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單元機(jī)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(gòu)成，DEH與DCS的軟硬件合二為一，以及一些機(jī)組的煙氣濕法脫硫控制直接進(jìn)入單元機(jī)組DCS控制的成功運(yùn)行，標(biāo)志著控制系統(tǒng)一體化，在DCS技術(shù)的發(fā)展推動(dòng)下而走向成熟。
　　由于一體化減少了信號(hào)間的連接接口以及因接口及線路異常帶來(lái)的傳遞過(guò)程故障，減少了備品備件的品種和數(shù)量，降低了維護(hù)的工作量及費(fèi)用，所以近幾年一體化控制系統(tǒng)在不同容量的新建機(jī)組中逐漸得到應(yīng)用，如浙江華能玉環(huán)電廠4×1000MW機(jī)組、臺(tái)州電廠2×300MW機(jī)組和安徽鳳臺(tái)電廠4×600MW機(jī)組均全廠采用西屋Ovation系統(tǒng)，國(guó)華浙能寧海電廠4×600MW機(jī)組全廠采用西門(mén)子公司的T-XP系統(tǒng)，大唐烏沙山電廠4×600MW機(jī)組全廠采用I/A系統(tǒng)，國(guó)華臺(tái)山電廠2×1000MW機(jī)組采用北京和利時(shí)公司系統(tǒng)，浙江樂(lè)清電廠4×600MW機(jī)組全廠采用ABB公司的SYMPHONY系統(tǒng)等。 控制系統(tǒng)一體化的實(shí)現(xiàn)，是電力行業(yè)DCS應(yīng)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(lái)越多的電廠所采用。
　　3)DCS結(jié)構(gòu)變化，應(yīng)用技術(shù)得到快速發(fā)展
　　隨著電子技術(shù)的發(fā)展，近年來(lái)DCS系統(tǒng)在結(jié)構(gòu)上發(fā)生變化。過(guò)去強(qiáng)調(diào)的是控制功能盡可能分散，由此帶來(lái)的是使用過(guò)多的控制器和接口間連接。但過(guò)多的控制器和接口間連接，不一定能提高系統(tǒng)運(yùn)行可靠性，相反倒有可能導(dǎo)致故障停機(jī)的概率增加。何況單元機(jī)組各個(gè)控制系統(tǒng)間的信號(hào)聯(lián)系千絲萬(wàn)縷，互相牽連，一對(duì)控制器故障就可能導(dǎo)致機(jī)組停機(jī)，即使沒(méi)有直接導(dǎo)致停機(jī)，也會(huì)影響其它控制器因失去正確的信號(hào)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(shù)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(gè)控制系統(tǒng)和非常復(fù)雜的控制功能集中在一對(duì)控制器中，以及上述所說(shuō)的單元機(jī)組采用一體化控制系統(tǒng)，正成為DCS應(yīng)用技術(shù)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(yīng)用技術(shù)的發(fā)展，如采用通用化的硬件平臺(tái)，獨(dú)立的應(yīng)用體系，標(biāo)準(zhǔn)化的通訊協(xié)議，PLC控制器額融入，F(xiàn)CS功能的實(shí)現(xiàn)，一鍵啟動(dòng)技術(shù)的成功應(yīng)用等，都為DCS增添了新的活力，功能進(jìn)一步提高，應(yīng)用范圍更加寬廣。
　　4)全廠輔控系統(tǒng)走向集中監(jiān)控
　　一個(gè)火電廠有10多個(gè)輔助車(chē)間，國(guó)內(nèi)過(guò)去通常都是由PLC和上位機(jī)構(gòu)成各自的網(wǎng)絡(luò)，在各車(chē)間控制室內(nèi)單獨(dú)控制，因此得配備大量的運(yùn)行人員。為了提高外圍設(shè)備控制水平和勞動(dòng)生產(chǎn)率，達(dá)到減員增效的目的，隨著DCS技術(shù)和網(wǎng)絡(luò)通訊功能的提高，目前各個(gè)輔助車(chē)間的控制已趨向適度集中，
　　整合成一個(gè)輔控網(wǎng)(簡(jiǎn)稱(chēng)BOP 即Balance Of Plant的縮寫(xiě))方向發(fā)展，即將相互獨(dú)立的各個(gè)外圍輔助系統(tǒng)，利用計(jì)算機(jī)及網(wǎng)絡(luò)技術(shù)進(jìn)行集成，在全廠IT系統(tǒng)上進(jìn)行運(yùn)行狀況監(jiān)控，實(shí)現(xiàn)外圍控制少人值班或無(wú)人值班。
　　近幾年新建工程迅速向這個(gè)方向發(fā)展。如國(guó)華浙能寧海電廠一期工程(4×600MW)燃煤機(jī)組BOP覆蓋了水、煤、灰等共13個(gè)輔助車(chē)間子系統(tǒng)的監(jiān)控，下設(shè)水、煤、灰三個(gè)監(jiān)控點(diǎn)，集中監(jiān)控點(diǎn)設(shè)在四機(jī)一控室里，打破了傳統(tǒng)的全廠輔助車(chē)間運(yùn)行管理模式，不但比常規(guī)減員30%，還提升了全廠運(yùn)行管理水平。整個(gè)輔控網(wǎng)的硬件和軟件的統(tǒng)一，減少了庫(kù)存?zhèn)淦穫浼叭粘９芾砭S護(hù)費(fèi)用。由于取消了多個(gè)就地控制室，使得基建費(fèi)用和今后的維護(hù)費(fèi)用都減少。一些老廠的輔助車(chē)間也在進(jìn)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(jī)組，取得較好效果。

Nemic-Lambda hr-10

Schneider Modicon AS-B882-239 ASB882239 High Speed Counter

Schneider Modicon AS-B579-001 COUNTER MODULE HI-SPEED INCOMPLETE

Schneider Modicon AS-M780-032 ASM780032 Fast Shipping

Schneider Modicon AS-P800-003

Schneider Modicon AS-B373 Analog Input Module WOW

Schneider Modicon CHASSIS RACK AS-H819-209 AS-9534-02

SCHNEIDER Modicon TSXDSZ08R5

SCHNEIDER TSX QUANTUM ANALOG INPUT MODULE 140 AVI 030 00 043 502 753

Redback AIM-1K-2OC3SM VAC1DEOAAA SMS 1800 2 Port OC3 SM 90 Free Ship

SIEMENS 6ES5-470-4UA13/6ES5470-4UA13 OUTPUT MODULE XLNT

SIEMENS FANUC SINUMERIK Pulse Generator A860-0201-T002

Mitsubishi Melsec A1SJ71QC24N Serial Communication Module

SIEMENS Simodrive 6SN1115-0AA12-0AA0. CNC Cntrl Mod

SIEMENS SINUMERIK HANDWHEEL 6FC9320-5DC00 NIB

SIEMENS 6FC6C9 Battery Systemax D13 D13RI D13RL D13RY D14 D14E D14E0 D14E1

AllenBradley1746-NO4I/A1746-N04ISLC500AnalogCurrentOutputModule

ALLEN BRADLEY SLC 500 4-CHANNEL ANALOG INPUT / OUTPUT MODULE 1746 F104V

ABB ROBOT SERVO 3HAC 10556-1/0

A06B-0143-B088#0076 FANUC SERVO MOTORS REMANUFACTURED

0020-28434 CLAMP RING 8' JMF TI PVD DEGAS HTHU BUFF0020-28434

MODICON P1-984A-816 USPP P1984A816

ALLEN BRADLEY 150-B240NBDB USPP 150B240NBDB

ALLEN BRADLEY 1326AB-B515E-21-K5L USPP 1326ABB515E21K5L

GENERAL ELECTRIC 193X-532ADG04 USPP 193X532ADG04

SQUARE D CM4000 NSPP CM4000

SIEMENS 6SC6100-0GC14 NSFP 6SC61000GC14

ASEA BROWN BOVERI 3HAB2241-1 USPP 3HAB22411

Siemens 6ES5 943-7UB11 6ES59437UB11

Siemens SIMATIC S5 6ES5 431-8MC11

SIEMENS 6ES5-700-2LA11 USPP 6ES57002LA11

Siemens 6ES5 454-7LA11 NICE

SIEMENS 64kB MMC 6ES7 953-8LF20-0AA0 in Box

Siemens GSM TC35 SIM CARD

SATT CONTROL 492620802 USPP 492620802

Square D EQ5138-G2

Siemens FireFinder NIM-1R Network Interface Module MXL

SERIES E REV AA1 F/W REV K.2

Siemens 6SE7014-OTP50-Z NIB

Siemens TP7 6AV3607-1NH00-0AX0 Touch Panel in Box

Schneider Modicon DEP218/AS-BDEP-218 INPUT MODULE

Schneider Modicon AS-BADU-204Compact Analog Input ASBADU204

Schneider Modicon AS-B836-016 USPP ASB836016

Schneider Modicon PLC ZAE 204 / AS-BZAE-204 Module

Schneider Modicon AS-WBXT-201 NSFP ASWBXT201

Schneider Modicon AS-H819-209 7-SLOT CHASSIS SERIES 984 HSG PRIM 19 IN SYS BUS NIB

Schneider PLC Analog Output Module 170AAO12000 NIB

SIEMENS 6ES5430-4UA14 DIGITAL INPUT MODULE NIB-FS

Roland M-480V System 58 bs x 26 outputs

SIEMENS CONTROL MONITOR MIPC3510A300MGT TOUCH SCREEN

SIEMENS SINUMERIK 840D/DE NCUBOX 6FC5247-0AA00-0AA2

RELIANCE ELECTRIC NETWORK COMMUNICATIONS MODULE 57404-1G

SIEMENS CONTROLLER CARD 6SN1118-0AA11-0AA0

SIEMENS One SimoDrive 6SN1130-1AA11-0BA0 Free Ship

SIEMENS 6FC5110-0DB02-0AA2 6FC51100DB020AA2 BOARD MODULE VER T

ALLENBRADLEY2711P-T9C1OPERATORINTERFACEPANELVIEW900SERIESCREVC

Allen Bradley VersaView 1500W 6180W-15KSXPH Operator Interface Panel

ABB FBK-H High Speed DC Power Circuit Breaker, 10,000 AMP, 800VDC

ADVANCED ENERGY APEX 1500/13 1.5KW RF GENERATOR

(L27-6) 1 EATON 220600E LSE-2 CIRCUIT BREAKER L27-6

MARCONI ASX-1000-10AC NSFP ASX100010AC

ALLEN BRADLEY 1326AB-B740E-21 USPP 1326ABB740E21

GE FANUC IC3600EPSU1 USPP IC3600EPSU1

FANUC A06B-6058-H011 NSPP A06B6058H011

SIEMENS 1FT6064-6AF71-3EH1-Z NSPP 1FT60646AF713EH1

RELIANCE ELECTRIC 0-57411-2 NSFP 0574112

SIEMENS 3VF6212-1MK44-0AA0 NSFP 3VF62121MK440AA0

Siemens 6ES5 466-3LA11 6ES54663LA11

Siemens 6ES5-943-7UB11 NSFP 6ES59437UB11

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Siemens 6ES5 700-8MA11 BUS MODULES5 REFURBIS

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Siemens C7-634 6ES7634-1DF02-0AE3 Membrane Keypad

SIEMENS 6ES5-308-3UA12 NSFP 6ES53083UA12

Square D 8020 SCP-311

NOTIFIER 2-Wire Detector Interface Module MMX-2

WS-C4506-E CISCO

Siemens 6ES7231-0HC21-0XA0 6ES72310HC210XA0 FreeShip

SIEMENS SIMATIC PANEL PC 870 PC870 6AV7 743-2AC00-0AA0 Membrane Keypad

Reliance 612404-7R

Schneider Modicon DAP 210 / AS-BDAP-210 89 PT OUTPUT MODULE

Schneider Modicon AS-B373-000 USPP ASB373000

Schneider Modicon AS-T190-000 USPP AST190000

Schneider Modicon AS-BDAP-209 PLC

Schneider Modicon AS-B824

MODICON AS-B572-010 OUTPUT MODULE 0-10V ANALOG

Siemens Input Module 6ES5420-7LA11

SIEMENS 6DD1640-0AC0 EM11 I/O MODULE PG16

Siemens Output Module 505-4832

SIEMENS Simodrive / Sinumerik E52930-A3210-C5-B1 Board.

Tellabs 81.5512B GCM Rev I & J Telecommunication x8 Modules Cards/Boards

SIEMENS 6SN1118-0DM11-0AA1 6SN11180DM110AA1 SimoDrive

SIEMENS Simodrive 1FT5076-0AC01-0-Z _ 1FU1050-6AC _ encoder plug MIA

SIEMENS 6FC5357-0BB15-0AA0 6FC5 357-0BB15-0AA0 SINUMERIK 840D/DE NCU 571.5

Advantech PCM-3810 A2 PC/104

Allen-Bradley 1747-L511 Output Module

ABB BAILEY SYMPHONY CONTROLS DIGITAL IMASI23 ANALOG INPUT SLAVE MODULE 84810

ADEPT TECH 10310-70200 USPP 1031070200

(#3275) Yaskawa GPD 515/G5 CIMR-G5M4018 30HP AC Drive NIB

HORIBA OPE-435 USPP OPE435

TB WOODS WFC4030-0C USPP WFC40300C

DEMATIC KBF100-B-4 NSFP KBF100B4

COSMOS LS-1842 USPP LS1842

PACIFIC SCIENTIFIC SC-752A001-01 NSPP SC752A00101

MODICON AM-S985-042 USPP AMS985042

GRASEBY CONTROLS 34X030 USPP 34X030

Siemens 6ES5 308-3UB11 IM308 INTERFACE MODULE

Siemens 6ES5-524-3UA15 USPP 6ES55243UA15

SIEMENS 6ES5-372-0AA61/6ES5372-0AA61 EPROM MEMORY SUB-MODULE XLNT

Siemens 6ES5 103-8MA03 CPU Module 20K 24V WOW

Siemens 6ES5-375-0LA41 6ES53750LA41 N355

Siemens 6GK7 443-1EX11-0XE0 6GK74431EX110XE0 NIB

Siemens TP177B 6AV6642-0BA01-1AX0 Touchscreen Glass

Siemens 6ES5701-2LA11

Laerdal Medical Corp Monitor Interface 5060 Interface ALS Module 399

YASKAWA ELECTRIC JAMSC-B1074-1 NSFP JAMSCB10741

SIEMENS 6ES7 222-1HF22-0XA0 6ES7222-1HF22-0XA0 FreeShip

Siemens OP35 6AV3 535-1TA01-0AX0 Membrane Keypad ping Worldwide

Red Lion MLSC0000

Schneider Modicon AS-B817-116 ASB817-116 16 Isolated AC Input NIB FS

Schneider Modicon AS-884A-101 USPP AS884A101

Schneider Modicon AS-P120-000 ASP120000

Schneider Modicon AS-B236

Schneider Modicon AS-516P-007 Processor Board Rev C21 AIND/UEX

Modicon XBT H021010M138 Operator Interface Terminal

Siemens Simatic s7-300 analog b module 6ES7 331-7KB02-0AB0

TELEMECANIQUE TSXAEZ414

SIEMENS SIMATIC S5 6ES5 430-7LA12 OUTPUT MODULE

Siemens 9610 9610EH-1156-JZZB NIB Power Meter Display ION Ethernet Access

SIEMENS SINUMERIK FM-NC/810D/DE/840D/DE 6FC5203-0AB11-0AA2

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SIEMENS SIMODRIVE 6SN1123-1AB00-0AA0

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Advantech PCM-3661 A1

Allen-Bradley 2711-K5A8 PanelView 550 Operator Interface Panel

ABB 58125067 CIRCUIT BOARD

Acoustic Microscope USL ICAM Ultrasonic Sciences CSAM

AAT-AAT1107 BUCK_BOOST SOP IC Original Packing

8510A-A11-D2 ALLEN BRADLEY DRIVES REMANUFACTURED

SIEMENS 6SC6000-0NA02 USPP 6SC60000NA02

ATLAS COPCO ETD-S7-50-13-CTADST NSPP ETDS75013CTADST

ASEA BROWN BOVERI DCS602-0050-41-15000C0 USPP DCS6020050411500

MITSUBISHI MR-SA52 USPP MRSA52

INDRAMAT MAC112D-0-FD-2C/130 USPP MAC112D0FD2C130

ASCO TM10A42BR NSPP TM10A42BR

TEST PRODUCTS T73879 NSPP T73879

Siemens 6ES5-440-5AA11 USPP 6ES54405AA11

SIEMENS 6ES5 482-8MA13

SIEMENS S5 6ES5 267-8MA11 6ES52678MA11

Siemens S5 6ES5 450-8MB11 Digital Output Module

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Siemens RWX62.734/509 Controller

PreSonus FireStudio Firewire Mobile Studio Interface Bundle Extended

Honeywell 51400955-100 DCS Process Network Interface Board Module Card

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Siemens 6DD1607-0CA1 6DD1 607-0CA1 in Box

Siemens LOGO! 12/24RC 6ED1052-1MD00-0BA6 NIB

Omron 3G2A5-MP00

Schneider Modicon AS-P120-000/ASP120000 Power Supply SEALED

Schneider Modicon BOARD AS-521P-011 REV 35 /REPAIRED

Schneider Modicon AS-H819-007 NSFP ASH819007

Schneider Modicon Gould/ AS-2802-000

Schneider Modicon AS-BDAP-216

Schneider Modicon Quantum 140CPS11420 Power Supply AS-IS

Telemecanique Digital Operator Panel VL 1006366598

Schneider Telemecanique Modicon TSX3721001

Siemens6ES5-452-8MR11Output Module 4POINT 24VDC

Siemens 6AV6 545-0BA15-2AX0 6AV65450BA152AX0 Panel

SIEMENS Sinumerik 6FC5110-0DB01-0AA1 E.Stand J CPU Interface Module

GE FANUC ENHANCED COMMUNICATION MODULE IC693CMM302F

SIEMENS WARRANTY Control Board w/ 6SN1114-0AA01-0AA0

SIEMENS SINUMERIK 3/800 6FC3988-7AH20 TESTED WARRANTY

SIEMENS Moore 1/4" Air Filter Regulator 91F60 Airco 03340-60

ALLEN-BRADLEY DATALINER OPERATOR INTERFACE CAT2706-D21J8

A-B NIPPONDENSO 8500-A2D-L1B AC Servo Motor [PZ4]

AC Motor Inverter - 60 HP - 600 Volt - Three Phase Input

A06B-0572-B372#7076 FANUC SERVO MOTORS REMANUFACTURED

750 kVA Transber OLSUN Electronics 12470-480/277 - Built in 02/97 Indoor Dry

RELIANCE ELECTRIC DSA-MTR-60D USPP DSAMTR60D

ALLEN BRADLEY 5130-KAA USPP 5130KAA

ALLEN BRADLEY 200042 NSPP 200042

INDRAMAT HDS03.2-W100N-HS76-01-FW USPP HDS032W100NHS760

YASKAWA ELECTRIC CACR-SR30-TZ6SM USPP CACRSR30TZ6SM

WEST ELECTRONICS M-3800 NSPP M3800

HONEYWELL TC-CCR012 NSFP TCCCR012

Siemens 6ES5-244-3AA11 USPP 6ES52443AA11

SIEMENS 6ES5 376-1AA21 SUB-MEMORY MODULE IN BOX

SIEMENS Input Module 6ES5 436-4UB12 SURPLUS Opened Box

Siemens Adaption Casing 6ES5-491-0LA12 17790

Siemens 6ES6400-0EN00-0AA0 Micromaster Encoder FreeShip

SIEMENS MP370 12.1" 6AV6545-0DA10-0AX0 Touch Screen Display Glass

Reliance AutoMax SA 500 AC power module servo amplifier 615055-1S

Texas Instruments 505-4316

Statec Magnetic Memory Interface Module PPS8500DSS2C2

UC520-16U-4FXO-K9 CISCO 16U CME BASE CUE PHONE FL W/4FXO 1VIC

Siemens Contactor 3TF35-11 3TF3511 3TF35-11-0XM0 AC220V in Box

Modicon AS-W978-050

Schneider Modicon Pat Harrington Jr as from One Day At A Time 8X10 PHOTO 1

Schneider Modicon AEG/GOULD/MODICON/ AS-C484-265 MAINFRAME CONTROLLER RFB

Schneider Modicon AS-BDEP-013 NSPP ASBDEP013

Schneider Modicon AS-BDAP-216 Compact Out Module ASBDAP216

Schneider Modicon -AS-384A-204

Schneider Modicon DAP 216N/AS-BDAP-216N TSX Compact Current Source F20 817

Schneider Power Meter PowerLogic PM810MG

Schneider Modicon TSX Quantum 140DAI54000 Input Module 140 DAI 540 00

QX72 Mitsubishi PLC 64 Point DC Input

SIEMENS 6ES5456-4UA12 OUTPUT DIGITAL MODULE 6ES54564UA12

SIEMENS Sinumerik 6FC5403-0AA20-1AA0 6FC54030AA201AA0

Mitsubishi Communication module A1SJ71QC24N NEU BOX

SIEMENS Simodrive 6SN1118-0DM23-0AA0

SIEMENS SINUMERIK CONTROL DRIVE MODEL 6FC 3451 OJA Z

SIEMENS /MOORE QLCCM12ABN CRITICAL CONTROL MODULE NNB

Allen-BradleyPanelView 1200 Operator Interface 2711-TC1

Allen Bradley SLC 500 1746-OB16 Series D Output Module

ABB robot: DSQC 326 Robot computer for S4 cabinet - 3HAB2242-1

A06B-0146-B675 FANUC SERVO MOTORS REMANUFACTURED

01dB SIP95 Sound Level Logging Meter FFT Audio Analyzer

MULTILIN 750-P5-G5-S5-HI-A20-R-E NSFP 750P5G5S5HIA20RE

ALLEN BRADLEY 1756-L1M1 NSFP 1756L1M1

ALLEN BRADLEY 1336-B010-EOD USPP 1336B010EOD

GENERAL ELECTRIC 503014 USPP 503014

SQUARE D PHF36000M USPP PHF36000M

SIEMENS 6SE3-222-4TP87-0RA0 NSFP 6SE32224TP870RA0

BAILEY CONTROLS RDCU-02C USPP RDCU02C