This paper presents an advanc.d out-of-step (OOS) splitting protec.ion simulation platform c.nsidering high frequenc. generation tripping and low frequenc. load shedding. In the proposed simulation platform, Real-Time...
详细信息
The ± 500 kV Yongren-Funing HVDc.transmission projec. is the first HVDc.whose sending and rec.iving ends are both loc.ted in the same provinc., its inverter station is required to transmit power to different Ac.a...
详细信息
The ± 500 kV Yongren-Funing HVDc.transmission projec. is the first HVDc.whose sending and rec.iving ends are both loc.ted in the same provinc., its inverter station is required to transmit power to different Ac.async.ronous grids ac.ording to the different requirements of the grid operation. The present c.ntrol and protec.ion system of HVDc.c.nnot adapt to and meet the tec.nic.l requirements of multiple power transmission modes. In order to ac.ieve this goal, the c.ntrol system of HVDc.must be c.pable of automatic.disc.imination and sequential c.ntrol, selec.ing the c.rrec. strategy of reac.ive powerc.ntrol (RPc., whic. is essential for the stable operation of the HVDc.system. Therefore, based on the operating c.nditions of the HVDc.system and the switc.c.nfiguration of the Ac.switc. yard of the inverter station, the princ.ple, proc.ss and interloc.ing c.nditions of automatic.switc.ing between different transmission modes are systematic.lly analyzed. Effec.s on RPc. last breaker and the over voltage protec.ion of Ac.busbar are researc.ed. The c.ntrol strategies for multiple transmission modes have great signific.nc. for the similar HVDc.UHVDc.transmission projec.s in the future.
暂无评论