利用递推最小二乘算法和自适应采样实现微机电量变送器  

USING THE RECURSIVE LEAST SQUARE ALGORITHM AND ADAPTIVESAMPLING TO REALIZE MICROCOMPUTER ELECTRICAL QUANTITY TRANSDUCER

作　　者：李振然[1] 

机构地区：[1]广西大学电气系

出　　处：《电力系统自动化》1995年第3期48-52,共5页Automation of Electric Power Systems

摘　　要：根据递推最小二乘算法，从受到干扰污染的输入信号中估计基波电压（电流）复数振幅的实部和虚部，利用它们对电流、电压、有功功率和无功功率的有效值进行计算，利用电压相角变化来测量频率和功率因数。通过自适应调整采样间隔，保证当频率改变时每周波均匀采样Ｎ点，提高了测量精度，加快收敛速度，减小计算工作量，从而减小响应时间。In this paper,recursive least square algorithm was used to estimate the real part and imaginarg part of the complex amplitude of the fundamental voltage of the input signals that suf-fered noise pollution. The effective value of currents,voltages, active power and reactive power were calculated. the frequency and power factor were measured by using voltage phase anglechange. The accuracy of measurement was raised, the velocity of convergence was improved andcalculating quantity was decreased by adaptive sampling.

关 键 词：最小二乘算法 电量变送器 微机 电力系统调度 

分 类 号：TM734[电气工程—电力系统及自动化]