摘要
电能质量信号纷繁复杂,目前还没有一个很好的适用于电信号的模型。本文用预测模型来描述并分析理想电信号的正弦波,振荡衰减正弦波,衰减直流分量,还进一步提出了用多项式来进行信号预测。并给出了电信号中各分量的识别及参数求解方法。结合不同的噪声处理方法,本模型也适用于分析噪声下的电信号。仿真测试表明模型的正确性。
Electrical power quality signals are always complex, there is no any model which is fit for it yet. This paper uses forecast model to describe and analyze ideal electrical power signals' sine waves, surge attenuate sine waves and attenuate DC, even polynomial signals. And also gives some identify and parameters calculate methods for components of electrical power signals. This model also can analyze electrical signals with noises by using different noises process methods. Simulation results have verified this model's validity.
出处
《电测与仪表》
北大核心
2004年第11期1-3,共3页
Electrical Measurement & Instrumentation
关键词
电力系统
谐波分析
电能质量信号
预测模型
电网
AR spectrum estimation
prony method
pisarenko method
exponential signals
