Fast prototyping of control circuits for Power Electronics, based on FPGA

2006 ◽  
Author(s):  
C. Fernandez ◽  
P. Zumel ◽  
M. Sanz ◽  
A. Lazaro ◽  
C. Lopez ◽  
...  
Keyword(s):  
Power Electronics ◽  
Fast Prototyping ◽  
Control Circuits

scholarly journals Thermal Analyses of Power Electronics Integrated with Vapour Chamber Cooling

2020 ◽  
Vol 3 (4) ◽  
pp. 328-335
Author(s):  
Yiyi Chen ◽  
Yuying Yan ◽  
Bo Li
Keyword(s):  
Thermal Stress ◽  
Phase Change ◽  
Power Electronics ◽  
Electric Vehicles ◽  
Thermal Analyses ◽  
Power Module ◽  
Power Switching ◽  
Insulated Gate Bipolar Transistor ◽  
Control Circuits ◽  
Mechanical Performances

AbstractInsulated gate bipolar transistor (IGBT) power module is used for power switching transistor devices in the power supply and motor control circuits in both hybrid electric vehicles and electric vehicles. The target of heat flux of IGBT is continuously increasing due to the demand for power rating improvements and miniaturisation. Without suitable efficient cooling technologies, excessively high temperature and uneven temperature distribution can cause high thermal stress, eventually leading to severe module failures. Therefore, highly efficient cooling solutions are highly required. Vapour chamber with phase change can provide quick heat transfer and low temperature gradient. This study proposes a new IGBT structure integrated with vapour chamber. The tests and simulation results indicate that the thermal and thermo-mechanical performances of IGBT integrated with vapour chamber are better than those of the IGBT with copper baseplate module. The thermal resistance between the junction and heat sink is reduced from 0.25 to 0.14 °C/W, and the temperature uniformity is greatly improved due to the phase change in the vapour chamber. The simulation also investigates the thermal stress distribution, deformation and thermal fatigue lifespan of IGBT power electronics module. A reduction of 21.8% in thermal stress and an increase of 9% in lifespan of Sn–3.5Ag solder are achieved.

scholarly journals Single-Phase Active Power Harmonics Filter by Op-Amp Circuits and Power Electronics Devices

2018 ◽  
Vol 10 (12) ◽  
pp. 4406 ◽  
Author(s):  
Emad Samadaei ◽  
Mina Iranian ◽  
Mohammad Rezanejad ◽  
Radu Godina ◽  
Edris Pouresmaeil
Keyword(s):  
Power Electronics ◽  
Single Phase ◽  
Low Voltage ◽  
Low Cost ◽  
Reference Signal ◽  
Active Power ◽  
Op Amp ◽  
Sinusoidal Waveform ◽  
Control Circuits ◽  
Power Harmonics

This paper introduces a new structure for single-phase Active Power Harmonics Filter (APHF) with the simple and low-cost controller to eliminate harmonics and its side effects on low voltage grid. The proposed APHF includes an accurate harmonic detector circuit, amplifier circuit to trap tiny harmonics, switching driver circuit for precise synchronization, and inverter to create injection current waveform, which is extracted from reference signal. The control circuits are based on electrostatic devices consist of Op-Amp circuits. Fast dynamic, simplicity, low cost, and small size are the main features of Op-Amp circuits that are used in the proposed topology. The aim is removing the all grid harmonic orders in which the proposed APF injects an appropriate current into the grid in parallel way. The proposed control system is smart enough to compensate all range of current harmonics. A prototype is implemented in the power electronics laboratory and it is installed as parallel on a distorted grid by the non-linear load (15 APeak-Peak) to verify the compensating of harmonics. The harmonics are compensated from THD% = 24.48 to THD% = 2.86 and the non-sinusoidal waveform is renovated to sinusoidal waveform by the proposed APHF. The experimental results show a good accurate and high-quality performance.

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