Power-Flow solution by a Complex Admittance-Matrix Model

The paper describes a newly developed algorithm for power flow solution based on a complex admittance matrix. The conciseness and close-to-reality iterative procedure make the method extremely attractive for self-made software implementation. The complex algorithm approach enables network connections, loads, generators, controlled bus voltages, including slack bus, to be considered in a single complex matrix. The power flow solution is achieved with iterations in complex form without the need of real/imaginary decomposition. The method has shown to have advantages over other traditional and available methods in terms of accuracy and convergence also in highly ill-conditioned cases. The cpu-time is comparable and sometimes competitive with those derived from Newton-Raphson methods.