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US 11,448,185 B2Granted
Control system of a wind turbine and associated method
AssigneeNordex Energy Spain, S.A.U.
InventorsJose Miguel Garcia Sayes, Guillermo Beriain Guembe, Alberto Garcia Barace, Javier Gil Guruceaga, Daniel Ortiz Irigoyen, Teresa Arlaban Gabeiras, Alejandro Gonzalez Murua, Ricardo Royo Garcia, Miguel Nunez Polo
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Abstract
A control system and control method of a wind farm which allows taking into account dynamic variations in the possibilities of reactive power generation of each wind turbine with respect to maximum reactive power generation capacities. The system calculates an initial torque and a maximum reactive power limit such that it is not necessary to apply limitations to the initial torque.
Claims22
A control system for a wind turbine wherein the control system is configured to:
- calculate an initial torque/active power control setpoint desired to be generated by the wind turbine based on a first operating conditions of the wind turbine;
- calculate at least one maximum reactive power limit desired based on:
- at least one maximum electric capacity in the first operating conditions of the wind turbine, and
- the initial torque/active power control setpoint desired, such that the at least one maximum electric capacity is not exceeded;
- and
- send the at least one maximum reactive power limit desired lower than a rated reactive power required to a central control system of a farm wherein the wind turbine is disposed,
- wherein the control system is configured to calculate the at least one maximum reactive power limit desired which corresponds to a reactive power which can be generated without applying electric limitations to the initial torque/active power control setpoint desired, and wherein the control system is configured to generate an active power greater than a rated active power based on the at least one maximum reactive power limit desired lower than the rated reactive power required.
4 more elements
A control method of a wind turbine comprising the following steps:
- calculating an initial torque/active power control setpoint desired to be generated by the wind turbine based on a first operating conditions of the wind turbine;
- calculating at least one maximum reactive power limit desired based on:
- at least one maximum electric capacity in the first operating conditions of the wind turbine;
- and
- the initial torque/active power control setpoint desired, such that the at least one maximum electric capacity is not exceeded;
- sending the at least one maximum reactive power limit desired lower than a rated reactive power required to a central control system of a farm wherein the wind turbine is disposed,
- wherein the step of calculating the at least one maximum reactive power limit desired which corresponds to the reactive power which can be generated is carried out without applying electric limitations to the initial torque/active power control setpoint desired;
- and
- generating an active power greater than a rated active power based on the at least one maximum reactive power limit desired lower than the rated reactive power required.
6 more elements
A control system for a wind turbine, wherein the control system is configured to:
- calculate an initial torque/active power control setpoint desired to be generated by the wind turbine based on a first operating conditions of the wind turbine;
- calculate at least one maximum reactive power limit desired based on:
- at least one maximum electric capacity in the first operating conditions of the wind turbine, and
- the initial torque/active power control setpoint desired, such that the at least one maximum electric capacity is not exceeded;
- and
- send the at least one maximum reactive power limit desired lower than a rated reactive power required to a central control system of a farm wherein the wind turbine is disposed,
- wherein the control system is configured to calculate the at least one maximum reactive power limit desired which corresponds to the reactive power which can be generated without applying electric limitations to the initial torque/active power control setpoint desired, and
- wherein the control system is configured to generate an active power greater than a rated active power without exceeding the limit set by an apparent power based on the at least one maximum reactive power limit desired lower than the rated reactive power required.
5 more elements
A control system for a wind turbine, wherein the control system is configured to:
- calculate an initial torque/active power control setpoint desired to be generated by the wind turbine based on a first operating conditions of the wind turbine;
- calculate at least one maximum reactive power limit desired based on:
- at least one maximum electric capacity in the first operating conditions of the wind turbine, and
- the initial torque/active power control setpoint desired, such that the at least one maximum electric capacity is not exceeded;
- and
- send the at least one maximum reactive power limit desired lower than a rated reactive power required to a central control system of a farm wherein the wind turbine is disposed,
- wherein the control system is configured to calculate the at least one maximum reactive power limit desired which corresponds to the reactive power which can be generated without applying electric limitations to the initial torque/active power control setpoint desired, and
- wherein the control system is configured to generate an active power greater than a rated active power based on a final reactive power setpoint calculated for the wind turbine of the farm which in turn is based on the at least one maximum reactive power limit desired lower than the rated reactive power required.
5 more elements
Dependencies are inferred from the claim text.