【摘要】 对于地磁感应电流(GIC)对电力系统的有害影响,国外进行过大量的研究,但国内研究不够广泛。随着我国西电东送、全国联网战略的逐步实施,将要形成大量东西走向的超高压、大容量、远距离输电线路。我国部分地区地理位置和地质结构与受到过GIC影响的一些国家相似,我国电网是否存在GIC影响问题需要进行研究。在给出电网GIC机理、特征的基础上,通过对磁暴影响实例和我国电网综合情况分析得出初步结论,指出研究我国电网GIC影响的必要性,并就相关问题提出建议。更多还原

【Abstract】 <abstract>omagnetic induced current (GIC) may cause harmful effects on power systems. Many references have been published in country outside China, but in China there are very few research work. With the development of power delivery from west China to the east and enhanced national interconnection throughout China, many extra-high voltage, large capacity, and long distance transmission lines will be built from west to east. The location and geographical structures in some areas in China are similar to the countries affected by GIC, it is necessary to research on whether GIC has effects on Chinese power systems. This paper analyzes the principle and characteristics of GIC and its possible effects on power systems. By analyzing the examples influenced by geomagnetic storms and the integrated situation of power networks, general conclusions are put forward, and the necessity of studying the effects of GIC on power networks in our country is discussed. As a result, some suggestions are provided concerning the GIC topics.更多还原