摘要
新型电子式电流互感器相比于铁磁式电流互感器越来越显示出其技术优势,由此电子式电流互感器的研发已成为一个潮流,而其研发的关键是实现一个性能优良的数据采集系统。本文以一款微功耗、性价比极高的PIC系列单片机PIC16F676为核心构成了该数据采集系统,通过优化器件选型和软件编码方案来实现系统的低功耗和强抗扰性。最后实验证明,由该系统构成的电子式电流互感器样机达到了IEC标准所规定的测量0.1级的精度,从而也验证了该系统是一个可行的、高精度的系统。
New-type electronic current transformers show their technical advantages over iron-magnetism current transformers day by day, so it has become a tide to design electronic current transformers. The key to the design is fulfilling a data acquisition system of high performance. In this paper, one kind of PIC serial microcontrollers named PIC16F676 is used as the core, which is of tiny power consumption and high ratio of quality to price, to make up of the data acquisition system. In the paper, the low power-consumption and strong anti-jamming characters of the system are realized by optimizing apparatus selection and software coding scheme. At last, it is proved that the electronic current transformers＇ sample machine which is made up of the system reaches the precision of test level 0. 1 through experiments, which is set in IEC＇ standard. Accordingly, that the system is a feasible and quite precise one is also validated.
出处
《电子测量技术》
2007年第3期97-99,共3页
Electronic Measurement Technology
