Fast time domain simulation of generic resonant mode power converter: mapping the stability region

2000 ◽  
Vol 147 (4) ◽  
pp. 211 ◽  
Author(s):  
A.D. Brown ◽  
S.C. Wong ◽  
A.C. Williams ◽  
T.J. Kazmierski
Keyword(s):  
Time Domain ◽  
Stability Region ◽  
Resonant Mode ◽  
Power Converter ◽  
Fast Time ◽  
Time Domain Simulation ◽  
The Stability

scholarly journals Fast Time-Domain Simulation for Reliable Fault Detection

2016 ◽  
Author(s):  
Bratislav Tasić ◽  
Jos J. Dohmen ◽  
Rick Janssen ◽  
E. Jan W. ter Maten ◽  
Roland Pulch ◽  
...  
Keyword(s):  
Fault Detection ◽  
Time Domain ◽  
Fast Time ◽  
Time Domain Simulation

scholarly journals OPTIMAL DESIGN OF MICROGRID IN AN AUTONOMOUS MODE USING ANTCOLONY OPTIMIZATION

2013 ◽  
pp. 14-18
Author(s):  
N. CHITRA ◽  
TAMIZHARASI. G ◽  
A. SENTHIL KUMAR
Keyword(s):  
Time Domain ◽  
Power Sharing ◽  
Time Domain Simulation ◽  
Stability And Control ◽  
Control Effectiveness ◽  
Damping Characteristics ◽  
Autonomous Mode ◽  
The Stability ◽  
And Control ◽  
Nonlinear Time Domain

The dynamic nature of the distribution network challenges the stability and control effectiveness of the microgrid in autonomous mode. In this paper, nonlinear model of microgrid operating in autonomous mode has been presented. The controller parameters and power sharing coefficients are optimized in case of autonomous mode. The control problem has been formulated as an optimization problem where Ant colony optimization is employed to search for optimal settings of the optimized parameters. In addition, nonlinear time-domain-based objective function has been proposed to minimize the error in the measured power and to enhance the damping characteristics, respectively. Finally, the nonlinear time-domain simulation has been carried out to assess the effectiveness of the proposed controllers under different disturbances and loading conditions. The results show satisfactory performance with efficient damping characteristics of the microgrid considered in this study.

scholarly journals Time Domain Simulation of Damage Flooding Considering Air Compression Characteristics

Water ◽  
2019 ◽  
Vol 11 (4) ◽  
pp. 796 ◽  
Author(s):  
XinLong Zhang ◽  
Zhuang Lin ◽  
Ping Li ◽  
Yue Dong ◽  
Fei Liu
Keyword(s):  
Time Domain ◽  
Time Domain Simulation ◽  
Cruise Ship ◽  
Accurate Analysis ◽  
Factors Affecting ◽  
Computational Fluid Dynamics Cfd ◽  
The Stability ◽  
Air Compression ◽  
Damaged Stability ◽  
Compression Characteristics

An accurate analysis of the entire flooding process is critical to assess the damaged stability when a ship encounters distressed accidents such as collision, stranding, or grounding. Among many factors affecting the flooding process and damaged stability, the complex effect of air compression is significant and worthy of further research. In this paper, through establishing scenarios of the damage flooding for a cruise ship, the commercial software CD Adapco STARCCM+ is applied to perform time domain simulation of flooding processes under different ventilation levels. The basic mathematical models about air compression and specific simulation settings of computational fluid dynamics (CFD) are presented in detail. The simulation results show that water ingression results in an increase of air pressure and density inside the flooded compartment. The corresponding air compression can significantly delay the flooding process if the ventilation level is limited to a certain ratio. Finally, the stability of the damaged ship is affected.

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