【摘要】 准确估计电力电子设备工作时所产生谐波的功率对脉冲电能计量具有十分重要的意义。提出归一化频率自适应的谐波功率计量算法。首先通过该方法分解出电机模型电路中被污染信号的各次谐波成分,进而实现对电机中谐波有功功率的实时跟踪。接着,以一组富含时变谐波的实测电火花信号为待处理信号,验证该算法在典型电火花脉冲电源信号谐波功率计量方面的应用。仿真结果表明,该算法在频率时变脉冲信号的电能计量方面具有快速性和准确性。更多还原

【Abstract】 Estimating the harmonic powers generated by working power electronic equipments accurately is of great significance to electric energy measurement of electric energy pulse.The algorithm of harmonic power measurement based on normalized frequency adaptive method is proposed.First,each harmonic component in contaminated signals of motor model circuit is resolved by this method,later active power of harmonics in motor will be tracked in real time.In order to verify that the algorithm can also be useful in harmonic power measurement with typical pulse power source of electric spark,a group of actual electric spark signals which contain time-varying harmonics is given as input signals of this method.The simulation results show that the algorithm can measure electric energy with frequency time-varying pulse signals quickly and accurately.更多还原