| H桥级联STATCOM自适应死区补偿方法 |
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| 引用本文： | 徐榕,于泳,杨荣峰,于雁南,徐殿国. H桥级联STATCOM自适应死区补偿方法[J]. 哈尔滨工业大学学报, 2015, 47(9): 1-7 |
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| 作者姓名： | 徐榕 于泳 杨荣峰 于雁南 徐殿国 |
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| 作者单位： | 哈尔滨工业大学 电气工程及自动化学院,150001 哈尔滨,哈尔滨工业大学 电气工程及自动化学院,150001 哈尔滨,哈尔滨工业大学 电气工程及自动化学院,150001 哈尔滨,哈尔滨工业大学 电气工程及自动化学院,150001 哈尔滨,哈尔滨工业大学 电气工程及自动化学院,150001 哈尔滨 |
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| 基金项目： | 国家自然科学基金重点项目(51237002)；台达电力电子科教发展计划重大项目(DREM2012001). |
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| 摘 要： | 为消除死区效应对H桥级联静止同步补偿器(STATCOM)输出电压及电流的影响,提出一种新的死区补偿方法.根据离散扰动观测器的工作原理,设计相应的观测器,对由于死区效应引起的STATCOM输出电压与参考电压的差值进行实时在线观测,并将观测到的差值作为补偿量,引入到无差拍控制系统中,实现对死区的自适应补偿.仿真与实验结果表明,该方法可以有效地提高死区补偿效果,消除零点电流箝位现象,降低STATCOM输出电流的谐波含量.
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| 关 键 词： | H桥级联 静止同步补偿器 无差拍控制 死区补偿 离散扰动观测器 |
| 收稿时间： | 2014-05-16 |
Adaptive dead-time compensation of H-bridge cascaded STATCOM |
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| XU Rong,YU Yong,YANG Rongfeng,YU Yannan and XU Dianguo. Adaptive dead-time compensation of H-bridge cascaded STATCOM[J]. Journal of Harbin Institute of Technology, 2015, 47(9): 1-7 |
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| Authors: | XU Rong YU Yong YANG Rongfeng YU Yannan XU Dianguo |
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| Affiliation: | School of Electrical Engineering and Automation,Harbin Institute of Technology, 150001 Harbin, China,School of Electrical Engineering and Automation,Harbin Institute of Technology, 150001 Harbin, China,School of Electrical Engineering and Automation,Harbin Institute of Technology, 150001 Harbin, China,School of Electrical Engineering and Automation,Harbin Institute of Technology, 150001 Harbin, China and School of Electrical Engineering and Automation,Harbin Institute of Technology, 150001 Harbin, China |
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| Abstract: | In this paper, in order to eliminate the effect of STATCOM dead-time effect on the voltage and current, a new dead-time compensation method was proposed. According to the principle of discrete-time disturbance observer, corresponding observer was designed. The D-value of STATCOM output voltage and reference voltage caused by dead-time effect can be real-time observed on line. The D-value as a compensation value feeds back to the dead-beat control system to realize the self-adaption dead-time compensation. Simulation and experimental results show that it can effectively improve the effect of dead-time compensation, eliminate the phenomenon of the zero current clamping, and reduce current harmonic content of STATCOM. |
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| Keywords: | H-bridge cascaded static synchronous compensator dead-beat control dead-time compensation discrete-time disturbance observer |
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