级联多电平逆变器有限控制集模型预测控制
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引用本文:朱厚达,陈才学,刘 凯,廖 凯.级联多电平逆变器有限控制集模型预测控制[J].计算技术与自动化,2018,(2):17-22
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朱厚达,陈才学,刘 凯,廖 凯 (湘潭大学 信息工程学院湖南 湘潭 411105) 
中文摘要:针对传统级联多电平逆变器的有限控制集模型预测控制(FCS-MPC)计算量随电平数增加而指数增长的缺点,本文提出了改进的级联多电平逆变器FCS-MPC控制算法。首先,分析级联多电平逆变器的数学模型,探讨了FCS-MPC控制策略在级联多电平上的应用原理,在传统FCS-MPC控制的基础上,对电流进行延时补偿、反馈补偿及参考电流校正,提高了系统的跟踪特性和减少了电流谐波畸变率;其次,将复杂分区内电压矢量的追踪计算简化至在单一分区内进行,优化开关冗余状态,减少计算量。最后搭建了MATLAB仿真实验,与传统FCS-MPC算法对比分析,证明了此方法的正确性和优越性。
中文关键词:级联多电平逆变器  有限控制集模型预测控制  简化分区计算
 
Finite Control Set Model Predictive Control of Cascade Multilevel Inverter
Abstract:An improved finite control set model predictive control(FCS-MPC) is proposed to overcome the shortcoming that calculation grow exponentially with the increase of the level series in traditional FCS-MPC with multilevel cascaded inverters. Firstly,the mathematical model of multilevel inverter is analyzed, and the application principle of FCS-MPC control strategy is discussed,applying current delay compensation,feedback compensation and reference current correction improves the tracking feature and reduces the current harmonic distortion. Secondly,the voltage vector selection is simplified when the complex partition voltage vector tracking calculations is simplified to be done in a single partition. Simulation results of comparison traditional FCS-MPC are provided to verify the effectiveness of the proposed FCS-MPC strategy.
keywords:multilevel cascaded inverter  finite control set model predictive control (FCS-MPC)  simplify partition calculation
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