Frequency Stability Enhancement of Microgrid Using Optimization Techniques-Based Adaptive Virtual Inertia Control

Table 7

Additional comparison between the existing control techniques from the pool of literature and the proposed control technique.

Reference	Type of control	Merits	Demerits
[36]	Droop control and VSG are proposed	It is easy to implement with low cost	Complexity in tuning parameters
[37]	Derivative control-based virtual inertia	It reduces overshoot response	Complex tuning due to trial-and-error method
[38]	Adaptive dynamics programming	Faster frequency response and reduced overshoot in d-axis	It ignores the q-axis making it incomplete due to reactive component
[39]	PID controller based (GWO)	Frequency control in multi-source single area	It did not include multiple areas and may not be applicable in microgrid
[40]	BFOA-tuned LQR-based VSG	Suppresses frequency fluctuations	Damping oscillations and RoCoF are not considered
Proposed	MPSO-based adaptive virtual inertia control	Faster frequency response with reduced overshoot and settling time and simple parameter tuning