Microgrid performance study: Grid connected and Islanding under common disturbance & approach

Abstract

Microgrid is meant to a distribution grid and capable to supply electrical power as per the consumer's demand effectively. This grid is normally located at the point of common demand and provides improved power quality in concern to the demand side behavior. Since the grid level in KW based or hardly in few MW based hence the grid is so named. In this proposed study a microgrid is modelled by integrating different distributed generation (DG) based power generating equipments. Some limitations are also found in the microgrid system which could be solved through different fundamental approached. The inertial less microgrid can not able to support the instant load deviation and consequently produces frequency and voltage fluctuations in the system especially in islanding situations. In grid connected operation, the power grid injects high inertia the time of disturbances so as to maintain steady performance after few little instabilities. This article specially focuses the importance of utility grid for a microgrid and same time highlights the effectiveness of a novel water cycle algorithm based three degree of freedom controller (3dof) in regard to optimization & control action of this study.