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單元機組控制系統(tǒng)一體化的崛起
　　隨著一些電廠將電氣發(fā)變組和廠用電系統(tǒng)的控制(ECS)功能納入DCS的SCS控制功能范圍，ETS控制功能改由DCS模件構成，DEH與DCS的軟硬件合二為一，以及一些機組的煙氣濕法脫硫控制直接進入單元機組DCS控制的成功運行，標志著控制系統(tǒng)一體化，在DCS技術的發(fā)展推動下而走向成熟。
　　由于一體化減少了信號間的連接接口以及因接口及線路異常帶來的傳遞過程故障，減少了備品備件的品種和數(shù)量，降低了維護的工作量及費用，所以近幾年一體化控制系統(tǒng)在不同容量的新建機組中逐漸得到應用，如浙江華能玉環(huán)電廠4×1000MW機組、臺州電廠2×300MW機組和安徽鳳臺電廠4×600MW機組均全廠采用西屋Ovation系統(tǒng)，國華浙能寧海電廠4×600MW機組全廠采用西門子公司的T-XP系統(tǒng)，大唐烏沙山電廠4×600MW機組全廠采用I/A系統(tǒng)，國華臺山電廠2×1000MW機組采用北京和利時公司系統(tǒng)，浙江樂清電廠4×600MW機組全廠采用ABB公司的SYMPHONY系統(tǒng)等。 控制系統(tǒng)一體化的實現(xiàn)，是電力行業(yè)DCS應用功能快速發(fā)展的體現(xiàn)。排除人為因素外，控制系統(tǒng)一體化將為越來越多的電廠所采用。
　　3)DCS結構變化，應用技術得到快速發(fā)展
　　隨著電子技術的發(fā)展，近年來DCS系統(tǒng)在結構上發(fā)生變化。過去強調(diào)的是控制功能盡可能分散，由此帶來的是使用過多的控制器和接口間連接。但過多的控制器和接口間連接，不一定能提高系統(tǒng)運行可靠性，相反倒有可能導致故障停機的概率增加。何況單元機組各個控制系統(tǒng)間的信號聯(lián)系千絲萬縷，互相牽連，一對控制器故障就可能導致機組停機，即使沒有直接導致停機，也會影響其它控制器因失去正確的信號而不能正常工作。
　　因此隨之控制器功能與容量的成倍增加、更多安全措施(包括采用安全性控制器)、冗余技術的采用(有的DCS的核心部件CPU，采用2×2冗余方式)以及速度與可靠性的提高，目前DCS正在轉(zhuǎn)向適度集中，將相互聯(lián)系密切的多個控制系統(tǒng)和非常復雜的控制功能集中在一對控制器中，以及上述所說的單元機組采用一體化控制系統(tǒng)，正成為DCS應用技術發(fā)展的新方向，這不但減少了故障環(huán)節(jié)，還因內(nèi)部信息交換方便和信息傳遞途徑的減少而提高了可靠性。
　　此外，隨著近幾年DCS應用技術的發(fā)展，如采用通用化的硬件平臺，獨立的應用體系，標準化的通訊協(xié)議，PLC控制器額融入，F(xiàn)CS功能的實現(xiàn)，一鍵啟動技術的成功應用等，都為DCS增添了新的活力，功能進一步提高，應用范圍更加寬廣。
　　4)全廠輔控系統(tǒng)走向集中監(jiān)控
　　一個火電廠有10多個輔助車間，國內(nèi)過去通常都是由PLC和上位機構成各自的網(wǎng)絡，在各車間控制室內(nèi)單獨控制，因此得配備大量的運行人員。為了提高外圍設備控制水平和勞動生產(chǎn)率，達到減員增效的目的，隨著DCS技術和網(wǎng)絡通訊功能的提高，目前各個輔助車間的控制已趨向適度集中，
　　整合成一個輔控網(wǎng)(簡稱BOP 即Balance Of Plant的縮寫)方向發(fā)展，即將相互獨立的各個外圍輔助系統(tǒng)，利用計算機及網(wǎng)絡技術進行集成，在全廠IT系統(tǒng)上進行運行狀況監(jiān)控，實現(xiàn)外圍控制少人值班或無人值班。
　　近幾年新建工程迅速向這個方向發(fā)展。如國華浙能寧海電廠一期工程(4×600MW)燃煤機組BOP覆蓋了水、煤、灰等共13個輔助車間子系統(tǒng)的監(jiān)控，下設水、煤、灰三個監(jiān)控點，集中監(jiān)控點設在四機一控室里，打破了傳統(tǒng)的全廠輔助車間運行管理模式，不但比常規(guī)減員30%，還提升了全廠運行管理水平。整個輔控網(wǎng)的硬件和軟件的統(tǒng)一，減少了庫存?zhèn)淦穫浼叭粘９芾砭S護費用。由于取消了多個就地控制室，使得基建費用和今后的維護費用都減少。一些老廠的輔助車間也在進行BOP改造，其中浙江省第一家完成改造的是嘉興發(fā)電廠2×300MW機組，取得較好效果。

Modicon SW-DO5D-1DA

Schneider Modicon MOTION MOD ENCDR/RSLVR - Model AS-BMOT-202

Schneider Modicon ASBADU214 BRAND Compact Analog Input AS-BADU-214

Schneider Modicon AS-B551-001 NSPP ASB551001

Schneider Modicon /OUTPUT MODULE MODEL DAP 217/AS-BDAP-217

Schneider Modicon /Schneider AS-B882-239/ASB882239 High Speed Counter NICE MAKE OFFER

Schneider Modicon AS-B552-001 I/O Module

Modicon Output Module AS-B350-001 115 VAC 4456

SIEMENS SIMATIC 6ES5420-3BA11 INPUT MODULE NICE

SIEMENS 6ES5-487-3LA11 6ES54873LA11 I/O MODULE

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SIEMENS 6DD1681-0AE2 SIMADYN I/O MODULE

SIEMENS SINUMERIK 6FX1410-0CX83 6FX 14100CX83 6FX14100CX83 NIB

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SIEMENS Simodrive 6RB2000-0NF01 Control Board.

SIEMENS 802S 6FC5 500-0AA00-1AA0 Membrane Keypad

Advantech Axiomtek FSC-1621VD Main Board

Allen-Bradley 1771-OVN 10-30 VDC Output Module

ABB ACS550-U1-125A-4 AC INVERTER DRIVE 100HP 75KW 3PH 48..63HZ 380...480VAC

ACUITY IMAGING AR4000 NSPP AR4000

6ES7455-1VS00-0AE0 Brand , Factory Sealed,

900 HP 460 Reduced Voltage Electric Motor Starter WEG SSW061100T2257ESH2Z

SQUARE D KIP36250 NSFP KIP36250

COGNEX 800-5838-4 NSPP 80058384

BASLER ELECTRIC BE1-87T-E1E-A1L-NON2F USPP BE187TE1EA1LNON2

MODICON PC-E984-285 USPP PCE984285

LENZE EVS9326-ES USPP EVS9326ES

DOVER FLEXO 1201-00-010-1 USPP 1201000101

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SIEMENS SINUMERIK 6FC5203-0AF00-0AA0 Membrane Keypad

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HWIC-2T Cisco High-Speed WAN Interface Card expansion module " SEALED"

XPRESSKIT NEXGEN DATABUS ALL COMBO VEHICLE DOOR LOCK OVERRIDE INTERFACE MODULE

SIEMENS 6ES5-430-4UA11 6ES54304UA11

Siemens MP270 6AV6 542-0AC15-2AX0 Membrane Keypad

Omron CVM1-BC053

Schneider Modicon AS-BDAP-212 8x24 VDC Discrete Combi DAP-212

Schneider Modicon AS-4863-025 USPP AS4863025

Schneider Modicon AS-J890-001 REMOTE I/O INTERFACE SINGLE CHANEL

Schneider Modicon AS-516P-002 Processor Board Rev C20 (AIND/UEX)

Schneider Modicon DTA201/AS-HDTA-201

Schneider Modicon -AS-5284-001

Silent Knight SD500-AIM Addressable Input Module

Schneider TSXMFP032P Mem Card

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CSM Serial Communications Module PN 469880-01

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Advantech Axiom Axiomtek IPC-586VDHGX Card FS

Allen-Bradley 6185-DACABBZ Series A Touchscreen A4

ABB 3E034013 DRIVE 3E 034013

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A06B-6088-H230#H500#EM FANUC SERVO AMPLIFIER REMANUFACTURED

801FSC148 ALLEN BRADLEY 801 FSC148

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ANN ARBOR INX5486S-M NSFP INX5486SM

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KOLLMORGEN IND M205-C21-259 NSFP M205C21259

GORING KERR DSP2 USPP DSP2

ZEBRA Z220-451-00054 USPP Z22045100054

PACIFIC SCIENTIFIC S33NLYY-LNF-NS-01 USPP S33NLYYLNFNS01

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QLogic SANbox 9200 Switch 9000 SB9200-32B 31277-12

GM 19202820 Personal Device Interface Module PDIM USB MP3 iPod 10-2012

Tii Telephone Network Interface Module 3711H 71 1I01

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Siemens ET200S 6ES7 135-4GB01-0AB0 6ES7135-4GB01-0AB0

Modicon PC-E984-485

Schneider Modicon GOULD C921 COMMUNICATION PROCESSOR AS-C921-101

Schneider Modicon AS-BMOT-202 Compact Motion Encoder ASBMOT202

Schneider Modicon AS-C924-000 USPP ASC924000

Schneider Modicon AS-P120-000 IN BAG ASP120000

Schneider Modicon AS-B814-108 ASB814108 Relay Output

Schneider Modicon Memory Module NIB Part AS-385-904

Schneider Telemecanique XBTFC064510 XBTFCO64510

Schneider Graphic Terminal XBTOT4320

Promise VTrak J630sS hard drive array

SIEMENS 6ES5 458-7LB11 OUTPUT 250VAC MODULE IN BOX

SIEMENS 6DD2920-0AR1 TRANSFORMER SA61

Honeywell S7810M 1003 ModBus Communication Module

SIEMENS SIMODRIVE 6SN1145-1BA01-0BA1SINUMETIK 840D NCU-BOX 6FC52476FC5357-#2ZZ

SIEMENS SINUMERIK 810D/840DPCU20 6FC5210-0DF00-1AA1

SIEMENS Moore APACS System and Components

Allen-Bradley PanelView 600 2711-B6C10

550 HP 460 Reduced Voltage Electric Motor Starter WEG SSW060670T2257ESZ

ABB Teach Pendant

A06B-0153-B077#0076 FANUC SERVO MOTORS REMANUFACTURED

71100C HP/Agilent 2.9 GHz Spectrum Analyzer

RELIANCE ELECTRIC 1398-DDM-150 NSFP 1398DDM150

ALLEN BRADLEY 1785-L40C USPP 1785L40C

ALLEN BRADLEY 1394-AM75 NSFP 1394AM75

GENERAL ELECTRIC DS3800NPSE1C1C USPP DS3800NPSE1C1C

TOSHIBA VT130G3U4220 USPP VT130G3U4220

SYMAX 8020-SMM-720 USPP 8020SMM720

FANUC NE-1505-470-300 USPP NE1505470300

Siemens 6ES5-095-8MC01 USPP 6ES50958MC01

SIEMENS 6ES5 315-8MA11 6ES53158MA11

SIEMENS 6ES5928-3UB12 6ES5 928-3UB12S5-135U CPU928B Processor READ

Siemens 6ES5 710-8MA21 USPP 6ES57108MA21

SIEMENS 6ED1052-1CC00-0BA4 6ED10521CC000BA4 ping

Siemens LOGO! 6ED1052-1CC01-0BA6 NIB + LOGO USB Cable

Rigol Function/Arbitrary Waveb Generators DG3121A

Telemecanique XUD-H003537

Smc EX230-SDN1 Pack of 6 SMC EX230SDN1 DeviceNet Interface Module

w/ 1 year

Siemens BSM75GB120DN1 IGBT Module

Modicon AS-T584-001

Schneider Modicon Automation AS-B805-016 16 PLC Module

Schneider Modicon AEG/GOULD// AS-B564-000 OUTPUT MODULE 24-48VAC XLNT

Schneider Modicon AS-B884-002 I ASB884002 I $3375.00 I

Schneider Modicon AS-B232

Schneider Modicon P230 PROGRAMMER AS-P230-080

Schneider Modicon AS-P451-622 REMOTE I/O PROCESSOR MODEL P451 200 SERIES

Schneider Automation 140 DAO 842 10 140DAO84210 Output Module

Siemens 16 Pt Analog Input Module 505-2555

Reliance Electric 0-57416-K Remote I/O Comm Mod Missing Mounting Clip

Siemens 6ES7272-0AA30-0YA1 6ES7 272-0AA30-0YA1 TD 200 2-Line Text Display

SIEMENS SINUMERIK800SW6 NSFP SINUMERIK800SW6

OMRON COMMUNICATION MODULE UNIT I/O- DRT1-COM

SIEMENS SIMODRIVE (POWER SUPPLY) 6SN1145-1AA01-0AA1

SIEMENS SINUMERIK PROGRAM PANEL 6FC 5203 5210 5253

SIEMENS NetApp X279A-R5 300GB 15K.6 FC Hard Disk Drive 108-00156-B2 ST3300656FC

AllenBradley1771-OFE2/BPLC-5AnalogOutputModuleAB3

Allen Bradley SLC500 Output Module

ABB part kit for Advac vacuum circuit breaker cell switchgear trip unit 5 15 kV

Zwick Tensile Tester 20848

, factory sealed SIEMENS 6FX1120-5BA01

MODICON AM-S980-130 USPP AMS980130

ALLEN BRADLEY 1394C-SJT05-L USPP 1394CSJT05L

GENERAL ELECTRIC THPC-3630BG3T USPP THPC3630BG3T

GE FANUC 44A392661-G01 USPP 44A392661G01

SIEMENS 6SC9111-2AC25 USPP 6SC91112AC25

SICK OPTIC ELECTRONIC IVC-2DM1111 USPP IVC2DM1111

Siemens 6ES5 701-3LA13 6ES57013LA13

Siemens S5 6ES5 247-4UA31 6ES52474UA31 NIOB

SIEMENS 6ES5-464-8ME11 ANALOG INPUT MODULE 6ES54648ME11

Siemens 6ES5 421-8MA12/6ES5421-8MA12 INTERFACE MODULE XLNT

Siemens S5 Power Supply 6ES5951-7LB21 E Stand 03

Siemens CPU313C 6ES7-313-5BE00-0AB0

SFP-GE-T 1000BASE-T SFP MODULE FOR CISCO NEBS 3 ESD

Square D 8030 ROM-221

SIEMENS 6ES5 314-3UR11 INTERFACE MODULE

WE SHIP SAME Cisco WS-C4948-E CATALYST 4948 48-PORT 1YR

Siemens 6GK5 788-1ST00-2AA6 6GK57881ST002AA6 Ethernet

SIEMENS TP177A TP177B Protective Film

Schneider Modicon Input Module AS-BDEO-216/DEO

Schneider Modicon AS-BDEP-215 INPUT MODULE 16 POINT 5V TTL ASBDEP215

Schneider Modicon AS-B805-016 NSFP ASB805016

Schneider Modicon Modem Assy Model AS-J378-000

Schneider Modicon AS-M8A-002 RECONDITIONED

Schneider Modicon AS-B885-002 ASB885002 Basic Module

Schneider/Telemecanique XBTGT1100 Magelis Advanced Panel FREE SHIP GUARANTEED

SIEMENS 6ES7 326-1BK01-0AB0 SIMATIC S7 INPUT MODULE

SATT CONTROL 492620802 USPP 492620802

Siemens HMI 6AV6 641-0AA11-0AX0 NIB 6AV66410AA110AX0

SIEMENS SINUMERIK 802D KEY BOARD 6FC5603-0AC13-1AA0

Siemens 6ES5524-3UA13 Communication Module SIMATIC with Warranty 6ES5373-1AA41

SIEMENS 6SN1145-1AA00-0AA0 NSFP 6SN11451AA000AA0

SIEMENS 6SN1118-0AA11-0AA1 6SN1 118-0AA11-0AA1 SIMODRIVE 611-A Control Unit

SIEMENS 6FC5152-2AX01-1AA01 USPP 6FC51522AX011AA0

AllenBradleyPanelview2711-T6C20L1/B2711T6C20L1

Allen Bradley1741-B50C OUTPUT MODULE MODULAR AUTOMATION CONTROLLER 10-50 VDC

ABB Drive w/ Bypass ACH550-UH-124A-4, 460 VAC 3 PH 60 Hz 124 A 100 HP

ADEPT XY-HRS035-RM232AD XY-HRS060-RH200AD XY-HRS030-RS142AD 30410-10000 TESTED

(8115) Indramat AC Servo Drive FWAECODRV-ASE-04VRS-MS (8115)

INDRAMAT TDM1.4-100-300-W1-000 USPP TDM14100300W1000

WESTINGHOUSE SMAN3FN4G1-C200MB44P1 USPP SMAN3FN4G1C200MB

FANUC A06B-6076-H101 USPP A06B6076H101

ELEKTROR HRD60-EL-FU-480V-6.5KW NSFP HRD60ELFU480V65K

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OMRON C200H-FZ001 NSFP C200HFZ001

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Siemens 6ES5 440-8MA11 -- 6ES54408MA11

Siemens S5 6ES5 385-8MB11 6ES53858MB11

Siemens 6SE7090-0XX84-0AB0 Masterdrives CUVC in Box

Siemens 6ES7 332-5HB01-0AB0 -FS- 6ES73325HB010AB0

Siemens U-55T

MODICON AS-J830-001 MODULE INTERFACE 884/800 ASCII

WS-X4648-RJ45V-E Cisco Catalyst 4500E Series Line Card Switch 48 ports

Siemens 6ES7 414-2XK05-0AB0 6ES74142XK050AB0 NIB

Siemens RLU222 Controller

Reliance 0-57404-2F

Schneider Modicon Maria as Jeanne lying back in bathtub Last Tango in Paris 24X30 Poster

Schneider Modicon AS-B248-501 NSFP ASB248501

Schneider Modicon AS-P933-001 ASP933001 Fast Shipping

Schneider Modicon AS-B832-016 -DI-

Schneider Modicon AS-B802

MODICON MM-PMC2-300 OPERATOR INTERFACE PANEL

Siemens Simatic 505-4232 110 VAC Input Module

SIEMENS 6ES5-308-3UA12 NSFP 6ES53083UA12

Siemens S5 6ES5458-4UA12 Digital Output Module NIB Free Shipping

SIEMENS 6DD1-684-0BH1/6DD1684-0BH1 RIBBON CABLE APPROX. 2 METERS XLNT

SIEMENS SINUMERIK 840C/840CE 6FC5112-0CA03-0AA0 NIB

SIEMENS 6SN1112-1AB00-1AA0 6SN1 112-1AB00-1AA0 SIMODRIVE 611 Capacitor Module

SIEMENS SIMODRIVE 611-D 6SN1118-0DG23-0AA1 NIB

SIEMENS 6FC9348-7AT NSPP 6FC93487AT

Advantech MIC-3809 A1 02-1

Allen-Bradley 1771-ODC Isolated AC Output Module

ABB ACS601-0060-5-000B1200800

ADAPTIVE POWER SYSTEMS FC-210 - - UN - - - AVIONICS TESTING - POWER SUPPLY

6ES7492-1AL0-01AB0 Brand , Factory Sealed,

9020 DAYTRONIC POWER SUPPLY REMANUFACTURED

SQUARE D NJHN36000S60ABSO NSFP NJHN36000S60ABSO

CONTROL TECHNIQUES MX-1300 USPP MX1300

BERKELEY PROCESS BAM-432T USPP BAM432T

MTS SYSTEMS CO 469876-01L USPP 46987601L

MEASUREX 05361100 USPP 05361100

FANUC A06B-6079-H206 USPP A06B6079H206