基于改进型Super-twisting的双馈感应发电机直接功率控制  

DIRECT POWER CONTROL OF DOUBLE-FED INDUCTION GENERATOR BASED ON IMPROVED SUPER-TWISTING

作　　者：李圣清[1] 文颜烯 黄远鹏 周志飞 陈欣 Li Shengqing;Wen Yanxi;Huang Yuanpeng;Zhou Zhifei;Chen Xin(School of Electrical and Information Engineering,Hunan University of Technology,Zhuzhou 412007,China;Key Laboratory of Electrical Transmission Control and Intelligent Equipment of Hunan Province,Zhuzhou 412007,China)

机构地区：[1]湖南工业大学电气与信息工程学院,株洲412007 [2]电传动控制与智能装备湖南省重点实验室,株洲412007

出　　处：《太阳能学报》2024年第10期529-535,共7页Acta Energiae Solaris Sinica

基　　金：国家自然科学基金(51977072)。

摘　　要：为提高双馈感应发电机(DFIG)直接功率控制的鲁棒性和抗干扰能力,提出一种改进型超螺旋滑模(STSMC)的直接功率控制(DPC)。首先,建立参数摄动下的DFIG最大功率捕获模型和定子磁场定向的双馈感应发电机模型;然后,将非奇异快速终端滑模面(NFTSM)与一种改进型超螺旋(Super-twisting)优化算法结合,设计DFIG直接功率控制器(IST-NFTSMC)。其中所设计的非奇异滑模面能有效避免传统滑模控制(SMC)的奇异现象,且改进超螺旋控制律能有效削弱NFTSMC抖振,提高功率控制精度;最后,通过仿真和实验,与PI控制和传统SMC控制相比,该控制能削弱DFIG功率与电流抖振问题,加快其收敛速度,提高DFIG直接功率控制稳态精度。A improved Super-twistingl sliding mode(STSMC)direct power control(DPC)is presented to improve the robustness and immunity to interference of the direct power control of a Doubly-fed induction generator(DFIG).Firstly,the Doubly-fed induction generator model with stator field orientation and the DFIG maximum power capture model under parametric regimes are created;Following that,the Non-singular fast terminal sliding mode surface(NFTSM)and an enhanced Super-twisting optimization method are combined to create the DFIG direct power controller(IST-NFTSMC).They include the developed Non-singular sliding mode surface,which can successfully avoid the singularity phenomena of conventional sliding mode control(SMC),and the improved Super-twisting control law,which can successfully reduce the jitter of the NFTSMC and increase the accuracy of the power control;Finally,through simulation and experiment,it is found that compared to the PI control and the conventional sliding mode control,the IST-NFTSMC may reduce the DFIG power and current jitter problem,speed up its convergence,and increase the steady state accuracy of the DFIG direct power management through simulation and experimentation.

关 键 词：双馈感应发电机 直接功率控制 超螺旋滑模控制 定子磁场定向 

分 类 号：TM614[电气工程—电力系统及自动化]