动力学仿真在双动自能式断路器开发中的应用

Application of Dynamic Simulation in the Development of Dual-Motion Self-Blast Circuit Breakers

双动自能式灭弧室凭借操作功低、可靠性高的优势,在252 kV的SF6高压断路器产品中有着成熟的应用。结合252 kV双动自能式断路器的开发项目,提出了动力学仿真在其产品开发中的实际应用。估算了分合闸操作功,用于机构的选型;利用刚体及刚柔耦合的多体动力学仿真得到关键零部件的受力结果,介绍了在理论和经验的指导下,动力学仿真在解决实际故障中的应用,并通过具体参数的对比,指出了新型的双动自能式断路器的明显优势。

With the advantage of low operating energy and high reliability,the dual-motion self-blast interrupter has a mature application in 252 kV SF6 high-voltage circuit breaker products.In this paper,combined with the development project of 252 kV dual-motion self-blast circuit breaker,the practical application of dynamic simulation in product development is proposed.Firstly,the operating work of the closing and opening is estimated for the selection of the mechanism.Then,the stress results of key components are obtained by multi-body dynamic simulation of rigid body and rigid-flexible coupling,and the application of dynamic simulation in solving practical faults under the guidance of theory and experience is introduced.Finally,through the comparison of specific parameters,the obvious advantages of the new dual-motion self-blast circuit breaker are pointed out.