Methods for monitoring and controlling multiple microgrid systems

Patent metadata

Field	Value
Publication number	US-12494739-B2
Application number	US-202418653470-A
Country	US
Kind code	B2
Filing date	May 2, 2024
Priority date	Jul 21, 2020
Publication date	Dec 9, 2025
Grant date	Dec 9, 2025

Abstract

A method is directed to monitoring and controlling first and second second microgrid systems. The first microgrid system includes a plurality of first loads, a first photovoltaic power generation system, a first energy storage system, and a first energy control system. The second microgrid system includes a plurality of second loads, a second photovoltaic power generation system, a second energy storage system, and a second energy control system. The method includes transmitting, by the first energy control system, electronic data relating to the first microgrid system over a network to a computing device. The method includes transmitting, by the second energy control system, electronic data relating to the second microgrid system over the network to the computing device. The method includes calculating, by the computing device, a state of the electrical system based on the electronic data relating to the first and second microgrid systems.

First claim

What is claimed is:

1 . A method for monitoring an electrical system including a first microgrid system and a second microgrid system, the method comprising:
transmitting, by a first energy control system, electronic data relating to the first microgrid system over a network to a computing device; transmitting, by a second energy control system, electronic data relating to the second microgrid system over the network to the computing device; calculating, by the computing device, a state of the electrical system based on the electronic data relating to the first microgrid system and the electronic data relating to the second microgrid system; and causing synchronization, based on the electronic data, of each of the first microgrid system and the second microgrid system with a utility grid, wherein the synchronization includes synchronizing a phase of a power feed to each of the first microgrid system and the second microgrid system to split-phase AC that is compatible with the utility grid.

2 . The method of claim 1 , wherein the electronic data relating to the first microgrid system indicates a load consumption by a plurality of first loads and the electronic data relating to the second microgrid system indicates a load consumption by a plurality of second loads, and wherein the state of the electrical system indicates a total load consumption based on the load consumption by the plurality of first and second loads.

3 . The method of claim 1 , wherein the electronic data relating to the first microgrid system indicates a power output by a first photovoltaic (PV) power generation system and the electronic data relating to the second microgrid system indicates a power output by a second PV power generation system, and wherein the state of the electrical system indicates a total power output based on the power output of the first and second PV power generation systems.

4 . The method of claim 1 , wherein the electronic data relating to the first microgrid system indicates a current state of charge of a first energy storage system and the electronic data relating to the second microgrid system indicates a current state of charge of a second energy storage system, and wherein the state of the electrical system indicates a total state of charge based on the current state of charge of the first and second energy storage systems.

5 . The method of claim 1 , wherein the first energy control system is electrically coupled to a first feed circuit of a service panel electrically coupled to a utility grid, and the second energy control system is electrically coupled to the a second feed circuit of the service panel electrically coupled to the utility grid.

6 . The method of claim 5 , wherein the first microgrid system includes a first PV power generation system electrically coupled to the first energy control system and a first energy storage system electrically coupled to the first energy control system.

7 . The method of claim 6 , wherein the second microgrid system includes a second PV power generation system electrically coupled to the second energy control system and a second energy storage system electrically coupled to the second energy control system.

8 . The method of claim 1 , further comprising:
transmitting, by the computing device, electronic data indicating the state of the electrical system over the network to a user device.

9 . The method of claim 8 , wherein the computing device includes a server, and the user device includes at least one of a smartphone, a tablet computer, and a personal computer.

10 . The method of claim 8 , wherein the state of the electrical system includes at least one of:
a total load consumption based on a current load consumption of a plurality of first loads in the first microgrid system and a current load consumption of a plurality of second loads in the second microgrid system, a total power output based on a current power output of a first PV power generation system in the first microgrid system and a current power output of a second PV power generation system in the second microgrid system, and a total state of charge based on a current state of charge of a first energy storage system in the first microgrid system and a current state of charge of a second energy storage system in the second microgrid system.

11 . The method of claim 1 , further comprising:
receiving, by a user device, electronic data indicating the state of the electrical system from the computing device over the network.

12 . The method of claim 11 , further comprising:
displaying, by the user device, the state of the electrical system and the electronic data relating to first and second microgrid systems.

Assignees

• Unirac Inc

Inventors

• Narla Sandeep
• Risi Brian
• Lutkus Andrew

Classifications

• H02J2101/24

  Photovoltaics · CPC title

• H02J2105/12

  supplying households or buildings · CPC title

• H02J13/10

  characterised by displaying of information or by user interaction, e.g. supervisory control and data acquisition [SCADA] systems · CPC title

• H02S40/36

  characterised by special electrical interconnection means between two or more PV modules, e.g. electrical module-to-module connection · CPC title

• H02J3/001

  Arrangements for handling faults or abnormalities, e.g. emergencies or contingencies · CPC title