A Wide Range High Voltage Gain Bidirectional DC-DC Converter for V2G and G2V Hybrid EV Charger

2021 ◽  
pp. 1-1
Author(s):  
Hamed Heydari-doostabad ◽  
Terence Martin O'Donnell
Keyword(s):  
High Voltage ◽  
Voltage Gain ◽  
High Voltage Gain ◽  
Wide Range

Improved Y-Source Single-Stage Transformerless Micro-Inverter for PV Residential Applications

2020 ◽  
Vol 38 (9A) ◽  
pp. 1327-1341
Author(s):  
Firas S. Salih ◽  
Oday A. Ahmed
Keyword(s):  
High Voltage ◽  
Power Plants ◽  
Single Stage ◽  
Small Scale ◽  
Voltage Gain ◽  
Leakage Inductance ◽  
High Voltage Gain ◽  
Source Impedance ◽  
Wide Range ◽  
Micro Inverter

Y-Source Impedance Network (YSN) is one of the most suitable for providing high voltage gain. It generatesa high voltage gain by using a small shoot-through duty cycle, which makes it suitable in applications require a wide range of input voltages such as the Photovoltaic (PV) power plants. However, traditional (YSNs) are unable to boost low voltages in certain applications to the DC-link voltage (about 400V) since it requires a high number of the turns ratio. Higher turns ratio implies higher leakage inductance resulting in higher DC-link voltage spikes. Also, traditional YSNs have high voltage stresses across the components. In this paper, a developed new transformerless Micro-Inverter (MI) is presented that can overcome all the aforementioned drawbacks. The proposed MI has been developed and designed to eliminate both the leakage inductance due to three-winding coupled transformer and leakage current due to using transformerless MI configuration. In addition, the proposed MI reduced the components' stress significantly and increases the converter voltage gain capability in one single-stage. The proposed high boost ratio transformerless MI is analyzed through the PLECS software simulator and implemented in a small scale MI prototype to ensure the results agree with the analysis and simulation results.

scholarly journals All-Bootstrap Gate-Driver Supply System for a High-Voltage-Gain Resonant DC-DC Converter with Seven Switches

2020 ◽  
Vol 5 (1) ◽  
pp. 135-142
Author(s):  
Robert Stala ◽  
Andrzej Mondzik ◽  
Adam Penczek ◽  
Zbigniew Waradzyn ◽  
Aleksander Skała
Keyword(s):  
Control System ◽  
High Voltage ◽  
Electronic System ◽  
Input Voltage ◽  
Supply System ◽  
Voltage Source ◽  
Voltage Gain ◽  
High Voltage Gain ◽  
Wide Range ◽  
Gate Driver

AbstractThis paper presents the concept and implementation of an electronic system for a switched-capacitor DC-DC converter with high voltage gain. The converter consists of seven switches, five of which being controlled like high-side type. This paper presents a non-typical bootstrap-based gate-driver system so that the converter can run using a single voltage source. The converter requires a special switching pattern to drive seven switches in a steady state and also during the start-up of the converter and the regulation of the output voltage. Therefore, an FPGA-based digital control system is used with various switching algorithms and protection functions implemented. The presented converter is an autonomic device that taps the energy from the main input. Therefore, the electronic system of the converter is equipped with a self-supply system with a wide range of the input voltage. The parameters of the converter such as voltage gain, voltages and power ranges can be scalable for prospective applications with the proposed control system.

scholarly journals High voltage gain and conversion using bidirectional converter in microgrid and electric vehicle systems

2021 ◽  
Vol 1964 (5) ◽  
pp. 052016
Author(s):  
L. Annie Isabella ◽  
Y. Alexander Jeevanantham ◽  
Chandla Ellis ◽  
R. Kameshwaran
Keyword(s):  
Electric Vehicle ◽  
High Voltage ◽  
Voltage Gain ◽  
High Voltage Gain ◽  
Bidirectional Converter ◽  
Vehicle Systems

Experimental validation of nine‐level switched‐capacitor inverter topology with high voltage gain

2021 ◽  
Author(s):  
Jagabar Sathik Mohamed Ali ◽  
Marif Daula Siddique ◽  
Saad Mekhilef ◽  
Yongheng Yang ◽  
Yam Siwakoti ◽  
...  
Keyword(s):  
High Voltage ◽  
Experimental Validation ◽  
Switched Capacitor ◽  
Voltage Gain ◽  
High Voltage Gain ◽  
Inverter Topology
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