不平衡系统中ip-iq电流检测方法研究及DSP实现  

Study on the i_p-i_q Current Detection Method and its Realization on DSP in Unbalanced Systems

作　　者：郑宏[1] 郭凯[1] 张玉芝[2] 范崇盛[1] 

机构地区：[1]江苏大学,江苏镇江212013 [2]潍坊学院,山东潍坊261041

出　　处：《电力电子技术》2009年第3期19-20,59,共3页Power Electronics

基　　金：江苏省工业攻关项目(BE2007069);江苏省研究生培养创新工程(CX07B_102z)~~

摘　　要：阐述了基于瞬时无功功率理论的ip-iq方法,提出了一种以电网三相基波正序电压为同步参考坐标的电流检测法,并利用TMS320F2812型DSP实现了不平衡系统下的电流检测。对该电流检测方法进行了理论分析,详细阐述了该方法在DSP中的实现。实验结果表明,在系统不平衡状态,该电流检测方法具有良好的实时性和准确性。The current detection by ip-iq method based on instantaneous reactive power theory is expatiated,which is fundamental for the three-phase power fundamental frequeney positive sequence voltage synehronous reference eoordinates.The current detection is realized on TMS320F2812 in unbalanced systems.First of all the current deteetion method is analyzed, and then its realization on DSP is expounded.The simulation results show that the current detection method has characters of better real-time and aeeuraey in unbalanced systems.

关 键 词：电网 控制/电流检测 不平衡系统 

分 类 号：TM71[电气工程—电力系统及自动化]