Control apparatus, control system, and storage battery control method

Patent metadata

Field	Value
Publication number	US-9735591-B2
Application number	US-201314380963-A
Country	US
Kind code	B2
Filing date	Feb 27, 2013
Priority date	Feb 27, 2012
Publication date	Aug 15, 2017
Grant date	Aug 15, 2017

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.

First claim

The invention claimed is:

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

Assignees

• Kyocera Corp

Inventors

• Sato Hirotaka

Classifications

• H02J2105/55

  according to an economic condition, e.g. tariff-based load management · CPC title

• H02J7/855

  with circuits adapted for supplying loads from the battery · CPC title

• H02J7/585

  Sequential battery discharge in systems with a plurality of batteries · CPC title

• H02J7/445

  in response to measured battery parameters, e.g. voltage, current or temperature profile · CPC title

• H02J7/50

  acting upon multiple batteries simultaneously or sequentially · CPC title