学术论文

      基于自抗扰速度调节器的矩阵变换器驱动永磁同步电机直接转矩控制

      Direct Torque Control for Permanent Magnet Synchronous Motors Driven by Matrix Converter Based on the Speed Regulator of the Active Disturbance Rejection Technique

      摘要:
      针对永磁同步电机(permanent magnet synchronous motor,PMSM)系统,采用矩阵变换器(matrix converter,MC)驱动方式,提出了基于自抗扰技术(active disturbancerejection control,ADRC)的直接转矩控制(direct torque control,DTC)策略.用MC替换常规交—直—交变换器,以提高系统输入侧功率因数(power factor,PF);用ADRC替换常规电机调速系统中的PI速度调节器,以提高系统的鲁棒性.首先,建立MC驱动PMSM系统的数学模型,并给出ADRC速度调节器和MC驱动PMSM的DTC设计思路和方法.基于ADRC的DTC策略能够使MC驱动的PMSM系统稳定运行,具有较好的转速和转矩控制效果,且输入侧PF能够达到1.然后,将其与基于PI的DTC策略相比较,该策略具有更强的抗负载干扰能力和跟踪给定转速变化的能力.最后,通过仿真实验验证该方法的正确性和有效性.
      Abstract:
      For the permanent magnet synchronous motors (PMSMs),we propose the direct torque control (DTC) strategy based on active disturbance rejection control (ADRC) driven by matrix converter (MC).In this system,the MC replaces the conventional AC-DC-AC converter in order to increase the power factor (PF) of the system input side.Moreover,the ADRC is used as a substitute for the traditional PI speed regulator to enhance the robustness of the system.First,we build the mathematical model of the PMSM driven by the MC,and provide the ADRC-based speed regulator and the DTC designing ideal and method based on PMSM driven by MC.The DTC strategy based on ADRC helps the PMSM system driven by MC to operate in a more stable manner and possesses good control effect of the speed and torque;moreover,the PF of the system input side can reach 1.Then,compared with the PI-based DTC strategy,the proposed strategy possesses stronger robustness and better command-following characteristics underload torque and reference speedvariations.Finally,the simulation results are provided to demonstrate the feasibility and effectiveness of the proposed strategy.
      作者: 滕青芳 [1] 王传鲁 [1] 李姝湲 [2]
      Author: TENG Qingfang [1] WANG Chuanlu [1] LI Shuyuan [2]
      作者单位: 兰州交通大学自动化与电气工程学院,甘肃兰州,730070 武警工程大学研究生管理大队,陕西西安,710078
      刊 名: 信息与控制 ISTICPKU
      年,卷(期): 2016, 45(6)
      分类号: TM301
      在线出版日期: 2017年4月11日
      基金项目: 国家自然科学基金资助项目,人社部2015年留学人员科技活动择优资助项目[2015]192号