روشي جدید براي بارزدايي ولتاژي با در نظر گرفتن حساسيت ولتاژ و توان راکتيو بارها
محورهای موضوعی : مهندسی برق و کامپیوتر
جواد مدرسی
1
(دانشگاه اصفهان)
مهدی قلی‌پور
2
(دانشگاه اصفهان)
امین خدابخشیان
3
(مهندسی)
کلید واژه: بارزدايي ولتاژي باس مؤثر توان راکتيو حساسيت ولتاژ پایداری ولتاژ,
چکیده مقاله :
بارزدایی، آخرین واکنش برای کنترل و پایداری سیستم قدرت در هنگام وقوع اغتشاش است. تعیین محل و مقدار بارزدایی از مسایلی است که همواره گریبان‌گیر بهره‌برداران سیستم قدرت بوده است. در اين مقاله روش جدیدی براي تعیین باس مناسب جهت انجام بارزدایی ولتاژی پیشنهاد می‌شود. در روش پيشنهادشده بر خلاف روش‌های پيشين از دو شاخص حساسيت ولتاژ نسبت به توان اکتيو و توان راکتيو بارها استفاده می‌شود تا باس مناسب جهت بارزدایی ولتاژي مشخص شود. در نظر گرفتن توان راکتیو بارها در فرایند تعیین باس مناسب برای بارزدایی ولتاژی باعث قطع توان راکتیو بیشتر در پله‌هاي ابتدايي بارزدايي ولتاژی شده و پروفيل ولتاژ بهبود می‌یابد. در نتیجه، توان اکتیو کمتری توسط بارزدایی ولتاژی قطع می‌شود. روش پيشنهادي به همراه روش مبتني بر حساسيت ولتاژ نسبت به توان اکتيو در شبکه تست 118باسه IEEE و شبکه 39باسه New England پياده‌سازي مي‌شوند تا درستی روش پیشنهادشده مورد بررسی قرار گیرد. نتایج حاصل نشان‌دهنده برتری روش پیشنهادی نسبت به روش حساسیت ولتاژ نسبت به توان اکتیو است.
Load shedding is the last line of defense for controlling and stabilizing of the power system in the occurrence of a disturbance. Determining the amount and location of the load shedding are issues that the power system operators always have faced In this paper, a new method is proposed for determining the location of under voltage load shedding (UVLS). The proposed method, unlike the previous UVLS methods, uses two different factors to determine the effective location of UVLS. Considering the load reactive power in the process of determination of the UVLS location leads to disconnecting more reactive power during the initial steps of UVLS. Therefore, less active power sheds by the UVLS. To verify the accuracy of the proposed method, the proposed UVLS method accompanied with the method which uses the sensitivity of voltage with respect to the active power are implemented in IEEE 118-bus test system and New England 39 bus system. The obtained results show the superiority of the proposed method.
[1] P. Kundur, J. Paserba, V. Ajjarapu, G. Andersson, A. C. Bose, C. N. Hatziargyriou, D. Hill, A. Stankovic, C. Taylor, T. Van Cutsem, and V. Vittal, "Definition and classification of power system stability IEEE/CIGRE joint task force on stability terms and definitions," IEEE Trans. on Power Systems, vol. 19, no. 3, pp. 1387-1401, Aug. 2004.
[2] M. M. Hosseini-Bioki, M. Rashidinejad, and A. Abdollahi, "An implementation of particle swarm optimization to evaluate optimal under-voltage load shedding in competitive electricity markets," J. of Power Sources, vol. 242, pp. 122-131, Nov. 2013.
[3] A. Ahmadi and Y. Alinejad-Beromi, "A new integer-value modeling of optimal load shedding to prevent voltage instability," International J. of Electrical Power & Energy Systems, vol. 65, pp. 210-219, Feb. 2015.
[4] R. Kanimozhi, K. Selvi, and K. M. Balaji, "Multi-objective approach for load shedding based on voltage stability index consideration," Alexandria Engineering J., vol. 53, no. 5, pp. 817-825, Dec. 2014.
[5] L. D. Arya, P. Singh, and L. S. Titare, "Differential evolution applied for anticipatory load shedding with voltage stability considerations," International J. of Electrical Power & Energy Systems, vol. 42, no. 1, pp. 644-652, Nov. 2012.
[6] J. Lei, Y. Li, B. Zhang, and W. Liu, "A WAMS based adaptive load shedding control strategy using a novel index of transient voltage stability," in Proc. 33rd Chinese Control Conf., Nanjing, China, pp. 8164-8169, Jul. 2014.
[7] M. H. A. Hamid, H. Hashim, H. A. Rashid, and I. Z. Abidin, "Under voltage load shedding using voltage stability indices," in Proc. IEEE Innovative Smart Grid Technologies - Asia, ISGT ASIA'14, pp. 732-736, Kuala Lumpur, Malaysia, May 2014.
[8] A. Arief, M. B. Nappu, M. Gallagher, and D. Zhao-Yang, "Under voltage load shedding utilizing trajectory sensitivity to enhance voltage stability," in Proc. 21st Australasian Universities Power Engineering Conf., 6 pp., Brisbane, Australia, Sep. 2011.
[9] A. Mahari and H. Seyedi, "A wide area synchrophasor-based load shedding scheme to prevent voltage collapse," International J. of Electrical Power and Energy Systems, vol. 78, pp. 248-257, Jun. 2016.
[10] I. Kaffashan and T. Amraee, "Probabilistic undervoltage load shedding using point estimate method," IET Generation, Transmission, & Distribution, vol. 9, no. 15, pp. 2234-2244, Nov. 2015.
[11] A. Ahmadi and Y. Alinejad-Beromi, "A new integer-value modeling of optimal load shedding to prevent voltage instability," International J. of Electrical Power and Energy Systems, vol. 65, pp. 210-219, Nov. 2015.
[12] A. Arief, Z. Dong, M. B. Nappu, and M. Gallagher, "Under voltage load shedding in power systems with wind turbine-driven doubly fed induction generators," Electric Power Systems Research, vol. 96, pp. 91-100, Mar. 2013.
[13] A. Arief, "Under voltage load shedding using trajectory sensitivity analysis considering dynamic loads," Universal J. of Electrical and Electronic Engineering, vol. 2, no. 3, pp. 118-123, Mar. 2014.
[14] V. C. Nikolaidis and C. D. Vournas, "Design strategies for load-shedding schemes against voltage collapse in the hellenic system," IEEE Trans. on Power Systems, vol. 23, no. 2, pp. 582-591, May 2008.
[15] T. Junjie, L. Junqi, F. Ponci, and A. Monti, "Adaptive load shedding based on combined frequency and voltage stability assessment using synchrophasor measurements," IEEE Trans. on Power Systems, vol. 28, no. 2, pp. 2035-2047, Mar. 2013.
[16] L. C. P. d. Silva, V. F. d. Costa, and W. Xu, "Preliminary results of improving the modal analysis technique for voltage stability assessment," in Proc. IEEE Power Engineering Society Summer Meeting, pp. 1946-1950, Seattle City, USA, Jul. 2000.
[17] J. Sasikala and M. Ramaswamy, "Fuzzy based load shedding strategies for avoiding voltage collapse," Applied Soft Computing, vol. 11, no. 3, pp. 3179-3185, Apr. 2011.
[18] Y. Wang, I. R. Pordanjani, W. Li, W. Xu, and E. Vaahedi, "Strategy to minimise the load shedding amount for voltage collapse prevention," IET Generation, Transmission & Distribution, vol. 5, no. 3, pp. 307-313, Mar. 2011.
[19] Y. Xu, Z. Y. Dong, F. Luo, R. Zhang, and K. P. Wong, "Parallel-differential evolution approach for optimal event-driven load shedding against voltage collapse in power systems," IET Generation, Transmission & Distribution, vol. 8, no. 4, pp. 651-660, Apr. 2013.
[20] https://www.ee.washington.edu/research/pstca/pf118/pg_tca118bus.htm.
[21] https://www.ee.washington.edu/research/pstca/dyn30/pg_tcadyn30.htm.
[22] CIGRE Task Force 38-02-11, Indices for Predicting Voltage Collapse Including Dynamic Phenomena, 1994.
[23] A. M. Abed, "WSCC voltage stability criteria, undervoltage load shedding strategy, and reactive power reserve monitoring methodology," in Proc. the IEEE Power Engineering Society Summer Meeting, pp. 191-197, Edmonton, Canada, Jul. 1999.
[24] K. Mollah, M. Bahadornejad, N. K. C. Nair, and G. Ancell, "Automatic under-voltage load shedding: a systematic review," in Proc. IEEE Power and Energy Society General Meeting, 7 pp., San Diego, California, USA,Jul. 2012.
[25] IEEE Std.C37.118.1-2011 (Revision of IEEE Std C37.118-2005), IEEE Standards for Synchrophasor Measurments for Power Systems, 2011.
[26] M. Abedini, M. Sanaye-Pasand, and S. Azizi, "Adaptive load shedding scheme to preserve the power system stability following large disturbances," IET Generation, Transmission & Distribution, vol. 8, no. 12, pp. 2124-2133, Dec. 2014.
[27] W. Gu, et al., "Adaptive decentralized under-frequency load shedding for islanded smart distribution networks," IEEE Trans. on Sustainable Energy, vol. 5, no. 3, pp. 886-895, Apr. 2014.
[28] J. A. Laghari, H. Mokhlis, M. Karimi, A. H. A. Bakar, and H. Mohamad, "A new under-frequency load shedding technique based on combination of fixed and random priority of loads for smart grid applications," IEEE Trans. on Power Systems, vol. 30, no. 5, pp. 2507-2515, Oct. 2015.
[29] C. P. Reddy, S. Chakrabarti, and S. C. Srivastava, "A sensitivity-based method for under-frequency load-shedding," IEEE Trans. on Power Systems, vol. 29, no. 2, pp. 984-985, Nov. 2014.