As for the access of AC cable to the power grid for the offshore wind power

since the charging power of the cable is big and in case of the access cable exceeds certain distance

they may cause difficulty in controlling the voltage and carrying capacity of the offshore wind power project and its grid connection point. In view of the above problems

the reactive power configuration method that the offshore wind power is accessed to power transmission and distribution project via AC submarine cables is proposed. The method can determine the preliminary reactive power configuration scheme. Then

the current carrying capacity of the submarine cables and the voltage distribution along the line are analyzed under different schemes.Finally

the feasibility of the preliminary reactive power configuration scheme is verified in combination with the voltage fluctuation of the access point under different access powers.