Many investors are working with small powers of a fixed voltage as the interference due to the internal PWM switching frequency. It makes it difficult to identify small current signal and powers down accordingly proper investigation PPE . Consequently, for small powers, operation sound is always still possible with this strategy.

However, for power optimizers, according to the position of the MPP voltage Umpp effective, more or less energy is delivered, because the energy supplied by the photovoltaic generator is not fully used, particularly when the voltage is fixed as in the Figure 5 Umpp effective remote voltage. It would probably be preferable for small powers, eg to work at 0.8 times the load voltage previously measured the UOC. The inverter presents the drawbacks static MPPT behavior significantly greater than their blood work only slightly below CDU Umpp, even small powers, which translates into lower MPPT energy losses and therefore higher performance .

The performance MPP-Tracking a Static MPPT NT 4000 and a GI of 30 years, according PMPP PPE three and four different voltages. A small power, the MPPT behavior of the IG 30 is significantly greater. Introduction tot the total yield can now, with almost a fundamental review, submit tot the total return of a UPS. The solar panel provided on the basis of the flow of radiation and temperature T G, a power to determine PMPP. However, the UPS in stationary mode only the values of the total return of a UPS is therefore a characteristic quality direct to the practice that has a greater relevance than pure conversion efficiency.

MPPT depends, of course, also PMPP and Umpp and must be determined by appropriate measures. The total performance tot two investors only calculated in accordance with MPP power standards PMPP / PDCN PPE three and four different voltages. To briefly describe the behavior of a single value of an investor, tot and MPPT can also calculate an average return (eg, the European yield).

Because the EU does not refer to PMPP. Test MPP-Tracking Out of the dynamic behavior of a static operation, which can be fully described, MPPT and tot, the dynamic behavior we are interested also in practice. The relatively rapid changes between the two levels of PMPP known values are useful for dynamic tests that simulate sunlight alternate days.