Optimisation, benchmark testing and comparison of droop control variants in microgrids

Grid-forming inverter control is recently discussed for bulk power systems and already in use islanded microgrids. A common type the droop control. Numerous variants of basic have been proposed. However, there lack performance comparison literature. Their superiority has only demonstrated some specific microgrid scenarios. This work composes benchmark scenarios to assess compare applicability also their combination with virtual impedances under practical conditions. number topologies interaction synchronous machines are considered performance. Static criteria, such as steady-state sharing, well dynamic stability taken into account modal analysis. To guarantee a meaningful comparison, genetic algorithm tailored problem used optimise controller parameters each type. Results indicate that impedance more decisive effect on than variant. The outcome relevant analysis numerous contexts, optimal placement inverters or topology optimisation, where choice most suitable optimised parameter sets key.