Correcting accumulated power in utility meters

摘要

A system includes a utility meter. The utility meter includes a first sensor configured to detect a usage, a generation, or a combination thereof of electric power, and a power detection and correction system configured to detect and correct an inaccuracy with a measurement of an electrical voltage, electrical current, or a combination thereof from the first sensor. The power detection and correction system includes a processor configured to execute a program stored in a memory of the utility meter.

主权项

1. A meter, comprising:
a voltage sensor configured to measure a voltage over a time period; and a current sensor configured to measure current over the time period; a processor; a memory including instructions that, when executed by the processor, cause the processor to perform operations comprising:
calculating, based on a product of the voltage over the time period and the current over the time period, a power over the time period;summing an absolute value of the power over the time period;determining whether the power over the time period is:
delivered to a load connected to the meter; orreceived from a source connected to the meter;correcting an accumulated power registered by the meter by performing one of:
adding the sum of the absolute value of the power over the time period to the accumulated power if the power over the time period is delivered to the load connected to the meter, andsubtracting the sum of the absolute value of the power over the time period from the accumulated power if the power over the time period is received from the source connected to the meter.