Abstract
In this paper, the optimal sitting and sizing of photovoltaic (PV) based distributed generator (DG) and distribution static synchronous compensator (DSTATCOM) are assigned separately and simultaneously under multi-load levels in radial distribution grid. Grey wolf optimizer (GWO) is an efficient optimization technique which is applied for solving the allocation problem of PV based DG and DSTATCOM in standard IEEE 85 bus distribution system. Six load levels are considered including 25%, 50%, 75%, 100%, 125 % and 150% of rated loading for power loss minimization. Encourage results are obtained with inclusion of PV based DG or DSTATCOM in addition of that the superior case are captured with inclusion of PV units along with DSTATCOM in terms of the power losses minimization. Moreover, the simulation results verify the applicability and efficiency of GWO technique for solving the allocation problem of PV and DTSTACOM
Highlights
The load requirements are increased continuously in power system which leads the transmission lines be congested and the electrical systems suffer from poor power quality
The influences of insertion the PV and DSTATCOM in this network are investigated in terms of the power quality and power loss where PV based distributed generator (DG) and DSTATCOM under multi load ranges from 25% to 150% of the rated load
Grey wolf optimizer (GWO) is applied for determining the optimal ratings and sizes of PV based DG and DSTATCOM in 85-bus system
Summary
The load requirements are increased continuously in power system which leads the transmission lines be congested and the electrical systems suffer from poor power quality. Flexible AC transmission systems (FACTS) devices and distributed generators (DGs) are included into the electric power system to enhance system power quality, loadability, security, as well as for cost consideration. Different members of distributed flexible AC transmission systems (DFACTS) have been embedded in radial distribution grids (RDGs) such as; distributed static compensator (DSTATCOM), distribution static var compensator (D-SVC) and unified power quality conditioner (UPQC). GWO is implemented to find the optimal sizing and placement of PV based DG and DSTATCOMs in IEEE 85-bus RDG. The influences of insertion the PV and DSTATCOM in this network are investigated in terms of the power quality and power loss where PV based DG and DSTATCOM under multi load ranges from 25% to 150% of the rated load.
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