Naslov
Voltage conditions estimation in frequency domain of power systems based on measuring power quality

Autori
Becirovic, Vedad ; Pavic, Ivica ; Curevac, Semra ; Hanjalic, Selma ; Nikolic, Bojan ; Dozic, Naida

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
5th International Youth Conference on Energy, Book of Abstracts / - , 2015, 9-9

ISBN
9781467371728

Skup
5th International Youth Conference on Energy

Mjesto i datum
Pisa, Italija, 27.05.2015. - 30.05.2015

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
High voltage line (HVL); Power Quality (PQ); Power Systems (PS); Voltage Harmonic Estimation (VHE)

Sažetak
Power quality (PQ) is becoming important factor in proper functioning and operating of power systems (PS). Continuous PQ monitoring represents basics for efficient exploitation of power systems. Systems for continuous PQ monitoring and their networking with central system are major investments. This paper lists conditions for modeling of certain PS elements and describes concept of power network modeling in PQ analysis. First part of the paper gives mathematical formulation of the problem ; second part describes high voltage transmission line in frequent domain using system of phase values, while the third part of the paper is an example in time domain modeled in EMTP-RV software package using system of phase values. Performance of power network in quasi-stationary state is analyzed and during the simulation five changes of voltage conditions occur as consequence of overloading. The PS is loaded with nonlinear loads generating high current and voltage harmonics. Voltage and current harmonic in the places of energy exchange are observed ; furthermore estimation of voltage harmonics in the places with no PQ monitors is conducted. Conclusions of the paper indicate possible usage of presented algorithm for real time PQ analysis and for post PQ analysis.

Izvorni jezik
Engleski

Znanstvena područja
Elektrotehnika

POVEZANOST RADA