Power Transmission Capability and Transient Stability Influence Factors of UHV Half-Wavelength Transmission Line

被引：0
|
作者：
Wang A. [1 ]
Ren D. [1 ]
Tang Y. [1 ]
Yi J. [1 ]
Zhang J. [1 ]
机构：
[1] China Electric Power Research Institute, Haidian District, Beijing
来源：
| 1600年 / Power System Technology Press卷 / 41期
关键词：
Half-wavelength; Influencing factors; Natural power; Serious fault location; Transmission capability;
D O I：
10.13335/j.1000-3673.pst.2017.0373
中图分类号：
学科分类号：
摘要：
Recently, under trend of building global energy interconnection (GEI), half-wavelength transmission technology is concerned again. In order to study transmission capacity of UHV half-wavelength transmission system, a model of half-wavelength UHV transmission system is constructed in this paper and its natural power is calculated. Boundary conditions for calculating power transmission capability are presented. Drift phenomenon of serious fault locations in different generating schemes is analyzed. From perspective of transient stability limit, influencing factors such as generator parameters, excitation system model, generating scheme, operation sequence of protective relays, voltage level, short-circuit capacity of receiving system, and short-circuit reactance of transformers, are examined. Influence range of the transmission capability is presented quantitatively. Research results show that 1000kV half-wavelength power transmission system possesses transmission capability of natural power and above for 3000km transmission distance. Except transformer short circuit reactance, these factors have remarkable impact on transmission capability. © 2017, Power System Technology Press. All right reserved.
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页码：3168 / 3173
页数：5
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