1 寮曡█

      闅ㄨ憲闆诲姏闆诲瓙鎶€琛�(sh霉)鐨勭櫦(f膩)灞�锛屽挨鍏舵槸闆诲姏闆诲瓙鍣ㄤ欢鍒堕€犳妧琛�(sh霉)鐨勭櫦(f膩)灞�锛屽湪楂橀浕澹撳ぇ闆绘祦闋�(l菒ng)鍩�锛屽HVDC銆丼VC锛屾櫠闁樼閭勫崰鏈夐噸瑕佺殑鍦颁綅銆傞珮澹撳崐鎺у瀷鍣ㄤ欢鏅堕枠绠＄殑浣滅敤灏ょ偤绐佸嚭锛屼絾闆诲姏闆诲瓙鍣ㄤ欢閬庨浕澹撻亷闆绘祦鐨勮兘鍔涘緢寮憋紝鍦ㄦ噳(y墨ng)鐢ㄤ腑閲囩敤澧炲姞鍣ㄤ欢鐨勮ō(sh猫)瑷�(j矛)瑁曞害鍙婂悇绋繚璀�(h霉)鎺柦渚嗗鍔犲櫒浠朵娇鐢ㄧ殑瀹夊叏鎬�銆傚叾涓紝閲囩敤BOD锛圔reak Over Diode锛変綔鐐烘櫠闁樼閬庨浕澹撲繚璀�(h霉)鏍稿績鍣ㄤ欢鐨勬柟寮�锛岀敱浜庡叾蹇€熸€с€佺劇闇€宸ヤ綔闆绘簮銆佸彲闈犳€ч珮锛屽湪SVC鏅堕枠绠￠枼绲勪繚璀�(h霉)涓緱鍒版噳(y墨ng)鐢�銆傚彧瑕佷繚璀�(h霉)闆昏矾瑷�(sh猫)瑷�(j矛)鍙冩暩(sh霉)閬告搰鍚堢悊锛屽氨鑳藉皪鏅堕枠绠￠€�(j矛n)琛屽彲闈犱繚璀�(h霉)锛岀壒鍒ユ槸鍦ㄦ櫠闁樼鐨勪覆鑱�(li谩n)鎳�(y墨ng)鐢ㄤ腑銆�

2  BOD绨′粙

2.1 BOD鐨勭墿鐞嗙祼(ji茅)妲�(g貌u)

      BOD鏄竴绋叿鏈夊洓灞ょ祼(ji茅)妲�(g貌u)鐨勬櫠闁樼锛屾槸涓€绋櫠闁樼椤炵殑浜屾サ绠�锛屼竴鑸ū涔嬬偤绌块€氫簩妤电鎴栬綁(zhu菐n)鎶樹簩妤电锛屽叾绲�(ji茅)妲�(g貌u)鍜孭鈥擭鈥擯鈥擭闁嬮棞(gu膩n)浜岀礆绠￠浼间絾娌掓湁闁€绱氬紩鍑虹窔銆傚叾鍓栭潰绲�(ji茅)妲�(g貌u)绀烘剰鍦栬鍦�1銆侭OD琚搳绌胯€屽畬鍏ㄥ皫(d菐o)閫�锛屾暣鍊�(g猫)閬庣▼澶х磩3~5渭s銆傜敱浜庡湪闄版サ閲囩敤浜唒+鎿�(ku貌)鏁ｇ殑鐭矾鐧�(f膩)灏勬サ绲�(ji茅)妲�(g貌u)锛屽洜鑰岀嵅寰楀緢楂樼殑dv/dt銆備絾鐢变簬鍏堕潪灏嶇ū绲�(ji茅)妲�(g貌u)锛屽弽鍚戣€愬浣�銆�
2.2  BOD鐨勭壒鎬�
(1)浼忓畨鐗规€�

      BOD鐨勪紡瀹夌壒鎬у鍦�2鎵€绀�锛岄櫧妤靛拰闄版サ鎵€鍔犻浕澹撻仈(d谩)鍒癠_BO鏅�(sh铆),BOD琚搳绌胯€屽皫(d菐o)閫氾紝鍏稿瀷杞�(zhu菐n)鎶橀浕娴両_BO鐐�15~30mA锛岀暥(d膩ng)娴侀亷BOD鐨勯浕娴佷綆浜庣董鎸侀浕娴�50mA鏅�(sh铆)BOD鎭㈠京(f霉)闂�(gu膩n)鏂�銆�

鍦�2   BOD鐨勪紡瀹夌壒鎬�

 (2)闃绘柗鐗规€�

      鐢变簬BOD鑸囪淇濊(h霉)鐨勬櫠闁樼鍚屽爆浜庣鏉愭枡鍗婂皫(d菐o)楂斿櫒浠讹紝瀹冨€戠殑鏈€澶х殑闆穿鎿婄┛闆诲牬寮�(qi谩ng)搴max鈮�2脳10⁵v/cm锛岃綁(zhu菐n)鎶橀浕澹撴湁鐩稿悓鐨勬韩搴︾壒鎬э細

U_BO(T_VJ) =U_BO(T_O) [1 +K_T(T_VJ -T_O) ]     (1)

寮忎腑锛歍_O鈥斺€斿弮鑰冩韩搴_O=25 鈩�锛�

T_VJ鈥斺€旈亱(y霉n)琛岀祼(ji茅)婧�锛�

K_T鈥斺€旀韩搴︾郴鏁�(sh霉)(K_T=2*10^-3  K^-1銆�锛�

      鍥犳锛孊OD鑳藉湪寰堝ぇ鐨勬韩搴﹁寖鍦嶅収(n猫i)灏嶆櫠闁樼閫�(j矛n)琛屼繚璀�(h霉)銆備竴鑸€岃█锛孊OD鍦ㄦ渶澶х挵(hu谩n)澧冩韩搴_A涓嬬殑杞�(zhu菐n)鎶橀浕澹撶瓑浜庢垨浣庝簬鏅堕枠绠＄殑椤嶅畾闆诲锛屽嵆锛�

U_BO(T_A)鈮_DRM             

(2)姝ゆ檪(sh铆)鐨勮綁(zhu菐n)鎶橀浕娴両_BO涔熸噳(y墨ng)鑸囨櫠闁樼鐨勯杸妤甸杸妾婚浕娴佺浉灏嶆噳(y墨ng)锛岃綁(zhu菐n)鎶橀浕娴佺殑婧害鐗规€э細

I_BO(T_VJ) = I_BO(T_O) exp[ -伪(T_VJ -T_O)]    (3)

寮忎腑锛屛辩偤婧害绯绘暩(sh霉)锛屛�=0.01 K^-1銆�

(3)闁嬮€氱壒鎬�

      鍦ㄥぇ澶氭暩(sh霉)鎳�(y墨ng)鐢ㄦ儏娉佷笅锛孊OD鎻愪緵鍗佸垎鐭毇鐨勮剤娌栭浕娴侊紝鑴堝澶х磩1~5渭s锛屾渶绲傜祼(ji茅)婧玊_VJ鍙互閫氶亷鍔熺巼鎼嶈€�銆佺啽闃诲拰绲曠啽瑷�(j矛)绠楀緱鍒�锛屽悗鑰呭湪绐勮剤娌栧強楂橀牷闁嬮棞(gu膩n)鎯呮硜涓嬮潪甯搁噸瑕併€傜敱绲曠啽寮曡捣鐨勬韩鍗囪繎浼肩偤锛�

螖T_VJ =E_P/VsCs蟻s = 727Ep     (4)

寮忎腑 Vs鈥斺€旂鐗囨湁鏁堥珨绌�锛�

Cs鈥斺€旂鐗囨瘮鐔�锛�

蟻s鈥斺€旂鐗囨瘮閲�锛�

Ep鈥斺€旇剤娌栬兘閲�锛�

(4)闂�(gu膩n)鏂锋檪(sh铆)闁�

      鐢变簬BOD灞簬鏅堕枠绠�锛屽畠涔熷瓨鍦ㄩ棞(gu膩n)鏂锋檪(sh铆)闁�锛岀偤浜嗛仼鎳�(y墨ng)闋荤巼楂橀仈(d谩)25kHz鐨勬噳(y墨ng)鐢紝瀹冨凡琚ō(sh猫)瑷�(j矛)鎴愮偤涓€绋揩閫熼棞(gu膩n)鏂疯缃�锛屽吀鍨嬬殑闂�(gu膩n)鏂锋檪(sh铆)闁搕q:

tq= 20渭s(I_TM= 100 A锛宼p= 20 渭s锛宒V/dt= 1500 v/渭s锛孴_J= 125 鈩�)銆�

(5)dV/dt鑳藉姏

      BOD鐨勮€恉V/dt鐨勮兘鍔涘湪澶氭暩(sh霉)鎯呮硜涓嬪繀闋堣秴閬庡叾淇濊(h霉)鏅堕枠绠＄殑dV/dt锛岄€欐ǎ鍙互閫氶亷鐭矾鐧�(f膩)灏勬サ绲�(ji茅)妲�(g貌u)瀵�(sh铆)鐝�(xi脿n)锛岃€屼笖瀹冩槸鏅堕枠绠＄殑澶栭儴淇濊(h霉)鍏冧欢锛屽畠閬�(y霉n)琛屽湪鏇翠綆鐨勭挵(hu谩n)澧冩韩搴�锛屽吀鍨婽_A=40~70 鈩冿紝鏈夊埄浜庣郴绲�(t菕ng)鐨刣V/dt鑳藉姏鐨勬彁楂�銆傜洰鍓嶉仈(d谩)鍒颁互6000 v/渭s涓婂崌鍒�0.67U_BO鐨勬按骞炽€�

3.1 鍏稿瀷鎳�(y墨ng)鐢ㄩ浕璺�

      鍦�3鐐洪噰鐢˙OD鐨勬櫠闁樼閬庨浕澹撲繚璀�(h霉)鍏稿瀷鎳�(y墨ng)鐢ㄩ浕璺�銆侭OD閫氶亷涓茶伅(li谩n)涓€鍊�(g猫)闄愭祦闆婚樆R2鍙婇槻姝OD鎵垮彈鍙嶅悜閬庨浕澹撶殑浜屾サ绠2閫ｆ帴浜庤淇濊(h霉)鏅堕枠绠＄殑闄芥サ鍜岄櫚妤典箣闁撱€備綆閫氭烤娉㈡敮璺疪1锛孋1闃绘鐢变簬姝ｅ悜dV/dt  BOD鐢�(ch菐n)鐢熺殑鍋忕Щ闆绘祦锛岄槻姝㈠瘎鐢熻Ц鐧�(f膩)锛屽湪BOD鎿婄┛鏅�(sh铆)锛屽畠閭勮捣鍒板欢绶╂櫠闁樼闁€妤甸浕娴佷綔鐢ㄦ檪(sh铆)闁�锛屾笡灏戞櫠闁樼鐨勯枊閫氭悕鑰�銆俁1鑸嘋1鐨勬帹钖﹀€煎垎鍒ョ偤100~1000 惟锛�0.1~1 渭F銆傜┅(w臎n)澹撶D4闃叉浣庨浕澹撳共鎿句俊铏熶娇鏅堕枠绠¤瑙哥櫦(f膩)銆侱3鎵€鍦ㄦ敮璺偤鏅堕枠绠℃甯稿伐浣滄檪(sh铆)鐨勮Ц鐧�(f膩)闆昏矾銆傝垏绶╂矕闆昏矾鐨勬檪(sh铆)闁撳父鏁�(sh霉)R_SC_S鐩告瘮锛屽鏋滈浕澹撲笂鍗囬€熺巼dV/dt浣�锛岄浕瀹笴_S涓婂凡鍏呴浕鑷虫搳绌块浕澹揢_BO锛岄€欐檪(sh铆)鎿婄┛灏�(d菐o)閫氶浕娴佸嘲鍊硷細

I_TM=U_BO/(R_S+R2)              

(5)濡傛灉dv/dt楂橈紝鍓囨櫠闁樼鐨勭祼(ji茅)闆诲鍏呴浕鑷砋_BO,姝ゆ檪(sh铆)锛�

I_TM=U_BO/R2                 

鍦�3 閲囩敤BOD鏅堕枠绠￠亷闆诲淇濊(h霉)鐨勫吀鍨嬮浕璺�

3.2 鍙冩暩(sh霉)閬告搰

鐢变互涓夿OD鐨勭壒鎬у強鎳�(y墨ng)鐢ㄩ浕璺垎鏋�锛屽彲绺界祼(ji茅)鍙冩暩(sh霉)閬告搰鐨勪竴鑸椹熷涓嬶細

(1)鐢卞紡(2)鍒濇纰哄畾U_BO鐨勫ぇ??锛�                                          

(2)鏍规摎(j霉)鏅堕枠绠＄殑闁€妤佃Ц鐧�(f膩)鐗规€х⒑瀹欱OD鐨勬搳绌垮皫(d菐o)閫氶浕娴佸嘲鍊糏_TM澶у皬鍙婅剤瀵瑃p锛孊OD灏�(d菐o)閫氶浕娴佸繀闋堣兘浣挎櫠闁樼鍙潬瑙哥櫦(f膩)灏�(d菐o)閫�锛屼絾闆绘祦宄板€间笉鑳借秴閬庢櫠闁樼闁€妤垫渶澶ч浕娴佸€糏_GTM锛�

(4)灏囪▓(j矛)绠楁墍寰楃殑绲�(ji茅)婧唬鍏ュ紡(1)鍜屽紡(3)瑷�(j矛)绠楀(sh铆)闅涢亱(y霉n)琛屾檪(sh铆)鐨刄_BO鍙奍_BO锛岃嫢绗﹀悎瑕佹眰锛屽墖閫�(j矛n)琛屾椹�(5)锛屼笉绗﹀悎瑕佹眰锛屽墖閲嶅京(f霉)閫�(j矛n)琛屾椹�(1)~ (4)锛�

(5)鐢盪_BO鍙奍_TM澶у皬閬告搰闄愭祦闆婚樆R2鍙婁繚璀�(h霉)浜屾サ绠2锛�

(6)鏍规摎(j霉)琚繚璀�(h霉)鏅堕枠绠＄殑绲�(ji茅)闆诲鍜孊OD鍣ㄤ欢鐨刣i/dt鑳藉姏纰哄畾R1銆丆1锛�

(7)閫�(j矛n)琛岃│椹�(y脿n)椹�(y脿n)璀�銆�

4 瑭﹂(y脿n)绲�(ji茅)鏋滃垎鏋�

      鍦⊿VC宸ョ▼涓�锛岀瓎鑰呴噰鐢˙OD灏嶆櫠闁樼閫�(j矛n)琛岄亷闆诲淇濊(h霉)锛屾寜涓婅堪姝ラ纰哄畾淇濊(h霉)闆昏矾鍚勫弮鏁�(sh霉)锛岃│椹�(y脿n)鍙冩暩(sh霉)鑸囧(sh铆)闅涢亱(y霉n)琛屽弮鏁�(sh霉)涓€鑷淬€傜偤浜嗗厖鍒嗗埄鐢˙OD锛岀敤涓€鍊�(g猫)BOD灏嶅弽骞惰伅(li谩n)鏅堕枠绠″悓鏅�(sh铆)閫�(j矛n)琛屼繚璀�(h霉)锛屾墍浠ュ鍔犱簡涓€鍊�(g猫)蹇仮寰�(f霉)鏁存祦姗嬨€傜偤浜嗛(y脿n)璀塀OD鐨勪繚璀�(h霉)鐗规€�锛岄€�(j矛n)琛屼簡濡備笅瑭﹂(y脿n)锛岃│椹�(y脿n)鎺ョ窔濡傚湒4銆�

鍦�4   BOD瀵�(sh铆)椹�(y脿n)绶氳矾鍦�

瑭﹂(y脿n)绶氳矾鍙冩暩(sh霉)濡備笅锛�

瑾�(di脿o)澹撳櫒(鍠浉)锛歋_N= 20 kVA锛孶_1N= 220 V锛孶_2N= 0锝�420 V锛寀k= 10%锛�

鍗囧璁婂鍣�(鍠浉):S_N= 20 kVA锛孶_1N/U_2N= 220V/10000V锛寀k= 5%锛�

C₀= 0.5渭F/8kV锛孯s= 54 惟锛�

Cs= 0.44渭F/4kV锛孯5=R6= 120 惟锛�

C1=C2= 0.068 渭F锛孯3=R4= 120 惟锛�

T1,T2锛�1700A /3800V锛孊OD锛歏_BO= 3400 V銆�

       濡傚湒5鎵€绀虹ず娉㈠櫒妾㈡脯鍒扮殑BOD鍕曚綔鏅�(sh铆)鏅堕枠绠″叐绔浕澹撳強瑙哥櫦(f膩)娉㈠舰锛岋紙1锛夐儴鍒嗘槸鏅堕枠绠″叐绔殑闆诲娉㈠舰锛岀ず娉㈠櫒琛ㄧ瓎浣跨敤鐨勬槸宸垎鎺㈤牠瑾�(di脿o)鑷硏10鎿嬬殑锛岀敱瑾�(di脿o)澹撳櫒閫愭几鍗囧锛岀洿鑷矪OD鍕曚綔銆�

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5 绲�(ji茅)鏉熻獮

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