现代电力系统中, 由于可再生能源输出功率, 负荷变化以及其他随机过程的存在,
使得系统状态参数中往往混杂着噪声, 因此有必要采取适当的方法, 从随机干扰的观测信号中 …

Harmonic estimation is an important topic in power system signal processing. Windowed
interpolation fast Fourier transformation (WIFFT) is an efficient algorithm for power system …

This paper focuses on the accurate frequency estimation of power signals corrupted by a
stationary white noise. The noneven item interpolation FFT based on the triangular self …

This paper focuses on the low-computation harmonic-analysis procedure with sufficient
suppression of spectral leakage and picket-fence effect. The interpolated FFT algorithm …

摘要在离散小波变换的基础上, 结合加窗插值FFT, 提出了一种组合式谐波分析算法.
该算法先用加窗插值FFT 计算基波频率, 然后对加窗信号进行频率调制, 将谐波分量变换成直流 …

大量非线性元件的应用导致电网谐波问题愈发严重, 快速傅立叶变换(FFT) 在非同步采样条件下
难以实现谐波的精确检测, 通过加窗插值可以改善FFT 算法的准确度. 根据信号加Hanning …

A novel approach to harmonic analysis for industrial power systems based on windowed fast
Fourier transform is presented. First, the desirable sidelobe window (DSW) is constructed …

摘要利用行波的反射可以有效地探测电缆的局部缺陷和故障等阻抗异变点,
反射波的传播距离和极性可分别用于定位阻抗异变点和判断阻抗异变点的类型. 频域反射(FDR) …

摘要电力系统稳态信号非同步采样时, 利用离散傅里叶变换分析谐波会使各频率成分产生频谱
泄漏, 增大了谐波参数的测量误差. 为进一步抑制频谱泄漏, 提高谐波测量的准确度 …

Monitoring the voltage frequency is of great significance in power systems. In this paper we
propose two novel frequency estimators, namely the unbalanced HAM-WLS (UHW) …