Results 21 to 30 of about 9,364,788 (352)

Modeling and Control Parameters Design for Grid-Connected Inverter System Considering the Effect of PLL and Grid Impedance

IEEE Access, 2020
Small-signal stability problems often occur when the inverter for renewable energy generation is connected to weak grid. A small-signal transfer function integrated model reflecting the interaction of grid impedance, phase locked-loop (PLL), and current ...
Zhiwei Xie, Yandong Chen, Wenhua Wu, Yuancan Xu, Haining Wang, Jian Guo, An Luo   +6 more
doaj   +1 more source

Bipolar DC Power Conversion: State-of-the-Art and Emerging Technologies

IEEE Journal of Emerging and Selected Topics in Power Electronics, 2021
This article provides a detailed analysis of the power electronics solutions enabling bipolar dc grids. The bipolar dc grid concept has proven to be more efficient, flexible, and higher in quality than the conventional unipolar one.
S. Rivera, R. Lizana F., S. Kouro, T. Dragičević, Bin Wu   +4 more
semanticscholar   +1 more source

Modified Passivity-Based Control for LCL-Filtered Grid-Tied Inverter with Output Admittance Reshaping

Journal of Control Science and Engineering, 2023
As a nonlinear control method, the Euler–Lagrange- (EL-) based passivity-based control (PBC) has been studied for grid-tied converters based on energy function to achieve better performance.
Han Wang, Gang Shi, Jianwen Zhang, Miao Zhu, Xu Cai   +4 more
doaj   +1 more source

Circuit Structure and Control Method to Reduce Size and Harmonic Distortion of Interleaved Dual Buck Inverter [PDF]

, 2020
A new circuit structure and control method for a high power interleaved dual-buck inverter are proposed. The proposed inverter consists of six switches, four diodes and two inductors, uses a dual-buck structure to eliminate zero-cross distortion, and ...
Cho, Min-Gi, Choi, Yoon-Geol, KANG, BONG KOO, Lee,Hyeon-Seonk, Lee,Sang-Hoon   +4 more
core   +1 more source

Optimized Resonators for Piezoelectric Power Conversion

IEEE Open Journal of Power Electronics, 2021
The performance of inductors at high frequencies and small sizes is one of the largest limiting factors in the continued miniaturization of dc-dc converters.
Weston D. Braun, Eric A. Stolt, Lei Gu, J. Segovia-Fernandez, S. Chakraborty, Ruochen Lu, J. Rivas-Davila   +6 more
semanticscholar   +1 more source

Comparison of DC linear and non-linear models for multi-terminal VSC HVDC networks

The Journal of Engineering, 2019
The analysis and control design of multi-terminal VSC-HVDC systems requires a linearised model of these inherently non-linear systems. This paper develops such a model, from converter to multi-terminal system, discusses the key concepts and shows its use
Jesus Carmona-Sanchez, Ognjen Marjanovic, Mike Barnes, Wenyuan Wang   +3 more
doaj   +1 more source

75%-efficiency blue generation from an intracavity PPKTP frequency doubler [PDF]

, 2004
We report on a high-efficiency 461 nm blue light conversion from an external cavity-enhanced second-harmonic generation of a 922 nm diode laser with a quasi-phase-matched KTP crystal (PPKTP).
Arie, Ashkin, Baggio, Beier, Bierlein, Bode, Boulanger, Boyd, Chu, Courtillot, Douillet, Fradkin, Goudarzi, Hansson, Hemmerich, J.-J. Zondy, Juwiler, Kato, Klappauf, Kozlovsky, Li, Ludlow, Mabuchi, Nakamura, P. Lemonde, Pelz, Pierrou, Polzik, R. Le Targat, Schwedes, Shoji, White, Woll, Zeppini, Zondy, Zondy, Zysset   +36 more
core   +3 more sources

Research on equivalent thermal network modeling for rare-earth giant magnetostrictive transducer

Scientific Reports, 2022
Of crucial importance for giant magnetostrictive transducers (GMTs) design is to quickly and accurately analysis the temperature distribution. With the advantages of low calculation cost and high accuracy, thermal network modelling has been developed for
Zhihe Zhang, Xin Yang, Yukai Chen
doaj   +1 more source

Branch Voltage Balancing Control Strategy Based on the Transfer Power Model by Zero-Sequence Circulating Current for the Hexverter

IEEE Access, 2022
This paper proposes a novel branch voltage-balancing control strategy for a hexagonal converter (Hexverter). First, the state-space model based on the double-dq transformation is analyzed in-depth along with the necessary basic mathematical derivation ...
Yang Yi, Gang Yang, Chong Qian, Yaojie Gui   +3 more
doaj   +1 more source

A comprehensive review of planning, modeling, optimization, and control of distributed energy systems

Carbon Neutrality, 2022
Distributed energy system, a decentralized low-carbon energy system arranged at the customer side, is characterized by multi-energy complementarity, multi-energy flow synergy, multi-process coupling, and multi-temporal scales (n-M characteristics).
Junhong Hao, Yongping Yang, Chao Xu, Xiaoze Du   +3 more
doaj   +1 more source