Results 31 to 40 of about 3,030 (279)

Synchronization signal extraction method based on enhanced DSSOGI-FLL in power grid distortion

Systems Science & Control Engineering, 2018
With the development of new energy, three-phase grid connected converter has been widely applied. In order to meet the requirement of synchronous signals extraction under the condition of asymmetry, dc components and harmonic distortion, the positive and
Xuhu Ren, Zhengyang Lyu, Dewen Li, Zhen Zhang, Shengkun Zhang   +4 more
doaj   +1 more source

PMSM position-sensorless control method for optimizing fluctuating high-frequency signal injection

Xi'an Gongcheng Daxue xuebao, 2023
In the position sensorless control method of permanent magnet synchronous motor (PMSM) based on fluctuating high-frequency signal injection, the use of band pass filter (BPF) increases the system phase delay, resulting in poor observation performance, we
ZHANG Lei, WANG Kaifeng, LI Pengfei, XU Yanhui   +3 more
doaj   +1 more source

The Virtual Harmonic Power Droop Strategy to Mitigate the Output Harmonic Voltage of the Inverter

Energies, 2018
The harmonic voltage issue becomes a challenge for a distributed generation system. Considering that droop control is the most common control algorithm used in the distributed system, a virtual harmonic power droop strategy which aims to mitigate the ...
Yuan Yao, Longyun Kang
doaj   +1 more source

A New Hybrid Synchronization PLL Scheme for Interconnecting Renewable Energy Sources to an Abnormal Electric Grid

Mathematics, 2022
Today, and especially with the growing interest in distributed renewable energy sources (DRESs), modern electric power systems are becoming more and more complex. In order to increase DRES penetration, grid side converter (GSC) control techniques require
Mansoor Alturki, Rabeh Abbassi, Abdullah Albaker, Houssem Jerbi   +3 more
doaj   +1 more source

A Subthreshold Second-Order Integration Circuit for Versatile Synaptic Alpha Kernel and Trace Generation

Proceedings of the 2023 International Conference on Neuromorphic Systems, 2023
In neuromorphic hardware the choice of synaptic kernels and trace dynamics are key for the correct system abstraction and representation of information. This paper presents a novel second-order integration circuit for the implementation of traces and kernels, the Second-order Differential Pair Integrator (SoDPI).
Richter, Ole, Greatorex, Hugh, Hucko, Benjamin, Cotteret, Madison, Soares Girao, Willian, Janotte, Ella, Mastella, Michele, Chicca, Elisabetta   +7 more
openaire   +1 more source

Zero-Sequence Current Suppression for Open-Winding Permanent Magnet Brushless Motor Driving System Based on Second Order Generalized Integrator

IEEE Access, 2020
The open-winding driving system can improve power density and torque output capacity of the motor. However, the open-winding topology with a common direct current (DC) power supply provides a path for the zero-sequence current, which contributes to the ...
Qing Lu, Yuefei Zuo, Tao Zhang, Lihong Mo   +3 more
doaj   +1 more source

A New Approach to Fourth-Order Quadrature Signal Generation for a Fast and Noise-Free PLL Output Under Non-Ideal Grid Voltage Conditions

IEEE Access, 2022
Dual quadrature signal generator (QSG) along with a positive sequence calculator (PSC) eliminates the negative sequence components from unbalanced grid voltages.
Bishal Mondal, B. Arun Karuppaswamy
doaj   +1 more source

Phase-Locked Loop Research of Grid-Connected Inverter Based on Impedance Analysis

Energies, 2018
In order to improve the phenomenon that a traditional phase-locked loop based on a double second-order generalized integrator (DSOGI-PLL) cannot track signal amplitude and phase accurately when the input signal contains DC components and high-order ...
Yuxia Jiang, Yonggang Li, Yanjun Tian, Luo Wang   +3 more
doaj   +1 more source

Quadrature Signal Generator with Improved Dc Offset Compensation

Advances in Electrical and Computer Engineering, 2021
In this paper a second order generalized integrator (SOGI) based quadrature signal generator (QSG) is proposed with the improved DC offset compensation parameter tuning procedure.
STOJIC, D.
doaj   +1 more source

The (Glg)ABCs of cyanobacteria: modelling of glycogen synthesis and functional divergence of glycogen synthases in Synechocystis sp. PCC 6803

FEBS Letters, EarlyView.
We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee, Dimitrios Bekiari, Sofia Doello, Karl Forchhammer   +3 more
wiley   +1 more source