Department of Informatics and Systems

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Power quality issue in Microgrid
(University of Management and Technology Lahore, 2017) Sohail Mustafa, Muhammad
The necessity of time demands the change from conventional power sources to self-comfort and generation of green sources to meet the need of its rapid increasing energy. Since the generation of electricity is at distant areas, its transmission to urban areas results in the losses. At distribution level, the types of non-linear and linear loads generate further power quality issues such as voltage drop, issues of reactive power and phase unbalance. To avoid above issues and making system more reliable at power system distribution level, a microgrid concept is introduced. Microgrid is fundamentally an outfit at the level of MV distribution system that consists of several units of distributed generation and regional loads. Microgrid has two modes of operation. (1) Grid-connected (2) Islanded mode. The instant change of Microgrid between their operation modes i.e. from grid-connected to Islanded mode generates issues of power quality i.e. fluctuation of voltage and deficiency of reactive power needs by loads. In this dissertation, the concept of microgrid is applied to the industrial load in real-time. As there is shortage of electricity demand in our country, the well-being of industry depends on analytical loads. The D-STATCOM technique of reactive power and voltage controlling are plotted for Microgrid smooth operation between their operating modes.