Table 9.

Comparative analysis of the proposed R-EAPC strategy with recent Post-2020 Literature.

Study (reference)	Active power control	Reactive power/voltage support	Apparent power constraint/oversizing	Stability assessment	Key limitation
Enhanced Active Power Control using INC-MPPT4	Uses INC-based APC with improved MPPT tracking	No VAR loop; voltage regulation absent	Capability limits not considered; oversizing not analysed	Basic small-signal discussion	Does not coordinate AP and VAR; limited grid-support
STATCOM-Based VAR Support in PV Systems5	Standard MPPT (P&O/INC)	Strong reactive-power compensation and voltage support	No inverter S-limit or oversizing involvement	No CPF or Lyapunov analysis	Treats reactive support separately; no APC–VAR integration
Coordinated Control of PV Inverters & VSCs7	Coordinated power control in LV distribution networks	Provides voltage and power-sharing support	Apparent-power capability discussed but oversizing not implemented	Small-signal / eigenvalues	Does not combine MPPT-based APC with dynamic VAR and oversizing
Proposed R-EAPC	INC-based APC integrated in dq-frame	Fast q-axis reactive regulator with PCC-voltage loop	Explicit S-limit + analytical 10% oversizing benefit	Eigenvalue + Bode + CPF + Lyapunov	Unified A–Q control, capability limit enforcement, and oversizing—absent in previous works