Results 1 to 10 of about 3,150,912 (332)
Harmonic voltage measurement error of the capacitor voltage transformer. [PDF]
PLoS ONE, 2018 This paper explores the mechanism for the harmonic voltage measurement error (HVME) of a capacitor voltage transformer (CVT) in a comprehensive way and develops a practical error correction method to improve the harmonic measurement performance of a CVT.
Jian Le, Hao Zhang, Chao Gao, Qian Zhou
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IET Electric Power ApplicationsHarmonic state estimation, which highly depends on accurate synchronised phasors, is a crucial basis for the location, traceability, and governance of harmonics in power systems.
Xiaoxian Zhu +6 more
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Multi-source harmonic estimation method for distribution networks based on variational modal decomposition. [PDF]
PLoS ONETo address the limitation of harmonic monitoring on the low-voltage side of distribution networks, this paper proposes a multi-source harmonic estimation method based on variational mode decomposition. The method integrates short-term test data with long-
Hongjian Zuo +4 more
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Harmonic Distortion Compensation in Voltage Transformers for Improved Power Quality Measurements
IEEE Transactions on Instrumentation and Measurement, 2019 Monitoring voltage harmonics represents one of the most important tasks in power quality assessment. In particular, the employed instrument transformer plays a key role in the achieved accuracy. Its harmonic measurement performance is typically evaluated
Michele Zanoni +2 more
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Harmonic voltage monitoring based on coaxial capacitor and the analysis of influencing factors
Zhejiang dianli, 2023 Harmonic content is a key indicator of power quality， and the level of harmonic voltage monitoring in high-voltage power grids still cannot fully meet the production needs of electric power enterprises.
HE Wenlin, ZHAN Jiangyang
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A Control Strategy of Islanded Microgrid With Nonlinear Load for Harmonic Suppression
IEEE Access, 2021 A control strategy of islanded microgrid is proposed in this paper against the harmonic circulation of the inverters and the Point of Common Coupling (PCC) voltage harmonic distortion of the microgrid caused by nonlinear load.
Qiang Chen
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Energies, 2022 This paper deals with a method of quantifying the harmonic contribution of each harmonic source to system voltage distortion. Assessing the harmonic contribution of individual harmonic sources is essential for mitigating and managing system harmonic ...
Jong-Il Park, Chang-Hyun Park
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Jurnal Rekayasa Elektrika, 2023 This paper presents the proposed algorithms for the identification of Short Duration RMS Variations and Long Duration RMS Variations combined with harmonic. The proposed algorithms are Fast Fourier Transform (FFT) and Artificial Neural Network (ANN). The
Dimas Okky Anggriawan +3 more
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The strategy of second harmonic voltage match suppression for the DC-link in inverter
Energy Reports, 2022 In the two-stage converter such as PV renewable energy system, the second harmonic fluctuation exists in the DC voltage due to the power coupling between the DC-link and AC system. The second harmonic voltage in the DC link could increase the system loss
Minghang Zhong +2 more
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Zhongguo dianli, 2021 With the extensive application of photovoltaic inverter, the harmonic generated during its operation overlaps with the background harmonic of the system at the access point, which causes harmonic amplification and even resonance problems. It is therefore
Xu ZHANG +4 more
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