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双馈感应电机新型直接转矩控制技术 预览

A Novel Direct Torque Control Technique for Doubly-fed Induction Motor
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摘要 为了便于双馈感应电机直接转矩控制器的设计,建立了选装坐标系下的双馈感应电机的空间矢量数学模型和等值电路,推导了电磁转矩方程和转子磁链微分方程。通过分析转子电压空间矢量对转子磁链和电磁转矩的影响,提出了双馈感应电机直接转矩控制的一种改进方案:一是调整转子磁链扇区与转子电压矢量的相对位置;二是利用具有互补性的互差120°角的电压矢量作为主控矢量进行控制。通过大量的仿真结果分析,验证了所提控制算法的可行性和有效性。 To facilitate the design of the direct torque controller for doubly fed induction motor(DFIM),a space vector's mathematics model and equivalent circuit of the DFIM in the rotor coordinate were established,the expressions of the electromagnetic torque and rotor flux linkage were deduced. By analyzing the influence of rotor voltage space vector on rotor flux and electromagnetic torque,a novel direct torque control for DFIM was presented,which included two parts:the relative location of the rotor flux linkage and voltage was adjusted,and the combinational control way using two voltage vectors with 120° angle was used. Through many simulation results,the feasibility and effectiveness of the proposed control algorithm are verified.
作者 冯洪高 王成群 FENG Honggao;WANG Chengqun(School of Electricity and Engineering,Nanjing Institute of Railway Technology,Nanjing 210031,Jiangsu,China;School of Informatics Science and Technology,Zhejiang Sci-Tech University,Hangzhou 310018,Zhejiang,China)
出处 《电气传动》 北大核心 2019年第5期18-24,共7页 Electric Drive
基金 江苏省产教深度融合实训平台建设研究资助(2015JSJG014).
关键词 双馈感应电机 直接转矩控制 电压空间矢量 扇区 doubly fed induction motor(DFIM) direct torque control voltage space vector sector
作者简介 冯洪高(1969-)男,硕士,副教授,Email:fhgfyb@sohu.com.
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