Published by Electrotek Concepts, Inc., PQSoft Case Study: General Reference – Effects of Harmonics at Industrial Facilities, Document ID: PQS0409, Date: September 30, 2004. Abstract: Harmonic currents injected into the system by nonlinear loads, and the voltage distortion they create as they flow through system impedances, can reduce equipment operating reliability and service life. Potential problemsContinue reading “General Reference – Effects of Harmonics at Industrial Facilities”
Category Archives: Power Quality
Impact of Renewables on Relay Protection Operation
Published by Mikhail ANDREEV, Aleksey SUVOROV, Alisher ASKAROV, Anton KIEVETS, Vladimir RUDNIK, Tomsk Polytechnic University, Russia Abstract. The current trend in the development of electric power systems is the integration of renewable energy sources in the form of distributed generation. It was revealed that one of the main reasons inhibiting this process is a changeContinue reading “Impact of Renewables on Relay Protection Operation”
Study on a New Method for Overvoltage Measurement using CVT
Published by Si WENRONG, Jin HENG, Huang HUA, Fu CHENZHAO, East China Electric Power Test & Research Institute Company Limited, Shanghai, China Abstract. This paper introduces a new method for overvoltage measurements in 500kV power system using capacitor voltage transformer (CVT). It is realized with a voltage sensor installed within CVT as the low-voltage capacitorContinue reading “Study on a New Method for Overvoltage Measurement using CVT”
Power Network Parameters Standards with Implements IEEE-1459 Power Definitions
Published by Andrzej OLENCKI1, Daniel BELICA2, Jarosław MARKIEWICZ3, Piotr MRÓZ4 ,Calmet Spółka z o.o. Zielona Góra (1,2,3), Uniwersytet Zielonogórski (4) Abstract. The development of Polish portable standards of power network parameters and their concepts are presented, taking into account the requirements of the IEEE-1459 standard in the scope of the separation of the fundamental frequencyContinue reading “Power Network Parameters Standards with Implements IEEE-1459 Power Definitions”
Selected Methods for Improving Power Reliability
Published by Krzysztof PRZYSTUPA1, Lublin University of Technology (1) Abstract. The article discusses the problem of the widespread use of devices that require increased quality electric power supply. An example of a practical division of electricity receipts into several categories is shown. Methods of increasing the reliability of power supply are described and the mostContinue reading “Selected Methods for Improving Power Reliability”
Electrical Vehicle Impact on Distribution Network Power Quality
Published by Sampsa KUPARI, Metropolia, Helsinki University of Applied Sciences Abstract: The electrical vehicle form a huge load (and occasionally a generator as well) that is not resistive but possibly of nonlinear character. This may have an effect on distribution network power quality and possibly disturb seriously other consumers. If this is not taken careContinue reading “Electrical Vehicle Impact on Distribution Network Power Quality”
Power Factor Correction as the Right Step Towards a Safer Environment
Published by Alexander ABRAMOVITZ1, Volodymyr YASKIV2 , Keyue SMEDLEY3, Sami Shamoon College of Engineering (1), Ternopil Ivan Puluj National Technical University (2), University of California (3) Abstract. Generation and transfer of electrical energy can severely degrade the environment. The necessity of joint research in the field of high-frequency power converters with power factor correction toContinue reading “Power Factor Correction as the Right Step Towards a Safer Environment”
Harmonics Generation, Propagation and Purging Techniques in Non-Linear Loads
Published by Hadeed Ahmed Sher, Khaled E. Addoweesh and Yasin Khan 1. Introduction Industrial revolution has transformed the whole life with advanced technological improvements. The major contribution in the industrial revolution is due to the availability of electrical power that is distributed through electrical utilities around the world. The concept of power quality in thisContinue reading “Harmonics Generation, Propagation and Purging Techniques in Non-Linear Loads”
Power Quality Analysis of Grid-Connected Photovoltaic Systems in Distribution Networks
Published by Masoud FARHOODNEA1, Azah MOHAMED1, Hussain SHAREEF1, Hadi ZAYANDEHROODI1, University Kebangsaan Malaysia (UKM) (1) Abstract. This paper presents a dynamic PQ analysis on the effects of high-penetrated grid-connected photovoltaic (PV) systems in a distribution system under different weather conditions. To track practical considerations, all information on PV units and weather conditions given in thisContinue reading “Power Quality Analysis of Grid-Connected Photovoltaic Systems in Distribution Networks”
Towards Knowledge Engineering Based Guidance for Electrical Engineers
Published by Muhammad MANSOOR, Norman MARIUN, Napsiah ISMAIL, Noor Izzri ABDULWAHAB,Faculty of Engineering, University Putra Malaysia (UPM) Abstract. This paper proposes a concept of knowledge engineering based innovative approach for seeking solutions related to electrical engineering systems. The knowledge base approach is discussed for its effectiveness at preliminary stages of solution hunting and solution design,Continue reading “Towards Knowledge Engineering Based Guidance for Electrical Engineers”
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