摘要
兼顾检测精度和检测的快速响应性能,结合注入式有源电力滤波器的结构与工作原理,提出了一种基于改进扩展Prony谱估计法的自适应频率跟踪电流检测方法。该检测算法采用最小均方(LMS)算法在线优化扩展Prony谱估计法中电导矩阵的频率,求出在该条件下的最佳解;并采用数字信号处理器和高速接口器件,通过简单的软件程序来实现,误差小,实时性强,满足了实际应用需要。
With the consideration of detection accuracy and rapid response,a current detection method with adaptive frequency tracking is proposed based on the improved extended Prony spectrum estimation,which integrates with the structure and working principle of injection active power filter. It applies the least mean square algorithm to on-line optimize the frequency of conductance matrix and finds the optimal solution under that condition,which is implemented by a simple software program with the help of digital signal processor and high-speed interface device. With higher accuracy and better real-time performance,the method meets the requirements of practical applications.
出处
《电力自动化设备》
EI
CSCD
北大核心
2010年第10期7-11,21,共6页
Electric Power Automation Equipment
基金
湖南省科技计划项目(2009GK3168)
长沙市科技计划项目(K0905042-11)
2010国家电网公司科技项目(渝电科技35#)~~
关键词
谐波检测
检测精度
快速响应
扩展Prony谱估计法
自适应算法
harmonic detection
detection accuracy
rapid response
extended Prony spectrum estimation
adaptive algorithm
