Switch systems for rechargeable power storage devices
US-2024195192-A1 · Jun 13, 2024 · US
Method and arrangement for balancing voltages of series connection of storage units for electrical energy
US8970063B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8970063-B2 |
| Application number | US-201113152014-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 2, 2011 |
| Priority date | Jun 4, 2010 |
| Publication date | Mar 3, 2015 |
| Grant date | Mar 3, 2015 |
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Abstract
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An arrangement which includes two or more energy storage units for electrical energy connected in series, and two or more balancing resistor units. Each balancing resistor unit is connected in parallel with one of the energy storage units. The arrangement also includes means for determining a voltage over all of the series-connected energy storage units and means for determining the energy storage unit voltages between poles of the energy storage units. One or more of the balancing resistor units include a base resistor unit and a control resistor unit connected in series and a switching device connected in parallel with the control resistor units. The arrangement further comprises means for determining reference voltages for the energy storage units based on the voltage over all of the series-connected capacitors and means for controlling the switching device to control the resistance of one or more of the balancing resistor units so that the energy storage unit voltage of each energy storage unit is maintained within a set range of the reference voltage for each energy storage unit.
First claim
Opening claim text (preview).
What is claimed is: 1. An arrangement for balancing voltages of a series connection of energy storage units for electrical energy, such as capacitors and rechargeable batteries, which include at least two energy storage units connected in series, at least two balancing resistor units, each balancing resistor unit connected in parallel with one of the energy storage units, means for determining a voltage (U tot ) over all of the series-connected energy storage, units and mean…
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Classifications
- H02J7/54Primary
Electricity · mapped topic
- H02J7/0016Primary
Electricity · mapped topic
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Frequently asked questions
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- What does patent US8970063B2 cover?
- An arrangement which includes two or more energy storage units for electrical energy connected in series, and two or more balancing resistor units. Each balancing resistor unit is connected in parallel with one of the energy storage units. The arrangement also includes means for determining a voltage over all of the series-connected energy storage units and means for determining the energy stor…
- Who is the assignee on this patent?
- Leppänen Ora Veli-Matti, Abb Oy
- What technology area does this patent fall under?
- Primary CPC classification H02J7/54. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Mar 03 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).