HU Xiao-jing, SONG Zheng-xiang, WANG Jian-hua, et al. Novel Technique Based on Digital Frequency Multiplying Principle with High Accuracy in Power System Frequency Tracking[J]. High voltageapparatus, 2007, (3): 172-175.
HU Xiao-jing, SONG Zheng-xiang, WANG Jian-hua, et al. Novel Technique Based on Digital Frequency Multiplying Principle with High Accuracy in Power System Frequency Tracking[J]. High voltageapparatus, 2007, (3): 172-175.DOI:
This paper analyzed the principle and character of previous frequency tracking technique.A novel technique was represented
in which adaptive compensation was adopted to minimize the error of digital frequency multiplying effectively.This eliminated calculation error caused by frequency deviation
and realized synchronization of sampling windows and period.The results on field programmable gate array indicate that design is validity and can be set in electric energy quality on-line monitor device as an unaided module.