Inclusion of V2G and Power System Stabilizer for Residential Microgrid Applications

The concept of vehicle-to-grid (V2G) has been applied to residential microgrids (MGs) to play an essential role in regulating terminal voltage and system frequency. For this purpose, a power system stabilizer (PSS) has been selected, which is added to the excitatory system to enhance the dynamic and transient stability performance and to offer damping characteristics adequate for V2G regulation. In this work, three interconnected areas powered by diesel generators are investigated to measure the effectiveness of the proposed V2G scheme with PID-PSS controller that is adapted in a direct manner compared to the conventional MGs without the V2G scheme. The studied islanded residential MGs are consisting of diesel generators that are used as main generation sources, residential loads, and EVs aggregator. The performance of the proposed scheme is examined under the effect of a $3-\emptyset$ short circuit fault between areas 1 and 3. The final findings emphasize the superiority of using V2G with adaptive PSS compared to the conventional system without both PSS and the inclusion of V2G in terms of over/undershoot and settling time ‘stabilizing faster’.