Details

Autor(en) / Beteiligte

• Briz, F.
• Degner, M.W.
• Guerrero, J.M.
• Diez, A.B.

Titel

Temperature Estimation in Inverter Fed Machines Using High Frequency Carrier Signal Injection

Ist Teil von

• 2007 IEEE Industry Applications Annual Meeting, 2007, p.2030-2037

Ort / Verlag

IEEE

Erscheinungsjahr

2007

Quelle

IEEE Electronic Library (IEL)

Beschreibungen/Notizen

• Temperature monitoring using the injection of a high frequency, carrier signal voltage is proposed in this paper. The carrier signal voltage is used to estimate the transient impedance of the system, which is a function of the stator transient resistance, and therefore, the windings' temperature. The variation of the stator transient impedance's phase angle is used to track the temperature of the stator windings. The method can be implemented in standard, inverter-fed drives with no additional hardware, minimal computational requirements, and practically no interference with the regular operation of the drive.