PQBlog

Various and Sundry PQ Ruminations

Published by Bill William Howe, Sr. Program Manager, Power Quality, Electric Power Research Institute (EPRI), USA. Email: BHowe@epri.com Presented at 21st Annual PQSynergyTM International Conference & Exhibition, Sept 18th – 19th 2023. Mövenpick Hotel Sukhumvit 15 Bangkok, Thailand. Website: pqsynergy.com Author: Bill Howe, Sr. Program Manager, Power Quality, Electric Power Research Institute (EPRI), USA. Email: BHowe@epri.com Bill Howe is the Program Manager for PowerContinue reading “Various and Sundry PQ Ruminations”

An Introduction To Flow Batteries

Published by Kevin Clemens, EE Power – Technical Articles: An Introduction To Flow Batteries, February 06, 2023. Lithium-ion batteries get all the headlines, but flow batteries are a viable option, particularly for large-scale grid storage. Lithium-ion batteries have become the energy storage device of choice for cell phones, laptop computers, personal handheld devices, and electric vehiclesContinue reading “An Introduction To Flow Batteries”

A Home Energy Management Algorithm in Demand Response Events for Household Peak Load Reduction

Published by Maytham S. AHMED1,2 Azah MOHAMED1 , Raad Z. HOMOD3 , and Hussain SHAREEF4, Dept. of Electrical, Electronic & System Engineering, Faculty of Engineering & Built Environment, Universiti Kebangsaan Malaysia (1)General Directorate of Electrical Energy Production- Basrah, Ministry of electricity, Iraq (2)Dept. of Oil and Gas Engineering, Basrah University for Oil and Gas, 61004Continue reading “A Home Energy Management Algorithm in Demand Response Events for Household Peak Load Reduction”

Monitoring the Impact of Prosumer Micro Installations on the Electrical Parameters of Low-Voltage Network Systems

Published by Paweł PIJARSKI, Sylwester ADAMEK, Robert JĘDRYCHOWSKI, Klara SEREJA, Lublin University of Technology, Department of Electrical Networks and Security Abstract. An increasing number of connected prosumer installations, mainly photovoltaic ones, can cause problems with the operation of lowvoltage networks such as voltage fluctuations. These problems can be solved by an adequate control of theContinue reading “Monitoring the Impact of Prosumer Micro Installations on the Electrical Parameters of Low-Voltage Network Systems”

Control System for Distributed Generation in Low Voltage Network Systems

Published by Robert JĘDRYCHOWSKI, Klara SEREJA, Politechnika Lubelska, Katedra Sieci Elektrycznych i Zabezpieczeń, Poland Abstract. Implementation of prosumer energy generation to low-voltage network systems involves both benefits and technological problems concerning the grid operation. Electricity generation in LV network systems is of a distributed and quite unpredictable character. In those systems, solar PV installations, whoseContinue reading “Control System for Distributed Generation in Low Voltage Network Systems”

Proactive PQ: Enabling Analytics and Initial Successes

Published by Bill William Howe, Sr. Program Manager, Power Quality, Electric Power Research Institute (EPRI), USA. Email: BHowe@epri.com Presented at 21st Annual PQSynergyTM International Conference & Exhibition, Sept 18th – 19th 2023. Mövenpick Hotel Sukhumvit 15 Bangkok, Thailand. Website: pqsynergy.com Author: Bill Howe, Sr. Program Manager, Power Quality, Electric Power Research Institute (EPRI), USA. Email: BHowe@epri.comContinue reading “Proactive PQ: Enabling Analytics and Initial Successes”

Advantages of Interwinding Capacitive Test Setup in FRA Diagnostics of Transformer Windings

Published by Wojciech SZOKA, Szymon BANASZAK, Konstanty M. GAWRYLCZYKZachodniopomorski Uniwersytet Technologiczny w Szczecinie, Katedra Elektrotechnologii i Diagnostyki, Poland Abstract. Transformers are the main element of the power system. Their reliable operation affects the efficiency of energy supply. Each transformer should be subjected to periodic diagnostic tests. Frequency response analysis (FRA) is a non-destructive diagnostic methodContinue reading “Advantages of Interwinding Capacitive Test Setup in FRA Diagnostics of Transformer Windings”

Distance Protection Analysis Applied for Distribution System with Distributed Generation

Published by João T. L. S. CAMPOS1,2, Huilman S. SANCA1, Flavio B. COSTA3, Benemar A. de SOUZA1, Universidade Federal de Campina Grande (1), Universidade Potiguar (2), Universidade Federal do Rio Grande do Norte (3) Abstract. In power systems, the over-current protection scheme and, optionally with directional function, and distance function are the main protection used,Continue reading “Distance Protection Analysis Applied for Distribution System with Distributed Generation”

Autotransformers for Power Systems

Published by Waldemar ZIOMEK, PTI Manitoba Inc., Winnipeg, MB, Canada Abstract. When the primary and secondary voltages are obtained from the same winding, or from two windings which are galvanically connected, such a transformer is called an autotransformer. The paper will focus on fundamentals, design and applications of autotransformers of core-type design. The selected problemsContinue reading “Autotransformers for Power Systems”

Capabilities of Polish Power Plants – Advantages and Threats

Published by Paweł SZMITKOWSKI1, Sylwia ZAKRZEWSKA1, Agnieszka GIL2, Paweł ŚWIDERSKI1Siedlce University, Social Science and Security Institute (1), Siedlce University, Institute of Mathematics and Physics (2) Abstract. The Polish energy infrastructure is very diverse, both in terms of the distribution of power plants in particular regions of the country, as well as the fuels used inContinue reading “Capabilities of Polish Power Plants – Advantages and Threats”