Application of Load Compensation in Voltage Controllers of Large Generators in the Polish Power Grid

Sobczak, Bogdan; Rink, Robert; Głaz, Marek

doi:10.12736/issn.2300-3022.2014112

Cited by 2 publications

(2 citation statements)

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“…Load compensation carried by the automatic voltage regulator has been used for many years in the Polish Power System [8], [9], [15]. Compensation, using generator current phasor measurement and a certain adopted impedance, allows replacing the voltage measured at the generator terminals with a synthesized voltage in a selected fictional point, shifted toward the generator's equivalent electromotive force, or towards the grid as follows…”

Section: A Theorymentioning

confidence: 99%

“…The analysis of publications which describes such experiments [1]- [14] gives a conclusion that much attention is paid to the issues of protection relay settings, coordination and communication of power system dispatchers and turbine governor operation algorithms. Unfortunately, there is not much information about the operation of automatic voltage regulator (AVR) of synchronous generator during post black-out creation of start-up path [8], [9].…”

Section: Introductionmentioning

confidence: 99%

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A New Method of the Load Compensation Use during Creation of Post Blackout Start-up Path in Power System

Małkowski¹,

Łosiński²,

Czapp³

et al. 2016

ElAEE

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Process of power system restoration, especially after blackout, is very complicated logistically and technically. In order to restore thermal power plant in power system, as a source of power hydro power plant is commonly used. The distance between these power plants may be relatively higheven over 500 km. High voltage overhead transmission lines to connect the power plants during the creation of post blackout start-up path are switched on under no load condition. Relatively high value of natural reactive power of these lines makes that value of voltage at the end of the switched line may reach an unacceptable high level, in spite of application of typical algorithm of automatic voltage regulator of synchronous generator. In the paper a new method of effective use of load compensation during creation of post blackout start-up path is proposed. Theoretical assumptions and simulation results of an investigation are presented. An experiment performed in the Polish Power System is also described. This experiment proved that the method proposed by the authors is advisable. The method may be utilized by power system operators for power system restoration process in emergency conditions.

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Section: A Theorymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%