POWER CONVERTER

• US 20140320083A1
• Filed: 11/19/2012
• Published: 10/30/2014
• Est. Priority Date: 11/21/2011
• Status: Abandoned Application

• Current Assignee: Panasonic Intellectual Property Management Co., Ltd. (Panasonic Holdings Corporation)
• Original Assignee: Panasonic Corporation (Panasonic Holdings Corporation)
• Inventors: Masuda, Takuya, Kobayashi, Susumu
• Application Number:
  US14/359,260
• Publication Number:
  US 20140320083A1
• Time in Patent Office: Days
• US Class Current: 320/109
• CPC Class Codes: B60L 2210/30 AC to DC converters
• CPC Class Codes: B60L 53/14 Conductive energy transfer
• CPC Class Codes: B60L 53/20 characterised by converters located in the vehicle
• CPC Class Codes: B60L 53/22 Constructional details or arrangements of charging converters specially adapted for charging electric vehicles
• CPC Class Codes: B60L 53/63 in response to network capacity
• 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 58/12 responding to state of charge [SoC]
• CPC Class Codes: H01M 10/44 Methods for charging or discharging circuits for charging H02J7/00
• CPC Class Codes: H01M 10/48 Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte constructional details of current conducting connections for detecting conditions inside cells or batteries, e.g. details of voltage sensing terminals, H01M50/569
• CPC Class Codes: H01M 2220/20 Batteries in motive systems, e.g. vehicle, ship, plane
• 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 7/0013 acting upon several batteries simultaneously or sequentially H02J7/1423 takes precedence
• 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 10/92 Energy efficient charging or discharging systems for batteries, ultracapacitors, supercapacitors or double-layer capacitors specially adapted for vehicles
• 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 30/12 : Remote or cooperative charging
• CPC Class Codes: Y04S 30/14 : Details associated with the interoperability, e.g. vehicle recognition, authentication, identification or billing

Abstract

A EV charging and discharging converter which can be connected with a house and an electric vehicle comprises: a plurality of power converting parts to which a plurality of electric vehicles can be connected; and EV side switch part provided to the plurality of power converting part on a connection side with the electric vehicle to enable one or a plurality of power converting parts to be connected with the electric vehicle, wherein The EV side switch part switches the number of the power converting parts connected to the electric vehicle in response to the change in power conversion efficiency, which responds to connection relation between the electric vehicle and the power converting part, and to charging/discharging power of the electric vehicle.

Claims

1. A power converter which can be connected with an arbitrary power charging and discharging unit and an electric vehicle, comprising:

a plurality of power converting parts to which a plurality of electric vehicles can be connected; and

a first switch part provided to the plurality of power converting part on a connection side with the electric vehicle to enable one or a plurality of power converting parts to be connected with the electric vehicle, wherein

the first switch part switches the number of the power converting parts connected to the electric vehicle in response to the change in power conversion efficiency, which responds to connection relation between the electric vehicle and the power converting part, and to charging/discharging power of the electric vehicle.

2. The power converter according to claim 1, wherein the number of the power converting part to be connected to a first electric vehicle is switched in response to the charging/discharging power of the first electric vehicle and a power converting part, which has not been connected to the first electric vehicle, is connected to a second electric vehicle.

3. The power converter according to claim 1 comprising a second switch part provided to the plurality of power converting parts on the connection side with the arbitrary charging and discharging unit, wherein

the second switch part switches to cause one or the plurality of power converting parts to be connected to one or a plurality of arbitrary charging and discharging units.

4. The power converter according to claim 1 comprising a third switch part provided between the plurality of power converting parts, wherein

the third switch part switches to cause a first power converting part to which one or a plurality of electric vehicles have been connected and a second power converting part to which one or a plurality of electric vehicles, which has not been connected to the first power converting part, have been connected to be connected.

5. The power converter according to claim 1 wherein the first switch part switches the number of the power converting parts to be connected to the electric vehicle depending on the remaining power level of a secondary cell used for the electric vehicle.

6. The power converter according to claim 1 wherein the first switch part switches the number of the power converting part to be connected to the electric vehicles in response to power supply capability of the arbitrary charging/discharging unit which responds to the amount of power the charging/discharging unit can supply to the electric vehicle or to power receiving capability of the arbitrary charging/discharging unit which responds to the amount of power the charging/discharging unit can receive from the electric vehicle.