CAJ | 학술논문

为了准确测量电力系统中的谐波和间谐波参数，提高电能质量，提出一种将FFT频谱区间连续细化算法与改进的蚁群优化相结合的混合算法。通过改进蚁群算法的适应度函数和转移概率，降低了算法的复杂度，提高了算法的速度。算法的原理是通过FFT频谱区间连续细化算法检测谐波和间谐波频率值，根据频率检测值构建幅值和相位的适应度函数，运用改进的蚁群算法对幅值和相位参数进行估计，从而实现电力谐波和间谐波参数的检测与分析。通过对比仿真实验，验证了该混合算法能够获得较高精度的谐波和间谐波参数值，具备较强的抗噪声干扰能力。
위료준학측량전력계통중적해파화간해파삼수，제고전능질량，제출일충장FFT빈보구간련속세화산법여개진적의군우화상결합적혼합산법。통과개진의군산법적괄응도함수화전이개솔，강저료산법적복잡도，제고료산법적속도。산법적원리시통과FFT빈보구간련속세화산법검측해파화간해파빈솔치，근거빈솔검측치구건폭치화상위적괄응도함수，운용개진적의군산법대폭치화상위삼수진행고계，종이실현전력해파화간해파삼수적검측여분석。통과대비방진실험，험증료해혼합산법능구획득교고정도적해파화간해파삼수치，구비교강적항조성간우능력。
In order to accurately measure the harmonic and inter-harmonic parameters in power system and to improve the power quality, a hybrid algorithm combining FFT spectrum interval continuous refinement algorithm and improved ant colony optimization ( ACO) is proposed.By improving the fitness function of ACO algorithm and the transition probability, the com-plexity is reduced and the speed is improved.FFT spectrum interval continuous refinement algorithm is used to detect the fre-quency values of harmonics and inter-harmonics, then according to the frequency detection values the fitness function of the amplitude and phase parameters is established.And then the improved ACO algorithm is used to estimate the parameters of amplitude and phase so as to realize the detection and analysis of harmonic and inter-harmonic parameters.The comparison of computer simulation results verifies that the proposed hybrid algorithm can accurately estimate the parameters of harmonics and inter-harmonics, and have a stronger ability to resist noise.