2.1 鎷�?f霉)婧鎿�

    婧�(zh菙n)鍠礆(j铆)寮忓弽婵€閫嗚畩鍣ㄥ儏鏈変竴绱�(j铆)鐨勫姛鐜囪畩鎻�^[4]锛屾嫇?f霉)娴�?ji菐n)鍠�锛屽挨鍏堕仼鍚堜綆鎴愭湰鎳�(y墨ng)鐢ㄥ牬(ch菐ng)鍚堢殑瑕佹眰銆傚湪鏂风簩(x霉)妯″紡锛圖CM锛夊強鑷ㄧ晫閫ｇ簩(x霉)妯″紡锛圔CM锛変笅锛屽叾鍛堢従(xi脿n)闆绘祦婧愮壒鎬�锛屾帶鍒剁郴绲�(t菕ng)瑷�(sh猫)瑷�(j矛)绨�(ji菐n)鍠�锛屽競鐩墠鍏変紡寰€嗚畩鍣ㄧ殑鐞嗘兂鎷�?f霉)?銆傜敱浜庡弽婵€璁婃彌鍣ㄨ几鍑哄姛鐜囨湁闄�锛屽湪寰€嗚畩鍣ㄧ郴绲�(t菕ng)绲�(ji茅)妲�(g貌u)涓紝閫欓噷閲囧彇濡傚湒1鎵€绀轰氦閷�(cu貌)骞惰伅(li谩n)鎶€琛�(sh霉)锛氬皣鍏╄矾鍙嶆縺璁婃彌鍣ㄨ几鍏ュ苟鑱�(li谩n)锛岃几鍑哄苟鑱�(li谩n)锛屽師閭婄殑涓荤浜ら尟(cu貌)180搴﹀皫(d菐o)閫氫互娓涘皬杓稿叆杓稿嚭闆绘祦绱嬫尝锛屽悓鏅�(sh铆)鍏敤涓€绲勮几鍑烘サ鎬х炕杞�(zhu菐n)姗�锛涜€冩叜鍒板弽婵€璁婂鍣ㄦ紡鎰熺殑瀛樺湪锛岄€�(j矛n)涓€姝ラ噰鍙栨湁婧愰墬浣嶆妧琛�(sh霉)鍥炴敹婕忔劅锛屽苟瀵�(sh铆)鐝�(xi脿n)浜嗕富绠″拰杓斿姪绠＄殑ZVS锛屾湁鏁堟笡灏忛枊(k膩i)闂�(gu膩n)鎼嶈€�锛屾彁楂樹簡闆昏矾鏁堢巼銆�

鍦�1 浜ら尟(cu貌)骞惰伅(li谩n)鍙嶆縺鍨嬪井閫嗚畩鍣ㄦ嫇?f霉)娴(ji茅)妲�(g貌u)

    姝ゆ檪(sh铆)鍏変紡绲勪欢缍�(j墨ng)閬�(gu貌)鍙嶆縺璁婃彌鍣ㄤ富闁�(k膩i)闂�(gu膩n)SPWM楂橀牷瑾�(di脿o)鍒�锛屽緱鍒板寘绲�(lu貌)绶�(xi脿n)鐐哄柈妤垫€у伐闋绘寮﹀崐娉㈢殑杓稿嚭闆绘祦銆備氦娴佸伌(c猫)鐨勫伐闋绘彌鍚戞⿱椹�(q奴)鍕�(d貌ng)鏅�(sh铆)搴忚窡韫ら浕缍�(w菐ng)闆诲锛屽皣鍓嶉潰鐨勫柈妤垫€у伐闋绘寮﹀崐娉㈢炕杞�(zhu菐n)鐐烘寮︽尝骞剁恫(w菐ng)闆绘祦锛岃垏闆荤恫(w菐ng)闆诲鍚岄牷鍚岀浉銆�

2.2宸ヤ綔妯″紡鍒嗘瀽

    鏍规摎(j霉)璁婂鍣ㄧ殑纾侀€氭槸鍚﹂€ｇ簩(x霉)锛屽彲灏囧弽婵€璁婃彌鍣ㄧ殑宸ヤ綔妯″紡鍒嗙偤闆绘劅闆绘祦閫ｇ簩(x霉)妯″紡锛圕CM锛�銆丏CM鍙夿CM 3绋€侰CM妯″紡涓嬪弽婵€閫嗚畩鍣ㄧ浉灏�(du矛)绌�(w臎n)瀹氭€ц純宸�锛岄渶瑕佸Ε鍠勮檿鐞嗐€傜洰鍓嶄富娴佺殑鍙嶆縺閫嗚畩鍣ㄤ互DCM鍙夿CM鐐轰富锛屼絾鐢变簬鍦˙CM妯″紡涓�锛岄渶瑕侀噰鐢ㄨ畩闋绘帶鍒�锛岃▓(j矛)绠楀拰鎺у埗閮借純鐐哄京(f霉)闆�锛屽洜姝ら€欓噷閲囩敤DCM銆傜浉灏�(du矛)BCM鍙奀CM锛孌CM鐨勫劒(y艒u)榛�(di菐n)鏄亽闋诲伐浣�锛屾帶鍒剁啊(ji菐n)鍠紝涓旀秷闄や簡娆＄礆(j铆)浜屾サ绠″弽鍚戞仮寰�(f霉)鍟�(w猫n)椤�锛涚己榛�(di菐n)鏄浉姣擟CM姝ゆ檪(sh铆)鍕�(l矛)纾侀浕鎰熻純灏忥紝鍣ㄤ欢宄板€奸浕娴佹噳(y墨ng)鍔涜純澶�銆�

    鐐虹⒑淇濊畩鎻涘櫒宸ヤ綔鍦―CM锛岄渶鍏跺垵绱�(j铆)闆绘劅Lp鍗冲嫷(l矛)纾侀浕鎰熷皬浜庤嚚鐣岄€ｇ簩(x霉)闆绘劅鍊�銆傚畾缇╁伐闋诲懆鏈�T_grid鏄珮闋婚枊(k膩i)闂�(gu膩n)鍛ㄦ湡鐨�2k鍊�锛屽畾缇�d_p鐐烘渶澶у崰绌烘瘮锛岀敱浜庤几鍏ラ浕娴佸ぇ灏忓拰鍗犵┖姣旀垚姝ｆ瘮锛屽洜姝ゆ瘡鍊�(g猫)闁�(k膩i)闂�(gu膩n)鍛ㄦ湡鐨勫崰绌烘瘮涔熸槸姝ｅ鸡鑴堢怠(lu貌)d_psin(i蟺/k)锛屽墖璁婂鍣ㄥ師閭婇浕娴�i_dc鐨勫钩鍧囧€肩偤锛�

3 鎺у埗绯荤当(t菕ng)

3.1鎺у埗妗嗗湒

    婧�(zh菙n)鍠礆(j铆)寮忓井閫嗚畩鍣ㄩ渶鍚屾檪(sh铆)瀹屾垚MPPT銆侀帠鐩�銆佸宄舵娓�(c猫)鍜屽叆缍�(w菐ng)闆绘祦鎺у埗^[5][6]銆傚鍦�2鎵€绀�锛岄€氶亷(gu貌)MPPT瑷�(j矛)绠楁彁渚涘緱鍒扮殑骞剁恫(w菐ng)闆绘祦鐨勫熀婧�(zh菙n)骞呭€�I_o澶у皬锛屽緸鑰岀⒑淇濆厜浼忕祫浠朵互鏈€澶у姛鐜囧悜闆荤恫(w菐ng)鍌宠几鑳介噺銆傞帠鐩告彁渚涘苟缍�(w菐ng)闆绘祦鐨勭浉浣嶄俊鎭�锛岀⒑淇濆叆缍�(w菐ng)闆绘祦鑸囬浕缍�(w菐ng)闆诲鍚岄牷鍚岀浉銆傚宄舵娓�(c猫)鏄苟缍�(w菐ng)閫嗚畩鍣ㄦ墍蹇呴爤鍏峰倷鐨勫姛鑳�锛屽湪闆荤恫(w菐ng)鐣板父鎯呮硜涓嬮棞(gu膩n)闁夐€嗚畩鍣紝纰轰繚浜哄摗鍜岃ō(sh猫)鍌欑殑瀹夊叏銆傚叆缍�(w菐ng)闆绘祦鎺у埗鏄苟缍�(w菐ng)閫嗚畩鍣ㄧ殑鏍稿績鎺у埗閮ㄥ垎锛岄€欓噷閫氶亷(gu貌)閲囨ǎ杓稿嚭闆绘祦闁夌挵(hu谩n)鎺у埗锛岀⒑淇濅簡楂樿唱(zh矛)閲忕殑骞剁恫(w菐ng)闆绘祦锛堢悊璜栦笂鍦―CM涓�锛岄枊(k膩i)鐠�(hu谩n)鎺у埗鍗冲彲瀵�(sh铆)鐝�(xi脿n)闆绘祦婧愬苟缍�(w菐ng)锛屼絾鍏跺苟缍�(w菐ng)闆绘祦绺借娉㈠惈閲忕浉灏�(du矛)杓冮珮锛�銆�

鍦�2 鎺у埗绯荤当(t菕ng)

3.2婧�(zh菙n)鍠礆(j铆)寮忕郴绲�(t菕ng)MPPT鍙婄洿娴佹瘝绶�(xi脿n)闆诲鎺у埗

    MPPT鏄€氶亷(gu貌)鐩告噳(y墨ng)鐨勭畻娉�锛屼笉鏂疯(di脿o)鏁村苟缍�(w菐ng)闆绘祦鍩烘簴(zh菙n)锛岃(di脿o)鏁撮€嗚畩鍣ㄨ几鍑哄姛鐜�锛屽緸鑰岃(di脿o)绡€(ji茅)鍏変紡绲勪欢鐨勮几鍑哄姛鐜囷紝浣垮緱鍏変紡绲勪欢杓稿嚭鍔熺巼鏈€澶�銆�

    鎿惧嫊(d貌ng)瑙€(gu膩n)瀵熸硶鍘熺悊绨�(ji菐n)鍠�锛屾槗浜庡(sh铆)鐝�(xi脿n)锛屾槸MPPT绠楁硶涓渶甯哥敤鐨勬柟娉曚箣涓€銆傚叾绠楁硶鍘熺悊鏄暥(d膩ng)鍓嶆鐨勮几鍑哄姛鐜囪垏鍓嶄竴娆＄殑杓稿嚭鍔熺巼浣滄瘮杓�锛屽亣瑷�(sh猫)P(k+1)>P(k)锛岄偅涔堝皣鍏変紡杓稿嚭闆诲鍩烘簴(zh菙n)绻肩簩(x霉)鍚戣憲閫欎竴娆¤畩鍖栫殑鐩稿悓鐨勬柟鍚戦€�(j矛n)琛屾摼鍕�(d貌ng)锛涘弽涔�锛岃嫢杓稿嚭鍔熺巼璁婂皬锛屽墖鍦ㄤ笅鍊�(g猫)鍛ㄦ湡鏀硅畩鎿惧嫊(d貌ng)鐨勬柟鍚�锛屽姝ら€�(j矛n)琛屽弽寰�(f霉)鎿惧嫊(d貌ng)銆佹瘮杓冪洿鑷冲厜浼忕郴绲�(t菕ng)杓稿嚭鍔熺巼閬�(d谩)鍒版渶澶�銆傜畻娉曟祦绋嬪鍦�3鎵€绀恒€傛摼鍕�(d貌ng)瑙€(gu膩n)瀵熸硶姝ラ暦(zh菐ng)鐨勫ぇ灏忔焙瀹氫簡绠楁硶璺熻工鐨勯€熷害鍜岀郴绲�(t菕ng)鍦ㄦ渶楂樿檿闄勮繎渚�(l谩i)鍥炴尟钑╃殑骞呭害锛屽洜姝�锛屾湰鏂囬噰鍙栦竴绋畩姝ラ暦(zh菐ng)鐨勬摼鍕�(d貌ng)瑙€(gu膩n)瀵熸硶^[7]锛屽叿楂旀柟寮忕暥(d膩ng)鍔熺巼杓冩瘡灏忔檪(sh铆)锛屾摼鍕�(d貌ng)鍊糃鍙栧€煎姞澶э紱鐣�(d膩ng)鍔熺巼杓冨ぇ鍚�锛岄仼鐣�(d膩ng)娓涘皬鎿惧嫊(d貌ng)鍊糃鐨勫彇鍊笺€�

鍦�3鎿惧嫊(d貌ng)瑙€(gu膩n)瀵熸硶绠楁硶娴佺▼

    鍦ㄦ簴(zh菙n)鍠礆(j铆)骞剁恫(w菐ng)閫嗚畩绯荤当(t菕ng)涓�锛屽柈绱旂殑MPPT 鐠�(hu谩n)鐒�(w煤)娉曚繚璀夊緢濂界殑鍕�(d貌ng)鎱�(t脿i)鎬ц兘锛屽(sh铆)鐝�(xi脿n)绯荤当(t菕ng)鐨勭┅(w臎n)瀹氥€傜暥(d膩ng)鐧�(f膩)鐢熷鐣屾浠剁獊璁婃垨鑰呯▼搴忚鍒ゆ柗鏅�(sh铆)锛岀洿娴佹瘝绶�(xi脿n)闆诲鏈�(hu矛)鍔囩儓闇囪暕鐢氳嚦濂旀桨銆傚鍦�3鎵€绀�锛屽湪鍘熸湁鐨勬帶鍒跺熀绀�(ch菙)涓婂姞涓€鍊�(g猫)杓稿叆闆诲鐠�(hu谩n)锛岄槻姝㈠湪MPPT 瑾ゅ垽鏂锋檪(sh铆)鐩存祦姣嶇窔(xi脿n)闆诲鐨勫妵鐑堥渿钑�锛屽彲浠ユ湁鏁堥槻姝㈡瘝绶�(xi脿n)闆诲鐨勫穿娼�锛屽(sh铆)鐝�(xi脿n)绯荤当(t菕ng)鐨勭┅(w臎n)瀹氶亱(y霉n)琛�銆�

4 瀵�(sh铆)椹�(y脿n)绲�(ji茅)鏋�

    鐐洪(y脿n)璀変笂杩颁氦閷�(cu貌)骞惰伅(li谩n)婧�(zh菙n)鍠礆(j铆)楂橀牷鐠�(hu谩n)绡€(ji茅)鍏変紡骞剁恫(w菐ng)寰€嗚畩鍣ㄦ柟妗堬紝鍦ㄥ(sh铆)椹�(y脿n)瀹ゅ畬鎴愪簡鍩轰簬DSP28035鎺у埗鐨�220W寰€嗚畩鍣ㄦǎ姗�(j墨)鐮斿埗銆傚墠绱�(j铆)鐩存祦杓稿叆闆诲V_pv=35VDC锛屽苟缍�(w菐ng)闆诲V_o=220VAC锛岄浕缍�(w菐ng)闋荤巼fac=50Hz, 涓荤V1闁�(k膩i)闂�(gu膩n)闋荤巼fs=135Khz锛屾烤娉㈤浕鎰烲1=1mH锛屽厜浼忕祫浠跺強浜ゆ祦闆荤恫(w菐ng)閲囩敤鍏変紡妯℃摤鍣ㄥ強浜ゆ祦闆绘簮妯℃摤銆傚湒4a锛宐鍒嗗垾鐐鸿紩杓夎垏婊�(m菐n)杓夋檪(sh铆)骞剁恫(w菐ng)闆绘祦i_o鐨勮几鍑烘尝褰�锛屽彲瑕�(ji脿n)i_o鑸�ug鍚岄牷鍚岀浉锛屼笖i_o娉㈠舰璩�(zh矛)閲忛兘杓冨ソ锛涚敱鍦�5c鍙(ji脿n)锛孷1鍦ㄩ枊(k膩i)閫氳垏闂�(gu膩n)闁夊墠锛屾紡婧愭サ闆诲鐐洪浂锛屽(sh铆)鐝�(xi脿n)浜哣1鐨刏VS锛涘湒4e绲﹀嚭浜嗚畩澹撳櫒鍒濈礆(j铆)闆诲up銆佹绱�(j铆)闆诲us鍜岄浕娴乮s锛寀g鐨勬尝褰�锛岄(y脿n)璀変簡宸ラ牷缈昏綁(zhu菐n)姗嬬殑鍙鎬�銆�

(a) 杓曡級杓稿嚭

(b) 婊�(m菐n)杓夎几鍑�

(c) 涓婚枊(k膩i)闂�(gu膩n)绠℃尝褰�

(d) 绠濅綅绠℃尝褰�

(e) 璁婂鍣ㄥ師鍓倞闆诲娉㈠舰

鍦�4 瀵�(sh铆)椹�(y脿n)娉㈠舰

     鍦�5绲﹀嚭鍏変紡妯℃摤鍣ㄦ脯(c猫)瑭︾殑MPPT鏁堟灉锛孧PPT鏁堢巼鐐�99.5%銆�

鍦�5   I-U鍜孭-U鏇茬窔(xi脿n)

    鍦�6a鏁堢巼娓�(c猫)瑭︽洸绶�(xi脿n)閫�(j矛n)涓€姝ヨ〃鏄庡井閫嗚畩鍣ㄦ暣姗�(j墨)鍦ㄦ暣鍊�(g猫)璨�(f霉)杓夎寖鍦嶅収(n猫i)鍧囬仈(d谩)鍒颁簡杓冮珮鐨勬晥鐜�锛屾豢(m菐n)杓夋渶澶ф晥鐜囬仈(d谩)鍒颁簡94%锛屽湒6b鐐哄湪涓嶈€冩叜杓斿姪闆绘簮鎼嶅け涓嬪姛鍒嗘瀽鍎€娓�(c猫)瑭︾祼(ji茅)鏋�锛屾渶楂樻晥鐜囩偤95%锛屽苟缍�(w菐ng)闆绘祦THD灏忛洦1.5%锛岄(y脿n)璀変簡寰€嗚畩鍣ㄦ柟妗堢殑鍙鎬�銆�

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