CN109707563B - Variable pitch driver restart control method and device and wind generating set - Google Patents
Variable pitch driver restart control method and device and wind generating set Download PDFInfo
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- CN109707563B CN109707563B CN201811602564.7A CN201811602564A CN109707563B CN 109707563 B CN109707563 B CN 109707563B CN 201811602564 A CN201811602564 A CN 201811602564A CN 109707563 B CN109707563 B CN 109707563B
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- Y02E10/00—Energy generation through renewable energy sources
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Abstract
The embodiment of the invention discloses a method and a device for restarting and controlling a variable pitch driver and a wind generating set. The method comprises the following steps: receiving variable pitch parameter information sent by each variable pitch controller; determining whether at least two blades of the wind power generation set have blade clamping faults at present according to the variable-pitch parameter information; judging whether the current operation information of the wind power generation set meets the preset condition that the personnel risk can be avoided; if the wind generating set has at least two blades which have blade jamming faults at present and the operation information of the current wind generating set meets the condition that the personnel risk can be avoided, a variable pitch driver restarting instruction is sent to a variable pitch controller corresponding to the blade with the blade jamming faults, so that the variable pitch controller controls the corresponding variable pitch driver to restart according to the variable pitch driver restarting instruction. According to the pitch-variable driver restart control method and device and the wind generating set, the personal safety of maintenance personnel can be ensured, the maintenance cost can be reduced, and the loss of generated energy can be reduced.
Description
Technical Field
The invention relates to the technical field of wind power generation, in particular to a method and a device for restarting and controlling a variable pitch driver and a wind generating set.
Background
With the social development and the increasingly prominent energy problems, wind energy is more and more emphasized by people as a clean renewable energy source, wherein the most important purpose is to serve as a power source for power generation.
The variable pitch system is an important component of the wind generating set. The main functions of the pitch system are: when the wind generating set normally operates, the pitch angle of the blades is adjusted according to the change of the wind speed, power adjustment is achieved, when the wind generating set breaks down, feathering is rapidly carried out to the stop position, and the safety of the wind generating set is guaranteed.
When the variable pitch is carried out, the variable pitch driver drives the variable pitch motor to rotate according to the variable pitch instruction sent by the variable pitch controller so as to drive the blades to rotate to finish variable pitch. Once the variable pitch driver breaks down, the variable pitch action cannot be finished, even the risk of runaway is caused, and great potential safety hazard is brought to the operation of the wind generating set. Most pitch drive failures are resolved by restarting the pitch drive.
If the pitch system is not switched into the manual maintenance mode by the maintenance personnel in the debugging process of the wind generating set or when the maintenance personnel handle the pitch clamping fault, the personal safety of the maintenance personnel can be endangered if the pitch driver is restarted.
Disclosure of Invention
The embodiment of the invention provides a method and a device for restarting and controlling a variable pitch driver and a wind generating set, which can ensure the personal safety of maintenance personnel, reduce the maintenance cost and reduce the loss of generated energy.
In one aspect, an embodiment of the present invention provides a method for restarting and controlling a pitch drive, where the method includes:
receiving variable pitch parameter information sent by each variable pitch controller;
determining whether at least two blades of the wind power generation set have blade clamping faults at present according to the variable-pitch parameter information;
judging whether the current operation information of the wind power generation set meets the preset condition that the personnel risk can be avoided;
if the wind generating set has at least two blades which have blade jamming faults at present and the operation information of the current wind generating set meets the condition that the personnel risk can be avoided, a variable pitch driver restarting instruction is sent to a variable pitch controller corresponding to the blade with the blade jamming faults, so that the variable pitch controller controls the corresponding variable pitch driver to restart according to the variable pitch driver restarting instruction.
In an embodiment of the invention, the current operation information of the wind power generation set includes a time length of a propeller clamping fault, and the preset condition that the risk of personnel can be avoided includes: the failure time of the paddle clamping is within a preset time range; and/or the presence of a gas in the gas,
the operation information of the current wind power generation set comprises the restarting times of a variable pitch driver, and the preset personnel risk evaluable conditions comprise: restarting the variable-pitch driver for no more than a preset number of times; and/or the presence of a gas in the gas,
the operation information of the current wind power generation set comprises whether a variable pitch controller executes reset operation, and the preset personnel risk evaluable condition comprises the following steps: the pitch controller does not perform a reset operation; and/or the presence of a gas in the gas,
the operation information of the current wind power generation set comprises whether the feathering of the blades is finished, and the preset personnel risk evasive conditions comprise: the feathering of the blades is not completed.
In an embodiment of the present invention, the method for restarting and controlling a pitch drive further includes:
if the wind generating set is in a non-power generation state, an impeller of the wind generating set is not locked and a variable pitch driver fails, receiving a manual restarting instruction of a maintenance worker for the failed variable pitch driver;
and sending a variable pitch driver restarting instruction to a variable pitch controller corresponding to the variable pitch driver with the fault according to the manual restarting instruction, so that the variable pitch controller controls the variable pitch driver with the fault to restart according to the variable pitch driver restarting instruction.
In an embodiment of the present invention, determining whether at least two blades of the wind power generation group are currently in a blade-jamming fault according to the variable pitch parameter information includes:
if two pitch angles in the three pitch angles sent by the received pitch controller are smaller than the feathering angle, determining that at least two blades of the wind power generation set are blocked at present; alternatively, the first and second electrodes may be,
and if two of the three received variable pitch speeds sent by the variable pitch controller are smaller than feathering, determining that at least two blades of the wind power generation set have a blade clamping fault at present.
On the other hand, the embodiment of the invention provides a control device for restarting a variable-pitch driver, which comprises the following components:
the first receiving module is used for receiving variable pitch parameter information sent by each variable pitch controller;
the determining module is used for determining whether the wind power generation set has at least two blades which are blocked according to the variable pitch parameter information;
the judgment module is used for judging whether the current operation information of the wind power generation set meets the preset evasive condition of personnel risk;
and the sending module is used for sending a variable pitch driver restarting instruction to a variable pitch controller corresponding to the blade with the jammed blade if the wind generating set has at least two blades which have jammed blade faults and the current operating information of the wind generating set meets the preset personnel risk evasive condition, so that the variable pitch controller controls the variable pitch driver to restart according to the variable pitch driver restarting instruction.
In an embodiment of the invention, the current operation information of the wind power generation set includes a time length of a propeller clamping fault, and the preset condition that the risk of personnel can be avoided includes: the failure time of the paddle clamping is within a preset time range; and/or the presence of a gas in the gas,
the operation information of the current wind power generation set comprises the restarting times of a variable pitch driver, and the preset personnel risk evaluable conditions comprise: restarting the variable-pitch driver for no more than a preset number of times; and/or the presence of a gas in the gas,
the operation information of the current wind power generation set comprises whether a variable pitch controller executes reset operation, and the preset personnel risk evaluable condition comprises the following steps: the pitch controller does not perform a reset operation; and/or the presence of a gas in the gas,
the operation information of the current wind power generation set comprises whether the feathering of the blades is finished, and the preset personnel risk evasive conditions comprise: the feathering of the blades is not completed.
In one embodiment of the invention, the pitch drive restart control apparatus further comprises:
the second receiving module is used for receiving a manual restarting instruction of a maintenance worker for a pitch driver with a fault if the wind generating set is in a non-power generation state, an impeller of the wind generating set is not locked and the pitch driver has the fault;
a sending module, further configured to:
and sending a variable pitch driver restarting instruction to a variable pitch controller corresponding to the variable pitch driver with the fault according to the manual restarting instruction, so that the variable pitch controller controls the variable pitch driver with the fault to restart according to the variable pitch driver restarting instruction.
In an embodiment of the present invention, the determining module is specifically configured to:
if two pitch angles in the three pitch angles sent by the received pitch controller are smaller than the feathering angle, determining that at least two blades of the wind power generation set are blocked at present; alternatively, the first and second electrodes may be,
and if two of the three received variable pitch speeds sent by the variable pitch controller are smaller than feathering, determining that at least two blades of the wind power generation set have a blade clamping fault at present.
In one embodiment of the invention, the pitch drive restart control means is provided in a main controller of the wind park.
In another aspect, an embodiment of the present invention provides a wind turbine generator system, including the pitch driver restart control apparatus provided in the embodiment of the present invention.
According to the pitch-variable driver restarting control method and device and the wind generating set, when the current running information of the wind generating set meets the preset personnel risk evasive condition, the pitch-variable driver restarting instruction is sent to the pitch-variable controller, the personal safety of maintenance personnel can be guaranteed, the maintenance cost can be reduced, and the power generation loss can be reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments of the present invention will be briefly described below, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 shows a schematic structural diagram of a restart control device of a pitch drive and a pitch system provided by an embodiment of the invention;
FIG. 2 illustrates a flow diagram of a method for controlling restart of a pitch drive according to an embodiment of the present invention;
fig. 3 shows a schematic structural diagram of a pitch driver restart control device provided by an embodiment of the invention.
Detailed Description
Features and exemplary embodiments of various aspects of the present invention will be described in detail below, and in order to make objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not to be construed as limiting the invention. It will be apparent to one skilled in the art that the present invention may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the present invention by illustrating examples of the present invention.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Fig. 1 shows a schematic structural diagram of a restart control device of a pitch drive and a pitch system provided by an embodiment of the invention.
It can be understood that, in the present embodiment, the wind turbine generator set includes one pitch driver restart control device, three pitch systems and three blades, and each pitch system is used for controlling one blade to pitch.
As can be seen from fig. 1, the wind turbine generator system comprises a pitch drive restart control device 100, three pitch systems and three blades. The three variable pitch systems are respectively a 1# variable pitch system 101, a 2# variable pitch system 102 and a 3# variable pitch system 103, and the three blades are respectively a 1# blade, a 2# blade and a 3# blade. The 1# variable pitch system 101 comprises a 1# variable pitch controller 201, a 1# variable pitch driver 301 and a 1# variable pitch motor 401, and the 1# variable pitch system 101 is used for controlling the 1# blade to change pitch; 2# pitch system 102 comprises a 2# pitch controller 202, a 2# pitch driver 302 and a 2# pitch motor 402, and 2# pitch system 102 is used for controlling 2# blade pitch; the # 3 pitch system 103 comprises a # 3 pitch controller 203, a # 3 pitch driver 303 and a # 3 pitch motor 403, and the # 3 pitch system 103 is used for controlling the # 3 blade pitch.
The pitch drive restart control apparatus 100 may be provided in a main controller of the wind turbine generator set.
FIG. 2 shows a flow diagram of a restart control method for a pitch drive according to an embodiment of the present invention.
S201: and receiving the variable pitch parameter information sent by each variable pitch controller.
S202: and determining whether the wind power generation group has at least two blades which are blocked according to the variable pitch parameter information.
S203: and judging whether the current operation information of the wind power generation set meets the preset condition that the personnel risk can be avoided.
S204: if the wind generating set has at least two blades which have blade jamming faults at present and the operation information of the current wind generating set meets the condition that the personnel risk can be avoided, a variable pitch driver restarting instruction is sent to a variable pitch controller corresponding to the blade with the blade jamming fault, so that the variable pitch controller controls the variable pitch driver to restart according to the variable pitch driver restarting instruction.
The following describes a restart control method of a pitch drive according to an embodiment of the present invention with reference to fig. 1.
In one embodiment of the invention, the pitch parameter information may comprise: the pitch angle.
Assuming that the restarting control device 100 of the variable pitch driver only receives that the pitch angle sent by one variable pitch controller is smaller than the feathering angle, it is determined that only one blade is currently locked, and the blade with the locked blade is the blade corresponding to the pitch angle smaller than the feathering angle. For example, if the pitch angle sent by the 1# pitch controller 201 is received by the pitch driver restart control device 100 and is smaller than the feathering angle, it is determined that only the 1# blade is currently locked.
Assuming that the pitch angle sent by the two pitch controllers is smaller than the feathering angle, which is received by the restart control device 100 of the pitch drive, it is determined that two blades are currently locked, and the blade with the locked blade is a blade corresponding to the pitch angle smaller than the feathering angle. For example, if the pitch angle received by the pitch drive restart control device 100 and sent by the pitch controller 201 # and the pitch controller 202 # is smaller than the feathering angle, it is determined that two blades are currently locked, and the locked blades are the 1# blade and the 2# blade.
Assuming that the pitch angle received by the restart control device 100 of the variable pitch drive and sent by the three variable pitch controllers is smaller than the feathering angle, it is determined that all three blades are currently locked. For example, when the pitch angle sent by the 1# pitch controller 201, the 2# pitch controller 202, and the 3# pitch controller 203 is received by the pitch driver restart control device 100 to be smaller than the feathering angle, it is determined that all three blades are locked, and the locked blades are the 1# blade, the 2# blade, and the 3# blade.
Based on the above, in an embodiment of the present invention, determining whether at least two blades of the wind power generation group are currently in a blade-jamming fault according to the pitch parameter information may include: and if two pitch angles in the three pitch angles sent by the received pitch controller are smaller than the feathering angle, determining that at least two blades of the wind power generation set have a blade clamping fault at present.
In one embodiment of the invention, the pitch parameter information may comprise: and (4) changing the pitch speed.
Assuming that the restarting control device 100 of the variable pitch drive only receives that the variable pitch speed sent by one variable pitch controller is less than the feathering speed, it is determined that only one blade is currently locked, and the locked blade is the blade corresponding to the variable pitch speed less than the feathering speed. For example, if the pitch drive restart control device 100 only receives that the pitch speed sent by the 1# pitch controller 201 is less than the feathering speed, it is determined that only the 1# blade is currently locked.
Assuming that the pitch control speed sent by the two pitch controllers is lower than the feathering speed, the restart control device 100 of the pitch drive determines that two blades are currently locked, and the locked blade is the blade corresponding to the pitch control speed lower than the feathering speed. For example, if the pitch speed received by the pitch drive restart control device 100 and sent by the pitch controller 201 # and the pitch controller 202 # is smaller than the feathering speed, it is determined that two blades are currently locked, and the locked blades are the 1# blade and the 2# blade.
Assuming that the pitch control speed received by the pitch drive restarting control device 100 and sent by the three pitch controllers is smaller than the feathering speed, it is determined that all three blades are currently locked. For example, if the pitch control speed sent by the 1# pitch controller 201, the 2# pitch controller 202, and the 3# pitch controller 203 and received by the pitch driver restart control device 100 is less than the feathering speed, it is determined that all three blades are jammed, and the jammed blades are the 1# blade, the 2# blade, and the 3# blade.
Based on the above, in an embodiment of the present invention, determining whether at least two blades of the wind power generation group are currently in a blade-jamming fault according to the pitch parameter information may include: and if two of the three received variable pitch speeds sent by the variable pitch controller are smaller than feathering, determining that at least two blades of the wind power generation set have a blade clamping fault at present.
When at least two blades have a blade clamping fault, the safety of the wind generating set can be seriously influenced, and at the moment, the variable-pitch driver corresponding to the blade with the blade clamping fault needs to be restarted. In order to protect the personal safety of maintenance personnel, the embodiment of the invention avoids the personnel risk when the variable pitch drive is restarted, and the variable pitch drive is restarted only after the personnel risk is avoided.
Specifically, the variable-pitch driver restart control device 100 judges whether the operation information of the current wind power generation set meets the personnel risk evaluable condition, when it is determined that the operation information of the current wind power generation set meets the personnel risk evaluable condition, sends a variable-pitch driver restart instruction to the variable-pitch controller corresponding to the blade with the blade jam fault, and the variable-pitch controller receiving the variable-pitch driver restart instruction controls the variable-pitch driver corresponding to the variable-pitch controller to restart.
In one embodiment of the invention, the current operating information of the wind power generation set may include a length of time of a blade-jamming failure; accordingly, the preset human risk evasive condition may include: the failure time of the paddle clamping is within a preset time range.
In one embodiment of the invention, the operational information of the current wind power plant may include the number of pitch drive restarts; accordingly, the preset human risk evasive condition may include: the restarting times of the variable-pitch drive do not exceed the preset times.
In one embodiment of the invention, the operational information of the current wind power plant may include whether the pitch controller performs a reset operation; accordingly, the preset human risk evasive condition may include: the pitch controller does not perform a reset operation.
In one embodiment of the invention, the current operating information of the wind power generation set may include whether or not the feathering of the blades is completed; accordingly, the preset human risk evasive condition may include: the feathering of the blades is not completed.
For example, the following description will take an example in which the current operation information of the wind power generation set includes a blade-jamming failure time length, and the preset risk evasive condition includes that the blade-jamming failure time length is within a preset time length range.
Assuming that the preset time duration is 1 minute, the current 1# blade and 2# blade have a blade jamming fault, and the blade jamming fault time durations of both the 1# blade and the 2# blade do not exceed 1 minute, and at the moment, maintenance personnel should not enter the hub for maintenance due to short time, the variable pitch driver restart control device 100 determines that the blade jamming fault time durations of both the 1# blade and the 2# blade are within a range of 1 minute, that is, the operation information of the current wind power generation set meets the condition that the risk of the personnel can be avoided, sends a variable pitch driver instruction to the 1# variable pitch controller 201 and the 2# variable pitch controller 202, and the 1# variable pitch controller 201 and the 2# variable pitch controller 202 control the 1# variable pitch driver 301 and the 2# variable pitch driver 302 to restart. When the jamming failure time of the 1# blade and the 2# blade exceeds 1 minute, maintenance personnel can enter the hub, and at the moment, if the variable pitch drive is restarted, the personal safety of the maintenance personnel can be endangered.
Because the maintenance personnel do not enter the hub within the preset time length range, the variable pitch drive is restarted, the personal safety of the maintenance personnel is not endangered, and the personal safety of the maintenance personnel can be ensured.
For another example, the following description will be given by taking an example that the operation information of the current wind power generation set includes the restart times of the pitch drive, and the preset human risk evasive condition includes that the restart times of the pitch drive do not exceed the preset times.
Assuming that the predicted times are 50 times, the current 1# blade and 2# blade have blade sticking faults, the 1# variable-pitch driver 301 and the 2# variable-pitch driver 302 are restarted for more than 50 times, and the variable-pitch driver restart control device 100 determines that the 1# blade and the 2# blade have the variable-pitch driver restart times which are both more than 50 times, namely that the current operating information of the wind power generation set does not meet the personnel risk evaluable condition, and does not send a variable-pitch driver restart instruction. Assuming that the current 1# blade and 2# blade have a blade sticking fault, the restarting times of the 1# pitch driver 301 and the 2# pitch driver 302 do not exceed 50 times, the pitch driver restart control device 100 determines that the restarting times of the pitch drivers of the 1# blade and the 2# blade do not exceed 50 times, namely the operation information of the current wind power generation group meets the personnel risk evaluable condition, sends a pitch driver restart instruction to the 1# pitch controller 201 and the 2# pitch controller 202, and the 1# pitch controller 201 and the 2# pitch controller 202 control the 1# pitch driver 301 and the 2# pitch driver 302 to restart.
According to the restarting control method of the variable pitch driver provided by the embodiment of the invention, when the propeller blockage fault is not caused by the variable pitch driver, and the restarting frequency of the variable pitch driver exceeds the preset frequency, the restarting instruction of the variable pitch driver is not sent, the propeller blockage fault caused by the non-variable pitch driver is avoided, the variable pitch driver is restarted at high frequency, the aging condition of the variable pitch driver is accelerated, and the safety of the wind generating set can be improved.
In an embodiment of the present invention, when the variable pitch drive restart control apparatus 100 determines whether the current operation information of the wind turbine generator system meets the condition that the risk of the personnel can be avoided, the operation information may be determined according to a preset value of the risk avoidance flag. When the value of the risk avoidance flag bit is 1, the current condition that the human risk is met is represented, and when the value of the risk avoidance flag bit is 0, the current condition that the human risk is not met is represented.
In one embodiment of the present invention, the value of the risk avoiding flag is set to 0 when any one of the following conditions is satisfied.
Condition 1: the time length of the propeller clamping fault exceeds the preset time length.
Condition 2: the restarting times of the variable-pitch drive exceed the preset times.
Condition 3: the pitch controller performs a reset operation.
Condition 4: and the feathering of the blades is finished.
In an embodiment of the present invention, the method for restarting and controlling a pitch drive provided by the embodiment of the present invention may further include:
if the wind generating set is in a non-power generation state, an impeller of the wind generating set is not locked and a variable pitch driver fails, receiving a manual restarting instruction of a maintenance worker for the failed variable pitch driver;
and sending a variable pitch driver restarting instruction to a variable pitch controller corresponding to the variable pitch driver with the fault according to the manual restarting instruction, so that the variable pitch controller controls the variable pitch driver with the fault to restart according to the variable pitch driver restarting instruction.
It is understood that the wind park is in a non-generating state, the impeller of the wind park is not locked, and no maintenance personnel enter the hub. At the moment, if the variable pitch controller breaks down, maintenance personnel can manually control the variable pitch driver to restart.
For example, assume that # 3 pitch drive 303 fails. Maintenance personnel may manually restart control for the # 3 pitch drive 303. The pitch drive restarting control device 100 receives a manual restarting instruction of a maintenance person for the 3# pitch drive 303, then sends a pitch drive restarting instruction to the 3# pitch controller 203 according to the manual restarting instruction, and the 3# pitch controller 203 controls the 3# pitch drive 303 to restart according to the pitch drive restarting instruction.
According to the restarting control method for the variable pitch driver, provided by the embodiment of the invention, the maintenance personnel do not need to enter the hub to manually restart the variable pitch driver, so that the maintenance time can be saved, the maintenance cost can be shortened, and the loss of the generated energy caused by the overlong downtime of the wind generating set can be reduced.
Corresponding to the method embodiment, the embodiment of the invention also provides a restarting control device of the variable-pitch driver. As shown in fig. 3, fig. 3 is a schematic structural diagram of a pitch driver restart control device provided by an embodiment of the invention. The pitch drive restart control apparatus may include:
the first receiving module 311 is configured to receive the pitch parameter information sent by each pitch controller.
A determining module 312, configured to determine, according to the variable pitch parameter information, whether there is a blade-sticking fault of at least two blades in the wind turbine generator set currently.
And the judging module 313 is used for judging whether the current operation information of the wind power generation set meets the preset evasive condition of the personnel risk.
The sending module 314 is configured to send a variable pitch driver restart instruction to a variable pitch controller corresponding to a blade with a blade jamming fault if the wind turbine generator system currently has the blade jamming fault of at least two blades and the current operating information of the wind turbine generator system meets a preset personnel risk evasive condition, so that the variable pitch controller controls the variable pitch driver to restart according to the variable pitch driver restart instruction.
In an embodiment of the invention, the current operation information of the wind power generation set includes a time length of a propeller clamping fault, and the preset condition that the risk of personnel can be avoided includes: the failure time of the paddle clamping is within a preset time range; and/or the presence of a gas in the gas,
the operation information of the current wind power generation set comprises the restarting times of a variable pitch driver, and the preset personnel risk evaluable conditions comprise: restarting the variable-pitch driver for no more than a preset number of times; and/or the presence of a gas in the gas,
the operation information of the current wind power generation set comprises whether a variable pitch controller executes reset operation, and the preset personnel risk evaluable condition comprises the following steps: the pitch controller does not perform a reset operation; and/or the presence of a gas in the gas,
the operation information of the current wind power generation set comprises whether the feathering of the blades is finished, and the preset personnel risk evasive conditions comprise: the feathering of the blades is not completed.
In one embodiment of the invention, the pitch drive restart control apparatus may further comprise:
the second receiving module is used for receiving a manual restarting instruction of a maintenance worker for a pitch driver with a fault if the wind generating set is in a non-power generation state, an impeller of the wind generating set is not locked and the pitch driver has the fault;
the sending module 314 may further be configured to:
and sending a variable pitch driver restarting instruction to a variable pitch controller corresponding to the variable pitch driver with the fault according to the manual restarting instruction, so that the variable pitch controller controls the variable pitch driver with the fault to restart according to the variable pitch driver restarting instruction.
In an embodiment of the present invention, the determining module 313 may be specifically configured to:
if two pitch angles in the three pitch angles sent by the received pitch controller are smaller than the feathering angle, determining that at least two blades of the wind power generation set are blocked at present; alternatively, the first and second electrodes may be,
and if two of the three received variable pitch speeds sent by the variable pitch controller are smaller than feathering, determining that at least two blades of the wind power generation set have a blade clamping fault at present.
In one embodiment of the invention, the pitch drive restart control means may be provided in a main controller of the wind park.
According to the control device for restarting the variable-pitch driver, provided by the embodiment of the invention, when the operation information of the current wind power generation set meets the preset personnel risk evasive condition, the command for restarting the variable-pitch driver is sent to the variable-pitch controller, so that the personal safety of maintenance personnel can be ensured, the maintenance cost can be reduced, and the power generation loss can be reduced.
The embodiment of the invention also provides a wind generating set which comprises the variable-pitch driver restarting control device provided by the embodiment of the invention.
It is to be understood that the invention is not limited to the specific arrangements and instrumentality described above and shown in the drawings. A detailed description of known methods is omitted herein for the sake of brevity. In the above embodiments, several specific steps are described and shown as examples. However, the method processes of the present invention are not limited to the specific steps described and illustrated, and those skilled in the art can make various changes, modifications and additions or change the order between the steps after comprehending the spirit of the present invention.
The functional blocks shown in the above-described structural block diagrams may be implemented as hardware, software, firmware, or a combination thereof. When implemented in hardware, it may be, for example, an electronic circuit, an Application Specific Integrated Circuit (ASIC), suitable firmware, plug-in, function card, or the like. When implemented in software, the elements of the invention are the programs or code segments used to perform the required tasks. The program or code segments may be stored in a machine-readable medium or transmitted by a data signal carried in a carrier wave over a transmission medium or a communication link. A "machine-readable medium" may include any medium that can store or transfer information. Examples of a machine-readable medium include electronic circuits, semiconductor memory devices, ROM, flash memory, Erasable ROM (EROM), floppy disks, CD-ROMs, optical disks, hard disks, fiber optic media, Radio Frequency (RF) links, and so forth. The code segments may be downloaded via computer networks such as the internet, intranet, etc.
It should also be noted that the exemplary embodiments mentioned in this patent describe some methods or systems based on a series of steps or devices. However, the present invention is not limited to the order of the above-described steps, that is, the steps may be performed in the order mentioned in the embodiments, may be performed in an order different from the order in the embodiments, or may be performed simultaneously.
As described above, only the specific embodiments of the present invention are provided, and it can be clearly understood by those skilled in the art that, for convenience and brevity of description, the specific working processes of the system, the module and the unit described above may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again. It should be understood that the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive various equivalent modifications or substitutions within the technical scope of the present invention, and these modifications or substitutions should be covered within the scope of the present invention.
Claims (8)
1. A pitch drive restart control method, the method comprising:
receiving variable pitch parameter information sent by each variable pitch controller;
determining whether at least two blades of the wind power generation set have blade clamping faults at present according to the variable pitch parameter information;
judging whether the current operating information of the wind power generation set meets a preset personnel risk evaluable condition, wherein the personnel risk evaluable condition is a condition which does not endanger the personal safety of maintenance personnel;
if at least two blades of the wind generating set have blade jamming faults currently and the operation information of the current wind generating set meets the condition that the personnel risk can be avoided, sending a variable-pitch driver restarting instruction to a variable-pitch controller corresponding to the blade with the blade jamming faults, so that the variable-pitch controller controls the corresponding variable-pitch driver to restart according to the variable-pitch driver restarting instruction;
the operation information of the current wind power generation set is the time length of a propeller clamping fault, and the preset condition that the personnel risk can be avoided is as follows: the failure time of the paddle clamping is within a preset time range; and/or the presence of a gas in the gas,
the operation information of the current wind power generation set is the restarting times of a variable pitch driver, and the preset personnel risk evaluable condition is as follows: restarting the variable-pitch driver for no more than a preset number of times; and/or the presence of a gas in the gas,
the operation information of the current wind power generation set is whether a variable pitch controller executes reset operation, and the preset personnel risk evaluable condition is as follows: the pitch controller does not perform a reset operation; and/or the presence of a gas in the gas,
the operation information of the current wind power generation set is whether blade feathering is finished, and the preset personnel risk evaluable condition is as follows: the feathering of the blades is not completed.
2. The pitch drive restart control method of claim 1, further comprising:
if the wind generating set is in a non-power generation state, an impeller of the wind generating set is not locked and a variable pitch driver fails, receiving a manual restarting instruction of a maintenance worker for the failed variable pitch driver;
and sending a variable pitch drive restarting instruction to a variable pitch controller corresponding to the variable pitch drive with the fault according to the manual restarting instruction, so that the variable pitch controller controls the variable pitch drive with the fault to restart according to the variable pitch drive restarting instruction.
3. The method for restarting and controlling the pitch drive according to claim 2, wherein the determining whether at least two blades of the wind power generation group are currently stuck according to the pitch parameter information includes:
if two pitch angles in the three pitch angles sent by the received pitch controller are smaller than the feathering angle, determining that at least two blades of the wind power generation set are blocked at present; alternatively, the first and second electrodes may be,
and if two of the three received variable pitch speeds sent by the variable pitch controller are smaller than the feathering speed, determining that at least two blades of the wind power generation set have a blade clamping fault at present.
4. A pitch drive restart control apparatus, comprising:
the first receiving module is used for receiving variable pitch parameter information sent by each variable pitch controller;
the determining module is used for determining whether the wind power generation set has at least two blades which are blocked according to the variable pitch parameter information;
the judgment module is used for judging whether the current operation information of the wind power generation set meets a preset personnel risk evasive condition, wherein the personnel risk evasive condition is a condition which does not endanger the personal safety of maintenance personnel;
the transmission module is used for transmitting a variable pitch driver restarting instruction to a variable pitch controller corresponding to the blade with the jammed blade if the wind generating set has at least two blades with jammed blade faults and the current operating information of the wind generating set meets the preset personnel risk evaluable condition, so that the variable pitch controller controls the variable pitch driver to restart according to the variable pitch driver restarting instruction;
the operation information of the current wind power generation set is the time length of a propeller clamping fault, and the preset condition that the personnel risk can be avoided is as follows: the failure time of the paddle clamping is within a preset time range; and/or the presence of a gas in the gas,
the operation information of the current wind power generation set is the restarting times of a variable pitch driver, and the preset personnel risk evaluable condition is as follows: restarting the variable-pitch driver for no more than a preset number of times; and/or the presence of a gas in the gas,
the operation information of the current wind power generation set is whether a variable pitch controller executes reset operation, and the preset personnel risk evaluable condition is as follows: the pitch controller does not perform a reset operation; and/or the presence of a gas in the gas,
the operation information of the current wind power generation set is whether blade feathering is finished, and the preset personnel risk evaluable condition is as follows: the feathering of the blades is not completed.
5. The pitch drive restart control apparatus of claim 4, further comprising:
the second receiving module is used for receiving a manual restarting instruction of a maintenance worker for a pitch driver with a fault if the wind generating set is in a non-power generation state, an impeller of the wind generating set is not locked and the pitch driver has the fault;
the sending module is further configured to:
and sending a variable pitch drive restarting instruction to a variable pitch controller corresponding to the variable pitch drive with the fault according to the manual restarting instruction, so that the variable pitch controller controls the variable pitch drive with the fault to restart according to the variable pitch drive restarting instruction.
6. The pitch drive restart control apparatus according to claim 5, wherein the determining module is specifically configured to:
if two pitch angles in the three pitch angles sent by the received pitch controller are smaller than the feathering angle, determining that at least two blades of the wind power generation set are blocked at present; alternatively, the first and second electrodes may be,
and if two of the three received variable pitch speeds sent by the variable pitch controller are smaller than the feathering speed, determining that at least two blades of the wind power generation set have a blade clamping fault at present.
7. The pitch driver restart control of claim 6 wherein the pitch driver restart control is provided in a main controller of a wind turbine generator set.
8. A wind power plant comprising a pitch driver restart control apparatus according to any of claims 4 to 7.
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| CN113236485B (en) * | 2021-05-26 | 2022-06-21 | 李晓程 | Control method and control system for improving wind energy utilization rate of wind turbine generator |
| CN114645819B (en) * | 2022-05-19 | 2022-09-13 | 东方电气风电股份有限公司 | Wind power pitch control method, device and system and storage medium |
| CN117189520A (en) * | 2022-05-31 | 2023-12-08 | 金风科技股份有限公司 | Maintenance method, device and equipment of wind generating set |
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