METHOD AND SYSTEM FOR POWERING A LOAD

摘要

A method of controlling an electrical power supply to a load, wherein said load has an associated power threshold, is provided. The method comprises using a first electrical power source to generate a first amount of power for supply to the load, wherein said first electrical power source comprises a renewable source, and determining whether to supply a second amount of power to the load from a second, different electrical power source. If it is determined that the second electrical power source should be used to supply a second amount of power to the load, controlling an output of the second electrical power source so that a combined amount of power supplied to the load from the first and second electrical power sources meets the power threshold associated with the load.

主权项

1. A method of controlling an electrical power supply to an AC load, wherein said load has an associated power threshold, the method comprising:
providing a drive configured to output an AC voltage lower than that required by the load, the drive having an input and being arranged to output to a first voltage converter before power from the drive is output to the load; using a first electrical power source to generate a first amount of power for supply to the load, wherein said first electrical power source comprises a renewable source and wherein the first electrical power source is arranged to output power to the input of the drive; comparing the first amount of power generated by the first electrical power source with the power threshold associated with the load; as a result of said comparison, determining whether to supply power to the load from the first power source and further determining whether to supply a second amount of power to the load from a second, different electrical power source, the second electrical power source being arranged to output to a second voltage converter before power from the second electrical power source is output to the input of the drive; and if it is determined that the second electrical power source should be used to supply a second amount of power to the load, controlling an output of the second electrical power source so that a combined amount of power supplied to the load from the first and second electrical power sources meets the power threshold associated with the load.