CONDITION MONITORING OF ELECTRONIC COMPONENTS IN ELECTRICAL POWER SYSTEMS

Abstract: a computer-implemented method is disclosed for monitoring a converter comprising a plurality of series-connected submodules or an energy storage system (ess) comprising a plurality of series-connected energy storage units (esus). each submodule or esu has electrical components arranged in a same circuit topology. the method comprises determining, for each electrical component in a group, a component value for an electrical characteristic, the group comprising a corresponding electrical component from each submodule/esu, in the plurality of submodules/esus, having a same position in the circuit topology of their respective submodule/esu. the method further comprises determining, for the group of electrical components, a group value for the electrical characteristic. the method then comprises determining a deviation of the component value from the group value, for each electrical component in the group, and determining a health status for an electrical component of the group based on the determined deviation.

Inventor(s): Mohsen ASOODAR, Christer DANIELSSON

CPC Classification: G01R19/2513 (using digital measurement techniques)

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