Distribution Feeder Resonance and Harmonic Filter Evaluation

Published by Electrotek Concepts, Inc., PQSoft Case Study: Distribution Feeder Resonance and Harmonic Filter Evaluation, Document ID: PQS1006, Date: March 15, 2010. Abstract: Utility power system harmonic problems can often be solved using a comprehensive approach including site surveys, harmonic measurements, and computer simulations. This case study presents the results for a utility distribution feeder resonanceContinue reading “Distribution Feeder Resonance and Harmonic Filter Evaluation”

Evaluation of Harmonic Impacts from Compact Fluorescent Lights On Distribution Systems

Published by Electrotek Concepts, Inc., PQSoft Case Study: Evaluation of Harmonic Impacts from Compact Fluorescent Lights On Distribution Systems, Document ID: PQS0322, Date: April 16, 2003. Abstract: This case study presents the results of a research investigation into the impact of compact fluorescent lights (CFLs) on an existing distribution system. The analysis uses a combination ofContinue reading “Evaluation of Harmonic Impacts from Compact Fluorescent Lights On Distribution Systems”

Research on Design and Control of Microgrid System

Published by Yanbo CHE, Jian CHEN,School of Electrical Engineering & Automation, Tianjin University, Tianjin China. Abstract. Microgrid system has received more and more attention internationally in recent years. As the most effective form of distributed generations, microgrid system has also found wide applications in many areas. In this paper, the optimal configuration issue of microgridContinue reading “Research on Design and Control of Microgrid System”

Consumers Protection and Monitoring with Microcontroller Based Device for Low-Voltage Distribution Systems

Published by Petre Lucian OGRUTAN1, Lia Elena ACIU1, Dan LOZNEANU1, Ioan ROSCA2,Transilvania University of Brasov, Romania (1), Transilvania Sud Electricity Distribution (2) Abstract. Protection devices against over-voltage and over-currents for low voltage systems are equipped with varistors and gas-discharge tubes around a fuse, having a disconnection time about 200ms. This paper proposes an intelligent protectionContinue reading “Consumers Protection and Monitoring with Microcontroller Based Device for Low-Voltage Distribution Systems”

The Influence of Earth Thermal Conductivity on Temperature Profile of 110 kV Electric Power Cable System

Published by Janusz TYKOCKI, The State College of Computer Science and Business Administration in Lomza Abstract. The paper presents the conductivity of the ground effect on the distribution of temperature field in three-phase high-voltage cables, 64/110 kV, depending on the depth of their arrangement in the ground. The simulation uses the finite element method FEM.Continue reading “The Influence of Earth Thermal Conductivity on Temperature Profile of 110 kV Electric Power Cable System”

Roof Integrated Grid Connected PV Systems Capacity in Gran Canaria Island

Published by Norberto ANGULO1, Antonio PULIDO1, Felipe DÍAZ1, Fabián DÉNIZ1, Expedito SÁNCHEZ1, Rafael SÁNCHEZ2, Universidad de Las Palmas de Gran Canaria (1), Mancomunidad del Sureste de Gran Canaria (2) Abstract. The main aim of this paper is to determine the photovoltaic capacity of Gran Canaria Island, part of the Canary Islands, an archipelago with highContinue reading “Roof Integrated Grid Connected PV Systems Capacity in Gran Canaria Island”

Diagram of Daily Consumption of Electricity, Houses Appliances, Distribution them into Categories by Importance of Electricity Supply

Published by Petr ZÁVADA1, Karel SOKANSKÝ1, VSB – Technical University of Ostrava (1) Abstract. Today, the development of power generation from renewable sources is an effort to maximize the share of total energy consumption. Big source of energy in solar and wind power plants are mostly connected to the distribution network and supply the energyContinue reading “Diagram of Daily Consumption of Electricity, Houses Appliances, Distribution them into Categories by Importance of Electricity Supply”

Overhead Line Fault Section Positioning System Based on Wireless Sensor Network

Published by Ai-hua Dong, Xinlin Geng, Yi Yang, Ying Su, Mengyao Li, Henan Polytechnic University Abstract. This paper introduces overhead line fault detection and location system as the core of industrial control computer. The combination of software and hardware, the methods of current rate of change and zero current detection are used, and so theContinue reading “Overhead Line Fault Section Positioning System Based on Wireless Sensor Network”

Disturbances in Industrial Power Networks

Published by Marek KAŁUSKI, Marek MICHALAK, Mirosław PIETRANIK, Karolina SKRZYPEK, Monika SZAFRAŃSKA, National Institute of Telecommunications Abstract. The paper presents some preliminary results of the in-situ measurements of disturbances that were observed in mine underground power network. The purpose of the measurements was to identify potential interfering signals that may occur in such and similarContinue reading “Disturbances in Industrial Power Networks”

Techno-Economic Analysis of Off-Grid Renewable Energy Power Station: A Case Study

Published by Liu Liqun, Liu Chunxia, Taiyuan University of Science & Technology Abstract. This paper gives the techno-economic analysis of a wind-PV-diesel system with storage battery backup for an off-grid power station specially located in Dongwangsha, studying data from a particular site in littoral China. The simulation and optimization results indicated the most optimized sizingContinue reading “Techno-Economic Analysis of Off-Grid Renewable Energy Power Station: A Case Study”