具有图形组态功能的电弧快速光纤测试系统

Optical Fiber Measurement System for Arc Motion with Graphic Configuration

研究开发了一整套新型二维光纤系统用于低压塑壳断路器(MCCB)开断过程电弧运动形态的测试.系统的软件部分采用观察者对象行为型设计模式,通过建立动态图元与实验数据之间的松散耦合实现了图形组态功能,增强了系统的适用性和灵活性,从而对MCCB中电弧运动形态进行有效地仿真分析.采用非均匀介质纤维透镜,在观察原理上解决了光纤测试系统观测区域重叠的问题.电路设计采用全硬件控制逻辑,使大量数据的同步实时高速采集过程不再受微处理器总线操作周期与容量的限制.实验结果表明,该系统能够有效地直接观测电弧的运动形态,为研究和提高塑壳断路器的开断性能提供了更为先进的精确测试手段.

To measure the interruption characteristic of low voltage molded case circuit breakers (MCCB) more precisely, a set of 2-D optical fiber system is developed. The observer behavioral design pattern is applied to the software and the loosely coupled relationship between graph and experimental data is once established, the graphic configuration can be implemented for simulation analysis, and the flexibility and applicability of the whole system are obviously improved. To avoid the error derived from the overlap among the neighboring optical fibers, lens with inhomogeneous dielectric is fixed on the top of each fiber. Furthermore, the full hardware control logic facilitates the real-time, synchronous and high-speed processing and breaks through the restricted bus operation frequency range and data stream capacity in a microprocessor. It demonstrates that the system provides a better research technique especially for new generation MCCB with gas driven arc.