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| Parameters | IPC | PSC | MEC |
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| Load recommended | Linear | Nonlinear | Linear |
| Regains | Only magnitude of voltage and not phase angle jump | Both magnitude and phase angle jump of voltage | Only magnitude of voltage and not phase angle jump |
| Device ratings | Storage devices and injection transformers require minimum ratings | Storage devices and injection transformers require higher ratings | Required high-rated inverter |
| PLL performance at load condition | PLL must be synced with source voltage, and hence, it will not be locked during compensating | PLL must be synced with source voltage, PLL will be locked, and the phase angle will be restored as quickly as feasible if the failure occurs | PLL must be synced with source voltage, hence it will not be locked during compensating |
| Power requirement | Real and reactive power | Real and reactive power | Only reactive power |
| Distortion | Distortion is not minimized by phase jump | The method causes the lowest distortion | — |
| The magnitude of the injected voltage | Minimum | Maximum | Very high in comparison with other methods |
| Reliability | Causes transient and circulating current | Reliable for the protection of sensitive loads without transient or circulating current | Undesirable phase shifts are present during voltage sag compensation |
| Outcomes | Voltage disturbance is not fully eliminated | The voltage disturbance is eliminated although the phase angle jumps are different in every phase | Voltage disturbance is not fully eliminated |
| Compensation strength | Balanced and unbalanced voltage sag | Balanced and unbalanced voltage sag | — |
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