# US 12,000,897 B2 · Power management apparatus, power management system and power management method

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- Number: US 12,000,897 B2
- Document ID: US12000897B2
- Status: Granted
- Kind: B2
- Application number: 17/285,092
- Filed: 2019-10-11
- Published: 2021-11-11
- Granted: 2024-06-04
- Earliest claimed: 2018-10-15
- Assignees: KYOCERA Corporation
- Applicants: Kyocera Corporation
- Inventors: Mitsuhiro Kitaji
- Web page: https://patentgrep.com/patent/US12000897B2

## CPC

- G01R 31/374: with means for correcting the measurement for temperature or ageing
- G06Q 10/06315: {Needs-based resource requirements planning or analysis}
- G01R 31/392: Determining battery ageing or deterioration, e.g. state of health
- G06Q 50/06: Energy or water supply
- H02J 3/32: using batteries or super capacitors with converting means
- H02J 7/82: Control of state of charge [SOC]
- H02J 7/84: Control of state of health [SOH]
- G01R: MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES (indicating correct tuning of resonant circuits H03J3/12)
- G06Q: INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- H02J: ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY

## Abstract

A power management apparatus includes a manager configured to manage a utilization state of an electric storage apparatus and a controller configured to execute a balance control of the electric storage apparatus such that a power of one or more facilities becomes close to a target power. The controller is configured to compare a first effect and a second effect, the first effect being produced by operating the electric storage apparatus, the second effect being produced by not operating the electric storage apparatus, and not to execute the balance control in a case where the second effect is higher than the first effect, and to execute the balance control in a case where the first effect is higher than the second effect.

## Claims

### Claim 1

A power management apparatus comprising:
a manager configured to manage at least a utilization state of an electric storage apparatus; and
a controller configured to execute a balance control of the electric storage apparatus such that a power of one or more facilities becomes close to a target power,
wherein the controller is configured
to compare a first effect and a second effect, the first effect being produced by operating the electric storage apparatus, the second effect being produced by not operating the electric storage apparatus, and
not to execute the balance control in a case where the second effect is higher than the first effect, and to execute the balance control in a case where the first effect is higher than the second effect wherein the first effect is an incentive obtained by operating the electric storage apparatus, and the second effect is a deterioration cost avoided by not operating the electric storage apparatus.

### Claim 2 (depends on 1)

The power management apparatus according to claim 1, wherein the controller is configured to calculate the second effect based on a deterioration parameter associated with charge or discharge of the electric storage apparatus and an introduction cost for the electric storage apparatus.

### Claim 3 (depends on 1)

The power management apparatus according to claim 1, wherein the controller is configured to calculate the first effect based on a difference between the power of the one or more facilities and the target power, the difference being realized by operating the electric storage apparatus.

### Claim 4 (depends on 1)

The power management apparatus according to claim 1, wherein the target power is set based on a peak power that is permitted for the one or more facilities.

### Claim 5 (depends on 1)

The power management apparatus according to claim 1, wherein the target power is set based on at least one of a reduction request for a power of forward power flow to the one or more facilities or a reduction request for a power of reverse power flow from the one or more facilities.

### Claim 6 (depends on 1)

The power management apparatus according to claim 1, wherein the target power is set by a previously determined imbalance plan.

### Claim 7 (depends on 1)

The power management apparatus according to claim 1, wherein
the controller is configured to correct the first effect based on a rate of a discharge of the electric storage apparatus or a time of the discharge of the electric storage apparatus.

### Claim 8 (depends on 1)

The power management apparatus according to claim 1, wherein
the controller is configured to correct the deterioration cost based on at least one parameter of
a charge state of the electric storage apparatus,
a temperature of the electric storage apparatus,
a rate of the charge or discharge of the electric storage apparatus, or
a time of the charge or discharge of the electric storage apparatus.

### Claim 9 (depends on 1)

The power management apparatus according to claim 1, wherein the controller is configured to compare the first effect with the second effect by using price values of the first effect and the second effect.

### Claim 10 (depends on 2)

The power management apparatus according to claim 2, wherein the controller is configured to correct the deterioration parameter based on at least one parameter of a charge state of the electric storage apparatus, a temperature of the electric storage apparatus, a rate of the charge or discharge of the electric storage apparatus, or a time of the charge or discharge of the electric storage apparatus.

### Claim 11

A power management system comprising:
a manager configured to manage at least a utilization state of an electric storage apparatus; and
a controller configured to execute a balance control of the electric storage apparatus such that a power of one or more facilities becomes close to a target power, wherein
the controller is configured
to compare a first effect and a second effect, the first effect being produced by operating the electric storage apparatus, the second effect being produced by not operating the electric storage apparatus, and
not to execute the balance control in a case where the second effect is higher than the first effect, and to execute the balance control in a case where the first effect is higher than the second effect wherein the first effect is an incentive obtained by operating the electric storage apparatus, and the second effect is a deterioration cost avoided by not operating the electric storage apparatus.

### Claim 12

A power management method, comprising:
managing at least a utilization state of an electric storage apparatus;
comparing a first effect and a second effect, the first effect being produced by operating the electric storage apparatus, the second effect being produced by not operating the electric storage apparatus; and
not executing a balance control of the electric storage apparatus such that a power of one or more facilities becomes close to a target power, in a case where the second effect is higher than the first effect, and executing the balance control in a case where the first effect is higher than the second effect wherein the first effect is an incentive obtained by operating the electric storage apparatus, and the second effect is a deterioration cost avoided by not operating the electric storage apparatus.