theory 600 B

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  1. Maximum power point tracking
  2. Incremental conductance proof:
  3. Pb = Ib * Vb
  4. Ps = Is * Vs
  5. Vb = DVs
  6. D <= 1
  7. Ohm's law: V = IR
  8. I = f(V)
  9. P = IV = Vf(V)
  10. P' = f(V) + Vf'(V) = 0
  11. f'(V) = -f(V)/V = -I/V = -G
  12. ---
  13. State of Charge Estimation
  14. Coulomb Counting using numerical methods:
  15. integral of I dt = Q
  16. for an interval [a,b]
  17. Q = ((b - a) / n)(f(a) / 2 +
  18. P1 = 100 * (Qmax - Q1) / Qmax
  19. Q1 = Qmax - P1 * Qmax / 100
  20. P2 = 100 * (Qmax - Q1 - Q2) / Qmax
  21. = 100 * (Qmax - (Qmax - P1 * Qmax / 100) - Q2) / Qmax
  22. = 100 * (P1 * Qmax / 100 - Q2) / Qmax
  23. = 100 * (P1 / 100 - Q2 / Qmax)
  24. = P1 - 100 * Q2 / Qmax