A Stability Analysis of Output Voltage Control for DAB DC-DC Converter with Discrete Time Model

2019 ◽  
Vol 45 (0) ◽  
pp. 113-120
Author(s):  
Yuki Saito ◽  
Hironori Ozeki ◽  
Hiroaki Kakigano
Keyword(s):  
Stability Analysis ◽  
Discrete Time ◽  
Output Voltage ◽  
Voltage Control ◽  
Time Model ◽  
Discrete Time Model

Active stabilisation design of DC–DC converters with constant power load using a sampled discrete‐time model: stability analysis and experimental verification

2018 ◽  
Vol 11 (9) ◽  
pp. 1519-1528 ◽  
Author(s):  
Roghayeh Gavagsaz‐Ghoachani ◽  
Louis‐Marie Saublet ◽  
Matheepot Phattanasak ◽  
Jean‐Philippe Martin ◽  
Babak Nahid‐mobarakeh ◽  
...  
Keyword(s):  
Stability Analysis ◽  
Discrete Time ◽  
Experimental Verification ◽  
Constant Power ◽  
Time Model ◽  
Model Stability ◽  
Discrete Time Model ◽  
Power Load ◽  
Constant Power Load

scholarly journals State Switched Discrete-Time Model and Digital Predictive Voltage Programmed Control for Buck Converters

Energies ◽  
2020 ◽  
Vol 13 (13) ◽  
pp. 3451
Author(s):  
Wei Wang ◽  
Gaoshuai Shen ◽  
Run Min ◽  
Qiaoling Tong ◽  
Qiao Zhang ◽  
...  
Keyword(s):  
Discrete Time ◽  
Output Voltage ◽  
Reference Value ◽  
System Stability ◽  
Duty Ratio ◽  
Time Model ◽  
Reference Tracking ◽  
Discrete Time Model ◽  
Averaged Models ◽  
And Control

Switched mode power converters are nonlinear systems, and it is a constant challenge to improve their modeling accuracy and control performance. In this paper, a State Switched Discrete-time Model (SSDM) is proposed, which achieves a higher accuracy at a high frequency than that of conventional state averaged models. Instead of averaging the converter states for approximation, the states within each switching cycle are considered in the modeling. Based on total differential equations of switching-ON and switching-OFF durations, the inductor current and output voltage within a cycle are accurately calculated, which derives the SSDM. Furthermore, a Digital Predictive Voltage Programmed (DPVP) control strategy is derived through the SSDM. Through voltage prediction, a suitable duty ratio is calculated that regulates the output voltage to its reference value in the minimum switching cycles. In this way, the converter achieves a very fast load/line transient response and reference tracking speed, and it exhibits a high stability under deviated inductance. Finally, the accuracy of SSDM and the system stability are proved by frequency response analyses and experiments.

Non-homogeneous infinitely many sites discrete-time model with exact coalescent

2009 ◽  
Vol 33 (6) ◽  
pp. 713-732
Author(s):  
Adam Bobrowski ◽  
Marek Kimmel ◽  
Małgorzata Kubalińska
Keyword(s):  
Discrete Time ◽  
Time Model ◽  
Discrete Time Model
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