A computer-based method is provided of forecasting total electric vehicle state of charge and total electric vehicle energy storage capacity in a parking area having parking bays with respective electrical vehicle charging and discharging facilities. Electric vehicles occupying the bays can provide temporary energy storage capacity to an energy grid. The forecasting method includes: forecasting future occupation of the bays by electric vehicles based on expected arrival times and expected stay durations; obtaining expected charge and discharge capabilities of the vehicles; forecasting a total state of charge and total energy storage capacity in the parking area; recording actual arrivals and departures; and adjusting the forecast of future occupation and the forecast of total state of charge and total energy storage capacity in the parking area.

A computer-based method is provided of forecasting total electric vehicle state of charge and total electric vehicle energy storage capacity in a parking area having parking bays with respective electrical vehicle charging and discharging facilities. Electric vehicles occupying the bays can provide temporary energy storage capacity to an energy grid. The forecasting method includes: forecasting future occupation of the bays by electric vehicles based on expected arrival times and expected stay durations; obtaining expected charge and discharge capabilities of the vehicles; forecasting a total state of charge and total energy storage capacity in the parking area; recording actual arrivals and departures; and adjusting the forecast of future occupation and the forecast of total state of charge and total energy storage capacity in the parking area.

High power bidirectional charging systems with a split battery architecture are disclosed. The bidirectional charging systems can include a bidirectional charger and an integrated battery. The bidirectional charger is bidirectional, providing vehicle-to-grid (V2G) energy transfer capability from an electrical grid to an electric vehicle (EV), as well as electrical energy transfer capability from the integrated battery to the power grid and from EV battery to the electrical grid. The integrated battery is split into two sections. A first battery section is a lower voltage battery, which can feed the output direct current (DC) directly without a converter. A second battery section is a higher voltage battery. The output power provided by the charger can exceed voltage limits of the individual electronic components by adding the output of the first integrated battery section with an output of the second integrated battery section.

High power bidirectional charging systems with a split battery architecture are disclosed. The bidirectional charging systems can include a bidirectional charger and an integrated battery. The bidirectional charger is bidirectional, providing vehicle-to-grid (V2G) energy transfer capability from an electrical grid to an electric vehicle (EV), as well as electrical energy transfer capability from the integrated battery to the power grid and from EV battery to the electrical grid. The integrated battery is split into two sections. A first battery section is a lower voltage battery, which can feed the output direct current (DC) directly without a converter. A second battery section is a higher voltage battery. The output power provided by the charger can exceed voltage limits of the individual electronic components by adding the output of the first integrated battery section with an output of the second integrated battery section.

A power supply system with a large number of battery modules, wherein each battery module has a first electrical connection and a second electrical connection, via which the battery modules are connected in series in an interconnection branch of the power supply system. Each battery module also has an accumulator which can be connected via a bridge circuit of the battery module to the first electrical connection and the second electrical connection, and to a charging path via which the power supply system can be charged, and to a discharging path via which the power supply system can deliver electrical power to a connected consumer. The power supply system has a switching component to which the charging path, the discharging path and the interconnection branch are connected, and wherein the switching component can connect the charging path and/or the discharging path electrically conductively to the interconnection branch.

An information processing system according to one embodiment includes: a provision unit configured to transmit to a user terminal an incentive list indicating one or more incentives provided by one or more facilities; a receiving unit configured to receive from the user terminal an incentive selected from the incentive list by a user of the user terminal; and a request unit configured to transmit a reservation request for reserving a power transmitting device of a corresponding facility which is the facility corresponding to the selected incentive for a vehicle corresponding to the user, to the corresponding facility.

Compact light-weight on-board three-port power electronic system built in various configurations of triple-active-bridge-derived topologies, including modular implementations, with control strategies capable of bi-directional power transfer among the three ports of the power electronic system, including simultaneous charging of a high voltage (HV) battery and a low voltage (LV) battery from a single phase power grid or a three-phase power grid with minimized reactive power and active circulating current, with ensured soft-switching for MOSFET devices, and with enhanced synchronous rectification and reduced power losses.

Compact light-weight on-board three-port power electronic system built in various configurations of triple-active-bridge-derived topologies, including modular implementations, with control strategies capable of bi-directional power transfer among the three ports of the power electronic system, including simultaneous charging of a high voltage (HV) battery and a low voltage (LV) battery from a single phase power grid or a three-phase power grid with minimized reactive power and active circulating current, with ensured soft-switching for MOSFET devices, and with enhanced synchronous rectification and reduced power losses.

A server performs a process including: when the server receives a second DR execution instruction, the step of obtaining a vehicle list; the step of turning off a determination flag of each candidate vehicle; the step of obtaining a number of times of turning on and off a relay at a time of DR for one of candidate vehicles each showing a determination flag in an OFF state; when the number of times of turning on and off the relay is greater than a threshold value, the step of turning on an exclusion flag; the step of performing a notification process; when a determining process ends, the step of performing a process of allocating a DR amount; and the step of transmitting a DR signal.

A server performs a process including: when the server receives a second DR execution instruction, the step of obtaining a vehicle list; the step of turning off a determination flag of each candidate vehicle; the step of obtaining a number of times of turning on and off a relay at a time of DR for one of candidate vehicles each showing a determination flag in an OFF state; when the number of times of turning on and off the relay is greater than a threshold value, the step of turning on an exclusion flag; the step of performing a notification process; when a determining process ends, the step of performing a process of allocating a DR amount; and the step of transmitting a DR signal.