2003-2004 > Academic research: refereed > Publication in refereed journalVersion of RecordPublishe

Ai, B

Liao, X

Shen, H

Yang, HX

2003-2004 > Academic research: refereed > Publication in refereed journalVersion of RecordPublishedVoR allowe

PolyU Institutional Repository

　　????:2002-11-29　　????:?????????? (96-A17-08-01);????? 1998??????????? “????”????????:0254-0096 (2003)05-0718-06????????????? Ⅱ??????艾　斌1 , 3 , 杨洪兴2 , 沈　辉1 , 廖显伯3(1.????????????, ?? 510070;2.?????? , ????;3.??????????? , ?? 100083)?　?:??????????????? CAD?????????????? , ??????????????????????????????????。?????????? 1989 ????????????? 、 ???????????????????????????????????????????? LPSP???? 0.1 ?0.01 ?????????。?????????????????????? 、 ?? 、 ??????????。???:????????;????;CAD???????:TK614　　　　?????:A0　?　???????????? , ?????????????????????????????????? , ??????????????????????????? 、 ?????[ 1 , 2] 。?????????????????????????????????????? , ??????????????????????????? 。????????????????????? , ?????????????????????????。????????????????????????????????? 。????????????????????????????????????? , ?????????????????????????????? , ??????????????????????????????。????????????????????????????? , ????????????????????????? 。?????????????????????? 、 ???? 、??????? 、 ??(??????? 、 PV ??????)????????????????????????????? , ?????????????????????????? 。????????????? CAD?????????????????。?????????????????????????????????????????? 。??????????????????? 、 ?????????? 、? CAD?????????????????????????????????? 1989????????????? 、???????? , ?????????? PV???????????????????? LPSP。??????????????????(?????????? LPSP?? 0.1? 0.01)???????????????? PV??????????????? 。???????? PV?????????????????? , ??????????????????????????????? 。???????????????????? LPSP ?????0.1? 0.01????????????? 、 ?? 、?????????? 。1　???????1.1　????????? 24 ?　? 5 ?2003? 10? 　　　　　　　　　　　　　?　?　?　?　?ACTA ENERGIAE SOLARIS S INICA　　　　　　　　　　　　　Vol.24 , No.5Oct., 2003??????? 22.3°, ?? 114.17°, ???????(??????????:?? 120°),????????????? 。?????????????? , ??????????? , ?????????????????????????。?????????????????? , ????????? 26m(????? 82m)? Tele-dyne Geotech WS-21?????? , ?????????????????????????[ 3] 。???????????????? , ???????????????????????????????????????????。1.2　????????????????????????????????????????。???????????? , ??????? 300W , ??????? , ??????? , ???????。??????????????:①???????(??????????)??? 24V;②PV ????????? , ????????? 22.3°。 ③??????????? Fo rtis Espada 800W ???????????? PV?????????。? 1???????????????????? 。???????????????????????????? , ? 1?????????????????????????????????????????。????????????????[ 1] , ?????????? , ???????? Fortis Espada 800W????????????(3m/s ～ 25m/ s)。?? 1?? , ????????????????? , ???????????????????? 。? 1989??????????????? , ????????????????????? , ???????????????????????????????????。???????? , ?????????????????????? , ?????????????。?? , ????? , ?????? PV ?? , ???????????????????????? 。???????? , ??????????????????:???? 、 ?????????? 1　?????????Table 1　Technical parameters of chosen components???? ???? ???PV ?? ?????? Siemens SolarM35 ????????W 35.0??????? V 17.0??????? A 2.12???? V 22.0???? A 2.3?????? V/ ℃ -0.1152?????? A/ ℃ 0.000224PV ?????$ 1400.0????? ?????? Fortis Espada????W 80012m/ s??????W 600???? m/ s 3.0???? m/ s 25.0???? m 12??? 2????????$ 12000.0??? ?????? TOYO GFM-100???? V 2???? Ah 100???????? 0.0001??????$ 580.0? 1　??????????????????????????????????????Fig.1　Monthly variation o f effective wind powerdensity at the hub height and radiation on thehorizontal surface and the array plane7195 ?　　　　　　　　　　　?　??:?????????????Ⅱ.??????　　　　　　　　　　　　 　??????????????????? 。?????????? , ???????????????? , ????????????????。?2?????????????? 、 ????? ,????????????。???????? 、????? , ?????????????????。? 2　??????????Table 2　The time for lights turning on and off in each month?? 1 2 3 4 5 6 7 8 9 10 11 12???? 6:00 6:00 5:00 5:00 5:00 4:00 5:00 5:00 5:00 5:00 5:00 6:00???? 18:00 18:00 18:00 18:00 19:00 19:00 19:00 19:00 18:00 18:00 17:00 17:00　　??????? Fortis Espada 800W ???????????????????:Pw(v)=0　　　　　　　　　　　　(v <3.0)0.007·(v-6.0)2 +0.06·(v-6.0)+0.13 (3.0 ≤ v <8.5)-0.005 ·(v-14.0)2 +0.04·(v-14.0)+0.68 (8.5 ≤ v <20.0)0.0008·(v-22.4)2-0.02·(v-22.4)+0.68 (20.0 ≤ v ≤25.0)0　　　　　　　　　　　　(v >25.0)(1)? 2???????????????????????(1)???????。?? 2 ???? , ???????????????? , ????????????????? 0.8kW??????? 。??????? 0.745kW ????? 17.0m/ s???? 。????? 5.0m/s? , ????????0.068kW;????????????????? ? ? ? ?:0.2kW (7.0m/ s), 0.464kW(10.0m/ s), 0.714kW (15.0m/ s), 0.745kW(17.0 , 18.0 , 19.0m/ s), 0.736kW(20.0m/ s),0.677kW(23.0m/ s)? 0.636kW(25.0m/ s)。???? , ??????????? FD2.5 —300????????????????? 0.3kW , ??????? 12.0m/ s? , ?????? 0.46kW ,?????????????????????:0.06kW(3.0m/ s), 0.11kW(5.0m/ s), 0.245kW(8.0m/ s), 0.4kW(10.0m/ s), 0.47kW(13.0m/s), 0.46kW (14.0m/ s), 0.45kW (15.0m/s),0.38kW(17.0m/ s), 0.27kW(20.0m/ s)。?????? ?? , ? 10.0m/ s ??? ???? ,FD2.5 —300???????????????Fortis Espada 800W ??????????。?????????? , ???? 10m ????????? 10.0m/ s?? , ?????????????????????????。???????????????????????????????????? , ???????????????(??)????? , ??????? , ?????????????。? 2　Fo rtis Espada 800W???????????????????Fig.2　The output characteristic and its fittingcurves of the Fortis Espada 800W w ind generator????????????? PV???????????:N PVS =2 , Nbs =12 。?????????????????:???????? 、????????????? 0.99 , 0.99 ?0.92;?????????? 0.85;??????????????? F c ? F 0 ??? 0.98 ?1.0。???????????????? E Lpd=3298.356Wh ????????? ????720　　　　　　　　　　　　　　　　　　　?　　?　　?　　?　　?　　　　　　　　　　　　　　　　　24 ?　7170.34Wh , ??????????????。????????(13)??(12)?????????????? PV???????????:N bp ,min=3 , NPVP , min=7。????? Nbp? 3?? 45?NPVP? 3?? 70??????????? LPSP?。? 3 ????????????????- C sb·NbsC spv·NPVS =-580×121400×2=-8735???????? 。?????????????????(? LPSP??? 0.01? 0.1)????????????:Nbp=5 , NPVP =17(??? LPSP=0.01?????????? , ?????????? 1)? Nbp=3 , N PVP=7(??? LPSP=0.1 , ???????2)。???????????????????????。? 3　?????????? LPSP ???????? PV ??????????????Fig.3　T rade off curves between the parallelconnection numbers of battery and PV modulestrings for the different LPSP values2　??????????? 4??????????????????????? SOC ??? 。???? 1 , ???????????????????? 4 ??(?2161? 2880h??);????? 2 , ?????SOC????????????? , ???????????????????? 4?? , 8??(? 5089 ? 5832h ??)? 12 ??(? 8017 ?8760h??)。? 5 ??????????????????????。?? 5???? , ?????????? 12??? 3900Wh , ???????? 6??? 2700Wh;?? , ??????????????????? , ?????????????? PV????????? , ???????????????????????? 。????????????? PV????? 1???????????? 2??? 。? 4　??????????????????????? SOC ???Fig.4　Hourly variation o f the SOC of batterybank for the two kinds of optimum configurations1— ??????;2—PV ?????;3—???????????;4—?????? 5　????????????????????Fig.5　Daily energy production and consumptionsituations for the two kinds of optimum configurations? 3 ????????????????? ,???????????? E surp , ??????? LPS , ???? T f , ??? LLP ???????? LPSP ?。???? 1 , ? 4 ?? 5 ??????????。??? 4???????????7215 ?　　　　　　　　　　　?　??:?????????????Ⅱ.??????　　　　　　　　　　　　 　????(?? 1??), ?????????????????????。???? 2 , ?????PV??????? , ???????????????????????(?? 5??)。?????????????????。?? 4 ???? ,????????????? 8??? 12?? ,????? 8?????????? 12???????????? 。?? 6?????????? , 10????????? , ???????????????? 。???? 1 , ????? PV?????????????????????? , ?? 4???? , ????????????? 。????????????????????? , ?????????????????????????????????????。?????? , ????????????????????????? , ????????????????????????。?? , ??????????????????? 、??????????????????????。? 3　????????????? Esurp , ??????? LPS, ???? T f , ??? LLP ???????? LPSPTable 3　Monthly energy profit and loss , power failure time(T f), LLP and LPSP o f tw o configurations?? 1 ?? 2?? E surp/ kWh LPS/kWh T f/ h LLP LPSP Esurp/ kWh LPS/ kWh T f/ h LLP LPSP1 102.33 - - - - 68.00 5.20 30 0.0403 0.04652 109.74 0.52 2 0.0030 0.0052 54.35 8.80 43 0.0640 0.08733 127.22 - - - - 67.06 4.01 21 0.0282 0.03924 34.21 9.75 40 0.0556 0.0985 21.72 27.01 106 0.1472 0.27285 99.67 0.26 4 0.0054 0.0028 67.45 13.61 59 0.0793 0.14636 114.41 - - - - 56.38 0.31 2 0.0028 0.00387 117.22 - - - - 53.10 6.04 26 0.0350 0.06498 48.68 0.44 2 0.0027 0.0047 12.92 24.35 103 0.1384 0.26189 94.07 - - - - 46.20 15.26 63 0.0875 0.154110 251.74 - - - - 185.24 2.26 11 0.0148 0.022111 171.61 - - - - 103.80 1.37 6 0.0083 0.012712 100.74 1.42 5 0.0067 0.0117 66.82 18.06 71 0.0954 0.1493　　? 4????????????????? 。?????????????????? , ??????????????????? , ??????????????????? , ???????? , ????????? 。????????????? PV?????? , ???? 1 , ???????????????????????????????? , ??????????????????? 。???? 1 , PV ?? 、 ??????????????? 47600.0+12000.0+34800.0=94400.0? , ??????? 53.0h , ?????? 12.39kWh , ???? 41.3h ???????;???? 2 , PV ?? 、 ??????????????? 19600.0 +12000.0 +20880.0 =52480.0? , ??????? 541.0h , ?????? 126.26kWh , ???? 420.8h ???????。? 4　???????????Table 4　The w hole year' s performancesof the tw o configurations?? 1 ?? 2?????/ kWh 1187.408 1187.408????????/ kWh 1593.503 1593.503PV ?????/ kWh 1247.750 513.779???????????/ kWh 2800.488 2081.124?????????/kWh 1371.641 803.032???????/ kWh 12.39147 126.258LLP 0.00605023 0.06175799LPSP 0.01029277 0.1048742722　　　　　　　　　　　　　　　　　　　?　　?　　?　　?　　?　　　　　　　　　　　　　　　　　24 ?　3　?　?????????????????? CAD??????????????。?????????????????????????????。?????????? 、 ?????????? 、 ????????????? 、????????????????????????? , ?????????????????????????????????? LPSP ???? 0.1? 0.01????????。?????????????????????? 、?? 、 ?????????????。[????][ 1] 　?　?.??????????????????????[ D] .????:????????????? , 2000.[ 2] 　Borow y B S , Salameh Z M.Methodology for optimallysizing the combination of a battery bank and PV array ina w ind/ PV hybrid system [ J] .IEEE Transactions onEnergy Conversion , 1996 , 11(2):367—375.[ 3] 　Lu Lin , Yang Hongxing.Wind data analy sis and a casestudy of wind power generation in Hong Kong [ J] .Wind Engineering , 2001 , 25(2):115—123.OPTIMALLY DESIGN OF PV/WIND HYBRID SYSTEMⅡ.A CASE STUDYAi Bin1 ,3 , Yang Hongxing2 , Shen Hui1 , Liao Xianbo3(1.Guangzhou Insti tute of Energy Conversion , Ch inese Academy o f Sciences , Guangzhou 510070, China;2.Department of B uilding Services Engineer ing , The Hong Kong Polytechnic U niversity , Hung Hom , Kow loon , Hong Kong;3.Inst itute of S emiconductors , Chinese Academy of Sciences , Beij ing 100083 , China)Abstract:Acco rding to the CAD method for optimum sizing of PV/wind hybrid sy stem a set of match calcula-tion prog rams has been developed.Applying these match calculation prog rams to an assumed PV/wind hybridsy stem to be installed at Wag lan island of Hong Kong , tw o optimum configurations w hich correspond to LPSPvalues equal to 0.1 and 0.01 respectively w ere given based on load demand and hourly solar radiat ion , windspeed and temperature data measured by Hong Kong Observatory in 1989.Hourly , daily , monthly and yearlyperfo rmances of the tw o optimum configurations are also compared in this paper.Keywords:PV/w ind hybrid system;Optimum sizing;CAD method??? E-mail:aibin@ms.giec.ac.cn? aixiaobin@hotmail.com7235 ?　　　　　　　　　　　?　??:?????????????Ⅱ.??????　　　　　　　　　　　　 　

Optimum design of PV/Wind hybrid system II. A case study

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