Scheduling of pumped-storage hydro generator operation in balancing group with wind farms

Akihisa Kaneko, Maiko Inagaki, Yu Fujimoto, Yasuhiro Hayashi, Shunsuke Nonaka

Research output: Contribution to journalArticlepeer-review

Abstract

To utilize renewable energy systems (RES) as main generators in power system, power system operators need to maintain reserve power to compensate the uncertain output of RES, such as wind farms (WF). This paper focuses on the balancing group (BG) composed of WF and a pumped-storage hydro generator (PSHG). In the BG operation, power system operators need to schedule the operation of PSHG to minimize the imbalance risk caused by the prediction error of WF output while considering the system specific constraints of PSHG, e.g. the mechanical constraint on pump-up/down switching. This paper proposes a method to schedule the PSHG operation using the interval prediction results of the WF output for alleviating the imbalance risk the proposed scheduling scheme is formulated based on the linear programming. To verify the effectiveness of the proposed method, the amount of imbalance and the net generation of the BG were evaluated based on numerical experiments under two types of situations with different characteristics in WF output. The experimental results reveal the effectiveness of the proposed method.

Original languageEnglish
Pages (from-to)79-87
Number of pages9
JournalIEEJ Transactions on Power and Energy
Volume141
Issue number2
DOIs
Publication statusPublished - 2021 Feb 1

Keywords

  • Interval prediction
  • Linear programming
  • Pumped-storage hydro generator
  • Scheduled generation
  • Wind farm

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

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