描述

交流變頻調(diào)速之所以比直流調(diào)速廣泛運(yùn)用是因為交流電機(jī)，不是變頻調(diào)速原理具有優(yōu)越性，變頻調(diào)速只能應(yīng)用于調(diào)速，而對力矩是無法做到精確控制的，原因很簡單，直流調(diào)速的電樞和勵磁不是耦合的，是分開的，這樣對電樞電流和勵磁電流能夠做到精確控制。而交流調(diào)速，電樞電流和勵磁電流是耦合的，是無法做到精確控制的，盡管目前的變頻調(diào)速具有矢量控制，也就是運(yùn)用現(xiàn)代控制理論，通過矢量轉(zhuǎn)換，將交流電機(jī)中耦合的電樞電流和勵磁電流解開，從而對其進(jìn)行控制，也就是仿真直流調(diào)速的原理。但是要做到直流調(diào)速的控制特性目前是很困難的。因此在軋機(jī)、造紙等對力矩要求很高行業(yè)，直流調(diào)速還是具有廣泛性。而僅對速度控制，目前變頻調(diào)速是可以逼真直流調(diào)速的特性，因為交流電機(jī)的優(yōu)越性是直流電機(jī)無法做到的。

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主營：世界知名品牌的PLC、DCS系統(tǒng)備件模塊

②Schneider(施耐德電氣)系列產(chǎn)品》

③General electric(通用電氣)系列產(chǎn)品》

④Westinghouse（美國西屋）系列產(chǎn)品》

⑤SIEMENS(西門子系列產(chǎn)品)》

⑥銷售ABB Robots.FANUC Robots、YASKAWA Robots、KUKA Robots、Mitsubishi Robots、OTC Robots、PanasonicRobots、MOTOMAN Robots。

⑦estinghouse（西屋）：OVATION系統(tǒng)、WDPF系統(tǒng)、MAX1000系統(tǒng)備件。

⑧Invensys Foxboro（?？怂共_）：I/A Series系統(tǒng)，F(xiàn)BM（現(xiàn)場輸入/輸出模塊）

順序控制、梯形邏輯控制、事故追憶處理、數(shù)模轉(zhuǎn)換、輸入/輸出信號處理、數(shù)

據(jù)通信及處理等。Invensys Triconex:冗余容錯控制系統(tǒng)、基于三重模件冗余（TMR）

結(jié)構(gòu)的zui現(xiàn)代化的容錯控制器。

⑨Siemens(西門子)：Siemens MOORE，Siemens Simatic C1，Siemens數(shù)控系統(tǒng)等。

⑩Bosch Rexroth（博世力士樂）：Indramat，I/O模塊,PLC控制器,驅(qū)動模塊等。

◆Motorola（摩托羅拉）：MVME 162、MVME 167、MVME1772、MVME177等系列。

ABAXIS PICCOLO 100-1000 PORTABLE CHEMISTRY ANALYZER

COHERENT INNOVA 90 LASER With POWER SUPPLY/CONTROLL?ER

CRYOTIGER 1 T1102-13-000-30 CRYOGENIC REFRIGERATION SYS

AE/AMAT HFV 8000 3155083-151 5KW RF Generator

LECROY IF001UTA-X SAS-SATA-INFUSI?ON PROTOCOL ANALYZER

EDWARDS QDP40/QMB250F DRY PUMP/MECHANICAL BOOSTER

ADEPT 10332-22000/303?32-22350 SIO/IDE BOARD ROBOT

NESLAB HX-50 1250W/115V RECIRCULATING CHILLER

THERMO NESLAB MERLIN M33 RECIRCULATING CHILLER

OLYMPUS WM-D60 MOBILE WORKSTATION W/SCOPE HANGER

PFEIFFER VACUUM TPH 180H U DN 100 ISO-K,2P TURBO PUMP

Thermo Neslab Merlin M25 115V Recirculating Chiller

OLYMPUS WM-D60 MOBILE WORKSTATION W/SCOPE HANGER

OLYMPUS WM-D60 MOBILE WORKSTATION W/SCOPE HANGER

LEYBOLD MAG.DRIVE L TURBO PUMP CONTROLLER

VALHALLA SCIENTIFIC 2301 DIGITAL POWER ANALYZER

PROGRAMMABLE SINGLE PHASE

OLYMPUS WM-DP1(DOUBLE WIDE)MOBILE WORKSTATION

TDI/JUNIPER ERX-2400-PWR 19″3U MPS POWER SUPPLY RACK

ASPECT T-1 24 PT BYPASS UNIT W/RING VOLTAGE GENERATOR

ASSOCIATED RESEARCH 6554SA QUADCHEK ANALYZER W/GPIB

ENI DCG-100 DCG6M-A11200001?0P 5KW DC PLASMA GENERATOR

OLYMPUS MAJ-1430 ENDOSCOPY VIDEO PIGTAIL CABLE

ALCATEL 2033 DUAL STAGE ROTARY VANE VACUUM PUMP

HP 6033A 0-20V/0-30A 200W DUAL DC System Power Supply

ADEPT 10332-22000 SIO2/IDE HD UPGRADED TO 30332-22365

Brook Hansen WD132SD 5.5 KW/3-PH/RPM 1740 AC Motor NEW

EBARA HV-8 8″CRYO TURBO VACUUM PUMP

GIGA-TRONICS 8542C DUAL CHANNEL UNIVERSAL POWER METER

ADEPT PA-4 30336-31000R ROBOT CONTROLLER CHASSIS

STRYKER ENDOSCOPY X6000(REF 220-185-000)LIGHT SOURCE

SIEMENS 6ES7414-2XG01-0?AB0 CPU 414-2 Module Simatic S7

BARNES SE51AU SUBMERSIBLE NON-CLOG.5 HP PUMP(NEW)

NOVELLUS 02-103970-00 MODULE CNTRLR,P166/64 CONTROLLER

FLUKE 123 Series INDUSTRIAL SCOPEMETER 20 MHz

NOVELLUS 02-133876-00 ASSY SYS CONT,P166/64 CONTROLLER

CTI CRYOGENICS 8112099G009 CONTROLLER CABLE 96G23 AH

STRYKER ENDOSCOPY Q5000(REF 220-180-000)LIGHT SOURCE

HP 54111D 2CH/500MHz Digitizing Oscilloscope

AE/RFPP LF-5 500W Water Cooled RF Generator

ALCATEL MDP 5011 CERAMIC MOLECULAR DRAG PUMP 7.5 LPS

CTI Cryogenics Cryo-Torr 7 High Vacuum Pump(HELIX)

Adept 10332-11400 MI-3 Motion Process Controller Board

HP 8568A SPECTRUM ANALYZER W/85662A DISPLAY

Fluke 96B SCOPEMETER Series II 60 MHz

Adept SCSI VME SIO 30330-12350/103?30-12350 MODULE ROBOT

STRYKER SIDNE SUITE INTEGRATED CONTROL 240-020-900

SCIENTIFIC ATLANTA DYNAMICS SD380 SIGNAL ANALYZER

SIEMENS SIMATIC 6ES5 304-3UB11 S5 INTERFACE MODULE(NEW)

NSK LH25 Z Actuator Qty4 Linear Motion Guide Rail Qty2

HP 16500B W/3-16557D/1-16?520A Logic Analysis System

NOVELLUS 02-8105157-00 ASSY,SYS.CONT,P?166/64,24V

NOVELLUS 02-8105005-00 MOD CNT,P166,24V,W/?8 RS232

FORCE SPARC CPU-1E/4 600-11566-101 VME PROCESSOR BOARD

SOLOS ENDOSCOPY ELS-2 XENON ARC AUTOMATIC LIGHT SOURCE

TOHNICHI 2.4 BTG A TORQUE GUAGE 2.4-0.05 LBF-IN

DAYTON 3N376B 3-HP/3-PHASE/AC MOTOR(NEW)

BALDOR JMM3613T/5 HP/3 PH/AC INDUCTION MOTOR

GW GPC-3030D DUAL TRACKING W/5V FIXED DC POWER SUPPLY

Adept Technology 10332-00500R VJI JOINT INTERFACE BOARD

LYTRON RC006 KODIAK RECIRCULATING CHILLER

STRYKER ENDOSCOPY SERFAS RF GENERATOR 278-100-000

Adept Technology 10332-00505 EJI JOINT INTERFACE MODULE

ROHDE&SCHWARZ URV35 LEVEL/VOLT METER 1020.0002.03

HERAEUS INSTRUMENTS BIOFUGE 15R WITH DIGITAL DISPLAY

HVA 21241-0609R Vacuum Gate Valve Pneumatic 6″

SOLOS ENDOSCOPY VCM-2 GS 9400S

LEYBOLD INFICON IQ200 CONTROLLER VACUUM IQ 200

Adept Technology 10332-10250 VGB MODULE ROBOT

Adept Technology 10332-00500 VJI JOINT INTERFACE MODULE

ABB S4N+SACE PR211 600V 250A S4 CIRCUIT BREAKER

Panoview 92″Fixed Frame Graywolf II Projector Screen

NOVELLUS 02-132030-00 ASSY MOD CONT,P166/64 CONTROLLER

MKS TYPE 649/649A HE 10Torr/10 SCCM Pressure Controller

PARKER 4450-DM PRECISION LINEAR SLIDE

OKI DX-250/255 PRECISION DISPENSING SYSTEM DX 250(NEW)

STRYKER ENDOSCOPY QUANTUM 4000 LIGHT SOURCE

LECROY CATC SAS001MG SAS/SATA EXERCISER POD

UNIT UFC-1100A 100 SCCM MFC MASS FLOW CONTROLLER(NEW)