| 基于重复控制的SPWM逆变电源死区效应补偿技术 |
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| 引用本文： | 段善旭,孙朝晖,张凯,康勇,陈坚.基于重复控制的SPWM逆变电源死区效应补偿技术[J].电工技术学报,2004,19(2):52-57,63. |
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| 作者姓名： | 段善旭 孙朝晖 张凯 康勇 陈坚 |
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| 作者单位： | 华中科技大学电气与电子工程学院,武汉,430074;华中科技大学电气与电子工程学院,武汉,430074;华中科技大学电气与电子工程学院,武汉,430074;华中科技大学电气与电子工程学院,武汉,430074;华中科技大学电气与电子工程学院,武汉,430074 |
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| 摘 要： | 在SPWM逆变器中,为防止同一桥臂的上下管直通现象,必须注入一定的死区时间,死区会导致逆变器的输出波形畸变,即死区效应.在分析了死区时间对单相SPWM逆变器输出波形特性的影响的基础上,提出了一种基于重复控制的死区补偿控制策略,该控制方法可有效地改善输出电压的波形畸变,并在一台单相400Hz、5.5kW装置上进行了详细的实验验证,实验结果表明了该补偿策略的有效性和实用性.
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| 关 键 词： | 正弦脉宽调制 逆变器 死区 重复控制 补偿 |
| 修稿时间： | 2003年6月30日 |
A Compensation Strategy for Dead-time Effect of SPWM Inverters Based on Repetitive Control |
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| Duan Shanxu,Sun Zhaohui,Zhang Kai,Kang Yong,Chen Jian.A Compensation Strategy for Dead-time Effect of SPWM Inverters Based on Repetitive Control[J].Transactions of China Electrotechnical Society,2004,19(2):52-57,63. |
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| Authors: | Duan Shanxu Sun Zhaohui Zhang Kai Kang Yong Chen Jian |
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| Affiliation: | Huazhong University of Science & Technology Wuhan 430074 China |
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| Abstract: | A few microseconds dead-time must be inserted into the switching signals of SPWM inverters to prevent the short circuit. This can cause the dead-time effect of the output voltage distortion. The influence of dead-time on output voltage in single-phase SPWM inverters is analyzed in detail. A novel dead-time compensation strategy, which can provide excellent inverter output voltage distortion correction based on repetitive control, is also proposed. The experimental results on a 400Hz 5.5kW prototype of inverter are presented to demonstrate the practicability and validity of the control strategy. |
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| Keywords: | SPWM inverter dead-time repetitive control compensation |
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