A PI + Sliding-Mode Controller Based on the Discontinuous Conduction Mode for an Unidirectional Buck–Boost Converter with Electric Vehicle Applications
Abstract
:1. Introduction
2. Buck–Boost Converter Modeling and Physical Considerations in DCM
Auxiliary Signal Determination
3. Controller Design for Output Voltage Regulation
3.1. Sliding-Mode Current Controller
3.1.1. Sliding Surface Selection
3.1.2. Equivalent Control
3.1.3. Lyapunov Stability Analysis
3.1.4. Hysteresis Function
3.2. Proportional–Integral Voltage Controller
4. Numerical Results and Discussion
4.1. Simulation Scenario I: Converter Open-Loop Behavior
4.2. Simulation Scenario II: Input Voltage Variations
4.3. Simulation Scenario III: Resistance Load Variations
4.4. Simulation Scenario IV: Output Voltage Reference Variations
5. Conclusions and Future Work
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Conflicts of Interest
References
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Device | Model | No. | Imin (A) | Imax (A) |
---|---|---|---|---|
DC Motor | Xi5 Saltwater | 2 | 2 | 12.6 |
GPS | Trimble BX992 | 1 | 0.5 | 4 |
CPU | LIVA | 1 | 1 | 3 |
Weather Station | Airmar 220WX | 1 | 0.05 | 0.09 |
Acoustic Beacons | Sea Trac X150 | 1 | 0.05 | 0.8 |
Total: | 3.6 | 20 |
Controller Gains | ||
---|---|---|
(ms) | ||
7.56 | 1.45 | 192 |
Description | Parameter | Value |
---|---|---|
Min input voltage | 19 V | |
Max input voltage | 27 V | |
Capacitance | C | 1.10 mF |
Inductance | L | 20 H |
Inductor resistance | ESR | 1.21 m |
Switching frequency | f | 20 kHz |
Min load resistance | R | 1.2 |
Max load resistance | R | 6.67 |
Desired output voltage | 24 V |
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González, I.; Sánchez-Squella, A.; Langarica-Cordoba, D.; Yanine-Misleh, F.; Ramirez, V. A PI + Sliding-Mode Controller Based on the Discontinuous Conduction Mode for an Unidirectional Buck–Boost Converter with Electric Vehicle Applications. Energies 2021, 14, 6785. https://doi.org/10.3390/en14206785
González I, Sánchez-Squella A, Langarica-Cordoba D, Yanine-Misleh F, Ramirez V. A PI + Sliding-Mode Controller Based on the Discontinuous Conduction Mode for an Unidirectional Buck–Boost Converter with Electric Vehicle Applications. Energies. 2021; 14(20):6785. https://doi.org/10.3390/en14206785
Chicago/Turabian StyleGonzález, Ileana, Antonio Sánchez-Squella, Diego Langarica-Cordoba, Fernando Yanine-Misleh, and Victor Ramirez. 2021. "A PI + Sliding-Mode Controller Based on the Discontinuous Conduction Mode for an Unidirectional Buck–Boost Converter with Electric Vehicle Applications" Energies 14, no. 20: 6785. https://doi.org/10.3390/en14206785