/licenses/by-nc-nd/3.0/).

关键词： Continuous genetic algorithm Hybrid particle swarm optimization Maximum power point tracker perturb and observe algorithm Photovoltaic array

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Design and implementation of an indoor test bench for validation of solar MPPT algorithms 12

Design and implementation of an indoor test bench for valida...

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12 IEEE Int C Elect Energy Env Communications Computer Control

作者： Khadse, Mayuresh Jadhav, Vinaya Daware, Kaustubh Sharma, Shobhit Rajwade, Mukta Patil, Prachi Coll Engn Dept Elect Engn Pune Maharashtra India

ISBN: (纸本)9781467365406

As a solution to the problem of increasing deficit of electrical energy, the use of renewable energy sources is increasing. Application of renewable energy resources in electricity generation system is done in a variety of configurations such as standalone photovoltaic plants, standalone wind power plants, Microgrid system, etc. The system described and developed in this paper, aims to realize a low cost, reliable and robust test bench for testing various maximum power point tracking algorithms. This paper introduces photovoltaic simulator implemented using simple controllable DC power supply and PC, with the capability of simulating wide range of irradiance and temperature conditions. The system consists of PWM controlled boost chopper, microcontroller with inbuilt real time control capability and respective sensors for implementation of various algorithms. The proposed system is a part of COEP-Microgrid, a project initiated by the students of College of Engineering, Pune, which aims at establishing a Microgrid in the college campus. perturb & observe algorithm has been implemented on this test bench to check and verify the ability of the system.

关键词： Solar Panel Simulator DC-DC converter Maximum power point tracking perturb and observe algorithm

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Considerations on Problem-Based Learning in the Laboratory Teaching of Microcontrollers Basics 11

Considerations on Problem-Based Learning in the Laboratory T...

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11th International Symposium on Electronics and Telecommunications (ISETC)

作者： Trip, Nistor Daniel Univ Oradea Dept Elect & Telecommun Oradea Romania

ISBN: (纸本)9781479972678

This paper presents aspects concerning a possible unfolding manner of laboratory hours at a microcontrollers course for students who attend applied electronics or other related specializations in engineering education. The purpose of the paper is to present a practical, problem-based way of unfolding the laboratory hours. The objectives were: orientation of lab didactic activity towards solving problems from society or the economic environment, sending to students a wide range of information useful in their future careers as engineers, increase of students' satisfaction degree regarding the educational offer and the way it is taught, finding the students who have definite design and research skills so as they should be attracted later into the scientific research projects of the department or the faculty they attend and, last but not least, to motivate and improve the technical skills of the students. In the present work, the teaching method is described in case it is chosen as design theme the construction of an electronic circuit based on a microcontroller which provides optimized conversion of solar energy captured by the photovoltaic panels. In the paper it is presented the new theme of laboratory hours and the final solution which should be reached by the students.

关键词： engineering education problem-based learning perturb and observe algorithm microcontrollers laboratory

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A Global MPPT algorithm for PV System under Rapidly Fluctuating Irradiance

A Global MPPT Algorithm for PV System under Rapidly Fluctuat...

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29th Annual IEEE Applied Power Electronics Conference and Exposition (APEC)

作者： Yeung, Ryan Shun-cheung Chung, Henry Shu-hung Chuang, Steve Tzu-hsiung City Univ Hong Kong Ctr Smart Energy Convers & Utilizat Res Tat Chee Ave Kowloon Tong Hong Kong Peoples R China Provista Technol Ltd Kwun Tong Peoples R China

ISBN: (纸本)9781479923250

A two-step global maximum power point (GMPP) tracking algorithm for photovoltaic (PV) system powered by a string of series-connected solar panels will be presented. In the first step, the power-voltage characteristics of the string is extracted by changing the input impedance of the inverter through three phases, so as to determine the number of panels in operation at the approximated GMPP. In the second step, the exact location of the GMPP is determined by formulating two second-order power functions, namely actual string power function and fictitious power function, and finding the intersection point of the two functions. The proposed algorithm has been evaluated on a 3kW grid-tie PV system with a PV simulator connected. The two different power-voltage characteristics are programmed and switched in order to test and compare the tracking performances of traditional perturband- observe (P&O) and proposed MPPT algorithms. Results show that the proposed algorithm takes 2.5 seconds for the step-1 process and 1 second for the step-two process to locate the GMPP. Without the first step, the speed of the second step is three times faster than the P& O algorithm.

关键词： maximum power point trackers photovoltaic power systems PV system global MPPT algorithm input impedance perturb and observe algorithm photovoltaic system power 3 kW rapidly fluctuating irradiance series connected solar panels two step global maximum power point tracking algorithm Approximation algorithms Inverters Photovoltaic cells Resistance Schottky diodes Temperature

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PV Array Characteristics Analysis Under Partial Shading & Modeling of P&O MPPT Applied Boost Convertor Using Matlab/Simulink

PV Array Characteristics Analysis Under Partial Shading & Mo...

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International Conference on Energy Efficient Technologies for Sustainability (ICEETS)

作者： Joseph, Alex Kamala, J. Anna Univ Coll Engn Guindy ECE Dept Chennai 600025 Tamil Nadu India

ISBN: (纸本)9781467361507;9781467361491

This paper deals with analysis of a photovoltaic panel array characteristics by considering partial shading effects and modeling of perturb and observe MPPT (Maximum Power Point Tracking) algorithm applied boost convertor using Matlab/Simulink. Performance of a photovoltaic (PV) array is affected by temperature, solar insolation, shading and array configuration. Analysis of photovoltaic array characteristics plays an important role in developing an algorithm based devices for Maximum power point tracking (MPPT). Such devices play an important role in efficient usage of available solar energy. The analyzer developed in command window reads panel temperature, irradiance and number of cells exposed to light and generates corresponding PV characteristics. Maximum power point tracking algorithm is used to generate pulse width modulated signal for boost convertor thus extracting the maximum power from the solar PV module and transferring that power to the load. perturb and observes algorithm is used, which is the simplest algorithm for implementation.

关键词： Matlab based analyzer partial shading effects Maximmum power point tracking(MPPT) perturb and observe algorithm

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Multiple Solar Panels Maximum Power Point Tracking Using the Output Current

Multiple Solar Panels Maximum Power Point Tracking Using the...

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33rd IEEE International Telecommunications Energy Conference (INTELEC)

作者： Jiang, Yuncong Abu Qahouq, Jaber A. Univ Alabama Dept Elect & Comp Engn Tuscaloosa AL 35487 USA

ISBN: (纸本)9781457712500

This paper focuses on developing an MPPT controller suitable for multiple PV panel maximum power points tracking. In the presented PV system MPPT controller, instead of sensing both the voltage and current from the PV panel, only the output current of the power converter following the solar array is sensed and used as the control variable in the P&O algorithm. This results in reduced cost and size. The controlled operation is tested and verified experimentally by using a proof-of-concept laboratory prototype.

关键词： Photovoltaic MPPT Maximum Power Tracking perturb and observe algorithm Solar Energy PV system Power Converter

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Energy Efficient Fine-grained Approach for Solar Photovoltaic Management System

Energy Efficient Fine-grained Approach for Solar Photovoltai...

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33rd IEEE International Telecommunications Energy Conference (INTELEC)

作者： Jiang, Yuncong Abu Qahouq, Jaber A. Hassan, Ahmed Ahmed, Mahrous E. Orabi, Mohamed Univ Alabama Dept Elect & Comp Engn Tuscaloosa AL 35487 USA South Valley Univ APEARC Aswan City 81542 Egypt

ISBN: (纸本)9781457712500

The paper's main objective is to develop an Energy Efficient Solar Photovoltaic (PV) Management System that especially addresses the partial shading effects, among other cells mismatches, in a solar PV array/panel. In the presented Fine-Grained (FG) system, each single solar PV cell or a group of solar PV cells has its own MPPT (Maximum Power Point Tracking) controller and the power converter associated with it. The FG MPPT PV solar power management approach can ensure true maximum power point tracking (extract higher amount of power) under unified illumination conditions and under partial shading conditions. While the FG MPPT approach can have digital or/and analog implementations, this paper focuses on proposing an analog circuit implementation to reduce cost and size and to simplify system integration. Orcad/Pspice (R) simulation results verify the operation and advantages of the proposed FG system and circuits.

关键词： PV Solar perturb and observe algorithm Solar Energy Power Converter MPPT Partial Shading Fine Grained

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