PMSM-DTC与SVM-PMSM-DTC仿真对比
SVM-DTC gives consistent switching frequency and the proposed ANFIS controller's structure manages the torque and stator flux error signals through the fuzzy deduction to get a yield that takes the type of space voltage vector. Simulation results accept the proposed evolutionary system with quick ...
Abstract: A method of PMSM DTC method based on giving priority to the torque control was proposed due to the problem that the reference voltage vector was difficult to compute in PMSM SVM-DTC method. The reference voltage vector of making torque change quickly was selected in the expanded ...
PMSM-DTC与SVM-PMSM-DTC仿真对比 来自百度文库 作者张强,韩如成,李宁摘要 针对传统PMSM-DTC存在的定子磁链以及转矩脉动问题,将空间矢量调制技术同永磁同步电机直接转矩控制相结合.在Matlab/Simulink以及SimPower System环境下,搭建传统PMSM-DTC仿真系统,同时设计并搭建S...
针对常规直接转矩控制中转矩和磁链控制存在较大偏差的现象,本文从永磁同步电机(PMSM)数学模型的分析出发,在有效估算定子磁链和转矩的基础上,提出了基于空间矢量脉宽调制(SVM)的直接转矩控制策略;同时,利用比例谐振控制器(PR)能在静止坐标系下实现对交流信号无静差跟踪这一特性,将其引入控制系统中可克服PI的不足。最终...
DTC-SVM for PMSM drive After calculation, the predictive controller determinates the polar Above equation consist of two terms, the first is the excitation coordinates of stator voltage command vector torque, which is produced by permanent magnet flux and the for space vector modulator, which ...
弦式永磁同步电机(PMSM)因其卓越的性能而备受业界和消费者的关注。近年来, 将PMSM 与DTC 结合的PMSM-DTC 系统已经成为国内外专家学者研究的焦点。本 课题采用先进的“复合型控制策略”,改进了作为永磁同步电动机伺服系统核心 组成部件的“控制器”性能。首先简要叙述永磁同步电机的发展历史和直接转 ...
pulse-width modulation (DTC-SVPWM) variant to control a permanent magnet synchronous motor (PMSM). The technique uses space vector modulation (SVM) to produce the pulse-width modulation (PWM) duty cycles that are used by the inverter to generate the three-phase voltages that run the PMSM. ...
控制相结合(SVM—DTC)的方法,以减小转矩和磁链脉动;为了提高定子磁链的观测精度,利用全阶磁链观测器观 测定子磁链,并提出一种单自由度极点配置方法实现磁链观测器的极点配置。仿真结果表明,系统不但实现了转 矩和磁链的定量控制,降低了转矩脉动和磁链脉动,提高了定子磁链的观测精度,而且同时使得逆变器开关周期恒 ...
基于超螺旋二阶滑模的PMSM-DTC系统研究 张苏英;马贺明;墨昭瑾;李林静;刘慧贤 【摘要】针对传统永磁同步电机直接转矩控制系统(PMSM-DTC)易受参数变化影响及转矩脉动大的问题,提出在系统中采用空间电压矢量调制技术(SVPWM)代替传统的正弦脉宽调制(SPWM),引入控制率为超螺旋算法的二阶滑模变结构,以定子磁链和转矩作为被...