(4)Vdc=32πTapVaccosα-3πXtrIdcWhere Vdc is the DC voltage, Tap is the transformer tap relative position,Vac is the phase-phase voltage in AC side,Xtr is the transformer reactance and Idc is the HVDC current. Commutation (overlap) angle μ of a converter can be obtained through Eq. ...
For AC transmission lines connected to an LCC-HVDC inverter station, commutation failure can lead to the wrong operation of traditional protection. To solve the problem, this paper proposes a fast protection scheme using transient information from one en
In this paper, the generator angle stability of several active power control schemes of a voltage-source converter (VSC)-based high-voltage DC (HVDC) is evaluated for two interconnected AC systems. Excluding frequency control, there has been no detailed analysis of interconnected grids depending upo...