On Efficient Implementation of Interior-Point Based Optimal Power Flows in Rectangular Coordinates

This paper deals with the efficient computational implementation of nonlinear optimal power flows representing complex bus voltages in rectangular coordinates and solution by primal-dual interior-point methods. Emphasis is given to the initialization of variables, the efficient assembling of Jacobian and Hessian matrices, sparse data structures, solution of the linear systems, and choice and setting of algorithm parameters. Although the discussions are based on the implementation of the minimum active power losses problem, they can be extended to several other optimal power flow models