Direct model predictive current control of quasi-Z-source inverters
Direct model predictive current control of quasi-Z-source inverters
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DOI：
10.1109/precede.2015.7395585
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发表时间：
2015-10
期刊：
影响因子：
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通讯作者：
A. Ayad;P. Karamanakos;R. Kennel
中科院分区：
文献类型：
--
作者：
A. Ayad;P. Karamanakos;R. Kennel
本文提出了一种基于电感和输出电流的准Z源逆变器（qZSI）两侧直接模型预测控制（MPC）策略。为了提高被控系统的性能，实现了长预测时域。然而，由于增加的计算能力需求，潜在的优化问题可能在计算上变得难以处理。为了克服这一点，并以计算效率高的方式真实的解决问题，分支定界策略与移动阻塞方案沿着使用。仿真结果表明了该控制策略的有效性。
This paper introduces a direct model predictive control (MPC) strategy to control both sides of a quasi-Z-source inverter (qZSI) based on the inductor and the output currents. To improve the performance of the controlled system, a long prediction horizon is implemented. However, the underlying optimization problem may become computationally intractable because of the increased computational power demands. To overcome this and to solve the problem in real time in a computationally efficient manner, a branch-and-bound strategy is used along with a move blocking scheme. Simulation results highlight the effectiveness of the presented control strategy.