Method and Apparatus for Unit Control and Photovoltaic Multi-Split Air Conditioning System

The present disclosure provides a method and an apparatus for unit control, and a photovoltaic multi-split air conditioning system. The unit control method includes detecting a temperature of an inverter module of a current unit according to a first preset period; and controlling a demand capacity of the current unit and a photovoltaic power supplied by the current unit not to be increased in a case where the temperature is not less than a first preset threshold.