【摘要】：通過理論分析環(huán)形配電網(wǎng)的諧波放大原理,對比安裝在線路中點且阻抗匹配的阻性有源電力濾波器(RAPF)和對稱安裝在不同位置的分頻調(diào)節(jié)RAPF的抑制效果,提出了一種適用于環(huán)形配電網(wǎng)的分頻調(diào)節(jié)RAPF的位置策略。若線路長度小于諧波波長的1/2,靠近線路中點的對稱位置為最優(yōu)安裝位置;若線路長度大于諧波波長的1/2,距諧波源1/4波長的對稱位置為最優(yōu)安裝位置。與安裝在線路中點且阻抗匹配的RAPF相比,安裝在最優(yōu)位置的分頻調(diào)節(jié)RAPF,當其電導增益≥匹配的電導時,均能有效地衰減諧波,獲得更好的抑制效果;且電導增益越大,諧波抑制效果越好。同時,該方案對線路參數(shù)的改變具有更好的適應(yīng)性。仿真和實驗結(jié)果驗證了該方案的有效性。
[Abstract]:The harmonic amplification principle of ring distribution network is analyzed theoretically, and the suppression effects of impedance-matched resistive active power filter (RAPF) installed at the middle point of the line and frequency division RAPF installed symmetrically in different locations are compared. In this paper, a position strategy of frequency division RAPF for ring distribution network is proposed. If the length of the line is less than 1 ~ 2 of the harmonic wavelength, the symmetrical position near the middle point of the line is the optimal installation position, and if the line length is greater than 1 ~ 2 of the harmonic wavelength, the symmetrical position of the distance harmonic source of 1 ~ 4 wavelength is the optimal installation position. Compared with the impedance-matched RAPF installed at the middle point of the line, the frequency-division RAPF, installed in the optimal position can effectively attenuate the harmonics and obtain better suppression effect when the conductance gain is 鈮，

本文編號：2465914