{
  "$type": "site.standard.document",
  "description": "Disclosed are a protection apparatus and method for estimating thermal stress of a power conversion device and preventing damage thereto using a virtual sensor based on a reduced-order model. Thermal stress applied to a power conversion device in a vehicle is estimated using virtual sensor software…",
  "path": "/patents/1382846",
  "publishedAt": "2026-05-14T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H02M1/327",
    "Hyundai Motor Company"
  ],
  "textContent": "Disclosed are a protection apparatus and method for estimating thermal stress of a power conversion device and preventing damage thereto using a virtual sensor based on a reduced-order model. Thermal stress applied to a power conversion device in a vehicle is estimated using virtual sensor software without the need for any hardware sensors. When the estimated thermal stress reaches a threshold value, a control signal is output to prevent damage to the power conversion device, which is also used for device condition monitoring and failure prediction.",
  "title": "APPARATUS AND METHOD FOR PROTECTING POWER CONVERSION DEVICE"
}