Study of Phase Compensation on Power Measurement
Phase deviation is an important error source to power measurement device.Based on some analysis upon the equivalent circuits for voltage sampling, current sampling and filter, the error models of phase deviation under different frequency are established in this paper;the calculate methods of active power and reactive power by synchronous AC sampling are introduced and a new method of phase compensation on power measurement is brought forward;a segment linearization correction method for the calibration points phase deviation is presented by choosing the turning points of the curve of current and phase deviation;steps of power compensation are given and the precision of power measurement is improved.The measurement precision both active power and reactive power of the online detector of three-phase AC sampling based on the algorithm proposed in this paper are less than 0.05％.
power measurement source of phase deviation power compensation
Xianting Zhang Pengcheng Nie Qiong chen
School of Information Engineering Nanchang Hangkong University Nanchang,China
国际会议
太原
英文
516-519
2011-02-26（万方平台首次上网日期，不代表论文的发表时间）