Harmonic resonance analysis for wind-thermal-bundled half-wavelength AC transmission system

被引：0
|
作者：
Chen C. [1 ]
Yang H. [1 ]
机构：
[1] School of Electrical Engineering and Information, Sichuan University, Chengdu
来源：
Dianli Zidonghua Shebei/Electric Power Automation Equipment | 2019年 / 39卷 / 02期
基金：
中国国家自然科学基金;
关键词：
AC transmission system; Half-wavelength transmission line; Harmonic resonance; Modal analysis; Participation factor; Standardized sensitivity; Wind-thermal-bundled;
D O I：
10.16081/j.issn.1006-6047.2019.02.008
中图分类号：
学科分类号：
摘要：
Large distributed capacitors between ground and long distance overhead transmission lines and cables can easily cause the harmonic resonance problems for the grid-connected wind power system. In order to analyze the harmonic resonance amplification characteristics of the large-scale wind-thermal-bundled half-wavelength AC transmission system, the decoupling matrix of harmonic resonance transmission and amplification is derived based on the selective modal analysis. The interactive participation factor is used to evaluate the excitation effect of harmonic disturbance sources on any nodes in the system, and to determine the nodes which are easily affected by the harmonic resonance transmission and amplification. The harmonic response voltage of each node caused by the characteristic harmonics, which have larger contents in the actual grid-connected wind power system, is analyzed according to the different proportions of wind power when the resonance happens. The standardized sensitivity and its dominant coefficient are introduced to analyze the element sensitivity with a comprehensive consideration of various resonance conditions, which can provide a theoretical basis for suppressing multiple harmonic resonance amplification or subharmonic resonance simultaneously. Simulation shows that, there may have harmonic resonance amplification in the wind-thermal-bundled half-wavelength AC transmission system. As the proportion of wind power increases, the resonance frequency decreases gradually. The 7th and 11th harmonic resonance amplifications have serious influences on the 35 kV and 110 kV buses, which may endanger the safe operation of the system. The head and end of the half-wavelength transmission line are not affected by the harmonic resonance transmission and amplification and can ope-rate safely. The simulation is carried out with PSCAD to verify the effectiveness of the proposed method. © 2019, Electric Power Automation Equipment Press. All right reserved.
引用
收藏
页码：50 / 57and64
页数：5714
相关论文
共 16 条
  • [1] Deng X., Wang D., Shen Y., Et al., Main circuit parameter design of Zhundong-Sichuan ±1100 kV UHVDC power transmission project, Electric Power Automation Equipment, 34, 4, pp. 133-140, (2014)
  • [2] Yang D., Liu Y., Preliminary discussion on China transmission backbone in the future, Electric Power Automation Equipment, 30, 8, pp. 1-5, (2010)
  • [3] Chen W., Ai X., Wu T., Et al., Influence of grid-connected pho-tovoltaic system on power network, Electric Power Automation Equipment, 33, 2, pp. 26-32, (2013)
  • [4] Zhou S., Chen C., Tan M., Et al., Harmonic transmission characteristic analysis of halfwavelength AC transmission line based on pole distribution feature of frequency-length factor, High Voltage Engineering, 44, 1, pp. 51-58, (2018)
  • [5] Chen C., Yang H., Tan M., Harmonic transmission characteristic analysis of non-standard half-wavelength AC transmission line, Power System Technology, 42, 5, pp. 1580-1587, (2018)
  • [6] Tang Z., Yang H., Harmonic resonance research based on modal analysis for grid-connected wind farms, Electric Power Automation Equipment, 37, 3, pp. 87-92, (2017)
  • [7] Li Y., Cheng Y., Liu Y., Et al., Analytic method of harmonic amplification based on singular value decomposition theory, Automation of Electric Power Systems, 41, 8, pp. 16-21, (2017)
  • [8] Tan M., Peng X., Wang T., Et al., Study on the harmonic resonance of grid-connected of wind farms and half-wavelength AC transmission system based on modal analysis method, High Voltage Engineering, 44, 1, pp. 90-98, (2018)
  • [9] Tang Y., Zhao L., Guo X., Impact of wind power penetration on angle transient stability of wind-thermal combined system, Automation of Electric Power Systems, 37, 20, pp. 34-40, (2013)
  • [10] Lin L., Wu C., Qi J., Analysis of urgent generator tripping control under serious fault for sending-end system of bundled thermal/wind power, Power System Technology, 40, 3, pp. 882-888, (2016)
12