Sensitivity Analysis of the Brazilian Methodology of Calculation of Technical Losses in the Electric Energy Distribution System

2019 ◽  
Author(s):  
Criciele Castro Martins ◽  
Railson Severiano de Souza ◽  
Mauricio Sperandio
Keyword(s):  
Sensitivity Analysis ◽  
Energy Distribution ◽  
Distribution System ◽  
Electric Energy

scholarly journals Performance of single wire earth return transformers with amorphous alloy core in a rural electric energy distribution system

2012 ◽  
Vol 15 (5) ◽  
pp. 801-804
Author(s):  
Benedito Antonio Luciano ◽  
Renato Cucato Inácio ◽  
Pablo de Paula e Silva ◽  
Francisco das Chagas Fernandes Guerra ◽  
Raimundo Carlos Silvério Freire
Keyword(s):  
Amorphous Alloy ◽  
Energy Distribution ◽  
Distribution System ◽  
Electric Energy ◽  
Single Wire

scholarly journals Analysis of Various Options for Balancing Power Systems’ Peak Load

Energies ◽  
2021 ◽  
Vol 14 (2) ◽  
pp. 513
Author(s):  
Henryk Majchrzak ◽  
Michał Kozioł
Keyword(s):  
Power Systems ◽  
Distribution System ◽  
Peak Load ◽  
Electric Energy ◽  
End Users ◽  
Energy Market ◽  
Market Participants ◽  
Continuous Energy ◽  
Storage Solutions ◽  
Transmission And Distribution

The balancing of the power of the Polish Power System (KSE) is a key element in ensuring the safety of electric energy supplies to end users. This article presents an analysis of the power demand in power systems (PS), with emphasis on the typical power variability both in subsequent hours of the day and on particular days and in particular months each year. The methodology for calculating the costs of electric energy undelivered to the end users and the amount of these costs for KSE is presented. Different possibilities have been analyzed for balancing power systems’ peak load and assumptions have been formulated for calculating the amount of the related costs. On this basis, a comparative analysis has been made of the possibility to balance peak load using operators’ system services, trans-border connections, and various energy storage solutions. On the basis of the obtained results, optimal tools have been proposed for market-based influence from transmission and distribution system operators on energy market participants’ behaviors in order to ensure the power systems’ operating safety and continuous energy deliveries to end users.

Implementation of medium voltage remote controlled switches to improve quality performance indexes – a case study

2020 ◽  
Vol 21 (4) ◽  
Author(s):  
Julio Cezar Santos ◽  
Wagner Santos ◽  
Guilherme Cestaro ◽  
Marcio Zamboti Fortes ◽  
Henrique Henriques
Keyword(s):  
Energy Distribution ◽  
Electric Energy ◽  
Regulatory Agencies ◽  
Quality Performance ◽  
Medium Voltage ◽  
Fast Detection ◽  
Performance Indexes ◽  
Short Time ◽  
Operation Center

AbstractThe growing demand for quality in the Energy Distribution Service, both by consumers and by regulatory agencies, obliges most distribution utilities to apply technologies that can be easily implemented and produce results in a short term horizon. The telecontrol technology is an essential tool every time it is necessary to fast restore the energy supply. This technology, which is completely supervised and controlled by the system operation center, allows the fast detection of a fault at a distance and switch an equipment without the aid of the operating crew, thus reducing the time that the power supply is unavailable. The present paper describes a Telecontrol Project, incorporated in an electric energy distribution utility in Brazil and compares the results in quality improvement with others usual investment actions, such as operating and maintenance procedures, laterals protection and network reinforcement. This paper shows, analyzing the results, that to improve the reliability indexes in a short time, when the company’s economic recovery is more important, the application of remotely controlled switch is more effective.

Optimal Capacitors Placement of Distribution Systems Using 2nd Order Power Loss Sensitivity Analysis and Hierarchical Clustering

2014 ◽  
Vol 986-987 ◽  
pp. 377-382 ◽  
Author(s):  
Hui Min Gao ◽  
Jian Min Zhang ◽  
Chen Xi Wu
Keyword(s):  
Sensitivity Analysis ◽  
Hierarchical Clustering ◽  
Distribution System ◽  
Power Flow ◽  
Distribution Systems ◽  
Reactive Power ◽  
Digital Simulation ◽  
Second Order ◽  
First Order ◽  
The Impact

Heuristic methods by first order sensitivity analysis are often used to determine location of capacitors of distribution power system. The selected nodes by first order sensitivity analysis often have virtual high by first order sensitivities, which could not obtain the optimal results. This paper presents an effective method to optimally determine the location and capacities of capacitors of distribution systems, based on an innovative approach by the second order sensitivity analysis and hierarchical clustering. The approach determines the location by the second order sensitivity analysis. Comparing with the traditional method, the new method considers the nonlinear factor of power flow equation and the impact of the latter selected compensation nodes on the previously selected compensation location. This method is tested on a 28-bus distribution system. Digital simulation results show that the reactive power optimization plan with the proposed method is more economic while maintaining the same level of effectiveness.

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