分段线性插值法在合并单元数据同步中的应用

针对IEC60044-8标准中的同步脉冲法需要数据反馈所带来的工程实现困难、系统复杂度增大的问题,提出了基于分段线性插值法的合并单元数据同步问题的解决方案。首先建立分段线性插值函数,并基于余项函数进行误差分析。理论推导、数值分析和实验验证均表明:分段线性插值算法复杂度低、同步性好,其采样精度高于变电站国家标准要求。

Application of Interpolation in Data Synchronization of Merging Unit

Aiming to the problems of more difficulties on engineering implementation and more system complexity caused by data feedback of synchronous pulse method in IEC60044-8 standards, this paper proposes a solution to the data synchronization in merging unit based on piecewise linear interpolation method. First of all, a piecewise linear interpolation function is built to do error analysis based on remainder functions. Theoretical derivation, numerical analysis and experimental verification indicate that the piecewise linear interpolation algorithm has lower complexity , better synchronization and better sampling precision which excels the relative specification in state standard on transformer substation.