一种改进的p-q-r理论在电力系统谐波检测中的应用  

Improved p-q-r theory for harmonic detection in power system

作　　者：顾炜[1] 陈明凯[1] 

机构地区：[1]福州大学电气工程与自动化学院,福建福州350002

出　　处：《华北电力大学学报（自然科学版）》2005年第5期11-14,共4页Journal of North China Electric Power University：Natural Science Edition

摘　　要：介绍了基于瞬时无功功率理论的p-q-r谐波检测理论。与传统的瞬时无功功率理论相比,p-q-r理论能够运用于三相四线制电路,检测出系统的谐波和中线电流。同时分析了该理论的局限性。在此基础上提出了一种改进的p-q-r谐波检测方法,并给出了参考模型下的MATLAB仿真,仿真结果验证了所提方法的正确性和有效性。A harmonic detection p-q-r method based on instantaneous reactive power theory is introduced. Compared with the traditional theory, the p-q-r method can be applied in three-phase four-wire systems. The shortcomings of the p-q-r method are analyzed. An improved method is proposed. The simulation with MATLAB shows that this method is effective.

关 键 词：瞬时无功功率理论 谐波检测 仿真 

分 类 号：TM714[电气工程—电力系统及自动化]