The Modeling and Simulation of Converting HVAC to HVDC Grids: Impact and Feasibility

With increased integration of renewable energy resources into AC grids around the globe, new challenges are limiting possible expansion. This includes limited capacity of grid infrastructure and the intermittency nature of renewables. Thus, enhancing and improving AC grids is a persistent objective for system planners and operators. In this paper, improving overall system capacity and reliability by replacing AC transmission lines with high voltage DC (HVDC) links is proposed. A simulation model is designed and tested to verify the operation of an AC grid with integrated HVDC links. The Jordanian electrical AC grid is considered as a case study to implement the proposed approach. In addition, an economic analysis is done to prove approach feasibility.