摘要
列举了天生桥—广州直流输电系统、三峡—广东鹅城直流输电系统、贵州高坡—广东肇庆直流输电系统调试投运期间的大量现场实测数据,并对这些数据进行分析,结果表明直流输电系统单极大地回线方式或双极不对称方式运行时对交流系统中性点接地运行变压器的噪声、变压器中性线直流电流以及电网谐波电压均会产生较大影响,严重时可能损坏电力设备。该结论对直流输电系统的设计、建设、运行以及交流系统采取相应措施有极重要的参考价值。
This paper lists a mass of field test data during the commissioning of the three high voltage direct current （HVDC） transmission systems of Tianshengqiao-Guangzhou, the Three Gorges-Echeng in Guangdong, and Gaopo in Guizhou- Zhaoqing in Guangdong. The analysis of these data shows that the monopolar ground circuit operation mode or the bipolar asymmetric mode of HVDC transmission system has great impact on the noise and neutral line direct current of transformers with earthed neutral point and the harmonic voltage of the AC system, and is likely to damage power equipment in serious cases. This conclusion has vital referential value to the design, construction and operation of HVDC system as well as the adoption of corresponding measures for AC system.
出处
《广东电力》
2006年第1期1-7,共7页
Guangdong Electric Power
关键词
直流输电
单极大地回线方式
变压器
噪声
直流偏磁
谐波
direct current transmissiom monopolar ground circuit operation mode
transformer
noise
direct current magnetic biasing
harmonic
作者简介
梅桂华（1963-），男，湖北孝感人，电力系统分析高级工程师，工学硕士．主要从事电力系统分析工作。
