Title :
Determination of power system response during small load fluctuations
Author :
Liang, Wuxing ; Littler, Tim
Author_Institution :
Sch. of Electron., Electr. Eng. & Comput. Sci., Queen´´s Univ. Belfast, Belfast, UK
Abstract :
This paper proposes a calculation method to determine power system response during small load perturbations or minor disturbances. The method establishes the initial value of active power transient using traditional reduction technique on admittance matrix, which incorporates voltage variations in the determination. The method examines active power distribution among generators when several loads simultaneously change, and verifies that the superposition principle is applicable for this scenario. The theoretical derivation provided in the paper is validated by numerical simulations using a 3-generator 9-bus benchmark model. The results indicate that the inclusion of voltage variation renders an independent and precise measure of active power response during transient conditions.
Keywords :
electric generators; power system faults; power system transients; active power distribution; active power system response; active power transient; admittance matrix reduction technique; generator; load perturbation; power system disturbance; small load fluctuation; superposition principle; voltage variation; Fluctuations; Power distribution; Power generation; Power system modeling; Power system simulation; Power system stability; Power system transients; Power systems; Reactive power; Voltage; Active power distribution; admittance matrix; load fluctuation; power system response; superposition principle; voltage variation;
Conference_Titel :
Power & Energy Society General Meeting, 2009. PES '09. IEEE
Conference_Location :
Calgary, AB
Print_ISBN :
978-1-4244-4241-6
DOI :
10.1109/PES.2009.5275946