直流站换流变压器带负荷测试方法  

Testing Method with Loads of Direct Current Commutation Transformer

作　　者：张剑[1] 肖宇华[2] 袁宇波[1] 黄浩声[1] 张佳敏[1] 李鹏[1] 

机构地区：[1]江苏省电力公司电力科学研究院,江苏南京211103 [2]南京供电公司,江苏南京210019

出　　处：《江苏电机工程》2013年第1期50-52,共3页Jiangsu Electrical Engineering

摘　　要：在换流变启动调试中,需要通过测量CT二次侧电流的大小与相位校验CT的极性与变比。推导了换流站传输不同有功时无功的计算方法,并通过政平换流站实测数据验证了推导过程的正确性;提出了换流变CT二次侧电流的计算方法;当传输有功为10%的额定有功时,对比换流变CT二次侧电流实测值与理论计算值的大小和相位,验证了换流变CT变比与极性的正确性。In the testing of commutation station, the polarity and transformation ratio of CT need to be obtained by measuring the current magnitude and phase of the second side of CT. In this paper, calculation method of reactive power when transmitting different active power is inferred, of which the tightness is verified by testing data in the case of Zhengping commutation station. Calculation method of the second side of CT of converter transformer is proposed. Rightness of CT polarity and transformation ratio is confirmed by comparison with current value and calculated value of the second side of CT of testing data when transmitting 10% of nominal active power.

关 键 词：高压直流输电 继电保护 电流互感器 

分 类 号：TM714[电气工程—电力系统及自动化]