# US 11,994,110 B2 · Method for providing reactive power > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,994,110 B2 - Document ID: US11994110B2 - Status: Granted - Kind: B2 - Application number: 17/525,568 - Filed: 2021-11-12 - Published: 2022-05-19 - Granted: 2024-05-28 - Earliest claimed: 2020-11-13 - Assignees: Wobben Properties GmbH - Applicants: Wobben Properties GmbH - Inventors: Johannes Brombach - Web page: https://patentgrep.com/patent/US11994110B2 ## CPC - F03D 7/048: {controlling wind farms} - H02J 3/18: Arrangements for adjusting, eliminating or compensating reactive power in networks - F03D 7/047: {characterised by the controller architecture, e.g. multiple processors or data communications} - H02J 3/46: Controlling the sharing of generated power between the generators, sources or networks - H02J 3/50: Controlling the sharing of reactive power - F03D 7/0284: {in relation to the state of the electric grid} - F05B 2270/1033: Power (if explicitly mentioned) - F05B 2270/335: Output power or torque - F05B 2270/337: Electrical grid status parameters, e.g. voltage, frequency or power demand - H02J 2101/28: Wind energy - Y02E 10/72: Wind turbines with rotation axis in wind direction - Y02E 10/76: Power conversion electric or electronic aspects - Y02E 40/30: Reactive power compensation - F03D: WIND MOTORS - H02J: ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY - F05B: INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G - Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION ## Abstract Provided is a method for controlling an electrical installation, in particular a wind power installation or a wind farm. The method includes determining a specific location within an electrical supply network to which the electrical installation is electrically connected via the electrical supply network, determining an electrical variable which maps an electrical distance between the electrical installation and the specific location and ascertaining a potential reactive power of the electrical installation for the specific location depending on the electrical variable which maps an electrical distance between the electrical installation and the specific location. ## Claims ### Claim 1 A method for controlling an electrical installation, comprising: determining a specific location within an electrical supply network to which the electrical installation is electrically connected via the electrical supply network; determining an electrical variable which represents a distance in the electrical supply network between the electrical installation and the specific location; determining a potential reactive power of the electrical installation for the specific location depending on the electrical variable; transmitting the determined potential reactive power to a network operator; and controlling the electrical installation based on the potential reactive power, wherein the electrical installation is a wind power installation or a wind farm, wherein the specific location is specified by the network operator of the electrical supply network. ### Claim 2 (depends on 1) The method for controlling the electrical installation as claimed in claim 1, wherein the electrical variable is an impedance between the electrical installation and the specific location. ### Claim 3 (depends on 2) The method for controlling the electrical installation as claimed in claim 2, wherein the impedance is an effective impedance. ### Claim 4 (depends on 2) The method for controlling the electrical installation as claimed in claim 2, wherein the impedance is an equivalent impedance between the electrical installation and the specific location. ### Claim 5 (depends on 1) The method for controlling the electrical installation as claimed in claim 1, comprising: generating and feeding the determined potential reactive power into the electrical supply network. ### Claim 6 (depends on 1) The method for controlling the electrical installation as claimed in claim 1, comprising: determining the potential reactive power depending on an operating point of the electrical installation. ### Claim 7 (depends on 6) The method for controlling the electrical installation as claimed in claim 6, comprising: determining the operating point of the electrical installation depending on a requested reactive power. ### Claim 8 (depends on 7) The method for controlling the electrical installation as claimed in claim 7, wherein the requested reactive power is requested by the network operator. ### Claim 9 (depends on 1) The method for controlling the electrical installation as claimed in claim 1, comprising: determining the potential reactive power using iterative requests and responses by the network operator and the electrical installation. ### Claim 10 (depends on 1) The method for controlling the electrical installation as claimed in claim 1, wherein the method is performed by a wind power installation or a wind farm. ### Claim 11 (depends on 1) A wind power installation, comprising: a controller configured to perform the method as claimed in claim 1, wherein the controller is configured to receive data from the network operator and/or send data to the network operator. ### Claim 12 (depends on 1) A wind farm, comprising: a wind farm controller configured to perform the method as claimed in claim 1, wherein the wind farm controller is configured to receive data from the network operator and/or send data to the network operator. ### Claim 13 A method for controlling an electrical installation, comprising: determining a specific location within an electrical supply network to which the electrical installation is electrically connected via the electrical supply network; determining an electrical variable which represents a distance in the electrical supply network between the electrical installation and the specific location; determining a potential reactive power of the electrical installation for the specific location depending on the electrical variable, wherein determining the potential reactive power uses iterative requests and responses by a network operator and the electrical installation, transmitting the determined potential reactive power to the network operator; and controlling the electrical installation based on the potential reactive power, wherein the electrical installation is a wind power installation or a wind farm.