Abstract: A controller that is associated with a pump system causes a power ramp rate of a motor of the pump system to have an initial power ramp rate. The controller monitors, after causing the power ramp rate of the motor to have the initial power ramp rate, a frequency of a power bus. One or more power sources provide power to the pump system via the power bus. The controller causes, based on monitoring the frequency of the power bus, the power ramp rate of the motor to be modified.

Abstract: In some implementations, a controller may obtain a setting for a target discharge pressure associated with a fluid pump driven by a motor that is controlled by a variable frequency drive (VFD). The target discharge pressure may be for use in a pressure test of a system that includes the fluid pump. The controller may determine a target torque for the motor that achieves the target discharge pressure. The controller may cause, via the VFD and in connection with the pressure test, adjustment to a speed of the motor to achieve the target torque for the motor.

Abstract: In some implementations, a controller may monitor an available power supply of at least one power source for a system for hydraulic fracturing, and a current power demand of the system. The controller may determine, based on monitoring the available power supply and the current power demand, whether a relationship between the current power demand and the available power supply is indicative of an impending power failure. The controller may cause, based on determining that the relationship between the current power demand and the available power supply indicates the impending power failure, reduction of flow rates of one or more fluid pumps of the system to reduce the current power demand.

Abstract: Embodiments described herein relate to a drilling rig electrical system. An example system in accordance with embodiments can include one or more engine generators to provide (Alternating Current) AC electrical power to an AC bus, a rectifier to convert AC electrical power from the AC bus to Direct Current (DC) electrical power of a DC bus, and drilling rig equipment coupled to the DC bus. The drilling rig equipment can include a drawworks inverter configured to draw electrical power from the DC bus. The drilling rig system also includes an energy storage device to store electrical energy received from the DC bus. The energy storage device includes a battery bank and a DC to DC converter coupled between the battery bank and the DC bus. The DC to DC converter is configured to switch between a battery charging mode and a battery discharging mode based on a DC bus voltage.