Title :
Elimination of numerical oscillation of dynamic phasor in HVDC system simulation
Author :
Hong, S.N. ; Liu, C.R. ; Bo, Z.Q. ; Klimek, A.
Author_Institution :
Dept. of Electr. Eng., North China Electr. Power Univ., Beijing, China
Abstract :
The conventional dynamic phasor models of HVDC systems based on Damping Trapezoidal Integration technique are liable to numerical oscillations occurred when the network architecture changes. In order to solve this problem, this paper firstly conducts theoretical analysis on the causes of numerical oscillations resulted from the use of the conventional dynamic phasor models of HVDC systems. Secondly, an advanced dynamic phasor technique using modified Critical Damping Adjustment to eliminate the oscillations is presented. Then a HVDC model based on the advanced dynamic phasor measurement is established. Simulation results show that this model is able to not only effectively eliminate numerical oscillations, but also correctly represent the dynamic characteristics of the HVDC systems.
Keywords :
Fourier transforms; HVDC power convertors; numerical stability; power system simulation; Damping Trapezoidal Integration technique; Fourier transform; HVDC system simulation; dynamic phasor; numerical oscillation; numerical stability; power system modelling; power system simulation; transient analysis; Admittance; Damping; Electronic mail; HVDC transmission; Hybrid power systems; Large-scale systems; Power system dynamics; Power system modeling; Power system simulation; Voltage; Dynamic response; Fourier transforms; HVDC transmission; Numerical stability; Power system modeling; Power system simulation; Transient analysis;
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.2009.5275822
