Battery information output equipment for power supply and demand leveling system

• US 9,469,203 B2
• Filed: 07/29/2011
• Issued: 10/18/2016
• Est. Priority Date: 08/05/2010
• Status: Active Grant

• Current Assignee: Mitsubishi Denki Kabushiki Kaisha (Mitsubishi Electric Corporation), Mitsubishi Jidosha Kogyo Kabushiki Kaisha
• Original Assignee: Mitsubishi Corporation, Mitsubishi Denki Kabushiki Kaisha (Mitsubishi Electric Corporation), Mitsubishi Jidosha Kogyo Kabushiki Kaisha, Mitsubishi Research Institute Incorporated
• Inventors: Momose, Nobuo, Kataniwa, Makoto, Nakai, Yasuhiro, Kumazawa, Hiroyuki, Munaka, Tatsuji, Shimura, Yuichiro, Tanaka, Hiroshi, Irie, Hiroshi, Maejima, Hitoshi
• Primary Examiner(s): Tran, Thienvu
• Assistant Examiner(s): Baxter, Brian K
• Application Number:
  US13/814,157
• Publication Number:
  US 20130162025A1
• Time in Patent Office: 1,908 Days
• Field of Search: 307/9.1
• US Class Current: 1/1
• CPC Class Codes: B60L 53/00 Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
• CPC Class Codes: B60L 53/51 Photovoltaic means
• CPC Class Codes: B60L 53/52 Wind-driven generators
• 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 58/13 Maintaining the SoC within a determined range
• CPC Class Codes: H01M 10/44 Methods for charging or discharging circuits for charging H02J7/00
• CPC Class Codes: H01M 10/465 with solar battery as charging system
• CPC Class Codes: H02J 13/00018 using phone lines
• 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: Y02B 90/20 Smart grids as enabling technology in buildings sector smart grids supporting the management or operation of end-user stationary applications in general, or like technologies with no associated climate change mitigation effect Y04S20/00
• 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 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 40/124 : using wired telecommunication networks or data transmission busses

Abstract

Battery information output equipment allows a driver of an electric vehicle 10 of an electricity consumer 2, now parked, to input what battery capacity is required at two or more points of time on or before the time at which the electric vehicle is scheduled to come into use, considering an operation schedule for the vehicle, and transmits the usable capacity at each point of the times, i.e., maximum capacity minus capacity required at each point of the times, to a power supply/demand management center 3, so that charge and discharge of a battery 17 is controlled by a charge/discharge command from the power supply/demand management center 3 such that use of battery capacity for power supply and demand leveling is kept within the usable capacity at any point of the times.

Claims

1. Battery information output equipment for a power supply and demand leveling system in which electric power is supplied from an electricity utility to electricity consumers via distribution lines, and when an electric vehicle of an electricity consumer is parked and connected to the distribution lines, a charge/discharge command relevant to a batter of the electric vehicle is transmitted from a power supply/demand management device to the electricity consumer on the basis of power supply/demand information transmitted from the electricity utility to control charge and discharge of the battery of the electric vehicle for power supply and demand leveling by using a charge/discharge controller, the battery information output equipment comprising:

an input device for inputting plural times after the electric vehicle is connected to the distribution lines and a usable capacity of the battery at each point of the times for power supply and demand leveling by controlling charge and discharge of the battery, by specifying two or more points in a coordinate system consisting of an axis of time and an axis of the usable capacity in an entire capacity of the battery using as an index a required capacity that is a battery capacity to be secured, considering the electricity consumer'"'"'s operation schedule for the electric vehicle, and

an output device for transmitting the usable capacity at each point of the times inputted with the input device to the power supply/demand management device, wherein

the input device and the output device each being provided to at least either the electric vehicle or a place of the electricity consumer where the electric vehicle is parked.

2. The battery information output equipment according to claim 1, wherein

the output device takes in an accumulated power limiting value to limit accumulated power supplied to and from the battery and transmits the accumulated power limiting value to the power supply/demand management device with the usable capacity at each point of the times.

3. The battery information output equipment according to claim 2, further comprising:

a limiting-value correction device for correcting the accumulated power limiting value depending on duration of use of the battery, wherein

the output device transmits the accumulated power limiting value corrected by the limiting-value correction device.

4. The battery information output equipment according to claim 2, further comprising:

a limiting-value correction device for correcting the accumulated power limiting value depending on temperature of the battery, wherein

the output device transmits the accumulated power limiting value corrected by the limiting-value correction device.

5. The battery information output equipment according to claim 1, wherein

the output device takes in a maximum rate limiting value to limit maximum rate of power supplied to and from the battery and transmits the maximum rate limiting value to the power supply/demand management device with the usable capacity at each point of the times.

6. The battery information output equipment according to claim 5, further comprising:

a limiting-value correction device for correcting the maximum rate limiting value depending on duration of use of the battery, wherein

the output device transmits the maximum rate limiting value corrected by the limiting-value correction device.

7. The battery information output equipment according to claim 5, further comprising:

a limiting-value correction device for correcting the maximum rate limiting value depending on temperature of the battery, wherein

the output device transmits the maximum rate limiting value corrected by the limiting-value correction device.