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- 摘要
- 关键词
- 实验方案
- 产品
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[IEEE 2017 19th European Conference on Power Electronics and Applications (EPE'17 ECCE Europe) - Warsaw (2017.9.11-2017.9.14)] 2017 19th European Conference on Power Electronics and Applications (EPE'17 ECCE Europe) - Improvements of switching energy of SiC transistor with respect of chip integrity and EMC standards
摘要： This paper deals with the reduction of the switching energy losses of a SiC transistor by boosting its gate current. Notoriously, wide band-gap semiconductor transistors exhibit very fast switching performances, which provoke undesirables oscillations at high frequencies. An auxiliary circuit, located at the semiconductor device terminals, is developed to limit the electrical stresses, deleterious for the transistor integrity, and to reduce the EMC conducted interferences without modifying the current and voltage slopes during the switching transition. Firstly, the SiC MosFET is characterized on SABER environment from MosFET template available on the library. The behavior of the obtained model is compared with Model Architect tool, available in the same environment. Experimental tests are carried out and confirm the behaviors predicted by simulation. The obtained results underlines the good accuracy and the merits of the simulation model developed in this work, despite the use of the power transistor in a complex configuration.
关键词： SABER Simulator,EMC,Simulation Model of SiC transistor,Laminar Bus Bar
更新于2025-09-23 15:22:29
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[IEEE 2019 IEEE 4th Advanced Information Technology, Electronic and Automation Control Conference (IAEAC) - Chengdu, China (2019.12.20-2019.12.22)] 2019 IEEE 4th Advanced Information Technology, Electronic and Automation Control Conference (IAEAC) - Research and Application of Grid-connected Control Device for Distributed Photovoltaic Power Supply
摘要： Distributed photovoltaic grid connection has impaired the power quality of the distribution network. Aiming at this salient problem, a regulation method for the voltage at the point of interconnection in the distribution network is proposed. Besides, the basic principles of voltage regulation device are introduced, and the computing method for the capacity energy storage battery configuration, matched with the power generation capacity, is given. The simulation model based on the full-control device is built in the PSCAD environment, which verified the accuracy of the control strategy and the favorable dynamic adjusting performance. Finally, by the prototype developed, the effectiveness of the new regulation method for the voltage at the point of interconnection in the distribution network is proved.
关键词： Voltage,Distributed photovoltaic,Energy storage,Simulation model
更新于2025-09-19 17:13:59
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[IEEE 2018 International Ural Conference on Green Energy (UralCon) - Chelyabinsk, Russia (2018.10.4-2018.10.6)] 2018 International Ural Conference on Green Energy (UralCon) - Simulation Model of Autonomous Solar Power Plant with Dual-Axis Solar Tracker
摘要： The article provides a description of a simulation model of a solar power station with an automated dual-axis solar tracker, which was developed using MATLAB/Simulink. The presented development includes a random weather generator (intensity of solar radiation), automated load redundancy, and also simultaneous use of two types of solar cells such as monocrystalline and polycrystalline. This paper presents the results of modeling, which prove the effectiveness of the application of solar modules with a dual-axis solar tracker in comparison with statically located modules. In addition, on the basis of the conducted analysis of the modeling solar power station work in MATLAB/Simulink optimum operating conditions of a photovoltaic plant have been identified. The developed model will allow for researching the characteristics of a solar power plant and predicting the amount of energy generated by solar panels in a specific place.
关键词： designing a solar tracking-system,modeling dual-axis solar tracker,simulation model of solar power plant,simulation of solar PV model in MATLAB
更新于2025-09-11 14:15:04
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[IEEE 2019 Second Balkan Junior Conference on Lighting (Balkan Light Junior) - Plovdiv, Bulgaria (2019.9.19-2019.9.21)] 2019 Second Balkan Junior Conference on Lighting (Balkan Light Junior) - Investigating the Influence of Environmental and Design Parameters on the Thermal Regime of a LED Lamp
摘要： The increase of the LED’s temperature above a certain threshold decreases significantly their live expectancy. Therefore, it is important to investigate LEDs’ thermal regime during exploitation. The influence of the construction and the environment parameters on the thermal regime of LED lamp was investigated in this paper. The study was done with a specially developed software, based on a model, describing the thermal regime of LED lamps. Next, a methodology for the research has been developed and a simulation study was carried out. The results of this investigation are represented graphically.
关键词： simulation,model,LED lamp,investigation
更新于2025-09-11 14:15:04
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Influence of surface charge decay on cavity PD frequency at DC voltage
摘要： In this study, two types of samples, i.e. a disc-shaped cavity embedded within solid dielectrics and the other on an electrode surface, were used to investigate partial discharge (PD) behaviours at DC voltage. It has been found that the discharge frequency of the sample with one metallic surface was much larger under a positive voltage than under a negative one, whereas it was not sensitive to voltage polarities for the sample with two insulating surfaces. In order to explain experimental results, a simulation model based on continuity equations was established to obtain PD sequences at DC voltage, in which surface charge decay and discharge time lag were taken into account. Simulation results showed that positive surface charges dissipated faster than the negative, and the discharge time lag kept almost unchanged at the same voltage amplitude. The discharge time interval consisted of field recovery time and discharge time lag, and the former was determined by surface charge decay rate. In terms of these, the effect of surface charge decay on discharge frequency was discussed. The research is helpful to clarify PD mechanism at DC voltage.
关键词： simulation model,partial discharge,discharge frequency,DC voltage,surface charge decay
更新于2025-09-11 14:15:04
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The Modeling and Analysis of a Power Transmission Line Supplied by a Solar Power Plant
摘要： This article deals with the energy transmission line system which feeds from solar energy at the MATLAB Simulink. So, direct voltage is considered to be converted as an alternating voltage by a 35-level inverter after the solar power plant which has the power of 110 MW produce 360 kV of direct voltage. A line which covers 240 km of distance is preferred to transmit electrical power from the A1 point to an A2 point. Due to this, the required mathematical equations are calculated with a circuit analyzing method for the line modeling in the simulation. Experiments on the model are carried out at the MATLAB Simulink after the creation of an energy transmission line. After that, when measurements are made taking into consideration the A2 node; the capacitor voltage, the transformer current, the A2 node current, and the fault current, values are given according to the converted voltage at the frequencies of 100 Hz, 80 Hz, and 50 Hz. The obtained results demonstrate the success of the proposed line system, while power is distributed with eliminated fault at a long distance at different frequencies.
关键词： mathematical model of the line,simulation model of the transmission line,35-level inverter
更新于2025-09-10 09:29:36