Analysis on the Operating Characteristic of UHVDC New Hierarchical Connection Mode to AC System
Abstract
The UHVDC system plays an important role in smart grids. In this paper, a new topology structure of UHVDC hierarchicalconnection mode to different AC systems is analyzed with a view to improving system transmission abilities. Then a newmathematical model is proposed to calculate the MIIF under different UHVDC hierarchical connection modes. The effectof coupling impedance, equivalent impedance and different DC control mode adopted by two group inverters are illustratedto analyze the MIIF. The method to calculate the MISCR of the multi-infeed HVDC system is also applied to HISCR ofUHVDC hierarchical connection mode with the MIIF value. In UHVDC hierarchical connection mode, total power to differenthierarchical active current layer can be allocated reasonably to change parameter of the received power grid. Thus, thecommutation failure can be analyzed according the MIIF change values of UHVDC hierarchical connection mode to the ACsystem. Therefore, it may increase the risk of commutation failure in the other converter when one converter is in a state ofcommutation failure. The correctness of the proposed method is verified by PSCAD simulation. The simulation results areillustrated to verify the operating characteristics of the system.References
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Energy Engineering Conference (APPEEC), 2011 Asia-Pacific, IEEE,
2011, pp. 1–4.
[2] F. Wang, H. Li, J. Liu, W. Lu, W. Chen, Q. Long, Analysis of UHVDC
transient overvoltage based on the actual control and protection strategy,
in: 2014 IEEE PES Asia-Pacific Power and Energy Engineering
Conference (APPEEC), IEEE, 2014, pp. 1–4.
[3] M. Saeedifard, R. Iravani, Dynamic performance of a modular multilevel
back-to-back HVDC system, IEEE Transactions on Power Delivery
25 (4) (2010) 2903–2912.
[4] G.-h. Ye, Y. Zhang, System static safety analysis under multi-UHVDC
hierarchically infeed mode, in: AC and DC Power Transmission, 11th
IET International Conference on, IET, 2015, pp. 1–8.
[5] X.-h. Li, F. Long, Z.-x. Cai, L. Zhu, Modeling and analysis of large
scale power system with multi-infeed HVDC by EMTDC, in: 2010 Asia-
Pacific Power and Energy Engineering Conference, IEEE, 2010, pp.
1–4.
[6] Y. Liu, Z. Chen, Short circuit ratio analysis of multi-infeed HVDC system
with a VSC-HVDC link, in: IECON 2011-37th Annual Conference
on IEEE Industrial Electronics Society, IEEE, 2011, pp. 949–954.
[7] H. Dai, Y. Wang, X. Li, Z. Ming, H. Deng, Characteristic analysis of
reactive power compensation device at HVDC converter station, in:
2012 Asia-Pacific Power and Energy Engineering Conference, IEEE,
2012, pp. 1–5.
[8] L. Weifang, T. Yong, B. Guangquan, S. Yao, Voltage stability analysis
of multi-infeed AC/DC power system based on multi-infeed short circuit
ratio, in: Power System Technology (POWERCON), 2010 International
Conference on, IEEE, 2010, pp. 1–6.
[9] X. Jin, B. Zhou, L. Guan, X. CHENG, Y. ZHANG, HVDC-interactionstrength
index for the multi-infeed-HVDC power system, Automation of
Electric Power System 33 (2009) 98–102.
[10] X. Chen, A. Gole, M. Han, C. Liu, Influence of the miif index on operation
of multi-infeed HVDC systems, in: Electrical Power and Energy
Conference (EPEC), 2011 IEEE, IEEE, 2011, pp. 216–221.
[11] Y. Wang, X. Li, C. Wen, Y. He, Impact of AC system strength on commutation
failure at HVDC inverter station, in: 2012 Asia-Pacific Power
and Energy Engineering Conference, IEEE, 2012, pp. 1–4.
[12] P. Wang, Y. Zhang, H. Chen, X. Li, S. Song, J. Bai, Analysis on the
interaction of AC/DC systems based on multi-infeed Q effective short
circuit ratio, in: 2012 Asia-Pacific Power and Energy Engineering Conference,
IEEE, 2012, pp. 1–4.
[13] Y. Xiaoyu, W. Yuanyuan, G. Weimin, W. Qiang, T. Yaohua, A generator
control strategy for reducing the load shedding amount after the
UHVDC commutation failure, in: Power System Technology (POWERCON),
2014 International Conference on, IEEE, 2014, pp. 1001–1007.
[14] E. Rahimi, A. Gole, J. Davies, I. Fernando, K. Kent, Commutation failure
in single-and multi-infeed HVDC systems, in: AC and DC Power
Transmission, 2006. ACDC 2006. The 8th IEE International Conference
on, IET, 2006, pp. 182–186.
[15] L. Xin-Nian, L. Yao, L. Tao, C. Shu-Yong, L. Xiao, L. Shao-Bo, Study
on the impact of commutation failure on AC voltage of rectifier-side in
UHVDC, in: Power System Technology (POWERCON), 2014 International
Conference on, IEEE, 2014, pp. 2154–2161.
[16] R. Zhang, C. Zhao, Prony analysis of electrical transient characteristics
of AC system during HVDC commutation failure, in: IPEC, 2010
Conference Proceedings, IEEE, 2010, pp. 807–812.
Published
2016-12-04
How to Cite
XIAOJUAN, Huang et al.
Analysis on the Operating Characteristic of UHVDC New Hierarchical Connection Mode to AC System.
Journal of Power Technologies, [S.l.], v. 96, n. 4, p. 229--237, dec. 2016.
ISSN 2083-4195.
Available at: <https://papers.itc.pw.edu.pl/index.php/JPT/article/view/862>. Date accessed: 20 apr. 2024.
Issue
Section
Electrical Engineering
Keywords
UHVDC, Hierarchical Connection Mode, MIIF, HISCR, Commutation failure
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