Effective Utilization of Limited Channel PMUs for Islanding Detection in a Solar PV Integrated Distribution System

Abstract

The advancements in the field of wind turbine, solar photovoltaic (PV), fuel cell coupled with improved power electronics have increased reliability of renewable energy sources. The environmental benefits of these sources have forced the power industry to switch over for more distributed generations to meet the increasing load demand. Islanding in distribution system occurs when a portion of distribution system gets isolated from the rest of the grid and continues to supply the local load. Practically, all distributed generations (DG) are required to be disconnected immediately after the formation of island. It is done primarily to take care of safety of the operating personnel and to prevent power quality issues. Effective detection of islanding is an important area of concern. Prior to the integration of DG to the main electrical grid, each DG must be equipped with a suitable anti-islanding detection technique. In this paper, phasor measurement unit (PMU)based islanding detection technique is presented. The requirement of channel limits of PMUs is also incorporated, and significant results of industry and utility have been obtained. The study has been carried out using MATLAB/Simulink (version 2018a) creating several islanding and non-islanding cases in a PV integrated distribution grid.

Adaptive Control Strategy of Multiemergency Power Supply Network System Connected to New Energy

“…e coordination degree combination model conducts a comprehensive evaluation and research on the coordination degree of low-carbon power grid planning. Reference [9] analyzes the coordination degree between distribution network and power load from the aspects of reliability of power supply, equipment utilization, and characteristics of economic operation. Based on the analysis of the three aspects of safety, reliability, and economy, the literature [10] pointed out that photovoltaic power generation has an impact on the traditional power grid.…”

Optimization of Intelligent Distribution of Distribution Network in the Presence of Distributed Sources

“…Literature [8] established a model with the goal of minimizing the network loss of the distribution network and considered the uncertainty of the output of wind turbines and photovoltaics to evaluate the reconfiguration value of the distribution network in each time period. Literature [9] comprehensively considers the influence of the uncertainty of wind turbines, photovoltaics, and loads on the distribution network, first forms multiple scenarios, and then uses the EMD distance to evaluate the similarity between the scenarios to reduce the scenarios. Literature [10] considers the uncertainty between the outputs of various distributed power sources and uses a weighted hybrid two-dimensional Copula model to deal with the correlation between the two power sources of wind and solar to establish its probability joint density function to reconstruct the distribution network.…”

Implementation of PMU-Based Distributed Wide Area Monitoring in Smart Grid

“…Therefore, instead of concentrated data storage and analysis, distributed physical architecture needs to be developed under such conditions. This distributed architecture contains dedicated local PMUs and PDC that determines the operating states of the power system locally [3]. Decisions towards any perturbation in the power system can be accurately done by assessing the locally attained measurements at central PDC sent via proper communication channels.…”