Common Practices for Protection Against the Effects of Lighting on Stand-Alone Photovoltaic Systems
IEA
PRESENTED BY:
IEA PVPS
International Energy Agency
Implementing Agreement on Photovoltaic Power Systems
Task 3
Use of Photovoltaic Power Systems in Stand-Alone and Island
Applications
Report IEA PVPS T3-14: 2003
ABSTRACT

The International Energy Agency (IEA), founded in November 1974, is an stand alone body within the framework of the Organisation for Economic Co-operation and Development (OECD) ....etc

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Solar power (photovoltaic) systems



INTRODUCTION

1.1 BACKGROUND OF THE PROJECT
The consumption of the energy is directly proportional to the progress of the mankind. With ever growing population, improvement in the living standard of the humanity, industrialization of the developing countries, the demand for energy increases day by day.
The primary source of energy is fossil fuel, though results environmental degradation caused by their widespr ....etc

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DEVELOPMENT OF OPTIMISED CONTROL CONCEPT
FOR DECENTRALIZED PHOTOVOLTAIC HYBRID
ABSTRACT
Nowadays, decentralized photovoltaic hybrid systems have gained increasing ac-
ceptance on the distributed power supply market. However there are still some
drawbacks in their performance which mainly arise from conventional operation
control strategies. This paper presents an advanced control strategy of the supervi-
sory controller of the decentralized PV hybrid systems. The basic objectives of the
developed control concept are to achieve consi ....etc

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PRESENTED BY:
T. Vennela


ABSTRACT:
The electric power supplied by a photovoltaic power generation system depends on the solar radiation and temperature. Designing efficient PV systems heavily emphasizes to track the maximum power operating point.
This work develops a three-point weight comparison method that avoids the oscillation problem of the perturbation and observation algorithm which is often employed to track the maximum power point. Furthermore, a low cost control unit is dev ....etc

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Authors:
C.Govindaraju
Dr.K.Baskaran
Abstract:
This paper presents a generalized cascaded multilevel photovoltaic inverter topology for grid connected PV systems with hybrid phase disposition PWM control scheme. Hybrid PWM strategy based on the combination of fundamental frequency PWM and high frequency phase disposition PWM which reduces the power losses and improves energy efficiency. A digital proportional ....etc

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MAXIMUM POWER POINT TRACKING FOR PHOTOVOLTAIC SYSTEMS



INTRODUCTION
Renewable sources of energy acquire growing importance due to massive consumption and exhaustion of fossil fuel. Among several renewable energy sources, Photovoltaic arrays are used in many applications such as water pumping, battery charging, hybrid vehicles, and grid connected PV systems. As known from a (Power-Voltage) curve of a solar panel, there is an optimum operating point such that ....etc

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Abstract
When no transformer is used in a grid-connected photovoltaic
(PV) system, a galvanic connection between the grid and
the PV array exists. In these conditions, dangerous leakage currents
(common-mode currents) can appear through the stray capacitance
between the PV array and the ground. In order to avoid
these leakage currents, different inverter topologies that generate
no varying common-mode voltages, such as the half-bridge and
the bipolar pulsewidth modulation (PWM) full-bridge topologies,
have been proposed. The ne ....etc

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DR. B.A.T.U. LONERE

CHAPTER 1
INTRODUCTION

1.1 World Energy Situation

world energy consumption has still increased due to expected rapid increase of world population, especially in the third world and in new industrialized countries (NICs) because ever more humans also need ever more energy. Continually rapid growth is foreseen in the near future, with the world population rising from the present 6 billion to about 8 billion over the next 25 ....etc

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Abstract”
In this seminar a new maximum power point tracking algorithm for photovoltaic arrays is proposed. The algorithm detects the maximum power point of the PV. The computed maximum power is used as a reference value (set point) of the control system. ON/OFF power controller with hysteresis band is used to control the operation of a Buck chopper such that the PV module always operates at its maximum power computed from the MPPT algorithm. The major difference between the proposed algorithm and other techniques is t ....etc

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