A backup battery control module configured to supply electric power from a backup battery to a load when electric power supply from a main battery to the load is cut off. The backup battery control module is configured to: measure an open circuit voltage of the backup battery in a state in which an ignition switch is off; derive, based on a measured open circuit voltage, an already charged rate of the backup battery; measure an internal resistance of the backup battery in a state in which the ignition switch is off; derive a deterioration degree of the backup battery based on a measured internal resistance; derive a target charging rate based on the deterioration degree; and charge the backup battery until the target charging rate is reached in a case in which it is determined that the already charged rate is smaller than the target charging rate.

A backup battery control module configured to supply electric power from a backup battery to a load when electric power supply from a main battery to the load is cut off. The backup battery control module is configured to: measure an open circuit voltage of the backup battery in a state in which an ignition switch is off; derive, based on a measured open circuit voltage, an already charged rate of the backup battery; measure an internal resistance of the backup battery in a state in which the ignition switch is off; derive a deterioration degree of the backup battery based on a measured internal resistance; derive a target charging rate based on the deterioration degree; and charge the backup battery until the target charging rate is reached in a case in which it is determined that the already charged rate is smaller than the target charging rate.

This application relate to the field of communications technologies, and disclose a backup power supply control method, to obtain target power supplying duration of a battery, and determine average power consumption of a communication station (101) within a time period corresponding to the target power supplying duration. Further, a state of charge of the battery is obtained, and actual power supplying duration for the battery to supply power to the communication station (101) is determined based on the state of charge of the battery and the average power consumption. Therefore, an operation mode of a communication device in the communication station (101) may be adjusted, to reduce the average power consumption of the communication station (101) within the time period corresponding to the target power supplying duration.

This application relate to the field of communications technologies, and disclose a backup power supply control method, to obtain target power supplying duration of a battery, and determine average power consumption of a communication station (101) within a time period corresponding to the target power supplying duration. Further, a state of charge of the battery is obtained, and actual power supplying duration for the battery to supply power to the communication station (101) is determined based on the state of charge of the battery and the average power consumption. Therefore, an operation mode of a communication device in the communication station (101) may be adjusted, to reduce the average power consumption of the communication station (101) within the time period corresponding to the target power supplying duration.

A control device for a power generation system comprising an energy storage system (ESS) and a power plant is provided. The control device includes: a controller configured to compare a supply frequency of a supply power supplied to a consumer with a reference frequency, compare a charge amount of the ESS with a reference charge amount, and control the ESS and the power plant such that the supply power is controlled according to a result of the frequency comparison and a result of the charge amount comparison, an opening degree control device configured to control an opening degree of a steam valve disposed in the power plant by the control of the controller, and a fuel quantity control device configured to control a quantity of fuel injected into the power plant for power generation by the control of the controller.

A control device for a power generation system comprising an energy storage system (ESS) and a power plant is provided. The control device includes: a controller configured to compare a supply frequency of a supply power supplied to a consumer with a reference frequency, compare a charge amount of the ESS with a reference charge amount, and control the ESS and the power plant such that the supply power is controlled according to a result of the frequency comparison and a result of the charge amount comparison, an opening degree control device configured to control an opening degree of a steam valve disposed in the power plant by the control of the controller, and a fuel quantity control device configured to control a quantity of fuel injected into the power plant for power generation by the control of the controller.

An integrated, portable, battery-powered, variable-pressure electric liquid pump and power emergency station including a remote wireless communication unit located remotely from and in wireless communication with the emergency station to improve wireless reception in the integrated, portable, battery-powered, variable-pressure electric liquid pump and power emergency station.

An integrated, portable, battery-powered, variable-pressure electric liquid pump and power emergency station including a remote wireless communication unit located remotely from and in wireless communication with the emergency station to improve wireless reception in the integrated, portable, battery-powered, variable-pressure electric liquid pump and power emergency station.

A plant for melting and/or heating metal material includes a furnace, electrical energy feed means and an electric power apparatus connected between the feed means and the furnace; and a corresponding method to power the melting and/or heating plant.

An airport ground power unit for supplying electric current to a parked aircraft and a related system and method. The ground power unit includes a first electric battery, an inverter for transforming an output current of the battery to an alternating output current to be supplied to the aircraft, and one or more first electronic switches for connecting and disconnecting the first battery to and from the inverter. The first switches are connected in serial to the first battery, and together connected to the inverter. A first controller unit controls at least one of the one or more first switches. The ground power unit further includes a second electric battery and second electronic switches for connecting and disconnecting the second battery. The second switches are connected in serial to the second battery and are together connected to the inverter such that they are in parallel to the serially connected first battery and the first switches. At least one of the second switches is controlled by the first or a second digital controller unit.