交流调速直接转矩控制技术研究综述  

Present Status and Future Development of AC Speed Regulating Direct Torque Control

作　　者：王敏[1] 陈芬[1] 李想[1] 潘永春[1] 

机构地区：[1]河海大学能源与电气学院,江苏南京211100

出　　处：《自动化与仪器仪表》2016年第1期1-3,6,共4页Automation & Instrumentation

基　　金：中央高校基本科研业务项目(2012B05914);教育部海外名师项目(MS2012HHDX021)

摘　　要：近年来,交流调速技术发展迅速,尤以80年代中期提出的交流电动机直接转矩控制技术为代表,控制思想新颖,系统结构简单明了,动、静态性能优良。本文从典型直接转矩控制系统的三个主要环节:检测与计算环节、调节器环节、开关状态选择环节(包括扇区选择),分析了各个环节的发展现状。其应用领域也由异步电动机发展到了同步电动机,特别是永磁同步电动机变频调速系统已成为研究热点。目前已经有很多方法实现交流调速系统的直接转矩控制,并取得良好的控制效果,但仍存在控制精度、复杂性和可靠性之间的矛盾,低速性能的提高等问题。今后,交流调速直接转矩控制技术的研究重点在于提高转速、磁链、转矩等参数估计精度的同时改进控制性能,增强系统抗参数变化、抗噪声干扰的鲁棒性,降低系统的复杂性,追求简单性和可靠性,智能化方法的应用与经典和现代控制理论的集成,即多学科技术的交叉与应用已经成为未来直接转矩控制技术的发展趋势。In recent years,AC speed regulation technology is developing rapidly. Since 1980 s,AC motor direct torque control technology has innovative control thinking,and the structure is simple and clear,good dynamic and static performance. We can make this system into three parts: detection and calculation,regulator,choice of switch state links( including sector selection),and analyze the development status of these parts. The application is also from the original asynchronous motor to the synchronous motor. There are many methods to realize the direct torque control and achieve good control effects,but still have some problems such as control precision,the contradiction between complexity and reliability,the improvement of the performance of the low speed and so on. We should emphasis on estimation precision of the speed,torque,and flux linkage of parameter,improve the control performance,and enhance the system robustness against noise and parameter changes,reduce the complexity of the system,the pursuit of simplicity and reliability of the application of intelligent method and integration of classical and modern control theory. The cross and application of multidisciplinary technology has become a development trend of the direct torque control technology.

关 键 词：交流调速 直接转矩控制(DTC) 智能控制 永磁同步电动机 

分 类 号：TM921.5[电气工程—电力电子与电力传动]