POWER MANAGEMENT SYSTEM, POWER MANAGEMENT APPARATUS, AND POWER MANAGEMENT METHOD

• US 20120286723A1
• Filed: 01/04/2011
• Published: 11/15/2012
• Est. Priority Date: 01/25/2010
• Status: Active Grant

• Current Assignee: Sony Corporation (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: Ukita, Masakazu, Yoshida, Asami, Asano, Tomoyuki, Moriai, Shiho, Katagi, Masanobu, Kawamoto, Yohei, Matsuda, Seiichi, Tanaka, Yu
• Granted Patent: US 9,263,916 B2
• Time in Patent Office: Days
• US Class Current: 320/107
• CPC Class Codes: B60L 53/665 Methods related to measuring, billing or payment
• CPC Class Codes: G06Q 10/06312 Adjustment or analysis of established resource schedule, e.g. resource or task levelling, or dynamic rescheduling
• CPC Class Codes: G06Q 50/06 Energy or water supply
• CPC Class Codes: H02J 13/00001 characterised by the display of information or by user interaction, e.g. supervisory control and data acquisition systems [SCADA] or graphical user interfaces [GUI]
• CPC Class Codes: H02J 13/00004 characterised by the power network being locally controlled
• CPC Class Codes: H02J 13/00016 using a wired telecommunication network or a data transmission bus
• CPC Class Codes: H02J 13/00034 the elements or equipment being or involving an electric power substation
• CPC Class Codes: H02J 2310/14 The load or loads being home appliances
• CPC Class Codes: H02J 2310/66 one of the loads acting as master and the other or others acting as slaves
• CPC Class Codes: H02J 3/008 involving trading of energy or energy transmission rights
• CPC Class Codes: H02J 3/14 by switching loads on to, or off from, network, e.g. progressively balanced loading
• CPC Class Codes: H02J 3/32 using batteries with converting means
• CPC Class Codes: H02J 3/38 Arrangements for parallely feeding a single network by two or more generators, converters or transformers
• CPC Class Codes: H04L 63/08 for authentication of entities cryptographic mechanisms or cryptographic arrangements for entity authentication H04L9/32
• CPC Class Codes: Y02B 70/30 Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
• CPC Class Codes: Y02B 70/3225 Demand response systems, e.g. load shedding, peak shaving
• 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: 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 20/222 : Demand response systems, e.g. load shedding, peak shaving
• CPC Class Codes: Y04S 20/242 : Home appliances
• CPC Class Codes: Y04S 30/14 : Details associated with the interoperability, e.g. vehicle recognition, authentication, identification or billing
• CPC Class Codes: Y04S 40/124 : using wired telecommunication networks or data transmission busses
• CPC Class Codes: Y04S 50/10 : Energy trading, including energy flowing from end-user application to grid

Abstract

There is provided a power management system including a power receiving unit for receiving power from outside according to consumption of power, an electrical storage unit for storing the power received by the power receiving unit, and a discharge control unit for controlling a second power amount discharged from the electrical storage unit so that a first power amount provided by the power receiving unit attains a predetermined time-series pattern.

Claims

1. A power management system comprising:

a power receiving unit for receiving power from outside according to consumption of power;

an electrical storage unit for storing the power received by the power receiving unit; and

a discharge control unit for controlling a second power amount discharged from the electrical storage unit, so that a first power amount provided by the power receiving unit attains a predetermined time-series pattern.

2. The power management system according to claim 1, further comprising:

a pattern obtaining unit for obtaining, from a power management system of another user installed on a building nearby, a time-series pattern of a third power amount for which an electric supply is received from outside of the power management system of the another user,

wherein the discharge control unit controls the second power amount discharged from the electrical storage unit so that the first power amount attains the time-series pattern of the third power amount.

3. The power management system according to claim 2, further comprising:

an average pattern generation unit for generating an average time-series pattern by averaging time-series patterns of third power amounts obtained from power management systems of a plurality of other users by the pattern obtaining unit,

wherein the discharge control unit controls the second power amount discharged from the electrical storage unit so that the first power amount attains the average time-series pattern.

4. The power management system according to claim 3, wherein the electrical storage unit includes:

a battery having a long response time from when a discharge control is performed to when a discharge starts; and

a capacitor having a short response time from when a discharge control is performed to when a discharge starts, and

the discharge control unit discharges power from the capacitor when a short time change in the first power amount is corrected to the predetermined time-series pattern, and discharges power from the battery when a long time change in the first power amount is corrected to the predetermined time-series pattern.

5. The power management system according to claim 1, wherein the discharge control unit controls the second power amount discharged from the electrical storage unit so that the first power amount is maintained at a constant value.

6. The power management system according to claim 1, wherein the discharge control unit controls the second power amount discharged from the electrical storage unit so that the first power amount attains a random time-series pattern.

7. The power management system according to claim 2, wherein the power receiving unit includes:

a purchase power receiving unit for receiving power purchased from power provider; and

a private power receiving unit for receiving power generated by private power generation,

wherein the discharge control unit controls the second power amount discharged from the electrical storage unit so that a fourth power amount provided by the purchase power receiving unit attains the predetermined time-series pattern while the power provided by the private power receiving unit is consumed or stored.

8. A power management apparatus comprising:

a discharge control unit for controlling a second power amount provided from outside according to consumption of power by controlling a first power amount discharged from an electrical storage unit storing power,

wherein the discharge control unit controls the first power amount discharged from the electrical storage unit so that the second power amount attains a predetermined time-series pattern.

9. A power management method comprising the steps of:

receiving power from outside according to consumption of power;

storing the power received in the power receiving step; and

discharging the power stored in the electrical storage step so that a first power amount provided in the power receiving step attains a predetermined time-series pattern.