Tgp chi Khoa hgc Truong Dgi hgc Cdn Tha Phdn A Khoa hgc Ty nhiin, Congnghi vd Moi Iruang 26 (2013) 44 5 ^ W ^ ^ ^ Tap chf Khoa hoc Tru''''dng Dai hoc Can Thd 1 ^ ^ J ^ F ^ website sj ctu edu vn 1 ^W ,*»[.]
Tgp chi Khoa hgc Truong Dgi hgc Cdn Tha ^W^^^ ^^J^F^ ^W Phdn A Khoa hgc Ty nhiin, Congnghi vd Moi Iruang: 26 (2013): 44-5 Tap chf Khoa hoc Tru'dng Dai hoc Can Thd website: sj.ctu.edu.vn 1 ,*» nmABOc _ P H O I HOfP C A C T O M A Y P H A T N H I E T D i f N Dao Minh Trung' ' Bo mon Ky thugt dien, Khoa Cdng nghi, Tneang Dgi hoc Cdn Tha Thdng tin chung: Ngdy nhgn: 08/01/2013 Ngdy chdp nhgn: 19/06/2013 Title: Unit Commitment Tie khda: Thi trudng dien, nhd ddu tu, nhd mdy diin, lai nhugn cao nhdt, phoi hgp cdc to mdy Keywords: Electricity Market, Investor, Power Plant, The Highest profit, Unit Commitment ABSTRACT Nowadays, generating electricity from plants hasn Y met demand using electricity of customers more with every passing day, so bring about short of electricity problem from generator Consequently, electricity market development problem is considered important element which gives help to inventor can calculate and invest more and more in improving reliability about supplying electricity and raising generating power electricity of systems To develop more complete electricity market, break sole of generating electricity as presents, help users have chance is free in choice suitable generating electricity power with demand of using electricity At that time, investors will also calculate how to contribute more capacity in electricity market and get the highest benefit in bicying and selling electricity processes TOM TAT linh hinh phdt diin tH cdc nhd mdy nhir hien chua ddp ung duoc nhu cdu su dung dien ngdy cdng nhieu ciia ngudi sir dyng, dSi den vdn de thieu hut dien tu cdc nguon phdt Do do, vdn di phdt trien thi truong dien dirge xem Id yeu to quan trgng giup cdc nhd ddu tu xem xet tinh todn vd ddu tu nhiiu han niia viic cdi thien tin cgy cung cdp dien vd ndng cao cong sudt phdt dien ciia he thong De phdt trien thi trudng dien hodn hdo hon, phd vd the dgc quyen viphdt diin nhu hiin nay, giiip ngudi su dung dien cd ca hgi tif lua chgn nguon phdt phii hgp nhu cdu sir dung dien cua minh Dong thdi cdc nhd ddu tu cung se tinh todn nhu the ndo de tham gia nhieu cdng sudt len thi trudng dien vd thu du(rc lgi nhudn cao nhdt qua trinh mua bdn dien DATVANDE Nude ta dang frong giai doan thyc hidn van hanh theo co chd thi trudng d khiu phat didn (nha may dien), se tidn tdi thi tnrdng ban budn va sau dd la thi trudng ban le theo Id trinh Chinh phu da de (dang chuydn tu dgc quydn Nha nude sang ca ciu thi trudng canh franh) Dd tang tinh canh franh, ddi hdi van hanh cac nhi miy didn khdng nhung dap ung ydu cau dat vd vd sd lugng, chat lugng va tin cay cao vdi gia thip nhat ma cdn chu y den cac didu kidn ring budc phdi hgp cic td miy phat frong cung mgt nhi may didn, giua cac nha may didn frong he thdng Ddng d gdc nha dau tu thi phii tinh toan chi phi phat didn cua nha may cho thap Tgp chi Khoa hgc Trudng Dgi hoc Cdn Tho Phdn A: Khoa hoc Ty nhien, Cong nghi vd Moi iruang- 26 (201 nhit dd tham gia vao vide mua bin didn, chio gia va phat didn vao thi trudng ldn nhit, nhim thu dugc Igi nhuan tdi da, nhung ngudi sd dung didn chi phi cho vide su dung dien vdi gia re nhit cd thd, dac biet la cac nha may nhidt didn gii sin xuat kW dien cao hon so vdi cac Ioai nha may didn khac Mudn dugc nhu vay, cac nhi may phat nhidt didn phai tinh loan dua kd hoach van hinh cic td miy phit didn mdt cich hgp ly nhit De giai quydt bai loan van hanh toi mi cac td may phit dien thi trudc hdt phii dua vao him chi phi phit dien cua tiing td miy Td do, thinh lap md hinh toan hgc de tinh lgi nhuin tdi da cua cac to may phat didn vdi gia didn frdn thj trudng xac djnb tai moi thdi diem Tir tinh cin thiet niy, dd tai "Phdi hgp cic td may phat nhidt didn" dugc dat va dng dyng cic thuat toin dd tim Idi giai phan bd cdng suit tdi uu giiia cic td may frong nha may Trong nghien cdu cda dd tai se xet frdn cac nhi miy nhidt didn, van hinh on dinh (co cdng suit nhd) va xem cdng suit ngudn td cac nha miy di?n ludn luon dip dng du tai Bdi todn t6i uu cdc to mdy phdt (uc - unit commitment) Phan bo tdi uu cac td miy phat didn (nguon phat) Ii sy bo fri phat cdng suit tai cic nguon phat cho chi phi tidu hao nhidn lieu la thap nhat, nhung phii dam bio vd dp tin cay cung cip dien va chat Iugng didn nang Viec nghidn cuu phuorng thdc phan bd tdi uu cdng suit he thdng didn khdng nhung nang cao tinh kinh te frong van hanh ma cdn ddng gdp vao tinh chinh xac va hgp li qui hoach, thidt kd he thong dien M TA BAI TOAN NGHIEN CUtJ Bai loan se phdi hgp cac td may phat didn dd dat Igi nhuan cue dai Td cic sd lidu ban diu cda tung td may nhu: cdng suat cyc dai, cdng suit cue ti^u, cac hing so chi phi nhidn lieu cua t6 may, kha nang tang cdng suit, kha nang giim cdng suit cda td may, va gia didn san trdn thi trudng Trong qua frinh tinh loan de giai quydt bai toin, gia thuydt thi trudng dien la thi ttudng canh franh hoan hao, khdng cd sy chi phoi cila EVN, khong cd sy Iam gia cua cac nha miy dien cd cdng suit ldn (cd nang chi phoi ddn an ninh he thdng), tdng ngudn didn cua he thdng la du thda ma cac nha may didn canh tranh phat didn mgt each cdng b5ng dua vao gii didn fren ^ i trudng didn Lgi nhuin phit didn chinh bing s6 du cda gia ban trd cho chi phi phit dien, d^ Igi nhuan toi da thi chi phi phit dien phai tdi thidu, quan he dugc the hidn qua bidu thdc sau: Lgi nhuan ^ Gia ban x Lirgng didn nang dugc ban - chi phi phat didn Trong dd tai, gii ban la gii thi trudng hoac gii udc lugng Ch( oHi p h ^ t «3i6n Hinh 1: Xac dinh lpi nhu^n vk chi phi vdi ring buoc chi phi nhido lieu Tgp chi Khoa hgc Tnrung Dgi hgc Cdn Tho Phdn A: Khoa hge Tu nhiin Cong nghi vd Moi yuong: 26 (2013): 44-52 Hinh 2: Phoi hffp c5c to may phat di|n tren cff sd gia dien tbi trirdng 2.1 Tinh toan Igi nhuan thi trirdng Didu kidn rang budc phat didn cua td dien canh tranh may thu i Cho mgt he thdng didn vdi n td miy phat dien va khung gia dien thi trudng xic dinh nao dd cho trudc, bai toan ydu ciu ta di xac dinh cac thdi gian khdi ddng may, thdi gian tit may va dung lugng cdng suit phit cda tit ca cac to may tai mdi nic thdi gian t ma ta khao sat tai mgt khoang thdi gian ma ta lap ke hoach hoat dgng cho cic td may n Vi vay, lgi nhuan tdng cdng cua tit ca cac may phit phii dat cue dai, dua vao ddi tugng la cac rang huge cua td may 2.2 Giai quyet bai toan Td ham chi phi phat dien cua td miy thu i la: C,(P^')-a,(P;)-+b,(PiO + c^ rp^„(i)