Title :
Flicker source identification in meshed high voltage grids
Author_Institution :
Inst. for Electr. Power Syst., Graz Univ. of Technol., Graz, Austria
Abstract :
This paper describes a method to calculate the individual flicker emission of specific disturbers by means of simultaneous flicker level measurements in different bus bars of a meshed grid. The method is based on former investigations regarding the flicker propagation in meshed networks. With adequate flicker level measurements, the cubic flicker summation law and the specific flicker transfer factors which result out of the grid´s impedance matrix, a detailed analysis of the flicker emission situation in a grid can be done. A case study with electric arc furnaces in a 110 kV grid is presented as application example, including a sensitivity analysis.
Keywords :
arc furnaces; busbars; impedance matrix; power grids; power supply quality; sensitivity analysis; busbars; cubic flicker summation law; electric arc furnaces; flicker emission; flicker propagation; flicker source identification; grid impedance matrix; meshed high voltage grid network; power quality; sensitivity analysis; simultaneous flicker level measurements; specific flicker transfer factors; voltage 110 kV; Furnaces; Level measurement; Power measurement; Power quality; Synchronization; Topology; Voltage fluctuations; Power quality; flicker emission; flicker transfer factor; meshed grid;
Conference_Titel :
Electric Power Quality and Supply Reliability Conference (PQ), 2012
Conference_Location :
Tartu
Print_ISBN :
978-1-4673-1980-5
Electronic_ISBN :
978-1-4673-1978-2
DOI :
10.1109/PQ.2012.6256213
