Power Quality Experimental Analysis on Rural Home Grid-Connected PV Systems

被引:9
作者
Cerqueira Pinto, Rita Jorge [1 ]
Pinto Simoes Mariano, Silvio Jose [1 ]
Alves Calado, Maria do Rosario [1 ]
机构
[1] Univ Beira Interior, Dept Electromech Engn, IT, P-6201001 Covilha, Portugal
关键词
ELECTRIFICATION; ENERGY; GENERATION;
D O I
10.1155/2015/791680
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Microgeneration is the small-scale generation of heat or electric power or both, by individuals or buildings to meet their own needs. Recently, microgeneration is being regarded as a means to decentralize the power production of renewable energies, reducing the impacts on the grid caused by unexpected energy demands. Given the increase in microgeneration facilities, determining the quantity of energy produced and the power quality assumes growing importance in low, medium, or high voltage facilities. This paper presents a power quality analysis of two different facilities with photovoltaic generation localized in a rural area of Portugal, describing the voltage and frequency behaviour, the harmonic contents, and the total harmonic distortion. Statistical data are presented regarding the number of voltage events and occurrence of dips and swells in both facilities as a percentage of rated voltage. We conclude that some PV systems can severely affect voltage quality, forcing the grid to work at and even above the maximum voltage standard limit.
引用
收藏
页数:8
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