In-Depth Study on Synthesis Load Modeling

Qi Wang, Yong Tang, Bing Zhao

Power System Department, China Electric Power Research Institute, Beijing, China.

DOI: 10.4236/epe.2013.54B096                

Abstract

Detailed procedures for the modeling of synthesis load models (SLM) of actual power network are presented, then the classification indices based on 1oad characteristics and the principle of load classification are expounded. Based on the results of general investigation of 220 kV and 330kV substations in China’s power grid, the load characteristics are classified, and detailed load characteristic investigation of selected different kinds of typical substations are carried out. By use of statistical synthesis, the SLM for typical substations, in which the distribution networks are taken into account, are built; and the modeling results are disseminated and applied to whole Chinese power grid. Besides, the load model parameters are evaluated and verified via post-disturbance simulation method. The effectiveness of the built SLM is validated by the fitting of some disturbance incidents.

Keywords

Chinese Power Grid; Load Characteristics; Load Composition; Load Modeling; Synthesis Load Model (SLM)

Conflicts of Interest

The authors declare no conflicts of interest.

References

[1]	IEEE Task Force on Load Representation for Dynamic Performance, Load Representation for Dynamic Performance Analysis, IEEE Transactions on Power Systems, Vol. 8, No. 2, pp. 472-482. doi:10.1109/59.260837
[2]	IEEE, Computer Analysis of Power Systems Working Group of the Computer and Analytical Methods Subcommittee-Power System Engineering Committee. System Load Dynamics-Simulation Effects and Determination of load Constants. IEEE Trans, Vol. PAS-92, 1973, pp. 600-609.
[3]	Y. Sekine and H. Ohtsuki, “Cascaded Voltage Collapse,” IEEE Transactions on Power Systems, Vol. 5, No. 1, 1990, pp. 250-256. doi:10.1109/59.49113
[4]	D. Popovic, I. A. Hiskens and D. J. Hill, “Investigations of Load-Tap Change Interaction,” Electrical Power & Energy Systems, Vol. 18, No. 2, 1996, pp. 81-97. doi:10.1016/0142-0615(94)00003-4
[5]	M. K. Pal, “Assessment of Corrective Measures for Voltage Stability Considering Loads Dynamics,” Electrical Power & Energy Systems, Vol.17, No. 5, 1995, pp. 325-334. doi:10.1016/0142-0615(95)00049-4
[6]	CIGRE Task Force 38.02.05. Load Modeling and Dynamics. Electra, May 1990.
[7]	A. Kurita and T. Sakurai, “The Power System Failure on July 23, 1987 in Tokyo,” 27th IEEE Conference on Decision and Control, Vol. 3, 1988, pp. 2093-2097. doi:10.1109/CDC.1988.194703
[8]	D. N. Kosterev, C. W. Tayor and Mittelstadt, “Model Validation for the August 10, 1996 WSCC System Outage,” IEEE Trans. on Power Systems, Vol. 14, No. 3, 1999, pp. 967-979．doi:10.1109/59.780909
[9]	L. Pereira, D. Kosterev, P. Mackin, et al., “An Interim Dynamic Induction Motor Model for Stability Studies in the WSCC,” IEEE Transactions on Power Systems， Vol. 17, No. 4, 2002, pp. 1108-1115． doi:10.1109/TPWRS.2002.804960
[10]	S. Z. Zhu, J. H. Zheng, L. Li, et al., “Effect of Load Modeling on Voltage Stability,” IEEE PES Summer Meeting, 2000．
[11]	General Electric Company, “Load Modeling for Power Flow and Transient Stability Computer Studies,” EPRI Report EL-5003, Project 849-7, Vol. 1-2, 1987.
[12]	B. Zhao and Y. Tang, “Dynamic Characteristics an Analysis of Induction Motor Loads,” Proceedings of the CSEE, Vol. 29, No. 7, 2009, pp. 71-77．
[13]	B. Zhao, Y. Tang and W. C. Zhang, “Study on Single-unit Equivalent Algorithm of Induction Motor Group,” Proceedings of the CSEE, Vol. 29, No. 19, 2009, pp. 43-49．