Energy storage system
The power storage system addresses power fluctuations and oxide film removal by using a CR circuit and discharge circuit to manage current and voltage, ensuring efficient operation and reduced downtime.
JP2026084921APending Publication Date: 2026-05-22YAZAKI CORP
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Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- YAZAKI CORP
- Filing Date
- 2024-11-12
- Publication Date
- 2026-05-22
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Figure 2026084921000001_ABST
Abstract
This system allows for the removal of oxide film from the switch contacts in the bypass section while suppressing fluctuations in input / output power between the energy storage system and the external system, and also shortens the downtime of the energy storage string. [Solution] The energy storage system 1 comprises a power line PL connecting a plurality of battery modules M1 to Mn in series, a circuit breaker S1 connected in series with the battery modules M1 to Mn, a bypass switch S2 connected in parallel with the battery modules M1 to Mn and the circuit breaker S1, a plurality of bypass units B1 to Bn provided for each battery module M1 to Mn, a CR circuit 10 connecting the positive and negative sides of the power line PL with a capacitor C and a first resistor R1 connected in series, and a discharge circuit 11 connected in parallel with the capacitor C with a second resistor R2 and a discharge switch St connected in series.
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