A Power Flow Calculation Approach for Distribution Network of Pure Power Cables

Since the resistance of a power cable R is much larger than its reactance X, the conventional power flow calculation methods are not suitable. This paper proposes a power flow calculation approach for distribution network of pure power cables. Then, a new type of P-Q decomposition method is developed along with the derivation of the corresponding Jacobian Matrix. The proposed approach is compared with the existing P-Q decomposition method and the Gauss-Seidel method for solving the power flow of a revised IEEE14 node grid. The results show that the proposed approach has the best performance, while the existing P-Q decomposition method cannot converge, and the Gauss-Seidel method would take much more iterations to converge to the result.