Results 261 to 270 of about 3,150,912 (332)

Wideband Harmonic Voltage Feedforward Control Strategy of STATCOM for Mitigating Subsynchronous Resonance in Wind Farm Connected to Weak Grid and LCC HVDC

IEEE Journal of Emerging and Selected Topics in Power Electronics, 2021
For the wind farm connected to line-commutated converter-based high-voltage direct-current (LCC HVDC) and weak grid at sending end, subsynchronous resonance (SSR) is prone to occur due to the impedance interactions among wind farm, weak grid, and LCC ...
Gaoxiang Li, Yandong Chen, An Luo, Xuan Liu   +3 more
semanticscholar   +1 more source

High-Frequency-Link Current Stress Optimization of Cascaded H-Bridge-Based Solid-State Transformer With Third-Order Harmonic Voltage Injection

IEEE Journal of Emerging and Selected Topics in Power Electronics, 2021
Cascaded H-bridge (CHB) -based solid-state transformer (SST) consists of CHBs and dual active bridge (DAB) converters. Series-resonant DAB converters (SRCs) are widely used for its advantages of soft switching characteristic and simple control.
Yu-Jie Hu, Zixin Li, Hang Zhang, Cong Zhao, Fanqiang Gao, Longfu Luo, Kedong Luan, Ping-Jian Wang, Yaohua Li   +8 more
semanticscholar   +1 more source

Conservative Power Theory for Harmonic Voltage Responsibility Assignment

IEEE Latin America Transactions, 2022
Discussions on the different methods for sharing responsibilities regarding harmonic distortions in power grids have received wide attention in the area of power quality.
Matheus Branco Arcadepani, Diego Tardivo Rodrigues, Alexandre Candido Moreira, J. Bonaldo, Hildo Guillardi, H. K. Morales Paredes   +5 more
semanticscholar   +1 more source

Sinusoidal Harmonic Voltage Injection PWM Method for Vienna Rectifier With an LCL Filter

IEEE transactions on power electronics, 2021
This article proposes a harmonic voltage injection pulsewidth modulation (PWM) method for a Vienna rectifier with an LCL filter. Existing PWM methods for Vienna rectifiers with full power factor can lead to resonance problems.
Jin-Hyuk Park, June-Seok Lee, Kyo-Beum Lee   +2 more
semanticscholar   +1 more source

Harmonic Injection-Based Torque Ripple Reduction of PMSM With Improved DC-Link Voltage Utilization

IEEE transactions on power electronics, 2023
This letter proposes an improved scheme for torque ripple reduction of permanent-magnet synchronous machines (PMSMs) considering dc-link voltage utilization.
Lijian Wu, Zekai Lyu
semanticscholar   +1 more source

Considerations on probabilistic harmonic voltages

2003 IEEE Power Engineering Society General Meeting (IEEE Cat. No.03CH37491), 2004
Some considerations on probabilistic harmonic voltages are given. Reference is made to modeling both for provisional analyses and to measurements for compliance with limits fixed by standards. Numerical and experimental case-studies are developed and analyzed.
LANGELLA, Roberto, TESTA, Alfredo
openaire   +2 more sources

A Sinusoidal Current Control Strategy Based on Harmonic Voltage Injection for Harmonic Loss Reduction of PMSMs With Non-Sinusoidal Back-EMF

IEEE transactions on industry applications, 2020
In permanent magnet synchronous machine design, a limited number of stator and rotor slots distorts the air-gap flux distribution and its effective length. It causes machine parameters to vary with the rotor position.
Heonyoung Kim, Yong-Su Han, Kibok Lee, S. Bhattacharya   +3 more
semanticscholar   +1 more source

Harmonic study in electromagnetic voltage transformers

2012 IEEE International Symposium on Industrial Electronics, 2012
Ferroresonance is a complex electrical phenomenon which may cause overvoltages and overcurrents in electrical power system disturbing the system reliability and continuous safe operating. The ability to predict or confirm ferroresonance depends primarily on the accuracy of the voltage transformer model used in the computer simulation. In this study, at
Hamid Radmanesh, Seyed Hossein Hosseinian, Seyed Hamid Fathi   +2 more
openaire   +2 more sources

Mitigation of Harmonic Voltage Amplification in Offshore Wind Power Plants by Wind Turbines With Embedded Active Filters

IEEE Transactions on Sustainable Energy, 2020
In this paper, active filters are embedded in the grid-connected converter control of Type-IV wind turbines to reduce harmonic voltage amplification in offshore wind power plants (WPPs).
Emerson Guest, K. Jensen, T. W. Rasmussen   +2 more
semanticscholar   +1 more source

A Harmonic Time-Current-Voltage Directional Relay for Optimal Protection Coordination of Inverter-Based Islanded Microgrids

IEEE Transactions on Smart Grid, 2021
Inverter-interfaced distributed generators (IIDGs) are characterized by their low fault current contributions that impose a major challenge for microgrid protection.
W. El-Sayed, M. Azzouz, H. Zeineldin, E. Elsaadany   +3 more
semanticscholar   +1 more source