| 三相电压型PWM整流器滑模变结构直接功率控制 |
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| 引用本文： | 汪万伟,尹华杰,管霖.三相电压型PWM整流器滑模变结构直接功率控制[J].华南理工大学学报(自然科学版),2009,37(11). |
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| 作者姓名： | 汪万伟 尹华杰 管霖 |
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| 作者单位： | 华南理工大学,电力学院,广东,广州,510640 |
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| 基金项目： | 国家自然科学基金资助项目 |
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| 摘 要： | 摘 要：本文提出了一种基于滑模变结构控制理论的三相PWM整流器直接功率控制方案，它利用滑模变结构控制系统的鲁棒性和动态性能较好、参数整定简单的优点，解决了传统上基于PI算法的直接功率控制系统抗扰性能差、对PI控制参数较敏感、网侧电流总谐波含量（THD）较大的缺点；在MATLAB/SIMULINK环境中建立仿真模型，对滑模控制和PI控制两种方案进行仿真比较，结果表明滑模控制方案明显优于PI控制方案.
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| 关 键 词： | PWM整流器 PI 直接功率控制 滑模变结构 仿真 |
| 收稿时间： | 2008-12-30 |
| 修稿时间： | 2009-4-15 |
The Sliding-mode Direct Power Control of Three-Phase Voltage Source PWM Rectifier |
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| Wang Wan-wei,Yin Hua-jie,Guan Lin.The Sliding-mode Direct Power Control of Three-Phase Voltage Source PWM Rectifier[J].Journal of South China University of Technology(Natural Science Edition),2009,37(11). |
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| Authors: | Wang Wan-wei Yin Hua-jie Guan Lin |
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| Abstract: | Abstract:
A direct power control scheme for three-phase PWM rectifiers based on sliding-mode variable structure control theory is proposed in this paper. It takes the slide-mode variable structure control's advantages such as better robustness, better transient performance and simple tuning of parameters, to solve the conventional proportional integral (PI) control's problems such as high sensitiveness to PI parameters and external disturbances, and large line current distortion. Both the proposed controller and the conventional PI controller for three-phase PWM rectifiers are modeled and simulated in the MATLAB/SIMULINK environment, and their output voltage control behaviors are compared with each other. The simulation results show that the proposed controller is superior to PI controller. |
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| Keywords: | PWM rectifier PI controller direct power control sliding-mode variable structure simulation |
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