摘要
针对上海地区110 k V电压等级变压器采用的Yy10特殊结构,阐述了基于Yy10变压器模型的变压器保护方案基本原理,推导了基于该原理的Yy10双绕组变压器的动作方程,提出了基于Yy10变压器的保护方案,对比了Yy10与Yd11不同连接组别的区别,建立了基于RTDS的变压器保护动模试验模型。仿真试验结果表明该Yy10变压器可以可靠地应用在上海电网中,并保证其安全稳定运行。
Aiming at the special Yy10 structure of the 110 kV transformer in Shanghai, the paper describes the basic principle of the transformer protection scheme based on the transformer Yy10. The operation equation model of two-winding transformer is derived from the principle and the transformer protection scheme of the Yyl0 is proposed. The differences between Yy10 and Ydll transformers are compared and the transformer protection dynamic simulation test model based on RTDS is established. The simulation results show that the Yy10 transformer can be reliably applied to the Shanghai Grid so as to ensure its safe and stability .
出处
《电网与清洁能源》
北大核心
2016年第6期108-113,共6页
Power System and Clean Energy
基金
国家科技支撑计划课题资助项目(2013BAA01B04)~~
