摘要
为提高三相Vienna整流器响应速度以及在复杂环境下系统控制性能,提出一种无模型预测直接电压控制(Model-free predictive direct voltage control,MFPDVC)策略。首先,分析三相Vienna整流器数学模型,构建不依赖系统物理参数的超局部模型,增强控制系统鲁棒性;其次,对超局部模型离散化得到系统预测方程,同时设计包含电压、功率以及中点电位的成本函数,实现用单个环路控制多个目标,突破传统双闭环级联型控制结构内外环带宽限制,提升系统响应速度。最后,设计Luenberger观测器估计电压和功率超局部模型中的未知部分,并实时补偿预测模型,进一步提升抗扰动性能,实现无模型预测直接电压控制算法。仿真与试验结果表明,相比传统有限集模型预测功率控制方法,所提控制策略具有更优的鲁棒性和动稳态性能。
In order to improve the response speed and control performance of the three-phase Vienna rectifier in a complex environment,a model-free predictive direct voltage control(MFPDVC)algorithm is proposed.Firstly,by analyzing the mathematical model of the three-phase Vienna rectifier,an ultra-local model independent of the physical parameters of the system is constructed to enhance the robustness of the control system.Secondly,the ultra-local model was discretized to obtain the system prediction equation,and the cost function including voltage,power and midpoint potential is designed to control multiple targets with a single loop,breaking through the bandwidth limitation of the inner and outer loop of the traditional double closed-loop cascade control structure and improving the transient response of the system.Finally,the Luenberger observer is designed to observe the unknown part of the voltage and power ultra-local model,and real-time compensation prediction model is used to further improve disturbance resistance performance.Sequentially,the model-free predictive direct voltage control algorithm is realized.Simulation and experimental results show that the proposed strategy has better robustness and dynamic and steady-state performance than traditional finite set model predictive power control method.
作者
杨奥
于新红
许立斌
黄东晓
柯栋梁
汪凤翔
YANG Ao;YU Xinhong;XU Libin;HUANG Dongxiao;KE Dongliang;WANG Fengxiang(School of Advanced Manufacturing,Fuzhou University,Quanzhou 362200;Quanzhou Institute of Equipment Manufacturing Haixi Institutes,Chinese Academy of Sciences,Quanzhou 362216;College of Electrical Engineering and Automation,Fuzhou University,Fuzhou 350108)
出处
《电气工程学报》
CSCD
北大核心
2024年第3期295-305,共11页
Journal of Electrical Engineering
基金
国家自然科学基金(52277070)
福建省科技重大专项(2022HZ028010)
福建省科技计划(2022T3070)
泉州市科技计划(2023C002R)资助项目。
作者简介
杨奥,男,1998年生,硕士研究生。主要研究方向为电力电子与电力传动。E-mail:yangao_fzdx@163.com;通信作者:于新红,男,1989年生,高级工程师,硕士研究生导师。主要研究方向为电力电子技术。E-mail:xinhong.yu@fjirsm.ac.cn;汪凤翔,男,1982年生,研究员,博士研究生导师。主要研究方向为电机驱动与电力电子。E-mail:fengxiang.wang@fjirsm.ac.cn。
