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近年來,隨著國內(nèi)外大批的太陽能光伏電站的建立和并網(wǎng)發(fā)電,作為光伏發(fā)電的關(guān)鍵設(shè)備光伏并網(wǎng)逆變器具有廣闊的市場前景。
本文主要介紹WEINVIEW觸摸屏在太陽能光伏并網(wǎng)逆變器中的應(yīng)用,在這個系統(tǒng)中,觸摸屏和逆變控制器通信,完成相關(guān)的數(shù)據(jù)采集,資料的保存,報警信息的登錄,圖文并茂顯示逆變器運行參數(shù)和實時狀態(tài),并通過485或以太網(wǎng)和上位計算機(jī)進(jìn)行遠(yuǎn)程通訊,實現(xiàn)整個并網(wǎng)電站的實時監(jiān)控和調(diào)配。
關(guān)鍵詞:光伏 逆變器 觸摸屏 DSP
1 引言
隨著全球經(jīng)濟(jì)的迅猛發(fā)展,各行業(yè)能耗加劇,石油、煤炭等傳統(tǒng)化石能源日趨枯竭。世界各國都把目光投向了可再生能源,希望可再生能源改變?nèi)祟惖哪茉唇Y(jié)構(gòu),維持長遠(yuǎn)的可持續(xù)發(fā)展。在可再生能源中,太陽能以其獨有的優(yōu)勢而成為人們關(guān)注的焦點。太陽能是取之不盡、用之不竭、無污染的綠色能源。世界各國都在投入巨資建設(shè)大規(guī)模的太陽能發(fā)電站。我國在光伏研究和產(chǎn)業(yè)方面也取得了較快的進(jìn)展,2006年1月1日實施的《可再生能源法》,標(biāo)志著太陽能發(fā)電已納入我國的能源發(fā)展規(guī)劃之中。根據(jù)2007年9月發(fā)布的《可再生能源中長期發(fā)展規(guī)劃》,2020年,我國太陽能發(fā)電設(shè)備累計裝機(jī)容量將達(dá)到2000MW 。
太陽能光伏并網(wǎng)逆變器是整個光伏發(fā)電系統(tǒng)中最為關(guān)鍵的設(shè)備之一,它是把太陽能電池板產(chǎn)生的直流電能轉(zhuǎn)換為交流電能的設(shè)備,運行過程中需要多個參數(shù)進(jìn)行監(jiān)測、計算、顯示、記錄、保存、報警等處理,需要和上位計算機(jī)、逆變控制器、無線GPRS模塊進(jìn)行通訊,實現(xiàn)數(shù)據(jù)交換。本文主要講述WEINVIEW觸摸屏在太陽能光伏并網(wǎng)逆變器中的應(yīng)用。
2 系統(tǒng)原理和方案設(shè)計
太陽能光伏并網(wǎng)逆變器是把太陽能電池板通過光伏效應(yīng)產(chǎn)生的直流電能進(jìn)行逆變,轉(zhuǎn)換成同電網(wǎng)同頻率、同相位的交流電,接入電網(wǎng)對外進(jìn)行輸電。逆變器運行中要把測量的實時參數(shù)送給觸摸屏,進(jìn)行顯示、記錄等操作,也可和上位機(jī)通訊進(jìn)行遠(yuǎn)程監(jiān)控功能。系統(tǒng)結(jié)構(gòu)圖如下圖所示:
圖1 系統(tǒng)結(jié)構(gòu)圖
3 WEINVIEW畫面設(shè)計要求
本系統(tǒng)采用WEINVIEW MT8100I型號觸摸屏,高品質(zhì)10寸寬屏設(shè)計,LED背光模組;采用400MHz RISC CPU,使運行速度更快;內(nèi)置電源隔離保護(hù)器,提高了產(chǎn)品的抗干擾能力,適應(yīng)復(fù)雜環(huán)境下運行;多種標(biāo)準(zhǔn)的通訊接口和網(wǎng)絡(luò)協(xié)議,方便用戶使用;大容量的數(shù)據(jù)存儲功能,并且可以直接存儲或備份到U盤、SD卡或上位機(jī)上,滿足逆變器運行過程中產(chǎn)生的海量數(shù)據(jù)信息。
3.1 觸摸屏主界面設(shè)計
主界面顯示逆變器運行的各種運行參數(shù):PV電壓、PV電流、A、B、C三項交流電壓和電流、功率因數(shù)、電網(wǎng)頻率、輸出功率、日發(fā)電量、總發(fā)電量、CO2減排量等,逆變器運行狀態(tài)指示,實時時間,以及其他操作菜單。下圖分別是主界面的中英文顯示菜單。
280-PWRM24H-M2 ArmorConnect 3-PH Power Media drop cable
FRN 2. 2E1S-4C 4. 1KVA 5.5A 2.2KW 3相AC380V/50Hz/60Hz
6ES7 315-2AG10-0AB0 CPU315-2DP,128KRAM,MAX16384DI/O,1024AI/O,MMC
ADAM-4019 8路通用模擬量輸入模塊
PXI-2554
EmCORE-i413A
QTP-5500 IMT 2000
NuPR0-840
DSA628/328
IPC-6105P4
SYS7180CVE
1492-MCS5X10 IEC 5 x 10 mm Marker Card
1494V-LL3 DiISCONNECT SWITCH ACCESSORY
軟啟動器 3RW44662BC44
CIMPONNODE300M CIMPLICITY Upgrade to On-Node 300 Tag Standard Edition Historian with Alarm & Event Option ??
GF-5003R Connecting FlashCable to Ametek Accuforce III, IV.
IC200UDR164 VersaMax Micro 64 point PLC,(40) 24VDC In, (24) Relay Out, 115/240VAC Power Supply. (1) serial port and (1)optional communication port.
IC647A30M A30:ABB Kent Taylor Mod 30
IC647PATMODB Proficy PAT - Modbus Slave Interface: Provides The Capability To Interact With Other Systems Via The Modbus Protocol
IC693BEM321RR I/O Link Interface Module (Master)
IC752SKT003RR Datapanel H Starter Kit: Includes Datapanel H (DPH000), download & co mmunication cables, WinCfg, user & programming manuals
IMC-200D-X-DRR IMC-D Series Ampless Servo Motor Controller, Standard
SLC/1746 System 1747-BAJMPR BATTERY JUMPER FOR PRGRMMABLE CONTROLLER
Industrial Computers 6189V-MRA17 RACK ADAPTER FOR 17" PLATFORMS
Application-specific products 1404-M605A-CNT 1404-M6 CONTROLNET PM3000 120/240V P.S.
Operator Interface 2711-K10C3 PV1000 COLOR KEY, DH485 & RS232 PRINT
Support 9301-2SE3200PTR SUPT REINSTATEMENT CONTRACT FOR 93012SE3200PT
Support 9380-RSBVB2500S SUPT RENEWAL CONTRACT FOR 9380RSBVB2500
DeviceNet Products 1792D-4BVT4D 4 SINK/SOURCE INPUTS, 4 SOURCING 0.5 AMP OUTPUTS
RSI Software Products 9301-2SE320JPU1R RSVIEW32 RUNTIME 150-300 UPGRADE OUT-SUPT (JP)
RSI Software Products 9358-BRE01ENE RSBIZWARE BATCH REPORT EDITOR
Motion Control MPL-B4530F-SK24AA MOTOR,SERVO,8.36 NM,2800RPM,SINGL,460V,BRK
Motion Control 2090-SCVP3-0 SERCOS FBR CABL,CONN,STANDARD PVC JKT,PLASTIC 3.0M
GQBH2D100L2P QUICKPANEL 6" LCD HAND HELD BUNDLE GE LABEL
IC646MPS001 Logic Developer - PLC Standard
MTR-1350-E-A-E-0 Stepping Motor Nema34, Parallel Wdg, Encoder
QPKCGDE0000 6 inch TFT QuickPanel with GE Fanuc label/ Ethernet/ Compact Flash/ 24 VDC/ UL/cUL & CE Approvals
20BC043A0AYNACC0 PowerFlex 700 AC Drive 43 A at 22 kW 20B
20F11NC2P1JA0NNNNN PowerFlex 753 AC Packaged Drive
22-JBAC PowerFlex 40-40P-400 Conversion Kit
2711P-RGT6 PV Plus 600 Touch Antiglare Overlay
280S-PWRM24A-M2 ArmorConnect 3-PH Power Media drop cable
C200H-CN711 擴(kuò)展連接電纜, 70cm
PCL-726 6ch D/A輸出,12BIT,14KHz,輸出范圍:0-5V,0-10V,±5V,±10V,4-20mA
PCI-6711
GENE-4310
IPC-6106P4
C806MCP
PCM-9362
CS250LM 5.1/12.1
1492-LD4RB333 Terminal Block, Resistor, 33.2K Ohms
1494F-L4 Door Hardware Kit
軟啟動器 3RW44352BC36
BC647OPPMK01 OEM Edge Plant Apps M4 Key includes 1 physical M4 key that authorizes Proficy Plant Apps as well as all core products
GC647PATPIRO Proficy PAT - Pirouette Interface: Provides The Capability To Interface Proficy Rx To Infometrix? Pirouette Chemometrics Software -
IC200MDL140 Input 120VAC (1 group of 8) 8 point.
IC646NSL825 Proficy SQL 2008 - 25 CALs using Client Access licensing model
IC647MELC MEL:Mitsubishi Melsec
IC676ACC002 Protective Caps - Male (For unused I/O connectors and/or outgoing bus & power connectors) - Qty 5
IC697MEM715 Expansion RAM, 128K Bytes, CMOS (Used w/77X CPUs and PCM)