Why we are using hvdc devices?

HVDC (High Voltage Direct Current) devices are used primarily for efficient long-distance transmission of electricity, as they can reduce power losses compared to AC systems. They enable the interconnection of asynchronous power grids, facilitating the integration of renewable energy sources and enhancing grid stability. HVDC systems also allow for better control of power flow and can improve the reliability of transmission networks. Additionally, they require less physical space and can reduce the environmental impact of power lines.