Adaptive Virtual Impedance Droop Control Based on Consensus Control of Reactive Current
Abstract
:1. Introduction
2. Power Sharing with Droop Control
3. Reactive Power Sharing Based on Reactive Current Control
4. Adaptive Virtual Impedance Control Strategy Based on Consensus Control
4.1. Microgrid Communication Topology
4.2. Consensus Control
4.3. Method of Realizing Virtual Impedance
5. Reference Voltage Phase Shift Compensation Using Virtual Impedance Angle
6. Simulation Results
7. Conclusions
Author Contributions
Acknowledgments
Conflicts of Interest
References
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Vdc/V | L/mH | C/μF | K | Kvp | Kvi |
---|---|---|---|---|---|
800 | 0.6 | 1500 | 5 | 10 | 100 |
LV/mH | Vdc/V | L/mH | C/μF | K | Kvp | Kvi |
---|---|---|---|---|---|---|
0.8 | 800 | 0.6 | 1500 | 5 | 10 | 100 |
Parameter | ||
---|---|---|
Rated voltage | 220 V | |
No-load frequency | 50.5 Hz | |
Line impendences | Zl1 0.8 mΩ, 4.3 mH Zl2 0.6 mΩ, 4.3 mH Zl3 0.5 mΩ, 3 mH Zl4 0.4 mΩ, 2 mH | |
Load | LD1: 1.5 kW, 1.5 kVar LD2: 3 kW, 3 kVar LD3: 4 kW, 4 kVar LD4: 4 kW, 4 kVar LOAD5: 12.5 kW, 12.5 kVar | |
Control parameters | ||
Droop coefficient | m1/1.5 = m2/3 = m3/4 = m4/4 = 1 × 10−5 n1/1.5 = n2/3 = n3/4 = n4/4 = (2/3) × 10−4 kn1/1.5 = kn2/3 = kn3/4 = kn4/4 = 2/30 | |
PI parameter | DP = 0.01 | DI = 5 |
Coupling gain CIr | 7.5 | |
Static virtual inductance | 0.5 × 10−3 H | |
Gain of adaptive virtual impedance | kR = 1.5 × 10−4, kL = 0.02 |
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Lyu, Z.; Wei, Q.; Zhang, Y.; Zhao, J.; Manla, E. Adaptive Virtual Impedance Droop Control Based on Consensus Control of Reactive Current. Energies 2018, 11, 1801. https://doi.org/10.3390/en11071801
Lyu Z, Wei Q, Zhang Y, Zhao J, Manla E. Adaptive Virtual Impedance Droop Control Based on Consensus Control of Reactive Current. Energies. 2018; 11(7):1801. https://doi.org/10.3390/en11071801
Chicago/Turabian StyleLyu, Zhilin, Qing Wei, Yiyi Zhang, Junhui Zhao, and Emad Manla. 2018. "Adaptive Virtual Impedance Droop Control Based on Consensus Control of Reactive Current" Energies 11, no. 7: 1801. https://doi.org/10.3390/en11071801