Method and apparatus for controlling a hybrid energy storage system
US10483758B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 8, 2014 |
| Grant date | Nov 19, 2019 |
| Priority date | — |
| Expiry date | Jul 31, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J7/345
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A control apparatus and corresponding control method use per-unit filtering in a plurality of power-sharing controllers, to obtain a power-sharing command signal for respective ones among a plurality of different energy storage units in a hybrid energy storage system. The hybrid energy storage system includes two or more types of energy storage units and the power-sharing command signal for each energy storage unit is obtained by filtering an input signal using a filter having a filter response that is tailored to the energy storage characteristics of the energy storage unit. The input signal reflects load variations on the electrical grid and may be locally generated or provided by a remote node. While the power-sharing control loops used for each energy storage unit advantageously may be the same in terms of architecture and implementation, each loop uses tailored, dedicated filtering and, possibly, individualized values of one or more other control parameters.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.