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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Published in:2023 IEEE 7th Conference on Energy Internet and Energy System Integration (EI2) pp. 1630 - 1636
Main Authors: Zeng, Yukai, Chen, Xia, Sun, Shumin, Zhou, Guangqi, Cheng, Yan, Wang, Shibai
Format: Conference Proceeding
Language:English
Published: IEEE 15.12.2023
Subjects:
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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Abstract 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.
AbstractList 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.
Author Cheng, Yan
Wang, Shibai
Zeng, Yukai
Zhou, Guangqi
Sun, Shumin
Chen, Xia
Author_xml – sequence: 1
  givenname: Yukai
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  givenname: Xia
  surname: Chen
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  givenname: Shumin
  surname: Sun
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  email: epri@163.com
  organization: Shandong Electric Power Research Institute, State Grid Shandong Electric Power Company,Jinan,China
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  givenname: Guangqi
  surname: Zhou
  fullname: Zhou, Guangqi
  email: 709039059@qq.com
  organization: Shandong Electric Power Research Institute, State Grid Shandong Electric Power Company,Jinan,China
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  givenname: Yan
  surname: Cheng
  fullname: Cheng, Yan
  email: 13688639496@163.com
  organization: Shandong Electric Power Research Institute, State Grid Shandong Electric Power Company,Jinan,China
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  givenname: Shibai
  surname: Wang
  fullname: Wang, Shibai
  email: 15666968066@126.com
  organization: Shandong Electric Power Research Institute, State Grid Shandong Electric Power Company,Jinan,China
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Snippet Droop control is widely used to achieve desired power sharing among distributed generations (DGs). For low-voltage resistive network, P/V droop control is...
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StartPage 1630
SubjectTerms 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
Title A PI Consensus-Based Second Control for P/V Droop-Controlled Converters in Low-Voltage Resistive Network
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