Emulator apparatus for microgrid testing and design
| DWPI Title: Emulator for use with energy bus of microgrid for emulating e.g. batteries, has emulator circuitry altering current of emulator circuitry that emulates resistance and inductance of load through feedback control of current |
| 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. |
| Use: Emulator for use with an energy bus of a microgrid for emulating selectable energy storage devices e.g. batteries, capacitor banks and flywheels, with a computing device i.e. distributed system. |
| Advantage: The apparatus can facilitate balancing voltage on the bus to assure that loads in the microgrid receive requested energy, so that storage devices are properly operated to consume surplus energy and discharge energy when the variable source outputs deficient energy and consumers can simply request power and the supplier ensures that the requested power is available to the consumer. |
| Novelty: The apparatus has an emulator circuitry (114) for emulating desirable variable load i.e. three-phase load, of a microgrid. The emulator circuitry alters resistance (Ract) and inductance (Ldc) to predetermined resistance and inductance to emulate the desirable variable load responsive to an interface receiving the program instructions with a set of switches (620) selectively activated as a function of the program instructions to cause the emulator circuitry to emulate the desirable alteration in resistance and inductance in accordance with the program instructions. The emulator circuitry alters current (iLdc) of the emulator circuitry that emulates resistance and the inductance of a load through feedback control of the current such that a predetermined controlled current-to-voltage relationship is established to emulate the desirable resistance and inductance. |
| Filed: 10/24/2012 |
| Application Number: US13659822A |
| Tech ID: SD 12165.0 |
| This invention was made with Government support under Contract No. DE-NA0003525 awarded by the United States Department of Energy/National Nuclear Security Administration. The Government has certain rights in the invention. |
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