The Class-E/F Family of ZVS Switching Amplifiers [PDF]
, 2003 A new family of switching amplifiers, each member having some of the features of both class E and inverse F, is introduced. These class-E/F amplifiers have class-E features such as incorporation of the transistor parasitic capacitance into the circuit ...
Aoki, Ichiro +3 more
core +1 more source
IEEE Access, 2022 The permanent magnet synchronous machines system includes various harmonics caused by asymmetric impedance, current measurement errors, spatial harmonics, and inverter nonlinearity. The asymmetric impedance and the current measurement scaling error cause
Hao Lin +4 more
doaj +1 more source
Suppression of line voltage related distortion in current controlled grid connected inverters [PDF]
, 2005 The influence of selected control strategies on the level of low-order current harmonic distortion generated by an inverter connected to a distorted grid is investigated through a combination of theoretical and experimental studies.
Abeyasekera, T. +3 more
core +2 more sources
Optimal design of single-tuned passive filters using response surface methodology [PDF]
, 2015 This paper presents an approach based on Response Surface Methodology (RSM) to find the optimal parameters of the single-tuned passive filters for harmonic mitigation.
Abdel Aleem, SHE +4 more
core +1 more source
Dynamic Impedance Estimation: Challenges and Considerations
Applied Sciences, 2021 The objective of this paper was to examine the dynamic impedance estimation of electrical systems from online measurements. The paper makes several considerations and highlights the challenges to obtain a precise estimation.
Mateus M. de Oliveira +6 more
doaj +1 more source
The optimal passive filters to minimize voltage harmonic distortion at a load bus [PDF]
, 2005 This material is posted here with permission of the IEEE. Such permission of the IEEE does not in any way imply IEEE endorsement of any of Brunel University's products or services. Internal or personal use of this material is permitted.
Zobaa, AF
core +1 more source
Fully integrated CMOS power amplifier design using the distributed active-transformer architecture [PDF]
, 2002 A novel on-chip impedance matching and power-combining method, the distributed active transformer is presented. It combines several low-voltage push-pull amplifiers efficiently with their outputs in series to produce a larger output power while ...
Aoki, Ichiro +3 more
core +1 more source
Suppression of Second-Order Harmonic Current for Droop-Controlled Distributed Energy Resource Converters in DC Microgrids [PDF]
, 2020 Droop-controlled distributed energy resource converters in dc microgrids usually show low output impedances. When coupled with ac systems, second-order harmonics typically appear on the dc-bus voltage, causing significant harmonic currents at the ...
Caldognetto, Tommaso +3 more
core +1 more source
A new method for harmonic impedance estimation [PDF]
2018 18th International Conference on Harmonics and Quality of Power (ICHQP), 2018 Determining the harmonic responsibilities of utility and customer side at a PCC has been a great concern in harmonic research, and utility harmonic impedance is a key factor for assessing harmonic emission levels. When background harmonic is unstable, traditional methods have a large error.
Fang-Wei Xu +5 more
openaire +1 more source
Closed-form Harmonic Contrast Control with Surface Impedance Coatings for Conductive Objects
, 2017 The problem of suppressing the scattering from conductive objects is addressed in terms of harmonic contrast reduction. A unique compact closed-form solution for a surface impedance $Z_s(m,kr)$ is found in a straightforward manner and without any ...
Labate, Giuseppe +2 more
core +1 more source