Suzhou Electric Appliance Research Institute
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柔性直流雙向變換器及其控制策略研究

來源:電工電氣發(fā)布時(shí)間:2020-08-22 10:22 瀏覽次數(shù):723
柔性直流雙向變換器及其控制策略研究
 
張保1,鄒學(xué)毅1,嚴(yán)建海1,武遠(yuǎn)征2
(1 南京國(guó)臣直流配電科技有限公司,江蘇 南京 211100;2 遼寧工業(yè)大學(xué) 電子與信息工程學(xué)院,遼寧 錦州 121000)
 
    摘 要:研制了一種柔性直流配電儲(chǔ)能式雙向DC-DC變換器,在直流母線和儲(chǔ)能裝置間建立雙向功率通道,以解決配電網(wǎng)母線電壓波動(dòng)大的問題。設(shè)計(jì)兩相Buck-Boost交錯(cuò)并聯(lián)結(jié)構(gòu),采用新型數(shù)字式精確恒壓、恒流、恒功率控制策略,提高了變換器輸出側(cè)頻率和穩(wěn)態(tài)特性。試驗(yàn)表明,雙向變換器在不同工作模式下均能正常工作,并可實(shí)現(xiàn)工作模式靈活切換以及自動(dòng)恒壓、恒流功能,通過對(duì)交錯(cuò)并聯(lián)電感電流的均衡控制,保證了變換器高效大功率和低紋波的輸出,在實(shí)際配電系統(tǒng)實(shí)驗(yàn)中驗(yàn)證了該變換器可靠性。
    關(guān)鍵詞:雙向變換器;柔性;控制策略;交錯(cuò)并聯(lián)
    中圖分類號(hào):TM76     文獻(xiàn)標(biāo)識(shí)碼:A     文章編號(hào):1007-3175(2020)08-0012-05
 
Research on Flexible DC Bi-Directional Converter and Its Control Strategy
 
ZHANG Bao1, ZOU Xue-yi1, YAN Jian-hai1, WU Yuan-zheng2
(1 Nanjing Golden Cooperate DC Power Distribution Technology Co., Ltd, Nanjing 2111 00, China;
2 School of Electronics and Information Engineering, Liaoning University of Technology, Jinzhou 121000, China)
 
    Abstract: A bi-directional DC-DC converter is developed which establishes a high-power transmission channel between the DC bus and the energy storage device for flexible DC power distribution system to solve the problem that large voltage fluctuation of the DC bus. A twophase interleaved parallel structure Buck-Boost circuit is devised and a new digital precise control strategy of constant voltage, constant current and constant power is adopted to improve the frequency and steady-state characteristics of the output side of the converter. The test results show that the bi-directional converter proper function in different working modes,it can also realize flexible switching of working modes and automatic constant voltage and constant current functions. In addition, the current balance control of interleaved and parallel inductance is realized, which ensures the high efficiency, high power and low ripple output of the converter. Finally, the reliability of the converter has been verified in actual power distribution experiments.
    Key words: bi-directional converter; flexible; control strategy; interleaved parallel
 
參考文獻(xiàn)
[1] 吳鳴,劉海濤,陳文波,等. 中低壓直流配電系統(tǒng)的主動(dòng)保護(hù)研究[J]. 中國(guó)電機(jī)工程學(xué)報(bào),2016,36(4):891-899.
[2] 宋強(qiáng),趙彪,劉文華,等. 智能直流配電網(wǎng)研究綜述[J]. 中國(guó)電機(jī)工程學(xué)報(bào),2013,33(25):9-19.
[3] 趙彪,趙宇明,王一振,等. 基于柔性中壓直流配電的能源互聯(lián)網(wǎng)系統(tǒng)[J]. 中國(guó)電機(jī)工程學(xué)報(bào),2015,35(19):4843-4851.
[4] DU Yu, ZHOU Xiaohu, BAI Sanzhong, et al. Review of non-isolated bi-directional DCDC converters for plug-in hybrid electric vehicle charge station application at municipal parking decks[C]//IEEE Applied Power Electronics Conference and Exposition,2010:1145-1151.
[5] WU Yuanzheng, WANG Yajun, NING Wu.Design of bidirectional DC-DC converter based on single chip microcomputer[C]//2018 Chinese Control and Decision Conference,2018:6004-6009.
[6] 姚遠(yuǎn). 高輸入電壓大容量雙向功率變換器技術(shù)研究[D]. 南京:南京航空航天大學(xué),2009.
[7] 李雙剛,張方華,劉碩,等. 高效率雙向Buck /Boost變換器的研究[J]. 電力電子技術(shù),2013,47(4):73-75.
[8] 李楊,游步新,趙世華. 并聯(lián)變換器均流控制策略研究[J]. 電子技術(shù)應(yīng)用,2010,36(3):71-74.
[9] 楊海學(xué),張繼業(yè),賀曉. 均流式并聯(lián)雙向DC-DC控制器的設(shè)計(jì)[J]. 電子技術(shù)應(yīng)用,2015,41(4):136-138.
[10] 孫鶴旭,張厚升. 兩并聯(lián)雙向DC/DC變換器的滑模變結(jié)構(gòu)控制[J]. 電力電子技術(shù),2016,50(5):4-8.