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Harmonic Impedance Estimation Method Based on Data Filtering and Improved Rank Regression
2024 3rd Asian Conference on Frontiers of Power and Energy (ACFPE)In modern power systems, the integration of numerous power electronic devices leads to random fluctuations in harmonic impedance. To improve the accuracy of harmonic impedance estimation, this paper utilizes the similarity secondary measurement principle
Yongqing Li +4 more
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Fourth International Conference on Electronics Technology and Artificial Intelligence (ETAI 2025)
Aiming at the problem that the accuracy of traditional harmonic responsibility division is affected due to the fluctuation of background harmonic voltage and the variation of system harmonic impedance in the real power system, a multiharmonic source ...
Wanqing Ke +4 more
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Aiming at the problem that the accuracy of traditional harmonic responsibility division is affected due to the fluctuation of background harmonic voltage and the variation of system harmonic impedance in the real power system, a multiharmonic source ...
Wanqing Ke +4 more
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Estimation of Time-Varying Harmonic Impedance Using Probability Distribution-Based Approach
2025 10th Asia Conference on Power and Electrical Engineering (ACPEE)In previous studies, harmonic impedance estimation was typically assumed to be a constant value. However, due to the randomness of renewable energy and the time-varying nature of control strategies in modern power systems, this assumption is no longer ...
Xin Chen +4 more
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A technique for power supply harmonic impedance estimation using a controlled voltage disturbance
IEEE Transactions on Power Electronics, 2002A method for power system impedance estimation is presented. The method employs a power converter to inject a voltage transient onto the supply system. As the technique employs controlled power electronic devices it may be used as a stand alone piece of a portable measurement equipment, or it may be embedded into the functions of an Active Shunt Filter
Mark Sumner +4 more
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A Harmonic Impedance on Utility Side Estimation Method Based on Laplace Mixture Model
IEEE Transactions on Power DeliveryWith the advancement of new power systems, an increasing number of new energy power stations and nonlinear loads are connecting to the grid. This has led to a more serious problem of harmonic pollution, with an increase in harmonic sources within the ...
Yu Fan, Fangwei Xu, Chang Wang, Qin Shu
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2023 2nd Asian Conference on Frontiers of Power and Energy (ACFPE), 2023
Accurate assessment of utility harmonic impedance is a necessary prerequisite for harmonic source determination. Most of the traditional methods are based on the assumption that the utility harmonic parameters are unchanged, so that they are not suitable
Yi Wen +4 more
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Accurate assessment of utility harmonic impedance is a necessary prerequisite for harmonic source determination. Most of the traditional methods are based on the assumption that the utility harmonic parameters are unchanged, so that they are not suitable
Yi Wen +4 more
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A Grid Impedance Estimation Method Robust Against Grid Voltages Unbalance and Harmonic Distortions
Journal of Control, Automation and Electrical Systems, 2022Hugo M. T. C. Gomes +5 more
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Workshop on Automated Control for Datacenters and Clouds, 2020
The UHVDC converter station is equipped with AC filters of different types and parameters, and its overall impedance-frequency characteristics are relatively complex.
L. Wentao +5 more
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The UHVDC converter station is equipped with AC filters of different types and parameters, and its overall impedance-frequency characteristics are relatively complex.
L. Wentao +5 more
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Harmonics Frequencies Impedance Estimation Based on Least-square method
2019 IEEE 8th International Conference on Advanced Power System Automation and Protection (APAP), 2019This paper presents an approach to estimate the grid impedance at fundamental as well as harmonics frequencies. The required measurements are voltage and current at the point of common coupling (PCC) under normal operating conditions. The source voltages are also estimated simultaneously.
Kai Liu, Yan Zhang, Dacfey Dzung
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