SIMULATION OF EXACT MAXIMUM POWER POINT TRACKING OF PARTIALLY SHADED PV STRING USING CURRENT EQUALIZATION THEORY
Journal Title: International Journal of Engineering Sciences & Research Technology - Year 2015, Vol 4, Issue 5
Abstract
Maximum power point tracking (MPPT) algorithms are among the most important research topic related to photovoltaic (PV) system. Conventio nal MPPT method give effective results and easy to perform under uniform irradiation condition. However, as more than one local maxima is formed under partial shaded conditio ns so these methods are not absolutely successful. So, output power becomes lower than the absolute maximum. Conventional MPPT is designed to track the MPP will be trapped at the local MPP. Therefore, one of the challenges is to continuously track the absolute MPP while the environmental factors such as so lar irradiation, PV temperature and partial shaded condition are rapidly changing. Also, in these partially shaded conditions, series connection of PV modules gives lowest current in PV string. Th is reduces the output power of PV string. To achieve maximum output power , a converter is connected in p arallel with each PV module provides the extra (equalization) current in parallel with the shaded module to m ake the string current equal to the maximum string curre nt. The equalization current sup ports the PV module to have its voltage regulated at a value that corresp onds to its MPP voltage. This technique is known as DMPPT (Distribute d MPPT ) method.
Authors and Affiliations
Chandni Yogeshkumar Joshi
AUTOMATIC LIGHT AND WATER CONTROL IN PUBLIC GARDEN
Today with the advent of technology things are becoming quite easy and user-friendly. The pace of Progress in development of technology had led to invention of many revolutionary products. This revolution in technology...
Memory Efficient VLSI Architecture with High Throughput and Low Latency Image Decomposition Using 3D-DWT
DWT is a well known application of image and video compression technique. A high throughput and pipelined base architecture for lifting multilevel 3-D DWT has been proposed. The redundancies have been removed which res...
PRODUCT CATEGORIES INTEGRATION BY USING DATA MINING
The major important task of online ecommerce based web portals and commerce search engine based application is the integration of products into its own categories. Categorization of products from the data provider...
The Impact of Social Networking Banking on Indian Economy
Today’s financial services customers demand an ever- widening array of service and conduct most transactions are long gone. And with the growing amount of time consumers spend online, and with social networks and...
PERFORMANCE ANALYSIS OF COOPERATIVE COMMUNICATION FOR DUALHOPE RELAYING NETWORK WITH HARDWARE IMPAIRMENT OVER RAYLEIGH FADING CHANNEL
The cooperative communication becomes an important topic in the field of wireless communication network to improve the reiliability and speed of communication over long distance and curvbed surface. As distance is...