Abstract: A group control device includes a central processing system. An output port of the central processing system is electrically connected to an input port of a display unit through a first wire. An output port of the display unit is electrically connected to an input port of a signal feedback module through a second wire. The output port of the signal feedback module is electrically connected to an input port of the central processing system through a third wire. The input port of the central processing system is electrically connected to an input port of the group control host operating terminal. The input port of the group control host operating terminal is electrically connected to an output port of a data sending module. The central processing system is bidirectionally connected with a retrieval and extraction module through wireless connection.

Abstract: A frequency converter module includes a frequency control management module. An input port of the frequency conversion control management module is electrically connected to an input port of a power supply module. The power accuracy monitoring module includes an initial power measuring module, a power prediction correction module, and an actual power display storage module. An output port of the initial power measuring module is electrically connected to an input port of the power prediction correction module. An output port of the power prediction correction module is electrically connected to an input port of the actual power display storage module.

Abstract: Disclosed herein are multi-source microgrid power supply systems including a rectifier having an incoming line terminal connected to a low-voltage side of a transformer and an outgoing line terminal connected to a DC bus having one terminal connected to the outgoing line terminal of the rectifier, an inverter having an incoming line terminal connected to the DC bus and an outgoing line terminal connected to oil well equipment, a first voltage regulator having an incoming line terminal connected to a photovoltaic array and an outgoing line terminal connected to the DC bus, a second voltage regulator having an incoming line terminal connected to an energy storage unit and an outgoing line terminal connected to the DC bus, and a third voltage regulator having an incoming line terminal connected to a wind power generation unit and an outgoing line terminal connected to the DC bus.

Abstract: A frequency converter module includes a frequency control management module. An input port of the frequency conversion control management module is electrically connected to an input port of a power supply module. The power accuracy monitoring module includes an initial power measuring module, a power prediction correction module, and an actual power display storage module. An output port of the initial power measuring module is electrically connected to an input port of the power prediction correction module. An output port of the power prediction correction module is electrically connected to an input port of the actual power display storage module.

Abstract: A group control device includes a central processing system. An output port of the central processing system is electrically connected to an input port of a display unit through a first wire. An output port of the display unit is electrically connected to an input port of a signal feedback module through a second wire. The output port of the signal feedback module is electrically connected to an input port of the central processing system through a third wire. The input port of the central processing system is electrically connected to an input port of the group control host operating terminal. The input port of the group control host operating terminal is electrically connected to an output port of a data sending module. The central processing system is bidirectionally connected with a retrieval and extraction module through wireless connection.