双馈风机改进型三矢量模型预测电流控制  

Improved three-vector model predictive current control for DFIG

作　　者：刘述喜 黄思源 唐博 余燊源 王子豪 Liu Shuxi;Huang Siyuan;Tang Bo;Yu Shenyuan;Wang Zihao(College of Electrical and Electronic Engineering,Chongqing University of Technology,Chongqing 400054,China;Chongqing Energy Internet Engineering Technology Research Center,Chongqing 400054,China)

机构地区：[1]重庆理工大学电气与电子工程学院,重庆400054 [2]重庆市能源互联网工程技术研究中心,重庆400054

出　　处：《电子测量技术》2024年第15期13-22,共10页Electronic Measurement Technology

基　　金：国家自然科学基金(52207004);重庆市教委科学技术研究计划项目(KJQN202001128)资助。

摘　　要：针对双馈风力发电机三矢量模型预测电流控制算法复杂度,开关频率和控制性能问题,本文提出一种改进型三矢量模型预测电流控制算法。该算法旨在降低计算复杂度,同时固定开关频率并提升控制性能。首先,采用转子电流d、q轴无差拍控制原理对第一与第二最优电压矢量进行快速矢量选择,从而提高矢量选择效率,其次,基于转子电压d、q轴无差拍控制原理分配电压矢量作用时间,降低矢量作用时间计算复杂度,最后,按照每个控制周期固定开关频率原则对电压矢量作用顺序进行优化,以固定开关频率。仿真和实验结果表明,与三矢量模型预测电流控制算法相比,该算法运行时间缩短,在固定开关频率的同时有效减小了转子电流、电磁转矩和输出功率脉动,具有良好的控制性能。Aiming at the complexity,switching frequency and control performance of the three-vector model predictive current control algorithm for doubly-fed induction generators,this paper proposes an improved three-vector model predictive current control algorithm.The algorithm aims to reduce the computational complexity while fixing the switching frequency and improving the control performance.Firstly,the d-axis and q-axis deadbeat control principle of rotor current is used to fast vector selection is performed on the first and second optimal voltage vectors,so as to improve the efficiency of vector selection.Secondly,based on the d-axis and q-axis deadbeat control principle of rotor voltage,the action time of voltage vectors is allocated to reduce the computational complexity of vector action time.Finally,the action sequence of voltage vectors is optimized according to the principle of fixed switching frequency in each control period to fix the switching frequency.The simulation and experimental results show that compared with the three-vector model predictive current control algorithm,the algorithm shortens the running time,effectively reduces the rotor current,electromagnetic torque and output power ripple while fixed switching frequency and has good control performance.

关 键 词：双馈风力发电机 三矢量 模型预测电流控制 快速矢量选择 固定开关频率 

分 类 号：TM315[电气工程—电机] TN98[电子电信—信息与通信工程]