Corpus ID: 3918123

Power Upgrading of Transmission Line by Combining AC – DC Transmission

@inproceedings{Babu2012PowerUO,
  title={Power Upgrading of Transmission Line by Combining AC – DC Transmission},
  author={P. Vijay Kumar Babu and P. Bhaskara Prasad and M. Padma and M. Padma Lalitha},
  year={2012}
}
Long extra high voltage (EHV) ac lines cannot be loaded to their thermal limits in order to keep sufficient margin against transient instability. With the scheme proposed in this project, it is possible to load these lines very close to their thermal limits. The conductors are allowed to carry usual ac along with dc superimposed on it. The added dc power flow does not cause any transient instability. This project gives the feasibility of converting a double circuit ac line into composite ac–dc… Expand

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References

SHOWING 1-10 OF 10 REFERENCES
HVDC Conversion of HVAC Lines to Provide Substantial Power Upgrading
The feasibility of conversion of AC lines to DC lines for a substantial power upgrading is analyzed, and it is shown that increases of 3.5 times or more are feasible. The main design objective is toExpand
The unified power flow controller: a new approach to power transmission control
This paper shows that the unified power flow controller (UPFC) is able to control both the transmitted real power and, independently, the reactive power flows at the sending- and the receiving-end ofExpand
Computer Modelling of Electrical Power Systems
From the Publisher: Describes the use of power system component models and efficient computational techniques in the development of a new generation of programs representing the steady and dynamicExpand
―Simultaneous ac-dc power transmission
  • ―Simultaneous ac-dc power transmission
  • 2001
Gyugyi, ―Unified power flow concept for flexible A.C. transmission system,
  • Proc. Inst. Elect. Eng.,
  • 1992
―Unified power flow concept for flexible A.C. transmission system,‖ Proc
  • Inst. Elect. Eng
  • 1992
C. transmission system,‖ in Proc
  • Inst. Elect. Eng
  • 1991
Danfors, ―HVDC conversion of HVAC line to provide substantial power upgrading,
  • IEEE Trans. Power Del.,
  • 1991
Direct current transmission.