# US 9,104,187 B2 · System and method for operating a wind energy installation or wind farm > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,104,187 B2 - Document ID: US9104187B2 - Status: Granted - Kind: B2 - Application number: 12/739,665 - Filed: 2008-10-13 - Published: 2010-12-16 - Granted: 2015-08-11 - Earliest claimed: 2007-10-23 - Assignees: Senvion SE - Applicants: Roman Bluhm; Sebastian Friederich; Jens Altemark - Inventors: Roman Bluhm; Sebastian Friederich; Jens Altemark - Web page: https://patentgrep.com/patent/US9104187B2 ## CPC - G05B 19/0421: {Multiprocessor system} - F03D 7/0284: {in relation to the state of the electric grid} - F03D 7/047: {characterised by the controller architecture, e.g. multiple processors or data communications} - F03D 7/048: {controlling wind farms} - F05B 2240/96: as part of a wind turbine farm - F05B 2260/80: Diagnostics - F05B 2270/337: Electrical grid status parameters, e.g. voltage, frequency or power demand - G05B 2219/21128: Change control signal, first max or min signal, then normal desired signal - G05B 2219/2619: Wind turbines - Y02E 10/72: Wind turbines with rotation axis in wind direction - 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) - F03D: WIND MOTORS - 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 A system and method for operating a wind energy installation or wind farm. The system includes a control unit configured to process control variables and a transfer module. The transfer module has an input interface for receiving control commands and an output interface for transmitting control variables to the control unit. The transfer module has multiple transfer logic elements each configured to convert a control command to a control variable. The transfer module has a switching device for switching between the transfer logic elements. As a result, the wind energy installation or wind farm can be connected to an electrical grid in which the control commands are transmitted in a different format than that of the control variables of the control unit. ## Claims ### Claim 1 A system for operating a wind energy installation or a wind farm, comprising: a control unit configured to process control variables and to control the wind energy installation or the wind farm as a function of the control variables; and a transfer module having an input interface configured to receive control commands, an output interface configured to transmit control variables to the control unit, a plurality of transfer logic elements each configured to convert a control command to a control variable, and a switching device configured to switch between the transfer logic elements in response to a control signal, wherein the transfer logic elements comprise a first transfer logic element and a second transfer logic element, wherein before switching occurs by the switching device all input control commands are passed to the first transfer logic element and after switching occurs by the switching device all input control commands are passed to the second transfer logic element, and wherein the first transfer logic element is configured to convert a first control command into a control variable and the second transfer logic element is configured to convert a second control command into a control variable, the first control command being given in a first format and the second control command being given in a second format different from the first format. ### Claim 2 (depends on 1) The system of claim 1, wherein a control command and each control variable comprises one or more actuating parameters. ### Claim 3 (depends on 2) The system of claim 2, wherein the one or more actuating parameters of a control variable comprise at least one of a frequency of an electrical grid, a real power, a reactive power, a voltage of the electrical grid, and volt amperes. ### Claim 4 (depends on 2) The system of claim 2, wherein the one or more actuating parameters of a control command comprise a regional identification. ### Claim 5 (depends on 1) The system of claim 1, wherein a control command comprises a plurality of actuating parameters. ### Claim 6 (depends on 1) The system of claim 1, wherein a control variable comprises a plurality of actuating parameters. ### Claim 7 (depends on 1) The system of claim 1, wherein a characteristic representing a relationship between a control command and a control variable is stored in a transfer logic element. ### Claim 8 (depends on 1) The system of claim 1, wherein the switching device is configured to switch between the transfer logic elements as a function of control signals. ### Claim 9 (depends on 1) The system of claim 1, wherein the switching device is remotely controllable. ### Claim 10 (depends on 1) The system of claim 1, wherein a number of transfer logic elements in the transfer module is variable. ### Claim 11 (depends on 10) The system of claim 10, wherein a number of transfer logic elements in a remote control is variable. ### Claim 12 (depends on 1) The system of claim 1, further comprising a signaling device for available reactive power. ### Claim 13 (depends on 1) The system of claim 1, wherein the control unit is the control unit of the wind energy installation. ### Claim 14 (depends on 1) The system of claim 1, wherein the control unit is the control unit of a farm master. ### Claim 15 (depends on 1) The system of claim 1, wherein a control command and a control variable each comprise only one actuating parameter. ### Claim 16 A method for operating a wind energy installation or a wind farm controlled by a control unit, the method comprising: determining control variables for which the control unit is configured; determining control commands intended for the control unit; and selecting one transfer logic element from a plurality of transfer logic elements available in a transfer module by using a switching device, wherein the transfer logic elements are configured to convert the control commands to the control variables, wherein the transfer logic elements comprise a first transfer logic element and a second transfer logic element, wherein before switching occurs by the switching device all input control commands are passed to the first transfer logic element and after switching occurs by the switching device all input control commands are passed to the second transfer logic element, and wherein the first transfer logic element is configured to convert a first control command into a control variable and the second transfer logic element is configured to convert a second control command into a control variable, the first control command being given in a first format and the second control command being given in a second format different from the first format. ### Claim 17 (depends on 16) The method of claim 16, further comprising remotely activating the selected transfer logic element. ### Claim 18 (depends on 16) The method of claim 16, further comprising remotely varying between the transfer logic elements in the transfer module. ### Claim 19 (depends on 16) The method of claim 16, further comprising remotely adding a transfer logic element to the transfer module.