Technical Review on Optimal Reactive Power Dispatch with FACTS Devices and Renewable Energy Sources

Abstract

AbstractThe economic accomplishment of power system mainly consists of true power dispatch and reactive power regulation. Reactive power dispatch dominates these days due to the increase of connecting more number of non-conventional energy sources into the grid. The dispatch of optimal reactive power dispatch (ORPD) treated the problem of optimization for tuning the variables corresponding to PV bus voltages and tap settings of transformers and the rating of reactive power reimbursing devices. With the increasing demand for reactive power, its optimization in the electrical grid is an essential feature to maintain voltages within desirable limits for system reliability. ORPD is a non-continuous, nonlinear, complex, non-convex, and the problem of multimodel which implicates distinct as well as uninterrupted variables. Therefore, its results involve divergent objective functions corresponding to minimization of true power losses, improving voltage outline, voltage stability improvement, transmission cost minimization, minimization of investment cost of FACTS device and emission minimization, etc. A grid involving predictable thermal generators, renewable energy sources and with FACTS devices has been widely studied for ORPD. This paper presents a technological review on three topics which are reviewed in chronological order, with different meta-heuristic techniques applied on different IEEE bus systems for the elucidation of ORPD problems.KeywordsFACTSMeta-heuristic methodsOptimization techniquesORPD