In view of the status that no guideline on reactive power planning of submarine cable is available in China

a study on inductive reactive power compensation of submarine cable is made.The concentrated parameter model and load shape coefficient are adopted to establish modeling of submarine cable and end load.The economic and technical analysis is conducted in location

capacity

grouping scheme and compensation effect on reactive power compensation of submarine cable in accordance with related regulations in "Technical Principle of Reactive Power Compensation for Power System of State Grid of China"

mathematical models of reactive power planning on the objective function of minimizing costs of investment and network loss is established and a complete reactive power planning scheme of submarine cable is formed for instructing the actual project.Finally

the above plan is validated by taking 110 kV Shengsi interconnection project as actual case

and its effect is proved much perfect.