本文關(guān)鍵詞： 網(wǎng)狀微電網(wǎng) 高頻穩(wěn)定性 閉環(huán)傳遞函數(shù)矩陣 MFD穩(wěn)定判據(jù)　出處：《電工技術(shù)學(xué)報(bào)》2017年23期 　論文類型：期刊論文

【摘要】：針對(duì)網(wǎng)狀孤島微電網(wǎng)中的高頻穩(wěn)定性問題進(jìn)行研究。首先對(duì)含有n臺(tái)逆變器的微電網(wǎng)系統(tǒng)進(jìn)行阻抗模型分析,獲得基于阻抗模型的閉環(huán)傳遞函數(shù)矩陣,進(jìn)而可以應(yīng)用多項(xiàng)式矩陣分式(MFD)穩(wěn)定判據(jù)進(jìn)行穩(wěn)定性分析。該方法分析過程簡(jiǎn)單,計(jì)算量小,同時(shí)基于阻抗物理模型建模,特性明確。然后進(jìn)行了仿真和實(shí)驗(yàn)分析驗(yàn)證,說明了線路參數(shù)和電壓電流環(huán)控制參數(shù)對(duì)于穩(wěn)定性的影響,同時(shí)證明了網(wǎng)狀微電網(wǎng)系統(tǒng)整體建模和MFD穩(wěn)定判據(jù)的正確性和有效性。
[Abstract]:Firstly, the impedance model of the microgrid system with n inverters is analyzed, and the closed-loop transfer function matrix based on the impedance model is obtained. Furthermore, the stability analysis can be carried out by using polynomial matrix fraction (MFDs) stability criterion, which has the advantages of simple analysis process, low computational cost and modeling based on impedance physical model. The characteristics are clear. Then the simulation and experimental analysis are carried out to illustrate the influence of circuit parameters and voltage and current loop control parameters on the stability. The correctness and validity of the global modeling and MFD stability criterion of the grid microgrid system are also proved.
【作者單位】： 電力電子節(jié)能與傳動(dòng)控制河北省重點(diǎn)實(shí)驗(yàn)室(燕山大學(xué));
【基金】：國(guó)家重點(diǎn)研究發(fā)展計(jì)劃(2016YFB0900300) 河北省自然科學(xué)基金(E2015203407,13211907D-2)資助項(xiàng)目
【分類號(hào)】：TM712
【正文快照】： 0引言近年來(lái),隨著環(huán)境問題的惡化和能源危機(jī)的日益加劇,分布式電源作為一種新能源受到了廣泛關(guān)注[1-5]。然而,微電網(wǎng)運(yùn)行過程中存在的諧波問題對(duì)于系統(tǒng)的安全穩(wěn)定運(yùn)行影響巨大。諧波按照頻率分為低頻諧波和高頻諧波,其中低頻諧波主要由響應(yīng)速度相對(duì)較慢的鎖相環(huán)[6]和下垂功率，

本文編號(hào)：1444258