Impacts of UHVDC from Hami to Zhengzhou on Voltage Stability of Henan Power Grid

Abstract:

Based on the planning data of Henan power grid in 2014, the impacts of 800kV UHVDC from Hami to Zhengzhou on static voltage stability of Henan power grid are analyzed in details. Firstly, this paper introduces the principle of voltage stability analysis, the stability margin index has been established. Secondly, the analysis of static voltage stability for Henan power grid before and after the UHVDC from Hami to Zhengzhou putting into operation is carried out, the weak buses and regions in Henan power grid are pointed out. Finally, the operation patterns of Henan power grid after the UHVDC putting into operation are classified and optimized. Simulation results show that the improper operation pattern may significantly deteriorate the static voltage stability of power grid. The operation patterns of HVDC power multi-channel transferring from Henan to Central China grid combined with partly internal consumption are favorable to improve the static voltage stability of the whole system. The analysis results provide theoretical basis for the future operation of Henan grid.

• Periodical: Applied Mechanics and Materials (Volumes 347-350)
• Pages: 1435-1439
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.347-350.1435
• Online since: August 2013
• Authors: Yan Mei Hu, Jun Yong Wu, Fang Li, Hong Jun Fu
• Keywords: Hami-Zhengzhou UHVDC, Henan Power Grid, PSASP, Static Voltage Stability Margin, Voltage Stability

References

[1] Su Sheng-xin. Put the plan of Xinjiang electric power transmit east into the national energy strategy[J]. Industry of China，2011：43.

[2] Taylor C W. Voltage stability of power system[M]. Beijing: China Electric Power Press, (2002).

[3] Diaz de Leon II J A. Taylor C W. Understanding and solving short-term voltage stability problems[C]. Power Engineering Society Summer Meeting. USA: IEEE，2002: 745-752.

DOI: 10.1109/pess.2002.1043412

[4] Zhang Jian-hua, Zhang Guo-hua, Yang Jing-yan. An analysis of static voltage stability for Langfang power system based on PSASP[J]. Power System Protection and Control, 2009：37(5).

[5] Li Mu-yi，Deng Li-min，Guo Niao，et al. Analysis of Heilongjiang Power Grid stability based on PSASP[J]. Heilongjiang Electric Power，2010，32（3）：185-187.

[6] Jurado F，Cano A. Discrimination between transient voltage stability and voltage sag[A]. Harmonics and Quality of Power，10th International Conference[C]. 2002(2): 670-675.

DOI: 10.1109/ichqp.2002.1221515