POWER SUPPLY SYSTEM FOR HOUSE

• US 20140379155A1
• Filed: 09/12/2014
• Published: 12/25/2014
• Est. Priority Date: 04/11/2012
• Status: Active Grant

• Current Assignee: IHI Corporation
• Original Assignee: IHI Corporation
• Inventors: NIIZUMA, Motonao
• Granted Patent: US 9,866,032 B2
• Time in Patent Office: Days
• US Class Current: 700/291
• CPC Class Codes: B60L 2210/30 AC to DC converters
• CPC Class Codes: B60L 3/0069 relating to the isolation, e.g. ground fault or leak current
• CPC Class Codes: B60L 53/124 Detection or removal of foreign bodies
• CPC Class Codes: B60L 53/36 by positioning the vehicle
• CPC Class Codes: B60L 53/50 Charging stations characterised by energy-storage or power-generation means
• CPC Class Codes: B60L 53/57 Charging stations without connection to power networks
• 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 53/665 Methods related to measuring, billing or payment
• 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: G05B 15/02 electric
• CPC Class Codes: H02J 2310/12 The local stationary network supplying a household or a building
• CPC Class Codes: H02J 2310/48 for electric vehicles [EV] or hybrid vehicles [HEV]
• CPC Class Codes: H02J 3/00 Circuit arrangements for ac mains or ac distribution networks
• CPC Class Codes: H02J 3/003 Load forecast, e.g. methods or systems for forecasting future load demand
• CPC Class Codes: H02J 50/10 using inductive coupling
• CPC Class Codes: H02J 50/12 of the resonant type
• CPC Class Codes: H02J 50/80 involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
• CPC Class Codes: H02J 7/00034 Charger exchanging data with an electronic device, i.e. telephone, whose internal battery is under charge
• CPC Class Codes: Y02E 60/00 : Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
• 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 power supply system for a house is constructed such that electrical power that will need to be supplied from an electric vehicle to a house in a delay time taking a power transmission delay into account is predicted, a prediction data of the predicted electrical power is communicated to a power supply control device via a house communication device and a vehicle communication device, and electrical power that corresponds to the prediction data is supplied to a power-supplying coil by the power supply control device.

Claims

1. A power supply system for a house that supplies electrical power from an electric vehicle to the house, wherein

the electric vehicle comprises:

a rechargeable battery;

a power-supplying coil;

a power-supplying circuit that, using the rechargeable battery as a power source, drives the power-supplying coil in a voltage-current waveform that is suitable for supplying electrical power wirelessly;

a vehicle communication device; and

a power supply control device that controls the power-supplying circuit,

the house comprises;

a power-receiving coil;

a power-receiving circuit that receives electrical power from the power-receiving coil into the house;

a house communication device that is configured to communicate with the vehicle communication device; and

a power prediction device that predicts electrical power required in the house,

the power-supplying coil and the power-receiving coil are constructed such that they form an electromagnetic coupling circuit when they are placed a preset distance apart from each other,

the power prediction device is constructed such that it predicts electrical power that will need to be supplied from the electric vehicle to the house in a delay time taking a power transmission delay into account, and communicates a prediction data of the predicted electrical power to the power supply control device via the house communication device and the vehicle communication device, and

the power supply control device is constructed such that it supplies electrical power that corresponds to the power prediction data to the power-supplying coil.

2. The power supply system for a house according to claim 1, wherein the delay time is a time from when the prediction data is output by the power prediction device to when electrical power that corresponds to the prediction data is supplied to the house.

3. The power supply system for a house according to claim 2, wherein the power supply control device of the electric vehicle stores delay time that has been determined in advance either by actual measurement or by calculation, and the vehicle communication device is constructed such that it communicates the stored delay time to the house communication device.

4. The power supply system for a house according to claim 2, wherein

the power-receiving circuit has a received power measuring device that measures received electrical power, and

the power prediction device is constructed such that it measures an actual delay time.