三相电能质量调节器的检测及控制新方法  

Detection and control for three-phase power quality compensator

作　　者：孙卓[1] 姜新建[1] 朱东起[1] 

机构地区：[1]清华大学电机工程与应用电子技术系,北京100084

出　　处：《清华大学学报（自然科学版）》2004年第10期1297-1301,共5页Journal of Tsinghua University(Science and Technology)

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。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.

关 键 词：电能质量 FBD法 谐波 负序电流 

分 类 号：TM714[电气工程—电力系统及自动化]