Power management system, power management method, and upper power management apparatus

• US 10,115,169 B2
• Filed: 09/04/2012
• Issued: 10/30/2018
• Est. Priority Date: 09/26/2011
• Status: Active Grant

• Current Assignee: Kyocera Corporation
• Original Assignee: Kyocera Corporation
• Inventors: Joko, Shingo
• Primary Examiner(s): Everett, Christopher E.
• Application Number:
  US14/347,218
• Publication Number:
  US 20140236377A1
• Time in Patent Office: 2,247 Days
• CPC Class Codes: G06Q 50/06 Energy or water supply
• CPC Class Codes: H02J 13/00004 characterised by the power network being locally controlled
• CPC Class Codes: H02J 13/00007 using the power network as support for the transmission
• CPC Class Codes: H02J 2310/12 The local stationary network supplying a household or a building
• CPC Class Codes: H02J 3/14 by switching loads on to, or off from, network, e.g. progressively balanced loading
• CPC Class Codes: Y02B 70/3225 Demand response systems, e.g. load shedding, peak shaving
• CPC Class Codes: Y02E 60/00 Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
• CPC Class Codes: Y04S 10/50 Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
• CPC Class Codes: Y04S 20/222 Demand response systems, e.g. load shedding, peak shaving
• CPC Class Codes: Y04S 40/121 using the power network as support for the transmission

Abstract

A power management system comprises a plurality of HEMSs 10 and a CEMS 40. The CEMS 40 transmits, to a power company 60, configuration information of the plurality of consumers 70 managed by the CEMS 40. The power curtailment signal (DR; Demand Response) transmitted from the power company 60 to the CEMS 40 is determined in accordance with the configuration information. The upper power management apparatus transmits, to each HEMS 10, reduction information including an amount of power that should be reduced in each consumer 70 in response to a power curtailment signal transmitted from the power company 60 after transmitting the configuration information.

Claims

1. A power management system comprising

a power management apparatus configured to perform a process according to a power curtailment signal transmitted from a power company managing a power grid,

wherein the power management apparatus transmits, to the power company that transmits the power curtailment signal, configuration information of a consumer managed by the power management apparatus, and

wherein the configuration information comprises one or more of an amount of power that can be supplied by a storage battery provided in the consumer and a predicted amount of power that can be supplied by the storage battery,

wherein the power curtailment signal is determined by the power company in accordance with any one of the amount of power that can be supplied by the storage battery and the predicted amount of power that can be supplied by the storage battery,

wherein the power curtailment signal includes an amount of power that should be reduced from an amount of power currently consumed by a load connected to the power grid, wherein the amount of power in the power curtailment signal is based on the any one of the amount of power that can be supplied by the storage battery and the predicted amount of power that can be supplied by the storage battery.

2. The power management system according to claim 1, wherein the configuration information further comprises one or more of a number of residents of the consumer and a predicted amount of power consumed by one or more loads provided within the consumer.

3. The power management system according to claim 1, wherein the power management apparatus transmits the configuration information periodically.

4. The power management system according to claim 1, wherein the power management apparatus, in response to the power curtailment signal transmitted from the power company, replaces at least a part of the amount of power currently consumed by the load with an amount of power supplied by the storage battery.

5. A power management method applied to a power management system comprising a power management apparatus configured to perform a process according to a power curtailment signal transmitted from a power company managing a power grid, the method comprising:

a step of transmitting, from the power management apparatus to the power company that transmits the power curtailment signal, configuration information of a consumer managed by the power management apparatus, wherein the configuration information comprises one or more of an amount of power that can be supplied by a storage battery provided in the consumer and a predicted amount of power that can be supplied by the storage battery,

wherein the power curtailment signal is determined by the power company in accordance with any one of the amount of power that can be supplied by the storage battery and the predicted amount of power that can be supplied by the storage battery,

wherein the power curtailment signal includes an amount of power that should be reduced from an amount of power currently consumed by a load connected to the power grid wherein the amount of power in the power curtailment signal is based on the any one of the amount of power that can be supplied by the storage battery and the predicted amount of power that can be supplied by the storage battery.

6. The power management method according to claim 5, wherein the power curtailment signal is determined by the power company in accordance with the configuration information.

7. A power management apparatus configured to perform a process according to a power curtailment signal transmitted from a power company managing a power grid, the power management apparatus comprising:

a transmission unit that transmits, to the power company that transmits the power curtailment signal, configuration information of the consumer managed by the power management apparatus, wherein the configuration information comprises one or more of an amount of power that can be supplied by a storage battery provided in the consumer and a predicted amount of power that can be supplied by the storage battery,

wherein the power curtailment signal is determined by the power company in accordance with any one of the amount of power that can be supplied by the storage battery and the predicted amount of power that can be supplied by the storage battery,

wherein the power curtailment signal includes an amount of power that should be reduced from an amount of power currently consumed by a load connected to the power grid wherein the amount of power in the power curtailment signal is based on the any one of the amount of power that can be supplied by the storage battery and the predicted amount of power that can be supplied by the storage battery.

8. The power management apparatus according to claim 7, wherein the power curtailment signal is determined by the power company in accordance with the configuration information.