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An electronic load interface (ELI) for improving the operational margin of a photovoltaic (PV) dual‐converter system under dynamic conditions is presented. The ELI – based on a modified buck–boost converter – interfaces the output of the converters and the load system. It improves the operational margin of the PV dual‐converter system by extending the conditions under which the dual‐converter system operates at the maximum power point. The ELI is activated as and when needed, so as minimise system losses. By employing the ELI, utilisation and efficiency of a PV dual‐converter system increases. In general, the concept of the ELI can be applied to multi‐converter PV systems – such as multi‐converter inverters, and multi‐converter DC–DC converter systems – for performance and efficiency improvement. [ABSTRACT FROM AUTHOR]