Results 81 to 90 of about 2,450 (157)

On the one loop $\gamma^{(*)}\to q\bar{q}$ impact factor and the exclusive diffractive cross sections for the production of two or three jets [PDF]

, 2016
We present the calculation of the impact factor for the $\gamma^{(*)}\to q\bar{q}$ transition with one loop accuracy in arbitrary kinematics. The calculation was done within Balitsky's high energy operator expansion. Together with our previous result for
Boussarie, R., Grabovsky, A. V., Szymanowski, L., Wallon, S.   +3 more
core   +2 more sources

A novel and easy‐to‐implement modulation scheme for reducing modulation complexity in modular multilevel converter

IET Power Electronics, Volume 17, Issue 15, Page 2358-2368, 25 November 2024.
This paper presents a novel and easy‐to‐implement modulation strategy for modular multilevel converters that simplifies both hardware design and application. By setting up a flexible insertion and removal submodule and proposing a capacitor voltage balance algorithm based on duty ratio allocation, the proposed modulation method can allow for the ...
Zichen Wang, Zhijie Liu, Ke‐Jun Li, Jinxin Dou, Zhonglin Guo, Xiaoxue Ge   +5 more
wiley   +1 more source

Improvement of LVRT capability of grid‐connected wind‐based microgrid using a hybrid GOA‐PSO‐tuned STATCOM for adherence to grid standards

IET Renewable Power Generation, Volume 18, Issue 15, Page 3218-3238, 16 November 2024.
The study addresses stability challenges during low‐voltage ride‐through events in weak AC grid‐connected doubly fed induction generator systems within wind power‐based microgrids. Grasshopper optimization algorithm (GOA), particle swarm optimization (PSO), and a novel hybrid GOA‐PSO are used to optimize a static synchronous compensator (STATCOM) for ...
Muhammad Zubair Yameen, Zhigang Lu, Muhammad Amir Akram Rao, Alsharef Mohammad, Nasimullah, Waqar Younis   +5 more
wiley   +1 more source

Power quality improvement of grid‐connected solar power plant systems using a novel fractional order proportional integral derivative controller technique

IET Renewable Power Generation, Volume 18, Issue 15, Page 3268-3284, 16 November 2024.
Integrate renewable energy system (RES) into grid‐connected load system in enhancing reliability and reducing losses. However, integrating these systems introduce power quality (PQ) issues, especially with non‐linear, critical, and imbalanced loads. Addressing this, a hybrid mantis search‐reptile search algorithm combined with a unified power quality ...
Hariprabhu Manoharan, Sundararaju Karuppannan, Kumar Chandrasekaran, Sourav Barua   +3 more
wiley   +1 more source

Regulating DC link voltage fluctuations on a grid connected wave power system using energy storage [PDF]

, 2011
The fluctuating nature of power generated from waves combined with the weak nature of the network, makes the connection of arrays of wave energy converters (WECs) to the network a challenge.
Finney, S. J., Jones, C. E., Parry, C. S.   +2 more
core   +1 more source

Selective harmonic elimination in PUC‐5 multilevel inverter using hybrid IGWO‐DE algorithm

Engineering Reports, Volume 6, Issue 10, October 2024.
The inverter switching can be done at a low frequency using the Selective Harmonic Elimination (SHE) technique, and the unwanted harmonics can be significantly reduced; however, the issue with SHE is solving the transcendental equations and determining the optimum switching angle.
Zaid Sifat, Md Tahmid Hussain, Mohd Anas Khan, Md Shahbaz Hussain, Adil Sarwar, Mohd Tariq, Mehedi Hasan   +6 more
wiley   +1 more source

Power quality solutions for rail transport using AI-based unified power quality conditioners

Discover Applied Sciences
This paper proposes an artificial intelligence-based Unified Power Quality Conditioner (AI-UPQC) and a unique Dynamic K-factor PI (DKPI) algorithm for PI-UPQC to address power quality issues in electrified railway systems.
D. K. Nishad, A. N. Tiwari, Saifullah Khalid, Sandeep Gupta   +3 more
doaj   +1 more source

Power Quality Improvement and Low Voltage Ride through Capability in Hybrid Wind-PV Farms Grid-Connected Using Dynamic Voltage Restorer [PDF]

, 2018
© 2018 IEEE. Translations and content mining are permitted for academic research only. Personal use is also permitted, but republication/redistribution requires IEEE permission.This paper proposes the application of a dynamic voltage restorer (DVR) to ...
Allaoui, Tayeb, Benali, Abdelkrim, Denai, Mouloud, Khiat, Mounir   +3 more
core   +2 more sources

A coordination control between energy storage based DVR and wind turbine for continuous fault ride‐through

IET Renewable Power Generation, Volume 18, Issue 14, Page 2560-2574, 26 October 2024.
An innovative adaptive mode switching scheme has been introduced for DVR, primarily focused on minimizing the amplitude of injected voltage. A variable coordination coefficient that takes into account the margin of ESS regulation power and rotor inertia is introduced, which reduces ESS compensation capacity in DVR. Impedance‐based model considering the
Xunjun Chen, Guangchao Geng, Quanyuan Jiang   +2 more
wiley   +1 more source

Power Quality Investigation by Reduced Switching UPQC

European Journal of Electrical Engineering, 2020
In this paper, nine switches UPQC topology with different control techniques have been depicted and compared their performances to accomplish clear inspection of the best control techniques. As conventional UPQC having twelve switches of six legs enhances the switching losses, circuit complication, costly etc.
openaire   +2 more sources