| 三相三线AC/DC PWM变流器电流控制新方法 |
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| 引用本文： | 周卫平,吴正国. 三相三线AC/DC PWM变流器电流控制新方法[J]. 电工技术学报, 2004, 19(12): 65-68 |
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| 作者姓名： | 周卫平 吴正国 |
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| 作者单位： | 海军工程大学电气工程系,武汉,430033;海军工程大学电气工程系,武汉,430033 |
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| 摘 要： | 提出了三相三线AC/DC PWM变流器基于期望电压预测的电流控制方法,分析建立了其时域数学模型并求出了基于优化目标函数最小化的最优可行解;对该控制策略下三相三线AC/DC PWM 变流器的控制性能进行了分析,给出了该控制方法的仿真和试验结果.
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| 关 键 词： | AC/DC PWM变流器 预测控制 最优化控制 |
| 修稿时间： | 2004-05-25 |
A Novel Current Control Method in Three-Phase Three-Wire AC/DC PWM Converter |
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| Zhou Weiping,Wu Zhengguo. A Novel Current Control Method in Three-Phase Three-Wire AC/DC PWM Converter[J]. Transactions of China Electrotechnical Society, 2004, 19(12): 65-68 |
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| Authors: | Zhou Weiping Wu Zhengguo |
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| Affiliation: | Naval University of Engineering Wuhan 430033 China |
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| Abstract: | A predictive current control method based on reference-voltage-prediction in AC/DC PWM converter is presented. Predictive control equation and its optimal feasible solution with minimum objective function value is deduced. The optimal solutions can be obtained by simple judgments and computations, which avoid complex co-ordinate transformations and significantly decrease computational complexity. The control performance under the proposed control strategy is analyzed. And the converter has the performance of high power factor and low total harmonic distortion. The proposed control approach can improve current tracking speed and accuracy, and has the characteristics of lower switching frequency, simple computation and easy application. The simulation and experiment results show its validity and feasibility. |
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| Keywords: | AC/DC PWM converter predictive control optimization control |
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