Control of a multi-rotor wind turbine system using a central controller to calculate local control objectives
First Claim
1. A control system for a wind turbine system comprising a plurality of wind turbine modules mounted to a common support structure, the control system comprising:
- a local controller operable to control an operation of a respective one of the plurality of wind turbine modules, and to issue local control commands thereto to achieve a set of local control objectives; and
a central controller implementing a model predictive control (MPC) routine configured to monitor an operation of the wind turbine system and based on the operation of the wind turbine system calculate the set of local control objectives,wherein the MPC routine employs a cost function that comprises elements directed to isolated operation of each of the respective one of the plurality of wind turbine modules and at least one element directed to a cross-coupling between at least two of the plurality of wind turbine modules,wherein the cross-coupling includes a structural cross-coupling between at least two of the plurality of wind turbine modules.
1 Assignment
0 Petitions
Accused Products
Abstract
The present invention relates to control of a wind turbine system comprising a plurality of wind turbine modules mounted to a common support structure, i.e. to control of a multi-rotor wind turbine system. The invention discloses a control system for a multi-rotor wind turbine system which comprises local controllers operable to control the wind turbine modules in accordance with local control objectives and a central controller configured to monitor the operation of the wind turbine system and based thereon calculate the local control objectives. The central controller is implemented as a model predictive controller (MPC).
15 Citations
14 Claims
-
1. A control system for a wind turbine system comprising a plurality of wind turbine modules mounted to a common support structure, the control system comprising:
-
a local controller operable to control an operation of a respective one of the plurality of wind turbine modules, and to issue local control commands thereto to achieve a set of local control objectives; and a central controller implementing a model predictive control (MPC) routine configured to monitor an operation of the wind turbine system and based on the operation of the wind turbine system calculate the set of local control objectives, wherein the MPC routine employs a cost function that comprises elements directed to isolated operation of each of the respective one of the plurality of wind turbine modules and at least one element directed to a cross-coupling between at least two of the plurality of wind turbine modules, wherein the cross-coupling includes a structural cross-coupling between at least two of the plurality of wind turbine modules. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
-
-
12. A wind turbine system comprising a plurality of wind turbine modules mounted to a common support structure, wherein each of the plurality of wind turbines modules includes a rotor and a power generation system driven by the rotor, wherein the wind turbine system further comprises:
-
a local controller operable to control an operation of a respective one of the plurality of wind turbine modules, and to issue local control commands thereto to achieve a set of local control objectives; and a central controller implementing a model predictive control (MPC) routine configured to monitor an operation of the wind turbine system and based on the operation of the wind turbine system calculate the set of local control objectives, wherein the MPC routine employs a cost function that comprises elements directed to isolated operation of each of the respective one of the plurality of wind turbine modules and at least one element directed to a cross-coupling between at least two of the plurality of wind turbine modules, wherein the cross-coupling includes a structural cross-coupling between at least two of the plurality of wind turbine modules.
-
-
13. A method of controlling a wind turbine system comprising a plurality of wind turbine modules mounted to a common support structure, the method comprising:
-
controlling an operation of a respective one of the plurality of wind turbine modules to achieve a set of local control objectives; monitoring an operation of the wind turbine system to determine a current operational state; and calculating using a model predictive control (MPC) routine and based on the current operational state, the set of local control objectives, wherein the MPC routine employs a cost function that comprises elements directed to isolated operation of each of the respective one of the plurality of wind turbine modules and at least one element directed to a cross-coupling between at least two of the plurality of wind turbine modules, wherein the cross-coupling includes a structural cross-coupling between at least two of the plurality of wind turbine modules.
-
-
14. A non-transitory computer readable medium including computer program code that, when executed by one or more computer processors, performs an operation to control a wind turbine system comprising a plurality of wind turbine modules mounted to a common support structure, the operation comprising:
-
generating instructions to a local controller arranged to control an operation of a respective one of the plurality of wind turbine modules to achieve a set of local control objectives; monitoring an operation of the wind turbine system to determine a current operational state; and calculating using a model predictive control (MPC) routine and based on the current operational state, the set of local control objectives, wherein the MPC routine employs a cost function that comprises elements directed to isolated operation of each of the respective one of the plurality of wind turbine modules and at least one element directed to a cross-coupling between at least two of the plurality of wind turbine modules, wherein the cross-coupling includes a structural cross-coupling between at least two of the plurality of wind turbine modules.
-
Specification