Capacitive Transfer Cable and Its Performance in Comparison with Conventional Solid Insulated Cable

With the development of offshore wind power, long-distance cable transmission is required to transmit fluctuating power. A Capacitive Transfer System (CTS) cable was proposed to decrease the line reactance to increase the transmission capability by the designed dielectric layers between strands and special connection of the strands. Because of the dielectric layers between strands, the paths of eddy currents between strands are blocked. In addition, the dielectric layers between strands work as a long capacitor to cancel the line inductive reactance. The geometry design of CTS IV L model is demonstrated in COMSOL. Finally, a set of laboratory tests are carried out to verify the reactive power compensation.