Analysis and Verification of Compound SRFPI-LADRC Strategy for an Off-Grid Single-Phase Inverter

Table 1

Feature comparison of control schemes for single-phase inverters.

Comparative item	Deadbeat control	PR control	Repetitive control	MPC	SRFPI control
Hardware cost	High	Low	Low	Low	Low
Sensitivity of parameter variation	Strong	Medium	Low	Medium	Medium
Steady-state performance	Medium	Medium	Good	Medium	Good
Transient performance	Good	Medium	Worse	Good	Good
Virtual orthogonal signals	Not required	Not required	Not required	Not required	Required