Power Quality Community of Practice

Leonardo ENERGY power quality was born from LPQI initiative and still continue to deliver information, education materials and organise online events to help professionals  whose industries are at risk.
 

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Power quality critical sectors

By Isabelle Heriakian / Published on Mon, 2009-02-23 15:26

European power quality survey results offers an overview of Power Quality issues in each specific industry as well as PQ TechWatch with a new serie of publications.

If you want to receive update, you can subscribe to our power quality economics community of practice.

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Grid modelling for wind farm harmonic voltages evaluation

By Isabelle Heriakian / Published on Thu, 2010-03-11 16:08

A prospective wind farm consisting of 21 turbines with 2 MW double-fed induction generators is planned to be connected to a 110 kV substation in distribution system.

In this case study, different network configurations are modelled.

The influence of the accuracy of grid modelling on grid harmonic impedance characteristic at a particular point is analysed, and a comparison of the results is done for the different network configurations.

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Power Quality in a Customers Supplying Low-Voltage Line

By Isabelle Heriakian / Published on Tue, 2010-03-09 16:20

This case study is an assessment of electric power quality in a low voltage supply network in rural environment, based on measurements.

The subject of measurements was a low voltage line in which large disturbances occurred in the supply voltage, being the cause of customers' complaints. A modernisation of the installation was done; additional insulated cable was added and then the MV/LV transformer was replaced with a new one of larger rated power.

The conclusion from the final measurements is to consider other mitigation solutions.

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Voltage fluctuations in a low voltage network

By Isabelle Heriakian / Published on Thu, 2010-03-04 17:44

This case study presents the control of quality parameters of electric power supplied from a low-voltage network to household consumers and public utility buildings.

The measures aimed at the power quality improvement, taken by the electric power supplier, are presented.

A comparison is done before and after replacement of a transformer to assess whether or not the choice was right.

 

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Leonardo ENERGY Academy graduates

By Roman Targosz / Published on Thu, 2010-03-04 13:41

PQ01: Introduction to Power Quality. Voltage Dips and Short Interruptions - February 2010

  • Izaskun Azcarate
  • Iosif Borcsa
  • Bert van Bruchem
  • Alejandro Castellanos
  • Kok Wai Chan
  • Andre Domingues Rocha de Oliveira
  • Gabriel Ricardo Ferreira Queiroga Mafra
  • John Han
  • Edwar Hernandez
  • Danijel Hodzic
  • Sjur Kilde
  • Mike Lankford
  • Piotr Łaszczych
  • Chris Nerli

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Electricity Markets and Quality of Supply Regulation

By Fernando Nuno / Published on Thu, 2010-03-04 12:54

Following the training course on electricity markets regulation, a set of support papers is being delivered to complete the didactic set.

This paper explains the various concepts about the regulationof the power quality: quality regulation, commercial quality, reliability, performance publication, standards and quality incentives schemes.

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