A PI Consensus-Based Second Control for P/V Droop-Controlled Converters in Low-Voltage Resistive Network

Droop control is widely used to achieve desired power sharing among distributed generations (DGs). For low-voltage resistive network, P/V droop control is preferred rather than the conventional droop. However, P/V droop also suffers from inaccurate active power allocation and deviation of voltage an...

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Veröffentlicht in:2023 IEEE 7th Conference on Energy Internet and Energy System Integration (EI2) S. 1630 - 1636
Hauptverfasser: Zeng, Yukai, Chen, Xia, Sun, Shumin, Zhou, Guangqi, Cheng, Yan, Wang, Shibai
Format: Tagungsbericht
Sprache:Englisch
Veröffentlicht: IEEE 15.12.2023
Schlagworte:
distributed generation
Impedance
Low voltage
low-voltage resistive network
PI consensus algorithm
PIV droop control
Power system stability
Resource management
Robustness
Stability analysis
System integration
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Zusammenfassung:Droop control is widely used to achieve desired power sharing among distributed generations (DGs). For low-voltage resistive network, P/V droop control is preferred rather than the conventional droop. However, P/V droop also suffers from inaccurate active power allocation and deviation of voltage and frequency from rated values induced by inequal line impedance and its inherent defects. A PI-consensus based secondary controller is hereby proposed for the P/V droop control to address these problems. With the effect of PI-consensus algorithm, the deviations of voltage and frequency are minimized, and the active power of DGs reach a consensus, achieving desired power allocation. Simulations are conducted to verify the effectiveness and the robustness of the proposed second control in an islanded low-voltage resistive power system. Besides, an experiment is carried out to further validate its efficacy.
DOI:10.1109/EI259745.2023.10512862