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US 12,224,699 B2Granted
Wind turbine generator system, and rotation speed avoidance control method and apparatus therefor
AssigneeBeijing Goldwind Science & Creation Windpower Equipment Co., Ltd.
InventorXinli Zhang
Life of this patent
Estimating the term…
Abstract
A rotation speed exclusion control method for a wind turbine generator system. The method comprises: when a power-limited operation instruction is received, determining a power value upper limit required by the instruction; determining that the required power value upper limit is in a power exclusion interval corresponding to a rotation speed exclusion interval; and when the required power value upper limit is in the power exclusion interval, setting the maximum allowable power value of a wind turbine generator system to be a lower boundary value of the power exclusion interval.
Claims16
A method for controlling a rotational speed exclusion range for a wind turbine, comprising:
- determining an upper limit of power required by an instruction for a limited-power operation of the wind turbine;
- identifying an abnormality of the rotational speed exclusion range for the wind turbine based on statistical information about a rotational speed of a generator operating in the rotational speed exclusion range;
- judging that the required upper limit of power is in a power exclusion range corresponding to the rotational speed exclusion range during the abnormality;
- setting a maximum allowable power of the wind turbine as a lower boundary value of the power exclusion range during the required upper limit of power is in the power exclusion range,
- wherein an upper boundary value of the power exclusion range is power determined based on an upper boundary value of the rotational speed exclusion range, and the lower boundary value of the power exclusion range is power determined based on a lower boundary value of the rotational speed exclusion range,
- wherein each of the rotational speed exclusion range and the power exclusion range is an open interval in which endpoints at both ends are excluded, and
- wherein the method further comprises:
- setting the maximum allowable power of the wind turbine as the required upper limit of power during the required upper limit of power is not in the power exclusion range.
5 more elements
A wind turbine, comprising:
- a generator, comprising a stator and a rotor mechanically connected to an impeller;
- a converter, which is electrically coupled to a stator winding;
- a data collection module, configured to collect a rotational speed of the rotor of the generator;
- and
- a controller, configured to set an electromagnetic torque parameter of the converter to control the rotational speed of the generator, wherein the controller is configured to:
- determine an upper limit of power required by an instruction for a limited-power operation of the wind turbine;
- identify an abnormality of a rotational speed exclusion range for the wind turbine based on statistical information about the rotational speed of the generator operating in the rotational speed exclusion range;
- judge that the required upper limit of power is in a power exclusion range corresponding to the rotational speed exclusion range during the abnormality;
- set a maximum allowable power of the wind turbine as a lower boundary value of the power exclusion range during the required upper limit of power is in the power exclusion range,
- wherein an upper boundary value of the power exclusion range is power determined based on an upper boundary value of the rotational speed exclusion range, and the lower boundary value of the power exclusion range is power determined based on a lower boundary value of the rotational speed exclusion range,
- wherein each of the rotational speed exclusion range and the power exclusion range is an open interval in which endpoints at both ends are excluded, and
- wherein the controller is further configured to:
- set the maximum allowable power of the wind turbine as the required upper limit of power during the required upper limit of power is not in the power exclusion range.
10 more elements
A computer-readable storage medium storing computer programs thereon, wherein the computer programs, when being executed by a processor, cause the processor to:
- determine an upper limit of power required by an instruction for a limited-power operation of a wind turbine;
- identify an abnormality of a rotational speed exclusion range for the wind turbine based on statistical information about a rotational speed of a generator operating in the rotational speed exclusion range;
- judge that the required upper limit of power is in a power exclusion range corresponding to the rotational speed exclusion range during the abnormality;
- set a maximum allowable power of the wind turbine as a lower boundary value of the power exclusion range during the required upper limit of power is in the power exclusion range,
- wherein an upper boundary value of the power exclusion range is power determined based on an upper boundary value of the rotational speed exclusion range, and the lower boundary value of the power exclusion range is power determined based on a lower boundary value of the rotational speed exclusion range,
- wherein each of the rotational speed exclusion range and the power exclusion range is an open interval in which endpoints at both ends are excluded, and
- wherein the computer programs, when being executed by the processor, further cause the processor to:
- set the maximum allowable power of the wind turbine as the required upper limit of power in during the required upper limit of power is not in the power exclusion range.
5 more elements
Dependencies are inferred from the claim text.