Ali BIDADFAR, Mehrdad ABEDI, Mehdi KARRARI

Passive AC network supplying the integration of CCC-HVDC and VSC-HVDC systems

The integration of a capacitor-commutated converter (CCC) high-voltage direct current (HVDC) (CCC-HVDC) and voltage source converter (VSC) HVDC (VSC-HVDC) is proposed in this paper to supply entirely passive AC networks. The key point of this integration is the flat characteristic of the DC voltage of the CCC-HVDC, which provides the condition for the VSC to connect to the CCC DC link via a current regulator. The advantages of the proposed combined infeeding system are the requirement of only one DC line, and better dynamic responses. The structure of the proposed infeeding system, as well as its control system, is studied. Simulation results are provided to validate the effectiveness of the proposed system and its control strategy. Two other schemes for infeeding AC passive networks are studied to demonstrate the advantages of the proposed system.

Anahtar Kelimeler:

Capacitor-commutated converter, HVDC, voltage source converter, passive network

Passive AC network supplying the integration of CCC-HVDC and VSC-HVDC systems

Keywords:

Capacitor-commutated converter, HVDC, voltage source converter, passive network,

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C.V. Thio, J.B. Davies, “New synchronous compensators for the nelson river HVDC system-planning requirements and speci?cations”, IEEE Transactions on Power Delivery, Vol. 6, pp. 922–928, 1991.
Y. Zhuang, R.W. Menzies, O.B. Nayak, H.M. Turanli, “Dynamic performance of a STATCOM at an HVDC inverter feeding a very weak AC system”, IEEE Transactions on Power Delivery, Vol. 11, pp. 958–964, 1996.
O.B. Nayak, A.M. Gole, D.G. Chapman, J.B. Davies, “Dynamic performance of static and synchronous compensators at an HVDC inverter bus in a very weak AC system”, IEEE Transactions on Power Systems, Vol. 9, pp. 1350–1358, 1994.
M. DeOliveira, M. Poloujadoff, A. LeDu, P.G. Therond, “Supply of an entirely passive AC system through an HVDC link”, International Journal of Electrical Power & Energy Systems, Vol. 16, pp. 111–116, 1994.
B.R. Andersen, L. Xu, “Hybrid HVDC system for power transmission to island networks”, IEEE Transactions on Power Delivery, Vol. 19, pp. 1884–1890, 2004.
C. Guo, C. Zhao, “Supply of an entirely passive AC network through a double-infeed HVDC system”, IEEE Transactions on Power Electronics, Vol. 24, pp. 2835–2541, 2010.
G. Zhang, Z. Xu, H. Liu, “Supply passive networks with VSC-HVDC”, Proceedings of the IEEE/PES Summer Meeting, 2001.
C.K. Sao, P.W. Lehn, “Intentional islanded operation of converter fed microgrids”, Proceedings of the IEEE Power Energy Society General Meeting, 2006.
C. Du, M.H. J. Bollen, E. Agneholm, and A. Sannino, “A new control strategy of a VSC-HVDC system for highquality supply of industrial plants”, IEEE Transactions on Power Delivery, Vol. 22, pp. 2386–2394, 2007.
C. Zhao, L. Li, G. Li, C. Guo, “A novel coordinated control strategy for improving the stability of frequency and voltage based on VSC-HVDC”, Proceedings of the 3rd International Conference on Electric Utility Deregulation Restructuring and Power Technologies, pp. 2202–2206, 2008.
S. Li, M. Zhou, Z. Liu, J. Zhang, Y. Li, “A study on VSC-HVDC based black start compared with traditional black start”, Proceedings of the International Conference on Sustainable Power Generation Supply, pp. 1–6, 2009. G. Ding, M. Ding, G. Tang, “An innovative hybrid PWM technology for VSC in application of VSC-HVDC transmission system”, Proceedings of the Electric Power Conference, pp. 1–8, 2008.
L. Zhang, L. Harnefors, H.P. Nee, “Modeling and control of VSC-HVDC links connected to island systems”, IEEE Transactions on Power Systems, Vol. 26, pp. 783–789, 2011.
J. Reeve, J.A. Baron, G.A. Hanley, “A technical assessment of artificial commutation of HVDC converters with series capacitors”, IEEE Transactions on Power Apparatus and Systems, Vol. PAS-87, pp. 1830–1840, 1968. Y. Kazachkov, N.Y. Schenectady, “Fundamentals of a series capacitor commutated HVDC terminal”, IEEE Transactions on Power Delivery, Vol. 13, pp. 1157–1161, 1998.
K. Sadek, M. Pereira, D.P. Brandt, A.M. Gole, A. Daneshpooy, “Capacitor commutated converter circuit configurations for DC transmissions”, IEEE Transactions on Power Delivery, Vol. 13, pp. 1257–1264, 1998.
M. Meisingset, A.M. Gole, “A comparison of conventional and capacitor commutated converters based on steadystate and dynamic considerations”, Proceedings of the 7th International Conference on AC-DC Power Transmission, pp. 49–54, 2001.
F. Yang, Y. Chang, “Study on capacitor commutated converter applied in HVDC projects”, PES General Meeting, pp. 1–5, 2007.
M.P. Kazmierkowski, R. Krishnan, F. Blaabjerg, Control in Power Electronics, Massachusetts, Academic Press, 200 J.W. Choi, S.K. Sul, “Fast current controller in three-phase AC/DC boost converter using d-q axis crosscoupling”, IEEE Transactions on Power Electronics, Vol. 13, pp. 179–185, 1998.
M.P. Kazmierkowski, L. Malesani, “Current control techniques for three-phase voltage-source PWM converters: a survey”, IEEE Transactions on Industrial Electronics, Vol. 45, pp. 691–703, 1998.
L. Zhang, “Modeling and control of VSC-HVDC links connected to weak AC systems”, PhD Dissertation, Royal Institute of Technology, Stockholm, Sweden, 2010.
L. Harnefors, M. Bongiornos, S. Lundberg, “Input-admittance calculation and shaping for controlled voltage-source converters”, IEEE Transactions on Industrial Electronics, Vol. 54, pp. 3323–3334, 2007.