Power connection control system and method

• US 10,432,019 B2
• Filed: 01/13/2017
• Issued: 10/01/2019
• Est. Priority Date: 09/26/2011
• Status: Active Grant

• Current Assignee: NEC Corporation
• Original Assignee: NEC Corporation
• Inventors: Motobayashi, Toshihiko
• Primary Examiner(s): Everett, Christopher E.
• Application Number:
  US15/405,439
• Publication Number:
  US 20170133877A1
• Time in Patent Office: 991 Days
• CPC Class Codes: G05B 15/02 electric
• CPC Class Codes: H02J 3/0073 for providing alternative feeding paths between load and source when the main path fails, e.g. transformers, busbars
• CPC Class Codes: H02J 9/06 with automatic change-over , e.g. UPS systems
• CPC Class Codes: H02J 9/061 for DC powered loads
• 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 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: Y04S 20/00 Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
• CPC Class Codes: Y04S 20/12 Energy storage units, uninterruptible power supply [UPS] systems or standby or emergency generators, e.g. in the last power distribution stages
• CPC Class Codes: Y04S 20/242 Home appliances
• CPC Class Codes: Y04S 20/248 UPS systems or standby or emergency generators

Abstract

For each of consumers, a connection control apparatus is provided that includes an opening/closing device capable of connecting or disconnecting an electric power system and a consumer, that, when a power outage occurs in the electric power system, disconnects the electric power system and the consumer from each other by the opening/closing device at a command from an outage management apparatus or the like, and that connects the electric power system and the consumer to each other by the opening/closing device upon receiving a command from the outage management apparatus or the like at the time of restoration from the power outage. A power supply control apparatus supplies electric power from energy provision equipment to electrical appliances during a power outage in the electric power system.

Claims

1. An outage management apparatus comprising:

a processing section that schedules time to establish linkage for every unit of energy provision equipment to an electric power system based on at least either a linkage operation time, which is received from the unit of energy provision equipment, representing a time period from connecting the unit of energy provision equipment to the electric power system to enable a linkage operation of the unit of energy provision equipment with the electric power system or a predicted amount of reverse power flow, which is received from the unit of energy provision equipment, representing an amount of electric power of a reverse power flow from the unit of energy provision equipment to the electric power system, at a time of restoration from a power outage; and

a communication section that transmits a linkage command, for linking the unit of energy provision equipment to the electric power system, to each unit of energy provision equipment according to the scheduled time to establish linkage, wherein

said processing section schedules a time to establish linkage for every unit of energy provision equipment so that an amount of adjustment of electric power generated by an adjusting power source of the electric power system is minimized.

2. The outage management apparatus according to claim 1, wherein

said communication section, when at least either the linkage operation time or the predicted amount of reverse power flow, that are transmitted from the unit of energy provision equipment in response to the restoration of power from the power outage, is received, transmits the linkage command, which is a command to link the unit of energy provision equipment to the electric power system, to each unit of energy provision equipment.

3. The outage management apparatus according to claim 1, wherein

said communication section transmits a parallel-off command which is a command to disconnect the unit of energy provision equipment from the electric power system based on at least either outage section information indicating a distribution section where the power outage is occurring or system consumer accommodation information indicating consumers accommodated in the electric power system.