Ụgbọ okporo ígwè maglev dị elu nke a na-arụ na Shanghai bụ ụgbọ oloko TR08 maglev si Germany na-ebubata, nke na-eji moto synchronous ogologo stator linear na usoro levitation conduction na-adị ugbu a. A na-egosi usoro inye ọkụ ọkụ traction ya na eserese 1, ma mejupụtara ihe ndị bụ isi dị ka ihe ngbanwe dị elu (110kv/20kv), ihe ntụgharị ntinye, ihe ntụgharị, ihe ntụgharị, na ihe ntụgharị mmepụta.
A na-atụgharị sistemu ọkụ ọkụ traction nke ụgbọ oloko maglev site na voltaji 110kv grid gaa na 20kv site na ngbanwe dị elu, wee tụgharịa gaa na voltaji DC nke ± 2500v site na ntụgharị ntinye na ntinye ntinye. A na-atụgharị voltaji DC sitere na njikọ DC n'ime ike AC nke atọ na-agbanwe ugboro ugboro (0 ~ 300Hz), njupụta njupụta (0 ~ × 4.3kv), na akụkụ a na-agbanwe agbanwe (0 ~ 360°) site na nkeji atọ. - ihe inverter.Ihe ntụgharị traction nke ụgbọ oloko maglev nwere ụdị ọrụ abụọ:
(1) The kpọmkwem mmepụta mode nke inverter pulse obosara modulation bụ mmepụta mode mgbe moto na-arụ ọrụ na a ala ugboro, na a mgbanwe ugboro nke 0 ~ 70Hz. N'oge a, a na-ejikọta ọnụọgụ abụọ nke ihe ntụgharị atọ dị n'otu n'otu, na mmepụta na-ejikọta ya site na isi ikuku nke ihe ntụgharị dị ka egosiri na Figure 1. myirịta itule reactor, ma na-arụkwa ọrụ nzacha.
(2) Ọnọdụ mmepụta ihe ntụgharị bụ ọnọdụ mmepụta mgbe moto na-arụ ọrụ n'ogo dị elu, na-agbanwe ugboro 30Hz ~ 300Hz. N'oge a, a na-ejikọta ọnụọgụ abụọ nke inverters na isi ihe ntụgharị traction n'usoro n'usoro n'akụkụ isi nke ihe ngbanwe, na mmepụta na-emepụta mgbe ihe mmepụta ihe na-ebuli voltaji.
EFD ngbanwe EI transformer Ihe ntụgharị PQ
3.1 Ntụgharị ntinye
Ogbo n'ihu nke ihe ngbanwe ntinye nwere ihe ngbanwe dị elu na ihe ngbanwe. Ihe ngbanwe ntinye nwere ihe ngbanwe abụọ rectifier, nke ọrụ ya bụ ibelata voltaji grid dị elu site na ntụgharị nke abụọ wee ziga ya na ntụgharị ntinye. Maka ndị na-eme mgbanwe mgbanwe dị elu nke nwere nnukwu ikike, iji mee ka nrụpụta ọrụ dị mma, a na-eji eriri abụọ nke 6-pulse rectifier mee ihe. Igwe ngbanwe nke ọ bụla na-arụ ọrụ na-arụ ọrụ site na usoro abụọ nke windings nke okpukpu atọ, otu y junction na otu d junction. Sistemụ ngbanwe nke static na-anabata atụmatụ nke atọ na-agbagharị agbagharị n'otu ụzọ atọ, bụ nke ejikọrọ na-etolite atụmatụ y/y, d group rectifier nke egosiri na eserese 2 site na njikọ ahaziri nke ikuku nke ọ bụla. Isi uru ya bụ:
(1) Obere ikike ikike, nke na-abawanye ụba;
(2) Obere otu ikike, dị mfe iji gboo ihe ndị njem chọrọ maka nha ngwaọrụ;
(3) Enwere ike ịhazi windings atọ ahụ n'otu kọlụm isi, nke na-enyere aka belata nhụsianya kwekọrọ nke onye ntụgharị.
Iji chịkwaa voltaji njikọ DC nke etiti sekit ma belata mkpali n'akụkụ grid, onye ọ bụla rectifier nke sistemu bụ nke nwere akwa mmiri isii na-achịkwa nke ọma na akwa mmiri na-emezigharị ụzọ isii na-achịkwa nke ọma. n'usoro, dị ka e gosiri na Figure 2. N'ụzọ dị otú a, a na-ejikọta usoro abụọ nke rectifiers n'usoro, na etiti etiti na-adabere na nguzogide dị elu (dị ka e gosiri na 1), na-eme ka njikọ DC dị n'etiti etiti atọ nwere ike. . A na-achịkwa voltaji nke njikọ DC, sitere na 2 × 1500V ruo 2 × 2500V, na akara ugbu a bụ 3200A. Iji nweta ihe dị mma DC ugbu a, a na-ejikọta reactor na-eme ka ọ dị nro na usoro na sekit etiti. N'otu oge ahụ, iji gbochie rectifier akwa na DC njikọ si overvoltage, DC n'akụkụ overvoltage nchedo nakweere. Na sekit etiti njikọ DC, enwere thyristors na ndị na-emegide ike dị elu nwere nchedo mwepu dị ka ngwaọrụ absorption DC n'akụkụ iji gbochie oke voltaji. Tụkwasị na nke ahụ, etiti etiti nke njikọ DC nke sekit nke etiti etiti na-adabere na nchebe dị elu ma nwee ihe ngosi nhụsianya ala.
3.2 traction inverter
(1) Ọdịdị ntụgharị
E gosipụtara usoro nke otu akụkụ na ntụgharị ụzọ atọ nke Shanghai Maglev Train na Figure 3. Isi tube na-anabata ngwaọrụ GTO zuru oke. Isi sekit na-anabata tubes isi abụọ n'usoro nwere diode na-amachi n'etiti etiti. A na-akpọkwa sekit a ihe ntụgharị ngbanwe nke isi atọ (ma ọ bụ ọkwa atọ dị n'etiti). Nke a nwere ike belata isi tube na-eguzogide voltaji site na ọkara. N'otu oge ahụ, n'okpuru otu mgbanwe ugboro na njikwa mode, harmonics nke ya mmepụta voltaji ma ọ bụ ugbu a bụ ihe na-erughị ndị nke abụọ-larịị, na nkịtị-mode voltaji eme site mmepụta voltaji na moto njedebe bụkwa obere. , nke bara uru ịgbatị ndụ ọrụ nke moto.
Isi tubes anọ nke ogwe aka akwa mmiri nke ọ bụla nwere ngwakọta atọ dị iche iche na-apụ apụ, na-arụpụta voltaji dị iche iche n'otu n'otu (lee Tebụl 1). Igwe ọkụ kachasị elu nke GTO bụ 4.5kV, na ọnụ ọgụgụ kachasị elu bụ 4.3ka. Ihe ntụgharị isi atọ chọrọ ka enweghị ike ịgbanye isi V1 na V4 n'otu oge, yana njikwa njikwa nke V1 na V3, V2 na V4 na-emegiderịta onwe ha. Na mgbakwunye, ntụgharị isi na-apụ apụ ga-agbasorịrị ụkpụrụ nke mbụ gbanyụọ wee gawa.
A na-emepụta ihe ntụgharị ọkwa atọ na ndabere nke ihe ntụgharị ọkwa abụọ. Iwebata teknụzụ njikwa tozuru oke nke inverter ọkwa abụọ n'ime ihe ntụgharị ọkwa atọ ewepụtala usoro njikwa mgbanwe dị iche iche. Ka ọ dị ugbu a, usoro njikwa ndị tozuru etozu ejiri maka ndị ntụgharị ọkwa atọ bụ: usoro njikwa pulse, nke elu na nke ala dual modulation wave SPWM njikwa, 120° conduction PWM akara usoro, 90° usoro staggered PWM akara usoro, na-anọpụ iche pụrụ iche iche. usoro nchịkwa PWM, ịgbanwee usoro njikwa PWM kacha mma, usoro mkpochapụ nke dị ala dị ala (SHEPWM), usoro njikwa vector voltaji oghere atọ (SVPWM) na ebe na-anọpụ iche nwere ike iwepụ voltaji ohere vector njikwa usoro [2,3 ].
(2) GTO mbanye sekit
sekit mbanye GTO dị elu ga-ebu ụzọ dozie nsogbu nke iche na mgbochi nnyonye anya. The trigger usu mgbaama nke GTO na isi traction inverter nke Shanghai Maglev Train na-ebunye site ngwa anya eriri USB, ya mere a na-edozi nsogbu nke iche na mgbochi nnyonye anya, si otú huu izi ezi nke GTO ịkpalite usu na udiozi n'ịhụ na ịnya ụgbọ ala nchekwa nke Maglev. Ọzụzụ. Na mgbakwunye, isi ihe na-egosi ma sekit mbanye GTO dị elu nwere ike ịrụ ọrụ na-adịkarị na ọkọnọ ike. Ngosipụta nke ọnụ ụzọ ámá GTO kwesịrị ịdị elu nke ọma, na ọnụ ụzọ ya kwesịrị ịdị elu, ebe nzọ ụkwụ kwesịrị ịdị nwayọọ. Iji mezuo ihe a chọrọ, ọkụ draịva nke GTO na isi traction inverter nke Maglev Train bụ 45V/27A, a na-ezigakwa akara ngosi ihu na akara voltaji nke GTO na-akpali usu na sistemụ njikwa. Na mgbakwunye, isi traction inverter nke Shanghai Maglev Train na-anakwere nchebe dị iche iche: oke oke nchekwa nke breeki sekit nke na-agbaji, oke nchebe nke ugbu a, nkwụsị usu na ịchọpụta mmejọ ala.
(3) sekit absorption
Enwere ọtụtụ sekit absorption nke GTO. The absorption sekit nke atọ-larịị isi traction inverter nke Shanghai Maglev Train e gosiri na Figure 3. The absorption circuit ga-hụ na di / dt na du / dt nke GTO adịghị gafere kpọmkwem ekwe ụkpụrụ mgbe ọ bụ. na-arụ ọrụ. N'ụzọ dị otú a, sekit absorption nke GTO ga-enwerịrị inductor na capacitor C. Na eserese 3, a na-ejikọta inductors L1, L2 na GTO n'usoro iji gbochie di / dt nke GTO. Diodes D11, D12, resistor R1 na inductor L1 na-etolite sekit ntọhapụ ike nke inductor n'onwe ya. A na-eji capacitors C11 na C12 na-amachi du / dt nke GTO, na diodes D12 na D13 na-etolite sekit ntọhapụ ike nke capacitor. E jiri ya tụnyere RCD absorption circuit, nke dị n'elu absorption sekit na-agbakwụnye nnukwu capacitor C12, ya mere mgbanyụ ọkụ absorption capacitor C11 bụ ọkara nke uru capacitance nke RCD absorption circuit, ya mere, ọnwụ na-ebelatakwa ọkara; N'otu oge ahụ, capacitor C12 na-arụ ọrụ nkedo voltaji, nke a na-eji ebelata nkwụsịtụ nke GTO. Maka onye ntụgharị 1500kva, mfu nke sekit absorption a bụ ihe dị ka nke sekit absorption nke asymmetric.
Ụdị ntụgharị ER Njikọ ụdị mgbanwe 5V-36V Ferrite Core Transformer
4 Nkwubi okwu
Sistemụ ọkọnọ ike traction nke ụgbọ oloko Maglev dị elu nke Shanghai nwere njirimara ndị a:
(1) Ọ adopts elu-ọsọ ot linear synchronous moto. A na-etinye usoro ọkụ ọkụ traction dum n'ala ma ọ bụghị nanị site na oghere nke ahụ ụgbọ ala, nke na-eme ka usoro ntinye ike nke atọ kachasị dị irè;
(2) Ọ adopts na-anọpụ iche ebe clamped atọ-larịị Ngbanwe technology adabara elu voltaji na elu oge, na-ezere kpọmkwem usoro njikọ nke GTO thyristors, nke mere na ike nke elu-ike eletriki ngwaọrụ nwere ike zuru ezu tinye n'ọrụ;
(3) A na-eji eriri abụọ na-agbanwe agbanwe nke 12-pulse rectifier bridges mee ihe na ntinye ntinye, nke ọ bụghị nanị na-ebelata harmonics na nnyonye anya, ma na-egbochikwa ntụgharị nke ike midpoint;
(4) Thyristors na GTO na-eji eriri eriri anya na-ebufe akara nrịbama, nke nwere nnukwu ọrụ mgbochi nnyonye anya. Igwe ọkụ na usoro njikwa traction bụ otu n'ime igodo iji chịkwaa ọrụ dị mma ma kwụsie ike nke ụgbọ oloko maglev. Ụkpụrụ ya na nhazi ya chọrọ nyocha na nyocha ọzọ.
Zhongshan XuanGe Electronics Co., Ltd bụ a emeputa ọkachamara na R&D, mmepụta na ahịa nkeelu na ala ugboro ngbanwe, inductorsnaIgwe ọkụ na-anya ụgbọ ala LED.
Ụlọ ọrụ ahụ sitere na Shenzhen, bụ isi mmalite nke mgbanwe na mmeghe nke China, ma guzobe ya na 2009. N'ime afọ ndị gafeworonụ, anyị na-aga n'ihu na-eto eto na ịzụlite. Site na 2024, anyị nwere ahụmịhe afọ 15 n'ịmepụta mgbanwe mgbanwe dị elu, yana ahụmịhe anyị ọkaibe emeela ka XuanGe Electronics nwee aha ọma n'ahịa ụlọ na nke mba ọzọ.
Anyị na-anabata iwu OEM na ODM. Ma ị na-ahọrọngwaahịa ọkọlọtọsite na katalọgụ anyị ma ọ bụ chọọ enyemaka nhazi, biko nweere onwe gị iji XuanGe kparịta mkpa ịzụ ahịa gị, ọnụahịa ahụ ga-eju gị afọ.
William (Onye isi ahịa ahịa)
186 8873 0868 (Whats app/We-Chat)
E-Mail: sales@xuangedz.com
liwei202305@gmail.com
Oge nzipu: Mee-30-2024