HVDC link between 2 PV type buses
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Hello. I am doing load flow calculation in a 69 bus system. There are total 7 dc links which are connected between different buses. However, all the buses where dc links are connected are PV type/voltage controlled buses. In this case, which bus I have to consider as a Rectifier bus and which bus I have to consider as an Inverter bus for HVDC transmission?