论文部分内容阅读
为了2013年南方电网北郊、木棉、水乡STATCOM一期工程投产需要,进行了STATCOM对系统影响的专题研究。基于RTDS实时仿真软件建立了南方电网STATCOM试验研究系统模型,采用大扰动下暂态稳定时域仿真分析了多套STATCOM对故障时暂态期间电压恢复以及(特)高压直流功率恢复的影响。研究表明,多套STATCOM的投入对直流系统逆变站换流母线电压、严重故障下直流长期换相失败的持续时间以及直流功率恢复有明显改善,且母线接地短路开关拒动等严重故障下的改善效果更加明显,而对故障瞬间发生的换相失败改善效果不明显。
In order to put into operation the first phase of STATCOM project of the northern suburbs, Kapok and Shuixiang in Southern China Power Grid in 2013, a special study on the impact of STATCOM on the system was carried out. Based on RTDS real-time simulation software, the STATCOM experimental research system model of China Southern Power Grid was established. The transient stability time domain simulation under large disturbance was used to analyze the influence of multiple STATCOMs on voltage recovery and (special) high-voltage DC power recovery during transient fault. The research shows that the input of several sets of STATCOM has a significant improvement on the DC link bus voltage of converter station, the duration of DC long-term commutation failure under severe fault and the recovery of DC power, and the serious fault of busbar grounding short-circuit switch The improvement effect is more obvious, while the effect of commutation failure instantaneously is not obvious.