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Method for Time-Domain Harmonic Responsibility Assignment With Multiple Load Branches
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DOI：10.1109/TPWRD.2025.3616157.png)
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Abstract
En 中文
The harmonics and interharmonics in the power system is a critical issue of power quality, which not only undermine the economic efficiency of system operation but also pose a potential threat to system safety. In light of the increasingly complex characteristics in future power loads, it becomes imperative to establish a fair determination of dominant harmonic sources and harmonic responsibilities. By adopting the time domain analysis method that transcends specific frequency domains, harmonics and interharmonics can be examined with greater intuitiveness and interpretability. A method is proposed based on time domain power analysis to evaluate the harmonic responsibility in cases where voltage and current contain harmonics and interharmonics at the point of common coupling (PCC). The extensibility of the proposed method renders it suitable for application across theories that possess orthogonal decomposition properties. Simulation comparison results illustrate that the proposed method efficiently assesses the harmonic and interharmonic responsibilities of load branches, and possesses significant potential for practical application.
Keywords:
Dominant harmonic source
harmonic responsibility
power quality
time domain power theory
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