Control apparatus, control system, and storage battery control method

• US 9,735,591 B2
• Filed: 02/27/2013
• Issued: 08/15/2017
• Est. Priority Date: 02/27/2012
• Status: Active Grant

• Current Assignee: Kyocera Corporation
• Original Assignee: Kyocera Corporation
• Inventors: Sato, Hirotaka
• Primary Examiner(s): Rossoshek, Helen
• Application Number:
  US14/380,963
• Publication Number:
  US 20150171641A1
• Time in Patent Office: 1,630 Days
• CPC Class Codes: H01M 10/4207 for several batteries or cells simultaneously or sequentially
• CPC Class Codes: H01M 10/4257 Smart batteries, e.g. electronic circuits inside the housing of the cells or batteries
• CPC Class Codes: H01M 2010/4271 Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
• CPC Class Codes: H01M 2010/4278 Systems for data transfer from batteries, e.g. transfer of battery parameters to a controller, data transferred between battery controller and main controller
• CPC Class Codes: H02J 2310/64 The condition being economic, e.g. tariff based load management
• 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 7/00036 Charger exchanging data with battery
• CPC Class Codes: H02J 7/00041 in response to measured battery parameters, e.g. voltage, current or temperature profile
• CPC Class Codes: H02J 7/00047 with provisions for charging different types of batteries
• CPC Class Codes: H02J 7/0013 acting upon several batteries simultaneously or sequentially H02J7/1423 takes precedence
• CPC Class Codes: H02J 7/0025 Sequential battery discharge in systems with a plurality of batteries
• CPC Class Codes: H02J 7/0063 with circuits adapted for supplying loads from the battery
• CPC Class Codes: Y02E 60/10 Energy storage using batteries
• CPC Class Codes: Y04S 20/222 Demand response systems, e.g. load shedding, peak shaving
• CPC Class Codes: Y04S 50/10 Energy trading, including energy flowing from end-user application to grid

Abstract

A HEMS 100 that controls a plurality of storage batteries 10 provided in a power consumer acquires information on type and/or deterioration level of each of the plurality of storage batteries. The HEMS 100 controls charge and discharge of each of the plurality of storage batteries 10 on the basis of the information on the type and/or the deterioration level of each of the plurality of storage batteries 10.

Claims

1. A control apparatus configured to control a plurality of storage batteries provided in a power consumer, comprising:

an acquisition unit configured to acquire information on type, indicative of whether or not each of the plurality of storage batteries is suitable for an auxiliary charge, from each of the plurality of storage batteries; and

a charge and discharge control unit configured to control charge and discharge of each of the plurality of storage batteries on the basis of the information on the type of each of the plurality of storage batteries,

wherein the charge and discharge control unit is configured to associate a first storage battery that is suitable for an auxiliary charge with a distributed power source and schedule a compensating mode as an operation mode applied to the first storage battery, when the plurality of storage batteries include the first storage battery and a plurality of power source include the distributed power source, a performance of the first storage battery being not easily deteriorated due to a memory effect,

wherein the charge and discharge control unit is configured to, in the compensating mode, control so as to charge the first storage battery by power provided from the distributed power source when power generated by the distributed power source exceeds a consumption power amount of a load apparatus, and control so as to discharge the first storage battery when the power generated by the distributed power source is insufficient to the consumption power amount of the load apparatus,

wherein the charge and discharge control unit is configured to associate a second storage battery that is not suitable for the auxiliary charge with a grid power source and schedule a discharging mode as an operation mode applied to the second storage battery, when the plurality of storage batteries include the second storage battery and the plurality of power source include the grid power source, a performance of the second storage battery being easily deteriorated due to a memory effect, and

wherein the charge and discharge control unit is configured to, in the discharging mode, control so as not to charge the second storage battery by the power provided from the distributed power source even when the power generated by the distributed power source exceeds the consumption power amount of the load apparatus, and control so as to discharge the second storage battery when the power generated by the distributed power source is insufficient to the consumption power amount of the load apparatus.

2. The control apparatus according to claim 1, wherein the acquisition unit is configured to communicate with a predetermined storage battery included in the plurality of storage batteries to acquire storage battery information at least including the information on the deterioration level of the predetermined storage battery.

3. The control apparatus according to claim 2, wherein the acquisition unit is configured to acquire the storage battery information from the predetermined storage battery when the predetermined storage battery is newly connected to the control apparatus.

4. The control apparatus according to claim 2, wherein the acquisition unit is configured to request information on the predetermined storage battery other than information included in the storage battery information in response to a reception of the storage battery information.

5. The control apparatus according to claim 2, wherein the acquisition unit is configured to acquire the storage battery information by a format compliant with ECHONET Lite.

6. The control apparatus according to claim 1, wherein the acquisition unit is configured to measure a charge and discharge characteristic of a predetermined storage battery included in the plurality of storage batteries to acquire the information on the type and/or the deterioration level of the predetermined storage battery.

7. The control apparatus according to claim 6, wherein the acquisition unit is configured to compare the charge and discharge characteristic of the predetermined storage battery with a charge and discharge pattern for each of the types and/or the deterioration levels to acquire the information on the type and/or the deterioration level of the predetermined storage battery.

8. The control apparatus according to claim 7, wherein the charge and discharge control unit is configured to determine the association between each of the plurality of storage batteries and each of the plurality of power sources depending on each time zone.

9. The control apparatus according to claim 1, wherein the charge and discharge control unit is configured to set a priority of charge and discharge for each of the plurality of storage batteries on the basis of the information on the deterioration level of each of the plurality of storage batteries.

10. The control apparatus according to claim 1, wherein the charge and discharge control unit is configured to more preferentially discharge the second storage battery than the first storage battery when the plurality of storage batteries include the first storage battery and the second storage battery and the compensating mode and the discharging mode are determined to be scheduled on the same time zone.

11. A control system that controls a plurality of storage batteries provided in a power consumer, comprising a control apparatus according to claim 1.

12. A storage battery control method applied to a control system that controls a plurality of storage batteries provided in a power consumer, comprising steps of:

acquiring information on type, indicative of whether or not each of the plurality of storage batteries is suitable for an auxiliary charge, from each of the plurality of storage batteries;

controlling charge and discharge of each of the plurality of storage batteries on the basis of the information on the type of each of the plurality of storage batteries;

associating a first storage battery that is suitable for an auxiliary charge with a distributed power source and scheduling a compensating mode as an operation mode applied to the first storage battery, when the plurality of storage batteries include the first storage battery and a plurality of power source includes the distributed power source, a performance of the first storage battery being not easily deteriorated due to a memory effect;

in the compensating mode, controlling so as to charge the first storage battery by power provided from the distributed power source when power generated by the distributed power source exceeds a consumption power amount of a load apparatus, and controlling so as to discharge the first storage battery when the power generated by the distributed power source is insufficient to the consumption power amount of the load apparatus;

associating a second storage battery that is not suitable for the auxiliary charge with a grid power source and scheduling a discharging mode as an operation mode applied to the second storage battery, when the plurality of storage batteries include the second storage battery and the plurality of power source includes the grid power source, a performance of the second storage battery being easily deteriorated due to a memory effect; and

,

in the discharging mode, controlling so as not to charge the second storage battery by the power provided from the distributed power source even when the power generated by the distributed power source exceeds the consumption power amount of the load apparatus, and controlling so as to discharge the second storage battery when the power generated by the distributed power source is insufficient to the consumption power amount of the load apparatus.