Microgrid control system and method thereof
AssigneeABB Power Grids Switzerland AG
InventorRitwik Majumder
Life of this patent
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Abstract
A microgrid arrangement includes a decentralized microgrid control system, a first microgrid and a second microgrid separated by a microgrid breaker. The first and second microgrids each include a number of assets, each asset being associated with a respective microgrid controller (MGC) of the microgrid control system. The control system can be operated by determining that the microgrid breaker is open, assigning a first MGC in the first microgrid to a first group of MGCs in the first microgrid, broadcasting information from the first MGC to other MGCs in the first group, determining that the microgrid breaker is closed, assigning the first MGC to a second group of MGCs in both the first microgrid and the second microgrid, and broadcasting information from the first MGC to MGCs in the second group.
Claims20
A method of operating a microgrid control system to control a microgrid arrangement comprising a first microgrid and a second microgrid separated by a microgrid breaker, the first and second microgrids each comprising a plurality of assets, each asset being associated with a respective microgrid controller (MGC) of the microgrid control system, the method comprising:
- determining that the microgrid breaker is open;
- based on the determination that the microgrid breaker is open, for at least one MGC of the MGCs in the first microgrid, assigning the MGC to a first group of MGCs in the first microgrid;
- broadcasting information from the MGC to other MGCs in the first group;
- determining that the microgrid breaker is closed;
- based on the determination that the microgrid breaker is closed, assigning the MGC to a second group of MGCs in both the first microgrid and the second microgrid;
- and
- broadcasting information from the MGC to MGCs in the second group.
A microgrid control system for a microgrid arrangement comprising at least a first microgrid and a second microgrid separated by a microgrid breaker and each comprising a plurality of assets, the microgrid control system comprising:
- a respective microgrid controller (MGC) configured for being associated with each of the assets;
- processing circuitry;
- and
- data storage storing instructions executable by the processing circuitry to control the control system to:
- determine that the microgrid breaker is open;
- based on the determination that the microgrid breaker is open, assign a first MGC in the first microgrid to a first group of MGCs in the first microgrid;
- cause the first MGC to broadcast information to the other MGCs in the first group;
- determine that the microgrid breaker is closed;
- based on the determination that the microgrid breaker is closed, assign the first MGC to a second group of MGCs in both the first microgrid and the second microgrid;
- and
- cause the first MGC to broadcast information to the MGCs in the second group.
A microgrid arrangement comprising:
- a first microgrid;
- a second microgrid, wherein the first and second microgrids each comprise a plurality of assets;
- a microgrid breaker separating the first microgrid and the second microgrid;
- and
- a decentralized microgrid control system that includes a plurality of microgrid controllers (MGCs), each MGC being associated with a respective asset, wherein the microgrid control system is configured to:
- determine that the microgrid breaker is open;
- based on the determination that the microgrid breaker is open, assign the MGC in the first microgrid to a first group of MGCs in the first microgrid;
- broadcast information from the first MGC to other MGCs in the first group;
- determine that the microgrid breaker is closed;
- based on the determination that the microgrid breaker is closed, assign the first MGC to a second group of MGCs in both the first microgrid and the second microgrid;
- and
- broadcast information from the first MGC to MGCs in the second group.
Dependencies are inferred from the claim text.