基于微机的单相交流同步采样技术  

Single-phase AC Synchronous Sampling Technology Based on Microcomputer

作　　者：秦小伟 Qin Xiaowei(Hunan Institute of Humanities,Science and Technology,Loudi,China)

机构地区：[1]湖南人文科技学院,湖南娄底

出　　处：《科学技术创新》2023年第20期18-21,共4页Scientific and Technological Innovation

基　　金：湖南省研究生科研创新项目(CX20211228)。

摘　　要：在我国电力系统中,单相交流电应用广泛,在低压电网中也经常需要对单相线路中的电压电流进行交流采样测量,用以数据分析和故障判断。为此,文中提出了一种基于微机的交流采样方案,选用STM32F103VET6单片机作为控制核心,进行了设计验证,为了减少电力参数的计算误差,通过控制采样周期与电网频率同步,利用单片机内部双ADC模块对单相交流的电压、电流并行同步采样,以提高电力参数的计算精度。验证方案取得了较好的效果,对微机交流采样的设计有一定的参考价值。In our country's power systems,single-phase AC is widely used,and the voltage and current sampling measurement in the low-voltage grid are often needed for data analysis and fault judgment.Therefore,a microcomputer-based AC sampling scheme is proposed in this paper.STM32F103VET6 single chip microcomputer is selected as the control core,and the design verification is carried out.In order to reduce the calculation error of power parameters,the dual ADC module inside the single chip microcomputer is used to synchronize the sampling period with the power grid frequency,and the single-phase AC voltage and current are simultaneously sampled.To improve the calculation accuracy of power parameters.The verification scheme has achieved a good effect,and has certain reference value for the design of microcomputer AC sampling.

关 键 词：单相 交流采样 ADC 并行 电力参数 

分 类 号：TM64[电气工程—电力系统及自动化]