Application of Enhanced Sine Cosine Algorithm for Optimal Allocation of PV- DG and DSTATCOM in Distribution Systems

The allocation and optimization of renewable energy and shunt compensators remains achallenging task to enhance the performance of system efficiently. This paper suggests a newmethodology to determine the optimal placement and ratings of the Photovoltaic based distributedgenerator (PV- DG) and Distribution Static compensator (DSTATCOM) in radial distribution systems.An Enhanced Sine cosine algorithm (ESCA) is applied to solve the allocation problem of the PV- DGand DSTATCOM. The ESCA is proposed for improvement the searching capabilities of theconventional Sine Cosine Algorithm (SCA) by using the Levy Flight Distribution (LFD) and adaptiveoperator. to demonstrates effectiveness of the proposed algorithm, it has been tested on IEEE 33 andIEEE 69 bus systems for loss minimization by PV-DG and the obtained results are compared with otheralgorithm. The ESCA is applied for optimal inclusion assigning the PV- DG and DSTATCOM for amulti-objective function which comprises of three objective functions including the power lossreduction, voltage profile improvement and voltage stability enhancement. The outcomes reveal to thatoptimal inclusion of the PV- DG and DSTATCOM can enhance the performance of the systemconsiderably. In addition of that the proposed algorithm is superior for solving the allocation problemcompared with the state-of-the-arts algorithms