Multi-Functional Model Predictive Control with Mutual Influence Elimination for Three-Phase AC/DC Converters in Energy Conversion
Abstract
:1. Introduction
2. Modeling of Three-phase Full-bridge Converter
3. Predictive Model of AC/DC Converter
4. Proposed Multi-Functional MPC for Steady and Dynamic Performance Optimization
4.1. Steady-state Performance Improvement
4.1.1. One-Step-Delay Compensation
4.1.2. Frequency Reduction and Stability Improvement
4.2. Dynamic Performance Improvement with Mutual Influence Elimination Constraint
5. Simulation Results
5.1. Steady-State Performance Comparison
5.2. Dynamic Performance Comparison
6. Experimental Results
6.1. Comparison of Steady and Dynamic Performance under the Step Change of Reactive Power
6.2. Dynamic-State Performance with P Step Change
7. Conclusions
Author Contributions
Funding
Conflicts of Interest
References
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Description | Name | Value |
---|---|---|
Resistance of reactor | R | 510 mΩ |
Inductance of reactor | L | 4.2 mH |
DC-bus capacitor | C | 3500 μF |
Load resistance | RL | 50 Ω |
Source voltage | e | 110 V(peak) |
Source voltage frequency | f | 50 Hz |
DC-bus voltage | Vdc | 300 V |
Weighting factor | λm | 0.02 |
Weighting factor | λf | 100 |
Weighting factor | λs | 55 |
Control | THD (%) | Prip (W) | Qrip (Var) | fsw (Hz) | Psht (W) | Qsht (Var) | Time (ms) |
---|---|---|---|---|---|---|---|
CDPC [8] | 7.95↑ | 209.6↑ | 323.1↑ | 1472↓ | 600↓ | 580↓ | 3.6↑ |
CMPC-I [35] | 5.92 * | 143.2 * | 244.3 * | 1908 * | 2020 * | 1855 * | 2.5 * |
CMPC-II [35] | 2.69↓ | 77.7↓ | 81.3↓ | 3201↑ | 1561↓ | 1812↓ | 2.7↑ |
MMPC-I | 5.33→ | 152.3→ | 224.3→ | 1952→ | 541↓ | 185↓ | 3.3↑ |
MMPC-II | 2.76↓ | 81.8↓ | 83.1↓ | 3291↑ | 310↓ | 170↓ | 3.2↑ |
Description | Name | Value |
---|---|---|
Resistance of reactor | R | 500 mΩ |
Inductance of reactor | L | 22 mH |
DC-bus capacitor | C | 680 μF |
Load resistance | RL | 34 Ω |
Source voltage | e | 110 V(peak) |
Sampling Period | Ts | 50 μs |
Source voltage frequency | f | 50 Hz |
Control | THD (%) | Prip (W) | Qrip (Var) | fsw (Hz) | Psht (W) | Qsht (Var) | Time (ms) |
---|---|---|---|---|---|---|---|
CDPC [8] | 8.52↑ | 38.56↑ | 38.7↑ | 1720↓ | 68↓ | 133↓ | 4.1↑ |
CMPC-I [35] | 6.94 * | 30.59 * | 31.57 * | 2520 * | 231 * | 163 * | 2.7* |
CMPC-II [35] | 5.88↓ | 28.67↓ | 22.87↓ | 3410↑ | 201↓ | 141↓ | 3.2↑ |
MMPC-I | 6.90→ | 32.82→ | 27.43→ | 2650→ | 71↓ | 45↓ | 3.9↑ |
MMPC-II | 5.22↓ | 22.12↓ | 22.49↓ | 3760↑ | 49↓ | 49↓ | 3.8↑ |
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Shi, X.; Zhu, J.; Lu, D.; Li, L. Multi-Functional Model Predictive Control with Mutual Influence Elimination for Three-Phase AC/DC Converters in Energy Conversion. Energies 2019, 12, 1616. https://doi.org/10.3390/en12091616
Shi X, Zhu J, Lu D, Li L. Multi-Functional Model Predictive Control with Mutual Influence Elimination for Three-Phase AC/DC Converters in Energy Conversion. Energies. 2019; 12(9):1616. https://doi.org/10.3390/en12091616
Chicago/Turabian StyleShi, Xiaolong, Jianguo Zhu, Dylan Lu, and Li Li. 2019. "Multi-Functional Model Predictive Control with Mutual Influence Elimination for Three-Phase AC/DC Converters in Energy Conversion" Energies 12, no. 9: 1616. https://doi.org/10.3390/en12091616