Uninterruptible power supply control

A method for controlling an uninterruptible power supply having a first input configured to receive input power from a first power source, a second input configured to receive input power from a second power source, an output configured to provide output power to a load derived from power from at least one of the first power source and the second power source, the method comprising:

• in a first mode of operation, controlling the uninterruptible power supply to provide an output voltage of the output power at substantially a first voltage level;
• generating a profile of the load;
• in a second mode of operation, controlling the uninterruptible power supply to provide an output voltage at substantially a second voltage level, with the second voltage level being less than the first voltage level;
• setting the second voltage level based on the generated profile;
• detecting that a capacity of the load has changed by a threshold amount;
• and
• in response to the detection, generating an updated profile of the changed load.

An uninterruptible power supply (UPS) system comprising:

• a first input configured to receive input power from a first power source;
• a second input configured to receive input power from a second power source;
• an output configured to provide output power to a load derived from power from at least one of the first power source and the second power source;
• means for detecting a profile of the load;
• means for controlling an output voltage of the UPS system including means for detecting that output power is being provided by the second power source, and in response, reducing an output voltage of the UPS system to a reduced voltage level based on the profile of the load;
• means for detecting a change in a characteristic of the load and updating the profile of the load based on the change.