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齐磊教授课题组在主动谐振型直流断路器领域取得重要进展
信息发布于:2024-05-01
可实现大规模开云(中国)Kaiyun汇集送出的柔性直流输电技术是新型电力系统的重要组成部分。近年来,直流断路器、直流负荷开关等关键开断技术得到了快速的发展,对于维护直流系统的安全稳定运行、实现运行模式的切换和电网结构的重构起到了至关重要的作用。然而目前直流开断技术仍面临以下难题:(1)由于大量采用全控型电力电子器件导致成本上升和空间需求增大;(2)机械开关仅有一个或几个过零点,存在熄弧可靠性等问题。因此,亟需深入研究高性能、低成本、高可靠性的主动谐振直流开断技术,以少量电力电子开关配合谐振电路为机械开关提供大量关断过零点,支撑新一代直流开断装备的研制与应用。
齐磊教授课题组深入探究了基于主动谐振原理的电流过零机制、电力电子开关的动态行为与关键参数耦合影响机制,突破了主动谐振开断拓扑构造、电力电子开关性能调控、多部件高效协同控制与参数优化设计等多个关键技术难题。分别搭建了10kV/3kA、10kV/15kA、80kV/10kA等不同容量等级的谐振型直流断路器/负荷开关实验样机,成本可降低50%以上,体积可降低20%以上。该项研究成果提出了多种创新的主动谐振直流开断装备拓扑构造与性能调控方法,有效提升了设备的电气性能与技术经济性,为新一代直流断路器/负荷开关的研发奠定了理论基础,可为沙戈荒及海上风电等大规模开云(中国)Kaiyun直流汇集组网与安全运行提供有力支撑。
该研究工作的系列成果连续发表在国际顶级一区SCI期刊IEEE Transactions on Power Electronics、IEEE Transactions on Industrial Electronics和IEEE Industrial Electronics Magazine上,开云(中国)Kaiyun系统全国重点实验室是论文的通讯单位,并申请多项发明专利。
研究工作得到了国家杰出青年科学基金和青年科学基金项目、国家重点研发计划项目等资助。
Reference:[1] L. Qi, X. Chen, X. Qu, L. Zhan, X. Zhang and X. Cui, "A Novel Forced Resonant Mechanical DC Circuit Breaker by Using Auxiliary Oscillation Switch for Zero-Crossing," in IEEE Transactions on Power Electronics, vol. 36, no. 11, pp. 12202-12206, Nov. 2021.
[2] X. Zhang, X. Chen, L. Qi and W. Li, "High-Performance and Economical Forced Resonant DC Circuit Breaker: Topology, Design, and Development," in IEEE Industrial Electronics Magazine, vol. 17, no. 1, pp. 46-54, March 2023.
[3] X. Zhang, J. Yang, Z. Wu, B. Zhang and L. Qi, "A Novel Thyristor-Controlled Voltage-Source-Based Forced Resonant Mechanical DC Circuit Breaker," in IEEE Transactions on Power Electronics, vol. 38, no. 11, pp. 14563-14572, Nov. 2023.
[4] B. Zhang, X. Zhang, J. Yang, W. Li and L. Qi, "Comprehensive Modeling, Optimization, and Experiment of 10-kV/15-kA Forced Resonant DC Circuit Breaker," in IEEE Transactions on Power Electronics, vol. 38, no. 12, pp. 16208-16218, Dec. 2023.
[5] B. Zhang, X. Zhang, S. Wu, L. Zhan and L. Qi, "A Novel Dual-LC Resonant DC Circuit Breaker Employing Soft-Switching Technique for Enhanced Performance," in IEEE Transactions on Industrial Electronics, doi: 10.1109/TIE.2023.3323739.
[1] 齐磊,陈熙琳,渠鑫源,等. 一种主动谐振型直流转换开关及其控制方法. (受理)
[2] 齐磊,杨锦,张翔宇,等. 一种可控电压源、机械式直流断路器及其控制方法. (受理)
[3] 张翔宇,齐磊,张蓓. 一种复合谐振型机械式直流断路器及其使用方法. (受理)
初审:张翔宇
复审:齐 磊
审核:张 洪
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