The present paper presents a system intended to be used in the development of photovoltaic inverters with maximum power point tracking capability. A simulation model was implemented in MATLAB/SIMULINK and an experimental model composed of a DSpace 1104 controller board, a Semikron inverter, a coupling transformer, an LC filter and two 75W solar panels was developed. The system facilitates the development and testing of digital control and MPPT algorithms for single-phase inverters connected to the utility grid.