System, method and apparatus for computing, monitoring, measuring, optimizing and allocating power and energy for a rod pumping system

摘要

A system and methods are provided for controlling a motor of a rod pumping system using previous RPMs of the motor and predicting an RPM of the motor; correcting a power factor of a motor of a rod pumping system; allocating energy consumption and allocating energy generation for a set of wells connected to an electricity meter using an amount of energy generated by each well; and generating an alert if a set of data is beyond a threshold for the set of data.

主权项

1. A method for controlling a motor connected to a rod pumping system and switchably connected to a voltage supply, utilizing an energy monitoring device connected to the motor and the voltage supply, the method comprising the steps of:
determining a last RPM pulse of the motor; measuring a new RPM pulse of the motor; calculating an instant RPM from the new RPM pulse and the last RPM pulse; measuring a present frequency of the voltage supply; calculating a motor synchronous speed from the present frequency; determining a switch command based on the instant RPM and the motor synchronous speed; determining a status of the voltage supply; determining whether the instant RPM is greater than the motor synchronous speed if the status of the voltage supply is off; determining whether the instant RPM is less than the synchronous speed if the status of the voltage supply is on; sending a voltage-off command as the switch command if the status of the voltage supply is on and the instant RPM is not less than the synchronous speed; and, sending a null command as the switch command if the status of the voltage supply is on and the instant RPM is less than the motor synchronous speed.