感应电机直接转矩控制的新型自适应磁滞带宽控制

Q2 Energy
Arkan A. Kadum
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引用次数: 4

摘要

本文提出了一种新的自适应滞环控制方法,用于感应电动机(IM)驱动器的直接转矩控制(DTC),该方法具有用于生成PWM信号的开关表。恒滞后直接转矩控制(CHB-DTC)方法利用转矩和定子磁通误差生成定子电压参考和频率矢量,用于控制三相异步电动机。CHB-DTC提供了更好的转矩瞬态性能,但它具有较大的稳态波纹。为了减少CHB-DTC控制感应电机驱动中的转矩和定子电流纹波,提出了一种新的自适应磁滞带控制(AHB)方法,其中磁滞带随着定子磁通和转矩误差的变化而实时自适应,而不是固定带宽。利用Matlab/Simulink对经典的CHB-DTC方法和所提出的自适应滞环带DTC(AHB-DTC)馈电三异步电动机进行了仿真。在宽速度范围内不同运行条件下的仿真结果证明了该方案的有效性、有效性和可行性。测量结果表明,与CHB-DTC相比,新的AHB-DTC技术显著降低了转矩脉动,并且在升档或降档时具有更好的速度响应。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
New adaptive hysteresis band width control for direct torque control of induction machine drives
This paper presents a new adaptive hysteresis band control approach used in direct torque control (DTC) of the induction motor (IM) drives with the switching tables for the generation of PWM signals. Constant Hysteresis Direct torque control (CHB-DTC) method used the torque and stator flux errors to generate the stator voltage reference and frequency vectors for controlling the three-phase induction motor. The CHB-DTC gives better torque transient performance but it has large steady state ripples. To reduce torque and stator current ripples in CHB-DTC controlled induction motor drives a new adaptive hysteresis band control (AHB) approach is proposed, where the hysteresis band is adapted in real time with the stator flux and torque errors variation, instead of fixed bandwidth. Both classical CHB-DTC method and the proposed adaptive hysteresis band DTC (AHB-DTC) fed three induction motor have been simulated using Matlab/Simulink. The simulation results at different operating conditions over a wide speed range demonstrate the validity, effectiveness, and feasibility of the proposed scheme. The measurements showed that torque ripples were significantly decrease with the new AHB-DTC technique and better speed response in step up or down compared to the CHB-DTC.
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来源期刊
International Journal of Power Electronics and Drive Systems
International Journal of Power Electronics and Drive Systems Energy-Energy Engineering and Power Technology
CiteScore
3.50
自引率
0.00%
发文量
0
期刊介绍: International Journal of Power Electronics and Drive Systems (IJPEDS) is the official publication of the Institute of Advanced Engineering and Science (IAES). The journal is open to submission from scholars and experts in the wide areas of power electronics and electrical drive systems from the global world. The scope of the journal includes all issues in the field of Power Electronics and drive systems. Included are techniques for advanced power semiconductor devices, control in power electronics, low and high power converters (inverters, converters, controlled and uncontrolled rectifiers), Control algorithms and techniques applied to power electronics, electromagnetic and thermal performance of electronic power converters and inverters, power quality and utility applications, renewable energy, electric machines, modelling, simulation, analysis, design and implementations of the application of power circuit components (power semiconductors, inductors, high frequency transformers, capacitors), EMI/EMC considerations, power devices and components, sensors, integration and packaging, applications in motor drives, wind energy systems, solar, battery chargers, UPS and hybrid systems and other applications.
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