Possibility of Power Tapping From Composite AC-DC Power Transmission Lines project explains about procedure to handle high voltage ac lines which are loaded with thermal limits. Basically DC currents are carried by conductors with AC super imposed on lines. This paper covers explanation about how rural areas can access power transmission by using simple power tapping procedure.
This can be done by using a PSCAD/EMTDC software package with a digitally simulated scheme. Using simulators a rapid test is conducted to find out how tapping will affect composite AC-DC transmission line and its effect on total power system. Result from simulator shows there is negligible impact on normal AC-DC power lines.
This paper shows how power system can be modified to composite ac-dc line by changing it from existing EHV lines.
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