Mathematical Modeling of Transient Processes in the Susceptible Motion Transmission in a Ship Propulsion System Containing a Shaft Synchronous Generator

Chaban, Andriy; Perzyński, Tomasz; Popenda, Andrzej; Figura, R.; Levoniuk, Vitaliy

doi:10.3390/en15093266

Cited by 5 publications

(3 citation statements)

References 31 publications

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“…The model is mainly used for small signal analysis of multi-generator power systems. In power systems, the synchronous generator (SG) is represented by a third-order model, where the excitation power unit is represented by a first-order model 21 . Assuming that all turbines in a wind farm have the same type and operating conditions, turbine parameters can be approximated to the calculated parameters of a single turbine 22 .…”

Section: Dynamic Modelingmentioning

confidence: 99%

Effect of DFIG control parameters on small signal stability in power systems

Liu

Wang

et al. 2023

Sci Rep

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The doubly-fed induction generator (DFIG) with virtual inertia control and reactive damping control gives a renewable energy generation system inertia and damping characteristics similar to those of a thermal power plant, and the parameters of the control strategy have a direct impact on the small-signal stability of the system. This paper firstly introduces the operating characteristics and control strategies of DFIG-based damping control and virtual inertia control, establishes a small-signal model of the control-based DFIG integrated interconnected system, and investigates the effects of virtual inertia and reactive damping values on the small-signal stability of the system; then, the maximum damping ratio of the interval oscillation mode in small disturbance analysis is taken as the optimization objective, and the control parameters are the optimization variables. An optimization method of inertia and damping parameters is established for improving the small disturbance stability of the system. The results show that the optimization procedure could improve the damping ratio of the interval oscillation mode while ensuring the system frequency. The effects of virtual inertia and reactive damping values on the small signal stability of the system are investigated, and an optimal allocation model and method for virtual inertia used to improve the small disturbance stability of the system is proposed.

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Section: Dynamic Modelingmentioning

confidence: 99%

Effect of DFIG control parameters on small signal stability in power systems

Liu

Wang

et al. 2023

Sci Rep

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“…This dissertation [ 7 , 8 , 9 ] shows a mathematical model of the transmission line that is based on the methods of lost elements and the space state of the line. The method that is introduced is an uncomplicated and practical procedure for modeling the three-phase transmission line directly in the time domain without explicit usage of inverse transforms.…”

Section: Examination Of a Recent Studymentioning

confidence: 99%

“…Indeed, this work has been underway for a long time. Commonly used approaches require well-defined boundary conditions for the long line equation [ 6 , 10 , 13 , 18 ], or they are burdened by analytical integration [ 7 , 8 , 9 ]. With regard to the MatLab/Simulink software package, the distributed parameter line model built into the Simulink library is made easy.…”

Section: Examination Of a Recent Studymentioning

confidence: 99%

Transient Electromagnetic Processes Analysis in High Voltage Transmission Lines during Two-Phase Short Circuits

Perzyński

Levoniuk

Figura

2022

Sensors

Self Cite

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The mathematical model of a fragment of a high-voltage electric network is developed in this paper. The network consists of a long power line with distributed parameters and an equivalent three-phase active-inductive load. Neumann and Robin—Poincare boundary conditions were used to identify the boundary conditions for the long line equation. The parameter output voltage (voltage at the end of the line) is introduced into the paper for further universal use of the developed line model. On the basis of the developed mathematical model, the program code is written in the algorithmic language Visual Fortran. By means of it, oscillograms of transient electromagnetic processes of voltages and currents in the form of spatial, temporal and temporal-spatial distributions during remote two-phase short circuits in the transmission line of high voltage are obtained. Two transient electromagnetic processes are analyzed in the present work. The first one was analyzed during the switching on of the line to the normal mode of operation with the subsequent transition to the emergency mode. The second one was analyzed during the switching on the line in the mode of a remote two-phase short circuit to the ground. The results of transient electromagnetic process simulation in the form of analyzed figures are shown. All the results presented in this paper were obtained exclusively using numerical methods.

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Multibody dynamic study and optimization for a flexible support shaft system in unmanned underwater vehicle

An,

Liu,

Liu

et al. 2024

Proceedings of the Institution of Mechanical Engineers, Part K:

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This paper presented a multibody dynamic model for the shaft system in an unmanned underwater vehicle (UUV), the model considers the flexible coupling, ball bearing and flexible support. The stiffness characteristics of flexible coupling are calculated by using the finite-element analysis. The effects of load condition, bearing location and support stiffness on shaft vibrations are investigated. Then, an optimization for the bearing locations and support stiffness is conducted. This study provides some guidance for the design and vibration optimization of the shaft system in UUVs.

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Mathematical Modeling of Transient Processes in the Susceptible Motion Transmission in a Ship Propulsion System Containing a Shaft Synchronous Generator

Cited by 5 publications

References 31 publications

Effect of DFIG control parameters on small signal stability in power systems

Effect of DFIG control parameters on small signal stability in power systems

Transient Electromagnetic Processes Analysis in High Voltage Transmission Lines during Two-Phase Short Circuits

Multibody dynamic study and optimization for a flexible support shaft system in unmanned underwater vehicle

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