PQBlog

Hybrid Energy Storage System in Hybrid Vehicles: Design of Energy Management Strategy and Comparative Analysis

Published by Piotr WOŹNIAK, Politechnika Łódzka, Instytut Systemów Inżynierii Elektrycznej Abstract. This article presents simulation tests showing the benefits of using an additional energy storage device in the form of a supercapacitor in a hybrid car. An original power flow control system was proposed. The main emphasis was placed on determining the driving characteristics, emissionsContinue reading “Hybrid Energy Storage System in Hybrid Vehicles: Design of Energy Management Strategy and Comparative Analysis”

Memristive Devices In Three-Phase Systems

Published by Piotr ZEGARMISTRZ, Bartłomiej GARDA, AGH University of Science and Technology Abstract. The aim of the research presented in a paper was to provide trustworthy simulation results for symmetrical three-phase systems with memristive load. The memristors in the system are combined with linear resistors in order to limit the current in the element. LinearContinue reading “Memristive Devices In Three-Phase Systems”

Power Exchange in Smart Grids Integrating Renewable Energy

Published by MEKKAOUI Ali1, LAOUER Mohammed2, YOUNES Mimoun1, University of Sidi Belabes, Algeria (1), University Center of Naama, Algeria (2) Abstract. Smart grids are essentially characterized by reliability and energy efficiency so we can optimize the performance of the electrical system to ensure safe and reliable operation. This paper discusses smart grids in a futureContinue reading “Power Exchange in Smart Grids Integrating Renewable Energy”

Comparative Analysis of the Indicators that Concern Power Supply Interruptions for Electricity Consumers for the Selected Distribution System

Published by Małgorzata ŁATKA, Marek NOWAK, Rzeszow University of Technology Abstract. The article presents the results of a comparative analysis of the basic indicators characterizing the interruptions in the supply of electricity. On the basis of generally available reports of selected DSOs, a list of selected indicators was prepared over the years. A comparison ofContinue reading “Comparative Analysis of the Indicators that Concern Power Supply Interruptions for Electricity Consumers for the Selected Distribution System”

Incheon Airport Maglev Line

Published by Doh-Young PARK1, Jacek F. GIERAS2,3Korea Institute of Machinery and Materials, Daejeon, Korea (1), UTP University of Science and Technology, Bydgoszcz, Poland (2), Korea Electrotechnology Research Institute, Changwon, Korea (3), Abstract. The paper presents the Incheon Airport Maglev Line (IAML) in South Korea connecting Incheon Airport with Yeongjong Island. The paper focuses on constructionContinue reading “Incheon Airport Maglev Line”

Converter-Fed Electric Vehicle (Car) Drives – A Critical Review

Published by Konrad DĄBAŁA1, Marian P. KAZMIERKOWSKI1,2,The Łukasiewicz Research Network – Electrotechnical Institute, Warsaw (1)Warsaw University of Technology, Faculty Electrical Engineering (2) Abstract In this paper the basic requirements and current developments of converter-fed drives for electric vehicles, particularly for electric cars, are reviewed and compared. The basic parts of the powertrain have been presentedContinue reading “Converter-Fed Electric Vehicle (Car) Drives – A Critical Review”

Improvement of Voltage Stability in the HV Distribution Line using an Active Power Filter

Published by Julian WOSIK1, Marcin HABRYCH2, Bogdan MIEDZIŃSKI2, Grzegorz DEBITA3, Andrzej FIRLIT4, Institute of Innovative Technologies EMAG (1), Wroclaw University of Science and Technology (2), General Tadeusz Kosciuszko Military University of Land Forces (3), AGH University of Science and Technology (4) Abstract. The article explains the reason of a voltage instability in distribution networks basingContinue reading “Improvement of Voltage Stability in the HV Distribution Line using an Active Power Filter”

Understanding Telephone Interference Factor

Published by David Horning, March 2013. Power Monitors, Inc., White Paper: Understanding Telephone Interference Factor Abstract. Harmonic distortion that is produced from power conversion systems can cause interference on analog telephone lines. The degree of telephone interference can be expressed in terms of the Telephone Interference Factor (TIF). This white paper will discuss how interference isContinue reading “Understanding Telephone Interference Factor”

Multi-Servers System with Firebird Database for Automatic Reactive Power Compensation

Published by Marian HYLA, Silesian University of Technology, Department of Power Electronics, Electrical Drives and Robotics Abstract. The paper presents the concept, implementation and operational effects of the multi-servers automatic reactive power compensation system in 6 kV industry electrical power grid. As controlled reactive power compensators were used synchronous motors, capacitors’ banks and passive filtersContinue reading “Multi-Servers System with Firebird Database for Automatic Reactive Power Compensation”

Obtaining Feasibility of Power Flows in the Deregulated Electricity Market Environment

Published by Mariusz DRABECKI, Eugeniusz TOCZYŁOWSKI,Warsaw University of Technology, Institute of Control and Computation Engineering Abstract. In this paper we analyse a power dispatch method for obtaining feasible power flows, both active and reactive power, in terms of satisfying the transmission, voltage level and voltage angles’ constraints, under assumption that supply of electric power isContinue reading “Obtaining Feasibility of Power Flows in the Deregulated Electricity Market Environment”