Technology and Application of Power Switching Equipment for Future Power Systems

RONG Mingzhe; WU Yifei; YANG Aijun; SUN Hao; XIAO Yu; YANG Fei; WU Yi; WANG Xiaohua

doi:10.7652/xjtuxb202604001

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Technology and Application of Power Switching Equipment for Future Power Systems

Special Topic Outstanding Achievements in Natural Sciences of Xi'an Jiaotong University | 更新时间：2026-04-10

- Technology and Application of Power Switching Equipment for Future Power Systems
- Journal of Xi'an Jiaotong University Vol. 60, Issue 4, Pages: 1-14(2026)
- 作者机构：
  
  西安交通大学电工材料电气绝缘全国重点实验室，710049，西安
- 作者简介：
- 基金信息：
- DOI：10.7652/xjtuxb202604001
  CLC： TM76
- Received：28 September 2025，
  
  Online First：31 December 2025，
  
  Published：10 April 2026
- 稿件说明：
移动端阅览
RONG Mingzhe, WU Yifei, YANG Aijun, et al. Technology and Application of Power Switching Equipment for Future Power Systems[J]. Journal of Xi'an Jiaotong University, 2026, 60(4): 1-14.
DOI：

RONG Mingzhe, WU Yifei, YANG Aijun, et al. Technology and Application of Power Switching Equipment for Future Power Systems[J]. Journal of Xi'an Jiaotong University, 2026, 60(4): 1-14. DOI： 10.7652/xjtuxb202604001.

摘要

电力开关装备是实现电力能源调度、运行模式转换、各类故障切除的核心装备，是电力系统的安全卫士，一旦开断失败，将导致系统瘫痪甚至大面积设备损毁。电力系统的每次技术变革，电力开关装备都是一大瓶颈。西安交通大学荣命哲创新团队以电力开关装备科技自立自强为目标，在交流开关装备技术、直流开关装备技术、数字化设计及新一代开关装备技术3个方面取得了开创性成果。首先，颠覆被动等待电流自然过零开断的传统技术，化被动为主动，提出了电弧零区和电流零点主动调控的交流开断新方法，成功研制出550 kV/80 kA双断口断路器及全球首台31.5 kV/210 kA环保型发电机快速断路器，解决了超大短路电流开断难题；其次，颠覆必须外加装置强迫电流过零的传统技术，化电弧之害为利，首创电弧能量驱动的直流开断新原理，研制了4 kV/70 kA及10 kV/100 kA中压直流开关装备，占领了大容量直流开断技术领域国际制高点；最后，开发了多组分放电等离子体基础数据库和电力开关装备数字化设计软件，创建了开关装备数字化设计体系，并基于此研制了国内首台126 kV高压无氟环保组合电器及电压等级世界最高的800 kV智能开关装备，引领了电力开关装备环保化和智能化发展。面向未来电力系统发展，将继续深耕极端条件下的新型开断机理与数字化技术，致力于提升电力装备的经济性与可靠性，为构建新型电力系统提供坚实的技术支撑。

Abstract

Power switching equipment serves as the core apparatus for electricity dispatch，operational mode conversion，and fault clearance，acting as the “safety guardian”of the power system.Its failure could lead to system collapse or widespread equipment damage.In each technological transformation of power systems，power switching equipment has been a critical bottleneck.With the obj ective of achieving technological independence in power switching equipment，the innovation team led by professor Rong Mingzhe at Xi'an Jiaotong University has made groundbreaking advances in three areas：AC switching equipment technology，DC switching equipment technology，and digital design along with next-generation switching equipment technology.First，by overturning the traditional passive approach that relies on natural current zero-crossing for interruption，a new AC interruption method was proposed that actively regulates the arc zero-region and current zeropoint.This enabled the successful development of a 550 kV/80 kA double-break circuit breaker and the world's first 31.5 kV/210 kA environmentally friendly generator circuit breaker，resolving the challenge of interrupting extremely high short-circuit currents.Second，abandoning the conventional technique that requires external devices to force current zero-crossing，a novel DC interruption principle driven by arc energy was pioneered，turning the harmful effects of arcing into an advantage.This resulted in the development of 4 kV/70 kA and 10 kV/100 kA medium-voltage DC switching equipment，establishing a leading international position in high-capacity DC interruption technology.Finally，a multi-component discharge plasma fundamental database and digital design software for power switching equipment were developed，establishing a digital design system for switching equipment.Based on this，China's first 126 kV high-voltage fluorine-free environmentally friendly gas-insulated switchgear（GIS）and the world's highest-voltage 800 kV intelligent switching equipment were developed，leading the trend toward environmental sustainability and intelligence in power switching equipment.Looking forward to the development of future power systems，further research will be devoted to novel interruption mechanisms under extreme conditions and digital technologies，with the aim of enhancing the economy and reliability of power equipment and providing solid technical support for building the new power system.

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references

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