直接转矩Super-Twisting滑模异步发电控制  

Super-Twisting Sliding-mode Direct-torque Control for Asynchronous Generation

作　　者：谷志锋 孙晓云 葛孟超 刘文康 单锁兰 李宏城 GU Zhifeng;SUN Xiaoyun;GE Mengchao;LIU Wenkang;SHAN Suolan;LI Hongcheng(School of Electrical and Electrics Engineering,Shijiazhuang Tiedao University,Shijiazhuang 050043,China)

机构地区：[1]石家庄铁道大学电气与电子工程学院,石家庄050043

出　　处：《高电压技术》2020年第8期2760-2768,共9页High Voltage Engineering

基　　金：国家自然科学基金(51407196,51677180);河北省自然基金面上项目(E2017506007);石家庄市军民融合项目(201060104A);河北省重点研发计划(20354501D).

摘　　要：为提高宽转速范围、冲击性负载条件下笼型异步电机自激取力发电系统(EDS-CAGS)的稳定控制能力,降低直接转矩控制脉振,采用电压–磁链外环强扭曲(Super-Twisting)控制与电流内环含K类函数直接反馈线性化控制相结合的方法,给出一种基于电压空间矢量调制的异步发电系统直接转矩控制新方法。EDS-CAGS仿真实验结果表明,在负载冲击和转速大范围变化条件下,相对于传统电压外环–电流内环直接转矩控制方法,基于新的控制方法,直流输出电压超调明显降低,电磁转矩响应速度加快、超调降低,滑模面变量及其导数能够较快收敛,EDS-CAGS鲁棒稳定能力得到加强。In order to improve the stability of the engine driven self-excitation cage asynchronous generation system(EDS-CAGS)on the condition of the large range speed variation and the impact load,and to reduce the pulsation of thedirect torque control(DTC),a new voltage space vector DTC is proposed based on the Super-Twisting control of the voltage-linkage outer subsystem and the K-class direct feedback linearization control of the current inner subsystem.EDS-CAGS simulation results show that,on the condition of the large-range speed variation and the impact load,compared with the traditional voltage outer-loop and current inner-loop DTC method,the overshoot of the DC output voltage is reduced significantly,the response speed of the torque is fastened,the derivative values of the sliding mode variables can be converged,and the robust stability of the EDS-CAGS is enhanced by the new Super-Twisting sliding mode control method.

关 键 词：异步发电 直接转矩控制 Super-Twisting控制 K类函数 直接反馈线性化 滑模控制 

分 类 号：TM343[电气工程—电机]