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Full-Text Articles in Physical Sciences and Mathematics
Flicker Transfer In Radial Power Systems, Sankika Tennakoon, Lakshal Perera, D A. Robinson, Sarath Perera
Flicker Transfer In Radial Power Systems, Sankika Tennakoon, Lakshal Perera, D A. Robinson, Sarath Perera
Associate Professor Sarath Perera
Loads which exhibit continuous and rapid variations in their current can cause voltage fluctuations that are often referred to as flicker. One good example for such loads is arc furnaces which are usually fed by dedicated feeders from the high voltage busbars in transmission systems. The flicker generated from such loads will propagate to the upstream HV point of common coupling (PCC), and from there to the downstream through the transmission and sub transmission systems. This paper demonstrates how the generated flicker is propagated from the HV PCC to the downstream in radial networks exhibiting different levels of attenuation depending …
Response Of Mains Connected Induction Motors To Low Frequency Voltage Fluctuations From A Flicker Perspective, Sankika Tennakoon, Sarath Perera, D A. Robinson
Response Of Mains Connected Induction Motors To Low Frequency Voltage Fluctuations From A Flicker Perspective, Sankika Tennakoon, Sarath Perera, D A. Robinson
Associate Professor Sarath Perera
In radial power systems flicker transfer from a higher voltage level (upstream) to a lower voltage level (downstream) is seen to be significantly affected by the downstream load composition. Industrial load bases containing mains connected induction motors are known to be effective in the flicker attenuation process compared to residential load bases containing passive loads. For better understanding of the flicker attenuation influenced by induction motors their dynamic behaviour has to be closely investigated under fluctuating supply conditions. This paper presents the methodology and results of investigations undertaken to examine the response of an induction motor to small perturbations in …
Review Of Flicker Objectives For Lv, Mv And Hv Systems, Detmar Arlt, Herivelto Bronzeado, Rong Cai, Emmanuel De Jaeger, Zia Emin, David Guillot, Mark Halpin, Naoki Kobayashi, Matti Lahtinen, Igor Papic, Francisco Pazos, Sarath Perera, Jeremy Price, Herwig Renner, Xavier Yang, Francisc Zavoda
Review Of Flicker Objectives For Lv, Mv And Hv Systems, Detmar Arlt, Herivelto Bronzeado, Rong Cai, Emmanuel De Jaeger, Zia Emin, David Guillot, Mark Halpin, Naoki Kobayashi, Matti Lahtinen, Igor Papic, Francisco Pazos, Sarath Perera, Jeremy Price, Herwig Renner, Xavier Yang, Francisc Zavoda
Associate Professor Sarath Perera
No abstract provided.
Harmonics And Flicker Levels At A Sub-Transmission Substation: A Measurement Experience, D Robinson, Victor Gosbell, Sarath Perera, N Browne
Harmonics And Flicker Levels At A Sub-Transmission Substation: A Measurement Experience, D Robinson, Victor Gosbell, Sarath Perera, N Browne
Associate Professor Sarath Perera
Proactive monitoring of power quality disturbance levels by electricity utilities is vital to allow cost-effective mitigation when disturbances are perceived to be approaching planning levels and also to protect the security of customer installations. Ensuring that disturbance levels are within limits at the HV and EHV points of supply of the network is essential if satisfactory levels downstream are to be maintained. This paper presents discussion on a power quality monitoring campaign performed at the sub-transmission point of supply of a distribution network with the objective of benchmarking background disturbance levels prior to modifications to the substation and to ensure …