A Power Quality Disturbance Classification Method Based on Park Transform and Clarke Transform Analysis

摘要

This paper first analyzes the Park Transform and Clarke Transform of 5 normal power quality disturbances and then proposes 3 characteristic indexes based on the two transforms. The indexes can be used to classify 5 single disturbances and 5 mixed disturbances exactly. The algorithm is simple and easy to be implemented by hardware. It can also be the basis of power quality index evaluation. At last, this paper simulates the disturbance classification method by Matlab, and the result indicates that the classification method proposed by this paper is accurate, effective, and has a good effect on classifying mixed disturbance. The misjudge rate is also low.