Wind turbine generator running state division and judgment method, device, equipment and medium

Abstract

The invention discloses a wind turbine generator running state division and judgment method, device, equipment and medium, and relates to the technical field of wind turbine generators, the method comprises the following steps: defining a first-level state for describing the running state of a wind turbine generator, dividing the first-level state according to the production index of the wind turbine generator, and determining the running state of the wind turbine generator; obtaining a second-level state for performing index statistical calculation; setting judgment logics for each of the first-stage state and the second-stage state, and monitoring and acquiring operation data of the wind turbine generator to be judged in real time; judging the operation state of the operation data according to the judgment logic to obtain a judgment result, and determining the target operation state and the production index condition of the wind turbine generator to be judged from the primary state and the secondary state based on the judgment result. According to the technical scheme, the accuracy and efficiency of judging the running state of the wind turbine generator can be improved, the running state of the wind turbine generator is comprehensively covered, and the diagnosis and early warning accuracy is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of wind turbine generator sets, and in particular to a method, device, equipment and medium for dividing and determining the operating states of wind turbine generator sets. Background Art

[0002] In the current industry solutions, the centralized control platform only divides the operating status of wind turbines into 8 types, which is unable to distinguish in detail and comprehensively cover all the operating status of wind turbines. In addition, the operating status of wind turbines on the original centralized control platform and the operating status of wind turbines used in indicator calculations have different classification methods and judgment logics. The data of the two are not connected, and the operating status of wind turbines cannot be accurately judged, resulting in the inability to provide accurate and timely early warnings.

[0003] As can be seen from the above, how to improve the accuracy and efficiency of judging the operating status of wind turbines, comprehensively cover the operating status of wind turbines, and improve the accuracy of diagnosis and early warning are problems to be solved in this field. Summary of the invention

[0004] In view of this, the purpose of the present invention is to provide a method, device, equipment and medium for classifying and determining the operating status of a wind turbine, which can improve the accuracy and efficiency of judging the operating status of a wind turbine, comprehensively cover the operating status of a wind turbine, and improve the accuracy of diagnosis and early warning. The specific scheme is as follows:

[0005] In the first aspect, the present application discloses a method for dividing and determining the operating status of a wind turbine generator set, which is applied to a centralized control platform, including:

[0006] A primary state for describing the operating state of the wind turbine is defined, and the primary state is divided according to the production index of the wind turbine to obtain a secondary state for performing statistical calculation of the index;

[0007] Setting a determination logic for each of the primary state and the secondary state, respectively, and monitoring and acquiring the operation data of the wind turbine to be determined in real time;

[0008] The operating state of the operating data is determined according to the determination logic to obtain a determination result, and the target operating state and production index of the wind turbine to be determined are determined from the primary state and the secondary state based on the determination result.

[0009] Optionally, the first-level status includes communication interruption, standby operation, normal operation, load-limited operation, fault shutdown and general shutdown; the second-level status includes communication interruption, standby operation, normal operation, self-load limit, scheduling load limit, fault shutdown, unplanned maintenance shutdown, planned maintenance shutdown and scheduling shutdown.

[0010] Optionally, performing operating state determination on the operating data according to the determination logic to obtain a determination result, and determining a target operating state and a production index of the wind turbine to be determined from the primary state and the secondary state based on the determination result, includes:

[0011] Determine whether the last state of the wind turbine to be determined is off-site shutdown; if the last state of the wind turbine to be determined is not off-site shutdown, determine whether the refresh frequency quick test point values ​​in the operation data of the wind turbine to be determined have not changed within a preset time;

[0012] If the refresh frequency quick test point values ​​in the operating data of the wind turbine to be determined do not change within the preset time, a determination result of abnormal communication between the wind turbine and the centralized control center is obtained;

[0013] Based on the determination result of abnormal communication between the wind turbine and the centralized control center, the first target operating state of the wind turbine group to be determined is determined from the primary state and the secondary state; the first target operating state is communication interruption.

[0014] Optionally, after determining whether the refresh frequency quick test point values ​​in the operating data of the wind turbine to be determined have not changed within a preset time, the method further includes:

[0015] If the refresh frequency quick test point value in the operation data of the wind turbine to be determined changes within a preset time, it is determined whether the unit power of the wind turbine to be determined is not greater than the preset power threshold, and whether the network measured current is not greater than the preset current threshold;

[0016] If the unit power of the wind turbine to be determined is greater than the preset power threshold, and the network-measured current is not greater than the preset current threshold, or the unit power of the wind turbine to be determined is greater than the preset power threshold, and the network-measured current is greater than the preset current threshold, or the unit power of the wind turbine to be determined is not greater than the preset power threshold, and the network-measured current is greater than the preset current threshold, then determine whether the wind turbine to be determined meets the load limit judgment condition;

[0017] If the wind turbine to be determined does not meet the load limit judgment condition, a determination result is obtained that the wind turbine is in a normal power generation state. Based on the determination result that the wind turbine is in a normal power generation state, a second target operating state of the wind turbine to be determined is determined from the primary state and the secondary state; the second target operating state is normal operation.

[0018] Optionally, after determining whether the wind turbine generator set to be determined meets the load limit determination condition, the method further includes:

[0019] If the wind turbine to be determined meets the load limit determination condition, determining whether the wind turbine to be determined has a power limit signal that is true;

[0020] If the unit power limit signal of the wind turbine to be determined is true, a determination result that the wind turbine is in a limited output power generation state due to scheduling reasons is obtained, and a third target operating state of the wind turbine to be determined is determined from the primary state and the secondary state based on the determination result that the wind turbine is in a limited output power generation state due to scheduling reasons; the third target operating state is a scheduling load limit;

[0021] If the unit power limit signal of the wind turbine to be determined is not true, a determination result is obtained that the wind turbine is in a limited output power generation state due to problems with the unit equipment itself. Based on the determination result that the wind turbine is in a limited output power generation state due to problems with the unit equipment itself, the fourth target operating state of the wind turbine to be determined is determined from the primary state and the secondary state; the fourth target operating state is self-load limit.

[0022] Optionally, after determining whether the wind turbine generator set power to be determined is not greater than a preset power threshold and whether the network-measured current is not greater than a preset current threshold, the method further includes:

[0023] If the unit power of the wind turbine to be determined is not greater than the preset power threshold, and the network-measured current is not greater than the preset current threshold, then determining whether the bus voltage in the voltage of the wind turbine to be determined is within the preset bus voltage threshold, or determining whether the wind turbine to be determined sends a weather factor shutdown signal;

[0024] If the bus voltage in the voltage of the wind turbine to be determined is within the preset bus voltage threshold, or the wind turbine to be determined sends a weather factor shutdown signal, then a determination result is obtained that the wind turbine is shut down due to a power outage in the power grid, weather factors other than the turbine itself, or non-wind farm internal factors, and the fifth target operating state of the wind turbine to be determined is determined from the primary state and the secondary state based on the determination result that the wind turbine is shut down due to a power outage in the power grid, weather factors other than the turbine itself, or non-wind farm internal factors; the fifth target operating state is off-site affected shutdown;

[0025] If the bus voltage in the voltage of the wind turbine to be determined is not within the preset bus voltage threshold, the wind turbine to be determined sends a weather factor shutdown signal, or the bus voltage in the voltage of the wind turbine to be determined is not within the preset bus voltage threshold, the wind turbine to be determined does not send a weather factor shutdown signal, then determine whether the wind turbine to be determined meets the on-site affected shutdown condition;

[0026] If the wind turbine to be determined meets the on-site affected shutdown conditions, a determination result is obtained that the wind turbine is shut down due to factors other than the wind turbine itself. Based on the determination result that the wind turbine is shut down due to factors other than the wind turbine itself, the sixth target operating state of the wind turbine to be determined is determined from the primary state and the secondary state; the sixth target operating state is on-site affected shutdown.

[0027] Optionally, after determining whether the wind turbine generator set to be determined meets the on-site affected shutdown condition, the method further includes:

[0028] If the wind turbine generator set to be determined does not meet the on-site affected shutdown condition, determining whether the wind turbine generator set to be determined is in a maintenance state;

[0029] If the wind turbine to be determined is in a state of overhaul and maintenance, then determine whether the wind turbine to be determined meets the unplanned overhaul and shutdown conditions; if the wind turbine to be determined meets the unplanned overhaul and shutdown conditions, then obtain a determination result of an unplanned shutdown of the wind turbine; based on the determination result of the unplanned shutdown of the wind turbine, determine the seventh target operating state of the wind turbine to be determined from the primary state and the secondary state; the seventh target operating state is an unplanned overhaul and shutdown; if the wind turbine to be determined does not meet the unplanned overhaul and shutdown conditions, then obtain a determination result of a planned shutdown of the wind turbine; based on the determination result of the planned shutdown of the wind turbine, determine the eighth target operating state of the wind turbine to be determined from the primary state and the secondary state; the eighth target operating state is a planned overhaul and shutdown;

[0030] If the wind turbine to be determined is not in a state of overhaul and maintenance, a determination result is determined based on the fault shutdown state, fault alarm signal and unit power limiting signal of the wind turbine to be determined, and a ninth target operating state of the wind turbine to be determined is determined from the first-level state and the second-level state based on the determination result; the ninth target operating state is fault shutdown, scheduling shutdown or standby operation.

[0031] In the second aspect, the present application discloses a device for dividing and determining the operating status of a wind turbine generator set, which is applied to a centralized control platform, comprising:

[0032] A state division module, used to define a primary state for describing the operating state of the wind turbine generator set, and to divide the primary state according to the production index of the wind turbine generator set to obtain a secondary state for performing statistical calculation of the index;

[0033] A determination logic setting module, used to set determination logic for each of the primary state and the secondary state, and to monitor and obtain the operation data of the wind turbine to be determined in real time;

[0034] An operating status determination module is used to perform operating status determination on the operating data according to the determination logic to obtain a determination result, and determine the target operating status and production index status of the wind turbine to be determined from the primary status and the secondary status based on the determination result.

[0035] In a third aspect, the present application discloses an electronic device, comprising:

[0036] Memory, used to store computer programs;

[0037] The processor is used to execute the computer program to implement the above-mentioned wind turbine operating state classification and determination method.

[0038] In a fourth aspect, the present application discloses a computer storage medium for storing a computer program; wherein, when the computer program is executed by a processor, the steps of the aforementioned method for dividing and determining the operating status of a wind turbine are implemented.

[0039] It can be seen that the present application provides a method for dividing and determining the operating status of a wind turbine, including defining a primary state for describing the operating status of a wind turbine, dividing the primary state according to production indicators of the wind turbine to obtain a secondary state for performing statistical calculations of the indicators; setting determination logic for each of the primary state and the secondary state, respectively, and monitoring and acquiring the operating data of the wind turbine to be determined in real time; performing operating status determination on the operating data according to the determination logic to obtain a determination result, and determining the target operating status and production indicator status of the wind turbine to be determined from the primary state and the secondary state based on the determination result. The present application is applied to a centralized control platform, defines a primary state for describing the operating status of a wind turbine, and a secondary state for performing statistical calculations on indicators, can quickly respond to any issues that may affect the performance of a wind turbine system, can optimize the reliability and energy efficiency management of wind power equipment, continuously improve the level of new energy production and operation, comprehensively cover the operating status of wind turbines, and set judgment logic for each of the primary and secondary states. According to the judgment logic, an operating status judgment is performed on the operating data of the wind turbine to be judged, and a target operating status and production indicator status are determined based on the judgment result. The application takes into account centralized control operation and indicator statistics in a hierarchical manner, intuitively displays the operating status of wind turbines, accurately counts production indicators, unifies the wind turbine status and judgment logic used for centralized control operation and indicator statistics, realizes data connectivity, and can improve the accuracy and efficiency of judging the operating status of wind turbines, and improve the accuracy of diagnosis and early warning. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0041] Figure 1 A flow chart of a method for dividing and determining the operating status of a wind turbine generator system disclosed in the present application;

[0042] Figure 2 A specific flow chart for determining the operating status of a wind turbine generator system disclosed in the present application;

[0043] Figure 3 This is a schematic diagram of the structure of a device for dividing and determining the operating status of a wind turbine generator system disclosed in the present application;

[0044] Figure 4 A structural diagram of an electronic device provided for this application. DETAILED DESCRIPTION

[0045] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0046] In the current industry solutions, the centralized control platform only divides the wind turbine operating status into 8 types, which cannot distinguish and fully cover all the operating status of the wind turbine in detail. In addition, the original centralized control platform has different division methods and judgment logics for the wind turbine operating status and the wind turbine operating status used in the index calculation. The data of the two are not connected, and the operating status of the wind turbine cannot be accurately judged, resulting in the inability to accurately and timely issue early warnings. As can be seen from the above, how to improve the accuracy and efficiency of judging the operating status of wind turbines, fully cover the operating status of wind turbines, and improve the accuracy of diagnosis and early warning are problems to be solved in this field.

[0047] See also Figure 1 As shown, the embodiment of the present invention discloses a method for dividing and determining the operating status of a wind turbine generator set, which is applied to a centralized control platform and may specifically include:

[0048] Step S11: defining a primary state for describing the operating state of a wind turbine generator set, and dividing the primary state according to production indicators of the wind turbine generator set to obtain a secondary state for performing indicator statistical calculation.

[0049] In this embodiment, the first-level status includes communication interruption, standby operation, normal operation, load-limited operation, fault shutdown and general shutdown; the second-level status includes communication interruption, standby operation, normal operation, self-load limit, scheduling load limit, fault shutdown, unplanned maintenance shutdown, planned maintenance shutdown and scheduling shutdown.

[0050] That is to say, this application divides the operating status of wind turbines into primary and secondary states to simultaneously meet the requirements of centralized control operation and statistical calculation of production indicators. The primary state is mainly to facilitate the centralized control on-duty operation personnel to grasp the operating status of the wind turbine in real time. By real-time monitoring of the primary state, operators can quickly respond to any problems that may affect the performance of the wind turbine system to ensure the stable and safe operation of the wind turbine system. The secondary state is mainly used for statistical calculation of indicators. Utilizing the new energy production indicator system and indicator calculation method, scientifically evaluate the new energy production management situation, optimize the reliability and energy efficiency management of wind power equipment, and continuously improve the level of new energy production operations.

[0051] In order to meet the requirements of centralized control duty operation and facilitate the statistical calculation of wind turbine production indicators, the wind turbine operating status is divided into primary and secondary states. The primary operating status of the wind turbine is divided into 6 states: communication interruption, standby, normal operation, load limit operation, fault shutdown, and general shutdown; the secondary operating status of the wind turbine is divided into 11 states: communication interruption, standby, normal operation, self-load limit, dispatching load limit, fault shutdown, unplanned maintenance shutdown, planned maintenance shutdown, dispatching shutdown, off-site affected shutdown, and on-site affected shutdown. The corresponding relationship between the primary and secondary states is shown in Table 1:

[0052] Table 1

[0053]

[0054] Step S12: setting a determination logic for each of the primary state and the secondary state, and monitoring and acquiring the operation data of the wind turbine to be determined in real time.

[0055] The present application sets a judgment logic for each state in the primary state and the secondary state, and performs an operation state judgment on the operation data of the wind turbine generator set according to the judgment logic, so as to determine the target operation state of the wind turbine generator set. The specific judgment logics of the 6 primary states and 11 secondary states are as follows:

[0056] (I) The specific judgment logic of the fan primary state is:

[0057] (1) Communication interruption

[0058] Definition: The communication between the fan and the centralized control center is abnormal;

[0059] Judgment logic: The values ​​of the wind turbine generator set’s refresh frequency fast test points (wind speed, power, grid voltage, and current) have not changed for more than 1 minute (the refresh time is adjusted according to the test run results);

[0060] (2) Standby operation

[0061] Definition: The power generation state is in the state where the wind speed is not within the available range, including the low wind standby state and high wind cut-out state;

[0062] Judgment logic: In a non-communication interruption state, the unit power is less than or equal to 0.5kW and the grid-side current is less than or equal to 30A, and it is in a non-shutdown state (the judgment logic is that it is in standby operation after excluding other states);

[0063] (3) Normal operation

[0064] Definition: The wind turbine is in normal power generation state;

[0065] Judgment logic: In the non-communication interruption state, the unit power is greater than 0.5kW or the grid-side current is greater than 30A, and it is in the non-load-limited operation state;

[0066] (4) Load-limited operation

[0067] Definition: The wind turbine is in the state of limited power generation;

[0068] Judgment logic: In the non-communication interruption state, the unit power is greater than 0.5kW or the grid-side current is greater than 30A, the 5-minute average wind speed is less than 5m / s, and the unit power (5-minute average) is less than 50% of the theoretical power; or the 5-minute average wind speed is between 5m / s-8m / s, and the unit power (5-minute average) is less than 70% of the theoretical power; or the 5-minute average wind speed is greater than 8m / s, and the unit power (5-minute average) is less than 80% of the theoretical power;

[0069] (5) Fault shutdown

[0070] Definition: The unit is unable to generate electricity due to a fault, including maintenance shutdown caused by unit fault;

[0071] Judgment logic: in non-communication interruption state, unit power is less than or equal to 0.5kW and grid-side current is less than or equal to 30A, in non-involved shutdown state, in non-maintenance shutdown state, the unit is in fault shutdown state or one / two fault alarms occur;

[0072] (6) General downtime

[0073] Definition: Planned shutdown of wind turbines due to inspection, scheduled inspection, testing, etc., as well as shutdown caused by non-unit factors such as on-site or off-site main transformer or line tripping, power grid outage, power grid dispatching, weather environment (icing / storm / low temperature), etc.

[0074] Judgment logic: In the non-communication interruption state, the unit power is less than or equal to 0.5kW and the grid-side current is less than or equal to 30A. Comprehensive judgment is made based on the bus voltage inside and outside the field, switch status, low-voltage side voltage of the box transformer, wind turbine grid-connected voltage, unit fault, maintenance, weather environment and previous status signal;

[0075] (II) The specific judgment logic for the secondary status division of the fan is:

[0076] (1) Communication interruption

[0077] Definition: The communication between the fan and the centralized control center is abnormal;

[0078] Judgment logic: The values ​​of the wind turbine generator set’s refresh frequency fast test points (wind speed, power, grid voltage, and current) have not changed for more than 1 minute (the refresh time is adjusted according to the test run results);

[0079] (2) Standby operation

[0080] Definition: The power generation state is in the state where the wind speed is not within the available range, including the low wind standby state and high wind cut-out state;

[0081] Judgment logic: In a non-communication interruption state, the unit power is less than or equal to 0.5kW and the grid-side current is less than or equal to 30A, and it is in a non-shutdown state (the judgment logic is that it is in standby operation after excluding other states);

[0082] (3) Normal operation

[0083] Definition: The wind turbine is in normal power generation state;

[0084] Judgment logic: In the non-communication interruption state, the unit power is greater than 0.5kW or the grid-side current is greater than 30A, and it is in the non-load-limited operation state;

[0085] (4) Dispatching load limit

[0086] Definition: The power generation is limited due to scheduling reasons;

[0087] Judgment logic: In non-communication interruption state; unit power is greater than 0.5kW or grid-side current is greater than 30A; the unit is in load-limited state (refer to the first-level state judgment), the unit power-limited signal is true, and a comprehensive judgment is made in combination with the AGC command information and the standard power curve;

[0088] (5) Self-limiting load

[0089] Definition: The unit is in a state of limited output power generation due to problems with the unit equipment itself;

[0090] Judgment logic: In the non-communication interruption state, the unit power is greater than 0.5kW or the grid-side current is greater than 30A; the unit is in the load limit state (refer to the first-level state judgment), the unit power limit signal is no, and a comprehensive judgment is made in combination with the AGC command information and the standard power curve;

[0091] (6) Fault shutdown

[0092] Definition: The unit is unable to generate electricity due to a fault, including maintenance shutdown caused by the unit fault;

[0093] Judgment logic: in non-communication interruption state, unit power is less than or equal to 0.5kW and grid-side current is less than or equal to 30A, in non-involved shutdown state, in non-maintenance shutdown state, the unit is in fault shutdown state or triggers one / two fault alarm signals;

[0094] (7) Unplanned maintenance shutdown

[0095] Definition: Unplanned shutdown of wind turbines due to fault elimination or other reasons;

[0096] Judgment logic: In non-communication interruption state, unit power is less than or equal to 0.5kW and grid-side current is less than or equal to 30A, in non-involved shutdown state, the unit is in maintenance state, and the previous state is non-fault shutdown or unplanned maintenance shutdown state;

[0097] (8) Planned maintenance shutdown

[0098] Definition: Planned shutdown of wind turbines due to scheduled inspection, patrol inspection, testing, etc.

[0099] Judgment logic: In non-communication interruption state, unit power is less than or equal to 0.5kW and grid-side current is less than or equal to 30A, in non-involved shutdown state, the unit is in maintenance state, and the previous state is non-fault shutdown and planned maintenance shutdown state;

[0100] (9) Scheduling downtime

[0101] Definition: The power grid is not generating electricity due to grid dispatching reasons;

[0102] Judgment logic: In non-communication interruption state, unit power is less than or equal to 0.5kW and grid-side current is less than or equal to 30A, in non-involved shutdown state, unit is not in maintenance state, non-fault shutdown state, unit power limit signal is true;

[0103] (10) Off-site downtime

[0104] Definition: The wind turbine is shut down due to power outage, weather factors (icing / storm / low temperature), etc., which are not caused by the unit itself or the wind farm itself.

[0105] Judgment logic: In the non-communication interruption state, the unit power is less than or equal to 0.5kW and the grid-side current is less than or equal to 30A, the wind farm 35kV bus voltage is ≤1KV and the 110 / 220kV bus voltage is ≤1KV, or the unit reports an ice / storm / low temperature shutdown signal;

[0106] (11) Downtime due to on-site impact

[0107] Definition: The wind turbine is shut down due to factors other than the wind turbine itself, such as the main transformer failure, box transformer failure, or line abnormal tripping within the wind farm;

[0108] Judgment logic: In the non-communication interruption state, the unit power is less than or equal to 0.5kW and the grid-side current is less than or equal to 30A, the low voltage of the box transformer is ≤10V (if any) and the wind turbine grid-connected voltage is ≤10V, or the corresponding collector line switch is disconnected and the collector line current is <1A), or the corresponding bus line voltage is ≤1kV and the phase voltage is ≤1kV);

[0109] Step S13: Performing an operating state determination on the operating data according to the determination logic to obtain a determination result, and determining the target operating state and production index of the wind turbine to be determined from the primary state and the secondary state based on the determination result.

[0110] In this embodiment, it is determined whether the previous state of the wind turbine to be determined is an off-site shutdown. If the previous state of the wind turbine to be determined is not an off-site shutdown, it is determined whether the refresh frequency quick test point values ​​in the operating data of the wind turbine to be determined have not changed within a preset time; if the refresh frequency quick test point values ​​in the operating data of the wind turbine to be determined have not changed within a preset time, a determination result of abnormal communication between the wind turbine and the centralized control center is obtained; based on the determination result of abnormal communication between the wind turbine and the centralized control center, the first target operating state of the wind turbine to be determined is determined from the primary state and the secondary state; the first target operating state is communication interruption.

[0111] Among them, if the refresh frequency fast test point value in the operating data of the wind turbine group to be determined changes within a preset time, it is judged whether the unit power of the wind turbine group to be determined is not greater than the preset power threshold, and whether the network-measured current is not greater than the preset current threshold; if the unit power of the wind turbine group to be determined is greater than the preset power threshold, the network-measured current is not greater than the preset current threshold, or the unit power of the wind turbine group to be determined is greater than the preset power threshold, the network-measured current is greater than the preset current threshold, or the unit power of the wind turbine group to be determined is not greater than the preset power threshold, and the network-measured current is greater than the preset current threshold, then it is judged whether the wind turbine group to be determined meets the load limit judgment condition; if the wind turbine group to be determined does not meet the load limit judgment condition, a judgment result that the wind turbine is in a normal power generation state is obtained, and based on the judgment result that the wind turbine is in a normal power generation state, the second target operating state of the wind turbine group to be determined is determined from the primary state and the secondary state; the second target operating state is normal operation.

[0112] Furthermore, if the wind turbine to be determined meets the load limit judgment condition, it is determined whether the unit power limit signal of the wind turbine to be determined is true; if the unit power limit signal of the wind turbine to be determined is true, a judgment result is obtained that the wind turbine is in a limited output power generation state due to scheduling reasons, and the third target operating state of the wind turbine to be determined is determined from the primary state and the secondary state based on the judgment result that the wind turbine is in a limited output power generation state due to scheduling reasons; the third target operating state is the scheduling load limit; if the unit power limit signal of the wind turbine to be determined is not true, a judgment result is obtained that the wind turbine is in a limited output power generation state due to problems with the unit equipment itself, and the fourth target operating state of the wind turbine to be determined is determined from the primary state and the secondary state based on the judgment result that the wind turbine is in a limited output power generation state due to problems with the unit equipment itself; the fourth target operating state is the self-load limit.

[0113] Then, if the unit power of the wind turbine to be determined is not greater than the preset power threshold, and the network-measured current is not greater than the preset current threshold, then it is determined whether the bus voltage in the voltage of the wind turbine to be determined is within the preset bus voltage threshold, or whether the wind turbine to be determined sends a weather factor shutdown signal; if the bus voltage in the voltage of the wind turbine to be determined is within the preset bus voltage threshold, or the wind turbine to be determined sends a weather factor shutdown signal, then a determination result of the shutdown of the wind turbine due to power outages in the power grid, weather factors other than the unit itself, and non-wind farm internal factors is obtained, and based on the determination result of the shutdown of the wind turbine due to power outages in the power grid, weather factors other than the unit itself, and non-wind farm internal factors, the fifth target operating state of the wind turbine to be determined is determined from the primary state and the secondary state; The fifth target operating state is off-site affected shutdown; if the bus voltage in the voltage of the wind turbine to be determined is not within the preset bus voltage threshold, the wind turbine to be determined sends a weather factor shutdown signal, or the bus voltage in the voltage of the wind turbine to be determined is not within the preset bus voltage threshold, and the wind turbine to be determined does not send a weather factor shutdown signal, then it is determined whether the wind turbine to be determined meets the on-site affected shutdown conditions; if the wind turbine to be determined meets the on-site affected shutdown conditions, then a determination result is obtained that the wind turbine is shut down due to factors other than the wind turbine itself, and based on the determination result that the wind turbine is shut down due to factors other than the wind turbine itself, the sixth target operating state of the wind turbine to be determined is determined from the primary state and the secondary state; the sixth target operating state is on-site affected shutdown.

[0114] Finally, if the wind turbine to be determined does not meet the on-site affected shutdown conditions, then determine whether the wind turbine to be determined is in a maintenance state; if the wind turbine to be determined is in a maintenance state, then determine whether the wind turbine to be determined meets the unplanned maintenance shutdown conditions; if the wind turbine to be determined meets the unplanned maintenance shutdown conditions, then obtain a determination result of the unplanned shutdown of the wind turbine; based on the determination result of the unplanned shutdown of the wind turbine, determine the seventh target operating state of the wind turbine to be determined from the primary state and the secondary state; the seventh target operating state is an unplanned maintenance shutdown; if the wind turbine to be determined does not meet the unplanned maintenance shutdown conditions, then determine whether the wind turbine to be determined is in a maintenance state; if the wind turbine to be determined is in a maintenance state, then determine whether the wind turbine to be determined is in a maintenance state; If the wind turbine to be determined is in a state of overhaul and maintenance, then a determination result is determined based on the fault shutdown state, fault alarm signal and unit power limit signal of the wind turbine to be determined, and a ninth target operating state of the wind turbine to be determined is determined from the first-level state and the second-level state based on the determination result; the ninth target operating state is fault shutdown or scheduled shutdown or standby operation.

[0115] The specific process of determining the operating status of a wind turbine generator set in this application is as follows: Figure 2As shown, it is determined whether the previous state of the wind turbine to be determined is an off-site shutdown. If not (N), it is determined whether the refresh frequency quick test point values ​​have not changed within the preset time. If it is (Y), the determination result of abnormal communication between the wind turbine and the centralized control center is obtained, and the first target operating state of the wind turbine to be determined is determined to be communication interruption. If the previous state of the wind turbine to be determined is an off-site shutdown, it is determined whether the unit power P is greater than or equal to 0.5kW, or whether the wind turbine triggers a standby signal. If the unit power P is greater than or equal to 0.5kW, or the wind turbine triggers a standby signal, it is not updated. new status code, otherwise determine whether the refresh frequency quick test point value has not changed within the preset time; if the refresh frequency quick test point value changes within the preset time, determine whether the unit power of the wind turbine to be determined is not greater than the preset power threshold (determine whether P is less than or equal to 0.5kW), and whether the network-measured current is not greater than the preset current threshold (determine whether the grid-side current is less than or equal to 30A); if the unit power of the wind turbine to be determined is less than or equal to 0.5kW, the network-measured current is less than or equal to 30A, or the unit power of the wind turbine to be determined is greater than 0.5kW, and the network-measured current is greater than 30A, Or if the unit power of the wind turbine to be determined is not greater than 0.5kW, and the network-measured current is greater than 30A, then it is determined whether the wind turbine to be determined meets the load limit determination condition (determine whether the LLO condition is equal to 1). If the wind turbine to be determined does not meet the load limit determination condition, then the determination result that the wind turbine is in a normal power generation state is obtained, and the second target operating state of the wind turbine to be determined is determined to be normal operation; if the wind turbine to be determined meets the load limit determination condition (LLO condition = 1), then it is determined whether the unit power limit signal of the wind turbine to be determined is true (determine whether the unit power limit signal is equal to 1); if If the unit power limit signal of the wind turbine to be determined is true (unit power limit signal = 1), the determination result of being in the limited output power generation state due to scheduling reasons is obtained, and the third target operating state of the wind turbine to be determined is determined to be the scheduling load limit. If the unit power limit signal of the wind turbine to be determined is not true, the determination result of being in the limited output power generation state due to problems with the unit equipment itself is obtained, and the fourth target operating state of the wind turbine to be determined is determined to be the self-load limit; if the unit power of the wind turbine to be determined is not greater than the preset power threshold, and the network measured current is not greater than the preset current threshold, then the unit power is less than or equal to 0.5kW and the grid-side current is less than or equal to 30A, the wind farm 35kV bus voltage ≤1KV and the 110 / 220kV bus voltage ≤1KV, or whether the unit sends an ice / storm / low temperature shutdown signal; if so, the determination result of the shutdown of the wind turbine due to power outage of the power grid, weather factors not caused by the unit itself, and non-wind farm internal factors is obtained, and the fifth target operating state of the wind turbine to be determined is determined to be off-site affected shutdown; if the bus voltage in the voltage of the wind turbine to be determined is not within the preset bus voltage threshold, the wind turbine to be determined sends a weather factor shutdown signal, or the bus voltage in the voltage of the wind turbine to be determined is not within the preset bus voltage threshold, and the wind turbine to be determined does not send a weather factor shutdown signal, then it is determined whether the wind turbine to be determined meets the on-site affected shutdown condition (that is, it is determined that the unit power is less than or equal to 0.5kW and the grid-side current is less than or equal to 30A, the low voltage of the box transformer is ≤10V (if any) and the grid-connected voltage of the wind turbine is ≤10V, or the corresponding collector line switch is disconnected and the collector line current is <1A), or the corresponding bus line voltage is ≤1kV and the phase voltage is ≤1kV); if the on-site affected shutdown condition is met, the determination result of the shutdown of the wind turbine due to factors other than the wind turbine itself is obtained, and the sixth target operating state of the wind turbine to be determined is determined to be the on-site affected shutdown; if the on-site affected shutdown condition is not met, it is determined whether the wind turbine to be determined is in the maintenance state (determine whether the maintenance signal is equal to 1); If the wind turbine to be determined is in a state of overhaul and maintenance, determine whether the unplanned maintenance shutdown condition is met (determine whether the previous state is an unplanned maintenance shutdown state); if the wind turbine to be determined meets the unplanned maintenance shutdown condition (the previous state is an unplanned maintenance shutdown state), obtain the determination result of the unplanned shutdown of the wind turbine to be determined, and determine that the seventh target operating state of the wind turbine to be determined is an unplanned maintenance shutdown; if the wind turbine to be determined does not meet the unplanned maintenance shutdown condition (the previous state is a fault shutdown), obtain the determination result of the planned shutdown of the wind turbine to be determined, and determine that the wind turbine to be determined is in a state of overhaul and maintenance. The eighth target operating state of the wind turbine set is planned maintenance shutdown; if the wind turbine set to be determined is not in the maintenance state, then determine whether the set is in a fault shutdown state or whether one / two fault alarm signals are triggered. If the set is in a fault shutdown state and one / two fault alarm signals are triggered, or the set is in a fault shutdown state and one / two fault alarm signals are not triggered, or the set is not in a fault shutdown state and one / two fault alarm signals are triggered, then the determination result is obtained that the set does not have the ability to generate electricity due to the fault, including the maintenance shutdown caused by the set fault, and the ninth target operating state of the wind turbine set to be determined is determined to be a fault. Shutdown, if the unit is not in a fault shutdown state and the first / second fault alarm signal is not triggered, then determine whether the unit power limit signal is 1. If the unit power limit signal is 1, then obtain the result of the planned shutdown of the wind turbine unit due to scheduled inspection, patrol inspection, testing, etc., and determine the ninth target operating state of the wind turbine to be determined as scheduled shutdown based on the determination result. If the unit power limit signal is not 1, then obtain the state of standby power generation due to the wind speed not being within the available range, including the state of low wind standby and high wind cut-out, and determine the ninth target operating state of the wind turbine to be determined as standby operation based on the determination result. .

[0116] The key points of this application are: (1) defining and dividing each state in the primary state and the secondary state, which must cover all the operating states of the wind turbine; (2) setting the judgment logic of each state, and accurately judging the operating state of the wind turbine by real-time monitoring of the unit power, current, voltage and other signals; (3) taking into account the centralized control operation and indicator statistics in a hierarchical manner, intuitively displaying the operating state of the wind turbine, accurately counting the production indicators, unifying the wind turbine state and judgment logic used for centralized control operation and indicator statistics, and realizing data connection. This application divides the operating state of the wind turbine more clearly and diversely. The centralized control operation and indicator statistics use the same wind turbine state division standard, which more intuitively and accurately displays the actual operating state of the wind turbine, and more comprehensively meets the requirements of statistical calculation of wind turbine production indicators; improves the accuracy of diagnosis and early warning, optimizes maintenance and maintenance plans, and improves power generation efficiency.

[0117] In this embodiment, a primary state is defined for describing the operating state of a wind turbine generator set, and the primary state is divided according to production indicators of the wind turbine generator set to obtain a secondary state for performing statistical calculations of the indicators; a determination logic is set for each of the primary state and the secondary state, and operating data of the wind turbine generator set to be determined is monitored and acquired in real time; an operating state determination is performed on the operating data according to the determination logic to obtain a determination result, and a target operating state and production indicator status of the wind turbine generator set to be determined are determined from the primary state and the secondary state based on the determination result. The present application is applied to a centralized control platform, defines a primary state for describing the operating status of a wind turbine, and a secondary state for performing statistical calculations on indicators, can quickly respond to any issues that may affect the performance of a wind turbine system, can optimize the reliability and energy efficiency management of wind power equipment, continuously improve the level of new energy production and operation, comprehensively cover the operating status of wind turbines, and set judgment logic for each of the primary and secondary states. According to the judgment logic, an operating status judgment is performed on the operating data of the wind turbine to be judged, and a target operating status and production indicator status are determined based on the judgment result. The application takes into account centralized control operation and indicator statistics in a hierarchical manner, intuitively displays the operating status of wind turbines, accurately counts production indicators, unifies the wind turbine status and judgment logic used for centralized control operation and indicator statistics, realizes data connectivity, and can improve the accuracy and efficiency of judging the operating status of wind turbines, and improve the accuracy of diagnosis and early warning.

[0118] See also Figure 3 As shown, the embodiment of the present invention discloses a device for dividing and determining the operating status of a wind turbine generator set, which is applied to a centralized control platform and may specifically include:

[0119] A state division module 11 is used to define a primary state for describing the operating state of the wind turbine generator set, and divide the primary state according to the production index of the wind turbine generator set to obtain a secondary state for performing statistical calculation of the index;

[0120] A determination logic setting module 12, used to set determination logic for each of the primary state and the secondary state, and to monitor and obtain the operation data of the wind turbine to be determined in real time;

[0121] The operating status determination module 13 is used to perform operating status determination on the operating data according to the determination logic to obtain a determination result, and determine the target operating status and production index of the wind turbine to be determined from the primary status and the secondary status based on the determination result.

[0122] In this embodiment, a primary state is defined for describing the operating state of a wind turbine generator set, and the primary state is divided according to production indicators of the wind turbine generator set to obtain a secondary state for performing statistical calculations of the indicators; a determination logic is set for each of the primary state and the secondary state, and operating data of the wind turbine generator set to be determined is monitored and acquired in real time; an operating state determination is performed on the operating data according to the determination logic to obtain a determination result, and a target operating state and production indicator status of the wind turbine generator set to be determined are determined from the primary state and the secondary state based on the determination result. The present application is applied to a centralized control platform, defines a primary state for describing the operating status of a wind turbine, and a secondary state for performing statistical calculations on indicators, can quickly respond to any issues that may affect the performance of a wind turbine system, can optimize the reliability and energy efficiency management of wind power equipment, continuously improve the level of new energy production and operation, comprehensively cover the operating status of wind turbines, and set judgment logic for each of the primary and secondary states. According to the judgment logic, an operating status judgment is performed on the operating data of the wind turbine to be judged, and a target operating status and production indicator status are determined based on the judgment result. The application takes into account centralized control operation and indicator statistics in a hierarchical manner, intuitively displays the operating status of wind turbines, accurately counts production indicators, unifies the wind turbine status and judgment logic used for centralized control operation and indicator statistics, realizes data connectivity, and can improve the accuracy and efficiency of judging the operating status of wind turbines, and improve the accuracy of diagnosis and early warning.

[0123] In some specific embodiments, the first-level status includes communication interruption, standby operation, normal operation, load-limited operation, fault shutdown and general shutdown; the second-level status includes communication interruption, standby operation, normal operation, self-load limit, scheduling load limit, fault shutdown, unplanned maintenance shutdown, planned maintenance shutdown and scheduling shutdown.

[0124] In some specific embodiments, the operating state determination module 13 may specifically include:

[0125] The quick test point value judgment module is used to judge whether the last state of the wind turbine to be judged is off-site shutdown; if the last state of the wind turbine to be judged is not off-site shutdown, then judge whether the refresh frequency quick test point value in the operation data of the wind turbine to be judged has not changed within a preset time;

[0126] The first determination result judgment module is used to obtain a determination result of abnormal communication between the wind turbine and the centralized control center if the refresh frequency fast test point value in the operation data of the wind turbine to be determined has not changed within a preset time;

[0127] The first target operating state determination module is used to determine the first target operating state of the wind turbine to be determined from the first-level state and the second-level state based on the determination result of abnormal communication between the wind turbine and the centralized control center; the first target operating state is communication interruption.

[0128] In some specific embodiments, the operating state determination module 13 may specifically include:

[0129] A preset power threshold judgment module is used to judge whether the unit power of the wind turbine to be judged is not greater than the preset power threshold, and whether the network-measured current is not greater than the preset current threshold if the refresh frequency fast test point value in the operating data of the wind turbine to be judged changes within a preset time;

[0130] A load limit judgment condition judgment module is used to judge whether the wind turbine to be judged meets the load limit judgment condition if the unit power of the wind turbine to be judged is greater than the preset power threshold and the network-measured current is not greater than the preset current threshold, or the unit power of the wind turbine to be judged is greater than the preset power threshold and the network-measured current is greater than the preset current threshold, or the unit power of the wind turbine to be judged is not greater than the preset power threshold and the network-measured current is greater than the preset current threshold;

[0131] The second target operating state determination module is used to obtain a determination result that the wind turbine is in a normal power generation state if the wind turbine to be determined does not meet the load limit judgment condition, and determine the second target operating state of the wind turbine to be determined from the primary state and the secondary state based on the determination result that the wind turbine is in a normal power generation state; the second target operating state is normal operation.

[0132] In some specific embodiments, the operating state determination module 13 may specifically include:

[0133] A load limit judgment condition judgment module, used for judging whether the unit power limit signal of the wind turbine to be judged is true if the wind turbine to be judged meets the load limit judgment condition;

[0134] A third target operating state determination module is used to obtain a determination result that the wind turbine to be determined is in a limited output power generation state due to scheduling reasons if the unit power limit signal of the wind turbine to be determined is true, and determine the third target operating state of the wind turbine to be determined from the primary state and the secondary state based on the determination result that the wind turbine to be determined is in a limited output power generation state due to scheduling reasons; the third target operating state is a scheduling load limit;

[0135] The fourth target operating state determination module is used to obtain a determination result that the wind turbine to be determined is in a limited output power generation state due to a problem with the unit equipment itself, if the unit power limit signal of the wind turbine to be determined is not true, and determine the fourth target operating state of the wind turbine to be determined from the primary state and the secondary state based on the determination result that the wind turbine to be determined is in a limited output power generation state due to a problem with the unit equipment itself; the fourth target operating state is self-load limit.

[0136] In some specific embodiments, the operating state determination module 13 may specifically include:

[0137] A weather factor shutdown signal judgment module is used to judge whether the bus voltage in the voltage of the wind turbine to be judged is within the preset bus voltage threshold, or to judge whether the wind turbine to be judged sends a weather factor shutdown signal if the unit power of the wind turbine to be judged is not greater than the preset power threshold and the network measured current is not greater than the preset current threshold;

[0138] A fifth target operating state determination module is used to obtain a determination result of the shutdown of the wind turbine due to a power outage in the power grid, weather factors other than the unit itself, or non-wind farm internal factors, if the bus voltage in the voltage of the wind turbine to be determined is within a preset bus voltage threshold, or the wind turbine to be determined sends a weather factor shutdown signal, and determine the fifth target operating state of the wind turbine to be determined from the primary state and the secondary state based on the determination result of the shutdown of the wind turbine due to a power outage in the power grid, weather factors other than the unit itself, or non-wind farm internal factors; the fifth target operating state is off-site affected shutdown;

[0139] The on-site affected shutdown condition judgment module is used to judge whether the wind turbine to be determined meets the on-site affected shutdown condition if the bus voltage in the voltage of the wind turbine to be determined is not within the preset bus voltage threshold and the wind turbine to be determined sends a weather factor shutdown signal, or the bus voltage in the voltage of the wind turbine to be determined is not within the preset bus voltage threshold and the wind turbine to be determined does not send a weather factor shutdown signal;

[0140] The sixth target operating state determination module is used to obtain the determination result of the shutdown of the wind turbine due to factors other than the wind turbine itself if the wind turbine to be determined meets the on-site affected shutdown conditions, and determine the sixth target operating state of the wind turbine to be determined from the primary state and the secondary state based on the determination result of the shutdown of the wind turbine due to factors other than the wind turbine itself; the sixth target operating state is the on-site affected shutdown.

[0141] In some specific embodiments, the operating state determination module 13 may specifically include:

[0142] An overhaul and maintenance status judgment module is used to judge whether the wind turbine to be judged is in an overhaul and maintenance state if the wind turbine to be judged does not meet the on-site affected shutdown conditions;

[0143] An eighth target operating state determination module is used to determine whether the wind turbine to be determined meets the unplanned maintenance shutdown condition if the wind turbine to be determined is in a maintenance state; if the wind turbine to be determined meets the unplanned maintenance shutdown condition, obtain the determination result of the unplanned shutdown of the wind turbine; based on the determination result of the unplanned shutdown of the wind turbine, determine the seventh target operating state of the wind turbine to be determined from the primary state and the secondary state; the seventh target operating state is the unplanned maintenance shutdown; if the wind turbine to be determined does not meet the unplanned maintenance shutdown condition, obtain the determination result of the planned shutdown of the wind turbine; based on the determination result of the planned shutdown of the wind turbine, determine the eighth target operating state of the wind turbine to be determined from the primary state and the secondary state; the eighth target operating state is the planned maintenance shutdown;

[0144] The ninth target operating state determination module is used to determine the determination result based on the fault shutdown state, fault alarm signal and unit power limit signal of the wind turbine to be determined if the wind turbine to be determined is not in the maintenance state, and determine the ninth target operating state of the wind turbine to be determined from the primary state and the secondary state based on the determination result; the ninth target operating state is fault shutdown, scheduling shutdown or standby operation.

[0145] Figure 4 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application. The electronic device 20 may specifically include: at least one processor 21, at least one memory 22, a power supply 23, a communication interface 24, an input / output interface 25, and a communication bus 26. The memory 22 is used to store a computer program, which is loaded and executed by the processor 21 to implement the relevant steps in the wind turbine operating state classification and determination method performed by the electronic device disclosed in any of the aforementioned embodiments.

[0146] In this embodiment, the power supply 23 is used to provide working voltage for each hardware device on the electronic device 20; the communication interface 24 can create a data transmission channel between the electronic device 20 and the external device, and the communication protocol it follows is any communication protocol that can be applied to the technical solution of the present application, and is not specifically limited here; the input and output interface 25 is used to obtain external input data or output data to the outside world, and its specific interface type can be selected according to specific application needs and is not specifically limited here.

[0147] In addition, the memory 22, as a carrier for storing resources, can be a read-only memory, a random access memory, a disk or an optical disk, etc. The resources stored thereon include an operating system 221, a computer program 222 and data 223, etc. The storage method can be temporary storage or permanent storage.

[0148] Among them, the operating system 221 is used to manage and control the hardware devices and computer programs 222 on the electronic device 20, so as to realize the operation and processing of the data 223 in the memory 22 by the processor 21, which can be Windows, Unix, Linux, etc. In addition to including a computer program that can be used to complete the wind turbine operating state classification and determination method performed by the electronic device 20 disclosed in any of the aforementioned embodiments, the computer program 222 can further include a computer program that can be used to complete other specific tasks. In addition to including data transmitted from an external device received by the wind turbine operating state classification and determination device, the data 223 can also include data collected by its own input and output interface 25, etc.

[0149] The steps of the method or algorithm described in conjunction with the embodiments disclosed herein may be implemented directly using hardware, a software module executed by a processor, or a combination of the two. The software module may be placed in a random access memory (RAM), a memory, a read-only memory (ROM), an electrically programmable ROM, an electrically erasable programmable ROM, a register, a hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art.

[0150] Furthermore, an embodiment of the present application also discloses a computer-readable storage medium, in which a computer program is stored. When the computer program is loaded and executed by a processor, the steps of the wind turbine operating state classification and determination method disclosed in any of the aforementioned embodiments are implemented.

[0151] Finally, it should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0152] The above is a detailed introduction to a method, device, equipment and storage medium for dividing and determining the operating status of a wind turbine provided by the present invention. Specific examples are used in this article to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea; at the same time, for a person skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the present invention.

Claims

1. A method for classifying and determining the operating status of a wind turbine generator set, characterized in that: Applied to centralized control platforms, including: A primary state for describing the operating state of the wind turbine is defined, and the primary state is divided according to the production index of the wind turbine to obtain a secondary state for performing statistical calculation of the index; Setting a determination logic for each of the primary state and the secondary state, respectively, and monitoring and acquiring the operation data of the wind turbine to be determined in real time; The operating state of the operating data is determined according to the determination logic to obtain a determination result, and the target operating state and production index of the wind turbine to be determined are determined from the primary state and the secondary state based on the determination result.

2. The method for classifying and determining the operating status of a wind turbine generator set according to claim 1, characterized in that: The first-level status includes communication interruption, standby operation, normal operation, load-limited operation, fault shutdown and general shutdown; the second-level status includes communication interruption, standby operation, normal operation, self-load limit, scheduling load limit, fault shutdown, unplanned maintenance shutdown, planned maintenance shutdown and scheduling shutdown.

3. The method for classifying and determining the operating status of a wind turbine generator set according to claim 1, characterized in that: The step of performing operating state determination on the operating data according to the determination logic to obtain a determination result, and determining a target operating state and a production index of the wind turbine to be determined from the primary state and the secondary state based on the determination result, includes: Determine whether the last state of the wind turbine to be determined is off-site shutdown; if the last state of the wind turbine to be determined is not off-site shutdown, determine whether the refresh frequency quick test point values ​​in the operation data of the wind turbine to be determined have not changed within a preset time; If the refresh frequency quick test point values ​​in the operating data of the wind turbine to be determined do not change within the preset time, a determination result of abnormal communication between the wind turbine and the centralized control center is obtained; Based on the determination result of abnormal communication between the wind turbine and the centralized control center, the first target operating state of the wind turbine group to be determined is determined from the primary state and the secondary state; the first target operating state is communication interruption.

4. The method for classifying and determining the operating status of a wind turbine generator set according to claim 3, characterized in that: After determining whether the refresh frequency quick test point values ​​in the operation data of the wind turbine to be determined have not changed within a preset time, the method further includes: If the refresh frequency quick test point value in the operation data of the wind turbine to be determined changes within a preset time, it is determined whether the unit power of the wind turbine to be determined is not greater than the preset power threshold, and whether the network measured current is not greater than the preset current threshold; If the unit power of the wind turbine to be determined is greater than the preset power threshold, and the network-measured current is not greater than the preset current threshold, or the unit power of the wind turbine to be determined is greater than the preset power threshold, and the network-measured current is greater than the preset current threshold, or the unit power of the wind turbine to be determined is not greater than the preset power threshold, and the network-measured current is greater than the preset current threshold, then determine whether the wind turbine to be determined meets the load limit judgment condition; If the wind turbine to be determined does not meet the load limit judgment condition, a determination result is obtained that the wind turbine is in a normal power generation state. Based on the determination result that the wind turbine is in a normal power generation state, a second target operating state of the wind turbine to be determined is determined from the primary state and the secondary state; the second target operating state is normal operation.

5. The method for classifying and determining the operating status of a wind turbine generator set according to claim 4, characterized in that: After determining whether the wind turbine generator set to be determined meets the load limit determination condition, the method further includes: If the wind turbine to be determined meets the load limit determination condition, determining whether the wind turbine to be determined has a power limit signal that is true; If the unit power limit signal of the wind turbine to be determined is true, a determination result that the wind turbine is in a limited output power generation state due to scheduling reasons is obtained, and a third target operating state of the wind turbine to be determined is determined from the primary state and the secondary state based on the determination result that the wind turbine is in a limited output power generation state due to scheduling reasons; the third target operating state is a scheduling load limit; If the unit power limit signal of the wind turbine to be determined is not true, a determination result is obtained that the wind turbine is in a limited output power generation state due to problems with the unit equipment itself. Based on the determination result that the wind turbine is in a limited output power generation state due to problems with the unit equipment itself, the fourth target operating state of the wind turbine to be determined is determined from the primary state and the secondary state; the fourth target operating state is self-load limit.

6. The method for classifying and determining the operating status of a wind turbine generator set according to claim 4, characterized in that: After determining whether the wind turbine generator set power to be determined is not greater than a preset power threshold and whether the network-measured current is not greater than a preset current threshold, the method further includes: If the unit power of the wind turbine to be determined is not greater than the preset power threshold, and the network-measured current is not greater than the preset current threshold, then determining whether the bus voltage in the voltage of the wind turbine to be determined is within the preset bus voltage threshold, or determining whether the wind turbine to be determined sends a weather factor shutdown signal; If the bus voltage in the voltage of the wind turbine to be determined is within the preset bus voltage threshold, or the wind turbine to be determined sends a weather factor shutdown signal, then a determination result is obtained that the wind turbine is shut down due to a power outage in the power grid, weather factors other than the turbine itself, or non-wind farm internal factors, and the fifth target operating state of the wind turbine to be determined is determined from the primary state and the secondary state based on the determination result that the wind turbine is shut down due to a power outage in the power grid, weather factors other than the turbine itself, or non-wind farm internal factors; the fifth target operating state is off-site affected shutdown; If the bus voltage in the voltage of the wind turbine to be determined is not within the preset bus voltage threshold, the wind turbine to be determined sends a weather factor shutdown signal, or the bus voltage in the voltage of the wind turbine to be determined is not within the preset bus voltage threshold, the wind turbine to be determined does not send a weather factor shutdown signal, then determine whether the wind turbine to be determined meets the on-site affected shutdown condition; If the wind turbine to be determined meets the on-site affected shutdown conditions, a determination result is obtained that the wind turbine is shut down due to factors other than the wind turbine itself. Based on the determination result that the wind turbine is shut down due to factors other than the wind turbine itself, the sixth target operating state of the wind turbine to be determined is determined from the primary state and the secondary state; the sixth target operating state is on-site affected shutdown.

7. The method for classifying and determining the operating status of a wind turbine generator set according to claim 6, characterized in that: After determining whether the wind turbine generator set to be determined meets the on-site affected shutdown condition, the method further includes: If the wind turbine generator set to be determined does not meet the on-site affected shutdown condition, determining whether the wind turbine generator set to be determined is in a maintenance state; If the wind turbine to be determined is in a state of overhaul and maintenance, then determine whether the wind turbine to be determined meets the unplanned overhaul and shutdown conditions; if the wind turbine to be determined meets the unplanned overhaul and shutdown conditions, then obtain a determination result of an unplanned shutdown of the wind turbine; based on the determination result of the unplanned shutdown of the wind turbine, determine the seventh target operating state of the wind turbine to be determined from the primary state and the secondary state; the seventh target operating state is an unplanned overhaul and shutdown; if the wind turbine to be determined does not meet the unplanned overhaul and shutdown conditions, then obtain a determination result of a planned shutdown of the wind turbine; based on the determination result of the planned shutdown of the wind turbine, determine the eighth target operating state of the wind turbine to be determined from the primary state and the secondary state; the eighth target operating state is a planned overhaul and shutdown; If the wind turbine to be determined is not in a state of overhaul and maintenance, a determination result is determined based on the fault shutdown state, fault alarm signal and unit power limiting signal of the wind turbine to be determined, and a ninth target operating state of the wind turbine to be determined is determined from the first-level state and the second-level state based on the determination result; the ninth target operating state is fault shutdown, scheduling shutdown or standby operation.

8. A device for classifying and determining the operating status of a wind turbine generator set, characterized in that: Applied to centralized control platforms, including: A state division module, used to define a primary state for describing the operating state of the wind turbine generator set, and to divide the primary state according to the production index of the wind turbine generator set to obtain a secondary state for performing statistical calculation of the index; A determination logic setting module, used to set determination logic for each of the primary state and the secondary state, and to monitor and obtain the operation data of the wind turbine to be determined in real time; An operating status determination module is used to perform operating status determination on the operating data according to the determination logic to obtain a determination result, and determine the target operating status and production index status of the wind turbine to be determined from the primary status and the secondary status based on the determination result.

9. An electronic device, characterized in that: include: Memory, used to store computer programs; A processor is used to execute the computer program to implement the method for dividing and determining the operating status of a wind turbine generator set according to any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that: Used to store computer programs; wherein, when the computer program is executed by a processor, the method for dividing and determining the operating status of a wind turbine set according to any one of claims 1 to 7 is implemented.

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