RAPID CHARGING POWER SUPPLY SYSTEM

• US 20140347017A1
• Filed: 12/06/2012
• Published: 11/27/2014
• Est. Priority Date: 12/08/2011
• Status: Active Grant

• Current Assignee: Institute for Energy Application Technologies Co., Ltd.
• Original Assignee: Institute for Energy Application Technologies Co., Ltd.
• Inventors: Sugano, Tomio
• Granted Patent: US 9,555,715 B2
• Time in Patent Office: Days
• US Class Current: 320/137
• CPC Class Codes: B60L 1/003 to auxiliary motors, e.g. for pumps, compressors
• CPC Class Codes: B60L 2200/26 Rail vehicles
• CPC Class Codes: B60L 2210/10 DC to DC converters
• CPC Class Codes: B60L 2210/30 AC to DC converters
• CPC Class Codes: B60L 2210/40 DC to AC converters
• CPC Class Codes: B60L 2240/34 Cabin temperature
• CPC Class Codes: B60L 50/40 using propulsion power supplied by capacitors
• CPC Class Codes: B60L 50/50 using propulsion power supplied by batteries or fuel cells
• CPC Class Codes: B60L 50/52 characterised by DC-motors
• CPC Class Codes: B60L 50/60 using power supplied by batteries in combination with fuel cells B60L50/75
• CPC Class Codes: B60L 53/11 DC charging controlled by the charging station, e.g. mode 4
• CPC Class Codes: B60L 53/122 Circuits or methods for driving the primary coil, e.g. supplying electric power to the coil
• CPC Class Codes: B60L 53/126 Methods for pairing a vehicle and a charging station, e.g. establishing a one-to-one relation between a wireless power transmitter and a wireless power receiver
• CPC Class Codes: B60L 53/16 Connectors, e.g. plugs or sockets, specially adapted for charging electric vehicles
• CPC Class Codes: B60L 53/30 Constructional details of charging stations
• CPC Class Codes: B60L 53/305 Communication interfaces
• CPC Class Codes: B60L 53/31 Charging columns specially adapted for electric vehicles
• CPC Class Codes: B60L 53/36 by positioning the vehicle
• CPC Class Codes: B60L 53/63 in response to network capacity
• CPC Class Codes: B60L 53/64 Optimising energy costs, e.g. responding to electricity rates
• CPC Class Codes: B60L 53/65 : involving identification of vehicles or their battery types
• CPC Class Codes: B60L 55/00 : Arrangements for supplying energy stored within a vehicle to a power network, i.e. vehicle-to-grid [V2G] arrangements
• CPC Class Codes: B60L 58/22 : Balancing the charge of battery modules
• CPC Class Codes: H01M 10/44 : Methods for charging or discharging circuits for charging H02J7/00
• CPC Class Codes: H02J 2310/42 : for ships or vessels
• CPC Class Codes: H02J 2310/48 : for electric vehicles [EV] or hybrid vehicles [HEV]
• CPC Class Codes: H02J 3/322 : the battery being on-board an electric or hybrid vehicle, e.g. vehicle to grid arrangements [V2G], power aggregation, use of the battery for network load balancing, coordinated or cooperative battery charging
• CPC Class Codes: H02J 50/12 : of the resonant type
• CPC Class Codes: H02J 7/0014 : Circuits for equalisation of charge between batteries
• CPC Class Codes: H02J 7/0042 : characterised by the mechanical construction
• CPC Class Codes: H02J 7/02 : for charging batteries from ac mains by converters
• CPC Class Codes: H02J 7/342 : The other DC source being a battery actively interacting with the first one, i.e. battery to battery charging with circuits for polarity protection H02J7/0034
• CPC Class Codes: Y02E 60/00 : Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
• CPC Class Codes: Y02E 60/10 : Energy storage using batteries
• CPC Class Codes: Y02T 10/70 : Energy storage systems for electromobility, e.g. batteries
• CPC Class Codes: Y02T 10/7072 : Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
• CPC Class Codes: Y02T 10/72 : Electric energy management in electromobility
• CPC Class Codes: Y02T 90/12 : Electric charging stations
• CPC Class Codes: Y02T 90/14 : Plug-in electric vehicles
• CPC Class Codes: Y02T 90/16 : Information or communication technologies improving the operation of electric vehicles
• CPC Class Codes: Y02T 90/167 : Systems integrating technologies related to power network operation and communication or information technologies for supporting the interoperability of electric or hybrid vehicles, i.e. smartgrids as interface for battery charging of electric vehicles [EV] or hybrid vehicles [HEV]
• CPC Class Codes: Y04S 10/126 : the energy generation units being or involving electric vehicles [EV] or hybrid vehicles [HEV], i.e. power aggregation of EV or HEV, vehicle to grid arrangements [V2G]
• CPC Class Codes: Y04S 30/14 : Details associated with the interoperability, e.g. vehicle recognition, authentication, identification or billing

Abstract

A rapid charging power supply system comprises: a stationary rapid charger (11) for controlling power supplied from a power supply (1) to be a DC power optimum for rapidly charging an on-vehicle electric storage means (85c) equipped in a second electric moving body (53); a power supply switching means (11m) for switching and supplying the DC power from the stationary rapid charger (11) to either a first charging circuit (20A) for supplying the DC power to a first electric moving vehicle (50) or a second charging circuit (20B) for supplying the DC power to the second electric moving body (53); an stationary electric storage means (15) capable of storing DC power charged by the DC power supplied to the side of the first charging circuit (20A) from the stationary rapid charger (11) via the power supply switching means (11m) and used for being directly supplied to at least the first electric moving body (50); and a power feeding control means (12) for stopping power supply to the stationary electric storage means (15) from the stationary rapid charger (11) when charging an on-vehicle electric storage means (85) of the first electric moving body (50) by the DC power output from the stationary electric storage means (15).

Claims

1. A rapid charging power supply system capable of supplying electric power for rapid charging to each of a first electric moving body equipped with a rapid-charging control means, and a second electric moving body which is not equipped with the rapid-charging control means, wherein the rapid charging power supply system comprises:

a stationary rapid charger for controlling electric power supplied from a power source to be DC power having a voltage and a current optimum for rapid charging of an on-vehicle electric storage means equipped in the second electric moving body;

a power supply switching means for supplying the DC power from the stationary rapid charger through switching of either a first charging circuit for supplying the DC power to the first electric moving body or a second charging circuit for supplying the DC power to the second electric moving body;

a stationary electric storage means connectable with the stationary rapid charger side through the power supply switching means, the stationary electric storage means being charged with the DC power supplied from the stationary rapid charger to the first charging circuit side through the power supply switching means, and being capable of at least storing the DC power to be directly sent to the first electric moving body, except for during the charging of the on-vehicle electric storage means of the second electric moving body; and

a power feeding control means provided between the power supply switching means and the stationary electric storage means, for discontinuing power feeding from the stationary rapid charger to the stationary electric storage means during charging of an on-vehicle electric storage means of the first electric moving body with the DC power output from the stationary electric storage means.

2. The rapid charging power supply system according to claim 1, wherein a part of the electric power stored in the stationary electric storage means is usable for rapid charging of the on-vehicle electric storage means of the second electric moving body through the stationary rapid charger.

3. The rapid charging power supply system according to claim 1, wherein the stationary electric storage means is connected with an inverter for converting DC power to AC power and supplying the converted AC power to a commercial electric power system.

4. The rapid charging power supply system according to claim 1, wherein the stationary rapid charger is capable of supplying DC power in which neither a voltage nor a current is controlled for rapid charging, to the first electric moving body connected to the first charging circuit.

5. The rapid charging power supply system according to claim 1, wherein the first electric moving body has a power converter for converting AC power from a commercial AC power supply or a non-contact power feeding means connected to the stationary electric storage means side into DC power, and the rapid-charging control means is connected with an output side of the power converter.

6. The rapid charging power supply system according to claim 1, wherein the electric power input to the stationary rapid charger is electric power generated by utilizing renewable energy.