Storage battery system and method for suppressing fluctuation in frequency of AC power system
US11973347B2 · kind B2 · utility
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20Claims
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Key dates
| Filing date | Mar 30, 2020 |
| Grant date | Apr 30, 2024 |
| Priority date | — |
| Expiry date | Aug 1, 2040 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY04S10/14
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A storage battery system includes a first storage battery unit. First storage battery unit includes a first converter that converts alternating current and direct current, a first storage battery, and a first controller that controls first converter, and first storage battery unit is interconnected to a system for supplying power. The first controller detects a frequency of the system, and controls first converter such that first storage battery outputs constant active power to the system on the basis of the frequency of the system falling below a first threshold value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.