Maxim cell-string optimisers

Maxim cell-string optimisers are highly integrated DC-DC converters that replace the bypass diode and perform maximum power point tracking (MPPT) deep inside the PV module. By replacing each diode with a MPPT device, the on-off response to performance mismatch is eliminated.

Every cell-string contributes maximum power without interfering with the power production capability of others. This flexibility leads to increased energy production. It eliminates collateral performance loss due to module mismatch, degradation, soiling, localised shading and row shading loss mechanisms.

The product increases energy harvest, with 30% additional power over diodes. It eliminates hotspots and minimises the impact of power degradation mechanisms. It also enables flexible design, incorporating multiple string lengths, orientations and expanding modules into partially shaded areas. Operation is simplified by requiring no additional hardware, specialised inverters or data services.