本發明涉及一種變換(huan)器拓撲，具體涉及一種雙相交(jiao)錯交(jiao)流鏈變換(huan)器拓撲及其(qi)定頻準峰值電(dian)流控制方法。

背景技術：

1、目前(qian)(qian)高(gao)性能(neng)計(ji)算板卡最(zui)廣泛使用(yong)的(de)(de)(de)(de)是(shi)兩級(ji)式(shi)供(gong)電(dian)(dian)拓(tuo)撲(pu)，前(qian)(qian)級(ji)通(tong)常(chang)采用(yong)固定比率變(bian)換(huan)器(qi)(qi)(qi)實現(xian)預降(jiang)壓，得到5～12v中(zhong)間母(mu)線(xian)(xian)(xian)，例如llc或混合開關(guan)電(dian)(dian)容拓(tuo)撲(pu)。后級(ji)采用(yong)多(duo)(duo)相(xiang)交錯buck變(bian)換(huan)器(qi)(qi)(qi)實現(xian)多(duo)(duo)相(xiang)并聯(lian)，輸出較大(da)電(dian)(dian)流(liu)。然而隨著處理器(qi)(qi)(qi)的(de)(de)(de)(de)功(gong)耗不斷提(ti)(ti)升和供(gong)電(dian)(dian)電(dian)(dian)壓的(de)(de)(de)(de)不斷降(jiang)低，其所需供(gong)電(dian)(dian)電(dian)(dian)流(liu)不斷上漲(zhang)，進而導致現(xian)有兩級(ji)式(shi)拓(tuo)撲(pu)中(zhong)5～12v中(zhong)間母(mu)線(xian)(xian)(xian)上的(de)(de)(de)(de)傳(chuan)輸損耗顯著增加。同時多(duo)(duo)相(xiang)buck變(bian)換(huan)器(qi)(qi)(qi)在大(da)電(dian)(dian)流(liu)負(fu)載下無(wu)法實現(xian)開關(guan)器(qi)(qi)(qi)件的(de)(de)(de)(de)軟開關(guan)，其開關(guan)損耗會(hui)隨中(zhong)間母(mu)線(xian)(xian)(xian)電(dian)(dian)壓的(de)(de)(de)(de)提(ti)(ti)高(gao)和負(fu)載電(dian)(dian)流(liu)的(de)(de)(de)(de)增大(da)而增大(da)，因此(ci)(ci)多(duo)(duo)相(xiang)buck變(bian)換(huan)器(qi)(qi)(qi)無(wu)法適應更高(gao)的(de)(de)(de)(de)中(zhong)間母(mu)線(xian)(xian)(xian)電(dian)(dian)壓。此(ci)(ci)外，buck變(bian)換(huan)器(qi)(qi)(qi)的(de)(de)(de)(de)多(duo)(duo)相(xiang)耦合電(dian)(dian)感(gan)的(de)(de)(de)(de)磁集成(cheng)設計(ji)困難(nan)，限制(zhi)了(le)負(fu)載點(dian)電(dian)(dian)源功(gong)率密度(du)的(de)(de)(de)(de)進一步提(ti)(ti)升。

2、相較(jiao)于buck變(bian)(bian)換(huan)(huan)器(qi)(qi)(qi)，將llc變(bian)(bian)換(huan)(huan)器(qi)(qi)(qi)作(zuo)為(wei)(wei)負(fu)載點電(dian)源具有(you)明(ming)顯(xian)的(de)(de)(de)(de)(de)效率和功率密度(du)優勢(shi)，這得益于llc變(bian)(bian)換(huan)(huan)器(qi)(qi)(qi)以諧振的(de)(de)(de)(de)(de)方(fang)式(shi)(shi)向變(bian)(bian)壓器(qi)(qi)(qi)傳遞正(zheng)弦(xian)交(jiao)變(bian)(bian)電(dian)流，不(bu)(bu)但可以實現原、副邊開(kai)(kai)關器(qi)(qi)(qi)件(jian)(jian)的(de)(de)(de)(de)(de)軟(ruan)開(kai)(kai)關，還由于其(qi)變(bian)(bian)壓器(qi)(qi)(qi)磁(ci)(ci)芯工作(zuo)在(zai)(zai)(zai)交(jiao)變(bian)(bian)磁(ci)(ci)化狀態而(er)(er)非偏置磁(ci)(ci)化狀態，降低了磁(ci)(ci)性(xing)(xing)元件(jian)(jian)的(de)(de)(de)(de)(de)磁(ci)(ci)集成(cheng)難度(du)。此外，采用(yong)buck-boost變(bian)(bian)換(huan)(huan)器(qi)(qi)(qi)，作(zuo)為(wei)(wei)llc變(bian)(bian)換(huan)(huan)器(qi)(qi)(qi)的(de)(de)(de)(de)(de)前級可以為(wei)(wei)其(qi)提供更(geng)高的(de)(de)(de)(de)(de)中(zhong)間(jian)母線電(dian)壓，以實現更(geng)小的(de)(de)(de)(de)(de)pdn損耗。然(ran)(ran)而(er)(er)，buck-boost變(bian)(bian)換(huan)(huan)器(qi)(qi)(qi)控(kong)制(zhi)(zhi)自由度(du)較(jiao)多(duo)，現有(you)控(kong)制(zhi)(zhi)策略存(cun)在(zai)(zai)(zai)著明(ming)顯(xian)的(de)(de)(de)(de)(de)缺(que)陷，主要可歸納為(wei)(wei)以下(xia)三(san)個方(fang)面：(1)需(xu)要通(tong)過復雜的(de)(de)(de)(de)(de)運算(suan)式(shi)(shi)計(ji)(ji)算(suan)各開(kai)(kai)關器(qi)(qi)(qi)件(jian)(jian)調(diao)制(zhi)(zhi)時間(jian)，對微控(kong)制(zhi)(zhi)器(qi)(qi)(qi)算(suan)力(li)有(you)較(jiao)高的(de)(de)(de)(de)(de)要求，同(tong)(tong)時較(jiao)大的(de)(de)(de)(de)(de)運算(suan)延(yan)遲不(bu)(bu)利于為(wei)(wei)處(chu)理器(qi)(qi)(qi)等(deng)高動態負(fu)載供電(dian)。(2)需(xu)要在(zai)(zai)(zai)不(bu)(bu)同(tong)(tong)工況下(xia)改變(bian)(bian)控(kong)制(zhi)(zhi)對象和控(kong)制(zhi)(zhi)參量，進行算(suan)法(fa)切(qie)換(huan)(huan)以實現變(bian)(bian)換(huan)(huan)器(qi)(qi)(qi)效率優化，然(ran)(ran)而(er)(er)在(zai)(zai)(zai)頻繁的(de)(de)(de)(de)(de)負(fu)載跳變(bian)(bian)下(xia)這種控(kong)制(zhi)(zhi)模式(shi)(shi)存(cun)在(zai)(zai)(zai)算(suan)法(fa)邊界震蕩的(de)(de)(de)(de)(de)問題。(3)為(wei)(wei)降低微控(kong)制(zhi)(zhi)器(qi)(qi)(qi)運算(suan)負(fu)擔，較(jiao)多(duo)算(suan)法(fa)采用(yong)查表(biao)的(de)(de)(de)(de)(de)實現方(fang)式(shi)(shi)，然(ran)(ran)而(er)(er)該方(fang)式(shi)(shi)為(wei)(wei)確保(bao)控(kong)制(zhi)(zhi)精(jing)度(du)，需(xu)要非常精(jing)細(xi)的(de)(de)(de)(de)(de)表(biao)格，占用(yong)大量的(de)(de)(de)(de)(de)存(cun)儲資(zi)源，同(tong)(tong)時在(zai)(zai)(zai)查詢龐大的(de)(de)(de)(de)(de)表(biao)格數據過程(cheng)中(zhong)不(bu)(bu)可避免(mian)的(de)(de)(de)(de)(de)為(wei)(wei)控(kong)制(zhi)(zhi)系(xi)統帶來較(jiao)高延(yan)遲。綜(zong)上(shang)，現有(you)buck-boost控(kong)制(zhi)(zhi)策略不(bu)(bu)適用(yong)于高性(xing)(xing)能(neng)計(ji)(ji)算(suan)供電(dian)的(de)(de)(de)(de)(de)使用(yong)場(chang)景(jing)。

技術實現思路

1、針對上(shang)述問題，本(ben)發(fa)明(ming)提(ti)供(gong)(gong)了一種(zhong)雙相交(jiao)錯(cuo)交(jiao)流(liu)鏈變(bian)換(huan)器(qi)拓撲及其定頻準(zhun)峰值電(dian)(dian)流(liu)控(kong)制方法(fa)。本(ben)發(fa)明(ming)提(ti)出的(de)(de)變(bian)換(huan)器(qi)是(shi)一種(zhong)將buck-boost結(jie)構(gou)(gou)與串(chuan)聯(lian)(lian)諧振結(jie)構(gou)(gou)相結(jie)合的(de)(de)單級(ji)式變(bian)換(huan)器(qi)，通過buck-boost結(jie)構(gou)(gou)后橋臂(bei)形(xing)成高(gao)壓交(jiao)流(liu)傳輸(shu)鏈，并提(ti)出了一種(zhong)定頻準(zhun)峰值控(kong)制策略，旨在(zai)結(jie)合buck-boost結(jie)構(gou)(gou)靈(ling)活的(de)(de)調壓能力(li)和串(chuan)聯(lian)(lian)諧振結(jie)構(gou)(gou)高(gao)效、高(gao)密(mi)的(de)(de)特(te)性，使其可以在(zai)vba供(gong)(gong)電(dian)(dian)架構(gou)(gou)下為cpu、gpu等(deng)低壓大電(dian)(dian)流(liu)負載(zai)供(gong)(gong)電(dian)(dian)，并通過實時控(kong)制電(dian)(dian)感電(dian)(dian)流(liu)工(gong)作波形(xing)，達到快速調節輸(shu)出電(dian)(dian)壓vo的(de)(de)目(mu)的(de)(de)。

2、本發明的目的是通過以(yi)下技術方案實現的：

3、一種雙相交錯交流鏈變(bian)換器拓撲(pu)，包(bao)括兩相交錯buck-boost結構、串聯諧振槽和支撐電容(rong)cv，其中：

4、所述兩相交(jiao)錯(cuo)buck-boost結構由開關(guan)器件q1～q8、電感l1～l2構成，

5、所述(shu)串聯諧振槽由(you)諧振電(dian)感lr、諧振電(dian)容cr以(yi)及變(bian)壓器構成；

6、所述變(bian)換器的原邊由開關器件q1和(he)(he)(he)q2、q3和(he)(he)(he)q4、q5和(he)(he)(he)q6、q7和(he)(he)(he)q8分(fen)別(bie)(bie)組(zu)成4個橋(qiao)(qiao)臂(bei)(bei)(bei)，電感l1的兩(liang)(liang)端分(fen)別(bie)(bie)連接至(zhi)q1和(he)(he)(he)q2組(zu)成的橋(qiao)(qiao)臂(bei)(bei)(bei)中(zhong)點、q3和(he)(he)(he)q4組(zu)成的橋(qiao)(qiao)臂(bei)(bei)(bei)中(zhong)點，電感l2的兩(liang)(liang)端分(fen)別(bie)(bie)連接至(zhi)q5和(he)(he)(he)q6組(zu)成的橋(qiao)(qiao)臂(bei)(bei)(bei)中(zhong)點、q7和(he)(he)(he)q8組(zu)成的橋(qiao)(qiao)臂(bei)(bei)(bei)中(zhong)點，上述器件共(gong)同組(zu)成兩(liang)(liang)相(xiang)交錯buck-boost結構；由開關器件q3和(he)(he)(he)q4、q7和(he)(he)(he)q8組(zu)成的兩(liang)(liang)后(hou)橋(qiao)(qiao)臂(bei)(bei)(bei)共(gong)同組(zu)成全橋(qiao)(qiao)逆變(bian)結構，在兩(liang)(liang)后(hou)橋(qiao)(qiao)臂(bei)(bei)(bei)的中(zhong)點a、b處(chu)連接串(chuan)聯諧振(zhen)槽；

7、所述(shu)串聯諧(xie)振槽具有多(duo)個副邊繞組(zu)及其(qi)整流電路(lu)構成多(duo)相并聯輸(shu)出；

8、所述支(zhi)撐電容cv并(bing)聯在兩(liang)(liang)相交錯buck-boost結構的(de)兩(liang)(liang)后橋臂(bei)兩(liang)(liang)端，為串聯諧振槽(cao)提供支(zhi)撐電壓(ya)；

9、所述兩相交錯buck-boost結(jie)構(gou)可作為vba供電(dian)架構(gou)中的(de)電(dian)壓調節(jie)兼逆變環(huan)節(jie)，串聯(lian)諧振(zhen)槽作為vba供電(dian)架構(gou)中的(de)諧振(zhen)降壓環(huan)節(jie)，兩相交錯buck-boost結(jie)構(gou)中由開(kai)關器件q3和q4、q7和q8組成的(de)兩后橋臂中點a、b處構(gou)成高壓交流(liu)傳輸鏈。

10、一種上述雙相交(jiao)錯交(jiao)流(liu)鏈(lian)變(bian)換器拓撲(pu)的(de)(de)定(ding)頻準峰值電(dian)流(liu)控(kong)制方(fang)法，通過實時控(kong)制電(dian)感l1、l2的(de)(de)工作電(dian)流(liu)il1、il2的(de)(de)波形，達到快速調節輸(shu)出電(dian)壓vo的(de)(de)目的(de)(de)，其中：

11、所(suo)述電(dian)感(gan)l1、l2的(de)工作(zuo)電(dian)流il1、il2的(de)波形(xing)(xing)被調(diao)制為(wei)四邊形(xing)(xing)波，并且(qie)兩(liang)者(zhe)相位相差180°，波形(xing)(xing)中包(bao)含(han)四個拐點、四個階段；

12、所述四個(ge)拐點(dian)分別(bie)為a、b、c、d，當輸(shu)(shu)(shu)入電(dian)(dian)(dian)(dian)壓(ya)低(di)于(yu)(yu)支撐電(dian)(dian)(dian)(dian)容電(dian)(dian)(dian)(dian)壓(ya)時(shi)，電(dian)(dian)(dian)(dian)感(gan)l1、l2的(de)電(dian)(dian)(dian)(dian)流(liu)波形特征具(ju)有(you)a點(dian)高于(yu)(yu)b點(dian)；當輸(shu)(shu)(shu)入電(dian)(dian)(dian)(dian)壓(ya)高于(yu)(yu)支撐電(dian)(dian)(dian)(dian)容電(dian)(dian)(dian)(dian)壓(ya)時(shi)，電(dian)(dian)(dian)(dian)感(gan)l1、l2電(dian)(dian)(dian)(dian)流(liu)波形特征具(ju)有(you)a點(dian)低(di)于(yu)(yu)b點(dian)；當輸(shu)(shu)(shu)入電(dian)(dian)(dian)(dian)壓(ya)等(deng)(deng)于(yu)(yu)支撐電(dian)(dian)(dian)(dian)容電(dian)(dian)(dian)(dian)壓(ya)時(shi)，電(dian)(dian)(dian)(dian)感(gan)l1、l2電(dian)(dian)(dian)(dian)流(liu)波形特征具(ju)有(you)a點(dian)等(deng)(deng)于(yu)(yu)b點(dian)；

13、所述(shu)四(si)個階段(duan)(duan)(duan)(duan)分別(bie)為(wei)(wei)輸(shu)入階段(duan)(duan)(duan)(duan)t1、輸(shu)入-輸(shu)出階段(duan)(duan)(duan)(duan)t2、下降(jiang)階段(duan)(duan)(duan)(duan)t3和鉗位階段(duan)(duan)(duan)(duan)t4，電流波形da段(duan)(duan)(duan)(duan)為(wei)(wei)輸(shu)入階段(duan)(duan)(duan)(duan)t1，ab段(duan)(duan)(duan)(duan)為(wei)(wei)輸(shu)入-輸(shu)出階段(duan)(duan)(duan)(duan)t2，bc段(duan)(duan)(duan)(duan)為(wei)(wei)下降(jiang)階段(duan)(duan)(duan)(duan)t3，cd段(duan)(duan)(duan)(duan)為(wei)(wei)鉗位階段(duan)(duan)(duan)(duan)t4；

14、所述電(dian)(dian)(dian)(dian)(dian)感(gan)(gan)l1的(de)(de)(de)(de)工作(zuo)(zuo)電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)il1的(de)(de)(de)(de)波形為(wei)：在輸入階(jie)(jie)(jie)段(duan)t1時間(jian)內(nei)(nei)(nei)，開(kai)(kai)關(guan)(guan)器(qi)(qi)(qi)(qi)件(jian)(jian)(jian)q1和(he)(he)q4導(dao)(dao)通，電(dian)(dian)(dian)(dian)(dian)感(gan)(gan)l1并(bing)聯至輸入側電(dian)(dian)(dian)(dian)(dian)壓(ya)源vin，開(kai)(kai)始儲(chu)能(neng)(neng)，待工作(zuo)(zuo)電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)上升至a點(dian)(dian)(dian)后(hou)(hou)開(kai)(kai)關(guan)(guan)器(qi)(qi)(qi)(qi)件(jian)(jian)(jian)q4關(guan)(guan)斷，電(dian)(dian)(dian)(dian)(dian)感(gan)(gan)l1中(zhong)a點(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)ia和(he)(he)諧(xie)振槽勵磁電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)im共(gong)同給(gei)(gei)開(kai)(kai)關(guan)(guan)器(qi)(qi)(qi)(qi)件(jian)(jian)(jian)q3和(he)(he)q4中(zhong)的(de)(de)(de)(de)寄生電(dian)(dian)(dian)(dian)(dian)容(rong)進行(xing)充、放(fang)電(dian)(dian)(dian)(dian)(dian)，為(wei)開(kai)(kai)關(guan)(guan)器(qi)(qi)(qi)(qi)件(jian)(jian)(jian)q3的(de)(de)(de)(de)零電(dian)(dian)(dian)(dian)(dian)壓(ya)開(kai)(kai)通做準備；而后(hou)(hou)電(dian)(dian)(dian)(dian)(dian)路進入到(dao)輸入-輸出階(jie)(jie)(jie)段(duan)t2，該時間(jian)段(duan)內(nei)(nei)(nei)開(kai)(kai)關(guan)(guan)器(qi)(qi)(qi)(qi)件(jian)(jian)(jian)q1和(he)(he)q3導(dao)(dao)通，電(dian)(dian)(dian)(dian)(dian)感(gan)(gan)l1與輸入側電(dian)(dian)(dian)(dian)(dian)源vin串聯向輸出側傳遞能(neng)(neng)量，vin>vc狀(zhuang)態(tai)下工作(zuo)(zuo)電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)斜率為(wei)正，vin<vc狀(zhuang)態(tai)下工作(zuo)(zuo)電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)斜率為(wei)負(fu)，vc為(wei)支撐電(dian)(dian)(dian)(dian)(dian)容(rong)電(dian)(dian)(dian)(dian)(dian)壓(ya)，待工作(zuo)(zuo)電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)到(dao)達b點(dian)(dian)(dian)時q1關(guan)(guan)斷，電(dian)(dian)(dian)(dian)(dian)感(gan)(gan)l1中(zhong)b點(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)ib給(gei)(gei)開(kai)(kai)關(guan)(guan)器(qi)(qi)(qi)(qi)件(jian)(jian)(jian)q1和(he)(he)q2的(de)(de)(de)(de)寄生電(dian)(dian)(dian)(dian)(dian)容(rong)分別進行(xing)充、放(fang)電(dian)(dian)(dian)(dian)(dian)，為(wei)開(kai)(kai)關(guan)(guan)器(qi)(qi)(qi)(qi)件(jian)(jian)(jian)q2的(de)(de)(de)(de)零電(dian)(dian)(dian)(dian)(dian)壓(ya)開(kai)(kai)通做準備；繼(ji)而電(dian)(dian)(dian)(dian)(dian)路進入下降階(jie)(jie)(jie)段(duan)t3，該階(jie)(jie)(jie)段(duan)內(nei)(nei)(nei)開(kai)(kai)關(guan)(guan)器(qi)(qi)(qi)(qi)件(jian)(jian)(jian)q2和(he)(he)q3導(dao)(dao)通，電(dian)(dian)(dian)(dian)(dian)感(gan)(gan)l1與輸出端vo并(bing)聯，開(kai)(kai)始磁復(fu)位，為(wei)了能(neng)(neng)夠實(shi)現開(kai)(kai)關(guan)(guan)器(qi)(qi)(qi)(qi)件(jian)(jian)(jian)q1的(de)(de)(de)(de)零電(dian)(dian)(dian)(dian)(dian)壓(ya)開(kai)(kai)通，此階(jie)(jie)(jie)段(duan)內(nei)(nei)(nei)工作(zuo)(zuo)電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)需要下降至某一(yi)負(fu)值(zhi)c點(dian)(dian)(dian)，隨后(hou)(hou)開(kai)(kai)關(guan)(guan)器(qi)(qi)(qi)(qi)件(jian)(jian)(jian)q3關(guan)(guan)斷，電(dian)(dian)(dian)(dian)(dian)感(gan)(gan)l1中(zhong)c點(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)ic和(he)(he)諧(xie)振槽勵磁電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)im共(gong)同給(gei)(gei)開(kai)(kai)關(guan)(guan)器(qi)(qi)(qi)(qi)件(jian)(jian)(jian)q3和(he)(he)q4的(de)(de)(de)(de)寄生電(dian)(dian)(dian)(dian)(dian)容(rong)充、放(fang)電(dian)(dian)(dian)(dian)(dian)，為(wei)開(kai)(kai)關(guan)(guan)器(qi)(qi)(qi)(qi)件(jian)(jian)(jian)q4的(de)(de)(de)(de)零電(dian)(dian)(dian)(dian)(dian)壓(ya)開(kai)(kai)通做準備；鉗位階(jie)(jie)(jie)段(duan)t4時間(jian)內(nei)(nei)(nei)，開(kai)(kai)關(guan)(guan)器(qi)(qi)(qi)(qi)件(jian)(jian)(jian)q2和(he)(he)q4導(dao)(dao)通，電(dian)(dian)(dian)(dian)(dian)感(gan)(gan)不(bu)與外界產生能(neng)(neng)量交(jiao)換，其內(nei)(nei)(nei)的(de)(de)(de)(de)反(fan)向環(huan)流(liu)(liu)(liu)為(wei)下一(yi)周期t1階(jie)(jie)(jie)段(duan)開(kai)(kai)關(guan)(guan)器(qi)(qi)(qi)(qi)件(jian)(jian)(jian)q1導(dao)(dao)通前寄生電(dian)(dian)(dian)(dian)(dian)容(rong)進行(xing)放(fang)電(dian)(dian)(dian)(dian)(dian)，從而實(shi)現開(kai)(kai)關(guan)(guan)器(qi)(qi)(qi)(qi)件(jian)(jian)(jian)q1的(de)(de)(de)(de)零電(dian)(dian)(dian)(dian)(dian)壓(ya)導(dao)(dao)通；

15、所述電(dian)(dian)(dian)(dian)(dian)(dian)(dian)感(gan)l2的(de)工(gong)(gong)作(zuo)(zuo)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)il的(de)波形(xing)為(wei)：電(dian)(dian)(dian)(dian)(dian)(dian)(dian)感(gan)l2每個階(jie)(jie)段(duan)t1～t4開(kai)(kai)(kai)(kai)(kai)(kai)始(shi)相位(wei)滯后(hou)(hou)于電(dian)(dian)(dian)(dian)(dian)(dian)(dian)感(gan)l1180°，在輸(shu)(shu)入(ru)階(jie)(jie)段(duan)t1時間內(nei)，開(kai)(kai)(kai)(kai)(kai)(kai)關(guan)器(qi)(qi)件(jian)(jian)(jian)(jian)q5和(he)q8導(dao)通，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)感(gan)l2并(bing)聯至(zhi)輸(shu)(shu)入(ru)側電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)源vin，開(kai)(kai)(kai)(kai)(kai)(kai)始(shi)儲能，待(dai)工(gong)(gong)作(zuo)(zuo)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)上升至(zhi)a點(dian)后(hou)(hou)開(kai)(kai)(kai)(kai)(kai)(kai)關(guan)器(qi)(qi)件(jian)(jian)(jian)(jian)q8關(guan)斷(duan)，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)感(gan)l2中a點(dian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)ia和(he)諧(xie)振(zhen)槽勵磁(ci)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)im共同(tong)給開(kai)(kai)(kai)(kai)(kai)(kai)關(guan)器(qi)(qi)件(jian)(jian)(jian)(jian)q7和(he)q8中的(de)寄(ji)生(sheng)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容進(jin)(jin)(jin)行(xing)(xing)充、放(fang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)，為(wei)開(kai)(kai)(kai)(kai)(kai)(kai)關(guan)器(qi)(qi)件(jian)(jian)(jian)(jian)q7的(de)零(ling)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)開(kai)(kai)(kai)(kai)(kai)(kai)通做準(zhun)備；而后(hou)(hou)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)進(jin)(jin)(jin)入(ru)到輸(shu)(shu)入(ru)-輸(shu)(shu)出(chu)階(jie)(jie)段(duan)t2，該(gai)時間段(duan)內(nei)開(kai)(kai)(kai)(kai)(kai)(kai)關(guan)器(qi)(qi)件(jian)(jian)(jian)(jian)q5和(he)q7導(dao)通，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)感(gan)l2與輸(shu)(shu)入(ru)側電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源vin串(chuan)聯向(xiang)輸(shu)(shu)出(chu)側傳遞能量，vin>vc狀態(tai)下工(gong)(gong)作(zuo)(zuo)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)斜率(lv)(lv)為(wei)正(zheng)，vin<vc狀態(tai)下工(gong)(gong)作(zuo)(zuo)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)斜率(lv)(lv)為(wei)負，vc為(wei)支撐電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)，待(dai)工(gong)(gong)作(zuo)(zuo)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)到達b點(dian)時q5關(guan)斷(duan)，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)感(gan)l2中b點(dian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)ib給開(kai)(kai)(kai)(kai)(kai)(kai)關(guan)器(qi)(qi)件(jian)(jian)(jian)(jian)q5和(he)q6的(de)寄(ji)生(sheng)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容分別進(jin)(jin)(jin)行(xing)(xing)充、放(fang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)，為(wei)開(kai)(kai)(kai)(kai)(kai)(kai)關(guan)器(qi)(qi)件(jian)(jian)(jian)(jian)q6的(de)零(ling)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)開(kai)(kai)(kai)(kai)(kai)(kai)通做準(zhun)備；繼而電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)進(jin)(jin)(jin)入(ru)下降(jiang)階(jie)(jie)段(duan)t3，該(gai)階(jie)(jie)段(duan)內(nei)開(kai)(kai)(kai)(kai)(kai)(kai)關(guan)器(qi)(qi)件(jian)(jian)(jian)(jian)q6和(he)q7導(dao)通，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)感(gan)l2與輸(shu)(shu)出(chu)端vo并(bing)聯，開(kai)(kai)(kai)(kai)(kai)(kai)始(shi)磁(ci)復位(wei)，為(wei)了能夠實(shi)現開(kai)(kai)(kai)(kai)(kai)(kai)關(guan)器(qi)(qi)件(jian)(jian)(jian)(jian)q5的(de)零(ling)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)開(kai)(kai)(kai)(kai)(kai)(kai)通，此階(jie)(jie)段(duan)內(nei)工(gong)(gong)作(zuo)(zuo)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)需要下降(jiang)至(zhi)某一負值c點(dian)，隨后(hou)(hou)開(kai)(kai)(kai)(kai)(kai)(kai)關(guan)器(qi)(qi)件(jian)(jian)(jian)(jian)q5關(guan)斷(duan)，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)感(gan)l2中c點(dian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)ic和(he)諧(xie)振(zhen)槽勵磁(ci)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)im共同(tong)給開(kai)(kai)(kai)(kai)(kai)(kai)關(guan)器(qi)(qi)件(jian)(jian)(jian)(jian)q7和(he)q8的(de)寄(ji)生(sheng)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容充、放(fang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)，為(wei)開(kai)(kai)(kai)(kai)(kai)(kai)關(guan)器(qi)(qi)件(jian)(jian)(jian)(jian)q8的(de)零(ling)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)開(kai)(kai)(kai)(kai)(kai)(kai)通做準(zhun)備；鉗位(wei)階(jie)(jie)段(duan)t4時間內(nei)，開(kai)(kai)(kai)(kai)(kai)(kai)關(guan)器(qi)(qi)件(jian)(jian)(jian)(jian)q6和(he)q8導(dao)通，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)感(gan)不(bu)與外(wai)界產生(sheng)能量交(jiao)換，其內(nei)的(de)反向(xiang)環(huan)流(liu)(liu)為(wei)下一周(zhou)期t1階(jie)(jie)段(duan)開(kai)(kai)(kai)(kai)(kai)(kai)關(guan)器(qi)(qi)件(jian)(jian)(jian)(jian)q5導(dao)通前寄(ji)生(sheng)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容進(jin)(jin)(jin)行(xing)(xing)放(fang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)，從而實(shi)現開(kai)(kai)(kai)(kai)(kai)(kai)關(guan)器(qi)(qi)件(jian)(jian)(jian)(jian)q5的(de)零(ling)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)導(dao)通；

16、所(suo)述電感l1、l2的(de)工作電流il1、il2在不(bu)同輸入電壓下的(de)具體調控過程如下：

17、假設(she)諧(xie)振槽(cao)及其(qi)副邊整流電路均(jun)為理想器(qi)件，無額外(wai)損耗，支撐電容cv在穩(wen)態時電壓恒(heng)定為vc，由于諧(xie)振槽(cao)工作在諧(xie)振頻率(lv)處，其(qi)具有增益kr，并且有vo＝kr·vc；

18、當輸入(ru)電壓vin＝vc時(shi)，電流(liu)ab段(duan)(duan)斜率為(wei)0，且da段(duan)(duan)電流(liu)斜率絕對值(zhi)等于bc段(duan)(duan)，此時(shi)工作電流(liu)波形呈等腰梯形，電源一個周期內輸入(ru)電流(liu)平(ping)均值(zhi)等于向支撐電容cv輸送電流(liu)平(ping)均值(zhi)，即面積(ji)s1+s2等于面積(ji)s2+s3，s1為(wei)da段(duan)(duan)電流(liu)與(yu)橫(heng)(heng)坐(zuo)標構(gou)成(cheng)幾(ji)(ji)何(he)形狀的(de)(de)面積(ji)，s2為(wei)ab段(duan)(duan)電流(liu)與(yu)橫(heng)(heng)坐(zuo)標構(gou)成(cheng)幾(ji)(ji)何(he)形狀的(de)(de)面積(ji)，s3為(wei)bc段(duan)(duan)電流(liu)與(yu)橫(heng)(heng)坐(zuo)標構(gou)成(cheng)幾(ji)(ji)何(he)形狀的(de)(de)面積(ji)；

19、當(dang)輸(shu)入電(dian)(dian)(dian)壓(ya)(ya)vin<vc時(shi)，電(dian)(dian)(dian)流(liu)(liu)ab段(duan)斜率(lv)為負，da段(duan)電(dian)(dian)(dian)流(liu)(liu)斜率(lv)絕對值小(xiao)于(yu)bc段(duan)，由(you)于(yu)輸(shu)入電(dian)(dian)(dian)壓(ya)(ya)減小(xiao)，輸(shu)出電(dian)(dian)(dian)壓(ya)(ya)會產生瞬態跌落，此(ci)時(shi)電(dian)(dian)(dian)壓(ya)(ya)環(huan)輸(shu)出正向累(lei)積，電(dian)(dian)(dian)壓(ya)(ya)環(huan)輸(shu)出verr增(zeng)(zeng)大(da)，a點電(dian)(dian)(dian)流(liu)(liu)ia增(zeng)(zeng)大(da)，t2階段(duan)時(shi)長(chang)在kverr的作用下也同時(shi)增(zeng)(zeng)大(da)，使得面積s1+s2大(da)于(yu)面積s2+s3，電(dian)(dian)(dian)源一個周(zhou)期內輸(shu)入電(dian)(dian)(dian)流(liu)(liu)平(ping)均值大(da)于(yu)向支撐(cheng)電(dian)(dian)(dian)容cv輸(shu)送電(dian)(dian)(dian)流(liu)(liu)平(ping)均值，從(cong)而穩定輸(shu)出電(dian)(dian)(dian)壓(ya)(ya)vo；

20、當輸(shu)入電(dian)(dian)壓vin>vc時(shi)(shi)，電(dian)(dian)流(liu)ab段斜(xie)率為(wei)正，da段電(dian)(dian)流(liu)斜(xie)率絕(jue)對值(zhi)大(da)(da)于(yu)bc段，由于(yu)輸(shu)入電(dian)(dian)壓增大(da)(da)，輸(shu)出(chu)電(dian)(dian)壓會(hui)產生瞬態過沖，此時(shi)(shi)電(dian)(dian)壓環輸(shu)出(chu)負向累積(ji)，verr減小，a點電(dian)(dian)流(liu)ia減小，t2階段時(shi)(shi)長在kverr的作(zuo)用(yong)下也同(tong)時(shi)(shi)減小，使得(de)面(mian)(mian)積(ji)s1+s2小于(yu)面(mian)(mian)積(ji)s2+s3，即電(dian)(dian)源一個周期(qi)內(nei)輸(shu)入電(dian)(dian)流(liu)平均值(zhi)小于(yu)向支撐電(dian)(dian)容cv輸(shu)送電(dian)(dian)流(liu)平均值(zhi)，進而實現穩定輸(shu)出(chu)電(dian)(dian)壓vo；

21、所述電(dian)感l1、l2的工作(zuo)電(dian)流il1、il2在不同負(fu)載電(dian)流io下(xia)存在三種工作(zuo)狀(zhuang)態：

22、當負載電(dian)流較大(da)時，il1和il2工作在臨界連續狀態，此時c點(dian)與(yu)d點(dian)重合(he)，鉗(qian)位階段t4時間為0；

23、當(dang)負載電(dian)流(liu)(liu)(liu)(liu)io減小(xiao)(xiao)(xiao)時(shi)，其會引起輸(shu)(shu)出電(dian)壓(ya)vo瞬態(tai)(tai)過沖，補償器(qi)對(dui)誤差進行負向累(lei)積，verr減小(xiao)(xiao)(xiao)，a點電(dian)流(liu)(liu)(liu)(liu)ia減小(xiao)(xiao)(xiao)，t2階(jie)段(duan)時(shi)長在(zai)kverr的作用下也同時(shi)減小(xiao)(xiao)(xiao)，使得變換器(qi)輸(shu)(shu)入(ru)平均(jun)電(dian)流(liu)(liu)(liu)(liu)和(he)(he)輸(shu)(shu)出平均(jun)電(dian)流(liu)(liu)(liu)(liu)減小(xiao)(xiao)(xiao)，從而穩定輸(shu)(shu)出電(dian)壓(ya)，隨著變換器(qi)輸(shu)(shu)入(ru)平均(jun)電(dian)流(liu)(liu)(liu)(liu)和(he)(he)輸(shu)(shu)出平均(jun)電(dian)流(liu)(liu)(liu)(liu)的減小(xiao)(xiao)(xiao)，il1和(he)(he)il2開始工作在(zai)電(dian)流(liu)(liu)(liu)(liu)斷續狀態(tai)(tai)；若a點電(dian)流(liu)(liu)(liu)(liu)ia和(he)(he)b點電(dian)流(liu)(liu)(liu)(liu)ib均(jun)大(da)于最小(xiao)(xiao)(xiao)軟(ruan)開關電(dian)流(liu)(liu)(liu)(liu)izvs，此時(shi)的工作狀態(tai)(tai)稱為非鉗(qian)位斷續狀態(tai)(tai)；

24、當負載電(dian)(dian)流(liu)io進(jin)(jin)一步減(jian)小(xiao)時(shi)，對(dui)于(yu)(yu)vin<vc的情(qing)(qing)況，b點電(dian)(dian)流(liu)ib會首先降(jiang)(jiang)低至最小(xiao)軟開(kai)(kai)關(guan)電(dian)(dian)流(liu)izvs，為(wei)保證開(kai)(kai)關(guan)器件(jian)q2/q6能夠實(shi)(shi)現zvs，需(xu)將(jiang)ib鉗(qian)位(wei)至izvs，此(ci)時(shi)工作(zuo)(zuo)電(dian)(dian)流(liu)進(jin)(jin)入(ru)鉗(qian)位(wei)斷(duan)續狀(zhuang)(zhuang)態，變換器的電(dian)(dian)壓(ya)(ya)調(diao)節(jie)僅(jin)由verr控制(zhi)ia實(shi)(shi)現；對(dui)于(yu)(yu)vin>vc的情(qing)(qing)況，a點電(dian)(dian)流(liu)ia會首先降(jiang)(jiang)低至最小(xiao)軟開(kai)(kai)關(guan)電(dian)(dian)流(liu)izvs，為(wei)保證開(kai)(kai)關(guan)器件(jian)q1/q5能夠實(shi)(shi)現zvs，需(xu)將(jiang)ia鉗(qian)位(wei)至izvs，此(ci)時(shi)工作(zuo)(zuo)電(dian)(dian)流(liu)進(jin)(jin)入(ru)鉗(qian)位(wei)斷(duan)續狀(zhuang)(zhuang)態，變換器的電(dian)(dian)壓(ya)(ya)調(diao)節(jie)僅(jin)由kverr控制(zhi)t2實(shi)(shi)現；對(dui)于(yu)(yu)vin＝vc的情(qing)(qing)況，a點電(dian)(dian)流(liu)ia等(deng)于(yu)(yu)b點電(dian)(dian)流(liu)ib，當ia降(jiang)(jiang)至最小(xiao)軟開(kai)(kai)關(guan)電(dian)(dian)流(liu)izvs時(shi)，其被鉗(qian)位(wei)，此(ci)時(shi)工作(zuo)(zuo)電(dian)(dian)流(liu)進(jin)(jin)入(ru)鉗(qian)位(wei)斷(duan)續狀(zhuang)(zhuang)態，變換器的電(dian)(dian)壓(ya)(ya)調(diao)節(jie)僅(jin)由kverr控制(zhi)t2實(shi)(shi)現。

25、相(xiang)比于現有(you)技術(shu)，本發明具(ju)有(you)如下優點：

26、1、本(ben)發明的雙(shuang)相交錯交流鏈變換器實現(xian)(xian)了將(jiang)斬(zhan)波(bo)電路(lu)與諧(xie)振(zhen)電路(lu)相結(jie)合，電路(lu)拓撲(pu)具有斬(zhan)波(bo)電路(lu)易于調(diao)壓和諧(xie)振(zhen)電路(lu)易于實現(xian)(xian)軟開關及(ji)磁集成的優勢。

27、2、本(ben)發(fa)明雙(shuang)相(xiang)交錯交流(liu)鏈變換(huan)器(qi)中的(de)(de)(de)雙(shuang)相(xiang)交錯buck-boost結(jie)構(gou)可(ke)以(yi)作為(wei)(wei)vba供電(dian)(dian)架(jia)(jia)構(gou)中的(de)(de)(de)電(dian)(dian)壓調節兼逆(ni)變環節，并可(ke)封裝(zhuang)為(wei)(wei)虛擬(ni)(ni)母(mu)線供電(dian)(dian)架(jia)(jia)構(gou)(virtualbusarchitecture，簡稱(cheng)vba架(jia)(jia)構(gou))中的(de)(de)(de)前置模塊，放(fang)置在板卡邊(bian)緣(yuan)，以(yi)便接(jie)入輸入母(mu)線。串聯諧振(zhen)槽結(jie)構(gou)及其副邊(bian)整(zheng)流(liu)電(dian)(dian)路可(ke)以(yi)作為(wei)(wei)vba供電(dian)(dian)架(jia)(jia)構(gou)中的(de)(de)(de)諧振(zhen)降壓環節，并可(ke)封裝(zhuang)為(wei)(wei)vba架(jia)(jia)構(gou)中的(de)(de)(de)負(fu)(fu)載點模塊，放(fang)置在負(fu)(fu)載點處，以(yi)提供更好的(de)(de)(de)動態性能。變換(huan)器(qi)中的(de)(de)(de)a、b點處形成高(gao)(gao)壓交流(liu)傳輸鏈，相(xiang)比(bi)于(yu)ibc架(jia)(jia)構(gou)中的(de)(de)(de)12v母(mu)線具有更低(di)的(de)(de)(de)pdn損耗。因此(ci)相(xiang)比(bi)于(yu)現(xian)有供電(dian)(dian)架(jia)(jia)構(gou)或(huo)拓撲，本(ben)發(fa)明所提出的(de)(de)(de)虛擬(ni)(ni)母(mu)線供電(dian)(dian)架(jia)(jia)構(gou)更易(yi)實現(xian)高(gao)(gao)效率和(he)高(gao)(gao)功率密(mi)度。

28、3、本(ben)發明提出的(de)(de)雙相交(jiao)錯交(jiao)流(liu)鏈(lian)變(bian)換器的(de)(de)定頻(pin)準峰值電流(liu)控(kong)制(zhi)策略(lve)是一種連續控(kong)制(zhi)方(fang)法(fa)，其對(dui)工(gong)作電流(liu)波形的(de)(de)實(shi)時控(kong)制(zhi)，在(zai)不同工(gong)況下不改變(bian)控(kong)制(zhi)對(dui)象和控(kong)制(zhi)參量，無需算(suan)法(fa)切換，可以避(bi)免(mian)在(zai)頻(pin)繁的(de)(de)負載跳(tiao)變(bian)下算(suan)法(fa)邊(bian)界(jie)震(zhen)蕩的(de)(de)問題。

29、4、本發(fa)明提(ti)出(chu)的雙相交錯交流鏈(lian)變換器(qi)(qi)的定頻準峰值電(dian)(dian)流控(kong)制策(ce)(ce)略可由數字控(kong)制器(qi)(qi)結合模擬電(dian)(dian)路實現(xian)，與(yu)現(xian)有控(kong)制策(ce)(ce)略相比，可占用(yong)數字控(kong)制器(qi)(qi)更少的存儲(chu)資源和計算資源。

30、5、在(zai)本發明提(ti)出(chu)的(de)(de)雙相交錯交流(liu)鏈變(bian)換器(qi)的(de)(de)定頻準峰值電(dian)流(liu)控制策(ce)略下，雙相交錯交流(liu)鏈變(bian)換器(qi)可以實(shi)現(xian)全部開(kai)關(guan)器(qi)件的(de)(de)軟開(kai)關(guan)，并具有良好的(de)(de)動態(tai)響應能力。