Get An Illustrated Guide to USAF the Modern US Air Force PDF

By Bill Gunston

ISBN-10: 0668054972

ISBN-13: 9780668054973

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Example text

6. 1. Input values Supervisor inputs are numerical values dependent on the set objectives: – the first objective is to maintain the DC bus voltage. Therefore, the first input is represented by the numerical value of the DC voltage: Vbus; – the second objective is to maintain the energy supply by the local source, where possible. Therefore, the second input is represented by the numerical value of the current supplied by the source: Igen; – the third objective is to contribute to the stabilization of power peaks.

32 shows the evolution of the variable Ptotal_ref, as a function of the storage state of charge (Stock_nive), when the DC bus voltage is medium (Vbus M). 32. 33 shows the evolution of the variable Ptotal_ref, as a function of the storage state of charge (Stock_nive), when the DC bus voltage is high (Vbus H). 33. 34 shows the evolution of the variable Ptotal_ref, as a function of the storage state of charge (Stock_nive), when the DC bus voltage is low (Vbus L). 34. 1. 34. 35). 35. 35. 36 shows the evolution of the variable Ptotal_ref, as a function of the storage state of charge (Stock_nive), when the generator produces a medium level of current (Igen NM).

2. 2. 25; Local DC Grid with Energy Exchange for Applications in Aviation 43 It must be specified that the storage level is considered to be 0% (Stock_nive = 0%) when the VSC voltage at the terminals of the supercapacitors represents half of the nominal voltage VSC_nom. 23. Level 1 – membership functions of the source current. 24. 25. 26. 29. For the moment, the membership functions of the variables of level N2 (Level 2 of supervision) are determined empirically. 27. 11. 30, where level N1 corresponds to mode detection: active if Igen ≠ 0, regenerative if Igen = 0.

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An Illustrated Guide to USAF the Modern US Air Force by Bill Gunston


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