Abnormality determination device for power conversion device and abnormality determination method for power conversion device

JPWO2025154208A5Active Publication Date: 2025-12-16TMEIC CORP (100 00)
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Patent Information

Application Number
JP2024523923
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Filing Date
2024-01-17
Publication Date
2025-12-16
Estimated Expiration
2044-01-17

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Abstract

The abnormality determination device (500) for a power conversion device is an abnormality determination device (500) for a power conversion device (600) having an inverter (16) and an LC filter (22) arranged downstream of the inverter (16), and includes a simulation calculation circuit (300) that simulates ideal characteristics of a reactor (L2) and a capacitor (C2) of the LC filter (22), and an abnormality detection circuit (400) that detects an abnormality in the power conversion device (600) based on the calculation result of the simulation calculation circuit (300), the magnitude of the current output from the inverter (16), and the magnitude of the voltage across the capacitor (C2).
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