Design and experimental investigation of a three-phase high power density high efficiency unity power factor PWM (VIENNA) rectifier employing a novel integrated power semiconductor module

2002 ◽  
Author(s):  
J.W. Kolar ◽  
H. Ertl ◽  
F.C. Zach
Keyword(s):  
Experimental Investigation ◽  
Power Density ◽  
Power Factor ◽  
High Power ◽  
High Efficiency ◽  
High Power Density ◽  
Unity Power Factor ◽  
Power Semiconductor ◽  
Vienna Rectifier ◽  
Three Phase

scholarly journals Modelling and analysis of vienna rectifier for more electric aircraft applications using wide band-gap materials

2021 ◽  
Vol 2120 (1) ◽  
pp. 012027
Author(s):  
Ling Jin Loong ◽  
Chockalingam Aravind Vaithilingam ◽  
Gowthamraj Rajendran ◽  
Venkatkumar Muneeswaran
Keyword(s):  
Power Density ◽  
High Power ◽  
High Efficiency ◽  
Wide Band ◽  
Wide Bandgap ◽  
High Power Density ◽  
Vienna Rectifier ◽  
Electric Aircraft ◽  
Aircraft Application ◽  
More Electric Aircraft

Abstract This paper presents a comprehensive study on the switching effects of wide bandgap devices and the importance of power electronics in an aircraft application. Silicon (Si), silicon carbide (SiC), and gallium nitride (GaN) are wide bandgap devices that act as a power electronic switch in the AC-DC converter for More Electric Aircraft (MEA) applications. Therefore, it is important to observe their converting efficiency to identify the most suitable wide bandgap device among three devices for AC-DC converters in aircraft applications to provide high efficiency and high-power density. In this study, the characteristics of Si, SIC, and GaN devices are simulated using PSIM software. Also, this paper presents the performance of the Vienna rectifier for aircraft application. The Vienna rectifier using Si, SiC, and GaN devices are simulated using PSIM software for aircraft application. GaN with Vienna rectifier provides better performance than Si and SiC devices for aircraft applications among the three devices. It gives high efficiency, high power density, low input current THD to meet IEEE-519 standard, and high-power factor at mains.

scholarly journals Power Quality Improved Single Stage High Gain DC to DC Converter

2019 ◽  
pp. 308-313
Author(s):  
B Kunjithapatham ◽  
S. Gnanapragash
Keyword(s):  
Power Density ◽  
Power Factor ◽  
High Power ◽  
Feedback Linearization ◽  
High Efficiency ◽  
Low Cost ◽  
Power Conversion ◽  
High Power Density ◽  
Magnetizing Current ◽  
Single Power

This project presents a single-switch single power-conversion (S3PC) power factor correction (PFC) converter. The control algorithm derived from feedback linearization enables the S3PC converter to obtain good controllability. The proposed converter performs both PFC control and output power control through single power-conversion. The S3PC converter provides high efficiency and high power factor in excess of 0.994.. The proposed converter is able to offer low cost and high power density in step up application due to the following features: ZCS turn-on and ZVS turn-off of switch and ZCS turn-off of diodes regardless of voltage and load variation; low rated lossless snubber; reduced transformer volume compared to fly back based converters due to low magnetizing current. The proposed converter is able to offer high power density in step-up application because of its simple structure; low rated lossless snubber; reduced transformer volume compared to isolation based converters due to low magnetizing current. The proposed converter is capable to stabilize the output efficiency. Experimental results are provided to validate the proposed concept. The Simulation is done with the help of MATLAB Software using Simulink.

scholarly journals HIGH EFFICIENCY HIGH POWER DENSITY ISOLATED MATRIX-TYPE RECTIFIER FOR TELECOM AND DATA CENTER APPLICATIONS

2021 ◽  
Author(s):  
Jahangir Afsharian
Keyword(s):  
Power Density ◽  
High Power ◽  
Data Center ◽  
High Efficiency ◽  
Power Conversion ◽  
Single Stage ◽  
High Power Density ◽  
Two Stage ◽  
Matrix Type ◽  
Three Phase

With the fast development of information technology (IT) industry, the demand and market volume for off-line power supplies keep increasing, especially those for telecommunication, computer servers and data centers. As the capital expenditure was measured by the square footage occupied rather than power consumption, the development of high power density converter system is of greater interesting. The rising energy prices have resulted in the cost of power and cooling exceeding the purchase cost in less than two years. Therefore, highly efficient power conversion is required for the power converter system. Generally, the power supply unit (PSU) for power distribution system (PDS) in data center and telecom are the standard two-stage approach which normally consists of power factor correction (PFC) circuit and isolated DC-DC converter. The two-stage power conversion has demonstrated excellent performance and high reliability, since the design can be optimized for each stage. However, limitations to prevent the existing two-stage PSU to fulfill future requirements for the PDS in data center and telecom applications are revealed, and a very promising and fundamentally different approach with the single-stage isolated converter is proposed in this dissertation. The development of single-stage converters with the option of placing the energy storage outside of the PSU creates new degrees of freedom regarding e.g. simplified rectifier racks in telecom and data center. This provides tangible benefits in the form of space saving, better airflow for power unit in rectifier racks and improved lifespan. The three-phase isolated buck matrix-type rectifier, capable of achieving high power density and high efficiency, is identified as an excellent candidate for the medium power level (5 kW~10 kW) single-stage power supply design. Nevertheless, the matrix-type rectifiers are known for their relatively complex modulation and commutation techniques, and lack of ride-through capability such as the stringent case of one phase loss operation. This dissertation work provides comprehensive study on the commutation method and modulation scheme design for the isolated buck matrix-type rectifier. It aims to analyze the operation principle of the rectifier and propose viable modulation and commutation schemes for this rectifier under both three-phase and single-phase operation. The method is verified by the hardware experiments of the PSUs with high efficiency (> 98%) and high power density (> 70 W/in3 ) for 54 V and 380 VDC applications. The prototypes demonstrated in the experiments show the effectiveness of the proposed modulation and commutation schemes for industry.

Sign in / Sign up

Export Citation Format

Share Document