Results 281 to 290 of about 1,002,790 (325)
Some of the next articles are maybe not open access.
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
semanticscholar +1 more source
IEEE Transactions on Sustainable Energy, 2022
In an islanded microgrid, the wire impedance mismatches among distributed generation (DG) units lead to inaccurate power sharing results, which influences the system’s normal operation.
Fei Deng +5 more
semanticscholar +1 more source
In an islanded microgrid, the wire impedance mismatches among distributed generation (DG) units lead to inaccurate power sharing results, which influences the system’s normal operation.
Fei Deng +5 more
semanticscholar +1 more source
A “Critical Impedance”-Based Method for Identifying Harmonic Sources
IEEE Transactions on Power Delivery, 2002Summary form only given. This paper proposes a new method to determine whether the utility or the customer side has more contribution to the harmonic currents measured at the point of common coupling. The method is inspired by the observation that the direction of harmonic reactive power, instead of active power, is a more reliable indicator on the ...
null Wilsun Xu +2 more
openaire +1 more source
IEEE Transactions on Sustainable Energy, 2022
The balanced, unbalanced and harmonic current sharing inaccuracy caused by the mismatched wire impedances of distributed generation (DG) units influences the normal operation of islanded microgrids. To deal with this issue, an iterative virtual impedance
Fei Deng +3 more
semanticscholar +1 more source
The balanced, unbalanced and harmonic current sharing inaccuracy caused by the mismatched wire impedances of distributed generation (DG) units influences the normal operation of islanded microgrids. To deal with this issue, an iterative virtual impedance
Fei Deng +3 more
semanticscholar +1 more source
Including Uncertainties From Customer Connections in Calculating Low-Voltage Harmonic Impedance
IEEE Transactions on Power Delivery, 2019A method is proposed in this paper to determine the harmonic impedances in low-voltage networks in a stochastic way. The consequences of resonances for harmonic propagation and stability of power converters are summarized. By using Monte Carlo simulation,
T. Busatto +3 more
semanticscholar +1 more source
IEEE Journal of Emerging and Selected Topics in Power Electronics
The shunt active power filter (APF) can effectively compensate for the harmonics caused by nonlinear loads and improve the power quality. Compared with load current detection, the shunt APF with source current detection is considered to have better ...
Yuguo Li, Hao Yi, Fang Zhuo, Xin Jiang
semanticscholar +1 more source
The shunt active power filter (APF) can effectively compensate for the harmonics caused by nonlinear loads and improve the power quality. Compared with load current detection, the shunt APF with source current detection is considered to have better ...
Yuguo Li, Hao Yi, Fang Zhuo, Xin Jiang
semanticscholar +1 more source
IEEE Journal of Emerging and Selected Topics in Power Electronics, 2021
In case of voltage harmonic compensation at the point of common coupling (PCC) in islanded microgrids, it is important to share the harmonic load power correctly among the distributed generators (DGs) to use the DGs’ capacity effectively.
Tuan V. Hoang, Hong‐Hee Lee
semanticscholar +1 more source
In case of voltage harmonic compensation at the point of common coupling (PCC) in islanded microgrids, it is important to share the harmonic load power correctly among the distributed generators (DGs) to use the DGs’ capacity effectively.
Tuan V. Hoang, Hong‐Hee Lee
semanticscholar +1 more source
IEEE transactions on electromagnetic compatibility (Print), 2018
The effect of multilayer stratified ground on the harmonic impedance of grounding systems is evaluated. To this aim, the mixed-potential integral equation is used.
H. Karami, K. Sheshyekani
semanticscholar +1 more source
The effect of multilayer stratified ground on the harmonic impedance of grounding systems is evaluated. To this aim, the mixed-potential integral equation is used.
H. Karami, K. Sheshyekani
semanticscholar +1 more source
Harmonic impedance estimation in frequency deviation scenario
2018 18th International Conference on Harmonics and Quality of Power (ICHQP), 2018Harmonic impedance is an important parameter for electrical power system analyses. This parameter can be used in some important application such as island and resonance detection. The methods used for impedance estimation can be separated in two categories: invasive and noninvasive methods.
Henrique L. M. Monteiro +5 more
openaire +1 more source
Harmonic Impedance Detection Based on Capacitor Switching and Wavelet Packet Analysis
Cyber .., 2019In order to solve the problem of harmonic pollution of power grid, finding the harmonic impedance of the system it is an important premise of the evaluation of harmonic emission level, the division of harmonic responsibility and the design of harmonic ...
Zhang Guojiang +4 more
semanticscholar +1 more source