摘要
对于远距离高压直流输电,两端变流器之间的相互影响可以忽略,但在背靠背联网工程中,由于没有直流线路,整流站和逆变站通常在同一个换流站内,整流侧和逆变侧之间的相互影响不能被忽视。该文以灵宝换流站为例,在现场实测数据验证建立的电磁暂态模型正确合理的基础上,将机电暂态仿真和电磁暂态仿真两种算法相结合,采用机电-电磁混合仿真方法研究了灵宝换流站送受端电网之间、直流系统与交流系统之间的相互影响,解决了单一算法难以实现对大规模交直流系统进行仿真的问题。研究所得结论,对换流站制定相应的防范对策,提高换流站的运行管理水平具有重要意义。
For tong distance high voltage DC transmission, the interaction of converter between the transmission line ends can be neglected. However due to the back-to-back interconnection project without DC line, rectifier and inverter station are often located in the same converter station, the mutual influence between the rectifier and the inverter side cannot be ignored. This paper highlights the case of Lingbao converter station, initially verifies that the electromagnetic transient model is correct via measured data, then utilizesin a hybrid method of electromechanical and electromagnetic hybrid simulation to study the interaction between sending and receiving grid of Lingbao converter station as well as the interaction between AC system and DC system., and has solved the problem that single algorithm is difficult to imple- ment large scale AC/DC system simulation. The result of the research is helpful for converter station to make corre- sponding prevention countermeasures and to enhance the operation and management level.
出处
《电力系统及其自动化学报》
CSCD
北大核心
2015年第2期92-97,共6页
Proceedings of the CSU-EPSA
关键词
背靠背联网工程
交直流系统
短路故障
混合仿真
back to back interconnection
AC and DC system
short circuit fault
hybrid simulation
