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單移相控制下的DAB變換器磁偏抑制數字控制調制方法

文檔序號:39427213發布日(ri)期:2024-09-20 22:25閱讀:來源:國知局

技術特征:

1.一種單移(yi)相(xiang)控制(zhi)下的(de)(de)(de)(de)dab變(bian)換器(qi)磁(ci)偏抑制(zhi)數(shu)(shu)字控制(zhi)調制(zhi)方(fang)(fang)法(fa),其特征在(zai)于(yu),應用于(yu)包括使用數(shu)(shu)字控制(zhi)器(qi)作為(wei)核心控制(zhi)器(qi)的(de)(de)(de)(de)dab變(bian)換器(qi),所述(shu)dab變(bian)換器(qi)由兩(liang)個對稱h橋(qiao)(qiao)通過磁(ci)網絡(luo)連(lian)接在(zai)一起,其中(zhong)vin為(wei)輸(shu)(shu)(shu)入(ru)(ru)側(ce)直流(liu)電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)源(yuan),vo為(wei)輸(shu)(shu)(shu)出(chu)側(ce)直流(liu)電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)源(yuan),s1-s4開關(guan)(guan)管(guan)構成(cheng)原邊(bian)(bian)(bian)(bian)全(quan)橋(qiao)(qiao)h1,q1-q4開關(guan)(guan)管(guan)構成(cheng)副(fu)邊(bian)(bian)(bian)(bian)全(quan)橋(qiao)(qiao)h2,變(bian)壓(ya)(ya)器(qi)和輔助電(dian)(dian)(dian)(dian)(dian)感l構成(cheng)磁(ci)網絡(luo),變(bian)壓(ya)(ya)器(qi)變(bian)比(bi)為(wei)n:1,il和vl分別為(wei)等效電(dian)(dian)(dian)(dian)(dian)感的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)流(liu)和端電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya),vp是原邊(bian)(bian)(bian)(bian)全(quan)橋(qiao)(qiao)h1兩(liang)橋(qiao)(qiao)臂中(zhong)點電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya),vs是副(fu)邊(bian)(bian)(bian)(bian)全(quan)橋(qiao)(qiao)h2兩(liang)橋(qiao)(qiao)臂中(zhong)點電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya),采(cai)樣輸(shu)(shu)(shu)出(chu)電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)vo與參考(kao)電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)vref比(bi)較(jiao)后進(jin)入(ru)(ru)控制(zhi)回(hui)路,數(shu)(shu)字控制(zhi)器(qi)輸(shu)(shu)(shu)出(chu)原副(fu)邊(bian)(bian)(bian)(bian)開關(guan)(guan)管(guan)控制(zhi)信(xin)號,包括對輸(shu)(shu)(shu)出(chu)電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)的(de)(de)(de)(de)控制(zhi)和對驅動信(xin)號調制(zhi)方(fang)(fang)式的(de)(de)(de)(de)控制(zhi),在(zai)對輸(shu)(shu)(shu)出(chu)電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)的(de)(de)(de)(de)控制(zhi)過程(cheng)中(zhong),通過反饋(kui)回(hui)路控制(zhi),使其滿足(zu)參考(kao)電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)vref要(yao)求,即達到控制(zhi)輸(shu)(shu)(shu)出(chu)電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)等于(yu)參考(kao)電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya),根據(ju)當前采(cai)樣的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)值(zhi)和參考(kao)電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)參考(kao)值(zhi)進(jin)行(xing)比(bi)較(jiao),來(lai)生成(cheng)較(jiao)大或者較(jiao)小的(de)(de)(de)(de)移(yi)相(xiang)比(bi)d,再根據(ju)當前的(de)(de)(de)(de)輸(shu)(shu)(shu)入(ru)(ru)電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)vin,輸(shu)(shu)(shu)出(chu)電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)vo,即將(jiang)裝載的(de)(de)(de)(de)移(yi)相(xiang)比(bi)d,確定電(dian)(dian)(dian)(dian)(dian)感電(dian)(dian)(dian)(dian)(dian)流(liu)所處的(de)(de)(de)(de)狀態,并在(zai)數(shu)(shu)字控制(zhi)器(qi)中(zhong)選(xuan)擇相(xiang)應的(de)(de)(de)(de)調制(zhi)方(fang)(fang)式,來(lai)抑制(zhi)dab變(bian)換器(qi)電(dian)(dian)(dian)(dian)(dian)感直流(liu)偏置(zhi)電(dian)(dian)(dian)(dian)(dian)流(liu)。

2.如權(quan)利要(yao)求1所述(shu)的(de)單移相控(kong)制(zhi)下的(de)dab變換器磁偏抑(yi)制(zhi)數(shu)字控(kong)制(zhi)調制(zhi)方法,其特征在于,所述(shu)對輸出電壓(ya)的(de)控(kong)制(zhi)過程(cheng)具(ju)體(ti)包括以(yi)下步(bu)驟:

3.如權利要求2所述的單移相控制(zhi)(zhi)下(xia)的dab變(bian)換器(qi)磁偏抑制(zhi)(zhi)數(shu)字控制(zhi)(zhi)調制(zhi)(zhi)方法,其(qi)特(te)征在于(yu),在對驅動信號調制(zhi)(zhi)方式的控制(zhi)(zhi)中(zhong),包(bao)括以下(xia)步驟:

4.如權利(li)要求3所(suo)述的單移相控制下(xia)的dab變(bian)換(huan)器(qi)磁(ci)偏抑制數字(zi)控制調制方法,其特征(zheng)在于(yu),根據電(dian)(dian)感電(dian)(dian)流將(jiang)dab變(bian)換(huan)器(qi)當(dang)前所(suo)處狀態區分(fen)為兩種狀態:boosting?mode和buckingmode。

5.如(ru)權利要求3所述的(de)單(dan)移相控制(zhi)下的(de)dab變換器(qi)磁偏抑(yi)制(zhi)數字控制(zhi)調制(zhi)方法,其特(te)征在(zai)于(yu),當(dang)判別式結(jie)果為正(zheng)時,電(dian)感電(dian)流處在(zai)bucking?mode,當(dang)判別式結(jie)果為負時,電(dian)感電(dian)流處在(zai)boosting?mode。

6.如權利要(yao)求5所述(shu)的(de)單移相控制下的(de)dab變換器磁偏抑制數(shu)字控制調(diao)制方法,其(qi)特征在于(yu),在bucking?mode狀態下,一個開(kai)(kai)關(guan)周期內(nei)(nei)開(kai)(kai)關(guan)管的(de)開(kai)(kai)通順序為:0至(zhi)t1時(shi)間(jian)內(nei)(nei),s1,s4,q2,q3開(kai)(kai)通;t1至(zhi)t1+t2時(shi)間(jian)內(nei)(nei),s1,s4,q1,q4開(kai)(kai)通;t1+t2至(zhi)t+t1時(shi)間(jian)內(nei)(nei),s2,s3,q1,q4開(kai)(kai)通;t+t1至(zhi)t+t1+t2時(shi)間(jian)內(nei)(nei),s2,s3,q2,q3開(kai)(kai)通;t+t1+t2至(zhi)2t時(shi)間(jian)內(nei)(nei),s1,s4,q2,q3開(kai)(kai)通;其(qi)中,t1、t2、t3的(de)計算,可由(you)下式(shi)算得(de):

7.如權利要求5所述(shu)的單移相(xiang)控制下(xia)(xia)的dab變換器磁偏(pian)抑制數字控制調(diao)制方法(fa),其(qi)特(te)征在于,在boosting?mode狀態下(xia)(xia),一個(ge)開(kai)(kai)(kai)關(guan)周期內(nei)(nei)(nei)(nei)開(kai)(kai)(kai)關(guan)管(guan)的開(kai)(kai)(kai)通順序為:0至(zhi)t1時(shi)(shi)間內(nei)(nei)(nei)(nei),s1,s4,q1,q4開(kai)(kai)(kai)通;t1至(zhi)t1+t2時(shi)(shi)間內(nei)(nei)(nei)(nei),s2,s3,q1,q4開(kai)(kai)(kai)通;t1+t2至(zhi)t+t1時(shi)(shi)間內(nei)(nei)(nei)(nei),s2,s3,q2,q3開(kai)(kai)(kai)通;t+t1至(zhi)t+t1+t2時(shi)(shi)間內(nei)(nei)(nei)(nei),s1,s4,q2,q3開(kai)(kai)(kai)通;t+t1+t2至(zhi)2t時(shi)(shi)間內(nei)(nei)(nei)(nei),s1,s4,q1,q4開(kai)(kai)(kai)通;其(qi)中,t1、t2、t3的計(ji)算,可(ke)由下(xia)(xia)式算得:


技術總結
本發明公開了一種單移相控制下的DAB變換器磁偏抑制數字控制調制方法,應用于包括使用數字控制器作為核心控制器的DAB變換器,采樣輸出電壓Vo與參考電壓Vref比較后進入控制回路,數字控制器輸出原副邊開關管控制信號,包括對輸出電壓的控制和對驅動信號調制方式的控制,在對輸出電壓的控制過程中,通過反饋回路控制,使其滿足參考電壓Vref要求,即達到控制輸出電壓等于參考電壓,根據當前采樣的電壓值和參考電壓參考值進行比較,來生成較大或者較小的移相比D,再根據當前的輸入電壓Vin,輸出電壓Vo,即將裝載的移相比D,確定電感電流所處的狀態,并在數字控制器中選擇相應的調制方式,來抑制DAB變換器電感直流偏置電流。

技術研發人員:杭麗君,吳宇康,何遠彬,唐賽
受保護的技術使用者:杭州電子科技大學
技術研發日:
技術公布日:2024/9/19
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