基于DSP的智能断路器采样模块的设计

现代智能断路器对可靠性、精确性的要求越来越高,其采样单元也必然向着高精度的方向发展。文中对基于DSP的智能断路器的采样子系统进行了阐述,详细说明了过采样及其相关技术在智能断路器中的应用,同时分析了相关的外围采样电路,并提出了用DSP实现过采样子系统的硬件和软件设计。最后根据对采集信号分别采用常规和过采样技术进行测量和模数转换的实验,得出过采样方法会使智能断路器采样精度显著提高的结论。

The Design of Intelligent Circuit Breaker Sampling Module Based on DSP

Modern intelligent circuit breaker is more and more high to reliability and accuracy,therefore sample units are certainly in the direction toward the development of high-precision.In this paper,the sampling subsystem of intelligent circuit breaker based on DSP is introduced firstly,the application of oversampling and the corresponding technology in the intelligent circuit breaker is elaborated secondly.Meanwhile the relevant peripheral sampling circuit is analyzed,then the hardware and software implementation on the oversampling subsystem with DSP are included.Finally the experiment which respectively adopt traditional techniques and oversampling method have shown the method of oversampling can make the precision of intelligent circuit breaker more higher.