Results 31 to 40 of about 4,287,450 (289)

Model Predictive Current Control for Fault-Tolerant Bidirectional Voltage Source Converter With Open Circuit Fault and Unbalanced Grid Voltage

IEEE Access, 2020
To improve the fault-tolerant operation capability of bidirectional voltage source converter (BVSC), an improved model predictive current control (IMPCC) for fault-tolerant BVSC, is proposed with balanced DC-link capacitor voltage under unbalanced grid ...
Shiyang Hu, Guorong Liu, Nan Jin, Leilei Guo   +3 more
doaj   +1 more source

Impact of Inter-Turn Short Circuit in Excitation Windings on Magnetic Field and Stator Current of Synchronous Condenser under Unbalanced Voltage

Energies, 2023
Inter-turn short circuit in the excitation windings of synchronous condensers is a common fault that directly impacts their normal operation. However, current fault analysis and diagnosis of synchronous condensers primarily rely on voltage-balanced ...
Junqing Li, Chengzhi Zhang, Yuling He, Xiaodong Hu, Jiya Geng, Yapeng Ma   +5 more
doaj   +1 more source

Influence of unbalanced operation time means and uneven buffer allocation on unreliable merging assembly line efficiency

International Journal of Production Research, 2018
Unbalanced, unreliable (UR), unpaced, merging assembly lines are simulated in this study with varying line lengths, buffer storage capacities, imbalance degrees and unequal mean operation time configurations and uneven buffer capacity (BC) allocation ...
Rodrigo Romero-Silva, S. Shaaban
semanticscholar   +1 more source

Vibration Control of Tie Rod Rotors With Optimization of Unbalanced Force and Unbalanced Moment

IEEE Access, 2020
This paper proposes a method for optimizing unbalanced force and unbalanced moment of the multistage disk based on sequence quadratic program algorithm to solve the vibration problem of gas turbine tie rod rotor.
Yipeng Zhang, Lidong He, Jianjiang Yang, Jian Wang, Gang Zhu   +4 more
doaj   +1 more source

Sideband Harmonic Suppression Analysis Based on Vector Diagrams for CHB Inverters Under Unbalanced Operation

IEEE transactions on industrial electronics (1982. Print)
Unexpected sideband harmonics of the cascaded H-bridge (CHB) inverters will appear in unbalanced conditions among cells and may result in harmonic pollution and even harmonic resonance.
N. Jiao, Shunliang Wang, Junpeng Ma, Tianqi Liu, Dao Zhou   +4 more
semanticscholar   +1 more source

Optimal Reconfiguration of Bipolar DC Networks Using Differential Evolution

Energies
The search for more efficient power grids has led to the concept of microgrids, based on the integration of new-generation technologies and energy storage systems.
Wesley Peres, Raphael Paulo Braga Poubel
doaj   +1 more source

The centered ternary balance scheme: A technique to visualize surfaces of unbalanced three-part compositions

Demographic Research, 2021
Background: The ternary balance scheme is a visualization technique that encodes three-part compositions as a mixture of three primary colors. The technique works best if the compositional data are well spread out across the domain but fails to show ...
Jonas Schöley
doaj   +1 more source

Discriminating Between Capacitor Bank Faults and External Faults for an Unbalanced Current Protection Relay Using DWT

IEEE Access, 2020
Capacitor faults are a common issue in modern-day power systems. Such systems employ a traditional mechanism that solely relies on unbalanced relays as an indicator of faults in capacitor banks; however, in the case of a relay trip, operators may find it
Praikanok Lertwanitrot, Atthapol Ngaopitakkul   +1 more
doaj   +1 more source

Three-Phase Unbalanced Linear Power Flow Calculation Based on Voltage Magnitude Logarithmic Transformation

Zhongguo dianli, 2022
The linear power flow calculation method can provide better robustness and higher efficiency for active distribution network analysis and operation regulation.
Hongwei LI, Li PAN, Lu HAN, Mingrui GE
doaj   +1 more source

A Comprehensive Review of Compensation Control Techniques Suitable for Cascaded H-Bridge Multilevel Inverter Operation with Unequal DC Sources or Faulty Cells

Energies
A cascaded H-bridge multilevel converter topology is the ultimate solution for energy conversion in various industrial applications due to its exceptional features, such as high modularity and fault-tolerant capability.
Pascal M. Lingom, Joseph Song-Manguelle, Jean Maurice Nyobe-Yome, Mamadou L. Doumbia   +3 more
doaj   +1 more source