Design and Implementation of On-board Electrical Power ... - OUFTI-1

More documents

Recommendations

Info

[15] Fabien Jordan, Phase B Electrical Power System (EPS), Report of Diploma, Yverdon,19/12/2006.[16] Robert W. Erickson, Fundamentals of Power Electronics, second edition, Kluwer AcademicPublishers, January 2001, ISBN-10: 0792372700, ISBN-13: 978-0792372707.[17] M.R. Patel, Spacecraft power systems, CRC Press, 2005.[18] James R. Wertz and Wiley J. Larson, “Space Mission Analysis and Design”, 1999[19] Varta Microbattery GmbH, VARTA PoLiFlex R○ Batteries Superior Polymer Technology,Hanbook, February 2008.[20] KOKAM, SPECIFICATION FOR SLPB554374H, Datasheet, QA-070329 .[21] KOKAM, Protection Ciruit Module Specification MODEL : SKP0101-010304-307R5-1,Datasheet, rev 1.0 16Jun2006.[22] PUMPKIN, CubeSat Kit. FM430 Flight Module, Datasheet, Hardeware Revision C, Documentrevision J, San Francisco, USA, June 2008.[23] AzurSpace, 30 % BOL Efficiency Solar Cell, Weight_reduced_III-V_TJ_Cells.ppt.[24] Robert Kollman, “Power Tip #3: Damping the input filter, part 1” in Power ManagementDesignLine, http://www.powermanagementdesignline.com/howto/210500098,09/04/2008.http://batteryworkshop.msfc.nasa.gov/presentations/ThuAM_01_Evaluation_Lithium_Polymer_Bat[25] Evelyne Simon, “Evaluation of Lithium Polymer Batteries”for NASA Battery Workshop, presentation available at2005.102
Appendix AMatlab code for the I-V curves ofsolar panelsThe first function gives the current in one solar cell as a function of the voltage (in V), theinsolation G (with G nom = 1350W/m 2 as unity), and the temperature (in ◦ C).function I = Cell_GaAs(V,G,TaC)%Code produced by the team from the CubeSat SwissCube%and modified by Philippe Ledent (OUFTI-1) (september 2008)% Pierre Thirion (OUFTI-1) (april 2009)%%Model of 30% efficiency solar cell from Azurspace : I=f(V,T)%Use of function : I = Cell_GaAs(V,G,TaC)%V = Voltage on cell terminals [V]%G = relative insolation [-] (G=1 => 1367 W/m^2)%TaC = temperature of the cell in operation [Celsius]%Boltzman constantk = 1.38e-23;%Electric chargeq = 1.60e-19;%Quality factor of the diode (1
Page 2 and 3:
AcknowledgementsI want to thank the
Page 4 and 5:
Contents1 Introduction 91.1 Cubesat
Page 6 and 7:
4.4.2 Mean case . . . . . . . . . .
Page 8 and 9:
B Power budget worksheet 106C Pictu
Page 10 and 11:
design and the tests are delegated
Page 12 and 13:
Chapter 2Requirements of the EPS2.1
Page 14 and 15:
• The Single-Event Upset (SEU)Thi
Page 16 and 17:
the P-POD. RBF pins must fit within
Page 18 and 19:
Figure 2.6: Top view of the PC104 c
Page 20 and 21:
Chapter 3Design of EPS architecture
Page 22 and 23:
• Voltage (4) and current (5) at
Page 24 and 25:
Figure 3.6: The equivalent circuit
Page 26 and 27:
of our Lithium-Polymer batteries va
Page 28 and 29:
Figure 3.12: I-V curve of a solar p
Page 30 and 31:
3.3.3 CapacityA important value to
Page 32 and 33:
Parameter SLPB723870H4 SLPB554374HN
Page 34 and 35:
of the batteries is kept between -2
Page 36 and 37:
Over Charge Prohibition 4.275 ± 0.
Page 38 and 39:
supplied in 5V. The circuit will be
Page 40 and 41:
Chapter 4The Power Budget4.1 Introd
Page 42 and 43:
Figure 4.1: P-V curve of a solar pa
Page 44 and 45:
4.3.2 Efficiency of convertersTo at
Page 46 and 47:
Figure 4.3: Consumptions in % in me
Page 48 and 49:
Chapter 5Electrical Design of EPS5.
Page 50 and 51:
V outV in= D. (5.1)Since D ≤ 1, t
Page 52 and 53: The power losses in the inductor ar
Page 54 and 55: ∆i L,1 + ∆i L,2 = 0, (5.16)V in
Page 56 and 57: Using the value of ∆i L given by
Page 58 and 59: There is no data about the case to
Page 60 and 61: Capacitor selectionFour 10µF ceram
Page 62 and 63: • Output voltage: 5V.• Maximum
Page 64 and 65: Figure 5.12: Burst mode operation (
Page 66 and 67: Figure 5.14: Simplified schematics
Page 68 and 69: Figure 5.15: Worksheet for 3.3V con
Page 70 and 71: sequently, the k was chosen above 0
Page 72 and 73: where G 1 is the initial control-to
Page 74 and 75: Figure 5.21: Measured Bode diagram
Page 76 and 77: Figure 5.26: Equivalence between th
Page 78 and 79: C f =12πf f R 0f,L f = R 2 0f C f
Page 80 and 81: Figure 5.37: Schematics of the firs
Page 82 and 83: R KR >1.45V100mA − 1.3A35= 23.07
Page 84 and 85: The schematics is shown on figure 5
Page 86 and 87: A commercial model meets all requir
Page 88 and 89: Figure 5.45: Schematics of the heat
Page 90 and 91: PrefixX7X5Y5Z5SuffixTemperature ran
Page 92 and 93: 6.2.1 The second dissipation system
Page 94 and 95: • The antenna deployment system.
Page 96 and 97: 6.3.3 TestsThe engineering model of
Page 98 and 99: 7.3 ActivitiesAs OUFTI-1 is designe
Page 100 and 101: 8.1.2 DesignA model of Li-Po batter
Page 104 and 105: TaK = 273 + TaC;%Photo-current ther
Page 106 and 107: Appendix BPower budget worksheetIn
Page 108 and 109: 108
Page 110 and 111: Appendix CPictures of the prototype
Page 112 and 113: Appendix DSchematics of the enginee
Page 114 and 115: 876543213V3 CONVERTER AND INPUT FIL
Page 116: 87654321ANTENNA DEPLOYMENT CIRCUITB
show all

Design and Implementation of On-board Electrical Power ... - OUFTI-1

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?