|Abstract: ||An emulator apparatus that emulates entities included in a microgrid is
described herein. The emulator apparatus emulates a load with
time-varying inductance/resistance or an energy storage device or
combination of energy storage devices. The emulator apparatus is
electrically coupled to a system or device that is desirably
tested/maintained/designed. The emulator apparatus emulates a particular
device, and response of the system of device to the emulated device is
monitored for purposes of design, testing, or maintenance.