# US 11,309,734 B2 · System for controlling power consumption on a distribution grid

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- Number: US 11,309,734 B2
- Document ID: US11309734B2
- Status: Granted
- Kind: B2
- Application number: 16/758,911
- Filed: 2019-03-25
- Published: 2021-06-10
- Granted: 2022-04-19
- Earliest claimed: 2018-03-23
- Assignees: Electricity North West Property Limited
- Applicants: Electricity North West Property Limited
- Inventors: Steve Cox
- Web page: https://patentgrep.com/patent/US11309734B2

## CPC

- H02J 3/14: by switching loads on to, or off from, the networks, e.g. progressively balanced loading
- G05B 13/041: {in which a variable is automatically adjusted to optimise the performance}
- H02J 3/18: Arrangements for adjusting, eliminating or compensating reactive power in networks
- H02J 13/12: Monitoring network conditions, e.g. electrical magnitudes or operational status
- H02J 13/13: characterised by the transmission of data to equipment in the power network
- H02J 13/333: the equipment forming part of substations
- H02J 3/0014: for preventing or reducing power oscillations in networks
- H02J 13/14: the power network being locally controlled, e.g. home energy management systems [HEMS]
- H02J 2103/30: Simulating, planning, modelling, reliability check or computer assisted design [CAD] of electric power networks
- H02J 2105/12: supplying households or buildings
- 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
- Y02B 90/20: Smart grids as enabling technology in buildings sector (smart grids supporting the management or operation of end-user stationary applications in general, or like technologies with no associated climate change mitigation effect Y04S20/00)
- Y02E 60/00: Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y04S 20/00: Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S 20/222: Demand response systems, e.g. load shedding, peak shaving
- Y04S 20/242: Home appliances
- Y04S 40/12: characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S 40/20: Information technology specific aspects, e.g. CAD, simulation, modelling, system security
- H02J: ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- G05B: CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS (systems for controlling or regulating non-electric variables G05D; systems for regulating electric or magnetic variables G05F; control devices or systems insofar as characterised by mechanical features only G05G)
- 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
- 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

System for controlling power consumption on a portion of a distribution grid providing electrical power to a plurality of power-consuming units and including a substation providing one or more transformers operable to increase or decrease the voltage supplied to consumers within the portion of the grid. A data set includes a previously measured power consumption associated with previously measured values of (a) property(ies) being one of voltage, current, frequency or load, or a combination thereof. A measurement device for measuring the property(ies) of the grid. A processing device to determine from the previously measured values of the property(ies) a most likely effect of altering the value(s) of the property(ies) from a first value to a second value. A storage device for storing one or more rules associating a measured condition with a corrective action. The system being operable to determine whether a measurement meets a measured condition of a stored rule.

## Claims

### Claim 1

A system for controlling power consumption on a portion of a distribution grid, the portion of the grid providing electrical power to a plurality of power-consuming units, the system including:
a data set including a previously measured power consumption associated with previously measured values of at least one property, the at least one property being one of voltage, current, frequency or load, or a combination thereof,
a measurement device for measuring the at least one property of the grid,
a processing device to determine from the previously measured values of the at least one property in the data set an effect of altering the value(s) of the at least one property from a first value to a second value on the power consumption on that portion of the distribution grid,
a storage device for storing one or more rules associating a measured condition with a corrective action associated with one or more of the power-consuming units, and
wherein the corrective action includes at least one of turning on or off one or more power-consuming units, turning one or more power-consuming units off or on for a pre-determined duration of time and subsequently turning the unit back on or off, respectively, instructing the power-consuming units to reduce or raise their power consumption to alter the value of the at least one property from the first value to the second value;
the system determining whether a measurement meets a measured condition of a stored rule, and for each triggered rule, communicating instructions to the respective power-consuming units to perform the corrective action associated with the triggered rule,
wherein a remote control unit is associated with each power-consuming unit, and wherein communicating an instruction to the power-consuming units comprises communicating the instruction to the remote control unit, and the remote control unit taking the required corrective action associated with the power-consuming unit(s).

### Claim 2 (depends on 1)

A system according to claim 1, comprising a power-control device providing a processor for determining whether a measurement meets a measured condition of a stored rule, and a communication interface for communication instructions to the respective power-consuming units.

### Claim 3 (depends on 2)

A system according to claim 2, wherein the power-control device comprises the measurement device and/or the storage device.

### Claim 4

A method of controlling power consumption on a portion of a distribution grid, the portion of the grid providing electrical power to a plurality of power-consuming units, the method comprising:
providing a data set including a previously measured power consumption associated with previously measured values of at least one property, the at least one property being one of voltage, current, frequency or load, or a combination thereof,
storing one or more rules associating a measured condition with a corrective action associated with one or more of the power-consuming units, and
wherein the corrective action includes at least one of turning on or off one or more power-consuming units, turning one or more power-consuming units off or on for a pre-determined duration of time and subsequently turning the unit back on or off, respectively, instructing the power-consuming units to reduce or raise their power consumption to alter the value of the at least one property from the first value to the second value;
measuring the property, or properties, of the grid,
determining from the previously measured values of the at least one property in the data set an effect of altering the value(s) of the at least one property from a first value to a second value on the power consumption of those consumers,
determining whether a measurement meets a measured condition of a stored rule, and
for each triggered rule, communicating instructions to the respective power-consuming units to perform the corrective action associated with the triggered rule,
wherein a remote control unit is associated with each power-consuming unit, and wherein communicating an instruction to the power-consuming units comprises communicating the instruction to the remote control unit, and the remote control unit taking the required corrective action associated with the power-consuming unit(s).

### Claim 5

A power-control device for controlling power consumption on a distribution grid, the grid providing electrical power to a plurality of power-consuming units, the device comprising:
a data set including a previously measured power consumption associated with previously measured values of at least one property, the at least one property being one of voltage, current, frequency or load, or a combination thereof,
a measurement device for measuring an at least one property of the grid,
a processing device to determine from the previously measured values of the at least one property in the data set an effect of altering the value(s) of the at least one property from a first value to a second value on the power consumption of those consumers,
a storage device for storing one or more rules associating a measured condition with a corrective action associated with one or more of the power-consuming units, and
wherein the corrective action includes at least one of turning on or off one or more power-consuming units, turning one or more power-consuming units off or on for a pre-determined duration of time and subsequently turning the unit back on or off, respectively, instructing the power-consuming units to reduce or raise their power consumption to alter the value of the at least one property from the first value to the second value;
a processor determining whether a measurement meets a measured condition of a stored rule, and
a communication interface communicating instructions to the respective power-consuming units to perform the corrective action associated with the triggered rule, where a triggered rule is determined to have been triggered,
wherein a remote control unit is associated with each power-consuming unit, and wherein communicating an instruction to the power-consuming units comprises communicating the instruction to the remote control unit, and the remote control unit taking the required corrective action associated with the power-consuming unit(s).