西电东送主网架的三大交流断面潮流趋势分析

Analysis on the Power Flow Trend of Three AC Cross-Sections in Main West-to-East Transmission Lines

随着南方电网西电东送直流规模的不断增大,交流通道的地位将发生变化。考虑了金中直流推迟投产、藏东南电力远景接续贵电送广东等的影响,计算西电东送三大交流断面在"十二五"期间的送电能力,分析其中长期的潮流发展趋势,并就其"十二五"期间的地位问题提出了建议。

As the scale of West-to-East HVDC power transmission in China Southern Power Grid （CSG） is increasing, the status of AC transmission lines in CSG will be changed. In consideration of the impact of some sensitive factors such as Jinzhong HVDC line possible to be put off and the hydraulic power from Southeast Xizang possible to be sent to Guangdong through Guizhou, this paper calculates the capabilities of three AC cross-sections in main West-to-East transmission lines of CSG in the twelfth Five-Year period, and analyzes their power flow trends in medium and long terms, and furthermore gives suggestions for their status issue in the period.