Building energy storage system with multiple demand charge cost optimization
US10282796B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 12, 2017 |
| Grant date | May 7, 2019 |
| Priority date | — |
| Expiry date | Mar 12, 2037 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY04S10/50
- WIPO fieldIT methods for management
- WIPO sectorElectrical engineering
Abstract
An energy storage system includes a battery and an energy storage controller. The battery is configured to store electrical energy purchased from a utility and to discharge the stored electrical energy for use in satisfying a building energy load. The energy storage controller is configured to generate a cost function including multiple demand charges. Each of the demand charges corresponds to a demand charge period and defines a cost based on a maximum amount of the electrical energy purchased from the utility during any time step within the corresponding demand charge period. The controller is configured to modify the cost function by applying a demand charge mask to each of the multiple demand charges. The demand charge masks cause the controller to disregard the electrical energy purchased from the utility during any time steps that occur outside the corresponding demand charge period when calculating a value for the demand charge.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.