Range wind power generation monitoring management system

Abstract

The invention discloses a range wind power generation monitoring management system, which relates to the technical field of wind power generation, and is characterized by comprising a control end, a first gearbox connected with blades, a second gearbox connected between the first gearbox and a generator, and the generator, according to the control system, the rotating speed range of the paddle is limited through an effective adjustable interval on the continuously variable transmission, the deflection angle of the paddle and the adaptive wind speed are divided into a plurality of adjusting units based on the rotating speed range of the paddle, and the maximum value and the minimum value adapting to the wind speed of each adjusting unit serve as judgment points, so that the accuracy of the control system is improved. Adjustment of the deflection angle of the paddle is achieved through the judgment point, so that the continuously variable transmission can be independently adjusted in each adjusting unit, meanwhile, the continuously variable transmission can conduct constant transmission on a generator within the adaptive adjusting range in cooperation with limitation of the effective adjustable interval, stable power generation is guaranteed, and meanwhile the service life of the generator is prolonged. And the stepless speed changing box is effectively protected.

Description

Technical Field

[0001] The present invention relates to the technical field of wind power generation, and more specifically, it relates to a range-type wind power generation monitoring and management system. Background Art

[0002] A wind turbine is a power device that converts wind energy into mechanical work. The mechanical work drives the rotor to rotate, and finally outputs alternating current electricity. The blades rotate under the action of wind, converting the kinetic energy of the wind into the mechanical energy of the wind turbine shaft. The generator rotates to generate electricity driven by the wind turbine shaft.

[0003] Since traditional wind turbines adopt a linear transmission form, the wind drives the blades, and after multiple speed changes through the gearbox, it drives the operation of the generator to achieve the purpose of power generation. At the same time, when the wind speed is different, the blades can adjust their own angles to adjust the rotation speed of the blades, so as to achieve a stable power output of the generator. Due to the linear transmission form, the wind speed change is not fixed, and the blade angle can be adjusted in real time following the wind speed. During the adjustment process, the rotation speed of the blades will be affected to a certain extent, resulting in a large fluctuation range of the generator's power output and affecting the power generation efficiency;

[0004] For example, a vertical axis wind turbine with the patent number "CN203548057U", in its content, it involves "adopting a continuously variable transmission, which can improve the transmission efficiency, so as to ensure the continuous power output of the wind energy generator, and the output voltage is stable. It can also ensure that the wind turbine will not be forced to stop due to excessive external wind force for fear of damage, resulting in waste of wind energy that cannot be utilized.";

[0005] Another example is a control system and method using a continuously variable transmission gearbox in a wind turbine with the patent number "CN114962166A". Its content involves that "when the control system and method using a continuously variable transmission gearbox in a wind turbine are specifically operated, the five-stage speed change principle is used, so that the fan blades can stably output electric energy under the condition of continuously changing wind speed, and the output rotation speed of the fan blades is the optimal output speed of the calculated fan blades, so as to improve the power generation capacity of the wind turbine unit. At the same time, protection measures for the fan blades are increased. When the wind speed is too high, the gearbox of the fan nacelle is locked to avoid damage to the fan blades, and the safety is relatively high."

[0006] The above two patents both achieve the purpose of generator power stability through a continuously variable transmission. Although the continuously variable transmission can improve the stability of the generator power output, from the perspective of overall system control, since the continuously variable transmission control needs to be comprehensively judged in combination with wind speed and blade speed to achieve adaptive adjustment, if it is combined with the factor of blade angle deflection, it will increase the complexity of the overall real-time judgment of the system and increase the amount of calculation of the system, which may easily cause response delays. Furthermore, since the torque generated by the continuously variable transmission during the adjustment process is different, when the blades rotate at a low speed for a long time, the torque of the continuously variable transmission will increase and the force on the steel belt will increase, seriously affecting the service life of the continuously variable transmission and the accuracy of the speed change.

[0007] Therefore, in order to solve the above technical problems, the present application proposes a wide-range wind power generation monitoring and management system. Summary of the invention

[0008] In view of the deficiencies in the prior art, an object of the present invention is to provide a wide-range wind power generation monitoring and management system.

[0009] To achieve the above object, the present invention provides the following technical solution: A range wind power generation monitoring and management system, comprising: a control terminal, a first gearbox connected to the blades, a second gearbox connected between the first gearbox and the generator, and the generator;

[0010] Among them, the control end includes a collection module, an analysis module, a calculation module and a control module;

[0011] Collection module: collects wind speed fluctuation range data and power generation fluctuation range data when the generator is running;

[0012] Analysis module: Determine the optimal power generation based on the fluctuation range of power generation , analyze the generator shaft speed, the adjustable range of the second gearbox and the torque change data of the second gearbox within the adjustable range in turn, and set an effective adjustment range. According to the effective adjustment range, combined with the speed stage analysis of the first gearbox and the blade speed ratio, determine the blade speed range;

[0013] Calculation module: Based on the rotation speed range of the blades, an evolution model of the adaptive change between the blade deflection angle and the wind speed is constructed;

[0014] Control module: adaptively controlling the blade deflection angle and the speed adjustment of the second gearbox through model determination;

[0015] The first gearbox is a multi-stage gearbox composed of multiple gear groups, which is used to change the rotation speed of the blades, and the input end of the first gearbox is connected to the shaft of the blades;

[0016] The second transmission is a hydro-mechanical continuously variable transmission, which includes a first adjusting seat connected to the output end of the first transmission, a second adjusting seat connected to the generator shaft, and a steel belt disposed between the first adjusting seat and the second adjusting seat for adjusting the transmission ratio. The steel belt adjusts the transmission ratio through the cooperation of the first cylinder and the auxiliary cylinder on the first adjusting seat with the second cylinder and the auxiliary cylinder on the second adjusting seat. A brake disc is provided on the second cylinder, which is connected by a support rod and contacts the brake disc provided on the generator shaft for braking.

[0017] Preferably, the second adjusting seat is the output end of the second transmission, and the rotational speed of the output end of the second transmission is denoted as , the first adjusting seat is the input end of the second transmission, and the rotational speed of the input end of the second transmission is denoted as , the transmission shaft of the output end of the second transmission is connected to the generator shaft, and the rotational speed of the output end and are calculated by the following formula:

[0018] ;

[0019] where is the generator power, is the air density, is the shaft swept area, is the power coefficient.

[0020] Preferably, for the adjustable range of the second transmission, based on and the transmission ratio of the second transmission, calculate the rotational speed change range of the input end of the second transmission. The rotational speed change range of the input end corresponds to the adjustable distance between the first adjusting seat and the second adjusting seat, denoted as , and is denoted as and respectively at both endpoints. The and of the rotational speed change range are calculated by the following formulas:

[0021] : ;

[0022] : ;

[0023] where is the minimum input speed of the second transmission, is the maximum input speed of the second transmission, is the minimum transmission ratio of the second transmission, is the maximum transmission ratio of the second transmission, is the output speed of the second transmission.

[0024] Preferably, the effective adjustment range is set within the adjustable range of the second transmission based on the torque change of the second transmission. The effective adjustment range corresponds to the adjustable distances of the first adjustment seat and the second adjustment seat, denoted as , and The two endpoints are respectively denoted as and , where < , the rotational speed within the effective adjustment range is denoted as , and The transmission ratios at and are denoted as and The calculation formulas for the rotational speed change range

[0025] are as follows: ;

[0026] are as follows: ;

[0027] where is the minimum input speed of the effective adjustment range, is the maximum input speed of the effective adjustment range, is the minimum transmission ratio of the effective adjustment range, is the maximum transmission ratio of the effective adjustment range, is the output speed of the second transmission.

[0028] Preferably, according to the input end of the effective adjustment range , the range of the blade rotational speed is calculated through the speed stages of the first transmission. The blade rotational speed is denoted as , and the calculation formulas are as follows:

[0029] ;

[0030] where is the blade rotational speed, is the transmission ratio of the first transmission, is the rotational speed within the effective adjustment range.

[0031] Preferably, according to the rotational speeds within the effective adjustment range ~ , an evolutionary model for the adaptive change between the blade deflection angle and the wind speed is constructed, specifically including the following:

[0032] Step 1, based on the blade rotational speed Range, divide the range of the blade's deflectable angle into angles, and construct different angles Under different wind speeds And the blade rotation speed Change model, denoted as Model A;

[0033] Step 2, based on the range of the blade rotation speed Range, divide the wind speed Range suitable for the generator into Levels, and construct different wind speed levels Under the condition, the blade deflection angle and the blade rotation speed Change model, denoted as Model B;

[0034] Step 3, based on the range of the blade rotation speed Range, correct Model A and Model B by superposition, and evolve and construct Model C, and evolve and construct Model C.

[0035] Preferably, in Step 1, when constructing different angles, the wind speed And the blade rotation speed The algorithm of the change model specifically includes the following. Calculate the ratio of the blade rotation speed To the wind speed And the wind speed Ratio , where Is the radius of the blade, Is the rotation speed of the blade, Is the wind speed;

[0036] Under different angles Determine Effective range ;

[0037] Calculate the adapted wind speed Range, that is, the minimum suitable wind speed And the maximum suitable wind speed , specifically including the following: , .

[0038] Preferably, in Step 2, when constructing different wind speed levels Under the condition, the algorithm of the blade deflection angle and the blade rotation speed Change model includes the following. Calculate the ratio of the blade rotation speed To the wind speed And the wind speed Ratio , where Is the radius of the blade, Is the rotation speed of the blade, Is the wind speed;

[0039] Under different wind speed levels , calculate the rotational speed range of the rotating shaft , corresponding to , specifically including the following: , ;

[0040] Obtain the effective range of the blade deflection angle .

[0041] Preferably, model C is evolved and generated based on model A and model B by constructing a weighted adaptation function, and its functional formula is:

[0042] ;

[0043] Among them, is the weight coefficient, is the influence degree of the blade deflection angle of model A on the rotational speed range of the blade ; is the influence degree of the wind speed of model A on the rotational speed range of the blade ; is a constant; is the influence degree of the wind speed of model B on the rotational speed range of the blade , is the influence degree of the blade deflection angle of model B on the rotational speed range of the blade , is a constant.

[0044] A range-based wind power generation monitoring method specifically includes the following:

[0045] S1. Set the power generation , according to the power generation , the system will combine the effective adjustment range of the second gearbox ~ , calculate the range of the blade rotational speed , based on the range, the system will divide multiple adjustment units according to the matching between the blade deflection angle and the wind speed ;

[0046] Among them, each unit in the multiple adjustment units uses the blade deflection angle as the judgment point, and each blade deflection angle contains all wind speeds within the range of the adaptive blade rotational speed ​, and the adjustment of the blade deflection angle is based on the minimum wind speed and the maximum wind speed suitable at this angle, that is and as the adjustment points;

[0047] S2. According to the wind speed , the system will adjust the blades to the corresponding angles. When the wind speed reaches and , the system will perform angle adjustment according to the corresponding adjustment unit;

[0048] S3. When the wind speed is at or below the of the minimum adjustment unit, that is, equal to or less than the starting operating wind speed of the generator, the wind turbine will stop operating. When the wind speed is at or above the of the maximum adjustment unit, the cylinder of the second gearbox will perform forced speed reduction through disc braking.

[0049] Compared with the prior art, the present invention has the following beneficial effects:

[0050] 1. In this control system, the rotational speed range of the blades is limited by the effective adjustable range on the stepless gearbox. Based on the rotational speed range of the blades, the deflection angle of the blades and the wind speed suitable for it are divided into multiple adjustment units. By using the maximum and minimum values of the wind speed suitable for each adjustment unit as the determination points, the adjustment of the blade deflection angle is achieved through these determination points. In this way, the stepless gearbox can be independently adjusted in each adjustment unit. At the same time, with the limitation of the effective adjustable range, the stepless gearbox can perform constant transmission on the generator within the suitable adjustment range, ensuring stable power generation while effectively protecting the stepless gearbox itself.

[0051] 2. Through the setting of multiple adjustment units in this control system, for the adjustment of the blade deflection angle, it is only necessary to determine the maximum and minimum wind force data at both ends of each adjustment unit. For different wind speeds within the corresponding angle, no determination is required, effectively simplifying the complexity of the system's real-time determination of the wind speed, the blade deflection angle, and the adjustment of the stepless gearbox. At the same time, when the wind speed is at the maximum wind force of the maximum adjustment unit or greater than this wind force, the cylinder during the adjustment process of the stepless gearbox will perform forced speed reduction through disc braking, without the need for system determination. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0053] Figure 1 It is a flowchart of the wind power generation monitoring method in the present invention;

[0054] Figure 2 It is a control flowchart of the wind power generation monitoring and management system in the present invention;

[0055] Figure 3 It is a division diagram of multiple adjustment units in the wind power generation monitoring and management system in the present invention;

[0056] Figure 4 It is a structural diagram of the second gearbox in the wind power generation monitoring and management system in the present invention.

[0057] 1. First adjustment seat; 101. First cylinder; 2. Second adjustment seat; 201. Second cylinder; 202. Brake disc; 3. Auxiliary cylinder; 4. Brake disc. Specific embodiments

[0058] As Figures 1-4 shown, the present invention provides a range-type wind power generation monitoring and management system, including a control terminal, a first gearbox connected to the blade, a second gearbox connected between the first gearbox and the generator, and the generator;

[0059] Among them, the control terminal includes a collection module, an analysis module, a calculation module, and a control module;

[0060] Collection module: Collect the data of the wind speed fluctuation range and the power generation fluctuation range when the generator is running;

[0061] Analysis module: Determine the optimal power generation according to the power generation fluctuation range data , successively analyze the rotation speed of the generator shaft, the adjustable range of the second gearbox, and analyze the torque change data of the second gearbox within the adjustable range, set an effective adjustment interval, and determine the rotation speed range of the blade according to the effective adjustment interval combined with the gear change stages of the first gearbox and the rotation speed ratio of the blade;

[0062] Calculation module: Construct an evolutionary model of the adaptive change between the blade deflection angle and the wind speed according to the rotation speed range of the blade;

[0063] Control module: Perform adaptive control on the blade deflection angle and the gear change adjustment of the second gearbox through model determination;

[0064] The first gearbox is a multi-stage gearbox composed of multiple groups of gears, used to change the rotation speed of the blade, and the input end of the first gearbox is connected to the shaft of the blade;

[0065] As Figure 4As shown, the second transmission is a hydro-mechanical continuously variable transmission, including a first adjusting seat 1 connected to the output end of the first transmission, a second adjusting seat 2 connected to the generator shaft, and a steel belt disposed between the first adjusting seat 1 and the second adjusting seat 2 for adjusting the transmission ratio. The steel belt is cooperated with the second cylinder 201 and the auxiliary cylinder 3 on the second adjusting seat 2 through the first cylinder 101 and the auxiliary cylinder 3 on the first adjusting seat 1 to adjust the transmission ratio. A brake disc 202 is arranged on the second cylinder 201 and is connected by a support rod and contacts and brakes the brake disc 4 arranged on the generator shaft;

[0066] Among them, through the adjustment of the second transmission, the stability of the transmission of the generator drive shaft can be effectively ensured, thereby ensuring the stable control of the power generated by the generator;

[0067] Further, the second adjusting seat 2 is the output end of the second transmission, and the rotational speed of the output end of the second transmission is denoted as , the first adjusting seat 1 is the input end of the second transmission, and the rotational speed of the input end of the second transmission is denoted as , the transmission shaft of the output end of the second transmission is connected to the generator shaft, and the rotational speed of the output end and The calculation formula between them is:

[0068] ;

[0069] Among them, is the generator power, is the air density, is the shaft swept area, is the power coefficient;

[0070] Since is proportional to the rotational speed of the generator drive shaft, by collecting the fluctuation data of and detecting the fluctuation range of the corresponding rotational speed of the generator drive shaft, the power coefficient between and can be obtained. After determining the value of , combined with and the fixed values (shaft swept area and air density) related to external factors, the rotational speed of can be calculated through the formula;

[0071] When is known, it is necessary to calculate the adjustment range of the input end of the second transmission in combination with the transmission ratio of the second transmission;

[0072] Specifically, the adjustable range of the second transmission is based on and the transmission ratio of the second transmission to calculate the rotational speed change range at the input end of the second transmission . The rotational speed change range at the input end corresponds to the adjustable distance of the first adjusting seat 1 and the second adjusting seat 2, denoted as , and are respectively denoted as and at both endpoints. The rotational speed change ranges and have the following calculation formulas:

[0073] : ;

[0074] : ;

[0075] Among them, is the minimum input speed of the second transmission, is the maximum input speed of the second transmission, is the minimum transmission ratio of the second transmission, is the maximum transmission ratio of the second transmission, is the output speed of the second transmission;

[0076] For the speed regulation range, it only needs to be determined according to the adjustment distance between the cylinders of the second transmission, and the limit endpoints and are set. Based on ~ all within are within the adjustable range;

[0077] When is in the range of ~ , different torques are generated. To protect the second transmission, an effective adjustment interval needs to be set between ~ ;

[0078] Furthermore, the effective adjustment interval is set within the adjustable range of the second transmission based on the torque change of the second transmission. The effective adjustment interval corresponds to the adjustable distance of the first adjusting seat 1 and the second adjusting seat 2, denoted as , and are respectively denoted as and at both endpoints. Among them, < . The rotational speed of the effective adjustment interval is denoted as . and the transmission ratios at and are denoted as and The calculation formulas are as follows:

[0079] : ;

[0080] : ;

[0081] Among them, is the minimum input speed of the effective adjustment range, is the maximum input speed of the effective adjustment range, is the minimum transmission ratio of the effective adjustment range, is the maximum transmission ratio of the effective adjustment range, is the output speed of the second gearbox;

[0082] For the effective adjustment range, that is, within the range of ~ a torque adaptation adjustment range based on the second gearbox is set, ~ within the range of The speed regulation range will adapt to the transmission of and also adapt to the torque change under different transmission ratios of the second gearbox;

[0083] Since the first gearbox is a speed regulation mechanism for the rotational speed of the blade, it only increases the rotational speed of the blade. Specifically, according to the input end of the effective adjustment area , the range of the blade rotational speed is calculated through the speed change stage of the first gearbox. The blade rotational speed is denoted as The calculation formula is as follows:

[0084] ;

[0085] Among them is the blade rotational speed, is the transmission ratio of the first gearbox, is the rotational speed of the effective adjustment range;

[0086] In order to calculate the variation relationship between the wind speed within a constant range based on the blade rotational speed and the blade deflection angle , it is necessary to use the wind speed and the blade deflection angle Construct two sets of interacting models, and through the correction and combination of the two sets of models, evolve a model for , , the influence;

[0087] Furthermore, according to the rotational speed within the effective adjustment range ~ , construct an evolutionary model of the adaptive change between the blade deflection angle and the wind speed, specifically including the following:

[0088] Step 1, based on the blade rotational speed range, divide the range of the blade's deflectable angle into angles, and construct a change model of different wind speeds at different angles and the blade rotational speed , denoted as model A;

[0089] Step 2, based on the blade rotational speed range, divide the wind speed range suitable for the generator into levels, and construct a change model of the blade deflection angle and the blade rotational speed at different wind speed levels , denoted as model B;

[0090] Step 3, based on the blade rotational speed range, correct models A and B by superposition and evolve to construct model C;

[0091] For the calculation steps involved in model A,

[0092] Construct the algorithm for the change model of wind speed and blade rotational speed at different angles specifically as follows: calculate the ratio of the blade rotational speed to the wind speed through the formula , where is the radius of the blade, is the rotational speed of the blade, is the wind speed;

[0093] At different angles , determine the effective range ;

[0094] Calculate the adaptable wind speed range, that is, the minimum suitable wind speed and the maximum suitable wind speed, specifically including the following: , ;

[0095] The calculation steps involved in model B are as follows:

[0096] Construct different wind speed levels The blade deflection angle and blade speed The specific algorithm of the change model is as follows: Calculate the blade speed Ratio to wind speed ,in, is the radius of the blade, is the rotation speed of the blade, is the wind speed;

[0097] Different wind speed levels The shaft speed range is [ , ] Corresponding , specifically including the following: , ;

[0098] Get the blade deflection angle Effective scope[ ];

[0099] Based on the above, model C is generated by constructing a weighted adaptation function based on model A and model B, and its function is:

[0100] ;

[0101] in, is the weight coefficient, is the blade deflection angle of model A Blade speed The extent of the impact of the scope; Wind speed for model A Blade speed The extent of the impact of the scope; is a constant; Wind speed for model B Blade speed The extent of the impact of the scope, is the blade deflection angle of model B Blade speed range The degree of influence is a constant;

[0102] The specific control process of this system includes the following:

[0103] S1. Set the power generation , according to the power generation , the system will combine the effective adjustment range of the second gearbox ~ , the rotational speed of the blade is calculated , based on the range, the system will divide multiple adjustment units according to the matching between the deflection angle of the blade and the wind speed ;

[0104] Among them, each unit of the multiple adjustment units uses the deflection angle of the blade as the judgment point, and each deflection angle of the blade contains all wind speeds within the range of the applicable blade rotational speed ; moreover, the adjustment of the deflection angle of the blade is based on the minimum wind speed and the maximum wind speed applicable at this angle, that is and as the adjustment points;

[0105] S2. According to the wind speed , the system will adjust the blade to the corresponding angle. When the wind speed reaches and , the system will perform angle adjustment according to the corresponding adjustment unit;

[0106] S3. When the wind speed is at or below the of the minimum adjustment unit, that is, equal to or less than the starting operating wind speed of the generator, the wind turbine will stop operating. When the wind speed is at or above the of the maximum adjustment unit, the cylinder of the second gearbox will perform forced speed reduction through disc braking.

[0107] The above is only the preferred embodiment of the present invention, and does not impose any form of limitation on the present invention; any ordinary technician in the industry can smoothly implement the invention according to the illustrations in the specification and the above; however, any minor changes, modifications, and equivalent variations made by those skilled in the art within the scope of the technical solution of the present invention using the technical content disclosed above are all equivalent embodiments of the present invention; at the same time, any equivalent changes, modifications, and variations made to the above embodiments based on the essential technology of the present invention still fall within the protection scope of the technical solution of the present invention.

Claims

1. A range-type wind power generation monitoring and management system, characterized in that, Comprising: A control end, a first gearbox connected to the blade, a second gearbox connected between the first gearbox and the generator, and the generator; Wherein, the control end includes an acquisition module, an analysis module, a calculation module, and a control module; Acquisition module: When the generator is running, it acquires the data of the wind speed fluctuation range and the data of the power generation fluctuation range; Analysis module: Determine the optimal power generation according to the data of the fluctuation range of power generation , sequentially analyze the rotational speed of the generator shaft, the adjustable range of the second gearbox, and analyze the torque change data of the second gearbox within the adjustable range, set an effective adjustment range, and determine the rotational speed range of the blade according to the effective adjustment range in combination with the gear change stages of the first gearbox and the blade rotational speed ratio Calculation module: According to the rotation speed range of the blade, an evolution model of the adaptive change between the blade deflection angle and the wind speed is constructed; Control module: Through model determination, adaptive control is carried out on the blade deflection angle and the speed regulation of the second gearbox; The first gearbox is a multi-stage gearbox composed of multiple groups of gears, which is used to change the rotation speed of the blade. The input end of the first gearbox is connected to the shaft of the blade; The second gearbox is a hydro-mechanical continuously variable transmission, including a first adjusting seat (1) connected to the output end of the first gearbox, a second adjusting seat (2) connected to the shaft of the generator, and a steel belt arranged between the first adjusting seat (1) and the second adjusting seat (2) for adjusting the transmission ratio. The steel belt is mutually coordinated with the positions of the first cylinder (101) on the first adjusting seat (1) and the auxiliary cylinder (3) and the second cylinder (201) and the auxiliary cylinder (3) on the second adjusting seat (2) to adjust the transmission ratio. A brake disc (202) is arranged on the second cylinder (201) and is connected by a support rod and contacts the brake disc (4) arranged on the shaft of the generator for braking.

2. A range wind power generation monitoring and management system according to claim 1, characterized in that: The second adjusting seat (2) is the output end of the second gearbox, and the rotational speed of the output end of the second gearbox is denoted as , the first adjusting seat (1) is the input end of the second gearbox, and the rotational speed of the input end of the second gearbox is denoted as , the transmission shaft at the output end of the second gearbox is connected to the generator shaft, and the rotational speed of the output end and is calculated by the formula: ； Wherein, is the generator power, is the air density, is the shaft swept area, is the power coefficient.

3. A range-type wind power monitoring and management system according to claim 1, characterized in that: The adjustable range of the second transmission is based on and the transmission ratio of the second transmission to calculate the rotational speed change range at the input end of the second transmission . The rotational speed change range at the input end corresponds to the adjustable distances of the first adjusting seat (1) and the second adjusting seat (2), denoted as , and are respectively denoted as and at both end points. The rotational speed change range of and The calculation formula is as follows: ： ； ： ； Wherein, is the minimum input speed of the second transmission, is the maximum input speed of the second transmission, is the minimum transmission ratio of the second transmission, is the maximum transmission ratio of the second transmission, is the output speed of the second transmission.

4. A scope wind power generation monitoring and management system according to claim 1, characterized in that: The effective adjustment range is set within the adjustable range of the second transmission based on the torque change of the second transmission. The effective adjustment range corresponds to the adjustable distances of the first adjustment seat (1) and the second adjustment seat (2), denoted as , and are respectively denoted as and at both ends. Among them,[ < . The rotational speed of the effective adjustment range is denoted as . and . The transmission ratios at and are denoted as and . The calculation formulas for ： ； ： ； Among them, is the minimum input speed of the effective adjustment range, is the maximum input speed of the effective adjustment range, is the minimum transmission ratio of the effective adjustment range, is the maximum transmission ratio of the effective adjustment range, is the output speed of the second gearbox.

5. The range-type wind power monitoring and management system according to claim 1, characterized in that: According to the input end of the effective adjustment range , calculate the range of the blade rotation speed through the gear stages of the first transmission, and the blade rotation speed is denoted as , and the calculation formula is as follows: ； wherein is the rotational speed of the blade, is the transmission ratio of the first transmission, is the rotational speed within the effective adjustment range.

6. A range-type wind power monitoring and management system according to claim 5, characterized in that: According to the effective adjustment range to the rotational speed within, an evolutionary model of the adaptive change between the blade deflection angle and the wind speed is constructed, specifically including the following: Step 1, based on the blade rotation speed range, divide the range of the blade's deflectable angle into angles, and construct different angles, different wind speeds and blade rotation speed variation models, denoted as Model A; Step 2: Based on the blade rotation speed range, divide the wind speed range suitable for the generator into levels, and construct a variation model of the blade deflection angle and the blade rotation speed under different wind speed levels, denoted as Model B; ​ Step 3, based on the blade rotation speed Within the range, revise Model A and Model B by superposition, and evolve to construct Model C, and evolve to construct Model C.

7. A range wind power generation monitoring and management system according to claim 5, characterized in that: In Step 1, construct the variation models of wind speed and blade rotation speed The specific algorithm of the variation model is as follows. Calculate the ratio of blade rotation speed to wind speed through the formula , where , is the radius of the blade, is the rotation speed of the blade, is the wind speed; At different angles determine the effective range ; Calculated Adapted Wind Speed Range, i.e., the minimum suitable wind speed and the maximum suitable wind speed , specifically including the following: , .

8. A range-type wind power generation monitoring and management system according to claim 5, characterized in that: In step two, different wind speed levels are constructed Under the condition of The algorithm for the change model of the blade deflection angle and the blade rotation speed includes the following. Through the formula Calculate the blade rotation speed And the wind speed Ratio of , where Is the radius of the blade, Is the rotation speed of the blade, Is the wind speed; Under different wind speed levels calculate the rotational speed range of the rotating shaft , , corresponding to the , specifically including the following: , ; Obtain the blade deflection angle effective range .

9. A range-type wind power monitoring and management system according to claim 5, characterized in that: Model C is evolved and generated based on Model A and Model B by constructing a weighted adaptation function, and its functional formula is: ； Among them, is the weight coefficient, is the blade deflection angle of Model A and the influence degree on the blade rotation speed range; is the wind speed of Model A and the influence degree on the blade rotation speed range; is a constant; is the wind speed of Model B and the influence degree on the blade rotation speed range, is the blade deflection angle of Model B and the influence degree on the blade rotation speed range ; is a constant.

10. A method for monitoring wind power generation within a range according to any one of claims 1-9, characterized in that: Specifically, it includes the following: S1. Set the power generation amount According to the power generation amount The system will combine the effective adjustment range of the second transmission ~ to calculate the range of the blade rotation speed Based on the range The system will divide multiple adjustment units according to the matching between the deflection angle of the blade and the wind speed ; Among them, each of the multiple adjustment units uses the blade deflection angle as a judgment point, and all wind speeds within the range of the adapted blade rotational speed are included within each blade deflection angle range , and the adjustment of the blade deflection angle is based on the minimum wind speed and the maximum wind speed adapted at this angle, that is and as the adjustment points; S2. According to the wind speed , the system will adjust the blades to the corresponding angles. When the wind speed reaches and , the system will adjust the angles according to the corresponding adjustment units; S3. When the wind speed is at or below the of the minimum adjustment unit, that is, equal to or less than the starting operating wind speed of the generator, the wind turbine will stop operating. When the wind speed is at or above the of the maximum adjustment unit, the cylinder of the second gearbox will be forced to decelerate through disc braking.

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