A novel approach based on the particle swarm optimisation (PSO) technique is proposed for
the transient-stability constrained optimal power flow (TSCOPF) problem. Optimal power
flow (OPF) with transient-stability constraints considered is formulated as an extended OPF
with additional rotor angle inequality constraints. For this nonlinear optimisation problem, the
objective function is defined as minimising the total fuel cost of the system. The proposed
PSO-based approach is demonstrated and compared with conventional OPF as well as a …

Stability is an important constraint in power system operation; the transient stability
constrained optimal power flow (TSCOPF) has a considerable attention in recent years. The
solution obtained from the conventional optimal power flow (OPF), which considers only the
static constraints, does not guarantee transient stability in the system against possible
contingencies such as line fault. In this paper, a novel OPF is proposed by adding the
transient stability constraints into the conventional OPF problem using the improved particle …