Na usoro nkesa na nkesa nke 3-35kV nke China, ọtụtụ n'ime ebe na-anọpụ iche abụghị nke ala.Dị ka ụkpụrụ ụlọ ọrụ mba si dị, mgbe otu usoro ala na-eme, usoro ahụ nwere ike na-arụ ọrụ na-adịghị mma maka awa 2, nke na-ebelata ụgwọ ọrụ nke ukwuu ma na-eme ka ntụkwasị obi nke ike ọkụ na nkesa nkesa dịkwuo mma.Otú ọ dị, n'ihi ọganihu na-aga n'ihu nke ike inye ike nke usoro ahụ, ọnọdụ nke ọkụ ọkụ na-eji nwayọọ nwayọọ na-agbanwe site na eriri nnyefe gaa na eriri USB, na ntinye nke ugbu a site na usoro na capacitor okporo ụzọ ga-adị nnọọ ukwuu.Mgbe usoro ahụ gbadoro ụkwụ n'otu oge, nchebe nke capacitor dị ugbu a adịghị mfe ikpochapụ, a na-agbanwekwa ya n'ime usoro nkwụsịtụ oge.Mfefe nke sistemu mgbado ala na ferromagnetic parallel resonance overvoltage nke oke voltaji kpatara ga-etinye nnukwu ọrụ nchekwa nke grid ike n'ihe egwu.The overvoltage nke abụọ-phase-echebe grounding usoro dị njọ karị, na overvoltage larịị nke n'ibu ọdịda frasi bụ 3 ka 3.5 ugboro nke niile nkịtị ọrụ na-adọ voltaji.Ọ bụrụ na oke oke ọkụ dị otú ahụ na-eme na grid ọkụ ruo ọtụtụ awa, ọ ga-emebi ihe mkpuchi nke akụrụngwa eletrik.Mgbe nchịkọta ugboro ugboro na mmebi nke mkpuchi mkpuchi nke ngwa eletriki, ọ ga-eme ka ebe adịghị ike nke mkpuchi mkpuchi ahụ, na-eme ka usoro nkwụsị ala na-adịghị mma nke mkpuchi mkpuchi ahụ, ma mee ka ihe mberede ọdịda mkpụmkpụ nke agba abụọ.Na mgbakwunye, ọ ga-akpatakwa ihe ọghọm nchekwa dị ka ọdịda nke mkpuchi mkpuchi nke akụrụngwa eletriki (isi ihe bụ ọdịda nke mkpuchi mkpuchi nke moto), mgbawa nke eriri, ebe emission PT nke onye na-ahụ maka mgbanwe mgbanwe saturation excitation, mgbawa nke elu-voltaji arrester, wdg Iji dozie overvoltage nsogbu kpatara ogologo oge eletriki nchebe grounding usoro, na arc suppression eriri igwe na-eji kwụọ ụgwọ ugbu a nke neutralization capacitor, na ohere nke nkịtị mmejọ ebe nchekwa eletrik bụ. egbochie.Ebumnuche nke usoro a bụ iwepụ fotoelectricity.Ka ọ dị ugbu a, o doghị anya na eriri mkpuchi arc n'onwe ya nwere ọtụtụ njirimara, ọ nweghịkwa ike ịkwụghachi ikike nke ugbu a nke ọma, ọkachasị mmebi nke a na-akpata na akụrụngwa voltaji dị elu enweghị ike ịkwụ ụgwọ ma ọchọrọ.Dabere na nyocha sayensị na mgbanaka mgbanaka mgbanaka dị iche iche, ụlọ ọrụ anyị ewepụtala akụrụngwa mgbochi arc nwere ọgụgụ isi HYXHX.
Ogo nke ngwa nke ngwa mgbanyụ arc nwere ọgụgụ isi:
1. Nke a na ngwá bụ adabara 3 ~ 35KV ọkara voltaji ike usoro;
2. Ngwá ọrụ a dị mma maka usoro ọkụ ọkụ ebe ebe a na-anọpụ iche na-adịghị adabere na ya, ebe a na-anọpụ iche na-adabere na eriri arc na-egbochi, ma ọ bụ na-anọpụ iche na-adabere na nguzogide dị elu.
3. Ngwá ọrụ a dị mma maka grids ọkụ na eriri dị ka isi ahụ, ngwakọ ọkụ ọkụ na eriri na eriri dị n'elu dị ka isi ahụ, na grids na eriri n'elu dị ka isi ahụ.
Njirimara nka nke ngwaọrụ mmechi arc nwere ọgụgụ isi:
Onye njikwa ahụ na-anabata usoro CPU anọ, otu maka mmekọrịta mmadụ na nzikọrịta ozi oge, otu maka nlele na mgbako, otu maka njikwa akara ngosi mmepụta iji hụ na izi ezi nke akara mmepụta, na otu maka ndekọ mmejọ.
Njirimara ngwanrọ:
1. Real-time multitasking operating system (RTOS):
Mmepe sọftụwia ahụ na-eji sistemụ arụmọrụ na-arụ ọrụ yana ọrụ ọbá akwụkwọ ọkachamara siri ike, yana dabere na ụdị mmemme nke ihe aga-eme kwa ụbọchị, ma na-arụ oke akụrụngwa, nhazi oge ọrụ, njikwa ewepu na ọrụ ndị ọzọ dabere na ọnọdụ ọrụ kacha mkpa.Ọ na-arụ ọrụ nke ọma ma nwee ike iji arụ ọrụ nke ndị na-arụ ọrụ mgbaama dijitalụ na microprocessors.Asụsụ kọmputa na-akọwa na-adị ngwa ngwa iji mejuputa ya, nwee ike ịgụ ya nke ọma, ọ dịkwa mfe ịgbasa na mbugharị ya.
2. Usoro nzikọrịta ozi MODBUS ọkọlọtọ:
A nakweere ụkpụrụ nkwukọrịta MODBUS ọkọlọtọ iji kwado ohere ịnweta sistemu akpaaka agbakwunyere ọkọlọtọ dị iche iche.A na-ahọrọ microprocessor nhazi nzikọrịta ozi dị iche iji kwalite ike nhazi nkwukọrịta yana ọsọ nzikọrịta ozi.
Mgbe emechara ngwaọrụ ahụ, enwere ike iweghachi ya n'ebe dị anya.
3. Iji DSP dị elu:
Akụkụ nlele na ngụkọ na-ahọrọ mgbawa TMS320F2812DSP nke ụlọ ọrụ TI.Ugboro dị elu ruo 150MHz.
Dị ka mmemme kọmputa si kwuo, mgbaàmà analog anakọtara na ozugbo nwere ike gbanwee ngwa ngwa Fourier n'ime oge dị mkpirikpi, enwere ike nweta ma tụọ pulse ugbu a ozugbo.
4.14-bit multi-channel n'otu oge nlere anya dijitalụ-na-analog ntụgharị:
N'ihi na a chọrọ ka sistemụ ahụ nwee izi ezi nlele, AD na-ahọrọ 14 bits.Enwere ọwa 8 na mkpokọta.Ogidi ọwa anọ ọ bụla na-eji mgbasa ozi n'otu oge iji kwalite izi ezi nke ojiji.CLK dịpụrụ adịpụ nke AD bụ 16M, si otú a na-ahụ na nlele 64-point na ngụkọ chọrọ nke okirikiri ọ bụla nke nlele anyị.
5. Iji ngwa mgbagha nwere ike ime mmemme:
Ọrụ nke ngwaọrụ ọdịnala na-etinye uche na otu mgbawa, nke na-ebelata mpaghara mkpụrụ na ọnụ ọgụgụ nke pads, na-ebelata ogologo ụgbọ ala, na-eme ka ọrụ mgbochi mgbochi na ntụkwasị obi sekit, ma na-eme mgbanwe n'otu oge ahụ.
Ngwanrọ sistemụ niile na-eji ATERA EPM7128 abụọ dịka akụkụ nke mgbagha dijitalụ.Enwere ike ịmegharị mgbawa a, nke nwere ọnụ ụzọ 2500 na sel 128 macro, nke nwere ike imezu ihe achọrọ nke mgbagha mgbagwoju anya.Ngwa nke ic jikọtara ọnụ na-ebelata ọnụ ọgụgụ nke ngwaọrụ mgbagha nke onwe ha chọrọ site na usoro dijitalụ, na-eme ka ntụkwasị obi na nchekwa nke usoro ahụ dịkwuo mma.
6. Ọrụ ndekọ mmejọ:
Onye na-edekọ ihe na-ezighị ezi nwere ike ịdekọ ụdị ebili mmiri 8 na usoro cyclical, gụnyere aka ekpe na aka nri atọ voltaji, zero-usoro voltaji, efu usoro nke ugbu a, atọ-phase AC contactor na sekit breaker tupu na mgbe mmejọ mere.
7.The mmadụ-igwe interface adopts a nnukwu mmiri mmiri kristal ngosi na zuru Chinese menu na-egosipụta ugbu a steeti ukwu na a graphical n'ụzọ, ezigbo oge na kensinammuo atọ voltaji uru, efu-phase voltaji uru, na efu-phase ugbu a. uru.
Isi atụmatụ nke ngwaọrụ
1. The edinam ọsọ nke ngwaọrụ bụ ngwa ngwa, na ọ nwere ike ime ngwa ngwa n'ime 30 ~ 40ms, nke ukwuu shortens oge nke otu-adọ grounding arc;
2. Enwere ike imenyụ arc ozugbo mgbe ngwaọrụ ahụ na-arụ ọrụ, na arc grounding overvoltage nwere ike ịbelata nke ọma n'ime oke voltaji akara;
3. Mgbe ngwaọrụ na-arụ ọrụ, kwe ka capacitive ugbu a nke usoro na-aga n'ihu na-aga n'ihu ma ọ dịkarịa ala 2 awa, na onye ọrụ nwere ike na-emeso na-ezighị ezi akara mgbe emecha mgbanwe ọrụ nke na-ebufe ibu;
4. Ọrụ nchebe nke ngwaọrụ adịghị emetụta ọnụ ọgụgụ na ọnọdụ ọrụ nke grid ike;
5. Ngwaọrụ nwere arụmọrụ ọnụ ahịa dị elu na-arụ ọrụ, na ihe ntụgharị voltaji n'ime ya nwere ike inye akara voltaji maka metering na nchebe, dochie ndị dike PTA ndị nkịtị;
6. A na-eji ngwaọrụ a na-eji obere nhọrọ akara ala dị ugbu a, nke nwere ike imeziwanye ihe ziri ezi nke nhọrọ ahịrị site na iji njirimara nke nnukwu ngbanwe nke usoro efu nke ugbu a na-ezighị ezi tupu na mgbe arc ahụ kwụsịrị.
7. The ngwaọrụ adopts Nchikota mgbochi saturation voltaji transformer na pụrụ iche isi ugbu a-mmachi resonance eliminator, nke nwere ike fundamentally kwụsị ferromagnetic resonance na n'ụzọ dị irè na-echebe stares;
8. Ngwaọrụ nwere ọrụ nke arc light grounding njehie ebili mmiri, na-enye data maka ndị ọrụ iji nyochaa ihe mberede.
Ihe ndị bụ isi nke ngwaọrụ na njirimara ha:
1. High-voltage agụụ ngwa ngwa contactor JZ na-adọ nkewa akara;
Nke a bụ AC ngwa ngwa agụụ contactor nke ụlọ ọrụ anyị mepụtara nke nwere ike ịchịkwa site na nkewa nkewa, yana enwere ike itinye ya n'ọrụ iche na 8 ~ 12ms.Ejikọtara otu njedebe nke onye na-ahụ maka agụụ agụụ na bọs, na njedebe nke ọzọ na-agbada ozugbo.N'oge ọrụ nkịtị, JZ na-emeghe ma mechie n'okpuru njikwa microcomputer.A na-akpọchikwa sekit ike arụ ọrụ nke ndị na-ahụ maka agụụ agụụ nke oge ọ bụla.Mgbe usoro ọ bụla mechiri ngwaọrụ mgbada ụgbọ ala ya, akụkụ abụọ nke ọzọ agaghịkwa arụ ọrụ.
Ọrụ nke JZ bụ ichebe akụrụngwa sistemu site na mmetụta nke overvoltage site na ibufe ngwa ngwa site na mgbada arc na-akwụghị ọtọ gaa na ngwunye ọla kwụ ọtọ mgbe arcing grounding na-eme na sistemụ.
2. HYT nnukwu oghere gbawara-àmà mmezi-free overvoltage nche;
HYT nnukwu ihe mgbawa na-egosi na nchekwa na-enweghị oke ọkụ na-eme iji gbochie oke ọkụ nke sistem.Ọ dị iche na nhazi nke zinc oxide arrester (MOA) ma nwee uru ndị a:
(1) Ọnụ ọgụgụ buru ibu na oke ngwa ngwa;
(2) Usoro njikọ kpakpando anọ nwere ike ibelata oke ngbanwe nke oge na-aga n'ihu ma melite ntụkwasị obi nke nchebe nke ukwuu;
(3) Ihe dị elu nke zinc oxide na-abụghị linear resistor na oghere mgbapụta na-echebe ibe ya.Ọdịiche nke nkwụsị na-eme ka ọnụego nchaji nke ZnO na-abụghị nke na-eguzogide zero, nkwụsị nke ZnO na-adịghị na-eme ka ọ ghara ịda mbà, àgwà ndị na-adịghị ahụkebe nke ZnO na-abụghị nke nkwụghachi azụ adịghị alaghachi azụ mgbe a gbanyere oghere nkwụsị, na oghere mwepu anaghị arụ ọrụ nke mkpochapụ arc, na ndụ ngwaahịa na-akawanye mma
(4) Index nke voltaji na-arị elu bụ 1, na chaja na mwepu voltaji bụ otu n'okpuru ụdị voltaji dị iche iche, ọ gaghị emetụtakwa ụdị dị iche iche na-arụ ọrụ overvoltage.Uru nchekwa oke voltaji zuru oke yana ezigbo ọrụ nchekwa
(5) Ọnụ ahịa ozugbo nke ụgwọ na nkwụsị dị nso na voltaji fọdụrụnụ, ọ dịghịkwa ihe ọ bụla na-egbutu, nke bara uru iji chebe mkpuchi mkpuchi nke akụrụngwa ikuku.
(6) Ọdịdị ahụ dị mfe ma doo anya, olu dị ntakịrị, na ntinye dị mma;
Nnukwu ihe mgbawa oghere na-egosi na nchekwa enweghị oke ọkụ bụ nke mbụ n'ụdị ya na-amachi oke ọkụ n'ụdị niile.Tupu AC contactor JZ adịghị arụ ọrụ, oke voltaji dị n'ime oke nchekwa.
3. HYXQ bụ isi ugbu a na-egbochi mkpochapụ harmonic:
HYXQ bụ ngwaahịa mepụtara nke ụlọ ọrụ anyị.A na-etinye ya n'usoro n'etiti isi ihe na-anọpụ iche nke ihe ngbanwe voltaji na ala iji gbochie ferromagnetic usoro resonance nke ihe ngbanwe voltaji ma melite ihe nchekwa nke ọrụ grid ike.
Na ọrụ nkịtị, nguzogide bụ ihe dịka 40kΩ, na nguzogide nke isi ikuku nke PT bụ ọkwa megohm, n'ihi ya, ọ gaghị emetụta ọrụ dị iche iche nke PT, ọ gaghịkwa agbanwe oke dị iche iche nke usoro ahụ.Mgbe PT resonates, ígwè isi na-ejupụta, mkpali ugbu a nke isi winding na-abawanye, na MQYXQ na-eguzogide na-abawanye ngwa ngwa, nke nwere ike na-egwu ọma damping mmetụta.
HYXQ nwere usoro dị mfe na nke doro anya, ịdị arọ dị arọ, ntinye dị mma na ọrụ a pụrụ ịdabere na ya.Ọ nwere ike ịnọgide na-enwe na-aga n'ihu na ngwa ngwa usu mkpochapụ ugbu a;ka ukwuu nke usoro resonance overvoltage, nkenke usu ugbu a ikpochapụ oge;Ngwaahịa a nwere ike belata mmụba mberede nke mkpali ugbu a nke ikuku mbụ nke ihe ngbanwe voltaji, ma zere nke ugbu a sitere na ikuku mbụ nke ihe ntụgharị voltaji.N'ihi ya, ike nke kinetic nke eriri sekit ezughị iji gbanyụọ arc ahụ mgbe ejiri eriri sekit jikọtara ya, na-ebute ihe mberede nchekwa nchekwa obere oge nke ụgbọ ala ụgbọ ala.
4. Microcomputer njikwa ZK:
ZK bụ isi njikwa akụrụngwa a.Ọ na-ekpebi ebe mmejọ na ụdị mmejọ (nkwụsị mgbanwe mgbanwe mgbanwe, mgbado igwe na arc grounding) dabere na akara Ua, Ub, Uc, na U nke igwe ngbanwe voltaji na-enye, ma na-ejikwa kọntaktị ikuku voltaji dị elu n'ụdị edoziri. Ngwaọrụ JZ.
Enwere ike ijikọ mmechi nwa mgbei na nhọrọ ahịrị iji nweta ebumnuche nke nchikota agafeghị oke n'etiti nhọrọ ahịrị na nhọrọ ahịrị.
5. High voltaji ugbu a ịmachi FU:
FU bụ nchekwa nchekwa maka akụrụngwa niile, nke nwere ike zere nsogbu nke ọdịda mkpirisi agba agba abụọ kpatara site na wiwi na-ezighi ezi ma ọ bụ njehie arụ ọrụ.O nwere njirimara ndị a:
(1) Nnukwu ike ịgbaji, ruo 63KA;
(2) Mgbasa ngwa ngwa ngwa ngwa, oge nkwụsị nke sekit bụ 1 ~ 2ms;
(3) Mmachi dị ugbu a dị mfe iji, yana mmejọ nke ugbu a nwere ike ịbụ ihe na-erughị 1/5 nke mkpali mkpirisi mkpirisi dị ugbu a;
6. Pụrụ iche voltaji transformer PT na inyeaka sekondiri winding:
Ngwaọrụ na-eji ihe ngbanwe voltaji na-egbochi saturation pụrụ iche.E jiri ya tụnyere ndị na-agbanwe voltaji nkịtị, ọ bụghị naanị na ọ nwere ike ịnye akara voltaji kwụsiri ike maka nha na njikwa sistemu, kamakwa chebe onwe ya pụọ na ihe ọghọm dị ka mmebi ihe ngbanwe voltaji na ike ọgwụgwụ nke sistemu na-abụghị nke resonance kpatara.
Oge nzipu: Eprel-12-2023