Distributed Predictive Control for Frequency and Voltage Regulation in Microgrids

Juan S. Gomez, Doris Saez, John W. Simpson-Porco, Roberto Cardenas

Research output: Contribution to journalArticlepeer-review

48 Citations (Scopus)

Abstract

Distributed control schemes have transformed frequency and voltage regulation into a local task in distributed generators (DGs) rather than by a central secondary controller. A distributed scheme is based on information shared among neighboring units; thus, the microgrid performance is affected by issues induced by the communication network. This paper presents a distributed predictive control applied to the secondary level of microgrids. The model used for prediction purposes is based on droop and power transfer equations; however, communication features, such as connectivity and latency, are also included, thus making the controller tolerant to electrical and communication failures. The proposed controller considers the frequency and voltage regulation control objectives and consensus over the real and reactive power contributions from each power unit in the microgrid. The experimental and simulation results show that the proposed scheme (i) responds properly to load variations, working within operating constraints, such as generation capacity and voltage range; (ii) maintains the control objectives when a power unit is disconnected and reconnected without any user updating in the controllers; and (iii) compensates for the effects of communication issues over the microgrid dynamics.

Original languageEnglish
Article number8804239
Pages (from-to)1319-1329
Number of pages11
JournalIEEE Transactions on Smart Grid
Volume11
Issue number2
DOIs
Publication statusPublished - Mar 2020
Externally publishedYes

Keywords

  • constrained optimization
  • distributed predictive control
  • microgrids
  • plug-and-play controller
  • Secondary control

ASJC Scopus subject areas

  • General Computer Science

Fingerprint

Dive into the research topics of 'Distributed Predictive Control for Frequency and Voltage Regulation in Microgrids'. Together they form a unique fingerprint.

Cite this