描述
矢量控制變頻調(diào)速的做法是將異步電動(dòng)機(jī)在三相坐標(biāo)系下的定子電流Ia、Ib、Ic、通過(guò)三相-二相變換,等效成兩相靜止坐標(biāo)系下的交流電流Ia1Ib1,再通過(guò)按轉(zhuǎn)子磁場(chǎng)定向旋轉(zhuǎn)變換,等效成同步旋轉(zhuǎn)坐標(biāo)系下的直流電流Im1、It1(Im1相當(dāng)于直流電動(dòng)機(jī)的勵(lì)磁電流;It1相當(dāng)于與轉(zhuǎn)矩成正比的電樞電流),然后模仿直流電動(dòng)機(jī)的控制方法,求得直流電動(dòng)機(jī)的控制量,經(jīng)過(guò)相應(yīng)的坐標(biāo)反變換,實(shí)現(xiàn)對(duì)異步電動(dòng)機(jī)的控制。其實(shí)質(zhì)是將交流電動(dòng)機(jī)等效為直流電動(dòng)機(jī),分別對(duì)速度,磁場(chǎng)兩個(gè)分量進(jìn)行獨(dú)立控制。通過(guò)控制轉(zhuǎn)子磁鏈,然后分解定子電流而獲得轉(zhuǎn)矩和磁場(chǎng)兩個(gè)分量,經(jīng)坐標(biāo)變換,實(shí)現(xiàn)正交或解耦控制。矢量控制方法的提出具有劃時(shí)代的意義。然而在實(shí)際應(yīng)用中,由于轉(zhuǎn)子磁鏈難以準(zhǔn)確觀測(cè),系統(tǒng)特性受電動(dòng)機(jī)參數(shù)的影響較大,且在等效直流電動(dòng)機(jī)控制過(guò)程中所用矢量旋轉(zhuǎn)變換較復(fù)雜,使得實(shí)際的控制效果難以達(dá)到理想分析的結(jié)果。?1985年,德國(guó)魯爾大學(xué)的DePenbrock教授首次提出了直接轉(zhuǎn)矩控制變頻技術(shù)。該技術(shù)在很大程度上解決了上述矢量控制的不足,并以新穎的控制思想、簡(jiǎn)潔明了的系統(tǒng)結(jié)構(gòu)、優(yōu)良的動(dòng)靜態(tài)性能得到了迅速發(fā)展。目前,該技術(shù)已成功地應(yīng)用在電力機(jī)車(chē)牽引的大功率交流傳動(dòng)上。直接轉(zhuǎn)矩控制直接在定子坐標(biāo)系下分析交流電動(dòng)機(jī)的數(shù)學(xué)模型,控制電動(dòng)機(jī)的磁鏈和轉(zhuǎn)矩。它不需要將交流電動(dòng)機(jī)等效為直流電動(dòng)機(jī),因而省去了矢量旋轉(zhuǎn)變換中的許多復(fù)雜計(jì)算;它不需要模仿直流電動(dòng)機(jī)的控制,也不需要為解耦而簡(jiǎn)化交流電動(dòng)機(jī)的數(shù)學(xué)模型。
產(chǎn)品承諾:
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主營(yíng)DCS系統(tǒng)配件
機(jī)器人系統(tǒng)配件
大型伺服系統(tǒng)配件
品牌:ABB???,AB??,GE,FOXBORO,本特利,英維思,伍德沃德,西屋,瑞恩,施耐德,西門(mén)子,摩托羅拉,安川。力士樂(lè)。ACSO,橫河等進(jìn)口品牌。 專(zhuān)業(yè)銷(xiāo)售進(jìn)口DCS? PLC系統(tǒng)備件模塊
Triconex?Siemens?Yaskawa?ABB?GE?Ovation?AB?Foxboro?Motorola?Schneider?XYCOM?KUKA ? 專(zhuān)業(yè)銷(xiāo)售進(jìn)口DCS? PLC系統(tǒng)備件模塊 15天包退換 一年質(zhì)保 大量現(xiàn)貨? 國(guó)內(nèi)實(shí)力庫(kù)存商家
Syntron system processor 07-105416 rev. B.1
Syntron 24Bit data collector 07-305010 Rev. C
Marconi S.P.A. communication system
Canon BG6-0476 BH4-0515-02 use on canon PLA
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british telecommunicati?ons Plc SCA058 dual processor
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Jetter Delta CPU D-CPU H. Rev. V4.01
Parker daedal stage 4″ x 4″ M4955-04-L
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Marconi instruments digital communication analyzer 2851
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HP/Agilent 16192A parallel electrode SMD test fixture
Hyamp II 5030DT gound bond tester ver 1.60
Yaskawa servopack CACR-HR10BAB
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Varian Turbo-V 250 Macro Torr 9699008S016
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Western multiplex 35000-A2 2453/2410 MHz
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Fuji FRENIC-Multi FRN5.5E1S-2CP1
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(TD1) Mitsubishi AC servo motor HC-SFS153K 1.5kW
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Mitsubishi AC servo motor HC-SFS153K 1.5kW
Fuji FRENIC-Multi FRN5.5E1S-2CP3
KLA Tencor PZT controller 710-404582-00
HP 21440A 7.5/5
KLA 710-404420-00
Yaskawa servopack CPCR-SWA6A -Y5
Cognex NotchMax IS5100 IS5100-NMAX-KT0?0
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VMIVME 7487A CPU BD. Opal 70512526000
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VAS600-03-112
MDUT 1001-9974/02
BAC P/N: 1001-8128/02 card
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Lumonics LUXSTAR LX30(LP)
Oxford microanalysis 1128-336 with 1128-342
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ASM board 03-28340 Rev. E
Neat Z axis stage
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Shimadzu SBC 8601 CPU assy 306-00709K board 306-00711E
Shimadzu SBC 8601 board 202-59845-05 NEW
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ETEL DSCDH DSDH153-121C-00?1D 1045E-040-01H
Bruel & Kjaer 2635 Charge Amplifier
Sew eurodrive MOVI-PLC DHE41B / UOH11B
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Spannhals motor typ 6901E
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Canon BG9-4758 BG8-3109 BH8-1070-02 SC/RC
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Canon BG9-4760 BG8-3111 BH8-1071-02 SH/RH
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Hirata HNC-C580 HNC-C580-1 Base-robot controller
Ericsson ROJ 207 009/1 R3B CPU-60/C6
Mikrotron M276 B rev. 2 DC: 4095 CD.: pf
DISCO LLIGHT REV.2 SNR.76
Mikrotron M276 B Rev. 2 DC:2397 CD.: RS
Disco light rev.2 SNR.138
OGP VME lighting control 034351 Rev. C
Spectra-Physics 0129-9535-23S
Zygo 7005 + Retroreflector + base (lot of 2)
Lam research 810-17030-005 rev. 5
ILX lightwave LDX-3525 precision current source
ASM HPD 50C servo driver card
Silicon graphics 013-2978-001 Rev C & 030-1423-002
Mitsubishi AOJ2CPUP23 & AOJ2-E56DT
HP laser head 5517B cable and power supply 300uW
Spectra-Physics 0129-7082-23S
Siemens SD EA feeder center controller P/N: 000731016
Applied materials heater/suscepto?r leveling system
Mitsubishi AOJ2HCPU & AOJ2-E28DT & AOJ2-E56DT
Siemens 115U CPU 941B 6ES5 941-7UB11
Matsushita NAiS CPU MEWNET-H Link A/D converter FP3 PLC
Berger Lahr positec D900.50 Erz.Nr. 62010900503 Rev. 06
Matsushita NAiS CPU MEWNET-H Link A/D D/A IN64 FP3 PLC
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Omron NT31C-ST141B-EV?2
Keyence RD-50R and AT3-400 (2 sets)
Renishaw signum interface A-9572-1050-04
Canon TEMP-PS GG0-0396
Teledyne analytical instruments 3290 software ver: V1.5
TEL TVB6004-1 QMC3
Honeywell 9100e controller 9010-016C VR3.3
ASM BH driver 02-85659 rev. C P01-D00531A-854?16 rev. A
Sciex signal handling module 022184
Rofin Sinar Shutter A.Nr. 3040320
Sumitomo HUP-A VA765178BC VA765177BX
Audio signal normalization & filtering CS241 ED2 TAUT.6
PWB-A254-B board
HP/Agilent 16194A high temperature component fixture
Omron CV500-IC101
Sharp JW-21P JW-21CU (+JW-21MA) JW-214N JW-212S PLC
Ampere marco 6020A M-6020A PCB-308C
Sanyo SVME-CPU
EPSON SKP298-1 SCC Board
Lam research 810-15987-001 rev.B TCP AUTOTUNE BD
Olympus LCAch 20x/0.40 Phc ∞/1
KEP Kessler ellis MMI-850 touch screen display
UniOP ECT-16-0045 OPERATOR INTERFACE COLOR TOUCHSCREEN
Motorola MVME 147-011 64-W5892B01B 858-7567-02
Siemens 6ES5 304-3UB11 6ES5304-3UB11
Siemens S32011-Q130-X10?1-1 TIF
H# HP 75000 series C E1467A E1466-66202
Mitsubishi A2NCPU-UL with A3NMCA4-UL
Shimadzu tarobe assy 206-14943H board 206-14945H
BriskHeat CENTOPI-1
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Anritsu radiation test signal generator MG318A
Novellus 03-056640-00 & PAC-SDD-02A-V2.?0 & DAQCard-700
ASM SG-50 01-89742 Rev. F
Matrox 521-02 comet with CMT/RGB/MODULE
Motorola MVME 147-010 64-W5892B01B REV B
S30861-Q4155-X-?04/01 UEB/T0144599 DRIC12-12FV1
Heidenhain ND 281 Id.Nr. 283 481 11
Fuji film assy 7521-8890 03 PN 7521-8900 01
use on Fuji film CELSIS 6250 model 75489830A2
Fuji film assy 7501-4990 PN 7523-9960 00A servo control
use on Fuji film CELSIS 6250 model 75489830A2
Memory focus 7542-0000 00 PN 7542-0010 00
use on Fuji film CELSIS 6250 model 75489830A2
Denso uVision-21 VC21-P
Millipore AC212A Lam research P/N: 796-006238-012
H# Olympus PM-30 model: PM-CB30-3
H# Agilent E1485C 75000 series C signal processor
Omron 3G8B2-Z8030 Z8030
ASM 02-82735 Rev. A BHD-E6005-085
HV# Mitsubishi A1SHCPU A1SX41 A1SY41 A1SJ71UC24-R2 PLC
Canon CAS-CS GG0-1653
Canon HUB unit GG0-3015
Canon OLS-CS GG0-0875
Siemens KN122-B2200-R96?3
Siemens K4011-B2200-R96?3
Canon BG6-0477 BH4-0516-03 use on canon PLA
Canon BG6-0289 BH4-0499-03 use on canon PLA
Canon BH4-0850-01 use on canon PLA
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Olympus SZ51 (no eyepiece)
NT PZT controller P/N 0011515-000 KLA 0059515-000
Conair LE650
Siemens A5E00329102
HV# Mitsubishi A2USHCPU-S1 A1SX42 A1SY42P A1SJ71UC24-R2
GaGe compuscope 250
GE Fanuc CPU module IC693CPU341V
H# Hitachi RVME450A RVME 450A
Mitutoyo KC-13 174-125
H# Tachibana tectron TVME1004B TVME 1004B
H# Schroff OE-CPU001-2
Mitsubishi A2USCPU A1SJ71LP21 A1SJ71UC24-R4 A1SX48Y58
Motorola MVME 147-022 64-W5892B01B rev. B
Mitsubishi melsec-Q Q64AD (3 units)
Siemens 6ES5524-3UA13 & 6ES5752-0AA22
Motorola MVME 147S-1 64-W5892B01B
NSK ESA M-ESA-JB015AF2-?11
Trek 601C 601C-1-H-CE-EX
Accura 7 automatic dispenser
Kensington 4000-60002 axis rev. V.1 (2 cards)
HP laser head 5517B cable and power supply 280uW
PCB board 92-005721-XXX Rev: E-04
Canon GG0-0873 FRA_OAS-CS
Canon GG0-0690 PO-CS
Camelot systems 12829B Rev. C P/N: 12828B
Camelot systems P/N: 12428B Rev. D
Omron CQM1-CPU45-EV1 CPU unit
Stratasys FDM Feed CPU board
Shimadzu CPU board 206-12679 NEW
Shimadzu assy 223-02336-90 board 223-02348C
Shimadzu WDC/CMTC assy 306-00971A board 306-00973A
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Shimadzu RF-CPU V02 206-60505-04 NEW
Lam research 810-15987-101 rev.B TCP AUTOTUNE BD
Lam research 810-15987-003 rev.B TCP AUTOTUNE BD
PLC模塊,可編程控制器,CPU模塊,IO模塊,AI模塊,通訊模塊。AB/施耐德/ABB/GE/本特利/西屋/英維斯/霍尼韋爾/黑馬/FU克斯波羅
15天包退換 一年質(zhì)保 大量現(xiàn)貨? 國(guó)內(nèi)實(shí)力庫(kù)存商家