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銆€銆€1 鑳屾櫙

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銆€銆€2 鍏変紡鐧�(f膩)闆荤郴绲�(t菕ng)鐨勭祫鎴�

銆€銆€鍏変紡鐧�(f膩)闆荤郴绲�(t菕ng) (Photovoltaic Generation System)锛� 绨＄ū鍏変紡(PV)锛屾槸鎸囧埄鐢ㄥ厜浼忛浕姹犵殑鍏夌敓浼忕壒鏁堟噳(y墨ng)锛屽皣澶� 闄借蓟灏勮兘鐩存帴杞�(zhu菐n)鎻涙垚闆昏兘鐨勭櫦(f膩)闆荤郴绲�(t菕ng)锛屽鍦�2鎵€绀�銆傚厜浼忕櫦(f膩) 闆荤郴绲�(t菕ng)鐨勮兘閲忎締婧愪簬鍙栦箣涓嶇洝銆佺敤涔嬩笉绔殑澶櫧鑳�锛屾槸涓€绋� 娓呮綌銆佸畨鍏ㄥ拰鍙啀鐢熺殑鑳芥簮銆傚厜浼忕櫦(f膩)闆婚亷绋嬩笉姹℃煋鐠�(hu谩n)澧�锛屼笉 鐮村鐢熸厠(t脿i)銆備竴鑸厜浼忕櫦(f膩)闆荤郴绲�(t菕ng)鏄敱鍏変紡闆绘睜銆侀€嗚畩鍣�銆佸苟缍�(w菐ng) 绠便€佹敮鏋�銆佷氦鐩存祦绶氱簻绛夌祫鎴�銆�

銆€銆€鑰岄€嗚畩鍣�(Inverter)浣滅偤鍏変紡鐧�(f膩)闆荤郴绲�(t菕ng)涓牳蹇冪殑闆诲姏 杞�(zhu菐n)鎻涘姛鑳芥ā濉�锛屽畠鍙互灏囧厜浼忛浕姹犵敘(ch菐n)鐢熺殑鐩存祦闆昏綁(zhu菐n)鎻涚偤甯傞浕 闋荤巼涓€鑷寸殑浜ゆ祦闆诲弽楗嬪洖甯傞浕绯荤当(t菕ng)鎴栦緵浜ゆ祦瑷�(sh猫)鍌欎娇鐢ㄣ€傚厜浼� 閫嗚畩鍣ㄧ殑绋鏈夊苟/闆㈢恫(w菐ng)鍨�;鍠浉鍜屼笁鐩�锛屾牴鎿�(j霉)闅旈洟鐨勮姹傚垎 鐐哄伐闋婚殧闆�/楂橀牷闅旈洟/闈為殧闆�锛屾牴鎿�(j霉)鍔熺巼澶у皬鍙堝垎寰瀷閫嗚畩 鍣�;绲勪覆寮忛€嗚畩鍣�;闆嗕腑寮忛€嗚畩鍣ㄧ瓑锛屼笉鍚岄鍨嬬殑閫嗚畩鍣ㄩ浕璺� 鏋舵(g貌u)涔熶笉涓€妯�锛屾帴涓嬩締灏囦互绲勪覆寮忓柈鐩稿苟缍�(w菐ng)閫嗚畩鍣ㄤ締鍋氫粙绱�銆�

銆€銆€3 鍏変紡閫嗚畩鍣∕PPT鍘熺悊瑙ｆ瀽

銆€銆€澶櫧鑳藉厜浼忛浕姹犵祫鐨勮几鍑哄姛鐜囧彈鍒板绋洜绱犵殑褰遍熆锛� 鍖呮嫭鍏夌収寮峰害銆佹韩搴﹀拰闄板奖绛�锛屽厜浼忛浕姹犵祫鐨� IV 鐗规€ф洸绶� 椤ず浜嗗湪涓嶅悓姊濅欢涓嬬殑闆绘祦鍜岄浕澹撲箣闁撶殑闂�(gu膩n)绯�锛岀敱浜庡叾杓� 鍑烘洸绶氭槸闈炵窔鎬х殑锛屽叾涓湁涓€鍊嬬壒瀹氱殑榛炵ū鐐烘渶澶у姛鐜囬粸 (MPP)锛屽鍦�3鎵€绀恒€傚湪瑭查粸涓婏紝闆绘睜绲勫皣杓稿嚭鏈€澶х殑鍔� 鐜�锛岀偤浜嗕娇鍏変紡闆绘睜涓€鐩村伐浣滃湪鏈€澶у姛鐜囬粸涓婃垜鍊戜娇鐢ㄤ簡MPPT 鏈€澶у姛鐜囬粸杩借工( Maximum Power Point Tracking) 鎶€琛�(sh霉)銆�

銆€銆€MPPT 鎶€琛�(sh霉)鏄厜浼忛€嗚畩鍣ㄤ腑鎻愰珮鐧�(f膩)闆绘晥鐜囩殑闂�(gu膩n)閸垫妧琛�(sh霉)涔� 涓€銆傞€氶亷瀵︽檪瑾�(di脿o)鏁村厜浼忕祫浠剁殑宸ヤ綔闆诲锛孧PPT 鎶€琛�(sh霉)鍙互浣� 鍏変紡鐧�(f膩)闆荤郴绲�(t菕ng)鍦ㄤ笉鍚岀殑鍏夌収寮峰害鍜屾韩搴︽浠朵笅濮嬬祩淇濇寔鍦ㄦ渶 澶у姛鐜囬粸闄勮繎閬嬭锛屽緸鑰屾湁鏁堝湴鎻愰珮浜嗙櫦(f膩)闆绘晥鐜囥€傛摎(j霉)绲�(t菕ng)瑷�锛� 閲囩敤 MPPT 鎶€琛�(sh霉)鐨勫厜浼忛€嗚畩鍣ㄧ浉姣斿偝绲�(t菕ng)閫嗚畩鍣紝鐧�(f膩)闆绘晥鐜囧彲鎻愰珮 10%銆�

銆€銆€閭ｈ┎濡備綍渚嗗鐝�(xi脿n)MPPT鍛�?鎴戝€戝彲浠ラ€氶亷灏嶇暥鍓嶅厜浼忛浕姹� 杓稿嚭闆诲U鑸囬浕娴両 鐨勬娓�锛屽緱鍒扮暥鍓嶅厜浼忛浕姹犵殑杓稿嚭鍔熺巼锛� 鐒跺悗鑸囧墠涓€鏅傚埢鍏変紡闆绘睜鐨勮几鍑哄姛鐜囩浉姣�锛屽彇鍏╄€呬腑杓冨ぇ鐨� 鍊�;鍦ㄤ笅涓€鍛ㄦ湡锛屽啀妾㈡脯U 銆両 閫茶姣旇純锛屽彇杓冨ぇ鐨勫€硷紝濡傛寰� 鐠�(hu谩n)锛屼究鍙鐝�(xi脿n) MPPT 鎺у埗浜�锛岄€欑ó鎺у埗鏂规硶涔熷彨瑙€瀵熸摼鍕曟硶銆�

銆€銆€濡傛灉鍏変紡闆绘睜闆诲楂樹簬閫嗚畩鍣ㄦ瘝绶氳姹傜殑闆诲锛岄€嗚畩鍣� 灏囩洿鎺ュ伐浣滐紝MPPT闆诲灏囩辜绾�(x霉)璺熻工鍒版渶澶ч粸銆備絾閬斿埌鏈€浣庢瘝 绶氶浕澹撹姹傚悗锛屽皣涓嶈兘鍐嶇辜绾�(x霉)闄嶄綆闆诲浜�锛屽鍦�4鎵€绀猴紝閬斾笉鍒� 鏈€澶ф晥鐜囬粸锛孧PPT鐨勮寖鍦嶅氨寰堢獎锛屽ぇ澶у湴闄嶄綆浜嗙櫦(f膩)闆荤殑鏁堢巼銆�

銆€銆€鎵€浠ュ繀闋堣鎯宠睛娉曚締褰岃閫欏€嬬己榛炰締鎻愰珮MPPT鐨勫伐浣� 鑼冨湇锛屽湪鍏変紡闆绘睜浣庝簬閫嗚畩鎵€闇€姹傜殑姣嶇窔闆诲鏅傚彲浠ラ€氶亷鍗� 澹撻浕璺彁楂樻瘝绶氳几鍑洪浕澹擄紝绯荤当(t菕ng)澧炲姞浜咮oost闆昏矾渚嗚В姹烘鍟� 椤�锛屽皣姣嶇窔闆诲鍥哄畾鍦ㄩ€嗚畩鎵€闇€鐨勯浕澹擄紝MPPT鏈夌劇Boost闆� 璺殑灏嶆瘮濡傚湒5鎵€绀�锛屽彲浠ョ湅鍒板姞鍏ヤ簡Boost闆昏矾澶уぇ鍦板鍔� 浜哅PPT鐨勮寖鍦嶃€�

銆€銆€濡傚湒6鎵€绀�锛孊OOST闆昏矾绯荤当(t菕ng)妗嗗湒锛屽彲浠ラ€氶亷PWM鎶€琛�(sh霉) 渚嗘帶鍒堕枊闂�(gu膩n)绠瀵︾従(xi脿n)鍗囧锛屽伐绋嬪斧鏈嬪弸鍊戠煡閬揃OOST闆昏矾鍗� 绌烘瘮D=(Vo-Vi)/Vo锛屽叾涓璙o鐐鸿几鍑洪浕澹擄紝Vi鐐鸿几鍏ラ浕澹�锛� 鍙互鎺у埗鍏跺崰绌烘瘮D鐨勫ぇ灏忎締瀵︾従(xi脿n)杓稿嚭鍔熺巼鎺у埗锛岃几鍑虹┅(w臎n)瀹� 鐨勬瘝绶氶浕澹撲篃浣垮緱DC/AC閫嗚畩杓稿嚭鐨勯浕澹撻浕娴佹尝褰㈡洿鍔犵殑绌�(w臎n)瀹�銆�

銆€銆€4 鍏変紡閫嗚畩鍣―C/AC鍘熺悊瑙ｆ瀽

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銆€銆€鍠サ鎬PWM鐨勫劒(y艒u)榛炲寘鎷細

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