# US 2021/0242683 A1 · Power amount measurement system, power amount measurement method, and power amount measurement device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2021/0242683 A1 - Document ID: US20210242683A1 - Status: Published application - Kind: A1 - Application number: 17/165,409 - Filed: 2021-02-02 - Published: 2021-08-05 - Earliest claimed: 2020-02-04 - Assignees: Toyota Jidosha Kabushiki Kaisha - Applicants: Toyota Jidosha Kabushiki Kaisha - Inventors: Shigeki Kinomura; Hironobu Kitaoka; Toru Nakamura; Hidetoshi Kusumi; Yoshiyuki Tsuchiya - Web page: https://patentgrep.com/patent/US20210242683A1 ## CPC - G01R 22/06: by electronic methods - H02J 3/322: {the battery being on-board an electric or hybrid vehicle, e.g. vehicle to grid arrangements [V2G], power aggregation, use of the battery for network load balancing, coordinated or cooperative battery charging} - B60L 53/66: Data transfer between charging stations and vehicles - B60L 53/68: Off-site monitoring or control, e.g. remote control - G01R 19/2513: {Arrangements for monitoring electric power systems, e.g. power lines or loads; Logging} - G01R 21/00: Arrangements for measuring electric power or power factor (G01R7/12 takes precedence) - G01R 22/063: {related to remote communication} - G05F 1/66: Regulating electric power - G06Q 50/06: Energy or water supply - H02J 7/90: Regulation of charging or discharging current or voltage - H02J 13/12: Monitoring network conditions, e.g. electrical magnitudes or operational status - H02J 13/1335: {involving a local wireless network, e.g. Wi-Fi®, ZigBee® or Bluetooth®} - H02J 13/333: the equipment forming part of substations - H02J 2105/10: Local stationary networks having a local or delimited stationary reach - 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 90/12: Electric charging stations - 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 30/12: Remote or cooperative charging - Y04S 40/126: using wireless data transmission - G01R: MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES (indicating correct tuning of resonant circuits H03J3/12) - H02J: ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY - 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 - G05F: SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES - 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 - 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 When a baseline is in a certain state, a server executes a process including: a step of calculating an amount of power exchanged between a battery and a power grid during the first charging control; a step of calculating an amount of power exchanged between the battery and the power grid during the second charging control; a step of calculating an amount of power exchanged between the battery and the power grid during the first power feeding control; a step of calculating an amount of power exchanged between the battery and the power grid during the second power feeding control; and a step of setting a calibration line for the amount of power. ## Claims ### Claim 1 A power amount measurement system comprising: a smart meter that measures an amount of power exchanged between a power grid and a connection target of the power grid; a power storage device that is one of a plurality of electrical devices included in the connection target; a power conversion device that adjusts power to be exchanged between the power grid and the power storage device; and a server that obtains a measurement result of the smart meter and that controls the power conversion device, wherein when a baseline indicating power consumption of an electrical device is in a certain state, the server instructs the power conversion device to execute first control to control the power conversion device to exchange power with a first amount of power being employed as an instruction value, the electrical device being other than the power storage device and included in the connection target, the server obtains, from the smart meter, a first measurement result about an amount of power exchanged during an execution period of the first control, when the baseline is in the certain state, the server instructs the power conversion device to execute second control to control the power conversion device to exchange power with a second amount of power being employed as the instruction value, the second amount of power being different from the first amount of power, the server obtains, from the smart meter, a second measurement result about an amount of power exchanged during an execution period of the second control, and the server determines, using the first measurement result and the second measurement result, a relation between the instruction value and a measurement value of the amount of power exchanged between the power grid and the power storage device. ### Claim 2 (depends on 1) The power amount measurement system according to claim 1, wherein the server sets, using the first measurement result and the second measurement result, a calibration line indicating the relation between the instruction value and the measurement value. ### Claim 3 (depends on 2) The power amount measurement system according to claim 2, wherein when the baseline is brought out of the certain state during execution of at least one of the first control and the second control, the server does not set the calibration line using the first measurement result and the second measurement result. ### Claim 4 (depends on 1) The power amount measurement system according to claim 1, wherein by instructing the power conversion device to execute the first control and the second control multiple times, the server obtains a plurality of measurement results about the amount of power exchanged during the execution period of the first control and the amount of power exchanged during the execution period of the second control. ### Claim 5 (depends on 4) The power amount measurement system according to claim 4, wherein the server obtains each of the first measurement result and the second measurement result using a third measurement result of the plurality of measurement results, the third measurement result indicating that a difference between the instruction value and the measurement value being less than or equal to a threshold value. ### Claim 6 A power amount measurement method employing a smart meter that measures an amount of power exchanged between a power grid and a connection target of the power grid, a power storage device that is one of a plurality of electrical devices included in the connection target, and a power conversion device that adjusts power to be exchanged between the power grid and the power storage device, the power amount measurement method comprising: when a baseline indicating power consumption of an electrical device is in a certain state, executing first control to control the power conversion device to exchange power with a first amount of power being employed as an instruction value, the electrical device being other than the power storage device and included in the connection target; obtaining, from the smart meter, a first measurement result about an amount of power exchanged during an execution period of the first control; when the baseline is in the certain state, executing second control to control the power conversion device to exchange power with a second amount of power being employed as the instruction value, the second amount of power being different from the first amount of power; obtaining, from the smart meter, a second measurement result about an amount of power exchanged during an execution period of the second control; and determining, using the first measurement result and the second measurement result, a relation between the instruction value and a measurement value of the amount of power exchanged between the power grid and the power storage device. ### Claim 7 A power amount measurement device for obtaining a measurement result of a smart meter that measures an amount of power exchanged between a power grid and a connection target of the power grid and for providing an execution instruction for predetermined control to a power conversion device that adjusts power to be exchanged between the power grid and a power storage device, the power storage device being one of a plurality of electrical devices included in the connection target, wherein when a baseline indicating power consumption of an electrical device is in a certain state, the power amount measurement device instructs the power conversion device to execute first control to control the power conversion device to exchange power with a first amount of power being employed as an instruction value, the electrical device being other than the power storage device and included in the connection target, the power amount measurement device obtains, from the smart meter, a first measurement result about an amount of power exchanged during an execution period of the first control, when the baseline is in the certain state, the power amount measurement device instructs the power conversion device to execute second control to control the power conversion device to exchange power with a second amount of power being employed as the instruction value, the second amount of power being different from the first amount of power, the power amount measurement device obtains, from the smart meter, a second measurement result about an amount of power exchanged during an execution period of the second control, and the power amount measurement device determines, using the first measurement result and the second measurement result, a relation between the instruction value and a measurement value of the amount of power exchanged between the power grid and the power storage device. ### Claim 8 A power amount measurement device for communicating with a server that obtains a measurement result of a smart meter that measures an amount of power exchanged between a power grid and a connection target of the power grid, the power amount measurement device comprising: a power storage device that is one of a plurality of electrical devices included in the connection target; a power conversion device that adjusts power to be exchanged between the power storage device and the power grid; and a controller that controls the power conversion device, wherein when a baseline indicating power consumption of an electrical device is in a certain state and the controller receives, from the server, an execution instruction for first control to control the power conversion device to exchange power with a first amount of power being employed as an instruction value, the controller executes the first control, the electrical device being other than the power storage device and included in the connection target, the controller obtains, from the server, a first measurement result about an amount of power exchanged during an execution period of the first control, when the baseline is in the certain state and the controller receives, from the server, an execution instruction for second control to control the power conversion device to exchange power with a second amount of power being employed as the instruction value, the controller executes the second control, the second amount of power being different from the first amount of power, the controller obtains, from the server, a second measurement result about an amount of power exchanged during an execution period of the second control, the controller determines, using the first measurement result and the second measurement result, a relation between the instruction value and the amount of power exchanged between the power grid and the power storage device, and the controller calculates, using the relation and the instruction value, a measurement value of the amount of power exchanged between the power grid and the power storage device. ### Claim 9 A power amount measurement device for communicating with a server that provides an execution instruction for predetermined control to a power conversion device that adjusts power to be exchanged between a power storage device and a power grid, the power storage device being one of a plurality of electrical devices included in a connection target of the power grid, the power amount measurement device comprising: a measurement device that measures an amount of power exchanged between the power grid and the connection target; and a calculation device that calculates a measurement value of an amount of power exchanged between the power grid and the power storage device, wherein when a baseline indicating power consumption of an electrical device other than the power storage device and included in the connection target is in a certain state, the server instructs the power conversion device to execute first control to control the power conversion device to exchange power with a first amount of power being employed as an instruction value and instructs the power conversion device to execute second control to control the power conversion device to exchange power with a second amount of power being employed as the instruction value, the second amount of power being different from the first amount of power, the calculation device determines, using a first measurement result and a second measurement result, a relation between the instruction value and the measurement value of the amount of power exchanged between the power grid and the power storage device, the first measurement result being a measurement result about an amount of power exchanged during an execution period of the first control, the second measurement result being a measurement result about an amount of power exchanged during an execution period of the second control, the first measurement result and the second measurement result being provided by the measurement device, and the calculation device calculates, using the relation and the instruction value, a measurement value of power exchanged between the power grid and the power storage device.