Enhancing power loss by optimal coordinated extensive CS operation during off-peak load at the distribution system

Abstract

Minimise dependency of energy from depleted non-renewable had pushed the usage of electric vehicle (EV). However, the presence of charging station (CS) may cause another impact such as higher power loss, especially involving uncoordinated CS. The impact becomes vital when the numbers of CS to charge the EV increased dramatically. From research, CS at residential usually operated during off-peak load. Furthermore, the variation of the charging pattern that difficult to perceive had added severe condition. Thus, the exploration of the mitigation method is necessary to avoid the stress at the existing distribution network. This paper suggests a coordinated method based on the power loss forecast throughout the charging time. The method will prioritise the buses based on power loss impact on the network, which later to determine the suitable numbers of CS operation. The approach considers customer satisfaction to charge the EV at a specific duration fully. Thus, to present the effectiveness of the approach, the analysis conducted using a suitable distribution system with residential block. The results show a positive outcome in enhancing distribution power loss without interrupt customer satisfaction. The method is suitable to deal with many CS that operates simultaneously during off-peak load.

Power loss mitigation and voltage profile improvement by optimizing distributed generation

“…However, despite the low carbon initiatives, renewable energy or DGs by the government may reflect the system performance [4]. Introduction DGs in power grids will impact the system reliability and security in power losses and voltage level [5][6]. Proper design of the massive solar DGs could bring positive influence and impact to the DG.…”

“…From past research, most distribution systems blended with DGs, generating the power without considering DG load profile and distribution system capability, and this such circumstance may lead to issues in power quality, especially in power losses and voltage profile [6][7]. Next, the existing connection and installation of DGs do not stress the mandatory technical requirement in generating power by optimizing power losses and voltage profile during daily operations of DGs.…”