Results 41 to 50 of about 178 (143)

Non‐linear coordinated control of LPMG‐based direct drive wave energy conversion system with supplementary energy storage system based on feedback linearization

IET Renewable Power Generation, Volume 18, Issue 15, Page 3077-3090, 16 November 2024.
This manuscript proposes a novel non‐linear coordinated control scheme for the direct drive wave energy conversion system (DDWECS) with a supplementary energy storage system (SESS) for grid integration. The control scheme aims to improve the dynamic performance under perpetual fluctuations of ocean waves and coordinate the machine‐side subsystem, the ...
Yiyan Sang, Jiamin Sheng, Hua Xue, Yufei Wang, Qigang Wu   +4 more
wiley   +1 more source

Effect of Resistance Training Volume on Muscular Strength, Stability and Mobility in Sedentary Obese Elderly Women [PDF]

Elderly Health Journal
Introduction: There is limited knowledge regarding how different resistance training (RT) volumes affect musculoskeletal fitness adaptations. Hence, our study compared the efficacy of varied RT volumes in enhancing maximal strength, stability, and ...
Hossein TaheriChadorneshin, Esmat Rashidi, Nader Nokhodchi, Zeinab Fattahi   +3 more
doaj  

The Virtual Resistance Control Strategy for HVRT of Doubly Fed Induction Wind Generators Based on Particle Swarm Optimization [PDF]

Mathematical Problems in Engineering, 2014
Grid voltage swell will cause transient DC flux component in the doubly fed induction generator (DFIG) stator windings, creating serious stator and rotor current and torque oscillation, which is more serious than influence of the voltage dip. It is found that virtual resistance manages effectively to suppress rotor current and torque oscillation, avoid
Zhen Xie, Xue Li
openaire   +1 more source

Improving the performance of grid‐connected inverters during asymmetrical faults and unbalanced grid voltages

IET Generation, Transmission &Distribution, Volume 18, Issue 19, Page 3097-3107, October 2024.
Short circuit faults and unbalanced grid voltage are severe transient events that inverters need to be able to pass through without disconnecting from the grid. This article proposes a voltage support control scheme to support grid voltage during asymmetrical voltage drop by utilizing an optimization problem.
Sepideh Shabani, Mehdi Gholipour, Mehdi Niroomand   +2 more
wiley   +1 more source

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

Transient overvoltage suppression of LCC‐HVDC sending‐end system based on DC current control optimisation

IET Energy Systems Integration, Volume 6, Issue 2, Page 182-195, June 2024.
Abstract The receiving‐end system AC fault of the line‐commutated‐converter‐based high voltage direct current (LCC‐HVDC) will lead to commutation failure of the inverter side. During the fault and its recovery, AC transient low voltage and transient overvoltage (TOV) will occur in the sending‐end system.
Yang Wang, Jianhang Zhu, Yingbiao Li, Jiabing Hu, Shicong Ma, Tiezhu Wang   +5 more
wiley   +1 more source

Fault Ride-Through Control Strategy for Variable Speed Pumped Storage Unit with Full-Size Converter

Applied Sciences
Fault ride-through is a prerequisite for ensuring continuous operation of a variable-speed pumped storage unit with a full-size converter (FSC-VSPU) and providing support for the renewable energy and power grid.
Huabo Shi, Lijie Ding, Xueyang Zeng, Yuhong Wang, Pengyu Pan, Gang Chen, Yangtao Liu, Jianquan Liao   +7 more
doaj   +1 more source

A hybrid virtual–real traffic simulation approach to reproducing the spatiotemporal distribution of bridge loads

Computer-Aided Civil and Infrastructure Engineering, Volume 39, Issue 11, Page 1699-1723, 1 June 2024.
Abstract Current traffic simulation approaches analyze vehicle loads and load effects from a statistical perspective; however, they fail to reproduce the spatiotemporal distribution of bridge loads and resultant load effects at every moment, hindering real‐time bridge health management.
Junyong Zhou, Wenrong Wu, Colin C. Caprani, Zeyin Tan, Bin Wei, Junping Zhang   +5 more
wiley   +1 more source

Review of High Voltage Ride-Through Control Method of Large-Scale Wind Farm

Shanghai Jiaotong Daxue xuebao
As the major demand for the development and utilization of new energy, the large-scale development of wind power is a key support in achieving the strategic goal of “cabron peaking and carbon neutrality” for China.
WEI Juan, LI Canbing, HUANG Sheng, CHEN Sijie, GE Rui, SHEN Feifan, WEI Lai
doaj   +1 more source

Wind farm HVRT capability improvement based on coordinated reactive power control strategy

The Journal of Engineering, 2017
Voltage swells after grid fault clearance is one of the major causes of large‐scale wind power tripping accidents in China. In this study, reasons that led to overvoltage phenomena were researched, and factors that influence the grid overvoltage during grid fault were quantitatively analysed through simulation.
Yuandong Zhang, Qing Li, Jinping Zhang, Shiyao Qin   +3 more
openaire   +1 more source