A battery swapping system includes: a transformer, a power conversion system, a bus apparatus, a control apparatus, and a plurality of battery swapping compartments, where the plurality of battery swapping compartments are connected to the power conversion system through the bus apparatus; the power conversion system is connected to an external power grid of the battery swapping system through the transformer; the control apparatus is connected to the plurality of battery swapping compartments; the plurality of battery swapping compartments are configured to store a plurality of traction batteries; and the control apparatus is configured to control a first target traction battery to transmit electric energy to the power grid, and is further configured to control a second target traction battery to acquire electric energy from the power grid.

A battery swapping system includes: a transformer, a power conversion system, a bus apparatus, a control apparatus, and a plurality of battery swapping compartments, where the plurality of battery swapping compartments are connected to the power conversion system through the bus apparatus; the power conversion system is connected to an external power grid of the battery swapping system through the transformer; the control apparatus is connected to the plurality of battery swapping compartments; the plurality of battery swapping compartments are configured to store a plurality of traction batteries; and the control apparatus is configured to control a first target traction battery to transmit electric energy to the power grid, and is further configured to control a second target traction battery to acquire electric energy from the power grid.

An energy storage system includes a battery container including a master battery container and sub-battery containers electrically connected to each other, and a power conversion system (PCS), wherein the master battery container includes battery racks, a system battery management system (BMS) configured to monitor states of the battery racks and of battery racks included in the plurality of sub-battery containers, and configured to control operations thereof, a master programmable logic controller (PLC) configured to monitor a state of the master battery container, a first switch controlled by a switching control signal generated by the master PLC upon receiving a request from the system BMS, and a second switch controlled by a switching control signal of the system BMS, wherein the system BMS and the PLC are further configured to transmit or receive data through a contact method.

At least one aspect of the present disclosure is directed to systems and methods for application specific battery container configurations. A controller can receive, from the microgrid, an indication of demand for power to complete operations within a worksite. The microgrid supplied with power from one or more of a plurality of energy containers in a first configuration. The controller can determine to identify a second configuration for the plurality of energy containers, based on the first configuration as compared to a one or more criteria. The controller can identify the second configuration of the plurality of energy containers, which satisfies the one or more criteria. The controller can modify a configuration of the plurality of energy containers to complete the operations within the worksite, from the first configuration to the second configuration.

A method for discharging energy storage cells of an energy storage system, the method including: a) determining a system charge, Sys_charge_As, to be discharged from the energy storage cells based on a configuration of the energy storage system; b) determining a balancing map based on predefined criteria, wherein the balancing map includes an entry for each energy storage cell, and each energy storage cell is associated with at least a balancing flag; c) determining, whether the energy storage system is ready to discharge; and d) discharging the energy storage system, when the energy storage system is determined to be ready for discharge.

A method is disclosed. The method includes receiving, by an electric vehicle, a list of available services associated with an electricity supply terminal. The list of available services includes one or more methods that do not transmit credentials or tokens via a charging cable and one or more methods that do transmit credentials or tokens via the charging cable. The method also includes determining, by the electric vehicle, a set of services in the list of available services. The set of services includes services supported by the electric vehicle. The method also includes transmitting, by the electric vehicle to the electricity supply terminal, a service selection request comprising a service in the set of services. The method also includes receiving, by the electric vehicle from the electricity supply terminal via the charging cable, electricity from the electricity supply terminal.

A method is disclosed. The method includes receiving, by an electric vehicle, a list of available services associated with an electricity supply terminal. The list of available services includes one or more methods that do not transmit credentials or tokens via a charging cable and one or more methods that do transmit credentials or tokens via the charging cable. The method also includes determining, by the electric vehicle, a set of services in the list of available services. The set of services includes services supported by the electric vehicle. The method also includes transmitting, by the electric vehicle to the electricity supply terminal, a service selection request comprising a service in the set of services. The method also includes receiving, by the electric vehicle from the electricity supply terminal via the charging cable, electricity from the electricity supply terminal.

Methods and systems for charging a battery utilizing a negotiable power supply in which the power supply and a component of a charge circuit negotiate a level of power are disclosed. A charge circuit may include a controller to communicate with the negotiable power supply to request a power signal comprising a voltage and a maximum current, which may then be provided by the negotiable power supply. A voltage value and/or maximum current value of the negotiated power signal may be provided as parameters to a model of one or more components of a charge signal shaping circuit. The circuit model may utilize the provided power parameters when modeling one or more charge circuit components to generate an accurate model of the charge circuit and used to control a charge circuit to provide power to recharge the battery that limits a power level that may damage the battery during charging.