Title :
Effect of load modeling on voltage stability
Author :
Zhu, S.Z. ; Zheng, J.H. ; Li, L. ; Shen, S.D. ; Luo, G.M.
Author_Institution :
Dept. of Electr. Eng., Tsinghua Univ., Beijing, China
Abstract :
This paper analyzes the analysis of the relation between the mechanism of voltage stability and load models. Two methods, IV (instrumental variable) and MSAR (minimium sum of the absolute residues), are used to identify load parameters of nonlinear and linear load model. ESA (eigenvalue-structure analysis) and two sensitivity methods based on ESA are presented to analyze the voltage stability: sensitivity on state variables or control variables and sensitivity of total generated reactive power. Examples are presented by simulation on the IEEE-14 bus system, which shows quantitative effects of different load models.
Keywords :
eigenvalues and eigenfunctions; load (electric); power system stability; reactive power; sensitivity analysis; IEEE-14 bus system; eigenvalue-structure analysis; instrumental variable method; linear load model; load modeling effect; load parameters identification; minimum sum of the absolute residues method; nonlinear load model; sensitivity methods; total generated reactive power; voltage stability; Instruments; Load modeling; Mathematical model; Power generation; Power system analysis computing; Power system dynamics; Power system modeling; Power system stability; Stability analysis; Voltage control;
Conference_Titel :
Power Engineering Society Summer Meeting, 2000. IEEE
Conference_Location :
Seattle, WA
Print_ISBN :
0-7803-6420-1
DOI :
10.1109/PESS.2000.867617
