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Battery energy storage system with arc flash protection, energy conversion system and protection method

  • US 10,020,650 B2
  • Filed: 02/23/2015
  • Issued: 07/10/2018
  • Est. Priority Date: 02/24/2014
  • Status: Active Grant
First Claim
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1. A battery energy storage system, comprising:

  • a battery assembly for storing and providing energy, wherein the battery assembly is rechargeable; and

    a protection system comprising an arc flash protection device for protection against hazards from arc flashes, wherein the arc flash protection device is arranged;

    to sense a battery current provided by the battery arrangement and to compare it with a predefined maximum current threshold,to sense a voltage provided by the battery assembly and to compare it with a predefined minimum voltage threshold, andif the sensed battery current is greater than the maximum current threshold and/or the sensed battery voltage is smaller than the minimum voltage threshold, to determine that arc flash conditions are present and to initiate protective measures to prevent further operation of the battery assembly.

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