[Poster Presentation]Research on Quantitative Risk Assessment and Prevention and Control Measure of Subsynchronous Oscillation

Research on Quantitative Risk Assessment and Prevention and Control Measure of Subsynchronous Oscillation

ID：43 Submission ID：103 View Protection：ATTENDEE Updated Time：2022-08-11 13:26:38 Hits：191 Poster Presentation

Start Time：Pending （Asia/Shanghai）

Duration：Pending

Session：[No Session] » [No Session Block]

No files

Abstract

With the wide access of wind power and other renewable energy, subsynchronous oscillation accidents have occurred many times in power grid. Subsynchronous oscillation has a negative impact on the secure and stable operation of the system. It has become one of the important factors restricting the consumption of renewable energy. In order to suppress the occurrence of subsynchronous oscillation, the mathematical model of direct-drive permanent magnet synchronous generator (PMSG) is established and its impedance formula is derived in this paper. Based on the principle of impedance analysis, a quantitative risk assessment index for subsynchronous oscillation is proposed. On this basis, according to the sensitivity of control system’s parameters to the quantitative risk assessment index, a preventive control measure to suppress the occurrence of subsynchronous oscillation is proposed. The effectiveness of the proposed control measure is verified by time domain simulation.

Keywords

subsynchronous oscillation,direct-drive PMSG,assessment index,sensitivity

Speaker

Song He

Nanjing Normal University

Submission Author

Song He Nanjing Normal University

Feng Luo NARI Group Corporation (State Grid Electric Power Research Institute)

Yingjie Chen NARI Group Corporation (State Grid Electric Power Research Institute)

Naishuang Li NARI Group Corporation (State Grid Electric Power Research Institute)

Weilun Ni NARI Group Corporation (State Grid Electric Power Research Institute)