US 2022/0285976 A1 · SYSTEM AND METHOD FOR USING A UPS TO DYNAMICALLY CONTROL THE AMOUNT OF AC POWER RECEIVED FROM A UTILITY POWER SOURCE

Abstract

The present disclosure relates to an uninterruptible power supply (UPS) for monitoring and prioritizing use of available power. The UPS has an electronic controller with a memory and a software control module. The UPS also has a battery, a rectifier for rectifying available AC power from a primary external AC power source to produce DC power, an inverter in communication with the rectifier for generating AC power from the DC power provided by the rectifier, and a DC/DC converter in communication with the rectifier for producing a DC charging current for use in charging the battery. The electronic controller and the software control module are configured to dynamically prioritize the use of available power from at least one of the primary AC power source and from the battery, to maintain adequate power to a load being supported by the UPS, as well as to charge the battery of the UPS when predetermined operating conditions are met.

Claims19

Dependent claims

An uninterruptible power supply (UPS) for monitoring and prioritizing use of available power, the UPS comprising:

an electronic controller having a memory and a software control module;
a battery;
a rectifier for rectifying available AC power from a primary AC power source to produce DC power;
an inverter in communication with the rectifier for generating AC power from the DC power provided by the rectifier;
a DC/DC converter in communication with the rectifier for producing a DC charging current for use in charging the battery;
and
the electronic controller and the software control module configured to dynamically prioritize the use of available power from at least one of the primary AC power source and from the battery, to maintain adequate power to a load being supported by the UPS, as well as to charge the battery of the UPS when predetermined operating conditions are met.

4 more elements

A method of using an uninterruptible power supply (UPS) for monitoring and prioritizing use of available power, the method comprising:

providing a UPS having a memory, a software control module, a battery, and setpoints for maximum input current to be drawn by the UPS, maximum power input to be drawn by the UPS, and maximum battery charging current to be drawn by the UPS for charging the battery;
using the electronic controller and the software control module to:
monitor power being provided by the primary AC power source;
determine if the power being provided by the primary AC power source is sufficient to both charge the battery and meet the load requirement without exceeding the maximum input current and the maximum power input;
reduce a charging current being supplied by the UPS to the battery by a predetermined amount to reduce the charging current from a first level to a second level less than the first level;
make a determination if the load requirement can be met by the UPS while the charging current is maintained at the second level;
and
when the load requirement can be met while the charging current is maintained at the second level, to continue with operation of the UPS supporting the load requirement while simultaneously continuing charging of the battery at the second level of the charging current.

5 more elements

Dependencies are inferred from the claim text.

System and method for using a ups to dynamically control the amount of ac power received from a utility power source

Life of this patent

System and method for using a ups to dynamically control the amount of ac power received from a utility power source

Life of this patent

Abstract

Claims19