期刊名称：International Journal of Innovative Research in Science, Engineering and Technology
印刷版ISSN：2347-6710
电子版ISSN：2319-8753
出版年度：2016
卷号：5
期号：4
页码：6305
DOI：10.15680/IJIRSET.2016.0504227
出版社：S&S Publications
摘要：Technological progress and environmental concerns drive the power system to a paradigm shift withmore renewable energy sources integrated to the network by means of distributed generation (DG). These DG unitswith coordinated control of local generation and storage facilities form a microgrid. This microgrid inverter can eitherwork in a grid sharing mode while supplying a part of local load or in grid injecting mode, by injecting power to themain grid. Maintaining power quality is another important aspect which has to be addressed while the microgrid systemis connected to the main grid . This paper demonstrates a series and shunt voltage source inverter scheme, in which thepower generated by the microgrid is injected as real power by the series voltage source inverter and the reactive,harmonic, and unbalanced load compensation is performed by shunt voltage source inverter. This has an advantage thatthe rated capacity of series voltage source inverter can always be used to inject real power to the grid , if sufficientrenewable power is available at the DC link. In the series and shunt voltage source inverter scheme, as total load poweris supplied by two inverters, power losses across the semiconductor switches of each inverter are reduced.
关键词：Technological progress and environmental concerns drive the power system to a paradigm shift with;more renewable energy sources integrated to the network by means of distributed generation (DG). These DG units;with coordinated control of local generation and storage facilities form a microgrid. This microgrid inverter can either;work in a grid sharing mode while supplying a part of local load or in grid injecting mode; by injecting power to the;main grid. Maintaining power quality is another important aspect which has to be addressed while the microgrid system;is connected to the main grid . This paper demonstrates a series and shunt voltage source inverter scheme; in which the;power generated by the microgrid is injected as real power by the series voltage source inverter and the reactive;harmonic; and unbalanced load compensation is performed by shunt voltage source inverter. This has an advantage that;the rated capacity of series voltage source inverter can always be used to inject real power to the grid ; if sufficient;renewable power is available at the DC link. In the series and shunt voltage source inverter scheme; as total load power;is supplied by two inverters; power losses across the semiconductor switches of each inverter are reduced.
