摘要
目前设计的电力能源数据同步交流采样方法的采样能力较弱、调配信号处理能力较差,导致采样误差过大。为了解决上述问题,该研究基于DSP设计了一种新的电力能源数据多通道同步交流采样方法,分析了直流采样和交流采样两种方式,并确定了理想同步条件,利用DSP定时器实现跟踪评论交流采样,减少了采样误差。基于此,选定电网周期的采集变化量,再利用A/D变换和D/A变换确定脉冲个数,实现同步交流采样。实验结果表明,基于DSP的电力能源数据多通道同步交流采样方法能够有效提高调配信号处理能力,降低采样误差率。
The current synchronous AC sampling method of power energy data has weak sampling ability and poor signal processing ability,which leads to large sampling error.In order to solve the above problems,a new multi-channel synchronous AC sampling method of power energy data is designed based on DSP,DC sampling and AC sampling are analyzed,and the ideal synchronization condition is determined.DSP timer is used to track and comment ac sampling to reduce sampling error.Based on this,the collection variation of the power grid cycle is selected,and the number of pulses is determined by A/D transformation and D/A transformation to realize synchronous AC sampling.The experimental results show that the multi-channel synchronous AC sampling method of power energy data based on DSP can effectively improve the signal processing ability and reduce the sampling error rate.
作者
张述杰
ZHANG Shujie(Zibo Power Supply Company,Zibo 255400,China)
出处
《电子设计工程》
2022年第13期137-141,共5页
Electronic Design Engineering
基金
国网山东省电力公司科技项目资助(520603180088)。
