Table 2 Comparison of the proposed hybrid sliding mode H∞ control with other techniques on a qualitative basis.
Refs. | Objectives | Voltage regulation | Power sharing | Disturbance rejection | Stability under CPL | Implementation complexity | Tracking speed | Power efficiency |
|---|---|---|---|---|---|---|---|---|
Proposed | Optimize voltage, power, disturbance, and stability | Very high | High | Very high | High | Low | Fast | Very high |
Review of hierarchical control strategies | Good | Good | Moderate | Moderate | Moderate | Moderate | Moderate | |
Secondary control for voltage and load sharing | Good | Good | High | Good | Moderate | High | High | |
Challenges in CPLs in droop-controlled DC MGs | Moderate | Moderate | High | Low | High | Low | Low | |
Novel secondary optimal control for storage | High | High | High | High | Moderate | Moderate | High | |
Distributed secondary control via current derivatives | High | High | High | High | High | High | High | |
Enhanced droop control method | Moderate | High | High | Moderate | Moderate | High | Moderate | |
Decentralized primary and secondary control for DC MGs | High | High | High | High | Moderate | High | High |
