Full-electronic motor torque real-time detection circuit

The invention relates to a full-electronic motor torque real-time detection circuit; the full-electronic motor torque real-time detection circuit comprises motor three phase power supply wires U, V, W, further comprises a CPU, a voltage transformer, a current transformer, a peak value detector circu...

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Bibliographic Details
Main Authors YU YUANWEN, XU JIANWEI, MEI ZHIMING
Format Patent
LanguageEnglish
Published 13.05.2015
Subjects
MEASURING
MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER,MECHANICAL EFFICIENCY, OR FLUID PRESSURE
PHYSICS
TESTING
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Summary:The invention relates to a full-electronic motor torque real-time detection circuit; the full-electronic motor torque real-time detection circuit comprises motor three phase power supply wires U, V, W, further comprises a CPU, a voltage transformer, a current transformer, a peak value detector circuit, a current amplification and peak value detector circuit, a first zero passage comparator, a second zero passage comparator, and a relative coder; voltage, current, voltage and current phase angle, and motor rotation speed are detected at real time based on the circuit; and the torque is obtained by calculation at real time.
Bibliography:Application Number: CN2015118471