A flywheel energy storage converter fault diagnosis method, device and equipment
By acquiring and processing the output current of the flywheel energy storage converter, and utilizing amplitude per-unit scaling and phase characteristic matching methods, rapid diagnosis of IGBT short-circuit faults is achieved, solving the stability problem of traditional flywheel energy storage converters and improving system reliability.
CN116243073BActive Publication Date: 2026-07-03WEIKONG PHYSICAL ENERGY STORAGE R&D (SHENZHEN) CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- WEIKONG PHYSICAL ENERGY STORAGE R&D (SHENZHEN) CO LTD
- Filing Date
- 2022-12-08
- Publication Date
- 2026-07-03
Smart Images
Figure CN116243073B_ABST
Abstract
The application relates to the technical field of flywheel energy storage, in particular to a flywheel energy storage converter fault diagnosis method, device and equipment. The method comprises the following steps: obtaining an output current of a flywheel energy storage converter; pre-processing the output current to obtain a processing result; judging whether the energy storage converter has a fault according to the processing result; and positioning the fault position according to the processing result when it is determined that the energy storage converter has a fault. The output current of the flywheel energy storage converter is used for fault diagnosis, additional voltage sensors and auxiliary detection circuits are not needed, the algorithm is simple, and the reliability of the flywheel energy storage converter is effectively improved.
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