The incorporation of HVDC equations in optimal power flow methods using sequential quadratic programming techniques

Abstract

The author presents the formulation and solution method of an optimal power flow problem using a sequential quadratic programming technique for an AC-DC power system with one or more multiterminal DC systems. The algorithm developed has been tested on a number of sample AC-DC systems. The convergence characteristics, insofar as the number of the major iteration goes, is comparable with the Newton-Raphson approach. The economic advantage of being able to coordinate the DC system power transfers is illustrated by numerical examples based on the modified IEEE 30 and 118 bus systems.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">&gt;</ETX>