基于内模理论的电压源变换器直接功率控制  

Internal Model Theory Based Direct Power Controlfor Voltage Source Converters

作　　者：陶玉昆 杨飞飞 和萍 李从善 TAO Yu-kun;YANG Fei-fei;HE Ping;LI Cong-shan

机构地区：[1]郑州轻工业大学电气信息工程学院,河南郑州450002

出　　处：《计算机仿真》2021年第5期80-84,共5页Computer Simulation

基　　金：河南省科技攻关项目(182102210161);河南省高等学校重点科研项目(20B470012);郑州轻工业大学博士科研启动基金(2017BSJJ001,2017BSJJ003)。

摘　　要：为提高电压源变换器瞬时功率跟踪精度,提出了一种内模无差拍预测直接功率控制方法。首先,对传统无差拍预测直接功率控制的数学模型进行分析,揭示了建模假设对瞬时功率跟踪精度产生影响的机理。然后,依据内模理论,在瞬时功率参考产生环节嵌入反映功率动力学特性的数学模型,提出了新的预测控制方案。最后,基于MATLAB软件进行了对比仿真研究,仿真结果表明与传统无差拍预测直接功率控制及其改进型相比,所提出的控制策略能实现瞬时功率的准确跟踪。To improve the tracking performance of instantaneous power for voltage source converters,this paper proposed an internal model theory based deadbeat predictive direct power control.Firstly,the mathematical model analysis was conducted for the conventional deadbeat predictive direct power control.Meanwhile,this paper revealed that the tracking errors for the conventional control were induced through the assumptions for controller modeling.Then,considering the internal model theory,this paper adjusted the instantaneous power references and established a novel predictive direct power control.Finally,simulation studies were carried out based on MATLAB.Simulation results reflect that,distinguishing from conventional schemes,the proposed one realizes no error tracking for the instantaneous power.

关 键 词：内模原理 无差拍控制 预测直接功率控制 电压源变换器 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]