| 无电流传感器三相PWM整流器控制策略 |
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| 引用本文： | 张恩,廖晓钟.无电流传感器三相PWM整流器控制策略[J].电工技术学报,2004,19(11):42-45. |
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| 作者姓名： | 张恩 廖晓钟 |
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| 作者单位： | 北京理工大学自动控制系,北京,100081;北京理工大学自动控制系,北京,100081 |
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| 摘 要： | 提出了一种无电流传感器的三相PWM整流器控制策略.系统采用双闭环控制,外环PI调节器控制直流侧输出电压,内环通过滞环调节器控制有功功率和无功功率,达到单位功率因数运行的目的.根据整流器的数学模型通过电流重构可获得网侧电流,以实现无电流传感器控制.仿真实验证明该方案具有良好的控制性能.
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| 关 键 词： | 无电流传感器 PWM整流器 电流重构 |
| 修稿时间： | 2004年6月17日 |
Current Sensorless Control of Three-Phase PWM Rectifiers |
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| Zhang En,Liao Xiaoxhong.Current Sensorless Control of Three-Phase PWM Rectifiers[J].Transactions of China Electrotechnical Society,2004,19(11):42-45. |
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| Authors: | Zhang En Liao Xiaoxhong |
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| Affiliation: | Beijing Institute of Technology Beijing 100081 China |
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| Abstract: | In this paper a current sensorless control strategy of three-phase PWM rectifiers is presented. Double close-loop control method is applied in the system. DC voltage is regulated by the external loop PI regulator. The system can operate at unity power factor by controlling the active and reactive power with two inner loop hysteresis controllers. The input AC current can be reconstructed from the mathematical model of PWM rectifiers in order to eliminating current sensors . The simulation results prove that the system has good performance. |
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| Keywords: | Current sensorless PWM rectifiers current reconstruction |
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