To keep solar power at grid parity with competing methods of power generation, performance and power conversion efficiency are critical. Small increments in power production can impact profitability of solar power generation. Engineers need to ensure that their solar inverters can convert maximum power from the connected solar array. However, developing and verifying the performance of inverter maximum power point tracking (MPPT) algorithms and circuits is complex, while testing is difficult, expensive and time consuming.
Multiple MPPT inverters provide flexibility for large commercial arrays but create a test challenge as current solutions test one MPPT channel at a time. The Keysight PV8900 Series along with the DG9000A advanced photovoltaic inverter test software goes beyond existing standards, testing up to 12 MPPT channels simultaneously.