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Regenerative AC Drive

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Regenerative AC Drive

Variable Frequency Drive

Low Voltage Drive

Liquid Cooling Drive

Multi Module Drive

AC Servo Drive

Solar Pump Inverter

AC Soft Starter

Low Harmonic VFD

IP54 IP55 IP65 VFD

VFD For Dynamometer

Crane AC Drive

Passive Harmonic Filter
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solutions
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What is DTC (Direct Torque Control Technology)?

What is DTC (Direct Torque Control Technology)?

2025-05-16
Introduction to the Direct Torque Control Technology of Motor Control


The DTC technology originates from ABB and was patented in the mid-1980s. In 1995, ABB launched the first AC drive with direct torque control into the market, 
and at that time, DTC already held a leading position. Subsequently, with continuous improvements in aspects such as the computing power of processors, application programming, 
and communication interfaces, the performance of DTC has been continuously enhanced.

Control principle: DTC directly controls the magnetic flux and torque of the motor, 
unlike AC vector drives and DC drives which control the motor current indirectly. 
It regards the motor and the inverter as an integrated whole. By using the spatial voltage vector analysis method, 
it calculates the magnetic flux and torque in real time within the stator coordinate system. 
It directly controls the torque through a Pulse Width Modulation (PWM) inverter, 
avoiding thecomplex processes of stator current decoupling and vector transformation.

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