Extended State Observer-Based Sliding-Mode Control for Three-Phase Power Converters
Extended State Observer-Based Sliding-Mode Control for Three-Phase Power Converters
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DOI：
10.1109/tie.2016.2610400
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发表时间：
2017-01-01
影响因子：
7.7
通讯作者：
Franquelo, Leopoldo G.
中科院分区：
文献类型：
--
作者：
Liu, Jianxing;Vazquez, Sergio;Franquelo, Leopoldo G.
提出了一种基于扩展状态观测器的三相两电平变流器二阶滑模控制方法。所提出的控制技术迫使输入电流跟踪所需的值，从而在实现用户定义的功率因数的同时间接调节输出电压。该方法有两个控制回路。一种是基于SOSM的电流控制回路，另一种是由ESO加SOSM构成的直流侧电压调节回路。在这项工作中，连接到直流侧电容器的负载被视为外部扰动。ESO被用来渐近地抑制这种外部干扰。因此，在控制律的推导中要考虑其设计，以达到较高的性能。理论分析表明了该控制器的闭环性，并给出了在实际功率变流器样机上验证控制算法的实验结果。
This paper proposes an extended state observer (ESO) based second-order sliding-mode (SOSM) control for three-phase two-level grid-connected power converters. The proposed control technique forces the input currents to track the desired values, which can indirectly regulate the output voltage while achieving a user-defined power factor. The presented approach has two control loops. A current control loop based on an SOSM and a dc-link voltage regulation loop which consists of an ESO plus SOSM. In this work, the load connected to the dc-link capacitor is considered as an external disturbance. An ESO is used to asymptotically reject this external disturbance. Therefore, its design is considered in the control law derivation to achieve a high performance. Theoretical analysis is given to show the closed-loop behavior of the proposed controller and experimental results are presented to validate the control algorithm under a real power converter prototype.