DSDD212R40B_供应_中贸商网-贸易商务资源网

DSDD212R40B

发布时间:2015-09-12 12:30:23 产品编号:GY-5-59128342 分享

价格:0.00/个
品牌:原装进口
起订:1个
供应:10个
发货:3天内
信息标签:DSDD212R40B,供应,电子、电工,输电设备及材料

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DSDD212R40B

低压通用变频输出电压为380～650V，输出功率为0.75～400kW，工作频率为0～400Hz，它的主电路都采用交—直—交电路。其控制方式经历了以下四代。

**代

1U/f=C的正弦脉宽调制(SPWM)控制方式：

其特点是控制电路结构简单、成本较低，机械特性硬度也较好，能够满足一般传动的平滑调速要求，已在产业的各个领域得到广泛应用。但是，这种控制方式在低频时，由于输出电压较低，转矩受定子电阻压降的影响比较显著，使输出**转矩减小。另外，其机械特性终究没有直流电动机硬，动态转矩能力和静态调速性能都还不尽如人意，且系统性能不高、控制曲线会随负载的变化而变化，转矩响应慢、电机转矩利用率不高，低速时因定子电阻和逆变器死区效应的存在而性能下降，稳定性变差等。因此人们又研究出矢量控制变频调速。

第二代

电压空间矢量(SVPWM)控制方式：

它是以三相波形整体生成效果为前提，以逼近电机气隙的理想圆形旋转磁场轨迹为目的，一次生成三相调制波形，以内切多边形逼近圆的方式进行控制的。经实践使用后又有所改进，即引入频率补偿，能消除速度控制的误差；通过反馈估算磁链幅值，消除低速时定子电阻的影响；将输出电压、电流闭环，以提高动态的精度和稳定度。但控制电路环节较多，且没有引入转矩的调节，所以系统性能没有得到根本改善。

第三代

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。

第四代

直接转矩控制(DTC)方式：

1985年，德国鲁尔大学的DePenbrock教授首次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。

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。具体方法是：

1、控制定子磁链引入定子磁链观测器，实现无速度传感器方式；

2、自动识别(ID)依靠**的电机数学模型，对电机参数自动识别；

3、算出实际值对应定子阻抗、互感、磁饱和因素、惯量等算出实际的转矩、定子磁链、转子速度进行实时控制；

4、实现Band—Band控制按磁链和转矩的Band—Band控制产生PWM信号，对逆变器开关状态进行控制。

矩阵式交—交变频具有**的转矩响应(<2ms)，很高的速度精度(±2%，无PG反馈)，高转矩精度(<+3%)；同时还具有较高的起动转矩及高转矩精度，尤其在低速时(包括0速度时)，可输出150%～200%转矩。

VVC的控制原理：

VVC的控制原理是将矢量调制的原理应用于固定电压源PWM逆变器。这一控制建立在一个改善了的电机模型上，该电机模型较好的对负载和转差进行了补偿。

因为有功和无功电流成分对于控制系统来说都是很重要的，控制电压矢量的角度可显著的改善0-12HZ范围内的动态性能，而在标准的PWM U/F驱动中0-10HZ范围一般都存在着问题。

利用SFAVM或60°AVM原理来计算逆变器的开关模式，可使气隙转矩的脉动很小（与使用同步PWM的变频器相比）。

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INVENSYS RECEIVER ConTROLLER 2341-502 IN THE BOX

INVENSYS RECEIVER ConTROLLER 2341-501 * *

Invensys Ranco RV Refrigerator Thermostat 9533N417

Invensys Quick Connect Kit, Water Solenoid -

INVENSYS QE214309 QE214309

INVENSYS Q408-A004 Q408A004

INVENSYS Q408-A004 INPUT MODULE Q408A004

Invensys PROV-GCM Programmer/Operator Interface Keypad Controller PROVGCM

Invensys Proportional Spring Return MS40-7043

Invensys Proportional Spring Return Actuator MS40-AF24

INVENSYS POPTOP ConTROL VALVE 2 WAY 3/4" 2.5CV VS2342G14D020 * IN BOX*

INVENSYS PNEUMODULAR SELECTOR RELAY 2372-502, IN THE BOX

Invensys Pneumodular Diverting Relay 2353-502

INVENSYS PNEUMATICS PISTON Model PHC032U0100, Stainless Steel, NIB

Invensys Pneumatic Valve Actuator MK-4800 ... ZH-96

INVENSYS PNEUMATIC THERMOSTAT KIT TKR-1101 REVERSE ACTING #581

INVENSYS PNEUMATIC THERMOSTAT KIT TKR-1101 REVERSE ACTING - Jo313

Invensys Pneumatic Damper Actuator #MK4-3121-0-2 47-1030 W/AK-42309 ( )

INVENSYS PNEUMATIC BULB THERMOSTAT TK-2001 25527

INVENSYS Permanent Magnet DC Motor 2000rpm MP80/115 0.55kw 90v WIND TURBINE?

INVENSYS PECO T170 TA170-016 DIGITAL 24V, 120-277VAC THERMOSTAT

INVENSYS PE-7000-SS PE7000SS

Invensys PC-301 Air Flow Switch

INVENSYS P0971YQ P0971YQ

INVENSYS P0902UT P0902UT

INVENSYS OPD-215ABT-B1 OPD215ABTB1

INVENSYS NETWORK 8000 GLOBAL ConTROL MODULE GCM-86120 w/ GCM-ETH-001

Invensys MZ2a-106-0-1-1 MICRO ZONE HVAC ConTROLLER PANEL MOUNT

INVENSYS MSC-V-512

Invensys MSC-P1504 Environmental Controls Unit

Invensys MS41-6043 !

INVENSYS MPR-5610-101-0-3 HYDRAULIC ACTUATOR (7799)

Invensys MPC-4CO Environmental Controls Unit

Invensys MP-5613-0-0-3 Hydraulic Valve Actuator

INVENSYS MP-5210-703-0-4 MP521070304

INVENSYS MP-421-0-0-2 ACTUATOR * OUT OF BOX*

Invensys MP-2150-500-2-2 Electric Actuator W/CP-8301 Series Drive

INVENSYS MP-2110-601-0-2 ACTUATOR W/ INVENSYS CP-8301 SOLID STATE DRIVE NIB

Invensys Motor - 5927202WA-04

INVENSYS MODULE MP12-1036 * OUT OF BOX 8

INVENSYS MODEL 043-B GAS REGULATOR 1/2"

INVENSYS MN-S3 MNS3

INVENSYS MN-S3 MICRonET SENSOR WITH SETPOINT ADJUSTMENT AND OVERRIDE

INVENSYS MNL-15RS1 ConTROLLER MN 150 I/A SERIES

INVENSYS MNL-10RS2 MNL10RS2

Invensys MN50 Controller MNL-5

Invensys MK-6601 PNEUMATIC VALVE ACTUATOR

INVENSYS MK-4800 PNEUMATIC VALVE ACTUATOR

INVENSYS MK-3141-0-2 PNEUMATIC DAMPER ACTUATOR 3-13PSI 3-1/2" * *

INVENSYS MK-2690-0-0-2, ACTUATOR VALVE STAINLESS STEEL

INVENSYS MINI-GARD PRESSURE ConTROL MG20-1026 , CUT IN 40 PSI , CUT OUT 15 PSI

INVENSYS MICROZONE WALL MOUNT MZ2A-105-0-1-1 24Vac 20VA 20 VA MZ2A105011

INVENSYS MICRonET 2000 MN-SDT DUCT/IMMERSION TEMPERATURE TRANSMITTER

Invensys MG21-2073 MG212073 C0 400 Amana 032401 - No Box

INVENSYS MF-5513-702 MF5513702

Invensys MF4E-60430 NSR Floating Actuator 24V 35in-lb IN BOX!!

Invensys MF40-6083 !!!

Invensys MF2-PIP-0-0-1 Microflo II, !!!

Invensys MC-431-0-0-1 Two Position Non-Spring Return Actuator Oil Immersed 120V

Invensys MC-351-0-0-1 Actuator with VB-7223-000-4-8 valve

Invensys MC-351-0-0-1 Actuator

Invensys MC20-1102 Relay 120V-AC Motor Protector Pilot Duty Control Relay

INVENSYS MC20-1102 * *

INVENSYS MA41-7153-502 ACTUATOR * IN A BOX*

INVENSYS MA41-7073-502 ACTUATOR * *

INVENSYS MA41-7073-502 ACTUATOR * IN A BOX*

INVENSYS MA40-7070 Two Position Spring Return Actuator 120Vac 50/60Hz

INVENSYS MA40-7043-501 DURADRIVE ACTUATOR ( NO BOX)

Invensys MA40-7040 Dura Drive 35 In. Lbs. Spring Return Actuator - I2615

Invensys M693-3095-1 Pneumatic Piston Damper Actuator 5-10 PSI Spring Range

Invensys M572-8308 2472 Series Pneumatic Piston Damper Actuator in Box!

INVENSYS M043REG00521 M043REG00521

INVENSYS M043REG00461 M043REG00461

INVENSYS LON-TERM1 LONTERM1

Invensys LCMA-116-0-0-1 COMM PCB Circuit Board Card

Invensys LA238781 | Tested with 12 month warranty

INVENSYS L800916 L800916

INVENSYS L0111LD L0111LD

INVENSYS K-74118-28 Water Inlet Valve S-53 N 230V 10W 12-2922-02

INVENSYS K-74118-11 K7411811

INVENSYS K-69879-12 Water Inlet Valve GS-56DRF1 N 120V 50/60Hz 14W WC-889-101

Invensys K63314-1 240v 10W 50/60hz Solenoid -

INVENSYS K-12930-269 OPERATING COIL 24V 50/60Hz 10W K12930269

INVENSYS J40009 J40009

INVENSYS J035104 J035104

INVENSYS IO-ODC-R0-060 INTERFACE MODULE * OUT OF BOX*

INVENSYS INTERMITTENT PILOT IGNITON ConTROL 24VAC LOCKOUT TIMING 780-845

INVENSYS I-NT-71-X2-P1 INT71X2P1

INVENSYS INPUT DIAPHRAGM KIT AT-523-30

Invensys Immersion Sensor TS-5721-101

Invensys ICXL10DN Lot of (2) Pressure Sensors 0L27-3 Nib

Invensys I/A Series Micronet Controller MN 150 Power: 24VAC 50/0Hz 15VA

Invensys I/A Series Micronet Controller MN 100 Power: 24VAC 50/0Hz 15VA

Invensys Hydraulic Valve Actuator MA-5210-0-0-4 MA5210004 120V Old Stock

Invensys Hydraulic Valve Actuator MA-5210-0-0-4 MA5210004 120V

Invensys Hydraulic Actuator MPR-5610-0-0-3, IN OPENED BOX

INVENSYS HSP81420-0-1 HSP8142001

Invensys HPC 500 Temperature Simulator Heat Pump Control

Invensys HP15 V480 RPM1750 PH3 PP212285

Invensys Honeywell 2230-018 Relilative Humidity Pneumatic Thermostat H18-301

INVENSYS HOME MANAGER RF MODEM W/APPLIANCE INTERFACE

Invensys HC-201 Duct Humidistat, 120/240 VAC, 60/345VA, 24/240 VAC, 8A, 125 F

Invensys HC-201 Duct Humidistat

INVENSYS GK 3" FLOW REGULATOR L-72925-11000 ** **

Invensys Gas Valve Conv Kit Invensys Controls HVAC Parts 1751-013 662013631765

Invensys gas thermostat model FD0-3-11-54 1004C vulcan OEM 407522-1 3/8 NPT

INVENSYS G4280001V1 G4280001V1

INVENSYS G4180001V1 G4180001V1

INVENSYS G0114EJ-F PWA TERMINAL CIRCUIT BOARD * *

invensys FOXBORO software on 24 3.5" diskettes, SCADA

Invensys Foxboro Pneumatic Circular Chart Recorder 40MR-RFM2F COMPLETE

Invensys Foxboro Model IDP10-A22C21F-M1 Transmitter

Invensys Foxboro Lot of 6 Automation Modules RLY4

Invensys Foxboro Lot of 6 Automation Modules DI4

Invensys Foxboro Lot of 2 Automation Modules AI3

INVENSYS FOXBORO LIQUID LEVEL TRANSMITTER 13F SERIES

INVENSYS FOXBORO IGP10-T22E1F FLOW PRESSURE TRANSMITTER EXPLOSION PROOF

Invensys Foxboro IDP10-T22B11F-M1L1W Differential Pressure Transmitter

Invensys Foxboro IDP10-T22B11F-M1L1C3W Differential Pressure Transmitter

Invensys Foxboro IDP10-T22A11F-M1L1C3W Differential Pressure Transmitter

Invensys Foxboro IDP10 Differential Pressure Gauge Transmitter 20070

Invensys Foxboro I/A Series WP51B AP51B AW51B Sun Sparc 5 110MHz

Invensys Foxboro I/A series Version 7.0 Release notes & Install documentation

Invensys Foxboro I/A Series FCM2F2 2Mbps Fiber Optic Fieldbus Extender P0914YZ

Invensys Foxboro I/A Series 51B 170MHz 64Mb memory 18Gb HDD, CD Floppy & Wrnty

Invensys Foxboro E20F operator interface touchscreen

INVENSYS FLUID AIR 3N204-RES * NO BOX*

Invensys FJT-101-1540 G-LP Gas Solenoid Valve 1/2" 770085-2

INVENSYS F362-4900-PT-1 F3624900PT1

INVENSYS F0109EG F0109EG

Invensys Eurotherm Switchcraft 4 Prong Socket x 2

Invensys Eurotherm Power Controller 7100A 63A/480V

Invensys Eurotherm Power Controller 7100A 25A

Invensys Eurotherm Model 659A Resistance to Position Converter

Invensys Eurotherm Filter Capacitor 47uf For MP-52XX Actuator AD-8969-619

INVENSYS EUROTHERM 3508/CC/VH/1/XX/1/1/60/G/AM//D4/AM/XX/XXXX/ENG/ENG CONTROLLER

INVENSYS EUROTHERM 2408I/AL/RD/VL/XX/XX/D5/RF/XX/XX/ENG/XX CONTROLLER

Invensys Eurotherm 2408I indicator alarm unit 5 digit furnace temperature

Invensys Erie Thermostatic Change-Over Switch Kit Motortrol Valves 680-243-6

INVENSYS ERIE POPTOP ConTROL VALVE 1/2" SWEAT 3 WAY 120V VT3213G13B020 * *

INVENSYS ERIE POPTOP ConTROL VALVE 1/2" SWEAT 2 WAY 120V VT2212G13B020 * *

INVENSYS EPOWER/4PH-1700A-AC/690V/XXX/XXX/XXX/XXX/OO/ET/XX/XX/XX/XXX/XX/32ENG/XX

INVENSYS ENERGY SYSTEMS SEConDARY PCB CIRCUIT BOARD CARD 350-00079-24F FOR R5848

INVENSYS ENERGY SYSTEMS SEConDARY PCB CIRCUIT BOARD 350-00079-24F FOR R5848

INVENSYS ENERGY SYSTEMS R5848 REWORK 3 PHASE BOOST PCB BOARD 350-00089-09A

INVENSYS ENERGY SYSTEMS R5848 3 PHASE DC-DC ConVERTER PCB BOARD 350-00089-01A

INVENSYS ENERGY SYSTEMS CIRCUIT BOARD CARD 618000028 REV P00

INVENSYS ENERGY INTERGY RECTIFIER MODULE R5848-15

Invensys ENCL MZ800 WAL AHU Controller

INVENSYS ELECTRIC THERMOSTAT OVEN REPLACEMENT PARTS S-211-48 MT 450°

INVENSYS ELECTRIC DAMPER ACTUATOR MF-1233-2-0-2

INVENSYS ECMA1/FA107/GW01/GW01/GW01/GW01/GW01/A0/107V023/0 ECMA1FA107GW01G1

INVENSYS ECMA1/FA107/AS170/0/0/0/A0/107V020/0 ECMA1FA107AS1700

INVENSYS ECKARDT SRP981-B1DNS1NA PNEUMATIC POSITIONER

Invensys ECKARDT SR1986 I/P Positioner with Valve, Free Shipping

Invensys Eckardt Elektro-Pneumatischer Stellungsregler

INVENSYS EC7000/24V EC700024V

INVENSYS EC4950N PROXIMITY SENSOR ELECTRO CORPORATION

Invensys DuraDrive MS40-7043 Proportional Actuator

Invensys DuraDrive MA-40-LF120 Spring Return Actuator NIB MA40-7040-501

INVENSYS DURADRIVE ACTUATOR MS40-7173 ~

INVENSYS DURA DRIVE PROPORTIonAL W/ AUX. SWITCH & VALVE

Invensys Dura Drive MA41-7153-502 Two Position Actuator

Invensys Double Like Break Thermostat 120 Degree F

INVENSYS CT063U0100A COMPAIR AIR PNEUMATIC CYLINDER

Invensys CP-9302 !!!

Invensys CP-8551-0-0-1 Pneumatic Transducer

联系方式

公司:厦门兴润星贸易有限公司（总部）
状态:离线发送信件
姓名:龙工(先生)
职位:销售工程师
电话:0592-6895082
手机:18030263558
传真:0592-6034581
地区:福建-厦门市
地址:厦门市海沧区泰地海西A栋501

邮编:361000
QQ:3044734884
阿里旺旺:厦门兴润星
商铺:http://m.ceoie.com/xrxhxx0043/

去厦门兴润星贸易有限公司（总部）怎么走？上图中的红点是厦门兴润星贸易有限公司（总部）在厦门市的具体位置标注，操作左上角地图工具可以放大缩小哦。

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