# US 8,788,110 B2 · Electric power visualization method and electric power visualization device

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- Number: US 8,788,110 B2
- Document ID: US8788110B2
- Status: Granted
- Kind: B2
- Application number: 13/416,506
- Filed: 2012-03-09
- Published: 2012-07-05
- Granted: 2014-07-22
- Earliest claimed: 2010-09-08
- Assignees: Sanyo Electric Co., Ltd.
- Applicants: Kenji Taima
- Inventors: Kenji Taima
- Web page: https://patentgrep.com/patent/US8788110B2

## CPC

- B60L 3/12: Recording operating variables {; Monitoring of operating variables}
- B60L 53/14: Conductive energy transfer
- B60L 53/305: {Communication interfaces}
- B60L 53/51: Photovoltaic means
- B60L 53/64: Optimising energy costs, e.g. responding to electricity rates
- B60L 55/00: Arrangements for supplying energy stored within a vehicle to a power network, i.e. vehicle-to-grid [V2G] arrangements
- H02J 3/14: by switching loads on to, or off from, the networks, e.g. progressively balanced loading
- H02J 7/35: with light sensitive cells
- B60L 2210/12: Buck converters
- B60L 2210/14: Boost converters
- B60L 2210/30: AC to DC converters
- B60L 2210/40: DC to AC converters
- B60L 2240/545: Temperature
- B60L 2240/547: Voltage
- B60L 2240/549: Current
- H02J 2105/12: supplying households or buildings
- H02J 2105/42: Home appliances
- 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
- Y02B 70/3225: Demand response systems, e.g. load shedding, peak shaving
- Y02E 60/00: Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T 10/70: Energy storage systems for electromobility, e.g. batteries
- Y02T 10/7072: Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
- Y02T 10/72: Electric energy management in electromobility
- Y02T 90/12: Electric charging stations
- Y02T 90/14: Plug-in electric vehicles
- Y02T 90/16: Information or communication technologies improving the operation of electric vehicles
- Y02T 90/167: Systems integrating technologies related to power network operation and communication or information technologies for supporting the interoperability of electric or hybrid vehicles, i.e. smartgrids as interface for battery charging of electric vehicles [EV] or hybrid vehicles [HEV]
- Y04S 10/126: the energy generation units being or involving electric vehicles [EV] or hybrid vehicles [HEV], i.e. power aggregation of EV or HEV, vehicle to grid arrangements [V2G]
- Y04S 20/222: Demand response systems, e.g. load shedding, peak shaving
- Y04S 20/242: Home appliances
- Y04S 30/12: Remote or cooperative charging
- Y04S 30/14: Details associated with the interoperability, e.g. vehicle recognition, authentication, identification or billing
- B60L: PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES (arrangements or mounting of electrical propulsion units or of plural diverse prime-movers for mutual or common propulsion in vehicles B60K1/00, B60K6/20; arrangements or mounting of electrical gearing in vehicles B60K17/12, B60K17/14; preventing wheel slip by reducing power in rail vehicles B61C15/08; dynamo-electric machines H02K; control or regulation of electric motors H02P); SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES (electric coupling devices combined with mechanical couplings of vehicles B60D1/64; electric heating for vehicles B60H1/00); ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL (control or regulation of electric motors H02P); MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- H02J: ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- Y02B: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y04S: SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS

## Abstract

A house uses solar light generated electric power and external commercial electric power and consumes the electric power with a household electronics load or the like. The house includes an electricity storage device and an electric power management device. The electric power management device further has a function to calculate transition of the load electric power, transition of the solar battery generated electric power, and transition of a leveled external commercial electric power during one day, classify the electric power by the power generation methods, apply a green index serving as a standardized index which is defined in advance to each power generation method to calculate an electric power green index, and display a result thereof on a display unit.

## Claims

### Claim 1

An electric power visualization method for visualizing content of electric power for input-side electric power or load-side electric power in an electric power management system which receives electric power generated by a plurality of power generation methods as the input-side electric power and supplies to a load as the load-side electric power based on the input-side electric power, the method comprising:
a display step in which the input-side electric power or the load-side electric power is classified into generated electric power of each of the power generation methods and is displayed with different display methods for each classification of the power generation method,
wherein the electric power management system sets electric power stored in an electricity storage device which is charged based on the input-side electric power as a storage battery electric power, and supplies to the load as the load-side electric power based on the input-side electric power and the storage battery electric power, and
wherein in the display step, the storage battery electric power is classified into the generated electric power of each power generation method based on data of one of best mixing models, and is displayed with different display forms for each classification of the power generation method.

### Claim 2 (depends on 1)

The electric power visualization method according to claim 1, wherein
the input-side electric power includes an external commercial electric power and a solar light generated electric power generated by a solar battery through a solar light power generation method.

### Claim 3 (depends on 2)

The electric power visualization method according to claim 2, wherein
the external commercial electric power includes generated electric power of a plurality of power generation methods.

### Claim 4 (depends on 3)

The electric power visualization method according to claim 3, wherein
in the display step, the storage battery electric power is displayed as the input-side electric power.

### Claim 5 (depends on 4)

The electric power visualization method according to claim 4, wherein
in the display step, for each of the plurality of power generation methods of the external commercial electric power and the solar light power generation method, a standardized index which is standardized and which indicates a degree of influence on the environment according to a predefined standard is used, with a higher standardized index being set for a power generation method with a lower degree of influence on the environment, at least one of the input-side electric power, the storage battery electric power, and the load-side electric power is classified into generated electric power of each power generation method, and a result acquired by multiplying the classified generated electric power by a corresponding standardized index is displayed.

### Claim 6 (depends on 5)

The electric power visualization method according to claim 5, further comprising:
a commercial electric power supply value acquisition step in which an electric power supply value of the external commercial electric power is acquired with elapse of time;
a solar light generated electric power supply value acquisition step in which an electric power supply value of the solar light generated electric power is acquired with the elapse of time;
a commercial electric power classification step in which the acquired electric power supply value of the external commercial electric power is classified into the generated electric power of each power generation method according to a predefined classification procedure; and
an output step in which, for the input-side electric power, each of the generated electric power of each of the plurality of power generation methods of the external commercial electric power and the generated electric power of the solar light power generation method corresponding to the electric power supply value of the solar light generated electric power is multiplied by the standardized index corresponding to each power generation method according to a difference in the power generation method, and a result value is output, wherein
in the display step, the result which is output with the elapse of time is displayed on a display unit so as to be classified for each power generation method.

### Claim 7

A device which visualizes content of electric power for input-side electric power or load-side electric power in an electric power management system which receives electric power generated by a plurality of power generation methods as the input-side electric power and supplies to a load as the load-side electric power based on the input-side electric power, the device comprising:
a display unit which classifies the input-side electric power or the load-side electric power into generated electric power of each of the power generation methods, and displays with different display methods for each classification of the power generation method,
wherein the electric power management system sets electric power stored in an electricity storage device which is charged based on the input-side electric power as a storage battery electric power, and supplies to the load as the load-side electric power based on the input-side electric power and the storage battery electric power, and
wherein the display unit classifies the storage battery electric power into the generated electric power of each power generation method based on data of one of best mixing models, and displays with different display forms for each classification of the power generation method.

### Claim 8 (depends on 7)

The electric power visualization device according to claim 7, wherein
the input-side electric power includes an external commercial electric power and a solar light generated electric power generated by a solar battery through a solar light power generation method.

### Claim 9 (depends on 8)

The electric power visualization device according to claim 8, wherein
the external commercial electric power includes generated electric power of a plurality of power generation methods.

### Claim 10 (depends on 9)

The electric power visualization device according to claim 9, wherein
the display unit displays the storage battery electric power as the input-side electric power.

### Claim 11 (depends on 10)

The electric power visualization device according to claim 10, wherein
the display unit uses, for each of the plurality of power generation methods of the external commercial electric power and the solar light power generation method, a standardized index which is standardized and which indicates a degree of influence on the environment according to a predefined standard, with a higher standardized index being set for a power generation method with a lower degree of influence on the environment, classifies at least one of the input-side electric power, the storage battery electric power, and the load-side electric power into the generated electric power of each power generation method, and displays a result acquired by multiplying the classified generated electric power by a corresponding standardized index.

### Claim 12 (depends on 11)

The electric power visualization device according to claim 11, further comprising:
a commercial electric power supply value acquisition unit which acquires an electric power supply value of the external commercial electric power with elapse of time;
a solar light generated electric power supply value acquisition unit which acquires an electric power supply value of the solar light generated electric power with the elapse of time;
a commercial electric power classification unit which classifies the acquired electric power supply value of the external commercial electric power into the generated electric power of each power generation method according to a predefined classification procedure, and
an output unit which multiples, for the input-side electric power, each of the generated electric power of each of the plurality of power generation methods of the external commercial electric power and the generated electric power of the solar light power generation method corresponding to the electric power supply value of the solar light generated electric power by the standardized index corresponding to each power generation method according to a difference in the power generation method, and outputs the result value, wherein
the display unit displays the result which is output with the elapse of time so as to be classified for each power generation method.