基于双级饱和磁控电抗器改善电力系统负序电流的研究

Study on Two-Stage Saturable Magnetically Controlled Reactor to Improve Power System Based on Negative Sequence Current

由于电力系统中负载运行的不对称性,其运行过程中会产生快速波动的负序电流,并流入电力系统各处,对系统发电、供电设备产生严重的不良影响。提出基于双级饱和磁控电抗器,进行无功、负序综合治理,以某地牵引变电站实测出的电能质量数据为研究对象,找到其中所存在的问题,并通过仿真试验对其可行性进行了验证。

The dissymmetry of on-load running in electric power system brings negative-sequence current waved quickly. This can do great harm to the system generation and devices of power supply. In this article,Two-stage Saturable Magnetic-valve Controllable Reactor was advanced to manage idle component and negative-sequence current.Taking actual measured electric quality date of the traction transformer substation as research object,we discovered the problems in it. The measure has been approved efficiency and feasibility through simulation by computer.