Optimal location and sizing of DG units to improve the voltage stability in the distribution system using Particle Swarm Optimization Algorithm with Time Varying Acceleration Coefficients

The introduction of distributed generation unit in distributed system improves the voltage profile and reduces the system losses. Optimal placement and sizing of Distributed Generation units plays a major role in reducing system losses and improving voltage profile .The different technical issues are combined using weighting coefficients and solved under various operating constraints using Particle Swarm Optimization with Time ? Varying Acceleration Coefficient (PSO-TAC). In general Distributed generation is defined as generation of electricity within distributed networks. The distributed capacities minimize the requirement for over dimensioning of transmission and distribution system. If the value of the voltage stability index is increased system is increased significantly, then it is possible to operate the system away from voltage instability condition .The Particle Swarm optimization can be used to find the best location of Distributed Generation units considering voltage stability and short circuit level in the distribution system. Citation: A.Marimuthu , K.L.N. College of Engineering; K.Gnanambal ,; R.Pooja Eswari ,; T.Pavithra ,. "Optimal location and sizing of DG units to improve the voltage stability in the distribution system using Particle Swarm Optimization Algorithm with Time Varying Acceleration Coefficients." Global Research and Development Journal For Engineering : 366 - 375.