A Solution of Total Transfer Capability Using Transient Stability Constrained Optimal Power Flow

Abstract

In nowadays deregulated market, available transfer capability (ATC) is a measure of the network capability for further commercial activity above the already committed uses. This paper deals with the development of an interior point nonlinear programming methodology for evaluating dynamic ATC. By establishing a novel method for integrating transient stability constraints into conventional steady-state ATC problem, we have proposed the dynamic ATC solution methodology using a transient stability constrained OPF (TSCOPF). In actual power system, we have to consider several controller/modeling to evaluate dynamic stability to simulate real system. We have proposed unbalanced three phase model for transmission lines in our TSCOPF. In the proposed method, we can consider any fault sequence on transmission lines and buses. In this paper, we propose an extension of transient stability constrained OPF with consideration of the generator shedding after the fault. The proposed TSCOPF method will be applied to IEEJ EAST10 test system to demonstrate the effectiveness of generator shedding.