METHOD OF DIAGNOSING DEFECTIVE ELEMENTS IN A STANDALONE SYSTEM, POWERED BY AN INTERMITTENT POWER SOURCE

摘要

The diagnostic method applies to a standalone system comprising a generator, a power regulator and an energy storage element. The method comprises the comparison (F2, F22) of the power or the real charge current (Pbatt/lbatt) of the energy storage element respectively to a predefined power or current threshold. If the real charge power or current (Pbatt/lbatt) is less than said threshold, the energy storage element is disconnected (F3, F23). An abnormal behaviour is then detected either by comparing (F8, F13) the real charge power (Pbatt) to the smallest (F7) of the values representative of the theoretical charge power (Pthbatt) of the energy storage element and the maximum power (Pmpp) that can be delivered by the generator, and by comparing the real (Ubatt) and theoretical (Uthbatt) charge voltages (F10), either by comparing the real (Ibatt) and theoretical (Ithbatt) charge currents (F26).