摘要
基于爆炸式高速开断器和灭弧熔断器的故障限流装置是目前应用最广泛的大容量短路保护设备。为得到爆炸式高速开断器的设计依据和优化原则,通过建立高速开断器的热电耦合模型和非线性动力学模型,分析了结构尺寸对其温升和分断特性的影响,得出了关键参数的优化选取原则。通过仿真得出了装药量的合适选取范围。为验证研究结论,设计了额定10kV/2000A的装置样机并进行了温升与分断试验。样机额定通流下的端子温升仅为37K,功耗72.4W;分断时间160μs,分断速度达到了69.7m/s。试验结果与仿真一致,相关研究结论可用于更大容量高速开断器的设计。
Fault current limiter based on high speed interrupter and quenching fuse is the most extensively used short-circuits protection on high-capacity system.To obtain optimal principle and design basis,we established a thermoelectric coupling and nonlinear dynamics model,and analyzed the effects of structural parameters on temperature rising and interrupting characteristics.Some optimized parameters were achieved through simulations.A 10 kV/2000 A prototype was developed for temperature rising and interrupting test to verify the conclusions.Experimental results show that the temperature rise is 37 K and the power consumption is only 72.4 W.The opening time is 160 μs and an opening velocity of 69.7 m/s can be realized.The results agree with the simulation ones which can be used to design high speed interrupter for higher capacity system.
出处
《高电压技术》
EI
CAS
CSCD
北大核心
2011年第1期221-226,共6页
High Voltage Engineering
基金
国家自然科学基金(50877078)~~
关键词
大容量
高速开断器
热电耦合
非线性动力学
优化设计
温升
high-capacity
high-speed interrupter
thermoelectric coupling
nonlinear dynamics
optimum design
temperature rise
