Power Flow Calculation Using Newton-Raphson Method in Rectangular Coordinates for Power Systems

In power systems, the Newton-Raphson method in rectangular coordinates is a widely adopted approach for power flow calculations. The MATLAB-implemented program provides an efficient platform for computational analysis and data testing. This article demonstrates the practical application of the rectangular coordinate Newton-Raphson power flow algorithm, supplemented with test datasets for immediate verification. The implementation features Jacobian matrix formulation with partial derivatives of active and reactive power equations, incorporating bus admittance matrix generation and iterative solution convergence checks. We further examine the method's advantages, including quadratic convergence characteristics and robustness in handling ill-conditioned systems, along with its applicability scope for various network configurations. Through this technical exploration, readers will gain comprehensive understanding of the algorithm's implementation methodology and computational efficiency in power system analysis.