A study on AC system stabilization using corrective control of embedded DC systems

Minhan Yoon, Jaehyeong Lee, Sungchul Hwang, Soseul Jeong, Jongan Kim, Gilsoo Jang

Research output: Contribution to journalConference articlepeer-review


DC systems do not control power flow by themselves for system disturbances unlike AC systems. If this control is not done properly, it can become an unstable factor in the power system operation. In this paper, the method to improve the stability of AC system through proper control of embedded DC system installed in complex AC system has been studied. The method and procedure for utilizing the SCADA system to ensure that the DC system is properly controlled for N-1 contingencies are proposed. The system identifies the overloaded line through SCADA and calculate the operating point of the DC system to minimize the overload of the transmission line. This signal is sent to the master controller of the DC system to perform overload suppression. The method and procedures have been verified through the PSS/e dynamic simulation using real power system data.

Original languageEnglish
Pages (from-to)477-481
Number of pages5
Issue number4
Publication statusPublished - 2019
EventIFAC Workshop on Control of Smart Grid and Renewable Energy Systems, CSGRES 2019 - Jeju, Korea, Republic of
Duration: 2019 Jun 102019 Jun 12


  • DC system
  • corrective control
  • power system reliability
  • power system stability
  • remedial action scheme

ASJC Scopus subject areas

  • Control and Systems Engineering


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