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系统结构

实现软起动也是可以用开环系统来实现的，但是它使环境的到抑制扰动的影响比如温度等湿度等环境因素,：用闭环负反馈 控制系统来实现软起动更为稳定如图9所示，使起动电流作为反馈施加给软启的动控制环节，这一环节通过的可以计算的 规律来控制晶闸管触发角的改变,调节作电机定子的作用电压,：当电流反馈值超过电流限定值时，触发角不变直至电流降下降才 会变小,而输出电压随之上升至全压。 

(2)模型构建

由于本模型较复杂，为了实现系统的模块化管理，对构成反并联晶闸管电路、触发电路、软起动控制环节的多个标准基本模块 分别采用Simulink的封装技术，将它们集成在一起，形成新的功能模块，构建如图10软起动仿真模型。 

分析仿真结果，可知:起始电压设定的越低，转速上升就越快，起动时间就越短。上升速率设定的越大，转速上升的越快，起动 过程就越短。

三相异步电机是靠同时接入三相交流电源（相位差120度）供电的一类电动机。由于三相异步电机的转子与定子旋转磁场以相同的方向、不同的转速成旋转，存在转差率，所以叫三相异步电机。按照转子结构形式可分为：鼠笼式和绕线式两类。鼠笼式比绕线式异步电动机的价格便宜，结构简单、维护方便，在一般性的生产机械中应用为广泛。

启动电流带来的影响：启动电流过大使电压损失过大，启动转矩不够使电动机根本无法启动；使电动机绕组发热，绝缘老化，从而缩短了电动机的使用寿命；造成过流保护装置误动作、跳闸；使电网电压产生波动，进而形成影响连接在电网上的其他设备的正常运行。电动机启动时，在保证大小的启动转矩的前提下，还要求限制启动电流在允许的范围内。

MICRO MOTION TRANSMITTER FIELD MOUNT MOD# 1700R11ABUEZZZ

MICRO MOTION TRANSMITTER FT-686-020 2700R12BBMEZZX ET010417

Micro Motion Transmitter Model: RFT9712-3KNU,           .

Micro Motion Transmitter PI 4-20 E

MICRO MOTION TRANSMITTER RFT9739D4SUA             

MICRO MOTION TRANSMITTER, MODEL: 1700R11ABUEZZZ, SN: 3018085,             

MICRO MOTION TRANSMITTER, MODEL: 1700R11ABUEZZZ, SN: 3018365,             

MICRO MOTION TRANSMITTER, MODEL: 2700R11ABAEZZZ, SN: 3012848,             

MICRO MOTION TRANSMITTER, MODEL: 2700R11ABAEZZZ, SN: 3012856,             

Micro Motion Transmitters Installation Operation Manual

Micro Motion Type 700 Remote 9 to 4-Wire Core Processor 2009            A20 (1727)

Micro Motion Type 700 Remote 9 to 4-Wire Core Processor 2010            D13 (1758)

Micro Motion Type 700 Remote 9 to 4-Wire Core Processor 2010            H13 (1671)

Micro Motion Type 700 Remote 9 to 4-Wire Core Processor 2010 NIB

Micro Motion Type 700 Remote 9 to 4-Wire Core Processor 2013            A12 (1699)

Micro Motion Type 700 Remote 9 to 4-Wire Core Processor E12 (1907)

Micro Motion Type 700 Remote 9 to 4-Wire Core Processor G12 (1907)

Micro Motion Type 700 Remote 9 to 4-Wire Core Processor H14 (1827)

Micro Motion Type 800 Enhanced Core Processor Extended Mount            E8 (1736)

MICRO MOTION UL115-AF

MICRO MOTION UL115-AF SN: 83706 REMOTE ELECTRonICS UNIT             

MICRO MOTION UL115-AF SN: 96133 REMOTE ELECTRonICS UNIT             

Micro Motion US115-AF Mass Flow Remote Unit, 100/115/220V 50/60Hz, 12-30VDC 8W

MICRO MOTION WM4110    WM4110

Micro Motion, DS040S119, Mass Flow Sensor Meter Transmitter           

Micro Motion, D-S150S141 FLOWMETER A-6042

MICRO MOTION, INC. MonITOR FMS1NA1CA *            *

MICRO MOTION, MODEL 1500D3ACBAEBZZ, 4 WIRE REMOTE 35MM DIN-RAIL TRANSMITTER             

Micro MotionMass Flow Sensor CMF010M324NU 360866              TAKE OUT

micro motions emerson 02038-34 drive board

MICRO MOTIONS MASS FLOW REMOTE ELECTRonICS UNIT RE-01 511431 9131

Micro switch 914CE2-3 with motor motion code C-B ?? cant read label

Micro Switch Explosion Proof Scanner PC1LX

MICRO SWITCH FE-MLS10-A10A Photoelectric motion Limit switch *            * id6428/5-3

MICRO-ConTROLE X-MOTION STAGE MINI APERTURE MICROMETER ConTROL KLINGER

Micromotion - Elite Remote Flow Transmitter-Model #RFT9739-E1SUJ & Sensor

MICROMOTION 2700R11EBUEZAZ TRANSMITTER *           IN BOX*

MICROMOTION CMF010M321NABUEZZZ MASS FLOW SENSOR *           IN BOX*

MICROMOTION CMF010M321NRAUEZZZ MASS FLOW SENSOR *           IN BOX*

MICRO-MOTION CMF100M328NU MASS FLOW SENSOR METER 1" B16 (1)

MICROMOTION DL100S202SU MASS FLOW SENSOR *           IN BOX*

MICROMOTION DS0655219 2250 PSIG TUBE 230 PSIG CONN. 11x3x14 CORIOLIS FLOW METER

Micromotion DS065S239SU Mass Flow Meter Type4 -240 To 177°C 2250PSIG

MICROMOTION DS150S141 1500 TUBE PSIG 230 CONN PSIG 21 1/3x12x4 FLOW METER

MICROMOTION DS300S155SU *           IN BOX*

MICRO-MOTION ELITE REMOTE FLOW TRANSMITTER RFT9739E1SUJ 100/115 VAC              (K7)

MICRO-MOTION ELITE REMOTE FLOW TRANSMITTER RFT9739E1SUJ 100/115V (MM0)

Micromotion FMS-3 Flow Monitoring System

MICROMOTION H025S121NABAEZZZZ FLOW SENSOR *           IN BOX*

MICRO-MOTION MASS FLOW SENSOR 2" R200S419NCAAEZZZZ TRANSMITTER 1700111ABAEZZZ (1

Micromotion Mass Flow Sensor DS040S121 1250 PSIG Tube -240 to 204 Deg C

MICROMOTION MASS FLOW SENSOR DX025S121SU             

Micro-Motion Mass Flow Sensor Model DL200S226SU -240 to 204 Deg C NIB

Micro-Motion Remote Unit

MICROMOTION RFT97121PNU FLOW TRANSMITTER- NO BOX

MICROMOTION RFT9739E1SU REMOTE FLOW TRANSMITTER (AS PICTURED) *           IN BOX*

MICROMOTION T075F623SCAUEZZZZ w/ 1700I11ABUEZZZ TRANSMITTER *           IN BOX*

MMI Micro Motion 0259501 Rev G 025-9501 Drive Board

MMT Micro Motion Technology / D1-618-L5 / Linear Stage Positioner

MMT MICRO MOTION TECHNOLOGY DOVETAIL XY STAGE, M3-118-L5.

MMT MICRO MOTION TECHNOLOGY STAGE D1-618-L5W

MMT MICRO MOTION TECHNOLOGY STAGE M1-637-L1

MMT MICRO MOTION TECHNOLOGY T1-611

MMT MICRO MOTION TECHNOLOGY X.Y. STAGE M1-630-R1

MMT MICRO MOTION TECHNOLOGY X.Y.Z. STAGE #1

MMT MICRO MOTION TECHNOLOGY X.Y.Z. STAGE #2

MMT MICRO MOTION TECHNOLOGY X.Y.Z. STAGE M1-630-R1, D1-618-L5W

MMT MICRO MOTION TECHNOLOGY X.Y.Z. STAGE M1-639-R1 AND M2-639-L1

MO-645, MICRO MOTION RFT9739E4SUJEZ ELITE REMOTE FLOW TRANSMITTER. 85-250 VAC.

MO-647, MICRO MOTION 1508-SS-A150 MASS FLOW SENSOR

MO-756, MICRO MOTION D150S-SS MASS FLOW SENSOR

ModBus Mapping Assignments for Micro Motion Transmitter,             

National Aperture NAI Motion MC-5B Micro Positioning Stage Controller

National Aperture NAI Motion MC-5B Micro Positioning Stage Controller           

NCR 2170 Micro Motion 176 Key Keyboard POS NCR008-0219410 497-0407513 99031660

           ADVANCED MICRO SYSTEMS MOTION ConTROLLER SAX-232-EDC

           Cooper OMC-DT-0701-R Off White Micro Set Dual Tech Motion Sensor 32 KHZ

           EMERSON Micro Motion 2400S Analog Transmitter w/o User Interface and Housing

           EMERSON MICRO MOTION PCADRIVE BOARD 0276501 F0276501

           EMERSON MICRO MOTION PCAPROCELAMEX BOARD 1004669 REV.B F1004669

           ePIR Pure Digital Micro Auto PIR Curtain Lens Motion Detector Security Alarm

           FACTORY SEALED MICRO MOTION ANALOG OUTPUT BOARD 0203821

           FACTORY SEALED MICRO MOTION FREQUENCY OUTPUT BOARD 0203811

           FACTORY SEALED MICRO MOTION ISOLATION BOARD 0070102

           FACTORY SEALED MICRO MOTION SAFETY BOARD 0203802

           listing 1" 300# Micro Motion CMF100 Flow Sensor w/ Core Processor CALIBRATED C20 (1994)

           listing Micro Motion CMF010M314NRAUEZZZ Mass Flow Sensor

           listing Micro Motion RFT9739 E1SU Elite Remote Flow Transmitter C14 (1945)

           listing Micro Motion RFT9739 E1SU Elite Remote Flow Transmitter D2 (1945)

           listing Micro Motion RFT9739 E1SU Elite Remote Flow Transmitter H10 (1945)

           listing Micro motion ro50s1113v

           Micro Motion 02038 PCB 1002716 Rv C Drive Control Board PLC Card MicroMotion

           Micro Motion 2700R11ABMEZZZ Transmitter Model 2700 NIB Fisher-Rosemount

           Micro Motion 3051CG2A22A1AS1M504 Fluid Pressure Sensor

-          - Micro Motion C25A-R Mass Flow Remote Unit Box5B

           MICRO MOTION CMF010M321NRAUEZZZ

           MICRO MOTION CMF050H520NU MASS FLOW SENSOR 1/2"

           Micro Motion DL100S223SU DL100 Mass Flow Sensor 1" Control Sanitary 1 Inch

           Micro Motion DS012H205SU Mass Flow Sensor Control DS012 DS012H Micromotion

           MICRO MOTION ELITE REMOTE FLOW TRANSMITTER RFT9739E4S UK

           MICRO MOTION F025S319CRAUEZZZZ MASS FLOW SENSOR, 1/2" F SERIES

           MICRO MOTION FMC-00-0115-B ANALOG PC BOARD FMC000115B

           micro motion fms1naoca flow monitoring system batch controller

           Micro Motion IFT9701I1N3U Transmitter

           Micro Motion Leoni 4 Wire Shield Cable Part CMVDSZZ 3500493 35 Ft Roll

           Micro Motion MMI-20007328 Circuit Board MMI20007328 Rev B

           Micro Motion PCB1002392 Rev A Control Board PLC Card MicroMotion 1002392

           MICRO MOTION R200S352NCAAEZZZZ MASS FLOW METER/ SENSOR

           MICRO MOTION RFT9712 REMOTE FLOW TRANSMITTER

           MICRO MOTION RFT97121PNM REMOTE 115/230V-AC FLOW TRANSMITTER D409809

           Micro Motion T075T623SRACEZZZX Flow Sensor Meter w/ Remote Core 4-Wire Proc

           MicroMotion Micro Motion CMF025M313NC Flow Sensor

           ROSEMOUNT MICRO MOTION 3500P1B06B1UEDZZ CONTROLLER

           Schneider Electric Motion IM483 Microstepping Driver Micro Stepper

           SEALED EMERSON MICRO MOTION PCADRIVE BOARD 0276501 F0276501

          ! Micro Motion CMF200M418NRAUEZZZ Mass Flow

          !! Micro Motion F Series F050S113 Mass Flow Sensor 1/2" 36 GPM (B30)

          ** MICRO MOTION 026791-9721 PROCESSOR BOARD (331)

          port ESA-C Motion Controller Electrostrictive Micro/u Drive

NICE MICRO-MOTION ELITE REMOTE FLOW TRANSMITTER W/MASS FLOW SENSOR CHF100M339NU

NICE MICRO-MOTION FLOW METER IFT97011N3U W/ F100SI128SU

NNB EMMERSON-MICRO MOTION MASS FLOW METER H200S352MABAEZZZZ