Research on a Hybrid Control Method for Three-Phase High-Power Energy Storage Converter

2019 ◽  
Author(s):  
Liwei Meng ◽  
Chang Liu ◽  
Zhi Zhang ◽  
Xiao Tang
Keyword(s):  
Energy Storage ◽  
High Power ◽  
Control Method ◽  
Hybrid Control ◽  
Three Phase

Three-phase voltage outages compensator with cascaded multilevel converter

2012 ◽  
Vol 61 (3) ◽  
pp. 325-336 ◽  
Author(s):  
Jan Iwaszkiewicz ◽  
Piotr Bogusławski ◽  
Antoni Krahel ◽  
Eugeniusz Łowiec
Keyword(s):  
Energy Storage ◽  
High Voltage ◽  
Control Method ◽  
Digital Controller ◽  
Phase Voltage ◽  
Multilevel Converter ◽  
Three Phase ◽  
Laboratory Prototype

Three-phase voltage outages compensator with cascaded multilevel converterThe paper presents a laboratory prototype of the three-phase transformerless voltage outages compensator with an energy storage based on high voltage supercapacitors. The system described is able to protect an isolated grid e.g. in industry against short voltage interruptions, dips and sags. An idea of a control method as well as a digital controller has been presented, too.

scholarly journals Current Sharing Control of an Interleaved Three-Phase Series-Resonant Converter with Phase Shift Modulation

Energies ◽  
2021 ◽  
Vol 14 (9) ◽  
pp. 2470
Author(s):  
Jing-Yuan Lin ◽  
Kuan-Hung Chen ◽  
Pin-Hsian Liu ◽  
Hsuan-Yu Yueh ◽  
Yi-Feng Lin
Keyword(s):  
Phase Shift ◽  
High Power ◽  
Output Voltage ◽  
Control Method ◽  
Total Output ◽  
Analysis And Design ◽  
Current Sharing ◽  
Three Phase ◽  
Series Resonant ◽  
Power Switches

Recently, three-phase series-resonant converters (SRCs) have been proposed for high power applications. Three-phase SRCs can achieve zero-voltage-switching (ZVS) of the primary power switches and regulate the output voltage by pulse-frequency modulation. The interleaving technique is also a conventional method for DC-DC converters to achieve a high power level, reducing the output voltage ripples due to operating out of phase at the same frequency between the two converters. However, an interleaved three-phase SRC cannot easily synchronize switching instants between the two modules due to the component tolerances of circuits. In the proposed control method, phase shift modulation (PSM) is used to solve the output current imbalance caused by component tolerances. The power switches of the converter can also maintain synchronizing switching instants between the two modules. Therefore, the lower output voltage ripple can be achieved. A detailed analysis and design of this new control method for interleaved three-phase SRCs are described. Finally, prototype converters with a 2.4 kW total output were built and successfully tested to verify the feasibility of the current sharing modulation.

Three-Phase Three-Level Soft Switching Dc-Dc Converter for Industrial Applications

2017 ◽  
Vol 8 (2) ◽  
pp. 785
Author(s):  
J. Sivavara Prasad ◽  
Y.P. Obulesh ◽  
Ch. Sai Babu
Keyword(s):  
High Power ◽  
Control Method ◽  
Industrial Applications ◽  
Soft Switching ◽  
Load Range ◽  
Switching Losses ◽  
Shift Control ◽  
Three Phase ◽  
Control Switch ◽  
Operational Modes

In high power DC applications, the single-phase DC-DC converter will face large voltage and current stress in each control switch and thereby the power handling capacity is less. To overcome this problem, three-phase DC-DC converter is used and it is suitable for high power applications with reduced number of switches as compared with the conventional topologies. The asymmetrical duty cycle control is considered to operate the switches under soft switching and hence the switching losses are reduced. The transformer leakage inductances are used along with junction capacitances in order to form resonance and hence ZVS commutation is possible in a wider load range. The modified phase shift control method is used for the proposed converter.The operational modes and design equations of the proposed converter have been observed. The simulation is carried out with a load of 1000W for validating the proposed work.

Research on Three-Phase VIENNA Converter for PFC

2013 ◽  
Vol 385-386 ◽  
pp. 1193-1196
Author(s):  
Gui Xing Wang ◽  
Chun Lei Xu ◽  
Hong Zhang ◽  
Hao Yan ◽  
Chun Yue Yang
Keyword(s):  
Power Factor ◽  
High Power ◽  
Control Method ◽  
Circuit Simulation ◽  
Input Power ◽  
Vienna Rectifier ◽  
Three Phase ◽  
Pressure Resistance ◽  
Set Up ◽  
Hysteresis Control

In order to get the stable output, the small switch pressure resistance and the high power factor with the high power three-phase rectifier, the three-phase VIENNA PFC circuit topology was studied, and the principle of VIENNA rectifier was investigated, based on the original concept of the control method, the interval control with hysteresis control method were used to control the whole rectifier circuit. Throughout the system design had been completed, the MATLAB model is built for the design of the circuit simulation, the simulation results show that the system output is stabilizing output, and the pressure resistance of the switch device is half of the output voltage, and the input power factor is 1.And set up some small prototype to verify the control method of the rectifier.

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