摘要
针对电力系统中对功率量测量的特殊要求,分析了功率误差产生的原因,提出在同步采样的基础上采用自适应技术提高功率的测量精度,同时利用软件自学习补偿算法,自动补偿测量通道产生的幅值衰减对测量精度的影响,实践证明该方法在实际计量应用中效果明显,精度显著提高。
Because of the special request of power measurement in the electrical power system, on the basis of the synchronous sampling, the paper analyses the reason for power errors and proposes to improve the precision of measurement of the electric power and energy by the adaptive sampling. Moreover the software self-learning compensation algorithm is given to compensate automatically the measuring accuracy influence as a result of the amplitude attenuation produced by the channel in the paper. The effect in the practical measurement application is evident and the orecision is largely enhanced.
出处
《电力系统保护与控制》
EI
CSCD
北大核心
2009年第13期38-42,87,共6页
Power System Protection and Control
关键词
数据采集
自适应采样
DSP
自学习
功率误差
data acquisition
adaptive sampling
digital signal processor (DSP)
self-learning
power error