摘要
为了满足电网数字化的发展需求,用于实时监控电网电流的光电互感器技术成为新的研究热点。为计算传输电流量,需要对经过光电互感器转换后的正弦信号进行参数估计。对光电互感器输出的正弦信号使用同步采样技术可得到一系列采样点,在最小二乘法的基础上推广使用了递推算法,利用这些采样点计算出了被测正弦信号的参数,通过LabVIEW软件编程验证了这种方法的可行性,并计算了与实际参数的相对误差。
Aiming at meeting the demand of digital grid,optical electronic transformer which is used for real time supervising of AC becomes a new research subject.In order to calculate AC,the parameters were estimated of its own output which is small sine signal after optical electronic transformation.Depending on the technology of simultaneous sampling,a series of points can be found.A method was introduced based on least square method,these points were utilized to calculate the parameter of sine signal and it was improved with recursive least-square（RLS）.This method was proved by the program of LabVIEW,and the relative error was calculated.
出处
《机电工程》
CAS
2010年第11期99-102,共4页
Journal of Mechanical & Electrical Engineering
