Bloom Energy has been granted a patent for a method involving an inverter module that manages alternating current (AC) output to multiple loads. It includes provisions for handling fault conditions by either restoring AC output or disconnecting the inverter if the fault is not resolved within a specified recovery period. GlobalData’s report on Bloom Energy gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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According to GlobalData’s company profile on Bloom Energy, Polymer electrolyte fuel cells was a key innovation area identified from patents. Bloom Energy's grant share as of July 2024 was 40%. Grant share is based on the ratio of number of grants to total number of patents.
Inverter module fault management for alternating current output
The patent US12068699B2 outlines a method and system for managing fault conditions in an inverter module connected to multiple loads. The method involves outputting an alternating current (AC) waveform to these loads and, in the event of a fault condition—such as a short circuit or current inrush—outputting a fault waveform specifically to the affected load. The system is designed to either continue supplying AC power to the loads if the fault is resolved within a designated recovery period or to disconnect the inverter from the loads if the fault persists beyond this timeframe. The recovery period is defined to range from 1 to 5 seconds, and the fault waveform includes a sequence of trip currents at varying levels to manage the fault condition effectively.
Additionally, the system incorporates overcurrent protection devices (OCPDs) that are connected to the inverter module and the respective loads. These devices can include circuit breakers or fuses, which are triggered by the fault waveform to disconnect the affected load when necessary. The controller within the system is responsible for monitoring the AC waveform's magnitude to detect faults and can activate an energy reduction maintenance setting (ERMS) mode in response to specific signals, such as the opening of an access panel. This mode allows for rapid disconnection of the inverter from the loads upon detecting a fault, enhancing safety and operational efficiency. Overall, the patent presents a structured approach to fault management in inverter systems, ensuring reliable operation while minimizing risks associated with electrical faults.
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GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.
