Bill Tuan Anh va Dig Tap chi KHOA HOC & CONG NGHE 128(14): 11-15 NGHIEN c i r u HE THONG BIEU KHIEN VA GIAM SAT CAN THEP TRONG CONG TY CAN THEP THAI NGUYEN Bui Tufin Anh , Nguyen Thi Thu Hiei Truang Dai hoc Cong nghe Thong tin (S- Trin en ihong DH Thai \'giiyei TOM TAT Doi vol cac nha may can thep Thai Nguyen hien dS dugc xa\ dung tir nhung nam 2002, vdi cong nghe Danieli- Italia kha hien dai luc bay gio Tuy nhien qua khao sat tim hi^u, thi hien tai khu virc can can thep ciia nha may can thep dang sii dung cac bp PLC S7-400 v^ cac module md rpng de dieu khien va giam sat khu virc can thep Vi the bai bao chimg toi se irng dung cac module co sSn cua nha may roi tir dua cac giai phap di^u khi^n va giam sal HMI tren n^n Simatic S7-400 va WinCC Til- khoa: SCADA thugl toan diSu khien.Looper PLCS7-400 DAT VAN DE Thiet ke he thong tu dpng hda va dieu khien cho nha may Can thep Thai Nguyen la mgt bai toan Idn va phuc tap, Trong nha may can thep Thai Nguyen d khu virc can thep dugc \a\ dung he thong dieu khien va giam sat SCADA de thg van hanh de dang giam sat va dieu khien day truyen tii xa Tram dieu khien khu vuc gia can co rat nhieu chuc nang nhu: dieu khien toe dp can, dieu khien luc cang giiJa eac gia can, dieu khien khe ho giira hai true can, dieu khien may cat, dem, dong bd va tao eudn De chit lugng can thep tot thi viec dieu chinh dong tdc dp giiJa cac dong co can la bai toan kho khan Tae dung ciia viec dieu chinh tdc dp va lire cang ciia cac gia can la de cho qua trinh can thep khdng phai la can day hay can keo ma la qua trinh can tir Day chuyen can ciia cdng ty thep Thai Nguyen la day chuyen can ndng lien tuc, co yeu cau dieu chinh d viing rpng va sire cang phai dam bao khong doi vdi dp chinh xac cao Trong bai bao tac gia di sau vao viec nghien ciiru tai vj tri giua hai gia can #12 va #13 thep dugc tao triing vdi triing yeu cau la 20'^'" {h^20'^"') Nham dap ung yeu cau tren, ta ap dung he thdng truyen ddng dieu chinh ddng bg tdc va sire cang bang di6u chinh dien ap phan irng, diing ngudn cung cap rieng d^ trang bj cho dong ca truyen dgng gia can 12 i' Email hianh'ificiuedu.v PHUONG PHAP NGHIEN CUD Ta cd so dd nguyen ly ddng bg toe va lire cang qua khao sat nha may cd sa dd nhu sau: Hinh Sado nguyen ly dong bo toe vd luc cang Ta coi tir thdng C bang hang so liie he truyen dpng ed ba mach vdng tham gia Mach vdng ddng dien, mach vdng on dinh tdc dp va mach vdng dn dinh luc cang Ta thay rang neu ed su sai lech ve tdc dd thi nhd khau dp dai PL de dieu chinh lai toe dp de dam bao vn" = vn+l', Trong dd vn" : la tdc dp phdi thep gia can n vn-i-l' : la toe dp phdi thep gia can sd n+1 Tir so nguyen ly ta cd so cau triic nhu sau: :- H S Hinh Sa cau true dong bo tdc vd luc cdng II Bui Tuan Anh vd Dtg Tap chi KHOA HOC & CONG NGHE Trong khoi I la bd dieu chinh toe do, khoi la bp dieu chinh ddng dien Khoi 3,4,5 la ham truyen ciia bg bien doi va ddng ca dien mot chieu Khoi la khdi quan he tdc dp va chieu dai vat lieu (khdi tich phan) Tu dp dai ciia vat lieu, can cir vao khoan each giua hai gia can ta se tim dugc triing ciia thep thong qua khoi Dp cao H dugc se dugc sensor quang chuyen doi tin hieu dien ap thdng qua khoi Tin hieu tii' khdi se dugc so sanh vdi dien ap dat va sai lech dua ve bp dieu chinh luc cang Trong qua trinh lam viec, phdi thep phai dam bao che dp can tu Vi vay phoi di qua giira hai gia ludn phai cd mot triing nhat djnh Qua khao sat he thdng truyen dpng dien tai gia can sd 12 Va sir dung cac phuang phap tong hgp he thdng Sir dung chirong trinh md phong Matlap Simulation ta kiem tra nhu sau' Ta phat cac tin hieu nhieu vao he thdng d nhirng vj tri: cao, dp dai va ta dua tdc dp ciia gia can sau vao (#13) va quan sat su thay ddi ciia he thdng De lam dugc viec 66, ta xay dung ba he thdng, mgt he thdng lam chuan, hai he thdng cdn lai ta se giam tin hieu nhieu ciia mot he thdng va tang tin hieu d he thdng cdn lai Ta dua dac tinh dp dai, dp cao, toe dp, ddng dien ciia ca ba he thdng scope de quan sat sir thay ddi ciia he thdng qua trinh qua dp IS Hinh Sa khdi dong bo toe vd luc cdng Vdi thdng sd ciia ddi tugng va thong sd cua bd dieu khien nhu tren Ta md phdng duac dac tinh dgng cua he thdng cd sir thay doi toe dp ciia gia can sd 13 Nhan xet: Qua viec khao sat chat lugng he thong gia can sd 13 thay ddi thi viec ddng bg tdc va luc cang tai gia can so 12 dam bao chat lugng tinh va dgng vdi Nhu vay 128(14): cao eua phdi thep dn djnh d ch^ dp dat vdi thdi gian trS (0,5s) va dp qua dieu chinh (3,24% < 10%) thda man yeu cau cdng !i? can thep tai gia can sd 12 Hinh 4: Dac tinh tdc dd co su thay doi tdc d cua gid cdn #13 Hinh 5: Dac tinh cao (H) co su thay doi tdc cita gid cdn U13 THIET KE HE THONG DIEU KHIEN VA GIAM SAT TAI KHU VUC CAN THEP CUA NHA MAY Cau hinh phan cung Bai toan dieu khien he thdng can thep bao gdm bai toan dieu khien ddng dien, dieu khien tdc true can va dieu khien luc cang Thiet bi tdc dp la may phat toe, thiet bi luc cang, thiet bi ddng dien Do vay tong cong la cd dau vao sd va dau tuong tu tai mot gia can Can cir tren bai toan dieu khien da dat va sd lugng dau vao, dau (gom cac thigt bj Ao, thiet bi chap hanh) ta lua chgn cau hinh phan eimg ciia he thdng di^u khien Cac dau vao tuong tu Tin hieu cac dau vao tuong tu la tin hieu cac thiet bi ciia cac viing, bao gdm: Thiet bi ddng dien, tdc va lii'c cang Cac thiet bi deu dugc chuyen doi tin hieu dien ap chuan 0-1OV de dua tdi cac module tuong tuAI Cac dau tuang tir Cac dau tuong tu bai toan dieu khiln d day chinh la cac triet ap de dieu khien goc md a cho bg bien ddi de thay ddi dien ap dat vao phan irng ddng ca Thiet bi lap trinh Thiet bj lap trinh dugc sir dung d day la may tinh PC cd the cai dat dugc phan mem duoc Bill Tuan Anh vaDtg Tap chi KHOA HOC & CONG NGHE SII dung la hai phan mem mdi nhat hien eita hang Siemen; Phan mSm Step7 v5.5 va phan mSm WinCC 7.0 Thiet bi ghep noi truyen thong De cd the k8t noi tram PLC vdi may tinh PC thi can phai cd thiet bj ghep noi truyen thdng Cac thiet bj ghep ndi truyen thdng duge sir dung la: - Mot cap truyen thong theo giao thirc MPI - Mgt Card CP5611 (32 bit) de ket noi PC vdi PLC S7-400 thdng qua giao thirc MPI Cau triic dieu khien hS thong ddng bp toe va luc cang tai gia can so 12 Cau true he thdng dieu khien ddng bd tdc va lire cang tai gia can sd 12 nhu sau: Hinh Cau true he thdng dieu khien gid cdn sd 12 He thdng dieu khien luc cang cua gia can sd 12 sir dung bd dieu khien noi cap nhu hinh He thdng sii' dung hai bd dieu khien tdc dp Rfy diing de dn djnh tdc dp gia can va Ri la bd dieu khien ddng dien de on dinh dong dien Dau la chinh la goc dieu khien a ciia mach phat xung dimg de thay ddi dien ap dat vao phan irng ciia ddng co dien mgt chieu gia can sd 12 Bd dieu kh'en RT ed nhiem vu la on djnh dien ap luc cang theo gia tri dat lire cang va bu toe dp ddng ca gia can sd 12 Thiet kc chuo'ng trinh dieu khien tren nen STEP Chuang trinh dieu khien he thdng can bao gdm viec doc cae tin hieu dau vao tuong tu tii' cac cam bien ddng dien dugc lay thdng qua may bien ddng may phat tdc va Looper de dau la tdc dg quay cua gia can sd 12 dat 128(14)' 11 - 15 yeu eau cdng nghe Dieu khien ddng bd tdc dp va luc cang la dieu khien gia tri luc cang theo tin hieu dat tire la dieu khien tde dp dgng CO dn djnh d gia trj luc cang d gia tri dat dd De viet chuang trinh dieu khien tru'dc hSl can xay dung luu thuat toan dieu khien ddng bd tdc dd dgng ea va luc cang, JJniat loan dieu khien dong bo toe va liit cang Toan bd chuong trinh dugc viet OB35 Thdi gian trich mau T (mac dinh T=IOOms) cd the thay ddi dugc bang caeh vao phan mem Step7 Thuat toan dieu khien iuc cang tai gia can sd 12 duoe thuc hien tuin tu Tii' viec xir ly tin hieu de dua tin hieu qua trinh, sau dd tin hieu qua trinh duoc tinh toan dieu khien de dua tin hieu bii dien ap dat vao bd dieu khien tdc dp Tir gia trj dat va dd vong ciia cay thep theo thirc te ma Looper xac djnh dugc, chuong trinh se tinh toan lugng sai lech giira hai gia tri tren dd tham gia vao khong che tdc dgng ca tang hay giam de giir cho vong ciia cay thep ludn khoang gia trj dat nhd khdi FB 41, de dam bao che dp can tir giua hai gia can Tir gia trj dat tdc \ a lugng bu dien ap ciia dau luc cang va trir di dien ap phan hoi cua may phat tdc ve chuang trinh se tinh toan lugng sai lech giira hai gia tri tren dd tham gia vao khong che t6c dp ddng ca tang hay giam de giir cho tdc ddng co ludn khoang gia tri dat Tir gia trj dat tdc dd va lugng bii dien ap ciia dau luc cang va trii di dien ap phan hoi eua may phat tdc ve chuang trinh se tinh toan lugng sai lech giu'a hai gia trj tren dd tham gia vao khdng che ddng dien ddng ca tang hay giam de gitr cho ddng dien ddng ca ludn khoang gia tri dat THIET KE GIAO DIEN GIAM SAT Yeu cau thiet ke Thiet ke giao dien HMI de dieu khien gia can sd 12 va sd 13, phan giam sat va phan canh bao Ve phan dieu khien phai dat dugc triing de dam bao can tu giiJa hai gia can dat dugc cac tham so bd dieu khien PID ciia lire cang, tdc va ddng dien giua hai gia can Tap chi KHOA HOC & CONG NGHE BiJi Tuan Anh vd Dtg 128(14); 11 Ve phan giam sat phai the hien dugc luc tdc dp va dong dien giUa hai gia can va bieu dien bang thj va bang sd Ve canh bao phai canh bao dugc tinh trang thiet bj (loi hay khdng Idi) Thiet ke giao dien HMI fu yeu cau ve thiet ke giao dien HMI de dieu khien va giam sat he thdng can d tren, ta di vao viec thiet ke giao dien Giao dien thiet ke gdm eac trang man hinh chinh nhu sau: Man hinh tong quan khu vuc can, man hinh dieu khien va giam sat cho bd difiu khien luc cang, bp dieu khien tdc do, va bd dieu khien ddng dien Va cae man hinh nhu sau: Bargraph, Looper, Trend, Print,Help X B '"'f-p^ MfTT Hinh 10 Kit qua chay thu nghlem •i^s^s-:-;^- -? t % -;-j 4^ — < ! t 'f^v [=- mmmat^ Sj > E • • • • • ' • Hinh I \ Giao dien theo doi luc cang tai gid cdn sd 12 i Hinh Giao dien tong quan khu vuc cdn iJUg^nwpiiii ô=#""" y t ã * ^ cm cii] CZ3 - • •11 Hinh 12 Giao dien iheo dot loc tai gid cdn sd 12 : HH » >i Q + is •• O S a - u - if - Hinh Cdi dat tham sd PID luc cdng KET QUA DAT DUOC Budc cuoi ciing ciia viec thiet ke he thdng tu dgng hda la cai dat phan mem, lap dat he thdng \a danh gia ket qua 14 KET LUAN Nhu vay chimg ta da nghien ciru va thiet ke he thdng dieu khien va giam sat he thdng dieu khien can thep He thong dieu khien dugc lira chgn d day la he Simatic S7-400 ciia hang Siemen Phan mem dugc sir dung de thiet ke giao dien giam sat la phan mem WinCC 7.0 sp2 Sau thiet ke phan mem dieu khicn thi^t ke phan mem giam sat he thdng dieu khi^n can thep, chung ta dau ndi cac thiet bj in thi^t vao he thdng dieu khien, cai dat cac Bill Juin Anh vd Dtg Tap chi KHOA HOC & CONG NGHE tham so bd diSu khien PID va download chuong trinh ien bd PLC S7-400 k6t qua md phdng cho thdy thigt ka dua la thich hgp Tuy nhien k6t qua van chua dugc kiem chirng tren he thdng can thuc te TAI LIEU THAM KHAO Biii Qu6c Khanh, Pham Ou6c Hai, Nguyln Van Liln, Duang Van Nghi (2008) Di^u chinh tu ddng truyen ddng dien, Nha xuat ban Khoa hoc va Ky thuat 128(14): 11-15 Biii Quoc Khanh, Nguyln Van Liln (2007; Ca ' ^ - ^ " ^^"^ ^''"' ^^^ '"'^ ^'" '^^°' *"=" " ' s.^Ho^ng Minh Son (2006), Ca sa he thdng ddu khien qua trinh,'Hhd xuk ban Bach khoa Ha Noi *• ^^uyen Doan Phudc, Phan Xuan Minh, Vu Van Ha (2000), Tv ddng hda vdi Simatic PLC S7-300, Nha xuSt ban Khoa hoc va Ky thual (nam 2000) Nguyln Van Hoa (2001), Ca sa ly ihiiyit diSu Aft/e/j ?W(/d/7g, Nha xuat ban Khoa hoc v& ky thuat Nguyln Thuong Ngo (1998), Ly thiiyit diiu khien tu ddng hien dgi Nha xuat ban Khoa hoc va Ky thuat SUMMARY CONTROL SYSTEM RESEARCH AND MONITORING IN STEEL COMPANY OFFICERS AND PERSONNEL Nguyen Thi Thu Hien , Bui Tuan Anh College of Information and Communication Technology - TNU In the Thai Nguyen steel mill now was construction in 2002, with Danieii- Italian technology quite modern at the time But the survey to find out, the current area of the steel rolling steel mill is using the PLC S7-400 and expansion modules to control and monitor the steel sector So in this aiticle we will apply the module is available froin the factory and offer solutions that control and monitoring based on Simatic HM! and WinCC S7-400 Key words: SCADA, control algorithms, Looper PLC S7-400 Ngay nhan bdi.01/10/2014 Ngay phan bien: 15/10/2014 Ngdy duyet dang 25/11/2014 Phan biSn kiwa hoc: TS Dd Trung Hai ~ Trudng Dai hoc Ky thuat Cong nghiep - DHTN Tel 01692 47H758 Email hianlMictu edii v ... Qu6c Khanh, Pham Ou6c Hai, Nguyln Van Liln, Duang Van Nghi (2008) Di^u chinh tu ddng truyen ddng dien, Nha xuat ban Khoa hoc va Ky thuat 128(14): 11-15 Biii Quoc Khanh, Nguyln Van Liln (2007; Ca... S7-300, Nha xuSt ban Khoa hoc va Ky thual (nam 2000) Nguyln Van Hoa (2001), Ca sa ly ihiiyit diSu Aft/e/j ?W(/d/7g, Nha xuat ban Khoa hoc v& ky thuat Nguyln Thuong Ngo (1998), Ly thiiyit diiu khien... MONITORING IN STEEL COMPANY OFFICERS AND PERSONNEL Nguyen Thi Thu Hien , Bui Tuan Anh College of Information and Communication Technology - TNU In the Thai Nguyen steel mill now was construction in 2002,