AVC演示文件.ppt

1、AVC2 Presentation介紹 Fast Response, Reliable & Efficient Sag Solution 快速響應(yīng)、可靠且高效的電壓暫降解決方案,Power Quality （PQ電能質(zhì)量）,1. The power supply has become reliable! 電力供應(yīng)已經(jīng)變得可靠！ 2. Long interruptions and blackouts are rare 長期的中斷和停電少見 3. Hence increased focus on other problems因而更加關(guān)注其他問題 4. Equipment has become le

2、ss tolerant設(shè)備已經(jīng)變得容忍度更小,EPRI Has Identified Sags As The Most Important Power Quality Issue From A Financial Point Of View美國電力研究院EPRI認(rèn)為從財(cái)務(wù)損失的角度來講，短暫電壓跌落是最重要的電能質(zhì)量問題。,Voltage sags have been identified in many international studies as being the single most expensive power quality event costing industry a

3、nd commerce many billions of dollars a year. 許多國際化研究都表明，電壓跌落是造成損失最大的一種電能質(zhì)量問題，其在工業(yè)和商業(yè)領(lǐng)域每年造成的損失高達(dá)數(shù)十億美元。,Distribution Of Voltage Sags For Typical Facility工廠暫態(tài)電壓跌落的典型分布,每年暫態(tài)電壓跌落次數(shù),暫態(tài)電壓跌落程度,暫態(tài)電壓跌落持續(xù)時(shí)間,Number Of Sags Per Year每年暫態(tài)電壓跌落次數(shù),Average Facility Experiences 50 Sags Per Year 每個(gè)工廠平均每年經(jīng)歷50次暫態(tài)電壓跌落 78%

4、Of Sags Have Retained Voltage Above 60% 78%的暫態(tài)電壓跌落電壓在其標(biāo)稱值的60%以上,Distribution Connected Plants,Sag Warnings電壓暫降警告,The most common PQ pr oblem facing industry is Sag events工業(yè) 界面臨的最大電能質(zhì)量問題是電壓暫降事件 According to EPRI, sags account for 92% of PQ events據(jù)美國電科院，電壓暫降占據(jù)了超過92%的電能質(zhì)量事件 Facilities do not get advanc

5、e warnings of impending sags工廠 無法事先得到即將到來的電壓暫降 的警告 There is a solution解決辦法在這,Types of Faults故障類型,Single phase faults 單相故障= 68% Two phase (Type not specified) 兩相故障= 19% Three phase fault 三相故障= 13% Three phase faults are the most severe三相故障最嚴(yán)重,Transmission Faults傳輸線故障,Single Phase Ground 68% of Faults

6、 單相地故障68%,Balanced 3 Phase 平衡三相故障,2 Phase Ground Fault 19% 兩相-地故障19%,1995 - 2005 FAB Plant Actual PQ Results1995 2005年半導(dǎo)體制造工廠實(shí)際電能質(zhì)量結(jié)果,Semi F47 Standard標(biāo)準(zhǔn),SEMI F47標(biāo)準(zhǔn)是由半導(dǎo)體工業(yè)協(xié)會(huì)(SEMI)制定的，它對(duì)半導(dǎo)體設(shè)備能承受的電壓暫降等級(jí)的通用免疫能力作出了定義。該標(biāo)準(zhǔn)要求此類設(shè)備在遭遇電壓暫降時(shí)在紅色曲線上方能夠正常工作。半導(dǎo)體設(shè)備要求按照此標(biāo)準(zhǔn)來進(jìn)行設(shè)計(jì)。,Voltage Sag Data Semiconductor FAB 19

7、95-20051995 2005年半導(dǎo)體制造工廠電壓暫降數(shù)據(jù),Scatter Plot Of Voltage Sag Event Data For MajorSemiconductor Sites主要半導(dǎo)體現(xiàn)場電壓暫降事件數(shù)據(jù)分布圖,AVC2 Specifications規(guī)格, Full correction, three-phase sags down to 70%retained voltage三相電壓暫降至70%完全校正 Full correction, single-phase sags down to 55% retained voltage單相電壓暫降至55%完全校正 Partia

8、l correction, three-phase sags down to 30% retained voltage三相電壓暫降至30%部分校正 Partial correction single-phase sags down to 0% retained voltage單相電壓暫降至0%部分校正 Continuous “ONLINE” regulation持續(xù)“在線”調(diào)節(jié) Over and under voltage regulation過電壓和欠電壓調(diào)節(jié) Correction for voltage vector phase angle errors created by faults

9、 in the supply校正供電 故障引起的電壓矢量相角偏差 Voltage unbalance correction校正電壓不平衡,AVC2 Features特性, Fast (sub-cyclic) response 快速響應(yīng)（亞周波） Simple user controls 簡便的用戶控制 Rugged overload capability 強(qiáng)大的過載能力 Short circuit protected 短路保護(hù) Extensive diagnostics 多種自診斷能力 Fault log故障記錄 Voltage event data logging 電壓事件數(shù)據(jù)記錄 Ethe

10、rnet connectivity 乙太網(wǎng)連接功能 Modular construction 模塊化結(jié)構(gòu),AVC2 Components AVC2組件,Injection transformer which connects in series with the conditioned supply 串聯(lián)變壓器，串聯(lián)在負(fù)載與電源之間。 Inverter which provides the correction voltages to compensate for supply voltage problems 逆變器，用來提供校正電壓以補(bǔ)償電壓跌落的部分。 Rectifier which t

11、akes any net correction energy required by the inverter from the mains supply 整流器，用來從主電源部分給逆變器提供電壓補(bǔ)償所需的能量。 Static transfer switch for overload protection 固態(tài)轉(zhuǎn)換開關(guān)，用于過載時(shí)的保護(hù)。 Manual bypass switch to allow AVC2 maintenance 手動(dòng)旁路開關(guān)，維修AVC2時(shí)使用。,Single Line Diagram單線示意圖,Rating Table額定列表,Options Available可選： 6

12、00V Medium Voltage中壓 40% correction 40%校正,Modular Construction模塊化結(jié)構(gòu),Typical Factory Configuration典型的工廠配置,Graphic Display Module圖形顯示模塊,The optional Graphic display offers可選的圖形顯示模塊提供 Easy access to information對(duì)信息的輕松訪問 Visual representation of the system系統(tǒng)的虛擬展示 Event log, date and time stamped事件記錄，標(biāo)明日期

13、和時(shí)間 Fault log, date and time stamped故障記錄，標(biāo)明日期和時(shí)間 Factory tags and location data工廠標(biāo)簽和位置數(shù)據(jù) Web Browsing網(wǎng)頁瀏覽 Serial Communications串聯(lián)通訊,Graphic Display Module圖形顯示模塊,AVC Online在線,AVC in Bypass旁路,Graphic Display Module圖形顯示模塊,Event Log事件記錄,Event Summary事件匯總,Plant Wide AVC2 System Browsing工廠范圍的AVC2系統(tǒng)瀏覽,Abil

14、ity to call up individual Vectek AVCs around the Plant在工廠里可以聯(lián)系每一個(gè)威泰克AVC To view real time status 觀察實(shí)時(shí)狀態(tài) To view event logs with date and time stamp觀察帶日期和時(shí)間標(biāo)記的事件記錄 View data summary of multiple systems at once一覽觀察多個(gè)系統(tǒng)的數(shù)據(jù)匯總,Full Web and Plant System完全的網(wǎng)絡(luò)和工廠系統(tǒng),Sag Correction壓降校正,Swell Correction壓升校正,Po

15、wer Factor Correction功率因數(shù)校正,Normally the load power factor is reflected to the source通常負(fù)載功率因數(shù)會(huì)反射到電源上 Limited to 12.5% of the AVC rating補(bǔ)償量限于AVC額定容量的12.5% VAR support is momentarily reduced during a sag event無功補(bǔ)償在壓降事件期間會(huì)暫時(shí)減少,Flexibility - Greater Depth Options靈活性深度壓降的選項(xiàng),100% Load負(fù)載,AVC快速電壓調(diào)節(jié)器的性能（續(xù)）,快

16、速響應(yīng) 在1-2毫秒內(nèi)即對(duì)跌落電壓作出初步校正，然后在隨后半個(gè)周波之內(nèi)作出完全校正。在其額定校正范圍內(nèi)，對(duì)電壓暫降進(jìn)行全部校正，持續(xù)至少30秒； 供電保障 串接在客戶主線上只有AVC的注入變壓器的一組線圈，沒有半導(dǎo)體裝置被放在市電和被保護(hù)的負(fù)載之間，因此供電安全性大大高于其它同類裝置； 優(yōu)異的調(diào)節(jié)精度 當(dāng)電源電壓在90%-110%范圍內(nèi)變動(dòng)時(shí)，提供名義電壓設(shè)定點(diǎn)+/-1%之內(nèi)的連續(xù)調(diào)節(jié)。這種優(yōu)異的調(diào)節(jié)精度使得電子負(fù)載或工藝的精確性和可靠性得以改善或優(yōu)化，因?yàn)殡娫捶€(wěn)定了；,AVC快速電壓調(diào)節(jié)器的性能（續(xù)）, 不平衡電壓校正 AVC消除電源中的不平衡電壓。如果電源的不平衡被消除，那么三相感應(yīng)電動(dòng)機(jī)

17、的運(yùn)行電流將顯著減少，其壽命相應(yīng)地增加，它減少了對(duì)三相整流器的壓力； 閃動(dòng)電壓的校正 AVC能夠?qū)㈦娫炊说拈W動(dòng)電壓降到低于工業(yè)容許范圍的上限。在照明上，當(dāng)電壓波動(dòng)的頻率接近8.8Hz時(shí)，閃動(dòng)電壓變得更加顯而易見； 非常高效 AVC在全負(fù)載時(shí)典型效率大于98%，非常高效，高于其他的電壓校正配置。在不需要電壓校正時(shí)其效率大于99%； 低維護(hù) 不包含需要經(jīng)常維護(hù)的元器件，如開關(guān)和電池；,AVC快速電壓調(diào)節(jié)器的性能（續(xù)）, 高可靠性 不會(huì)使負(fù)載斷電，因?yàn)椴捎萌哂囔o態(tài)開關(guān)備用及維護(hù)旁路；AVC所使用基于逆變器的技術(shù)的可靠性已被超過15年的工業(yè)應(yīng)用所驗(yàn)證； 堅(jiān)實(shí)的過載能力 在提供10%的連續(xù)校正時(shí)，亦有額

18、定150%的過載能力； 現(xiàn)代微處理器控制解決方案 AVC輸出電壓是完全數(shù)字控制，利用內(nèi)置于控制電路的一個(gè)32位數(shù)字信號(hào)處理器，通過必要的控制、測量、指示和報(bào)警來讓操作者監(jiān)視系統(tǒng)狀態(tài)和性能；,AVC Fast Response快速響應(yīng),50% Single Phase Sag Retained Voltage Performance50%單相壓降剩余電壓性能,70% Retained Balanced 3 Phase Sag Performance70%剩余平衡三相壓降性能,30%Avc 3 Phase Balanced Event performance Graph30% Avc 三項(xiàng)平衡事件

19、性能圖,30%Avc Single Phase Event performance Graph30% Avc 單相事件性能圖,AVC2 Sizing and Selection AVC2容量選擇,AVC2s are rated in kVA. First measure or calculate the maximum continuous load kVA or system kVA. AVC2的容量選擇：首先測量或者計(jì)算最大不允許間斷的負(fù)載容量或者關(guān)鍵供電系統(tǒng)的KVA值 Calculate or measure the maximum commonly occurring sag leve

20、l in percent reduction from nominal (% sag max). 計(jì)算或測試最高常見電壓降（ %壓降最大值）,AVC2 Sizing and SelectionAVC2容量選擇,Calculate the maximum tolerance connected loads have to utility reductions before problems occur (% load tolerance 計(jì)算負(fù)載對(duì)電網(wǎng)電壓跌落的最大承受值用A表示 The minimum AVC2 percentage boost requirement for the appl

21、ication will be = % sag max - % load Voltage tolerance AVC2所需補(bǔ)償?shù)谋壤?%最大電壓跌落值-%負(fù)載能承受電壓跌落值 The minimum AVC2 percentage buck requirement can be calculated in a similar way knowing the likely maximum over-voltage level. 電壓升高時(shí)同樣計(jì)算。,Example 例子,Major Sag Correction Device Manufacturer Does Not Begin Correct

22、ing For Sags Until Voltage Drops Below 87% 當(dāng)電壓低于額定電壓的87 AVC2投入運(yùn)行 This Assumes All Equipment Can Operate Continuously Through A 13% Sag 因而假定所有設(shè)備可以在13 的暫態(tài)電壓跌落時(shí)能正常運(yùn)行,What Are The Applicable Industries ?應(yīng)用范圍,Continuous Process Industries. 連續(xù)生產(chǎn)工業(yè) Paper造紙 Glass (including Fibre Optics) 玻璃（包括光纖） Steel and

23、metal 冶金 Wood Processing 板材 Plastics 塑料 Food and Beverage Processing (dairy etc)食品和飲料加工（奶制品等） Petrochemical 石化 Chemical 化工 Semiconductor (meets SEMI 47)半導(dǎo)體 Automotive 汽車 Mining (underground mining skids for line drop) 礦產(chǎn),Conclusion結(jié)論,1. AVC is specified for three phaseEquipment. AVC是專用于三相負(fù)載的設(shè)備 2. AV

24、C is rated from 20kVA low voltage to 10MVA medium voltage. AVC從低壓20kVA到中壓10MVA以上都可以應(yīng)用 3. Online operation, AVC is capable to correct sag, swell as well as power factor. 在線運(yùn)行，AVC不僅能校正電壓暫降，而且可以校正電壓暫升，并可修正功率因數(shù),Field Measurements Case 1現(xiàn)場測量-案例1,AVC2 Input Voltage AVC2 Output Voltage,L-N Volt V1=82 % V2=58 % V3=87 %,L-N Volt V1=97 % V2=98 % V3=97 %,Can correct the voltage sags close to your critical equipment and prevent unplanned stoppages,2MVA, 26kV, AVC Bacardi Rum, Jacksonville, Florida2MVA, 26kV AVC巴卡第浪姆酒廠, Jacksonville, Florid