The disclosure is directed to balancing equipment for a grid comprising: a grid input; a transformer comprising a first winding connected to the output of said grid input; a first inverter connected to said transformer; a system of batteries connected to said first inverter; a supervisory unit set up to activate said first inverter and to ensure the charging or discharging of said batteries when an imbalance is detected; and a second inverter connected at the input to said second winding of said transformer and at the output to at least one charging plug of an electric or hybrid vehicle; said supervisory unit being set up to activate said second inverter when a charging need is detected at said recharging plug and when the injection needs on the grid are lower than a threshold value.

A power control system includes: a first energy storage system; a bidirectional AC/DC converter connected between an AC power system and the first energy storage system; and a control device for controlling an operation of the bidirectional AC/DC converter. The control device controls the operation of the bidirectional AC/DC converter to control charging and discharging of the first energy storage system. The power control system includes: a circuit breaker connected between the AC power system and the bidirectional AC/DC converter; a resistor connected between the circuit breaker and the bidirectional AC/DC converter; and a switch for forming a discharge path for discharging the DC power of the first energy storage system via the resistor, while the circuit breaker is open.

A charging apparatus, a charging method and a charging system are provided. The charging apparatus includes three charging modules. A first charging module receives a first voltage of an AC grid, converts the first voltage into a first output voltage, and provides the first output voltage to a first device for charging. A second charging module receives a second voltage of the AC grid, converts the second voltage into a second output voltage, and provides the second output voltage to a second device for charging. A third charging module receives a third voltage of the AC grid, converts the third voltage into a third output voltage, and provides the third output voltage to a third device for charging. The first voltage, the second voltage and the third voltage have the same frequency and amplitude, and the phase difference is 120 degrees.

A control device of a charging system is configured to execute acquiring a first index value indicating a deterioration degree of a low-voltage battery of the charging system, acquiring a second index value indicating a degree of whether or not a state in which the low-voltage battery is placed is a state in which the state is likely to deteriorate, and setting a specified range that is a range of input and output power to the low-voltage battery based on the first index value and the second index value.

An energy storage device mounted in a moving body, the energy storage device including a plurality of thin-coated cells to which first active materials having thicknesses within a first range are applied between a current collector and a separator, and a plurality of thick-coated cells to which second active materials having thicknesses within a second range whose lower limit value is greater than an upper limit value of the first range, are applied between the current collector and the separator. The thin-coated cells and the thick-coated cells are alternately arranged at predetermined intervals.

A wireless charging device is disclosed for communicating with and charging wirelessly chargeable batteries for powering surgical instruments. The wireless charging device comprises a housing defining wireless charging bays each for receiving and charging one of the batteries, power antennas for wirelessly charging a battery received by an associated wireless charging bay, and communication antennas for wirelessly communicating with the battery received by the associated wireless charging bay. The wireless charging device ceases communication between a first of the communication antennas associated with a first of the wireless charging bays and a first battery received by the first of the wireless charging bays and, responsive to ceasing communication between the first of the communication antennas and the first battery, controls a second of the communication antennas associated with a second of the wireless charging bays to communicate with a second battery received by the second of the wireless charging bays.

Systems and methods for charging batteries of electric container handling equipment at container terminals comprising mobile batteries and chargers that can be transported to a location near the container handling equipment. The mobile batteries and chargers are configured for energy storage and capable of being recharged at one or more charging stations. Multiple mobile batteries and chargers can be included in the system and/or methods, and one or more or each mobile battery and charger can be configured to recharge one or more or several pieces of container handling equipment before the mobile battery and charger travels to the charging station to recharge. Included are systems for managing shipping equipment in a container terminal comprising one or more mobile battery and charger configured to deliver at least about 100 KW of power to any equipment configured for loading, unloading, and/or moving shipping containers, such as a shipping container crane.

A position alignment method comprises recognizing the state of the plurality of GAs through wireless communication with an SECC for controlling the plurality of GAs, receiving information about one or more valid GAs among the plurality of GAs from the SECC, selecting a target GA on the basis of the information about the one or more valid GAs, and establishing a wireless communication link; making a request to the SECC for performing a position alignment approval and authentication process, performing position alignment with the target GA using an LF signal if the authentication is successful, transmitting a dataset to the SECC using the LF signal after the position alignment with the target GA, and pairing with the target GA based on the dataset.

A vehicle battery pack may include: a first battery portion including a first battery module; a second battery portion including a second battery module; a connector supplying power from at least one of the first battery portion and the second battery portion when no battery abnormality has occurred to a thermal management control unit; a bypass path unit providing a path to bypass any one of the first battery portion and the second battery portion when a battery abnormality has occurred; and a switching unit connecting the bypass path unit to the first or second battery portion when the battery abnormality has occurred, in a power supply circuit including the first battery portion and the second battery portion, connected to the connector, to supply power to the thermal management control unit.

The charging system comprises: two chargers (2a, 2b) which deliver instantaneous electrical energy for charging an electric vehicle, with different electrical charging characteristics, two electrical lines (16a, 16b), each connecting one of the two chargers (2a, 2b) to a plurality of charging points (4), each serving a charging space (5), a switching system (6) which is associated with each charging point (4) and which connects or does not connect an electric vehicle to the first or the second charger (2), such that each charger (2a, 2b) is connected at most to one charging point (4), and a control system (8) which controls the switching system (6).