articleIEEE Transactions on Industrial ElectronicsDec 10, 2014Closed access

Distributed Secondary Voltage and Frequency Restoration Control of Droop-Controlled Inverter-Based Microgrids

FGFanghong GuoCWChangyun WenJMJianfeng MaoYSYongduan Song

Nanyang Technological University · Chongqing University

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Abstract

In this paper, restorations for both voltage and frequency in the droop-controlled inverter-based islanded microgrid (MG) are addressed. A distributed finite-time control approach is used in the voltage restoration which enables the voltages at all the distributed generations (DGs) to converge to the reference value in finite time, and thus, the voltage and frequency control design can be separated. Then, a consensus-based distributed frequency control is proposed for frequency restoration, subject to certain control input constraints. Our control strategies are implemented on the local DGs, and thus, no central controller is required in contrast to existing control schemes proposed so far. By allowing these…

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Topics & keywords

Topics
Keywords
  • Voltage droop
  • Control theory (sociology)
  • Microgrid
  • Automatic frequency control
  • Controller (irrigation)
  • Inverter
  • MATLAB
  • Voltage
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