Establishment and placement of a Multi-purpose Phasor measurement unit to improve parallel state estimation in distribution Networks

TL;DR

This paper proposes an optimal placement strategy for multifunctional phasor measurement units in distribution networks, utilizing neural-fuzzy methods to enhance parallel state estimation amid uncertainties and disturbances.

Contribution

It introduces a neural-fuzzy based approach for optimal placement of phasor measurement units to improve state estimation in distribution networks under uncertain conditions.

Findings

Simulation results show improved state estimation accuracy.

The proposed method effectively detects internal and external disturbances.

Optimal load distribution enhances network stability.

Abstract

Today, microgrids in distribution networks are in dire need of improvement to cope with economic challenges, human losses, and equipment placement issues. Today, there is the issue of scattered resources in distribution systems, which has created many problems in the areas of environment, economy, and human and animal losses. The most important challenge in this section is the existence of voltage and frequency fluctuations during the occurrence of possible events such as severe load changes or errors in distribution networks. Having such a big problem can call a distribution network into question and destroy it. Therefore, it is necessary to provide an optimal method that can meet and cover these challenges. For this purpose, the present research deals with the problem of establishing and placing a multifunctional phasor measurement unit to improve the parallel state estimation in distribution networks, which offers a control approach. This approach determines the time of occurrence of internal and external disturbances after using the phasor unit. The approach of this research is to use a neural-fuzzy method because there is uncertainty in the distribution network due to the mentioned challenges, and training in the system is needed to accurately deploy and place possible errors. Do not occur. When setting up and placing the phasor measuring unit, the most important issue is the proper distribution of the load in the distribution network. The simulation results in the MATLAB / Simulink environment show the improvement of the results according to the proposed approach. Keywords: Distribution Network, Neural-Fuzzy Network, Optimal Load Distribution, Parallel State Estimation, Phasor Measurement Unit.