本文選題：柴油發(fā)電機(jī)組 + 獨(dú)立微網(wǎng)　； 參考：《電工技術(shù)學(xué)報(bào)》2017年23期

【摘要】：針對(duì)由可再生能源發(fā)電系統(tǒng)、常規(guī)柴油發(fā)電機(jī)組(DGS)和蓄電池儲(chǔ)能系統(tǒng)組成的獨(dú)立微網(wǎng),提出一種適合微網(wǎng)在孤島模式下穩(wěn)定運(yùn)行的虛擬同步發(fā)電機(jī)(VSG)控制策略。首先,建立DGS在同步旋轉(zhuǎn)坐標(biāo)系下的數(shù)學(xué)模型,并分析其輸出電壓和轉(zhuǎn)速的階躍響應(yīng)特性;其次,在充分考慮DGS和VSG不同控制特性的基礎(chǔ)上,提出一種適應(yīng)獨(dú)立微網(wǎng)分層協(xié)調(diào)控制的改進(jìn)型VSG策略;然后,在基本VSG控制器中增加虛擬阻抗環(huán)節(jié),靈活實(shí)現(xiàn)對(duì)微網(wǎng)諧波的抑制;最后,建立一套包含2臺(tái)100 k V·A VSG及1臺(tái)440 k W DGS并聯(lián)的獨(dú)立微網(wǎng)實(shí)驗(yàn)平臺(tái),實(shí)驗(yàn)結(jié)果驗(yàn)證了所述控制策略的正確性與有效性。
[Abstract]:Aiming at the independent microgrid composed of renewable energy generation system, conventional diesel generator unit DGSand battery energy storage system, a virtual synchronous generator (VSGG) control strategy suitable for the stable operation of microgrid in isolated island mode is proposed. Firstly, the mathematical model of DGS in synchronous rotating coordinate system is established, and the step response characteristics of its output voltage and rotational speed are analyzed. Secondly, on the basis of fully considering the different control characteristics of DGS and VSG, This paper proposes an improved VSG strategy for independent microgrid hierarchical coordination control. Then, virtual impedance is added to the basic VSG controller, and the harmonic suppression of microgrid is realized flexibly. Finally, A set of independent microgrid experiment platform including 2 parallel k V A VSG and 1 440 k W DGS parallel is established. The experimental results show that the proposed control strategy is correct and effective.
【作者單位】： 合肥工業(yè)大學(xué)電氣與自動(dòng)化工程學(xué)院;陽(yáng)光電源股份有限公司;
【基金】：國(guó)家高技術(shù)研究發(fā)展計(jì)劃(863計(jì)劃)(2015AA050607) 國(guó)家重點(diǎn)研發(fā)計(jì)劃(2016YFB0900300)資助項(xiàng)目
【分類(lèi)號(hào)】：TM31
，

本文編號(hào)：1970459