基于奇次諧波估計(jì)的分布式電源并網(wǎng)孤島檢測(cè)方法
發(fā)布時(shí)間:2018-11-15 20:29
【摘要】:針對(duì)分布式發(fā)電系統(tǒng)中的孤島現(xiàn)象,提出一種基于奇次諧波估計(jì)的分布式電源并網(wǎng)孤島檢測(cè)方法。首先介紹準(zhǔn)比例諧振控制,并將模糊控制與其相結(jié)合,用于減少逆變器側(cè)產(chǎn)生的諧波,然后詳細(xì)闡述利用卡爾曼濾波的諧波估計(jì)方法以及孤島判斷的方法,最后通過(guò)Matlab/Simulink平臺(tái)進(jìn)行仿真實(shí)驗(yàn)。仿真結(jié)果表明,該方法檢測(cè)速度較快、盲區(qū)較小,驗(yàn)證了實(shí)驗(yàn)的有效性和可行性。
[Abstract]:In order to solve the islanding phenomenon in distributed generation systems, a novel detection method based on odd-order harmonic estimation is proposed for islanding detection in grid-connected distributed generation systems. First, the quasi-proportional resonance control is introduced, and the fuzzy control is combined with it to reduce the harmonics generated by the inverter side. Then the harmonic estimation method using Kalman filter and the method of islanding judgment are described in detail. Finally, the simulation experiment is carried out on Matlab/Simulink platform. The simulation results show that the method is fast and the blind area is small. The validity and feasibility of the experiment are verified.
【作者單位】: 山東科技大學(xué)電氣與自動(dòng)化工程學(xué)院;
【基金】:山東省中青年科學(xué)家獎(jiǎng)勵(lì)基金項(xiàng)目(BS2013DX012) 中國(guó)博士后科學(xué)基金(2014M551934) 山東省博士后基金(201303068)
【分類(lèi)號(hào)】:TN86
本文編號(hào):2334370
[Abstract]:In order to solve the islanding phenomenon in distributed generation systems, a novel detection method based on odd-order harmonic estimation is proposed for islanding detection in grid-connected distributed generation systems. First, the quasi-proportional resonance control is introduced, and the fuzzy control is combined with it to reduce the harmonics generated by the inverter side. Then the harmonic estimation method using Kalman filter and the method of islanding judgment are described in detail. Finally, the simulation experiment is carried out on Matlab/Simulink platform. The simulation results show that the method is fast and the blind area is small. The validity and feasibility of the experiment are verified.
【作者單位】: 山東科技大學(xué)電氣與自動(dòng)化工程學(xué)院;
【基金】:山東省中青年科學(xué)家獎(jiǎng)勵(lì)基金項(xiàng)目(BS2013DX012) 中國(guó)博士后科學(xué)基金(2014M551934) 山東省博士后基金(201303068)
【分類(lèi)號(hào)】:TN86
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