Abstract: Embodiments of the present application provide electric power supply methods and electric power supply systems related to the field of electrical energy technology. An electric power supply method includes: acquiring an electrical energy parameter of electrical energy delivered by an upstream power supply system, and determining, based on the electrical energy parameter, whether a preset power supply condition for supplying power to a downstream target power-consuming system is met; determining a target distribution port corresponding to the target power-consuming system from a plurality of preset distribution ports when the preset power supply condition is met; controlling a supply of electric power to the target power-consuming system through the target distribution port.

Abstract: A fracturing well site system includes an electric-driven apparatus, a fuel-driven apparatus, an electric-power supply apparatus and a grounding system. The grounding system includes a first grounding terminal which is spaced from each of the electric-driven apparatus, the fuel-driven apparatus and the electric-power supply apparatus by a preset distance. The fuel-driven apparatus and at least one of the electric-driven apparatus and the electric-power supply apparatus are connected to the first grounding terminal, and the first grounding terminal is configured to ground the fuel-driven apparatus and the at least one of the electric-driven apparatus and the electric-power supply apparatus.

Abstract: The present application relates to a fracturing system, a control system of the fracturing system and a method for controlling the fracturing system in wellsite operation, wherein, the control system comprises: a fracturing control device configured to acquire a target fracturing pressure of a fracturing unit, perform closed-loop control on the fracturing unit by taking the target fracturing pressure as a control target, and set a target sand blending pressure for the sand blending unit; a sand blending control device configured to perform closed-loop control on the sand blending unit by taking the target sand blending pressure as a control target.

Abstract: A sand conveying apparatus and a control method thereof, a controlling device, and a storage medium are provided. The sand conveying apparatus includes a storage device, a conveying device, and a hoisting device. The storage device is located above an area where sand needs to be input. The conveying device is connected with the storage device. The conveying device is configured to convey the sand to the storage device. The hoisting device is located above the conveying device. The hoisting device is configured to transport the sand in the sand container to the conveying device through an action of the hoist, and the hoist of the hoisting device is configured to move simultaneously along a plurality of route segments in different directions, so as to realize a linear movement between a first position where the hoist is located and a position where the hopper is located.

Abstract: A control method and a control device applied to an electric fracturing apparatus are provided. The electric fracturing apparatus includes a plunger pump and a first motor configured to drive the plunger pump, and the method includes: acquiring a preset displacement of the plunger pump; acquiring a rotation speed of the first motor and a discharge pressure of the plunger pump; determining a real-time displacement of the plunger pump based on the rotation speed of the first motor and the discharge pressure of the plunger pump and adjusting the real-time displacement; and upon the real-time displacement reaching the preset displacement, allowing the first motor to be kept in a stable operation state.

Abstract: The present disclosure relates to a monitoring system and method for wellsite equipment, used for monitoring abnormities in the monitoring area of wellsite equipment, wherein the monitoring system for wellsite equipment comprises: a dynamic capturing module comprising a video acquisition unit and a dynamic analysis unit, wherein, the video acquisition unit acquires video signals in the monitoring area of wellsite equipment, and the motion analysis unit analyzes and determines whether there is abnormal dynamic activity in the monitoring area of wellsite equipment based on acquired video signals; a temperature detection module comprising a temperature acquisition unit and a temperature analysis unit, wherein the temperature acquisition unit acquires temperature distribution in the monitoring area of wellsite equipment, and the temperature analysis unit analyzes and obtains temperature information in the monitoring area of wellsite equipment based on acquired temperature distribution, and determines whether t

Abstract: The present disclosure relates to a motor malfunction monitoring device, and a drive motor for oilfield operations including: a signal acquisition module configured to acquire operation data of the drive motor, wherein the signal acquisition module comprises a vibration signal acquisition unit and/or an electrical signal acquisition unit, the vibration signal acquisition unit comprises one or more vibration sensors mounted at a component to be detected of the drive motor during use and provided for detecting transverse vibration and/or longitudinal vibration, and/or the electrical signal acquisition unit comprises a voltage sensor and a current sensor for detecting a voltage and a current of the drive motor, respectively; a data storage module storing therein a database of normal operation spectrums created when the drive motor runs normally; and a signal analysis module configured to extract an acquired operation data spectrum of the operation data acquired, compare the acquired operation data spectrum with