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The Study Of Ant Parallel Pv System

Posted on:2011-01-15Degree:MasterType:Thesis
Country:ChinaCandidate:L M YaoFull Text:PDF
GTID:2132360308964003Subject:Power electronics and electric drive
Abstract/Summary:PDF Full Text Request
Solar as a new type of renewable energy, with its inexhaustible, green environmental protection advantages of gaining the favor of the community. Solar photovoltaic effect as an effective way of increasing tension in recent years with the conventional energy sources, increasing pollution case, there is a growing emphasis on the development of new green energy, photovoltaic power generation technology to this opportunity, the development momentum in recent years strong. Photovoltaic power station gradually increased, the power gradually increased. Photovoltaic power station in the study design process, the first under the load demand and the local light intensity and venues, and many other factors to rational allocation of arrays of PV power station, developed a highly efficient controller, to improve power generation efficiency.This article based on existing research in the laboratory to analyze the series-parallel PV matrix structure of monolithic PV module power output characteristics of the efficiency of the entire square, test specifications of PV modules with different working conditions series, parallel, after the output characteristics. Through analysis and comparison of characteristic curves obtained when the differences between the output characteristics of PV modules, through the composition of the photovoltaic array in parallel mode power efficient than the series conclusion. Based on this conclusion, discard the original series and parallel structures photovoltaic array, a novel parallel approach. Combined design of the current Pump Controller together constitute the ant parallel photovoltaic power generation system.First introduced the basic semiconductor photovoltaic cells composed of PN junction of the working mechanism, the working principle of the photovoltaic effect and photovoltaic array of series and parallel structures. Analysis of photovoltaic array in the output characteristics of series-parallel structure, to visually observed to some differences in PV performance of the entire series and parallel structures affect the efficiency of the slip road series, designed to produce a DC digital electronic load for the principle , PIC16F877A MCU to control the test transmission to the under-core machine, programming the software developed based on Delphi7.0 tests described PC-side software for PC. Photovoltaic output characteristics of the common component tests, the curve describing the system. Accordingly, system test specification describes two kinds of photovoltaic modules with different configurations of the output characteristics and the location of the maximum power point, qualitative and quantitative analysis of the components in parallel on the efficiency of photovoltaic power generation system advantages.Photovoltaic array in accordance with the advantages of parallel structure, a new type of ant parallel photovoltaic power generation system. The developed technology to boost transformation efficiency as the core of the current pump, through the final test results show that the parallel structure of this new colony component output characteristics in response to different combination of photovoltaic array installation, the security line insulation design, system fault detection and so on than traditional PV systems have a strong series-parallel structure of the advantages.
Keywords/Search Tags:Photovoltaic array, series-parallel structure, ant parallel, characteristic curve, DC Digital Electronic Load
PDF Full Text Request
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