Higher demands on the modern variable speed drives, push the operating conditions always on the edge, where more accurate information about various motor point temperatures are required. With the use of a multi-point continuous motor temperature measurement and a controller embedded motor thermal model, the actual temperature in various hard to access points of the machine can be estimated with reasonable accuracy. Intending to minimise wiring, the existing two wire over temperature switch connection between motor and drive is used as a physical layer for MicroLAN and over this lines, temperature sensors power supply and data are transmitted.
Continuous Multipoint Online Temperature Measurement in PM Motors
BOLOGNANI, SILVERIO;
2002
Abstract
Higher demands on the modern variable speed drives, push the operating conditions always on the edge, where more accurate information about various motor point temperatures are required. With the use of a multi-point continuous motor temperature measurement and a controller embedded motor thermal model, the actual temperature in various hard to access points of the machine can be estimated with reasonable accuracy. Intending to minimise wiring, the existing two wire over temperature switch connection between motor and drive is used as a physical layer for MicroLAN and over this lines, temperature sensors power supply and data are transmitted.
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