Power Loss Analysis of Matrix Converter Based on RB-IGBT

2012 ◽  
Vol 433-440 ◽  
pp. 5512-5520
Author(s):  
Yi Wei Yang ◽  
Bo Zhou ◽  
Jia Dan Wei ◽  
Ming Ming Shi
Keyword(s):  
Experimental Data ◽  
Control Strategy ◽  
Power Loss ◽  
Matrix Converter ◽  
Switching Process ◽  
Voltage Control Strategy ◽  
Input Line ◽  
Line Voltage ◽  
Loss Analysis ◽  
State Curve

The power loss analysis of matrix converter based on RB-IGBT is discussed in this paper. The on-state performance and switching process of RB-IGBT are tested; the on-state curve is obtained by the mathematical fit of the experimental data; On the basis, a method of power loss calculation for matrix converter under the input line-to-line voltage control strategy and four-step commutation strategy is investigated; Finally, the simulation result obtained by MATLAB/Simulink verifies the correctness and validity of the proposed method.

scholarly journals Power Loss Analysis and a Control Strategy of an Active Cell Balancing System Based on a Bidirectional Flyback Converter

2020 ◽  
Vol 10 (12) ◽  
pp. 4380
Author(s):  
Yu-Lin Lee ◽  
Chang-Hua Lin ◽  
Shih-Jen Yang
Keyword(s):  
Metal Oxide ◽  
Control Strategy ◽  
Power Loss ◽  
Metal Oxide Semiconductor ◽  
Active Cell ◽  
Oxide Semiconductor ◽  
Flyback Converter ◽  
Loss Analysis ◽  
Loss Models ◽  
Cell Balancing

This research proposes a power loss analysis and a control strategy of an active cell balancing system based on a bidirectional flyback converter. The system aims to achieve an energy storage application with cells connected in 6 series and 1 parrarel (6S1P) design. To reduce the structural complexity, Metal-Oxide-Semiconductor Field Effect Transistor (MOSFET) array commonly used in balancing system is replaced with the photovoltaic Metal-Oxide-Semiconductor (photoMOS) array. Power loss analysis is utilized for the system operating in the proper current to reach higher efficiency. The proposed loss models are divided into conduction loss, switching loss, and copper and core loss of the transformer. Besides, the models are used to estimate the loss of converter operating in different balance conditions to evaluate the system efficiency and verified by the implemented balancing circuit. By way of the loss models, the balancing current can be determined to reach higher efficiency of the proposed system. For further improvement of the balancing process, the system has also applied a control strategy to enhance the balancing performance that reduces 50% maximum voltage difference than traditional cell-to-pack architecture, and 47% balancing duration than traditional pack-to-cell architecture.

scholarly journals A single stage ZVS Power factor correction converter

2018 ◽  
Vol 7 (2.24) ◽  
pp. 208
Author(s):  
G Ravivarman ◽  
S Poorani
Keyword(s):  
Power Factor ◽  
Power Loss ◽  
Power Factor Correction ◽  
Control Strategies ◽  
Research Effort ◽  
Switching Scheme ◽  
Peak Efficiency ◽  
Input Line ◽  
Line Voltage ◽  
Voltage Stress

The aspects with respect to control strategies power factor correction (PFC) converter are examined. Research effort in focus to minimized switching stress for improving better efficiency in power rating is 500W/48V, is achieved by using soft switching. In this suggested converter and switching scheme ZVS voltage stress is shaped. Added to this power loss is minimized. A 500W/48V prototype is proposed to serve the concept proof, which exhibits 92.69% peak efficiency at low input line voltage.  

scholarly journals Control Strategy of Mode Transition with Engine Start in a Plug-in Hybrid Electric Bus

Energies ◽  
2019 ◽  
Vol 12 (15) ◽  
pp. 2989 ◽  
Author(s):  
Yang ◽  
Zhang ◽  
Zhang ◽  
Tian ◽  
Hu
Keyword(s):  
Control Strategy ◽  
Transition Process ◽  
Structural Features ◽  
Driving Performance ◽  
The State ◽  
Switching Process ◽  
Mode Switching ◽  
Mode Transition ◽  
Power Sources ◽  
Hybrid Electric

Torque coordinated control of the relevant power sources has an important impact on the vehicle dynamics and driving performance during the mode transition of the hybrid electric vehicles(HEVs). Considering the dynamic impact problem caused by mode transition, this paper, based upon the structural features of axially paralleled hybrid power system, introduces the bumpless mode switching control theory to analyze multi-mode transition. Firstly, the state transition process is abstracted as the state space transition problem of hybrid system. Secondly the mode transition is divided into four sub-states, and the state model of each sub-state is established. Thirdly, taking the cost functions as the optimization objective, the state switching process is solved, and the control vectors of each switching process are obtained. Simulation and experimental results show that the proposed control strategy can effectively suppress torque fluctuation, avoid longitudinal acceleration impact, and improve driving performance.

The reactive power voltage control strategy of PV systems in low-voltage string lines

2017 ◽  
Author(s):  
Feng Zhang ◽  
Xiaolong Guo ◽  
Xiqiang Chang ◽  
Guowei Fan ◽  
Lianger Chen ◽  
...  
Keyword(s):  
Control Strategy ◽  
Reactive Power ◽  
Low Voltage ◽  
Voltage Control ◽  
Voltage Control Strategy ◽  
Pv Systems
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