Current sensorless sliding mode control for direct current–alternating current inverter with load variations via a USDO approach
Current sensorless sliding mode control for direct current–alternating current inverter with load variations via a USDO approach
复制标题
通过 USDO 方法实现负载变化的直流交流逆变器的电流无传感器滑模控制
DOI：
10.1049/iet-pel.2017.0569
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发表时间：
2018-06
影响因子：
2
通讯作者：
Qi Li
中科院分区：
文献类型：
--
作者：
Zuo Wang;Shihua Li;Jun Yang;Qi Li
在本研究中，提出一种无电流感测器之滑动模式控制方法应用于直流-交流转换器系统。SMC格式在处理匹配干扰和模型不确定性方面具有优势。然而，它未能消除失配干扰的影响。在分布式发电系统中，大范围的负荷变化和非线性负荷的影响导致性能下降。负载扰动作为失配扰动，通过不同于控制输入的通道进入系统。负载变化与输出电压耦合，导致周期性干扰。同时，由于宽带电流传感器的需求，成本显著增加。在现有的无电流传感器方法中，观测器被设计为在不考虑干扰的情况下重构电流。针对这一问题，提出了一种新的通用状态和扰动观测器（USDO），用于重构电感电流和负载扰动。通过将估计集成到滑模面的设计中，提出了一种无电流传感器滑模控制器。严格的闭环系统的稳定性分析。此外，考虑到高阶谐波，基线USDO被扩展以抑制这些谐波。实验结果验证了该方案的有效性。
In this study, a current sensorless sliding mode control (SMC) approach is proposed for a direct current-alternating current inverter system. The SMC scheme shows advantages in dealing with matched disturbances and model uncertainties. However, it fails to remove the effects of mismatched disturbances. In distributed generation systems, wide range of load variations and effects of non-linear loads result in performance degradation. Load disturbances, as the mismatched disturbances, entry the system via a channel different from the control input. Load variations are coupled with the output voltage, resulting in periodic disturbances. Meanwhile, the cost increases significantly due to the requirement of wideband current sensors. In the existing current sensorless approaches, observers are designed to reconstruct current without considering disturbances. Addressing it, a novel universal state and disturbance observer (USDO) is developed to reconstruct the inductor current and load disturbances. By integrating the estimations into the design of sliding surface, a current sensorless sliding mode controller is proposed. Rigorous stability analysis for the closed-loop system is presented. Furthermore, considering higher-order harmonics, the baseline USDO is extended to reject these harmonics. Experimental results are illustrated to verify the effectiveness of the proposed scheme.
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DOI：
10.1109/ias.2000.881988
发表时间：
2000
期刊：
Conference Record of the 2000 IEEE Industry Applications Conference. Thirty-Fifth IAS Annual Meeting and World Conference on Industrial Applications of Electrical Energy (Cat. No.00CH37129)
影响因子：
--
作者：
Z. Ibrahim;E. Levi
通讯作者：
Z. Ibrahim;E. Levi
影响因子：
7.7
作者：
P. Cortes;M. Kazmierkowski;R. Kennel;D. Quevedo;J. Rodríguez
通讯作者：
P. Cortes;M. Kazmierkowski;R. Kennel;D. Quevedo;J. Rodríguez
DOI：
10.1109/apec.2010.5433380
发表时间：
2010-03
期刊：
2010 Twenty-Fifth Annual IEEE Applied Power Electronics Conference and Exposition (APEC)
影响因子：
--
作者：
Shuitao Yang;Qin Lei;F. Peng;Z. Qian
通讯作者：
Shuitao Yang;Qin Lei;F. Peng;Z. Qian
DOI：
10.1109/apec.2014.6803335
发表时间：
2014-03
期刊：
2014 IEEE Applied Power Electronics Conference and Exposition - APEC 2014
影响因子：
--
作者：
Yongheng Yang;Huai Wang;Frede Blaabjerg
通讯作者：
Yongheng Yang;Huai Wang;Frede Blaabjerg
影响因子：
7.7
作者：
R. Ramos;D. Biel;E. Fossas;F. Guinjoan
通讯作者：
R. Ramos;D. Biel;E. Fossas;F. Guinjoan