Results 11 to 20 of about 631,742 (218)

Simulation of the Circulating Bearing Currents for Different Stator Designs of Electric Traction Machines

Machines, 2023
Pulse–width modulated inverters are commonly used to control electrical drives, generating a common mode voltage and current with high–frequency components that excite the parasitic capacitances within electric machines, such as permanent magnet ...
Yusa Tombul, Philipp Tillmann, Jakob Andert   +2 more
doaj   +1 more source

Analysis of the Influence of Common Mode Current on Wind Turbine

南方能源建设, 2023
[Introduction] The objective is to solve the injury and destruction of the wind turbine equipment caused by the common mode interference current and avoid the long-term operation of the wind turbine with faults and the damage to the large components of ...
Xiaofeng WANG
doaj   +1 more source

High-Frequency Common-Mode Voltage Reduced Space Vector Modulation for Grid-Connected Current-Source Inverter

World Electric Vehicle Journal, 2022
Suitable space vector modulation (SVM) with reduced high-frequency common-mode voltages (HF-CMVs) for grid-connected current-source inverters (CSIs) have not been well investigated yet.
Hang Gao, Tahmin Mahmud
doaj   +1 more source

A Limited Common-Mode Current Switched-Capacitor Multilevel Inverter Topology and Its Performance and Lifetime Evaluation in Grid-Connected Photovoltaic Applications

Energies, 2021
In this paper, a switched-capacitor multilevel inverter with voltage boosting and common-mode-voltage reduction capabilities is put forth. The proposed inverter is synthesized with one-half bridge and several switched-capacitor cells.
Hossein Khoun Jahan, Reyhaneh Eskandari, Tohid Rahimi, Rasoul Shalchi Alishah, Lei Ding, Kent Bertilsson, Mehran Sabahi, Frede Blaabjerg   +7 more
doaj   +1 more source

Novel H6 Transformerless Inverter for Grid Connected Photovoltaic System to Reduce the Conduction Loss and Enhance Efficiency

Energies, 2022
Presence of a transformer in a grid connected photovoltaic system provides galvanic isolation between the photovoltaic panels and the grid. However, it increases the overall cost, makes the circuit bulky and reduces the efficiency of the system.
Aditi Atul Desai, Suresh Mikkili, Tomonobu Senjyu   +2 more
doaj   +1 more source

High Efficiency Transformerless Photovoltaic DC/AC Converter with Common Mode Leakage Current Elimination: Analysis and Implementation

Energies, 2022
Photovoltaic (PV) electricity is widely used because of its positive environmental impact. To properly feed this energy into the grid, an electronic power converter, known as a PV inverter, is needed, which may or may not use a transformer.
Jorge Cardoso, Rodolfo Orosco, Nimrod Vazquez, Héctor López, Claudia Hernandez, Joaquin Vaquero   +5 more
doaj   +1 more source

A Common-Mode Shorting Network to Reduce Common-Mode Excitation of Three-Phase Two-Level Electric Drives

IEEE Open Access Journal of Power and Energy, 2023
Common-mode voltage and current in an electric machine are undesirable. Although the strategic placement of a common-mode inductor and dc input side capacitors may reduce the common-mode current produced by an electric drive system, the effectiveness of ...
Harshita Singh, Scott D. Sudhoff
doaj   +1 more source

Investigations on EMI Mitigation Techniques: Intent to Reduce Grid-Tied PV Inverter Common Mode Current and Voltage

Energies, 2019
Power inverters produce common mode voltage (CMV) and common mode current (CMC) which cause high-frequency electromagnetic interference (EMI) noise, leakage currents in electrical drives application and grid-connected systems, which consequently drops ...
Umashankar Subramaniam, Sagar Mahajan Bhaskar, Dhafer J.Almakhles, Sanjeevikumar Padmanaban, Zbigniew Leonowicz   +4 more
doaj   +1 more source

Experimental Study of Radiated Emission Due to Secondary Common-Mode Current in Buck Converters

Applied Sciences, 2023
High switching frequency and fast switching speed of wide bandgap power semiconductor device-based power converters may increase radiated emissions more than conventional silicon-power device-based power converters.
Shotaro Takahashi
doaj   +1 more source

Design of current sources for load common mode optimization

Journal of Electrical Bioimpedance, 2018
Bioimpedance measurement systems often use the Howland current sources to excite the biological material under study. Usually, difference or instrumentation amplifiers are used to measure the resulting voltage drop on this material.
Sirtoli Vinicius G, Morcelles Kaue F, Vincence Volney C   +2 more
doaj   +1 more source