Application of phasor measurement units in distribution networks

2013 ◽  
Author(s):  
M. Wache
Keyword(s):  
Distribution Networks ◽  
Phasor Measurement Units ◽  
Phasor Measurement ◽  
Measurement Units

Automatic Fault Location on Distribution Networks Using Synchronized Voltage Phasor Measurement Units

2014 ◽  
Author(s):  
Jonathan Lee
Keyword(s):  
Distribution System ◽  
Fault Location ◽  
Low Cost ◽  
Distribution Networks ◽  
Phasor Measurement Units ◽  
Test Case ◽  
Total Load ◽  
Phasor Measurement ◽  
Service Restoration ◽  
Measurement Units

Automatic fault location on the distribution system is a necessity for a resilient grid with fast service restoration after an outage. Motivated by the development of low cost synchronized voltage phasor measurement units (PMUs) for the distribution system, this paper describes how PMU data during a fault event can be used to accurately locate faults on the primary distribution system. Rather than requiring many specialized line sensors to enable fault location, the proposed approach leverages a PMU data stream that can be used for a variety of applications, making it easier to justify the investment in fault location. The accuracy of existing automatic fault location techniques are dependent either on dense deployments of line sensors or unrealistically accurate models of system loads. This paper demonstrates how synchronized voltage measurements enable sufficiently accurate fault location with relatively few instrumentation devices and relatively low fidelity system models. The IEEE 123 bus distribution feeder is examined as a test case, and the proposed algorithm is demonstrated to be robust to variations in total load and uncertainty in the response of loads to voltage sags during a sample set of varied fault conditions.

Harmonic state estimation for distribution networks using phasor measurement units

2017 ◽  
Vol 147 ◽  
pp. 133-144 ◽  
Author(s):  
Igor D. Melo ◽  
José L.R. Pereira ◽  
Abílio M. Variz ◽  
Paulo A.N. Garcia
Keyword(s):  
State Estimation ◽  
Distribution Networks ◽  
Phasor Measurement Units ◽  
Phasor Measurement ◽  
Measurement Units

scholarly journals Advanced Distribution Measurement Technologies and Data Applications for Smart Grids: A Review

Energies ◽  
2020 ◽  
Vol 13 (14) ◽  
pp. 3730 ◽  
Author(s):  
Antonio E. Saldaña-González ◽  
Andreas Sumper ◽  
Mònica Aragüés-Peñalba ◽  
Miha Smolnikar
Keyword(s):  
Distribution System ◽  
Smart Grids ◽  
Distribution Systems ◽  
Distribution Networks ◽  
Phasor Measurement Units ◽  
Distribution Grid ◽  
Smart Meters ◽  
Phasor Measurement ◽  
Power Quality Monitoring ◽  
Measurement Units

The integration of advanced measuring technologies in distribution systems allows distribution system operators to have better observability of dynamic and transient events. In this work, the applications of distribution grid measurement technologies are explored in detail. The main contributions of this review are: (a) a comparison of eight advanced measurement devices for distribution networks, based on their technical characteristics, including reporting periods, measuring data, precision, and sample rate; (b) a review of the most recent applications of micro-Phasor Measurement Units, Smart Meters, and Power Quality Monitoring devices used in distribution systems, considering different novel methods applied for data analysis; and (c) an input-output table that relates measured quantities from micro-Phasor Measurement Units and Smart Meters needed for each specific application found in this extensive review. This paper aims to serve as an important guide for researches and engineers studying smart grids.

Estimação de Fontes Harmônicas em Sistemas de Potência

2020 ◽  
Vol 20 ◽  
pp. 11
Author(s):  
Arthur Mesquita ◽  
Marcelo Lima ◽  
Thales Wulfert ◽  
Igor Delgado ◽  
Leandro Manso ◽  
...  
Keyword(s):  
Phasor Measurement Units ◽  
Phasor Measurement ◽  
Measurement Units

Este artigo apresenta uma metodologia para a estimação de fontes de correntes harmônicas em sistemas elétricos de potência a partir do uso da Análise de Componentes Independentes (ICA). Através dos fasores de tensão harmônica complexa obtidos por PMUs (Phasor Measurement Units), os perfis harmônicos podem ser observados e considerados para a estimação das fontes. Um algoritmo baseado em um filtro de média móvel é responsável por dissociar as variações lentas e rápidas dos perfis harmônicos que são empregados à ICA para a estimação das fontes de corrente, rastreando-as ao longo do dia. Simulações computacionais no sistema IEEE 14 Barras são realizadas no intuito de validar a metodologia proposta.

Steady-state Security Assessment Based on K-Means Clustering Algorithm and Phasor Measurement Units

2020 ◽  
Vol 13 (4) ◽  
pp. 559-570
Author(s):  
Bassam A. Hemade ◽  
Hamed A. Ibrahim ◽  
Hossam E.A. Talaat
Keyword(s):  
Steady State ◽  
Clustering Algorithm ◽  
System Security ◽  
Phasor Measurement Units ◽  
Operating Conditions ◽  
Security Assessment ◽  
State Security ◽  
Phasor Measurement ◽  
Measurement Units ◽  
Silhouette Analysis

Background: The security assessment plays a crucial role in the operation of the modern interconnected power system network. Methods: Hence, this paper addresses the application of k-means clustering algorithm equipped with Principal Component Analysis (PCA) and silhouette analysis for the classification of system security states. The proposed technique works on three principal axes; the first stage involves contingency quantification based on developed insecurity indices, the second stage includes dataset preparation to enhance the overall performance of the proposed method using PCA and silhouette analysis, and finally the application of the clustering algorithm over data. Results: The proposed composite insecurity index uses available synchronized measurements from Phasor Measurement Units (PMUs) to assess the development of cascading outages. Considering different operational scenarios and multiple levels of contingencies (up to N-3), Fast Decoupled Power Flow (FDPF) have been used for contingency replications. The developed technique applied to IEEE 14-bus and 57-bus standard test system for steady-state security evaluation. Conclusion: The obtained results ensure the robustness and effectiveness of the established procedure in the assessment of the system security irrespective of the network size or operating conditions.

Sign in / Sign up

Export Citation Format

Share Document