The Operation Strategy of the MIDC Systems for Optimizing Renewable Energy Integration of Jeju Power System

Hyeokjin Son, Gilsoo Jang

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

The power system on Jeju Island currently faces challenges due to an imbalance between power supply and demand owing to increasing renewable energy (RE) generation. Consequently, the multi-infeed high-voltage direct-current (MIDC) systems are expected to play an important role in reducing RE curtailment and increasing RE penetration. However, despite the balance between power supply and demand, transmission line (TL) overloads on Jeju Island, which has a low permissible rating, may lead to RE curtailment. We propose an operational strategy for the MIDC systems to mitigate TL overloading and RE curtailment. This strategy was aimed at managing the possible congestion of TLs, maintaining a power supply–demand balance, and increasing the penetration level of RE. In this paper, we present a scheme for calculating the operating points of the MIDC systems and allocating RE curtailment using optimization with security constraints to mitigate TL overloading. The proposed optimization model simplifies solving the mathematical equations involved by employing a sensitivity factor called the power transfer distribution factor (PTDF), using which linear programming (LP) optimization can be performed. To verify the feasibility of the operational strategy, case studies are conducted using an actual Jeju Island power system with a power system analysis tool—Power System Simulator for Engineering (PSS/E). The optimization problem was solved using MATLAB.

Original languageEnglish
Article number5699
JournalEnergies
Volume16
Issue number15
DOIs
Publication statusPublished - 2023 Aug

Bibliographical note

Funding Information:
This work was supported by Korea Institute of Energy Technology Evaluation and Planning (KETEP) grants funded by the South Korean government (MOTIE) (20191210301890 and 20210501010010).

Publisher Copyright:
© 2023 by the authors.

Keywords

  • linear programming (LP) optimization
  • multi-infeed high-voltage direct current (MIDC)
  • power transfer distribution factor (PTDF)
  • renewable energy curtailment

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Fuel Technology
  • Engineering (miscellaneous)
  • Energy Engineering and Power Technology
  • Energy (miscellaneous)
  • Control and Optimization
  • Electrical and Electronic Engineering

Fingerprint

Dive into the research topics of 'The Operation Strategy of the MIDC Systems for Optimizing Renewable Energy Integration of Jeju Power System'. Together they form a unique fingerprint.

Cite this