A system can include one or more processors; memory; a data interface that receives data; a control interface that transmits control signals for control of pumps of a hydraulic fracturing operation; and one or more components that can include one or more of a modeling component that predicts pressure in a well fluidly coupled to at least one of the pumps, a pumping rate adjustment component that generates a pumping rate control signal for transmission via the control interface, a capacity component that estimates a real-time pumping capacity for each individual pump, and a control component that, for a target pumping rate for the pumps during the hydraulic fracturing operation, generates at least one of engine throttle and transmission gear settings for each of the individual pumps using an estimated real-time pumping capacity for each individual pump where the settings are transmissible via the control interface.

A fracturing apparatus may include a first plunger pump including a first power end and a first hydraulic end; a prime mover including a first power output shaft; and a first clutch including a first connection portion and a second connection portion. The first power end of the first plunger pump includes a first power input shaft, the first connection portion is coupled to the first power input shaft, the second connection portion is coupled to the first power output shaft of the prime mover.

A fracturing apparatus, a control method of the fracturing apparatus and a fracturing system. The fracturing apparatus includes a plunger pump, a prime mover, a clutch and a clutch hydraulic system. The prime mover includes a power output shaft, and the clutch includes a first connection portion, a second connection portion and a clutch portion between the first connection portion and the second connection portion. The power end of the plunger pump includes a power input shaft, the first connection portion is connected with the power input shaft, the second connection portion is connected with the power output shaft of the prime mover, and the clutch hydraulic system is configured to provide hydraulic oil to the clutch. The fracturing apparatus further includes a first pressure sensor arranged in the clutch hydraulic system and configured to detect the hydraulic pressure of the clutch hydraulic system.

An electric pump system includes: a pump configured such that a discharge flow rate is controlled in accordance with an opening degree of a solenoid valve, the operation of the solenoid valve being controlled by energization; an electric motor configured to drive the pump; and a control device configured to control the operations of the solenoid valve of the pump and the electric motor based on the command signal indicating the required discharge flow rate or the required discharge pressure of the pump. The control device is configured to adjust the operations of the solenoid valve and the electric motor when the determination condition, which is for determination of whether a predetermined vibration is generated in the electric pump system or the CVT, is satisfied.

A device for monitoring pump equipment may include a pump monitoring device comprising sensor devices configured to monitor the pump equipment, a controller configured to configure the sensor devices and collect sensor data from the sensor devices, and a wireless transceiver configured to communicate with a cellular base station. The device may further include a battery configured to provide power to the pump monitoring device; a solar panel; a charging system to charge the battery using the solar panel; and a chassis configured to secure the pump monitoring system, battery, solar panel, and charging system into a self-contained mobile monitoring device.