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Joumal of Science and Technology N 170(8 2015) Military University of Science and Technology TOI iru HOA VAN HANH OA MUC Tl£U HE THONG DIEN NHO TAI CAC VUNG BI^T LAP Nguyin HOu Buc Bai bao trinh bSy b[.]
Joumal of Science and Technology.-N 170(8-2015) - Military University ofScience and Technology TOI iru HOA VAN HANH OA MUC Tl£U HE THONG DIEN NHO TAI CAC VUNG BI^T LAP Nguyin HOu Buc Bai bao trinh bSy bai toin t6i iiu da muc ti&i d6i vdi he thong di?n lai gom nang lucmg gio, mat troi, may phat diesel vi h? thong tich tiu nang luong duoi dang ac quy cung cap di§n cho c4c dio cung nhu cic vimg khong c6 kgt noi v6i luoi di?n chfah Ket qui bai bao chi each nang cao ch5t lugng van hinh 5c quy, nang cao dp tin cay cung cap di?n, giam chi phi vi nhiem moi trucmg Tit Idioa: He thong Sc quy Uii thdi he Ihong phdt dien lai, ludi dien biet lap toi wu Gidd thieu Su tang ttudng m^mh me cua cac ngudn nang lugng tai tao chi ring nang lu(>ng tai t ^ se la mgt phin quan ttgng ciia rat nhieu h? thdng dien ttong tuang lai khdng xa, Tuy nhien, ti ttong cdc nguon nang lugng tai tao cang cao thi ciing dat cac bai t o ^ khd khan cho cac nha van hanh tinh khdng on dinh cd huu ciia chung Tai cac hki dao ciing nhu cdc vung khd khan cho viec lay di^n tur h^ thdng di^n chinh thi vi^c sir dtmg hgp ly cac ngudn nang lugng l^i cdng ddng mdt vai ttd quan ttgng lam giam sir phv thugc vao cac nhien lieu hda thach, thudng la dau diesel [1-3] Su phat tiiln cua cic ngudn nang lugng mdi da md co hdi cho vi?c ting d\mg cdc hd thing tich tru nang lugng, djic biet Id he thing tich trii nang lugng dang dc quy Uu dilm cua vi?c kit hcrp h$ thing Sc quy vdi cac ngudn nang lugng mdi dugc trinh bay ttong [4-10] Cdc tai liju [6, 7] chi la ring cd thi su dung he thong ac quy dl phan phdi dien tit cac ngudn nang lugng mdi va gidm cac hi?u iing tieu cyc ddi vdi chit lugng dien nang tinh gian doan cua cdc ngudn nang lugng mdi gay Bai bao trinh bay mdt chiln luge vjn hdnh tdi um cho he thing difn lai gdm cac ngudn nang lugng gid, mat trdi, mdy phdt diesel kit hgp vdi he thdng dc quy cd xet toi cdc rang budc vl d nhiem tji cdc khu viic biet lap He thdng dc quy dugc van hanh dl dap ling da nhi$m vy gom tdi thilu hda chi phi van hanh mdy phat diesel bdng viec sii dting toi da cdc ngudn nang lugng mdi, dam bao can bing cdng suit, dilu khiln tin sl, dien ap, Cdng suat nang lugng ciia h$ thing ic quy se gdm phin dy tm ndng lugng duong va am de h?n che dac tinh biln dgng theo thdi tilt cua cac ngudn nang lugng mdi cung nhu \ fui dam bao viec sii dyng may phdt diesel la toi thilu, Phuang phap dugc tiln hanhttenpMn mem Matlab, cac kit qud md phdng cho thiy hieu qud ciia phuong phdp dl xuit ' Dili hoc Di?n luc 18 Tgp chi Khoa hoc vd Ky thugt.-SS 170(8-2015) - HQC viin KTQS Thu^t ngir T - thdi gian tien hdnh tdi im (gid) F('Pdg(0) - hdm chi phi nhien U|u cua mdy phdt diesel Co, Cl, C2 - cdc h$ so chi phi nhien li?u /'dg(0 - cdng suat phdt ciia may phdt diesel Pvt (t) - cdng suat phdt cua h$ thong bien ddi nang lucmg gid •Ppv(0 - cdng suit phdt cua he th6ng nang lugmg mat trdi Pb(t) - cong sudt trao ddi gjua h$ thdng dc quy vd cdi AC P](t) - cdng suat nhu cdu cua phy tdi ^Renew(0 " cdng sudt phdt cua cdc ngudn nang lugng mdi ^bmin - cdng sudt gidi han dudi cua cdng suat he thong ac quy Pbmax - cdng sudt gidi ban trSn cua cdng suat he thdng ac quy ^dgmin - cdng sudt gidi ban dudi cua cdng suat may phat diesel -Pdgmax - cdng sudt gidi ban tren cua cdng sudt mdy phdt diesel ^min-dg - cdng suat gidi ban dudi cua mdy phdt diesel cd xem xet trao ddi cdng suat acquy ^max-dg - cdng suat gidi han tren cua may phat diesel cd xem xet trao ddi cdng suat acquy DOD - dp sau cua vi$c phdng cua h$ thong dc quy Eb - cdng sudt tich trtr cua h? thdng dc quy £"60 - trang thdi nap ciia ac quy tai thdi diem ban ddu ciia qua trinh tdi uu hda Pb-ia{l) - cdng suit cua h$ thdng dc quy Tjdis - hidu suat phdng ciia dc quy ;;ch - hieu suat nap ciia dc quy ERCS - t^ng lu^ng dy trft h6 thdng ac quy AfRcncw - dp khdng chac chdn cua cdng suat phdt tii cac nguon nang lugng mdi tinh theo gid APw - ^9 khdng chdc chdn ciia cdng sudt phdt tix ngudn nang lugng gid APpv - dp khdng chac chan cua cdng suat phat tii ngudn ndng lugng mat trdi Afi - khdng chdc chdn cua nhu cau tieu thy phu tdi 19 Joumal «fl^ , dTechnolo^.-N.170(8-2015)-UililarvUniversilyofScienceandred«S^ ATg,, - thai gian yen ciu md lugng du ttu phai dam bdo sin sang Boc- lgi ich t i viec tilt ki$m nhien li?u BR™W - lgi ich cd dugc tu vi?c gidm d nhilm mdi ttudng BEM - lgi >ch thu dugc tu vi$c tan dyng cdc ngudn nang lugng mdi JpQ - lgi ich thu dugc tii vi?c nang cao chit lugng didn nang M6 ta he thong diSn lai Hinh Saddh? thdng dien lai He thing dien lai bao gdm cac ngudn nang lugng gid, mat ttdi va cdc mdy phai diesel H$ thing ic quy dugc tich hgp vao he thong dien nhim han chl dac tinh phj thudc thdi tilt cua cdc ngudn nang lugng mdi, ddng thdi giam vi?c tidu thy diesel, qua dd giam d nhilm mdi trudng, tdi thieu hda chi phi van hdnh Ngoai ra, he thing dc quy cdn cd thi dugc iing dyng cac iihi?m vy khde nhu diln khiln di$n ap, cung cap nang lugng du tru, san bang phy tdi Hinh md td h$ thdng di?n lai vd cac d6ng cdng suat tuang ling cung cip di|n cho phy tdi d khu vyc bi$t lap vdi ludi di$n chinh Gid thiet rang cac ngudn nang lugng gid, mat ttdi, h | thing ic quy, may phat diesel, tai dugc ndi vdi cdi dien xoay chilu Mdy phdt dien gid dugc nli trye tiep vdi cdi AC He thdng pin mat ttdi dugc ndi vdi cdi AC qua mdt bd bien doi mdt chieu xoay chieu (DC/AC) Mdy phat diesel dugc ndi trye tilp vdi cai AC He thong ac quy Vanadium Redox (VRB) dugc su dung va dugc ndi qua mOt b9 biln ddi mot chilu xoay chilu trudc ndi vdi cai AC He thong ac quy VRB dugc sii dyng bdi vi cdng suit va nang lugng cua dc quy cd the dugc chgn mot each ddc ldp vdi nhau, dd ta cd thi chgn dung lugng cho he thong dc quy mgt cdch tdi uu Chiln luge vjn hanh cho he thing dien lai la sii dyng tti?t dl cac ngnSn 20 Tgp chi Khoa hgc vd Ky thudt -So 170(8-2015)-Hpc vien KTQS ndng lugng sach va vdy gidm chi phi van hdnh ciing nhu thai mdi tnrdng bang viec ling dyng h? thong tich trir nang lugng dudi dang ac quy Chien lirgrc v^n hanh hf thong difn lai A Phumtgphdp ThuEit todn tdi uu ndy dugc thdnh lap vd thye hien phan mSm Matlab Bdi todn la tdi uu phi tuyen cd rdng budc va sir dyng phuorng phdp lap trinh binh phuong lien tyc De xay dung bdi toan, mpt sd gid thiet sau dugc su dyng: - Cdng suat cua cdc nguon nang lugng gid va m^t trdi dugc dy dodn theo tiing gid Id san cd Dp sai sd ciia dy doan dugc cung c ^ dudi dang ti le phdn tram ciia cong sudt lip ddt - Dudng cong phdt dien cua may phdt diesel va cdng suit tieu thy dy doan ciia phy tai cung san cd - Cac dac tinh ky thudt ciia he thdng ac quy nhu cdng sudt, ndng lugng, miic phdng, hidu suit phdng, s^ dugc cung cdp - Cac ket qud ciia qua trinh toi uu hda Id bieu dd cdng suat phat theo gid ctia he thdng ac quy, bieu trang thdi s?ic ciia dc quy, bieu dd phdt dien theo gid cua may phat diesel, chi phi vdn hdnh toi uu hda ciia h$ th6ng d i ^ lai, hxgng thdi CO2, NOxB Bdi todn Myc tieu ciia bdi todn Id ddm bdo dp tm cay cung cap di^n vd sii dung tdi da cac ngudn nang lugng mdi, vdy se ddn tdi chi phi van hdnh va hrgng thdi la tdi thidu Do vdy, ham myc tieu ciia bdi todn Id ^ i thieu hda chi phi van hdnh vd dugc md ta nhu sau: min(i;F(P^(())) (1) (=1 Hdm chi phi nhien lieu dugc xdc dinh theo cdng thiic sau: '''-^^'^%p ^mm~p^it))rj^ /i