A microgrid controller may measure a group state-of-charge (SOC) of a group of energy storage systems (ESSs), calculate a total real power demanded by a plurality of loads, determine an available real power for a group of renewable-energy-based (REB) energy resource systems, determine whether the available real power is greater than a sum of the total real power and an ESS parasitic consumption of the group of ESSs, and, based on the available real power being greater than the sum, generate first control signals for turning off a group of fuel-based (FB) energy resource systems or for maintaining the group of FB energy resource systems in an off-state, or, based on the available real power being less than or equal to the sum, generate second control signals for turning on the group of FB energy resource systems or for maintaining the group of FB energy resource systems in an on-state.

A system for managing transferring of electrical power includes a power converter and a controller. The power converter is configured for receiving input power from a power source through a first connector, converting the input power to output power using a power conversion information based on the receiving, and supplying the output power to a power storage device through a second connector based on the converting. The power storage device includes an ultra-wideband gap semiconductor material. The supplying of the output power includes charging the power storage device based on the output power and the ultra-wideband gap semiconductor material. The power storage device stores power based on the charging. The controller is communicatively coupled with the power converter. The controller is configured for generating the power conversion information.

A charger, a charging control circuit, and a method for controlling a charger. The charger includes a housing, a knob, a knob detection structure, a main control board, a display, and a charging control unit. The knob detection structure is configured to detect at least rotation parameters of the knob, and the rotation parameters include at least one of a rotation angle and a rotation direction. The main control board is configured to control the charging control unit to operate according to at least the rotation parameters, and the main control board is further configured to control the display to display charging information of the charging control unit.

A cell balancing current control device and method for a battery pack are capable of reflecting a resistance value depending on a length of a flat cable which connects each cell of a multi-series battery and a battery management system (BMS) (that is, cell to BMS connection) to control an on/off duty ratio of a switching module for applying a cell balancing current to be different for each individual cell, and a battery pack. Cell balancing current control is based on an on/off duty of a switching module calculated by reflecting the resistance value depending on the length of the flat cable.

The present application discloses a multi-port output control circuit, a power circuit, and a charging apparatus. The multi-port output control circuit comprises N output control modules, M transformer modules, and a controller. Each of the output control modules comprises an output port configured to be connected to an external device. Each of the transformer modules is connected to at least two output control modules, wherein M<N. The controller is connected to each of the output control modules to control the output control modules. Based on a number of external devices simultaneously connected to the output ports not exceeding M, the transformer modules are configured to supply power to the external devices through the output control modules.

A recreational vehicle (RV) includes a battery module that is charged when the RV battery module has a state of charge below a threshold and voltage is received at one or more of an RV AC input receptacle and a bi-directional receptacle, or voltage is received at a solar module. AC voltage is provided at an AC outlet receptacle to power one or more of a grid and a building when the battery module has a state of charge above a threshold and voltage is received at one or more of the RV AC input receptacle and the bi-directional receptacle, or DC voltage is received at the solar module. AC voltage is provided at the AC outlet receptacle to power the building when the battery module has a state of charge above a threshold and no voltage is received at the RV AC input receptacle or the RV bi-directional receptacle.

At least a part of AC power received by a power receiving coil at a position where magnetic coupling with a power transmitting coil is possible is supplied from a circuit that functions as a current source to a load. At this time, an electrical characteristic of a current source in this circuit is detected, and switching between a first state of supplying a first current from the current source to the load and a second state of supplying a second current smaller than the first current from the current source to the load is performed to feedforward-control a ratio of the first state or the second state to one cycle of the AC power according to the detected electrical characteristic.

A battery pack control method includes: detecting real-time load power of a multi-battery pack system; and when the real-time load power is less than a first power threshold, and at least two battery packs discharge in parallel, determining a target battery pack from the battery packs discharging in parallel, maintaining a discharge function of the target battery pack, and disabling a discharge function of another battery pack discharging in parallel other than the target battery pack.

A method for dynamically adjusting power, a battery management system, a device, a medium, and a vehicle are disclosed. The method for dynamically adjusting power includes acquiring power information, calculating a discharge power integral value within a preset time threshold, calculating a discharge energy according to the power information, and determining whether it is necessary to adjust the maximum allowable output power from first time discharge power to second time discharge power, or to adjust the maximum allowable output power from the second time discharge power to the first time discharge power based on the discharge power integral value and the discharge energy.

A battery management system includes a sensing unit to generate a sensing signal indicating a battery voltage and a battery current of a battery, a memory unit to store a charge map recording a correlation between first to n.sup.th reference state of charge (SOC) ranges, first to n.sup.th reference currents and first to n.sup.th reference voltages for multi-stage constant-current charging, and a control unit to change to constant voltage charging using a k.sup.th reference voltage corresponding to a k.sup.th reference SOC range in response to the battery voltage having reached the k.sup.th reference voltage during constant current charging using a k.sup.th reference current corresponding to the k.sup.th reference SOC range to which an SOC of the battery belongs. The control unit updates the k.sup.th reference current of the charge map based on a time-series of the battery current in a charging period of the constant voltage charging.