Improved Voltage Collapse Proximity index for prediction of Voltage instability in distribution networks
محورهای موضوعی : Electrical Engineering
Mohammad Kazeminejad
1
,
Alireza Sina
2
1 - Department of Electrical Engineering, Aliabad Katoul Branch, Islamic Azad University, Aliabad Katoul, Iran
2 - Faculty members of ACECR, Ahvaz, Iran.
کلید واژه: Voltage Stability, Line Load-ability, Equivalent Circuit, Load Margin,
چکیده مقاله :
One of the main criteria for voltage stability limit in modern power systems is load-ability limit (LL) real-time monitoring of system status and voltage collapse prediction based on the basic concept of maximum power transfer through a line; reassess to estimate closeness to the nose point of P-V curve in this paper. This article proposes an improved voltage collapse proximity index (IVCPI ) that considers the relative direction of active and reactive powers at the receiving end for assessment of the voltage stability status of the system. The proposed approach has been applied to 12-bus and 69-bus distribution systems to validate its practicability. The results also present the estimate of the maximum load-ability of the line due to voltage instability and distance to the line loading margin. It is proved that the proposed index gives adequate results in finding load-ability margins in all practical cases.
One of the main criteria for voltage stability limit in modern power systems is load-ability limit (LL) real-time monitoring of system status and voltage collapse prediction based on the basic concept of maximum power transfer through a line; reassess to estimate closeness to the nose point of P-V curve in this paper. This article proposes an improved voltage collapse proximity index (IVCPI ) that considers the relative direction of active and reactive powers at the receiving end for assessment of the voltage stability status of the system. The proposed approach has been applied to 12-bus and 69-bus distribution systems to validate its practicability. The results also present the estimate of the maximum load-ability of the line due to voltage instability and distance to the line loading margin. It is proved that the proposed index gives adequate results in finding load-ability margins in all practical cases.
[1] P. Kundur, et al., "Definition and classification of power system stability IEEE/CIGRE joint task force on stability terms and definitions," IEEE Transactions on Power Systems, vol. 19, pp. 1387-1401, 2004.
[2] C. W. Taylor, Power system voltage stability: McGraw-Hill Companies, 1994.
[3] Aslanzadeh, S., K. Mohammad, and G. Alireza."Comparison of voltage stability indicators in distribution systems." Indian J. Sci. Res 2.1 (2014): 5-10.
[4] M. Moghavvemi and M. Faruque, "Technique for assessment of voltage stability in ill-conditioned radial distribution network," Power Engineering Review, IEEE, vol. 21, pp. 58-60, 2001.
[5] A. Chebbo, et al., "Voltage collapse proximity indicator: behaviour and implications," IEE Proceedings, Gener., Transm. and Distrib., vol. 139, pp. 241-252, 1992.
[6] M. Moghavvemi and F. Omar, "A line outage study for prediction of static voltage collapse," Power Engineering Review, IEEE, vol. 18, pp. 52-54, 1998.
[7] G. Jasmon, et al., "Maximizing voltage stability in distribution networks via loss minimization," International Journal of Electrical Power & Energy Systems, vol. 13, pp. 148-152, 1991.
[8] M. Chakravorty and D. Das, "Voltage stability analysis of radial distribution networks," International Journal of Electrical Power & Energy Systems, vol. 23, pp. 129-135, 2001.
[9] R. Ranjan and D. Das, "Voltage stability analysis of radial distribution networks," Electric Power Components and Systems, vol. 31, pp. 501-511, 2003.
[10] S. Banerjee, et al., "Determination of the weakest branch in a radial distribution network using local voltage stability indicator at the proximity of the voltage collapse point," International Conference ICPS, IEEE, pp. 1-4, 2009.
[11] S. Chanda and B. Das, "Identification of weak buses in a power network using novel voltage stability indicator in radial distribution system," India International Conf. on Power Electronic IICPE, IEEE, pp. 1-4, 2011.
[12] C. F. Yang, et al., "Optimal setting of reactive compensation devices with an improved voltage stability index for voltage stability enhancement," International Journal of Electrical Power & Energy Systems, 2012.
[13] M. Moghavvemi and M. Faruque, "Power system security and voltage collapse: a line outage based indicator for prediction," International Journal of Electrical Power & Energy Systems, vol. 21, pp. 455-461, 1999.
[14] M. Hauqe, "A linear static voltage stability margin for radial distribution systems," Power Engineering Society General Meeting, IEEE, p. 6, 2006.
[15] B. Venkatesh, et al., "Optimal reconfiguration of radial distribution systems to maximize loadability," IEEE Transactions on Power Systems, vol. 19, pp. 260-266, 2004.
[16] J. Yu, et al., "Letter to the editor: a new line loadability index for radial distribution systems," Electric Power Components and Systems, vol. 36, pp. 1245-1252, 2008.
[17] A. Wiszniewski, "New criteria of voltage stability margin for the purpose of load shedding," IEEE Transactions on Power Delivery, vol. 22, pp. 1367-1371, 2007.
[18] Y. Wang, et al., "A new node voltage stability index based on local voltage phasors," Electric Power Systems Research, vol. 79, pp. 265-271, 2009.
[19] M. Moghavvemi and O. Faruque, "Real-time contingency evaluation and ranking technique," IEE Proceeding on Gener., Transm. and Distrib., vol 145, pp. 517-524, 1998.
[20] A. Wiszniewski, "New criteria of voltage stability margin for the purpose of load shedding," Power Delivery, IEEE Transactions on, vol. 22, pp. 1367-1371, 2007.