An operation and maintenance method and system for offshore wind power equipment

Abstract

A method for operating and maintaining offshore wind power equipment comprises: dividing an area where power generation equipment is arranged to generate a plurality of wind farm areas, each wind farm area including all wind power equipment in the area; establishing a power feature comparison library according to the power generation characteristics of all wind power equipment between each wind farm area; acquiring the power generation power of the wind power equipment in real time, and comparing it with the preset power generation power recorded in the power feature comparison library to evaluate the operation quality of the wind power equipment and generate an operation quality value; determining the inspection intensity of the wind power equipment according to the operation quality value; improving the efficiency of the inspection process, reducing the time consumption of ineffective inspections, and promoting the efficient and lower-cost operation of offshore wind power equipment.

Description

Technical Field

[0001] The present invention relates to the technical field of offshore wind power equipment maintenance, and in particular to an operation and maintenance method and system for offshore wind power equipment. Background Art

[0002] With the increasing depletion of energy and the increasing pollution, renewable energy and clean energy are receiving more and more attention. Wind power generation, or wind power generation, is a clean renewable energy source, and the operating cost of wind power equipment is low. Therefore, wind power equipment is an important part of the wind power industry and the foundation and guarantee for the development of the wind power industry.

[0003] Wind power equipment is a complex system with high technical content, involving multiple disciplines such as materials, electrical, mechanical, control, and communications. Wind power equipment includes high and low voltage electrical devices, high and low speed rotating mechanical devices, intelligent control devices, fasteners, structural parts, wires and cables, communication cables and other components. The internal operating conditions of wind power equipment are relatively complex, and the external environment also has a great impact on the operation of wind power equipment. Therefore, the safe and stable operation of wind power equipment cannot be separated from reasonable maintenance.

[0004] Unlike the maintenance of wind turbines deployed on land, the maintenance of wind turbines deployed at sea is relatively more difficult and time-consuming. Therefore, the daily inspection and maintenance strategies of wind turbines need to be reasonably configured to determine the inspection intensity of different wind turbines, so that offshore wind turbines can produce electricity in a more efficient, low-cost and stable manner. Summary of the invention

[0005] The object of the present invention is to provide an operation and maintenance method and system capable of configuring maintenance strategies for offshore wind power equipment.

[0006] Therefore, the present invention discloses an operation and maintenance method for offshore wind power equipment, comprising:

[0007] Divide the area where the power generation equipment is arranged to generate a number of wind farm areas, each of which contains all the wind power equipment in the area;

[0008] According to the power generation characteristics of all wind power equipment in each wind farm area, a power characteristic comparison library is established;

[0009] Acquire the power generation of the wind power equipment in real time, and compare it with the preset power generation recorded in the power characteristic comparison library, so as to evaluate the operation quality of the wind power equipment and generate an operation quality value;

[0010] The inspection intensity of the wind power equipment is determined according to the operation quality value.

[0011] In some embodiments of the present application, a method for establishing a power feature comparison library is disclosed. The method for establishing a power feature comparison library includes:

[0012] The wind volume throughout the year is determined, and the power generation of the wind power equipment under different wind volume conditions is obtained to generate a preset power generation curve, and the preset power generation curve is divided according to different wind volume conditions.

[0013] In some embodiments of the present application, in order to evaluate the operating status of a wind power device, a specific method of using a power feature comparison library is disclosed. The method for evaluating the quality of a wind power device includes:

[0014] Acquire the power generation of all wind power equipment in the same wind farm area in real time, generate real-time power generation curves respectively, and compare them with the power characteristic comparison library, and determine the power generation curve comparison group that best matches the performance of all wind power equipment at present from the power characteristic comparison library;

[0015] According to the power generation curve control group, the deviation of each real-time power generation curve is analyzed and calculated, and according to the deviation, the operation quality of the corresponding wind power equipment is evaluated.

[0016] In some embodiments of the present application, in order to quantitatively distinguish the operation quality of wind power equipment, a method for generating an operation quality value is disclosed. The method for generating an operation quality value includes:

[0017] Set the power generation curve deviation corresponding group A [A1, A2, A3, ..., A n ], where A1 is the first preset deviation value, A2 is the second preset deviation value, A3 is the third preset deviation value, A n is the nth preset deviation value, and A1<A2<A3<…<A n ;

[0018] Set the operation quality value corresponding to group B [B1, B2, B3, ..., B n ], where B1 is the first preset running quality value, B2 is the second preset quality value, B3 is the third preset quality value, B n is the nth preset quality value, and B1<B2<B3<…<B n ;

[0019] Obtain a real-time power generation curve of a power generation device and a preset power generation curve corresponding to a group of the power generation curves, and within the same time period, intercept a number of power generation values ​​at points corresponding to the real-time power generation curve and the preset power generation curve, respectively, wherein the power generation value intercepted on the real-time power generation curve is the real-time power generation value, and the power generation value intercepted on the preset power generation curve is the preset power generation value, and the sum of the real-time power generation values ​​within the same time period is subtracted from the sum of the preset power generation values, and the absolute value of the difference is obtained, and the absolute value of the difference is determined as the real-time deviation value a;

[0020] If a≤A1, the first preset operation quality value B1 is determined as the operation quality value B0 of the wind power equipment;

[0021] If A1<a≤A2, the second preset operation quality value B2 is determined as the operation quality value B0 of the wind power equipment;

[0022] If A2<a≤A3, the third preset operation quality value B3 is determined as the operation quality value B0 of the wind power equipment;

[0023] …;

[0024] If A n-1 <a≤A n , then the nth preset operation quality value B n Determined as the operating quality value B0 of the wind power equipment.

[0025] In some embodiments of the present application, in order to more accurately formulate a maintenance strategy for wind power equipment, the operation and maintenance method is improved, and the operation and maintenance method further includes:

[0026] Obtain the operating status of each component of wind power equipment;

[0027] According to the importance of each component of the wind power equipment, a maintenance priority value is set respectively;

[0028] According to the operating status of each component of the wind power equipment, the maintenance priority value of the corresponding component is modified;

[0029] According to the maintenance priority values ​​of the components of the wind power equipment, the maintenance priority order of the components of the wind power equipment is determined.

[0030] In some embodiments of the present application, the operating status of each component of the wind power equipment is disclosed, and the operating status of each component of the wind power equipment includes: normal operating status, normal operating status without maintenance, fault operating status and stopped operating status;

[0031] Among them, the normal operation state, the fault operation state and the stop operation state are determined according to the sensor device on the wind power equipment;

[0032] If it is determined that the operating state of the component is the normal operating state and the maintenance is overtime, the operating state of the component is determined to be the maintenance-deficient normal operating state.

[0033] In some embodiments of the present application, in order to perform parameter correction on the maintenance priority value so that the maintenance priority value more accurately expresses the maintenance order between wind power equipment, a method for performing parameter correction on the maintenance priority value is disclosed. The method for performing parameter correction on the maintenance priority value includes:

[0034] The maintenance priority value corresponding group C [C1, C2, C3, ..., C n ], where C1 is the first preset priority value, C2 is the second preset priority value, C3 is the third preset priority value, and C n is the nth preset priority value, and C1<C2<C3<…<C n ;

[0035] The correction coefficient of normal operation is set to 1, the correction parameter of normal operation without maintenance is set to K1, the correction coefficient of fault operation is set to K2, and 1<K1<K2;

[0036] When the maintenance priority value is C1, if the component is in normal operation, the corrected maintenance priority value is 1*C1; if the component is in maintenance-deficient operation, the corrected maintenance priority value is K1*C1; if the component is in faulty operation, the corrected maintenance priority value is K2*C1; if the component is in stopped operation, the maintenance priority value reaches the maximum value;

[0037] When the maintenance priority value is C2, if the component is in normal operation, the corrected maintenance priority value is 1*C2; if the component is in maintenance-deficient operation, the corrected maintenance priority value is K1*C2; if the component is in faulty operation, the corrected maintenance priority value is K2*C2; if the component is in stopped operation, the maintenance priority value reaches the maximum value;

[0038] When the maintenance priority value is C3, if the component is in normal operation, the corrected maintenance priority value is 1*C3; if the component is in maintenance-deficient operation, the corrected maintenance priority value is K1*C3; if the component is in faulty operation, the corrected maintenance priority value is K2*C3; if the component is in stopped operation, the maintenance priority value reaches the maximum value;

[0039] …;

[0040] When the maintenance priority value is C nIf the component is in normal operation, the corrected maintenance priority value is 1*C n If the component is in a maintenance-free operation state, the corrected maintenance priority value is K1*C n If the component is in a faulty operating state, the corrected maintenance priority value is K2*C n , if the component is in a stopped state, the maintenance priority value reaches the maximum value.

[0041] In some embodiments of the present application, in order to be able to correct the inspection intensity, the operation and maintenance method is improved, and the operation and maintenance method further includes:

[0042] The maintenance priority values ​​of all components of the same wind power equipment are summed to obtain the equipment maintenance priority value, and the inspection intensity is corrected according to the equipment maintenance priority value.

[0043] In some embodiments of the present application, a specific method for correcting the inspection intensity is disclosed. The method for correcting the inspection intensity includes:

[0044] Set the inspection frequency corresponding to group T [T1, T2, T3, ..., T n ], where T1 is the first inspection frequency, T2 is the second inspection frequency, T3 is the third inspection frequency, T n is the nth inspection frequency, and T1, T2, T3, ..., T n The inspection frequency is determined according to different operation quality values, and T1<T2<T3<…<T n ;

[0045] Set the equipment maintenance priority value corresponding to group Y [Y1, Y2, Y3, ..., Y n ], where Y1 is the first preset device maintenance priority value, where Y2 is the second preset device maintenance priority value, where Y3 is the third preset device maintenance priority value, where Y n Maintain the priority value for the nth preset device, and Y1<Y2<Y3<…<Y n ;

[0046] Set the inspection frequency correction coefficient corresponding to group R [R1, R2, R3, ..., R n ], where R1 is the first preset inspection correction coefficient, where R2 is the second preset inspection correction coefficient, where R3 is the preset inspection correction coefficient, where R n is the nth preset inspection correction coefficient, and R1<R2<R3<…<R n ;

[0047] Analyze and calculate to obtain the equipment maintenance priority value y;

[0048] If y≤Y1, the inspection frequency is corrected to R1*T1;

[0049] If Y1<y≤Y2, the inspection frequency is corrected to R2*T2;

[0050] If Y2<y≤Y3, the inspection frequency is corrected to R3*T3;

[0051] …;

[0052] If Y n-1 <y≤Y n , then the inspection frequency is corrected to R n *T n .

[0053] In some embodiments of the present application, an operation and maintenance system for offshore wind power equipment is also disclosed, including:

[0054] A regional division unit is used to divide the area where the power generation equipment is arranged into regions. The regional division methods include division based on wind farm characteristics and division based on area scale;

[0055] A power generation acquisition unit is used to acquire the power generation of the wind power equipment, analyze and determine the power generation characteristics, and establish a power characteristic comparison library, which includes a number of preset power generation curves under different wind volume conditions;

[0056] An evaluation unit, used to convert the real-time power generation acquired by the power generation acquisition unit into a real-time power generation curve, and determine the power generation curve control group that best meets the performance of all wind power equipment at present in the power feature comparison library, analyze and calculate the deviation of each real-time power generation curve by comparison, and evaluate the operation quality of the corresponding wind power equipment according to the deviation, and determine the inspection intensity of the wind power equipment according to the evaluation result;

[0057] A maintenance sequence analysis unit, used to set maintenance priority values ​​for components of the wind power equipment and determine a maintenance priority sequence according to the maintenance priority values;

[0058] An operating status analysis unit, used to analyze the operating status of each component of the wind power equipment;

[0059] The parameter correction unit is used to correct the maintenance priority value of the component according to the operating status of the component of the wind power equipment, and sum the maintenance priority values ​​of all components of the same equipment to obtain the equipment maintenance priority value, and correct the inspection intensity of the wind power equipment according to the equipment maintenance priority value.

[0060] The present application discloses an operation and maintenance method for offshore wind power equipment, which is used to formulate a maintenance strategy for offshore wind power equipment and has the following advantages:

[0061] 1. Divide the areas where power generation equipment is arranged, and record the power generation characteristics of wind power equipment in the same area, so as to obtain the power generation characteristics of all wind power equipment under normal operation, and establish a power characteristic comparison library. The power characteristic comparison library established by the above means can more accurately feedback the normal operating status of wind power equipment in daily work, and thus provide a prerequisite for the subsequent accurate judgment of whether there is abnormal operation of wind power equipment.

[0062] 2. Obtain the power generation of wind power equipment in real time, and compare the power generation power obtained in real time with the power characteristic reference library. According to the comparison results, evaluate the operation quality of wind power equipment and generate an operation quality value. According to the operation quality value, distinguish the wind turbine equipment with good or bad overall operation status, and then determine the inspection intensity of wind power equipment, which improves the efficiency of the inspection process and reduces the time consumption of invalid inspections.

[0063] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0064] Figure 1 This is a step diagram of an operation and maintenance method for offshore wind power equipment in an embodiment of the present application;

[0065] Figure 2 A diagram showing the steps of a method for quality assessment of wind power equipment in an embodiment of the present application;

[0066] Figure 3 This is a structural diagram of an operation and maintenance system for offshore wind power equipment in an embodiment of the present application. DETAILED DESCRIPTION

[0067] The technical solution of the present invention is further described below through the accompanying drawings and embodiments.

[0068] Unless otherwise defined, the technical terms or scientific terms used in the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0069] Example:

[0070] Wind power equipment is a complex system with high technical content, involving multiple disciplines such as materials, electrical, mechanical, control, and communications. Wind power equipment includes high and low voltage electrical devices, high and low speed rotating mechanical devices, intelligent control devices, fasteners, structural parts, wires and cables, communication cables and other components. The internal operating conditions of wind power equipment are relatively complex, and the external environment also has a great impact on the operation of wind power equipment. Therefore, the safe and stable operation of wind power equipment cannot be separated from reasonable maintenance.

[0071] Unlike the maintenance of wind turbines deployed on land, the maintenance of wind turbines deployed at sea is relatively more difficult, so the daily inspection and maintenance strategies of wind turbines need to be reasonably configured to enable offshore wind turbines to produce electricity in a more efficient, low-cost and stable manner.

[0072] The object of the present invention is to provide an operation and maintenance method and system capable of configuring maintenance strategies for offshore wind power equipment.

[0073] Therefore, the present invention discloses an operation and maintenance method for offshore wind power equipment, comprising:

[0074] Step S100 , dividing the area where the power generation equipment is arranged into regions to generate a plurality of wind farm areas, each of which includes all the wind power equipment in the area.

[0075] When dividing areas, you can divide them according to the wind volume characteristics, so that the wind volume in the same area is relatively consistent.

[0076] Step S200: establishing a power characteristic comparison library according to the power generation characteristics of all wind power equipment in each wind farm area.

[0077] In some embodiments of the present application, a method for establishing a power characteristic reference library is disclosed, and the method for establishing a power characteristic reference library includes: determining the wind volume throughout the year, and obtaining the power generation power of the wind power equipment under different wind volume conditions to generate a preset power generation power curve, and dividing the preset power generation power curve according to different wind volume conditions.

[0078] Step S300, acquiring the power generation of the wind power equipment in real time, and comparing it with the preset power generation recorded in the power characteristic comparison library, so as to evaluate the operation quality of the wind power equipment and generate an operation quality value.

[0079] The operation quality is an evaluation of the overall operation status of the wind power equipment. The higher the operation quality value, the healthier the operation status of the wind power equipment. When estimating the operation quality value, the valuation rules can be set based on expert experience or actual laws.

[0080] In some embodiments of the present application, in order to evaluate the operating status of a wind power device, a specific method of using a power feature comparison library is disclosed. The method for evaluating the quality of a wind power device includes:

[0081] Step S301, obtaining the power generation power of all wind power equipment in the same wind farm area in real time, and generating real-time power generation curves respectively, and comparing them with the power feature reference library, and determining the power generation curve control group that best matches the performance of all current wind power equipment from the power feature reference library.

[0082] Step S302: Analyze and calculate the deviation of each real-time power generation curve according to the power generation curve control group, and perform an operation quality assessment on the corresponding wind power equipment according to the deviation.

[0083] Step S400: determining the inspection intensity of the wind power equipment according to the operation quality value.

[0084] In some embodiments of the present application, in order to quantitatively distinguish the operation quality of wind power equipment, a method for generating an operation quality value is disclosed. The method for generating an operation quality value includes:

[0085] The first step is to set the power generation curve deviation corresponding group A [A1, A2, A3, ..., A n ], where A1 is the first preset deviation value, A2 is the second preset deviation value, A3 is the third preset deviation value, A n is the nth preset deviation value, and A1<A2<A3<…<A n ;

[0086] The second step is to set the operation quality value corresponding to group B [B1, B2, B3, ..., B n ], where B1 is the first preset running quality value, B2 is the second preset quality value, B3 is the third preset quality value, B n is the nth preset quality value, and B1<B2<B3<…<B n ;

[0087] The third step is to obtain the real-time power generation curve of the power generation equipment and the preset power generation curve corresponding to the group of the power generation curve, and in the same time period, intercept several power generation values ​​at the points corresponding to the real-time power generation curve and the preset power generation curve, respectively, wherein the power generation value intercepted on the real-time power generation curve is the real-time power generation value, and the power generation value intercepted on the preset power generation curve is the preset power generation value, and the sum of the real-time power generation values ​​in the same time period is subtracted from the sum of the preset power generation values, the absolute value of the difference is obtained, and the absolute value of the difference is determined as the real-time deviation value a.

[0088] The fourth step is to judge the running quality value:

[0089] If a≤A1, the first preset operation quality value B1 is determined as the operation quality value B0 of the wind power equipment;

[0090] If A1<a≤A2, the second preset operation quality value B2 is determined as the operation quality value B0 of the wind power equipment;

[0091] If A2<a≤A3, the third preset operation quality value B3 is determined as the operation quality value B0 of the wind power equipment;

[0092] …;

[0093] If A n-1 <a≤A n , then the nth preset operation quality value B n Determined as the operating quality value B0 of the wind power equipment.

[0094] In some embodiments of the present application, in order to more accurately formulate a maintenance strategy for wind power equipment, the operation and maintenance method is improved, and the operation and maintenance method further includes:

[0095] The first step is to obtain the operating status of each component of the wind power equipment.

[0096] In the second step, maintenance priority values ​​are set according to the importance of each component of the wind power equipment.

[0097] The third step is to modify the maintenance priority values ​​of the corresponding components according to the operating status of the components of the wind power equipment.

[0098] The fourth step is to determine the maintenance priority of each component of the wind power equipment according to the maintenance priority value of each component of the wind power equipment.

[0099] When setting maintenance priority values ​​for different accessories of wind power equipment, the importance of the component to the overall operation should be considered from the perspectives of safety, operational stability, and production capacity effect.

[0100] In some embodiments of the present application, the operating status of each component of the wind power equipment is disclosed, and the operating status of each component of the wind power equipment includes: normal operating status, normal operating status without maintenance, faulty operating status and stopped operating status.

[0101] Among them, the normal operation state, the fault operation state and the stop operation state are determined according to the sensor device on the wind power equipment.

[0102] If it is determined that the operating state of the component is the normal operating state and the maintenance is overtime, the operating state of the component is determined to be the maintenance-deficient normal operating state.

[0103] In some embodiments of the present application, in order to perform parameter correction on the maintenance priority value so that the maintenance priority value more accurately expresses the maintenance order between wind power equipment, a method for performing parameter correction on the maintenance priority value is disclosed. The method for performing parameter correction on the maintenance priority value includes:

[0104] The first step is to set the maintenance priority value corresponding group C [C1, C2, C3, ..., C n ], where C1 is the first preset priority value, C2 is the second preset priority value, C3 is the third preset priority value, and C n is the nth preset priority value, and C1<C2<C3<…<C n ;

[0105] The second step is to set the correction coefficient of the normal operation state to 1, the correction parameter of the normal operation state without maintenance to K1, the correction coefficient of the fault operation state to K2, and 1<K1<K2;

[0106] The third step is to modify the maintenance priority value.

[0107] When the maintenance priority value is C1, if the component is in normal operation, the corrected maintenance priority value is 1*C1; if the component is in maintenance-deficient operation, the corrected maintenance priority value is K1*C1; if the component is in faulty operation, the corrected maintenance priority value is K2*C1; if the component is in stopped operation, the maintenance priority value reaches the maximum value;

[0108] When the maintenance priority value is C2, if the component is in normal operation, the corrected maintenance priority value is 1*C2; if the component is in maintenance-deficient operation, the corrected maintenance priority value is K1*C2; if the component is in faulty operation, the corrected maintenance priority value is K2*C2; if the component is in stopped operation, the maintenance priority value reaches the maximum value;

[0109] When the maintenance priority value is C3, if the component is in normal operation, the corrected maintenance priority value is 1*C3; if the component is in maintenance-deficient operation, the corrected maintenance priority value is K1*C3; if the component is in faulty operation, the corrected maintenance priority value is K2*C3; if the component is in stopped operation, the maintenance priority value reaches the maximum value;

[0110] …;

[0111] When the maintenance priority value is C n If the component is in normal operation, the corrected maintenance priority value is 1*C n If the component is in a maintenance-free operation state, the corrected maintenance priority value is K1*C n If the component is in a faulty operating state, the corrected maintenance priority value is K2*C n , if the component is in a stopped state, the maintenance priority value reaches the maximum value.

[0112] In some embodiments of the present application, in order to be able to correct the inspection intensity, the operation and maintenance method is improved, and the operation and maintenance method also includes: summing the maintenance priority values ​​of all components of the same wind power equipment to obtain the equipment maintenance priority value, and correcting the inspection intensity according to the equipment maintenance priority value.

[0113] In some embodiments of the present application, a specific method for correcting the inspection intensity is disclosed. The method for correcting the inspection intensity includes:

[0114] The first step is to set the inspection frequency corresponding group T [T1, T2, T3, ..., T n ], where T1 is the first inspection frequency, T2 is the second inspection frequency, T3 is the third inspection frequency, T n is the nth inspection frequency, and T1, T2, T3, ..., T n The inspection frequency is determined according to different operation quality values, and T1<T2<T3<…<T n ;

[0115] The second step is to set the equipment maintenance priority value corresponding to group Y [Y1, Y2, Y3, ..., Y n ], where Y1 is the first preset device maintenance priority value, where Y2 is the second preset device maintenance priority value, where Y3 is the third preset device maintenance priority value, where Y n Maintain the priority value for the nth preset device, and Y1<Y2<Y3<…<Y n ;

[0116] The third step is to set the inspection frequency correction coefficient corresponding to the group R [R1, R2, R3, ..., R n], where R1 is the first preset inspection correction coefficient, where R2 is the second preset inspection correction coefficient, where R3 is the preset inspection correction coefficient, where R n is the nth preset inspection correction coefficient, and R1<R2<R3<…<R n ;

[0117] The fourth step is to analyze and calculate the equipment maintenance priority value y.

[0118] The fifth time, the number of inspections was revised.

[0119] If y≤Y1, the inspection frequency is corrected to R1*T1;

[0120] If Y1<y≤Y2, the inspection frequency is corrected to R2*T2;

[0121] If Y2<y≤Y3, the inspection frequency is corrected to R3*T3;

[0122] …;

[0123] If Y n-1 <y≤Y n , then the inspection frequency is corrected to R n *T n .

[0124] In some embodiments of the present application, an operation and maintenance system for offshore wind power equipment is also disclosed, including a region division unit, a power generation acquisition unit, an evaluation unit, a maintenance sequence analysis unit, an operation status analysis unit and a parameter correction unit.

[0125] The area division unit is used to divide the area where the power generation equipment is arranged into regions, and the area division methods include division based on wind farm characteristics and division based on area scale.

[0126] The power generation acquisition unit is used to acquire the power generation of the wind power equipment, analyze and determine the power generation characteristics, and establish a power characteristic comparison library, which includes preset power generation curves under several different wind volume conditions.

[0127] The evaluation unit is used to convert the real-time power generation obtained by the power generation acquisition unit into a real-time power generation curve, and determine the power generation curve control group that best meets the performance of all current wind power equipment in the power feature comparison library, analyze and calculate the deviation of each real-time power generation curve through comparison, and evaluate the operation quality of the corresponding wind power equipment based on the deviation, and determine the inspection intensity of the wind power equipment based on the evaluation result.

[0128] The maintenance sequence analysis unit is used to set maintenance priority values ​​for components of the wind power equipment and determine the maintenance priority sequence according to the maintenance priority values.

[0129] The operating status analysis unit is used to analyze the operating status of the components of each wind power plant.

[0130] The parameter correction unit is used to correct the maintenance priority value of the component according to the operating status of the component of the wind power equipment, and sum the maintenance priority values ​​of all components of the same equipment to obtain the equipment maintenance priority value, and correct the inspection intensity of the wind power equipment according to the equipment maintenance priority value.

[0131] The present application discloses an operation and maintenance method for offshore wind power equipment, which is used to formulate a maintenance strategy for offshore wind power equipment and has the following advantages:

[0132] 1. Divide the areas where power generation equipment is arranged, and record the power generation characteristics of wind power equipment in the same area, so as to obtain the power generation characteristics of all wind power equipment under normal operation, and establish a power characteristic comparison library. The power characteristic comparison library established by the above means can more accurately feedback the normal operating status of wind power equipment in daily work, and thus provide a prerequisite for the subsequent accurate judgment of whether there is abnormal operation of wind power equipment.

[0133] 2. Obtain the power generation of wind power equipment in real time, and compare the power generation power obtained in real time with the power characteristic reference library. According to the comparison results, evaluate the operation quality of wind power equipment and generate an operation quality value. According to the operation quality value, distinguish the wind turbine equipment with good or bad overall operation status, and then determine the inspection intensity of wind power equipment, which improves the efficiency of the inspection process and reduces the time consumption of invalid inspections.

[0134] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that they can still modify or replace the technical solution of the present invention with equivalents, and these modifications or equivalent replacements cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of the present invention.

Claims

1. An operation and maintenance method for offshore wind power equipment, characterized in that: include: Divide the area where the power generation equipment is arranged to generate a number of wind farm areas, each of which contains all the wind power equipment in the area; According to the power generation characteristics of all wind power equipment in each wind farm area, a power characteristic comparison library is established; Acquire the power generation of the wind power equipment in real time, and compare it with the preset power generation recorded in the power characteristic comparison library, so as to evaluate the operation quality of the wind power equipment and generate an operation quality value; Determining the inspection intensity of the wind power equipment according to the operation quality value; Methods for establishing a power characteristic reference library include: Determine the annual wind volume, and obtain the power generation of wind power equipment under different wind volume conditions to generate a preset power generation curve, and divide the preset power generation curve into different wind volume conditions; Methods for quality assessment of wind power equipment include: Acquire the power generation of all wind power equipment in the same wind farm area in real time, generate real-time power generation curves respectively, and compare them with the power characteristic comparison library, and determine the power generation curve comparison group that best matches the performance of all wind power equipment at present from the power characteristic comparison library; According to the power generation curve control group, analyzing and calculating the deviation of each real-time power generation curve, and performing an operation quality assessment on the corresponding wind power equipment according to the deviation; Methods for generating operational quality values ​​include: Set the power generation curve deviation corresponding group A [A1, A2, A3, ..., A n ], where A1 is the first preset deviation value, A2 is the second preset deviation value, A3 is the third preset deviation value, A n is the nth preset deviation value, and A1<A2<A3<…<A n ; Set the operation quality value corresponding to group B [B1, B2, B3, ..., B n ], where B1 is the first preset running quality value, B2 is the second preset quality value, B3 is the third preset quality value, B n is the nth preset quality value, and B1<B2<B3<…<B n ; Obtain a real-time power generation curve of a power generation device and a preset power generation curve corresponding to a group of the power generation curves, and within the same time period, intercept a number of power generation values ​​at points corresponding to the real-time power generation curve and the preset power generation curve, respectively, wherein the power generation value intercepted on the real-time power generation curve is the real-time power generation value, and the power generation value intercepted on the preset power generation curve is the preset power generation value, and the sum of the real-time power generation values ​​within the same time period is subtracted from the sum of the preset power generation values, and the absolute value of the difference is obtained, and the absolute value of the difference is determined as the real-time deviation value a; If a≤A1, the first preset operation quality value B1 is determined as the operation quality value B0 of the wind power equipment; If A1<a≤A2, the second preset operation quality value B2 is determined as the operation quality value B0 of the wind power equipment; If A2<a≤A3, the third preset operation quality value B3 is determined as the operation quality value B0 of the wind power equipment; …； If A n-1 <a≤A n , then the nth preset operation quality value B n Determined as the operating quality value B0 of the wind power equipment.

2. The operation and maintenance method of an offshore wind power equipment according to claim 1, characterized in that: The operation and maintenance method further includes: Obtain the operating status of each component of wind power equipment; According to the importance of each component of the wind power equipment, a maintenance priority value is set respectively; According to the operating status of each component of the wind power equipment, the maintenance priority value of the corresponding component is modified; According to the maintenance priority values ​​of the components of the wind power equipment, the maintenance priority order of the components of the wind power equipment is determined.

3. The operation and maintenance method of an offshore wind power equipment according to claim 2, characterized in that: The operating status of each component of the wind power equipment includes: normal operating status, normal operating status without maintenance, fault operating status and stopped operating status; Among them, the normal operation state, the fault operation state and the stop operation state are determined according to the sensor device on the wind power equipment; If it is determined that the operating state of the component is the normal operating state and the maintenance is overtime, the operating state of the component is determined to be the maintenance-deficient normal operating state.

4. The operation and maintenance method of an offshore wind power equipment according to claim 3, characterized in that: Methods for modifying parameters of maintenance priority values ​​include: The maintenance priority value corresponding group C [C1, C2, C3, ..., C n ], where C1 is the first preset priority value, C2 is the second preset priority value, C3 is the third preset priority value, and C n is the nth preset priority value, and C1<C2<C3<…<C n ; The correction coefficient of normal operation is set to 1, the correction parameter of normal operation without maintenance is set to K1, the correction coefficient of fault operation is set to K2, and 1<K1<K2; When the maintenance priority value is C1, if the component is in normal operation, the corrected maintenance priority value is 1*C1; if the component is in maintenance-deficient operation, the corrected maintenance priority value is K1*C1; if the component is in faulty operation, the corrected maintenance priority value is K2*C1; if the component is in stopped operation, the maintenance priority value reaches the maximum value; When the maintenance priority value is C2, if the component is in normal operation, the corrected maintenance priority value is 1*C2; if the component is in maintenance-deficient operation, the corrected maintenance priority value is K1*C2; if the component is in faulty operation, the corrected maintenance priority value is K2*C2; if the component is in stopped operation, the maintenance priority value reaches the maximum value; When the maintenance priority value is C3, if the component is in normal operation, the corrected maintenance priority value is 1*C3; if the component is in maintenance-deficient operation, the corrected maintenance priority value is K1*C3; if the component is in faulty operation, the corrected maintenance priority value is K2*C3; if the component is in stopped operation, the maintenance priority value reaches the maximum value; …； When the maintenance priority value is C n If the component is in normal operation, the corrected maintenance priority value is 1*C n If the component is in a maintenance-free operation state, the corrected maintenance priority value is K1*C n If the component is in a faulty operating state, the corrected maintenance priority value is K2*C n , if the component is in a stopped state, the maintenance priority value reaches the maximum value.

5. The operation and maintenance method of an offshore wind power equipment according to claim 4, characterized in that: The operation and maintenance method further includes: The maintenance priority values ​​of all components of the same wind power equipment are summed to obtain the equipment maintenance priority value, and the inspection intensity is corrected according to the equipment maintenance priority value.

6. The operation and maintenance method of an offshore wind power equipment according to claim 5, characterized in that: Methods for correcting inspection intensity include: Set the inspection frequency corresponding to group T [T1, T2, T3, ..., T n ], where T1 is the first inspection frequency, T2 is the second inspection frequency, T3 is the third inspection frequency, T n is the nth inspection frequency, and T1, T2, T3, ..., T n The inspection frequency is determined according to different operation quality values, and T1<T2<T3<…<T n ; Set the equipment maintenance priority value corresponding to group Y [Y1, Y2, Y3, ..., Y n ], where Y1 is the first preset device maintenance priority value, where Y2 is the second preset device maintenance priority value, where Y3 is the third preset device maintenance priority value, where Y n Maintain the priority value for the nth preset device, and Y1<Y2<Y3<…<Y n ; Set the inspection frequency correction coefficient corresponding to group R [R1, R2, R3, ..., R n ], where R1 is the first preset inspection correction coefficient, where R2 is the second preset inspection correction coefficient, where R3 is the preset inspection correction coefficient, where R n is the nth preset inspection correction coefficient, and R1<R2<R3<…<R n ; Analyze and calculate to obtain the equipment maintenance priority value y; If y≤Y1, the inspection frequency is corrected to R1*T1; If Y1<y≤Y2, the inspection frequency is corrected to R2*T2; If Y2<y≤Y3, the inspection frequency is corrected to R3*T3; …； If Y n-1 <y≤Y n , then the inspection frequency is corrected to R n *T n .

7. An operation and maintenance system for offshore wind power equipment, used to execute an operation and maintenance method for offshore wind power equipment according to any one of claims 1 to 6, characterized in that: include: A regional division unit is used to divide the area where the power generation equipment is arranged into regions. The regional division methods include division based on wind farm characteristics and division based on area scale; A power generation acquisition unit is used to acquire the power generation of the wind power equipment, analyze and determine the power generation characteristics, and establish a power characteristic comparison library, which includes a number of preset power generation curves under different wind volume conditions; An evaluation unit, used to convert the real-time power generation acquired by the power generation acquisition unit into a real-time power generation curve, and determine the power generation curve control group that best meets the performance of all wind power equipment at present in the power feature comparison library, analyze and calculate the deviation of each real-time power generation curve by comparison, and evaluate the operation quality of the corresponding wind power equipment according to the deviation, and determine the inspection intensity of the wind power equipment according to the evaluation result; A maintenance sequence analysis unit, used to set maintenance priority values ​​for components of the wind power equipment and determine a maintenance priority sequence according to the maintenance priority values; An operating status analysis unit, used to analyze the operating status of each component of the wind power equipment; The parameter correction unit is used to correct the maintenance priority value of the component according to the operating status of the component of the wind power equipment, and sum the maintenance priority values ​​of all components of the same equipment to obtain the equipment maintenance priority value, and correct the inspection intensity of the wind power equipment according to the equipment maintenance priority value.

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