基于dq0变换的三相四线制系统电流综合检测方法  

Integrated current detection method for three-phase four wire system based on instantaneous power theory

作　　者：于传 徐修华[3] 李先允[3] 王书征[3] 胡胜利[1,2] YU Chuan;XU Xiu-hua;LI Xian-yun;WANG Shu-zheng;HU Sheng-li(Training Center of State Grid Anhui Electric Power Co.Ltd.,Hefei 230022,China;Anhui Electrical Engineering Professional Technique College,Hefei 230051,China;School of Power Engineering,Nanjing Institute of Technology,Nanjing 211167,China)

机构地区：[1]国网安徽省电力有限公司培训中心,安徽合肥230022 [2]安徽电气工程职业技术学院,安徽合肥230051 [3]南京工程学院电力工程学院,江苏南京211167

出　　处：《电力科学与技术学报》2019年第4期173-179,共7页Journal of Electric Power Science And Technology

基　　金：国网安徽省电力有限公司科研项目(521204150009);江苏省配电网智能技术与装备协同创新中心开放基金(XTCX201604);南京工程学院引进人才科研启动基金(YKJ201519);江苏省高校自然科学研究面上项目(16KJB470006)

摘　　要：有源电力滤波器是解决电能质量问题的关键设备,而检测技术是其可靠运行的重要保障。该文首先研究任意三相系统谐波规律,然后基于dq0变换,针对电网电压波动、不对称、畸变等情况,提出一种适用于任意三相系统的不对称、谐波及无功电流的综合检测方法,并用严格的数学推导证明该检测方法,最后通过仿真验证该检测方法的有效性和正确性。Active power filter is the significant equipment to solve power quality problems. Its reliable operation is safeguarded by the detection technique. Firstly, the harmonic law is studied in this paper. Then considering the voltage fluctuation, asymmetry, distortion and so on at power grid, a new method is proposed and proven strictly in a mathematical manner for the detection of unsymmetrical, harmonic and reactive currents in arbitrary three-phase systems based on dq0 formatting. Finally, the validity and correctness of the method are verified by simulation.

关 键 词：谐波 DQ0变换 综合电流检测 APF 

分 类 号：TM93[电气工程—电力电子与电力传动]