A DISTRIBUTED OPTIMAL POWER FLOW ALGORITHM

In this paper, we propose a distributed computational algorithm for solving the distributed optimal power flow problem under deregulated environment. Except for the data of the self-subsystem, the proposed distributed algorithm requires only the data of the boundary buses of the connecting subsystems. Therefore, it is easily implemented in a computer network. We have tested the proposed distributed algorithm on the IEEE 118-bus system, which is arbitrarily partitioned into four subsystems. The test results demonstrate the convergence and the computational efficiency of the proposed distributed algorithm. KEY WORDS Distributed optimal power flow, distributed computation, nonlinear programming, power deregulation. 1