Performance Assessment of Double Line HVAC Circuit versus Bipolar HVDC Link in Presence of Large-Scale Solar Plant

This paper presents a comparative study between the bipolar HVDC link and the double line HVAC circuit in the presence of a 1000 MW solar generating unit. The influence of the penetration of renewable power on system losses, voltage and transient stability is investigated. The research is performed on the Iraqi super-grid considering three types of faults are examined namely the line and the bus disturbances, and the line trip. The simulations were carried out for different transmission line length using the PSS/E software. The results showed that the bipolar HVDC link presents better results compared to the double line HVAC circuit in terms of stability, voltage improvement and power losses minimization.