超导电力技术应用前景分析

过去几年来,实用高温超导材料制备技术取得了重大的进展。Bi-系统高温超导带材已经实现批量化生产,第二代高温超导带材（YBCO涂层导体）也取得了重要的进展。与此同时,超导电力技术在研究开发也进展迅速,超导储能系统已经有产品出售,高温超导限流器,高温超导电缆,高温超导变压器高温超导电机都相继进入示范试验运行阶段。我国电力工业发展迅速,电网规模日益扩大,对电能质量,供电可靠性和安全性提出了更高的要求,超导电力技术符合我国电力工业发展的需要,近期内,结合电力电子技术和超导技术的优势,超导限流器和超导储能技术将首先实现产业化,但是,超导电力技术能否走向大规模应用还有赖于在以下两个方面取得突破：一是制备低成本,低损耗,机械性能良好的高温超导线材;二是提高低温系统和制冷系统的长期运行可靠性,降低其造价和维护运行费用。

Prospects Analysis for Superconducting Power Technology

The question for the practical application of superconducting (SC) power technology is not "whether", but is "when". Jointed with power electronics and SC technology, the active SC fault current limiter (SFCL), SC magnetic energy storage (SMES) and current-limiting SMES would be put into practical application before other applications such as SC power cable, SC transformer and SC motor etc. Nevertheless, it is necessary to fabricate out high Tc SC wires with high current density and low cost, and make the cryogenic system cheap, reliable and easy to maintain.