Results 81 to 90 of about 35,595 (177)

Circulating Current Suppression in Modular Multilevel Converters Based on Hybrid Model Predictive Control

World Electric Vehicle Journal
The modular multilevel converter (MMC) has unique topological characteristics and has gained significant popularity in medium-voltage applications. However, during MMC operation, circulating currents inevitably arise, exacerbating arm current distortion,
Xin Gu, Wenxuan Zhao, Guozheng Zhang, Xuqing Yao, Xuefeng Jin, Wei Chen, Chen Li   +6 more
doaj   +1 more source

φ-weakly second submodules

, 2022
Let R be a commutative ring with identity and M be an R-module. A non-zero submodule N of M is said to be a weakly second submodule if rsN⊆K, where r,s∈R and K is a submodule of M, implies either rN⊆K or sN⊆K. In this paper we introduce and study the concept of φ-weakly second submodules which are generalizations of weakly second submodules. Let φ:S(M)→
openaire   +1 more source

ControlIt: A Universal Framework for Translational, Adaptive, and Online Brain–Computer Interfaces

Advanced Intelligent Systems, Volume 8, Issue 4, April 2026.
Brain–computer interfaces (BCIs) lack a unified platform that works across signals and algorithms. ControlIt, an open‐source, modular ROS2‐based BCI framework supporting electroencephalography (EEG), electrocorticography (ECoG), and spike‐based decoding across both classification and regression tasks is presented.
Wanlin Yang, Chenyang Li, Xinxiu Xu, Xindong Wang, Yongcheng Guo, Xiaoke Chai, Tianqin Cao, Jiuxiang Song, Nan Wang, Xueming Zhang, Yi Yang, Cong Zheng, He Cui   +12 more
wiley   +1 more source

Keyframe recommendation based on feature intercross and fusion

Complex & Intelligent Systems
Keyframe extraction can effectively help users quickly understand video content. Generally, keyframes should be representative of the video content and simultaneously be diverse to reduce redundancy.
Guanci Yang, Zonglin He, Zhidong Su, Yang Li, Bingqi Hu   +4 more
doaj   +1 more source

Finite-Time Synchronization and Mittag–Leffler Synchronization for Uncertain Fractional-Order Delayed Cellular Neural Networks with Fuzzy Operators via Nonlinear Adaptive Control

Fractal and Fractional
This paper investigates a class of uncertain fractional-order delayed cellular neural networks (UFODCNNs) with fuzzy operators and nonlinear activations.
Hongguang Fan, Kaibo Shi, Zizhao Guo, Anran Zhou, Jiayi Cai   +4 more
doaj   +1 more source

Optimized Control for MMCs with Reduced Power Loss and Extended Lifetime

International Transactions on Electrical Energy Systems
Modular multilevel converters (MMCs) are widely applied to medium and high voltage occasions. The total power consumption of the submodule (SM) and the maximum power consumption of power devices in the SM are related to the operating costs and lifetime ...
Jifeng Zhao, Jia Pei, Yun Sun, Rujin Wang, Jun Hang, Shichuan Ding   +5 more
doaj   +1 more source

Integrated optimization of loss distribution and capacitor voltage ripple for MMC devices

电力工程技术
Under inverter operating conditions, significant loss is incurred by the insulated gate bipolar transistor (IGBT) (referred to as T2 tube) in the lower part of the half-bridge submodule.
SU Tiantian, LU Maozeng, MA Xinxi, ZHAO Yanlei, ZHANG Housheng   +4 more
doaj   +1 more source

On Graded 2-Absorbing Second Submodules of Graded Modules over Graded Commutative Rings

Kragujevac Journal of Mathematics
In this paper, we introduce the concepts of graded 2-absorbing second and graded strongly 2-absorbing second submodules. A number of results concerning these classes of graded submodules are given.
Al-Zoubi, Khaldoun, Al-Azaizeh, Mariam
openaire   +2 more sources

Integrated operation control technology of MMC high and low voltage ride-through under weak grid

电力工程技术
In order to solve the problem of high and low voltage fault ride-through of modular multilevel converter （MMC） under weak grid，a multi-link control strategy including capacitance voltage balancing control of integral，phase-to-phase and upper and lower ...
Wenzhong MA, Muzi SUN, Yusheng WANG, Wenyan ZHANG, Hengshuo LI, Yaheng ZHU   +5 more
doaj   +1 more source

Alternate modules are subsymplectic

, 2016
In this paper, an alternate module $(A,\phi)$ is a finite abelian group $A$ with a $\mathbb{Z}$-bilinear application $\phi:A\times A\rightarrow \mathbb{Q}/\mathbb{Z}$ which is alternate (i.e. zero on the diagonal).
Guerin, Clement
core