【摘要】：為了解決當(dāng)前電動(dòng)汽車充電模塊效率低、功率小的缺點(diǎn),提出了一種基于混合控制式交錯(cuò)并聯(lián)LLC諧振技術(shù)的非車載式電動(dòng)汽車充電模塊整體設(shè)計(jì)方案。所述方案輸入側(cè)為VIENNA電路,輸出側(cè)為交錯(cuò)并聯(lián)LLC諧振DC/DC變換器。采用交錯(cuò)并聯(lián)技術(shù)減小輸出電流紋波,提高充電模塊輸出功率的同時(shí),采用移相變頻混合控制策略,使得諧振變換器工作在較窄的頻率范圍之內(nèi),因此降低了磁性元器件設(shè)計(jì)難度,提高了充電模塊的轉(zhuǎn)換效率以及功率密度。給出了充電模塊整體電路拓?fù)湓O(shè)計(jì)、各模塊工作原理以及控制策略,研制了20kW原理樣機(jī),與純變頻式交錯(cuò)并聯(lián)LLC諧振變換器充電模塊的對(duì)比分析驗(yàn)證了所述方法的可行性。
[Abstract]:In order to solve the problems of low efficiency and low power of current charging module of electric vehicle, a new design scheme of charging module for non-vehicle-borne electric vehicle based on hybrid controlled staggered parallel LLC resonance technology is proposed. The input side of the scheme is a VIENNA circuit and the output side is a staggered parallel LLC resonant DC / DC converter. Using staggered parallel technology to reduce the output current ripple, improve the output power of charging module, and adopt the phase-shift frequency conversion hybrid control strategy to make the resonant converter work in a narrow frequency range. Therefore, the design difficulty of magnetic components is reduced, and the conversion efficiency and power density of charging module are improved. The whole circuit topology design, working principle and control strategy of the charging module are given. A 20kW prototype is developed. The feasibility of the proposed method is verified by comparing with the charging module of the pure variable frequency interleaving parallel LLC resonant converter.
【作者單位】： 南瑞集團(tuán)公司(國網(wǎng)電力科學(xué)研究院);
【基金】：江蘇省自然科學(xué)基金資助項(xiàng)目(BK20140118) 國家電網(wǎng)公司科技項(xiàng)目(SGTYHT/14-JS-188)~~
【分類號(hào)】：TM46

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