从20世纪70年代开始,前苏联、日本、美国、意大利等国家出于满足国内电力供应,实现电能的长距离、大负荷输送,解决输电走廊不足等不同原因,集中开展了特高压输电的研究和建设工作,取得了丰富成果。经过近四十年的发展和实践考验,其中的成败得失和经验教训,为我国的特高压电网建设提供了有益的借鉴和参考。 Since the 1970s, the countries such as the former Soviet Union, Japan, the United States and Italy have concentrated on the research on UHV transmission for different reasons such as satisfying domestic power supply, realizing long-distance and heavy load transmission of power, and solving the problem of insufficient transmission corridors. And construction work, has achieved rich results. After nearly forty years of development and practice tests, the successes and failures and lessons learned have provided useful references for the construction of UHV power grids in our country.