CAJ | 학술논문

针对智能电能表动态误差特性测试问题，分析了确定型测试激励信号的时域和频域特征，包括变幅值动态负荷激励信号、变频率动态负荷激励信号和变相位动态负荷激励信号。分别从激励信号的幅值变化速率、激励电流和瞬时功率包含的频率成分，动态负荷下的激励模式，以及激励信号控制产生的难易程度四个方面对这几类信号进行了分析比较，结果表明梯形包络激励电流信号用于测试智能电能表的动态误差比其它激励测试信号优点更多。
침대지능전능표동태오차특성측시문제，분석료학정형측시격려신호적시역화빈역특정，포괄변폭치동태부하격려신호、변빈솔동태부하격려신호화변상위동태부하격려신호。분별종격려신호적폭치변화속솔、격려전류화순시공솔포함적빈솔성분，동태부하하적격려모식，이급격려신호공제산생적난역정도사개방면대저궤류신호진행료분석비교，결과표명제형포락격려전류신호용우측시지능전능표적동태오차비기타격려측시신호우점경다。
In order to research the dynamic error characteristic of intelligent electric meter, the characteristics in both time and frequency domain of definitive excitation signals which include variable amplitude dynamic load excitation signal, variable frequency dynamic load excitation signal and variable phase dynamic load excitation signal are analyzed in this paper. These signals are compared respectively from the following four aspects: amplitude changes rate of excitation signal, frequency components of excitation current and instantaneous power, excitation pattern under dynamic load and the ease of excitation signal control. The results show that the trapezoid envelope excitation current signal is more appropriate to test the dynamic error of intelligent electric meter than other excitation signals.