Надіслати цю статтю 
Ensuring dynamic stability of constant power loads in future dc distribution power systems using active damping
Анотація
DC distribution is widely used in telecom and data centres, and it is envisioned to get wide acceptance in microgrid and buildings' power systems in the near future as a viable alternative to conventional AC systems. The main building blocks of DC power systems are switching power converters and rectifiers that have nonlinear characteristics. When the voltages are tightly regulated, the converters will act as constant power loads (CPLs). The CPL is known to exhibit the negative incremental impedance and may cause the dynamic instability of the system. The problem associated with CPLs is traditionally tackled using passive damping which has serious drawbacks such as increased size, decreased reliability and efficiency of the system. This paper introduces an active method to inject damping current into the power bus employing an auxiliary power circuit. The proposed approach ensures that the system operates with sufficient stability margin in a small-signal sense. Comparing with previous works, the advantage of the proposed damping circuit is that the absorbed energy for damping is transferred into a neighbouring bus with minimal energy losses.
Повний текст:
PDFПосилання
E. Persson, “Transient effects in application of PWM inverters to induction motors,” IEEE Trans. Ind. Appl., vol. 28, no. 5, pp. 1095–1101, Sept./Oct. 1992.
G. Byeon, T. Yoon, S. Oh, and G. Jang, “Energy management strategy of the DC distribution system in buildings using the EV service model,” IEEE Trans. Power Electron., vol. 28, no. 4, pp. 1544–1554, Apr. 2013.
D. Boroyevich, I. Cvetkovic, D. Dong, R. Burgos, F. Wang, and F. Lee, “Future electronic power distribution systems a contemplative view,” in Proc. 12th Int. Conf. Optimization Elect. Elect. Equipment, 2010, pp. 1369–1380.
A. Fukui, T. Takeda, K. Hirose, and M. Yamasaki, “HVDC power distribution systems for telecom sites and data centers,” IEEE Int. Power Electron. Conf., 2010, pp. 874–880.
A. Kwasinski and P. T. Krein, “A microgrid-based telecom power system using modular multiple-input dc-dc converters,” in Proc. IEEE Telecommunications Energy Conference (INTELEC), 2005, pp. 515–520.
R. Quigley, “More Electric Aircraft,” in Proc. IEEE Applied Power Electron. Conf. (APEC), 1993, pp. 906–911.
A. Emadi, A. Khaligh, C. H. Rivetta, and G. A. Williamson, “Constant power loads and negative impedance instability in automotive systems: Definition, modeling, stability, and control of power electronic converters and motor drives,” IEEE Trans. Veh. Technol., vol. 55, no. 4, pp. 1112–1125, Jul. 2006.
D. S. Parker and C. G. Hodge, “Electric Warship,” Power Engineering Journal, vol. 12, no.1, pp. 5–13, Feb. 1998.
C. M. Wildrick, F. C. Lee, B. H. Cho, and B. Choi, “A method of defining the load impedance specification for a stable distributed power system,” IEEE Trans. Power Electron., vol. 10, no. 3, pp. 280–285, May 1995.
R. D. Middlebrook, “Input filter considerations in design and applications of switching regulators,” in Proc. IEEE Ind. Appl. Soc. Annu. Meeting, 1976, pp. 91–107.
J. M. Zhang, X. G. Xie, D. Z. Jia, and Z. Qian, “Stability problems and input impedance improvement for cascaded power electronic systems,” in Proc. IEEE Appl. Power Electron. Conf. (APEC), 2004, pp. 1018–1024.
P. S. Shenoy and P. T. Krein, “Power supply aware computing,” in Proc. Int. Conference on Energy Aware Computing (ICEAC), 2010, pp. 1–4.
Z. Shan, C. K. Tse, and S. C. Tan, “Pre-energized auxiliary circuits for very fast transient loads: Coping with load-informed power management for computer loads,” IEEE Trans. Circuits Syst. I, vol. 61, no. 2, pp. 637–648, February 2014.
J. Sun,“Small-signal methods for AC distributed power systems — A Review,” IEEE Trans. Power Electron., vol. 24, no. 11, pp. 2545–2554, Nov. 2009.
J. Sun, “Impedance-based stability criterion for grid-connected inverters,” IEEE Trans. Power Electron., vol. 26, no. 11, pp. 3075–3078, Nov. 2011.
X. Feng, J. Liu, and F. C. Lee, “Impedance specification for stable DC distributed power systems,” IEEE Trans. Power Electron., vol. 17, no. 2, pp. 157–162, Mar. 2002.
M. Cespedes, L. Xing, and J. Sun, “Constant-power load system stabilization by passive damping,” IEEE Trans. Power Electron., vol. 26, no. 7, pp. 1832–1836, Jul. 2011.
V. Krishnamurthi, W. Sa’id, N. Al-Awad, “Phase Margin of Linear Time Invariant Systems from Routh Array,” IEE Proc. Contr. Theor. and Applic., vol. 138, no. 4, pp. 410–412, Jul. 1991.
X. Wang, D. Vilathgamuwa, and S. Choi, “Decoupling load and power system dynamics to improve system stability,” in Proc. Int. Conf. Power Electron. Drives Syst., 2005, pp. 268–273.
J. Wang and D. Howe, “A power shaping stabilizing control strategy for dc power systems with constant power loads,” IEEE Trans. Power Electron., vol. 23, no. 6, pp. 2982–2989, Nov. 2008.
A. Rahimi and A. Emadi, “Active damping in dc/dc power electronics converters: A novel method to overcome the problems of constant power loads,” IEEE Trans. Ind. Electron., vol. 56, no. 5, pp. 1428–1439, May 2009.
X. Liu and A. J. Forsyth, “Comparative study of stabilizing controllers for brushless DC motor drive systems,” in Proc. IEEE Int. Conf. Electr. Mach. Drives, 2005, pp. 1725–1731.
X. Liu, A. J. Forsyth, and A. M. Cross, “Negative input-resistance compensator for a constant power load,” IEEE Trans. Ind. Electron., vol. 54, no. 6, pp. 3188–3196, Dec. 2007.
X. Liu, N. Fournier, and A. J. Forsyth, “Active stabilization of a HVDC distribution system with multiple constant power loads,” in Proc. IEEE Vehicle Power Propulsion Conf., 2008, pp. 1–6.
S. Mollov, “A simple adaptive control for a novel voltage bus conditioner with reduced capacitive storage,” in Proc. Europ. Conf. on Power Electron. and Applic., pp. 1–10, Aug. 2011.
Y. J. Kim, Y. Coll, B. Seok, H. Jung, J. La, Y. S. Kim, “A Voltage Bus Conditioner with reduced capacitive storage,” in Proc. 2009 Intern. Conf. on Electr. Mach. and Syst. (ICEM), 2009, pp. 1–6.
J. Zhang, “Bidirectional DC-DC power converter design optimization, modelling and control,” Ph.D. dissertation, Virginia Polytechnic Inst., Blacksburg, Virginia, 2008.
S. Amini Akbarabadi, H. Atighechi, and J. Jatskevich, “Circuit-averaged and state-space-averaged-value modeling of second-order flyback converter in CCM and DCM including conduction losses,” in Proc. International Conference on Power Engineering, Energy and Electrical Drives (POWERENG), 2013, pp. 995–1000.
F. W. Grover, Inductance Calculations. Mineola: Dover Publications, 2004.
Метрики статей
Metrics powered by PLOS ALM
Посилання
- Поки немає зовнішніх посилань.
