摘要详情

ID / 提交时间

159 / 2023-10-19 20:34:13

标题

Research on Real-Time Power Matching Problem in Stepping up from Zero Based on Self-Synchronous Voltage Source

关键字

black start,self-synchronous voltage source,stepping up from zero voltage,renewable energy

主题及专题

2.Power electronic technology and application > (2)、Modeling, simulation and control in power electronics

状态

终稿

作者

Xingang Yang / State Grid Shanghai Municipal Electric Power Company

Yuqi Wen / Shanghai JiaoTong University

Jun Gu / State Grid Shanghai Municipal Electric Power Company

Liang Cao / State Grid Shanghai Municipal Electric Power Company

摘要

Nowadays, with the continuous increase in the proportion of renewable energy sources in the power grid, black start, as a critical technology for system restoration, is receiving increasingly more attention. Black start procedures play a crucial role in mitigating the risk of major blackouts in modern power systems relying on new energy sources. Utilizing inverters with self-synchronous voltage source control can significantly enhance the speed of system recovery. During the black start process, units with self-starting ability are susceptible to experiencing a significant inrush current within the self-starting process after the power failure. In this paper, a voltage control mode with zero lifting voltage is employed to mitigate the inrush current. Also, a strategy to change the reference value of active power of inverters is also proposed to solve the mismatch problems of the real-time power during the zero-lift boost of the voltage. All theoretical analyses and the effectiveness of the control mode and control strategy are verified by time simulations.