Results 51 to 60 of about 500 (164)

Damping of Low‐Frequency Oscillations in Grid‐Forming DFIG Employing the Swing Equation

Electronics Letters, Volume 61, Issue 1, January/December 2025.
For a grid‐forming doubly fed induction generator that employs a swing equation, low‐frequency oscillations may easily manifest. To address this issue, this article develops an active‐damping control. ABSTRACT For a grid‐forming (GFM) doubly‐fed induction generator (DFIG) that employs a swing equation, low‐frequency oscillations may easily manifest ...
Yun Yu, Yajuan Guan, Solomon Mamo Banteywalu, Juan C. Vasquez, Josep M. Guerrero   +4 more
wiley   +1 more source

A sensorless control scheme based on fractional order super-twisting algorithm and improved FLL for PMSM

Advances in Mechanical Engineering
To further improve the accuracy of sensorless control at medium and high speeds for permanent magnet synchronous motor (PMSM) and expand its applicability, this paper proposes a new scheme that uses a sliding mode observer and a frequency-locked loop ...
Liqun Huangfu, Cen Chen, Tao Zhang
doaj   +1 more source

A prefilter to improve the performance of transfer delay-based synchronization technique under distorted grid conditions

Energy Reports, 2020
The transfer delay-based adaptive frequency-locked loop (TD-AFLL) is a recently proposed synchronization technique. It has fast respond speed in ideal grid, but the performance degrades significantly in distorted grid.
Jinbo Li, Qin Wang, Lan Xiao, Zehao Liu, Qunfang Wu, Zhihua Liu   +5 more
doaj   +1 more source

Direct Voltage Measurement for Sensorless Control of Single‐Stage Current Source Inverter in Motor Drive Applications

IET Power Electronics, Volume 18, Issue 1, January/December 2025.
For applications that must operate above a base speed, such as more electric aircraft (MEA), single‐stage CSI converters (i.e., CSI without pre‐stage converter) are a promising solution. The ability to directly measure the terminal voltages allows for a simple and robust sensorless control approach to be used with this power converter is taken into ...
Emilio Carfagna, Giovanni Migliazza, Giampaolo Buticchi, Emilio Lorenzani   +3 more
wiley   +1 more source

Frequency Locked Loop Based on the Time Nonrecursive Processing

, 2018
This paper describes one new approach to frequency locked loop (FLL), which is based on the time non-recursive processing of input periods. System parameters are defined by the ratio of frequencies.
Perisic, Djurdje M., Kovacevic, Branko, Petrovic, Vera   +2 more
core   +1 more source

A Novel Hybrid Control Approach for Frequency and Voltage Regulation in IPT Systems

IET Power Electronics, Volume 18, Issue 1, January/December 2025.
This paper presents a novel hybrid control strategy that integrates a phase‐locked loop utilising the second‐order generalised integrator (SOGI‐PLL) with phase shift control. The proposed method effectively maintains the stability of the output voltage and the resonant state of the system by concurrently adjusting the operating frequency and the phase ...
Mohammadreza Kiyani, Seyed Ehsan Abdollahi, Seyedreza Abdollahi, Barmak Baigzadehnoe   +3 more
wiley   +1 more source

Grid-voltage Synchronization Algorithms Based on Phase-locked Loop and Frequency-locked Loop for Power Converters [PDF]

, 2014
The purpose of this thesis is to study and find the appropriate grid-voltage synchronization method for grid-connected converters under different kinds of faults like phase unbalancing, harmonics, offset and voltage sags.
Fuad, Khaled
core  

PMSM Position Sensorless Control Based on Improved Second-Order SOIFO

World Electric Vehicle Journal
Due to detection errors, motor parameter deviations, and other uncertainties, traditional motor flux estimation models suffer from the complications of DC bias and high-order harmonics.
Ge Song, Hongyu Ni, Wenyuan Wang, Wenxu Yan   +3 more
doaj   +1 more source

A Novel Sliding Mode Control Strategy of the Grid‐Connected Inverter Under Unbalanced Grid Voltage

IET Smart Grid, Volume 8, Issue 1, January/December 2025.
The manuscript presents a novel sliding mode control strategy of the grid‐connected inverter to achieve the objectives of maintaining DC voltage stability and suppressing negative sequence current under unbalanced grid voltage. The novel sliding mode control strategy can improve the system response speed and weaken the inherent chattering of the SMC ...
Shiqi Wang, Guangchen Liu, Yuanyuan Wu, Guizhen Tian, Jianwei Zhang, Shunli Wang, Fangsheng Wang, Sen Su   +7 more
wiley   +1 more source

Analysing the ML‐Based Algorithms for GNSS Data Bit Synchronization and Decoding

International Journal of Antennas and Propagation, Volume 2025, Issue 1, 2025.
The position, velocity, and time global navigation satellite systems are vulnerable to signal interference, distortion, jamming, and multipath, which could potentially render the entire system inoperable due to the generally weak signal strength in these conditions.
Bheki Madonsela, Emmanuel Wanyama Mukubwa, Innocent E. Davidson, Giulio Maria Bianco   +3 more
wiley   +1 more source