本文選題：直流微電網(wǎng) + 分布式儲能系統(tǒng)��； 參考：《電力電子技術(shù)》2016年11期

【摘要】：為實(shí)現(xiàn)直流微電網(wǎng)內(nèi)電流負(fù)荷在分布式儲能系統(tǒng)(DESS)間的合理分配,克服傳統(tǒng)下垂控制策略中電流分配精度低和母線電壓跌落問題,提出一種適用于DESS的改進(jìn)荷電狀態(tài)(SOC)下垂控制策略。利用該策略可實(shí)現(xiàn)電流負(fù)荷在儲能單元(ESU)的合理分配,避免ESU的過充過放;同時克服了線路阻抗對電流負(fù)荷分配的影響,實(shí)現(xiàn)了電流負(fù)荷的精確分配,且維持直流母線電壓值恒定,從而保證了直流微電網(wǎng)的穩(wěn)定性。最后對所提控制方法的有效性分別進(jìn)行了仿真和實(shí)驗驗證。
[Abstract]:In order to realize the reasonable distribution of current load among distributed energy storage system (DESS) in DC microgrid, the problems of low precision of current distribution and voltage drop of busbar in traditional droop control strategy are overcome. An improved droop control strategy for DESS is proposed. This strategy can realize the reasonable distribution of current load in energy storage unit (ESUU), avoid overcharging and overdischarge of ESU, overcome the influence of line impedance on current load distribution, and realize the accurate distribution of current load. The DC bus voltage is kept constant, which ensures the stability of DC microgrid. Finally, the effectiveness of the proposed control method is verified by simulation and experiment.
【作者單位】： 燕山大學(xué)電氣工程學(xué)院;
【基金】：國家自然科學(xué)基金(51477148)~~
【分類號】：TM732;TM46
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本文編號：1937168