Patent ID: 11929636
Assignee: MOSER ENERGY SYSTEMS
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A method of determining, using a stand-alone energy storage module (ESM) and an ESM controller, which of one or more energy sources is connected to the ESM,
wherein the ESM controller is configured to be in communication with one or more controllers associated with the one or more energy sources;
wherein the stand-alone ESM comprises a movable structure comprising:
batteries for receiving, storing, and distributing electrical power;
a bi-directional inverter that is in communication with the batteries and that is operable to convert direct current (DC) to alternating current (AC) and to convert AC to DC;
the ESM controller in communication with the bi-directional inverter and at least one of the batteries; and
electrical connections comprising:
an AC power output in communication with the bi-directional inverter and configured to provide power to an external load; and
AC power inputs in communication with the bi-directional inverter and configured to provide power to the batteries;
wherein the AC power inputs are adapted to be connected to the one or more energy sources, the one or more energy sources comprising at least one of:
 an engine-driven generator;
 a renewable energy source; or
 a utility grid or a multi-MW generating device;

wherein the method comprises:
signaling, using the ESM controller, a demand to the one or more energy sources for an increase in power;
monitoring, by the ESM controller, a response from the one or more energy source in response to the signaled demand;
wherein the response from the one or more energy source comprises:
at least one of a voltage, a current, and a frequency of the one or more energy sources as a result of the demand for additional power; or
at least one of a rate of change of the voltage, the current, and the frequency, of the one or more energy sources as a result of the demand for additional power; and

determining, by the ESM controller, which of the one or more energy sources is connected to the stand-alone ESM and responded to the demand for additional power, wherein:
when the response from the one or more energy sources is a steady output response without a droop curve, the one or more energy sources is identified as the renewable energy source;
when the response from the one or more energy sources is a non-steady output response that includes a droop curve, the one or more energy sources is identified as the engine-driven generator; and
when the response from the one or more energy sources includes a non-steady output response without a droop curve, then the one or more energy sources is identified as the utility grid or the multi-MW generating device.