DESIGN OF DATA ACQUISITION SYSTEM FOR MEASUREMENT OF POWER AND ENERGY USED IN CHARGING CAPACITOR BANKS.

Transcription

1 NCCI 00 -No Cof o Copuo Iuo CSIO Chdgh, INDIA, 9-0 Mh 00 DESIGN OF DATA ACQUISITION SYSTEM FOR MEASUREMENT OF POWER AND ENERGY USED IN CHARGING CAPACITOR BANKS M Pbh Mko U Shoo of Eo, Dv Ahy Uvy, Ido MP pbhko004@yhooo Ab: I pud pow ppo, h gy f od g po bk h hgd ug dff yp of pow upp Th hgg po ood by u g dv No dd y of u do Ahough pob o w y quo bu h ouo oo ubo w hv yzd h bhvo of h u hough ofw bd D Aquo Sy ug Lb VIEW o vu h pfo p of h pow uppy Kywod: Pow Supp d h pfo p, Lb VIEW 70 INTRODUCTION I pud pow ppo k od- pud, h gy f od g po bk h hgd ug dff yp of pow upp k ug u g pd h py, o u d vog doub Th g pd h b v, pv, duv o obo of o h o yp Th op of ovo of AC wvfo o DC ug vou yp of f u d y of uh u pd d xbook o pow o Howv, uh u odfd wh h po f k h fo of gy og dv, h of od- H, h po bk hgd ug h AC o DC ou fo qud fo g dd po of h, d dhgd fh p fo hvg h g o Th hgg po ood by of u g dv h py o ody u A o of uh u o foud w-kow book o od- A dd y of DC d AC hgg hqu gv, bu y ov whh vov hf d fu y hgg No dd y of u ud fo hgg po bk ov v y pubhd u o h o pow o Vou hgg hod vb fo hgg po bk I vy uh y o u pfo p k hgg d ffy of uh u Ahough pob o w y quo fo uh u bu h ouo oo ubo du o h p of fyg dod, whh oo h do d fow of u dpdg o h b To kow vou p k hgg, pk u d ffy of uh h fo h dg d o of opo, y o qu h d k ou hgg u d vog ov hgg duo I h poj p d o gv uddg of h bhvo of b po hgg u by dvopg ofw bd D Aquo Sy o vu h pfo Fo h pupo PC bd No Iu D Aquo d og 6 og h d ADC ud Aog h fd o h pow uppy A pog dvopd ug NI- DAQ 70 vo Lb VIEW ofw og wh No Iu d quo d o qu h d ov pfd d h qud d u o u vou p W hv ud No Iu Aquo d 0E wh Lb VIEW (70 vo) fo quo of d W vg d o Moof x wokh d gph dw o udy d op h pfo p wh h ho vu H w hv k 40µF po bk d w hgg by pow uppy who hgg po ood by g h py u hough g pd Th g pd h b v, pv, duv o obo of o h o yp PERFORMANCE CRITERIA Th dd fo vug pfo of DC pow upp, uh guo, pp, d uy W hv ud foowg p fo ug h pfo: Chgg : Th h k o hg h po bk o fxd vu (90% ho by) of h xu vog Th y o u qud po of fg h Effy: Th h o of E d Ep, wh E h gy od po bk d Ep gy uppd by h ou 3 Pk u: Th h pk vu of ou u, whh w dd h pfo of dod 7

2 NCCI 00 -No Cof o Copuo Iuo CSIO Chdgh, INDIA, 9-0 Mh 00 I u b od h h of h poj o u h pfo p og wh pow oud by h pow uppy d gy od h po bk ug qud d hough PC bd No Iu d quo d Th Lb VIEW ofw po vy f d p h qud d og wh h p p d u-fdy wy I LbVIEW fo p d o how h pu vog, pu u, po pk vog, hgg, pk u vu d ov ffy of h pow uppy W hv dgd pow uppy o hg 40µF po bk Th pow uppy dgd fo g ov dff g pd fo dff pod 3 CAPACITORS IN DISCHARGE CIRCUITS Th po h o po vo fo gy, whh w ubquy b dhgd hgh o h ou u o podu quk fow of gy Th wgh d o of h pow upp y du o h po Cpo o of p, o fo, wh ug d d bw h Pp ud wh o ooy ud d, wh oh po u h y of p Wh vog ppd o h po p, hg fow o h p, d h d ubjd o o fd E gy qud o hg h po o gv vog odg o h po ohp Egy od po= CV jou wh V h vog o vo, d C h p fd Th p C ub dg h by of po o o hg p vo of ppd vog A po wh g p w o o gy h o wh p h vog I pud pow ppo k L, h gh oupu fo fh p fuo of h gy fo h po d, hfo, b popoo o h p By obg ub po gv vog, h ou of gh fo fh p b pdd wh h ffy kow 4 DESIGN OF SYSTEM IN LABVIEW Cuo of pfo p bo vy ubo wh uo do hy Thy b ovd vy y ug u hod d wh h u of dg opu To h ff pdd by ho uo w hv up pooyp pow uppy wh dgo y h PC bd NI- DAQ d d LbVIEW To u pfo p fo p u, w d ou vog d u Chgg, Effy d Pk u hu b ud To o d d fo fuh uo w ug LbVIEW ofw A fo p d LbVIEW how d dbd Fg Fg : Fo p LbVIEW howg oo d ud p Dgg d quo y fo u of pow d gy ud fo hgg po bk o ofw p d hdw p, d PC bd d quo d og 8\6 og h o b ud NI-DAQ 70 PCI o bd No Iu d quo d wh LbVw ppo ofw of 70 vo You qu d by fg h NI-DAQ d o h wh you w o qu d d LbVw v d po h qud d Th d quo y xy ggd whh by hgg d op wh hgg ov So oo you wh o h ou o h DAQ d w qug d d h hgg g ov op qug Ad wh od h fo p w dpy h ud p wh gph Th fo p y o Ipu oo d ud oupu p d bow:- Ipu Coo : - () Aquo (), () Spg Oupu Dpyd : - () V xu vu of pu vog () V x xu oupu vog o po bk (3) Ep Egy uppd (4) E Egy od po bk () Gph howg ou pu vog, 8

3 NCCI 00 -No Cof o Copuo Iuo CSIO Chdgh, INDIA, 9-0 Mh 00 u & pow (VA) (6) Gph howg V x w Aquo (7) Chgg : T k o hg h po bk o 90% of xu vog (8) Effy: h o of E d Ep (9) Pk Cu: pk vu of ou u Th fo p d o dpy h qud d d gph how Fg d Fg 3 pvy Fg : Fo p, whh how b o dpy h qud d Th h b LbVIEW fo p whh ppd o dpy h ou qud d I h fo foo of h p k d dpyd H you g ou foo by og h up d dow b You k up o 00k p p od, h h xu pg povdd by LbVIEW Now w w du h gph how Fg 3 Th po bk vog dpyd h gph wh p o Th xu vu of po bk vog up o 000 vo oy, f h vu of h od vog of h po bk xd h vu h pow uppy uoy do fo h So Y-x xu vu f o 00 vo Fg 3: Gph Fo p o dpy po oupu vog dg H Y-x howg vog o po bk d X-x howg Fo h gph o y o h k o h pu po vog vu Chgg b fo h gph 900 vo o 90% of h xu po bk vog I Fg 4 h gph how d o dpy pu vog d pu u wvfo, wh p o ub of p, fd o h pow uppy I h gph you y vw h ou vu of h pu wvfo W o vw ph hf bw u d vog I h fo p you h pg d quo pod how Fg Fg 4: Gph fo p o dpy ou pu vog d pu u Th ou udd h fo p b d bow Th h od gv h LbVIEW fo p b Thy ud h foowg: Spg ub, Iou, 3 Spg, 4 Aquo pod, Iou pu vog, 9

4 NCCI 00 -No Cof o Copuo Iuo CSIO Chdgh, INDIA, 9-0 Mh 00 6 Iou pu u, 7 Iou VA, 8 Iou gy jou, 9 Iou po bk vog EXPERIMENTAL SETUP A pow uppy dgd o h LbVIEW dg Dff dg k by hgg h py u g pd fo dff quo pod Th pow uppy dgd fo g how Fg Th uppy ud o hg 40-µF po bk, d h A d B fo h g pd 0O Fg : Pow Suppy dg ud fo g Fg how h pow uppy u, Fg 6 how h u fo oo of CHARGE d DUMP wh d h Fg 7 how h u whh uppy vog ou o h opo d o h u fo CHARGE d DUMP Th opo ud fo oog h SSR (od y) of h uppy A h u xpd ow d + V CHARGE RLA 40µF Fg 7: V d go u I Fg h L d u N f gv o f (RFI) d h hough o wh fd o h py u g u v SSR d vog dvd u Th o wh op uy d ud ju o hv u oo ov h uppy Wh h hg buo wh pd h Ry A o gzd by +V vo [+V h oupu of h u how Fg 7] A oo h Ry A (RLA) o g gzd o h N/O wh of RLA Fg Now Fg, wh h N/O RLA wh od o h oo o wh h L of uppy d h oo o g gzd Th d o hg do gow bu p oo wh oo o, whh how h h hgg po gog o Th gzd oo o o h N/O () wh Th o h p of h uppy wh h L d Nu of h MAIN uppy Th L L fd o vog dvd u hough SSR Th vog dvd u dbd h: M A µf L u B µf P Vp o NI-DAQ h S 0K 0 Ip o NI-DAQ h Fg 6: Coo u fo hgg h pow uppy Fg 8: Vog dvd u A d h NI-DAQ d h qu vog up o 0 V hfo h dvd 0

5 NCCI 00 -No Cof o Copuo Iuo CSIO Chdgh, INDIA, 9-0 Mh 00 u ud Th py vog ud o h 0 kω o d fo py u u h vog o h 0 Ω o ud d h dvdd by h vu of h (0Ω) o g h u W hv ud h fou I = V/R fo ug h pu u Th po Vp fd o h p 3 (ACHO) of NI- DAQ 60Ed, whh h h 0 LbVIEW dg Th h w qu oy h vog o 0 kω o d fo dpyg h vog f upd wh h dvdg o 33 d h dpyd h bok dg how fg 7 d od x f Sy h po Ip od wh h P (ACH) of h NI-DAQ 60E quo d, whh h h LbVIEW dg F h vog qud, dvdd by 0 d h dpyd LbVIEW how fg 7 d h od x f fo fuu uo Ag w o o h uppy u,[fg ], h A d B fo h u g pd Rdg k by hgg h op h N/C RLB wh h Fg 6 d wo N/O () wh Fg h op h hgg po d h hgd po bk dup hough h k-00w o, h N/C () wh o wh dod 6 RESULTS Tg do ov h pow uppy by kg vou vu of h g pd d gph pod bw h oupu vog of po bk wh p o H, w hv how dff gph d dg k LbVIEW fo dff vu of g pd 6 C I: kω o g pd A h ud p fo Ω k py u how bow A h dg pud fo LbVIEW dg Cud p μf g po Effy 77 % T 9 Pk pu u 499 A Th g b v, duv, pv o obo of o h o yp Now, p-up fo ud whh p up h py vog o 70 V h bdg f u ud o ov h AC wvfo o DC Th DC fd o 40 µf Cpo bk (h p obo of fou 0µF po) Th 40 µf po bk od p wh N/C () wh how h Fg Noy h N/C ( wh ) op o dod wh hgg po gog o bu whv h o h N/C wh op uoy A oo h po vog xd 000V, h opo d h g o SSR whh do h uppy Th povd fy o h pow uppy Th opo fd wh v d uppy whh gd by h u how Fg 7 Dug h hgg po h d o hg buo gow ououy To dhg h po bk, h dup wh Fg 6 pd d h RLB DUMP o g gzd (g o wh gow), whh Fg 0: Ex Ch howg V w fo kω Lg Ipd Th h x h dw bw h po bk vog d Th LbVIEW o podu gph wh h d how fg bu h LbVIEW gph b podud vy f opo wh h x h

6 NCCI 00 -No Cof o Copuo Iuo CSIO Chdgh, INDIA, 9-0 Mh 00 Fg : Gph howg Cpo bk vog w LbVIEW fo kω Lg Ipd 6 C II; wo: μf po g pd I C w hv k μf po g pd A h ud p d gph how bow fg Fg : Cud p Lb VIEW fo μf po Lg Ipd Fg 3: Ex Ch howg V w fo μf g po C u p k Ω g μ F g p o E f f y 6 0 % 7 7 % T P k p u u A A V fo μf po g pd T() V Cpo Vog(vo)

7 NCCI 00 -No Cof o Copuo Iuo CSIO Chdgh, INDIA, 9-0 Mh 00 6 CONCLUTION Tg do ov h pow uppy kg u g of kω d p of μf D od hough h NI-DAQ d fo h g pd py x fo Th od d o p ub, p od, pg R, quo pod, ou pu vog, ou pu u, VA ou g, ou gy (Jou) od po bk d ou oupu vog of h po bk W hv ud h pfo p y ffy, pk u d hgg of h pow uppy I u b od h h h k o hg h po bk o fxd vu (90% ho by) of h xu vog Th y o u qud po of fg h od o Gph pod bw po vog d fo dff g pd d w foud h h dg h wh h ho vu gv by uo wh g pd Th ud p ov wo dff g pd gv bow: TABLE 3 Cu p kω g μf g po Effy 60 % 77 % T 88 9 Pk pu u 683A 499 A y op dff pow upp d hoo h o odg o you qu Th y gv u bhvo of y pow uppy d v d bo 7 FURTHER IMPROVEMENT Fuh pov of h y o b do by gvg ho y of h g qud hough h NI-DAQ d h You do y of y u dg LbVIEW D quo vy uh y y of y y Fo h d quo y bd o LbVIEW d No Iu quo d 60E vy good oo Fo ppo wh g ou of d o b hdd d uo ov d qud h o LbVIEW d No Iu quo d 60E vy good oo 8 REFERENCES [] C P Nvh d S Ng, Nu vuo of dff hod of hgg of po bk fo pud pow ppo [] ME V Vkbug, Nwok Ay, Edo 3, Wy Ld, 99 [3] Gy W Joho, LbVIEW Gph Pogg, M Gw-H, I 994 [4] SABoo, E Cu Ay, P H, I 987 [] BL Thj, E Thoogy, vo, Edo 7, S Chd d Copy Ld 978 [6] D A Chkb, Cu Thoy (Ay d Syh), Edo 3, Dhp R d Co (Pv) LTD004 Th how h h ffy d pk u o ug po g pd opd o v g pd d h hgg of pv g pd H h ouo dw h h pv g pd o ff h h v g pd Th p vud by uo of hgh vu h y b du o gg o p of p u Th how h h D Aquo Sy, whh dvopd ug Lb VIEW, f d y hod of y of dff pow upp Th y b ud wh gy f od d h dhgd k upp fo dff yp of, gy f od po bk h dhgd hough fh p o g g o Th y b ud o po bhvo of y pow uppy d o u ou pow d gy uppd by h uppy Now you 3