Comparative study on radial topology 10kV AC and ±10kV DC power distribution network

Employing DC power distribution technology is an effective way to solve problems such as power supply capacity insufficiency, power quality and renewable generation connection that encountered by its AC counterpart. Present research situation on DC power distribution network is introduced. Comparative study is carried out on power supply capacity and operational efficiency for typical radial topology ±10kV DC and 10kV AC power distribution network. In regard to the economy of DC power distribution network, economic index in initial investment cost and total operational cost are analysed and compared with those of AC power distribution network.