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电网技术  2015 

基于现场可编程门阵列的非理想电网快速同步检测技术

DOI: 10.13335/j.1000-3673.pst.2015.05.033, PP. 1390-1397

Keywords: 并网变换器,锁相环,复数滤波器,现场可编程门阵列

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Abstract:

为提高非理想电网同步检测的快速性和准确性,提出了基于多复数滤波器的锁频环同步检测方法。分析了该方法及其各内部模块的工作原理及特性,并对影响系统性能的关键参数进行了优化设计。为进一步加快检测速度,利用现场可编程门阵列(fieldprogrammablegatearray,FPGA)并行处理优势,提出了基于FPGA的同步检测实现方法。针对FPGA算数运算能力弱的问题,优化各模块实现结构,减少乘法等环节。对所提方法进行了实验验证,结果验证了其有效性。

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