Global optimal power flow over large-scale power transmission networks

Global Optimal Power Flow over Large-Scale Power Transmission Network

Optimal power flow (OPF) over power transmission networks poses challenging large-scale nonlinear optimization problems, which involve a large number of quadratic equality and indefinite quadratic inequality constraints. These computationally intractable constraints are often expressed by linear constraints plus matrix additional rank-one constraints on the outer products of the voltage vectors...

Parallel Computation of Large-Scale Dynamic Optimal Power Flow Problems

In this paper, a novel approach is presented to compute large Dynamic Optimal Power Flow (DOPF) problems in a distributed computing architecture, referred to as a Smart Grid Communication Middleware (SGCM) system. The time horizon is split into shorter time intervals using the SGCM system to solve one iteration of the Primal Dual Interior Point Method (PDIPM) for each sub-problem in parallel. T...

Global Optimization Methods for Optimal Power Flow and Transmission Switching Problems in Electric Power Systems

Hydrothermal Optimal Power Flow Using Continuation Method

The problem of optimal economic operation of hydrothermal electric power systems is solved using powerful continuation method. While in conventional approach, fixed generation voltages are used to avoid convergence problems, in the proposed algorithm, they are treated as variables so that better solutions can be obtained. The algorithm is tested for a typical 5-bus and 17-bus New Zealand networ...

Decentralized Interaction Estimators in Large Scale Power Systems with Neural Networks.