An Inter-Harmonics Detection Device Based on DSP

摘要：

This paper introduces an inter-harmonics detection device based on DSP. The major characteristic of the device is that it can detect the inter-harmonics based on the generalized dk-qk rotational coordinate transform theory. To increase the distinguish ability between two close frequencies, this paper introduces a flex time coordinate method, which decreases the spectral leakage greatly. The sampling data disparity problem is solved by using the external phase-locked loop, which overcomes the poor detecting accuracy of the former harmonics detection. Meanwhile, in order to meet the power system safety requirements, this paper develops a device protection module for the periphery power network data acquisition circuit. The practical application demonstrates that the detection device can detect both integral harmonics and inter-harmonics and operate well in the substation.

作者: Ruikai XIE Bo ZHANG Dongyuan QIU Lianggang CHEN

作者单位: South China University of Technology, China

会议类型: 国际会议

会议名称: 2nd IEEE Conference on Industrial Electronics and Applications(ICIEA 2007)(第二届IEEE工业电子与应用国际会议)

会议地点: 哈尔滨

会议语种:英文

在线出版日期: 2007-05-23（万方平台首次上网日期，不代表论文的发表时间）