Method for stabilizing an autonomous microgrid including an active load

A non-transitory computer-readable medium storing instructions which when executed by a computer cause the computer to perform:

• measuring output signals of an autonomous microgrid,
• wherein the autonomous microgrid includes:
• a plurality of inverter-based distributed generations, each of the inverter-based distributed generation further including a corresponding power droop controller configured to share an output power of the respective plurality of inverter-based distribution generations in the autonomous microgrid, a corresponding voltage controller configured to control an output voltage of the respective inverted-based distributed generation, and a corresponding current controller configured to control an output current of the respective inverter-based distributed generation;
• and
• a constant power load (CPL) coupled to one of the plurality of inverted-based distributed generations, the CPL constant power load including a phase locked loop (PLL) configured to synchronize the constant power load with the autonomous microgrid, a DC voltage controller configured to control a DC voltage of the constant power load, and an AC current controller configured to control an AC current of the constant power load;
• and
• defining a plurality of system parameters of the autonomous microgrid based on a weighted objective function that is calculated through on a particle swarm optimization, wherein the PSO minimize the weighted objective function to obtain the defined system parameters so that the plurality of inverter-based distributed generations injects a required active power and a dc voltage of the active load close to a reference dc voltage.