| 三相电能质量调节器的检测及控制新方法 |
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| 引用本文： | 孙卓,姜新建,朱东起. 三相电能质量调节器的检测及控制新方法[J]. 清华大学学报(自然科学版), 2004, 44(10): 1297-1301 |
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| 作者姓名： | 孙卓 姜新建 朱东起 |
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| 作者单位： | 清华大学,电机工程与应用电子技术系,北京,100084 |
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| 摘 要： | 为了提高不平衡三相三线制供电系统的电能质量,先将基于FBD法的补偿电流检测方法进行推广,使其能够检测出三相电路中的谐波、无功及负序电流;然后提出了一种有源电能质量调节器的控制方法,使有源电能质量调节器能够同时补偿这3个电流分量。实验结果证明,基于FBD法的检测方法算法简单,可以应用于不平衡三相三线制供电系统;采用该文提出的控制方法,有源电能质量调节器可以同时补偿三相三线制供电系统中的谐波、无功及负序电流。
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| 关 键 词： | 电能质量 FBD法 谐波 负序电流 |
| 文章编号： | 1000-0054(2004)10-1297-05 |
| 修稿时间： | 2003-12-22 |
Detection and control for three-phase power quality compensator |
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| SUN Zhuo,JIANG Xinjian,ZHU Dongqi. Detection and control for three-phase power quality compensator[J]. Journal of Tsinghua University(Science and Technology), 2004, 44(10): 1297-1301 |
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| Authors: | SUN Zhuo JIANG Xinjian ZHU Dongqi |
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| Abstract: | The power quality of three-phase, three-wire power systems is improved using a detection method based on the FBD method to measure the reactive power, harmonics and negative-sequence currents. A control strategy was then developed for active power quality compensation. The experimental results show that the detection method based on the FBD method can be used in unbalanced three-phase three-wire power systems. The active power quality compensator can compensate the reactive power, the harmonics and the negative-sequence currents together using the control strategy. |
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| Keywords: | power quality FBD-method harmonic negative- sequence currents |
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