联络线随机功率波动对其输电能力影响的分析方法

发布时间：2018-05-30 05:46

本文选题：特高压 + 联络线　；参考：《电力系统自动化》2014年02期

【摘要】：目前中国华北—华中特高压同步电网正常运行时,特高压联络线上经常会出现较大幅度的随机功率波动现象,有可能对联络线的传输能力造成不良影响。针对这一实际问题,文中在分析特高压联络线随机功率波动的波形、周期、幅值等特性基础上,提出了一种可以定量分析联络线随机功率波动对其输电能力影响的准稳态分析方法。该方法通过在负荷上叠加功率波动来模拟产生特高压联络线功率波动,从而可以计算出联络线功率波动和输电能力之间的定量关系。利用该方法分析了特高压联络线上功率波动对考虑暂态稳定限制时联络线输电能力的影响,研究结果可为特高压同步电网的安全运行提供理论参考。
[Abstract]:At present, when the UHV synchronous power grid in North China and Central China is running normally, the phenomenon of random power fluctuation often occurs on the UHV tie-line, which may have a negative impact on the transmission capacity of the tie-line. Aiming at this practical problem, based on the analysis of waveform, period and amplitude of random power fluctuation of UHV tie-line, This paper presents a quasi-steady analysis method which can quantitatively analyze the influence of random power fluctuation on the transmission capacity of tie-line. This method simulates the generation of UHV tie-line power fluctuation by superimposing power fluctuations on the load, thus the quantitative relationship between the tie-line power fluctuation and the transmission capacity can be calculated. By using this method, the influence of power fluctuation on the transmission capacity of UHV tie-line considering transient stability constraints is analyzed. The results can provide a theoretical reference for the safe operation of UHV synchronous power network.
【作者单位】：强电磁工程与新技术国家重点实验室华中科技大学;美国中西部电网独立输电系统运行公司;
【基金】：国家电网公司大电网重大专项资助项目(SGCC-MPLG026-2012) 国家自然科学基金资助项目(51177057)~~
【分类号】：TM711

【参考文献】