simultaneous AC_DC transmissio, simultaneous AC_DC transmissio
Would you please elaborate other system specification/ requirements?
When DC is injected into AC and transmitted at the same time through the same transmission line then the system is called simultaneous AC-DC transmission system. In operational point of view this system is very much close to AC-DC parallel system and the difference is that simultaneous AC-DC has no separate DC line.The dc power is obtained by converting a part of ac using line commutated 12-pulse rectifier bridge as used in conventional HVDC and injected to the neutral point of the zig-zag connected secondary windings of sending end transformer. The converters are connected to ac buses by means of Y-Y and Y-D transformers. The same is reconverted to ac by the conventional line commutated 12-pulse inverter at the receiving end. The inverter bridge is connected to the neutral of zig-zag connected winding of the receiving end transformer. The line conductors are connected between the zig-zag secondary windings of the transformer at both ends.
Hi, I don't have a model that pertaining to this. However, an example of LCC HVDC system is available in PSCAD. I hope you can work around it to satisfy your system requirement,.
thank you for your support
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