scholarly journals Research of an electromagnetic vibrator with a non-linear power supply

2020 ◽  
Vol 862 ◽  
pp. 062031
Author(s):  
M Ibadullaev ◽  
A Nuraliev ◽  
A Esenbekov
Keyword(s):  
Power Supply ◽  
Electromagnetic Vibrator ◽  
Non Linear

scholarly journals SIMULATION OF A STATIC SYNCHRONOUS COMPENSATOR FOR A POWER SUPPLY SYSTEM WITH A NON-LINEAR LOAD

2020 ◽  
pp. 116-124
Author(s):  
Aleksei V. Makarov ◽  
Valeriy G. Makarov ◽  
Tatiana V. Makarova ◽  
Aleksei A. Petrov
Keyword(s):  
Simulation Model ◽  
Power Supply ◽  
Power Supply System ◽  
Supply System ◽  
Static Synchronous Compensator ◽  
Nonlinear Load ◽  
Electromechanical Systems ◽  
Linear Load ◽  
Non Linear ◽  
Non Linear Load

The purpose of the work is developing a simulation model of factory’s the power system, with a nonlinear load model, which is a 12-pulses thyristor invertor and a model of a static synchronous compensator, which is multi-level voltage invertor, based on H-bridge invertor. Also defining preliminary parameters for the design of a static synchronous compensator in order to meet the requirements for power factors and limits of voltage harmonic and interharmonic distortion specified for the point of common connection to the mains supply. The analytical and numerical methods of mathematical programming and control of electromechanical systems were used. VisualStudio and PSIM software products for developing a control system for electromechanical systems and compiling a simulation model of an industrial power supply system were used. As a result of the research, a simulation model of the power supply system of an industrial enterprise, a model of a nonlinear load and a static synchronous compensator were developed. The rated power of the static synchronous compensator is determined to reduce the consumption of reactive power and the magnitude of the higher harmonics of the current, at the point of common connection, during operating a non-linear load.

The Simulation and Research of Chaos in Current-Controlled Boost DC / DC Converter

2011 ◽  
Vol 383-390 ◽  
pp. 553-557
Author(s):  
Wang Zhen ◽  
Xue Feng Liu
Keyword(s):  
Mathematical Model ◽  
Power Supply ◽  
Theoretical Basis ◽  
Switching Power Supply ◽  
Switching Power ◽  
Non Linear ◽  
Simulation And Experiment ◽  
Discrete Mathematical Model

For the non-linear phenomena of the switching power supply, the discrete mathematical model of current-controlled Boost DC/DC converter has been presented in this paper, according to the switch maps. The results of simulation and experiment are derived, and the variable is the current of inductor. The accuracy of the model has been verified by the results of simulation and experiment which reveales the DC / DC converters from the bifurcation and eventually to the phenomenon of chaos. The theoretical basis using or avoiding chaos is provided for the power supply design.

scholarly journals Combining DVR and UPS Techniques for an Uninterruptable Supply of Ultra-Sensitive Non-Linear Appliances

2020 ◽  
Vol 26 (3) ◽  
pp. 28-35
Author(s):  
Branislav Dobrucky ◽  
Jozef Sedo ◽  
Roman Konarik
Keyword(s):  
Power Supply ◽  
Control Method ◽  
Supply Voltage ◽  
Uninterruptible Power Supply ◽  
Comparison Results ◽  
Non Linear ◽  
Voltage Sag Detection ◽  
Uninterruptible Power ◽  
Supply Interruptions ◽  
Fast Control

The paper deals with an application of combined techniques of dynamical voltage restorer (DVR) and uninterruptible power supply (UPS) that make possible both the short voltage sags compensation, as well as longer power supply interruptions, under the simultaneous operation of equipment and network. This is enabled mainly by an instantaneous voltage sag detection, quick bidirectional over-switches, and an instantaneous control method of the output voltage. This needs a fast control method, which can provide a voltage recovery for phase-sensitive loads during several calculation steps, so the dead-beat regulator is used. Such a system even compensates for the influence of non-linear loads on the power supply network without a change of a phase and amplitude of the supply voltage. The simulation results in Matlab/Simulink, as well as real experiments and their comparison results, are given in the paper.

scholarly journals Modelling of non-linear losses in an integrated contactless power supply for magnetically levitated elevator systems using discrete circuit elements

2015 ◽  
Vol 64 (2) ◽  
pp. 177-187
Author(s):  
Aryanti Kusuma Putri ◽  
Rüdiger Appunn ◽  
Kay Hameyer
Keyword(s):  
Power Supply ◽  
Physical Contact ◽  
Guide Rail ◽  
Energy Transmission ◽  
Non Linear ◽  
Circuit Elements ◽  
Guiding System ◽  
Electromagnetically Levitated ◽  
Parallel Resistance ◽  
Additional Losses

Abstract A contactless energy transmission system is essential to supply onboard systems of electromagnetically levitated vehicles without physical contact to the guide rail. One of the possibilities to realise a contactless power supply (CPS) is by integrating the primary actuator into the guide rail of an electromagnetic guiding system (MGS). The secondary actuator is mounted on the elevator car. During the energy transmission, load dependent non-linear losses occur in the guide rail. The additional losses, which are caused by the leakage flux penetrating into the guide rail, cannot be modelled using the classical approach of iron losses in the equivalent circuit of a transformer, which is a constant parallel resistance to the mutual inductance. This paper introduces an approach for modelling the load dependent non-linear losses occurring in the guide rail using additional variable discrete circuit elements

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