超高压断路器液压操动机构分合闸特性研究  

Study on the Opening and Closing Characteristics of Super-high Voltage Circuit Breaker with Hydraulic Operating Mechanism

作　　者：刘伟[1] 徐兵[1] 杨华勇[1] 伍中宇[1] 

机构地区：[1]浙江大学流体传动及控制国家重点实验室,浙江杭州310027

出　　处：《机床与液压》2008年第10期4-7,51,共5页Machine Tool & Hydraulics

基　　金：国家"十一五"科技支撑计划(2006BAF01B12-02);国家自然科学基金资助项目(50675203)

摘　　要：分析了550kV SF6超高压断路器液压操动机构的分合闸运动特性,建立了分合闸系统包括开关电磁铁、高速大流量控制阀、液压缸及断路器负载等结构的仿真模型,对液压机构的分合闸速度特性、电磁铁及多级控制阀的各级阀响应时间等进行了仿真分析,并通过实验测试了电磁铁位移、阀腔内油压、液压缸位移速度等特性,证明了仿真模型的准确性。The working principle of hydraulic operating mechanism of 550kV high voltage circuit breaker was analyzed. Mathematical models including solenoid high-speed great flow control valve and cylinder of the system were developed. Simulations were carried out with AMESim, considering the factor that influences on moving properties of hydraulic operating mechanism such as back force in puff. Experiments were carried out for operation of circuit breaker hydraulic, which validated the simulation results and models.

关 键 词：液压操动机构 电磁方向控制阀 分合闸 响应时间 断路器 

分 类 号：TG156[金属学及工艺—热处理]