140XBP01000 传感器

.矢量控制(VC)方式

矢量控制变频调速的做法是将异步电动机在三相坐标系下的定子电流Ia、Ib、Ic、通过三相－二相变换，等效成两相静止坐标系下的交流电流Ia1Ib1，再通过按转子磁场定向旋转变换，等效成同步旋转坐标系下的直流电流Im1、It1(Im1相当于直流电动机的励磁电流；It1相当于与转矩成正比的电枢电流)，然后模仿直流电动机的控制方法，求得直流电动机的控制量，经过相应的坐标反变换，实现对异步电动机的控制。其实质是将交流电动机等效为直流电动机，分别对速度，磁场两个分量进行独立控制。通过控制转子磁链，然后分解定子电流而获得转矩和磁场两个分量，经坐标变换，实现正交或解耦控制。矢量控制方法的提出具有划时代的意义。然而在实际应用中，由于转子磁链难以准确观测，系统特性受电动机参数的影响较大，且在等效直流电动机控制过程中所用矢量旋转变换较复杂，使得实际的控制效果难以达到理想分析的结果。

4.直接转矩控制(DTC)方式

1985年，德国鲁尔大学的DePenbrock教授提出了直接转矩控制变频技术。该技术在很大程度上解决了上述矢量控制的不足，并以新颖的控制思想、简洁明了的系统结构、优良的动静态性能得到了迅速发展。该技术已成功地应用在电力机车牵引的大功率交流传动上。 直接转矩控制直接在定子坐标系下分析交流电动机的数学模型，控制电动机的磁链和转矩。它不需要将交流电动机等效为直流电动机，因而省去了矢量旋转变换中的许多复杂计算；它不需要模仿直流电动机的控制，也不需要为解耦而简化交流电动机的数学模型。

5.矩阵式交-交控制方式

VVVF变频、矢量控制变频、直接转矩控制变频都是交?直?交变频中的一种。其共同缺点是输入功率因数低，谐波电流大，直流电路需要大的储能电容，再生能量又不能反馈回电网，即不能进行四象限运行。为此，矩阵式交-交变频应运而生。由于矩阵式交?交变频省去了中间直流环节，从而省去了体积大、价格贵的电解电容。它能实现功率因数为l，输入电流为正弦且能四象限运行，系统的功率密度大。该技术虽尚未成熟，但仍吸引着众多的学者深入研究。其实质不是间接的控制电流、磁链等量，而是把转矩直接作为被控制量来实现的。

VEXTA BRUSHLESS DC MOTOR BLFM5120-GFS S/ GFS5G200 GEAR HEAD

Vexta Brushless DC Motor BL550A-24AF 3000 RPM 50W 50 W Watt 

VEXTA BRUSHLESS DC MOTOR BL430GD-AF & GEARHEAD 4GD20K w/ DRIVER BLD30A-F

VEXTA BRUSHLESS DC MOTOR BL215GD-AF 15W 3000RPM BL215GDAF

Vexta Brushless DC Motor 30 W mit Getriebe 5:1 und Driver BLFD30C2

Vexta Brushless DC Motor 2000-RPM 25W HBLM425K-GN Oriental Motor Gear Head

VEXTA BRUSHLESS DC MOTOR & GEAR HEAD BL215GD-AF 2GD200K 3,000R/MIN FREE SHIPPING

Vexta Brushless DC Motor # BXM230M-GFS 30w Output Rated Speed 3000r/min

VEXTA BLS540A-24LA  BLS540A24LA

VEXTA BLO60A-MK BRUSHLESS DC MOTOR DRIVER, NIB

VEXTA BLHM450KC-GFS  BLHM450KCGFS

VEXTA BLFM5120-GFS BRUSHLESS DC MOTOR WITH GFS5G30 GEARHEAD 30:1 RATIO

Vexta BLFM5120-GFS 120 Watt, 1/6 HP, 10:1 Gear Ratio DC Motor + Gear Head (!)

VEXTA BLFD30A2 Brushless DC Motor Driver

VEXTA BLFD200C2 Brushless DC Motor Driver

Vexta BLFD200A2 Brushless Motor Drive, 100-120V 4.7A In, 0-240V 0-333Hz Out

VEXTA BLD30A-F  BLD30AF

VEXTA BLD120A-MK BRUSHLESS DC MOTOR DRIVER

Vexta BLD11524-F Brushless DC Motor Driver, BL215GD-24F Motor, 2GD5K Gearhead

VEXTA BL550GD-24F  BL550GD24F

VEXTA BL550GD-24F 5GD20K Brushless DC Motor OrientalT9 01257

Vexta BL215GD-24F Brushless DC Motor w/ Connector

Vexta BKBL AC Servo Driver  Working

Vexta AXUM590-GU Brushless DC Motor w/ Oriental Motor 5GU30KA (30:1) Gearhead

VEXTA AXUM540-GN  AXUM540GN

Vexta AXUM540-GN | Tested with 12 month warranty

Vexta AXUD90A | Tested with 12 month warranty

VEXTA AXHM5100KC-GFH  AXHM5100KCGFH

VEXTA AXHM5100KC-A DC BRUSHLESS MOTOR W/STIRRING MECHANISM

VEXTA AXHM5100K-15  AXHM5100K15

VEXTA AXHM230KC-GFH  AXHM230KCGFH

Vexta AXHM230KC-GFH Brushless DC Motor w/ GFH2G200 Gearhead AXHD30K driver

Vexta AXHM015K-50 Brushless DC Gearhead 15W 50:1 Ratio 6mm Shaft

Vexta AXH230KC-20, Brushless Motor, Gear, GFH2G-20, Drive AXHD30K

VEXTA ASM98MA-N10  ASM98MAN10

VEXTA ASM98AC-N-7.2  ASM98ACN72

VEXTA ASM66MC-T30 Closed Loop Step Motor

VEXTA ASM66MA-T7.2 Gearhead Controller BAS Cable 24VDC Oriental Motor

VEXTA ASM66AC-H50  ASM66ACH50

VEXTA ASM66ACE-T30 Stepping Motor & Gear

Vexta ASM66AC Stepper Motor w/ Alpha 10:1 Planetary Reducer

VEXTA ASM66AA-N36 Closed Loop Step Motor

Vexta ASD36B-K AlphaStep Closed Loop Driver

VEXTA ASD36A-K  ASD36AK

VEXTA ASD30E-A-B1  ASD30EAB1

VEXTA ASD30A-A  ASD30AA

Vexta ASD30A-A Drive

Vexta ASD24C-AP

VEXTA ASD24B-A VEXTA Motor ORIENTAL Driver

Vexta ASD24B-A Servo Drive "Warranty"

Vexta ASD24A-A Servo Driver Module with Cable

VEXTA ASD24A-A AlphaStep Closed Loop Driver

VEXTA ASD20A-S  ASD20AS

VEXTA ASD16D-CDN  ASD16DCDN

Vexta ASD13A-AP Stepper Motor Closed Loop Driver w/ Vexta ASM46AA Stepper Motor

VEXTA ASD13A-ADN  ASD13AADN

Vexta ASD13A-A Closed Loop Driver - Oriental Motor Company

Vexta ASD12C-C Stepper Drive

VEXTA ASD12A-CP  ASD12ACP

VEXTA ASD12A-C/200-230V DRIVER ASD12A-C 5 Oriental Motors

Vexta ASD12A-C Oriental Motor Drive ASD-C Stepper Driver With Cable / Warranty

VEXTA ASD10A-KDN  ASD10AKDN

VEXTA ASC66A-K  ASC66AK

VEXTA ASC66A-K  ASC66AK

VEXTA AS46AA-N7.2  AS46AAN72

Vexta Alphastep Stepper ASM36AK Closed Loop Stepping Motor Alpha Step /Belt Gear

VEXTA ALPHASTEP CLOSED LOOP STEP MOTOR ASM911 DC 38.2V 2 month warranty

VEXTA AIM5150CM-P5  AIM5150CMP5

VEXTA AID40A-A2  AID40AA2

Vexta Advantest Schrittmotorkarte für 6 Schrittmotoren 5-Fasen

Vexta Advantest Schrittmotorkarte für 5 Schrittmotoren 5-Fasen

Vexta Advantest Schrittmotorkarte für 4 Schrittmotoren 5-Fasen

VEXTA AC SERVO MOTOR KXSMZ40H61-BC W GEAR HEAD CABLES

Vexta AC Servo Motor KXSM250-BL KXSM250BL 3000r/min 

VEXTA AC SERVO MOTOR KXSM240HG1-BL 40W 3000R/MIN KXSM240HG1BL - 

Vexta AC Servo Motor BXM5120-GFH2 120watt 3000rpm w/ GFH5G50 Gear Head

Vexta AC Servo Motor & Drive KBLM6180-A

VEXTA AC SERVO EXD80-ALZ EXD80ALZ

Vexta AC Servo Driver ASD24A-A w/ Cable ++ NICE ++

VEXTA AK DC STEPPING MOTOR 2 PHASE 1.8º STEP 0.27Ω

Vexta APhase Stepping Motor

VEXTA A& GEAR HEAD ORIENTAL MOTORS H0048-143

VEXTA A4691-046  A4691046

VEXTA AGME  A45649215GME

VEXTA AK STEPPING MOTOR 2-PHASE 1.8/STEP FROM BECKMAN BIOMEK 2000

VEXTA AKM  A44839215KM

VEXTA AKSG  A44539215KSG

VEXTA AE  A42769115E

VEXTA AHG / UHG100-2B Stepper Motor w/Harmonic Gear Reduction Unit

VEXTA A  A37889412

Vexta AVDC Stepping Motor 4 Amp A.8 Degree 2 Phase

VEXTA A  A34099212

VEXTA A  A25959212

VEXTA A  A20719212

Vexta A193201 Motor PK243M-01BA  Working

VEXTA 6GK5K  6GK5K

VEXTA 6GK5K  6GK5K

VEXTA 5RK90GU-AWMU  5RK90GUAWMU

VEXTA 5RK40RA-AW  5RK40RAAW

VEXTA 5RK40GN-AUL  5RK40GNAUL

VEXTA 5RK40GN-AMUL  5RK40GNAMUL

VEXTA 5RK40GN-AMUL  5RK40GNAMUL

VEXTA 5RK40GN-AM-115  5RK40GNAM115

VEXTA 5RK40GN-AM-115  5RK40GNAM115

VEXTA 5RK40GK-AA  5RK40GKAA

Vexta 5-Phase Stepping Motor, Model # PK569AUA

Vexta 5-phase Stepping Motor, AKHGE, , Sealed & Boxed

VEXTA 5-PHASE STEPPING MOTOR UPH599-B2

VEXTA 5-Phase Stepping Motor PK566NBWA + USDigital EncoderA124

Vexta 5-phase Stepping Motor PK566AUA 0.72°/step

Vexta 5-Phase Stepping motor PH569M-NAA +Driver UDx5114NA

Vexta 5-Phase Stepping motor PH566M-NBA +Driver UDx5114NA

VEXTA 5-PHASE STEPPING MOTOR MODEL PK564AW-T10

Vexta 5-Phase Stepping Motor A

Vexta 5-Phase Stepping Motor

VEXTA 5PHASE STEPPER STEPPING MOTOR 0.72° STEP W/CLEAN DAMPER PK564BUA(S22-1-59D

Vexta 5-Phase PH533-NB Stepping Motor csd533-nbpa double shaft 0.72°, 0.75A DC

Vexta 5-Phase Driver, DC24V +-10%, 1.1A

Vexta 5-Phase Driver UDK5128N, 50/60 Hz

Vexta 5-Phase Driver UDK5128N, 50/60 Hz

Vexta 5-Phase Driver UDK5128N 50/60 Hz

Vexta 5-Phase Driver UDK5114NA

Vexta 5-Phase Driver UDK5107NW2 100-115V~ 1.5A

VEXTA 5-PHASE DRIVER UDK5107NW2

VEXTA 5-PHASE DRIVER DFU1514-A3

VEXTA 5IK90GU-AFUL  5IK90GUAFUL

VEXTA 5IK90GS-A2FUL  5IK90GSA2FUL

VEXTA 5IK90A-A2FUL  5IK90AA2FUL

VEXTA 5IK40RGK-AA  5IK40RGKAA

VEXTA 5IK40RGK-AA  5IK40RGKAA

VEXTA 5IK40RGK-AA  5IK40RGKAA

VEXTA 5IK40GN-AWT  5IK40GNAWT

VEXTA 5IK40GK-AA  5IK40GKAA

VEXTA 5IK40GK-AA  5IK40GKAA

VEXTA 5IK40GK-AA  5IK40GKAA

VEXTA 5GU7.5KA  5GU75KA

VEXTA 5GU7.5KA  5GU75KA

VEXTA 5GU5KB  5GU5KB

VEXTA 5GU5KB  5GU5KB

VEXTA 5GU5K  5GU5K

VEXTA 5GU50KB  5GU50KB

VEXTA 5GU30KB  5GU30KB

VEXTA 5GU25KB  5GU25KB

VEXTA 5GU18KB  5GU18KB

VEXTA 5GU18KB  5GU18KB

VEXTA 5GU18KB  5GU18KB

VEXTA 5GU180KB  5GU180KB

VEXTA 5GU15KB  5GU15KB

VEXTA 5GU150KB  5GU150KB

VEXTA 5GU150KB  5GU150KB