ACS6000系统中DTC算法的分析和仿真
Analysis and Simulation of DTC Algorithm in ACS6000 System

直接转矩控制(DTC)因其动态响应快、结构简单等优势，在交流电机高性能驱动领域备受关注。本文以ACS6000中同步电机(SM)控制系统为研究对象，深入分析了DTC算法的核心原理及其在转矩与磁链双闭环控制中的实现方法。基于MATLAB/Simulink平台构建了DTC系统的精细化仿真模型，重点解决电压–电流模型误差补偿、离散化开关逻辑设计及磁链观测器鲁棒性优化等关键问题。仿真结果表明，DTC算法在同步电机控制中可实现5 ms内转矩阶跃响应，验证了其在动态性能与抗扰能力上的优越性。本研究为ACS6000系统的优化维护提供了技术支撑。
Direct Torque Control (DTC) has attracted significant attention in the field of high-performance AC motor drives due to its fast dynamic response and simple structure. This paper takes the synchronous motor (SM) control system in ACS6000 as the research object, deeply analyzes the core principle of the DTC algorithm and its implementation method in the double closed-loop control of torque and flux linkage. Based on the MATLAB/Simulink platform, a refined simulation model of the DTC system is constructed, focusing on solving key issues such as voltage-current model error compensation, discrete switch logic design, and robustness optimization of the flux linkage observer. Simulation results show that the DTC algorithm can achieve a torque step response within 5ms in synchronous motor control, verifying its superiority in dynamic performance and disturbance rejection capability. This research provides technical support for the optimization and maintenance of the ACS6000 system.