| 基于网压预测的单相PWM整流器比例谐振控制 |
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| 引用本文： | 高吉磊,林飞,郑琼林.基于网压预测的单相PWM整流器比例谐振控制[J].电工技术学报,2011(5):45-51. |
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| 作者姓名： | 高吉磊 林飞 郑琼林 |
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| 作者单位： | 北京交通大学电气工程学院; |
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| 摘 要： | PWM整流器带谐波补偿器的比例谐振控制能够选择性地抑制电网电流中的谐波含量,然而其补偿的谐波次数受到电流环带宽的限制.当抑制谐波次数较高时,必须对谐振频率处电流环延时进行超前补偿,才能保证电流环的稳定性.随着抑制谐波次数的增多,数字信号处理器的运算量变大.针对上述问题,分析了电网电压谐波对电网电流的影响机理.提出了在电...
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| 关 键 词： | PWM整流器 重复控制 比例谐振控制 网压预测 谐波 |
Proportional-Resonant Control of Single-Phase PWM Rectifiers Based on Grid Voltage Prediction |
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| Gao Jilei Lin Fei Trillion Q Zheng.Proportional-Resonant Control of Single-Phase PWM Rectifiers Based on Grid Voltage Prediction[J].Transactions of China Electrotechnical Society,2011(5):45-51. |
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| Authors: | Gao Jilei Lin Fei Trillion Q Zheng |
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| Affiliation: | Gao Jilei Lin Fei Trillion Q Zheng(Beijing Jiaotong University Beijing 100044 China) |
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| Abstract: | Proportional-resonant control with harmonic compensator of PWM rectifiers can selectively eliminate grid current harmonic.However,the eliminated current harmonic order is limited by the current loop bandwidth.To make current loop stable,delay compensation must be considered when higher order harmonics need to be eliminated.With the increasing of eliminated harmonic numbers,the controller computation expense will become heavy.The influence of grid voltage harmonic on grid current is analyzed in this paper.Th... |
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| Keywords: | PWM rectifiers repetitive control proportional-resonant control grid voltage prediction harmonic |
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