A method and system for optimizing parameters of a double-regulated hydroelectric generator set

Abstract

The application belongs to the field of hydroelectric power generation, and particularly relates to a double-regulation hydroelectric generator set parameter optimization method and system. The method comprises the following steps: determining the regulation index of the hydroelectric generator set parameter optimization according to the operation interval; obtaining the optimal blade opening and the optimal guide vane opening according to the original coordinated working condition point corresponding to the blade opening, increasing or decreasing the blade opening based on the blade opening as the center; obtaining the first guide vane opening and the second guide vane opening of the optimal guide vane opening adjacent preset openings; obtaining the first blade opening and the second blade opening according to the first guide vane opening, the second guide vane opening and the original coordinated curve, and then combining the first guide vane opening, the second guide vane opening, the first coordinated curve and the second coordinated curve, keeping the optimal blade opening unchanged, and correcting the blade opening of the first coordinated curve and the second coordinated curve by using the interpolation method. The application has the effect of optimizing the coordinated curve according to the actual working condition, improving the power generation capacity of the hydroelectric generator set.

Description

TECHNICAL FIELD

[0001] The application belongs to the field of hydroelectric power generation, and particularly relates to a double-regulation hydroelectric generator set parameter optimization method and system. BACKGROUND

[0002] The double-regulation unit includes a propeller type axial flow and a bulb type tubular hydroelectric generator set. In the load regulation process, the guide vane and the paddle need to be cooperatively connected to achieve the highest water energy conversion efficiency and the optimal stability of the unit under the corresponding working condition.

[0003] In actual application, due to model test deviation, inaccurate measurement or given of the actual machine head, manufacturing and installation deviation of the actual machine, etc., the unit is not operated under the optimal cooperative connection relationship, which seriously affects the efficiency and stability of the unit, and thus the parameters of the hydroelectric generator set need to be optimized to operate under the optimal cooperative connection relationship.

[0004] In related technologies, in order to master whether the cooperative connection relationship meets the actual operation requirements of the unit, at a certain fixed head, the hydroelectric generator set cooperative connection optimization adopts a regulation mode of fixed paddle adjusting guide vane or fixed guide vane adjusting paddle. In the adjustment process, according to the unit power, flow passage inlet and outlet differential pressure, flow high and low pressure differential pressure, unit stability index and other data, the series of cooperative connection relationships under a certain fixed head are obtained according to the one-way change trend of relative efficiency. The series of cooperative connection relationships of adjacent heads are conventionally set to change in a one-way decreasing or increasing trend, and are adjusted within the respective range of each cooperative connection curve.

[0005] According to the above related technologies, due to the traditional regulation mode, the regulation is adjusted within the respective range, which leads to the fact that the cooperative connection relationship of a certain working condition point cannot cross the cooperative connection relationship curve of the adjacent head, and the optimized working condition points are not necessarily the optimal cooperative connection points, and the unit load still has a space for further optimization and improvement. SUMMARY

[0006] The technical problem to be solved by the application is to provide a double-regulation hydroelectric generator set parameter optimization method and system, which can optimize the cooperative connection curve according to the actual working condition and improve the power generation capacity of the hydroelectric generator set.

[0007] A double-regulation hydroelectric generator set parameter optimization method, comprising:

[0008] determining a running range of a hydroelectric generator set current head, the running range including a high head running range and a medium and low head running range;

[0009] determining a regulation index of the generator set parameter optimization according to the running range;

[0010] acquire a first coordinated curve corresponding to a first water head adjacent to the current water head, a second coordinated curve corresponding to a second water head, and an original coordinated curve of the current water head, the first water head being less than the current water head, and the second water head being greater than the current water head;

[0011] obtain a blade opening degree corresponding to an original coordinated working condition point according to the original coordinated curve;

[0012] increase or decrease the blade opening degree based on the blade opening degree to obtain an optimal blade opening degree and an optimal guide vane opening degree corresponding to an optimal adjustment index;

[0013] acquire a first guide vane opening degree and a second guide vane opening degree adjacent to a preset opening degree of the optimal guide vane opening degree;

[0014] obtain a first blade opening degree and a second blade opening degree according to the first guide vane opening degree, the second guide vane opening degree, and the original coordinated curve;

[0015] maintain the optimal blade opening degree unchanged, and correct the blade opening degrees of the first coordinated curve and the second coordinated curve by using an interpolation method according to the first blade opening degree, the second blade opening degree, the first guide vane opening degree, the second guide vane opening degree, the first coordinated curve, and the second coordinated curve.

[0016] Specifically, the parameter optimization of the hydroelectric generator set is to optimize the blade opening degree.

[0017] Optionally, the determining of the adjustment index of the parameter optimization of the generator set according to the operation interval includes:

[0018] when the operation interval is a medium-low water head operation interval, the adjustment index is maximum power of the hydroelectric generator set;

[0019] when the operation interval is a high water head operation interval, the adjustment index is the highest efficiency of the hydroelectric generator set.

[0020] Optionally, the acquiring of the first guide vane opening degree and the second guide vane opening degree adjacent to the preset opening degree of the optimal guide vane opening degree includes:

[0021] the first guide vane opening degree is obtained by adding the preset opening degree to the optimal guide vane opening degree;

[0022] the second guide vane opening degree is obtained by subtracting the preset opening degree from the optimal guide vane opening degree.

[0023] Optionally, the obtaining of the first blade opening degree and the second blade opening degree according to the first guide vane opening degree, the second guide vane opening degree, and the original coordinated curve includes:

[0024] the first blade opening degree is obtained by substituting the first guide vane opening degree into the original coordinated curve;

[0025] substituting the second guide vane opening into the original coordinated curve, a second blade opening is obtained.

[0026] Optionally, the method for keeping the optimal blade opening unchanged and correcting the blade openings of the first and second coordinated curves by using the interpolation method according to the first blade opening, the second blade opening, the first guide vane opening, the second guide vane opening, the first coordinated curve and the second coordinated curve comprises:

[0027] According to the interpolation method, an interpolation formula is obtained.

[0028] According to the first guide vane opening, the first coordinated curve and the second coordinated curve, a first to-be-adjusted blade opening and a second to-be-adjusted blade opening are obtained.

[0029] According to the second guide vane opening, the first coordinated curve and the second coordinated curve, a third to-be-adjusted blade opening and a fourth to-be-adjusted blade opening are obtained.

[0030] A first head distance of the current head from a head corresponding to the first coordinated curve and a second head distance of the current head from a head corresponding to the second coordinated curve are calculated.

[0031] If the first head distance is less than the second head distance, the third to-be-adjusted blade opening, the fourth to-be-adjusted blade opening, the first to-be-adjusted blade opening and the second to-be-adjusted blade opening are adjusted by using the interpolation formula, and the adjustment range of the first to-be-adjusted blade opening and the second to-be-adjusted blade opening is greater than that of the third to-be-adjusted blade opening and the fourth to-be-adjusted blade opening.

[0032] If the first head distance is less than the second head distance, the third to-be-adjusted blade opening, the fourth to-be-adjusted blade opening, the first to-be-adjusted blade opening and the second to-be-adjusted blade opening are adjusted by using the interpolation formula, and the adjustment range of the first to-be-adjusted blade opening and the second to-be-adjusted blade opening is greater than that of the third to-be-adjusted blade opening and the fourth to-be-adjusted blade opening.

[0033] Optionally, the interpolation formula comprises:

[0034]

[0035] wherein H is the current head, H j-1 is the second head, H j+1 is the first head, B2 is the second blade opening, B1 is the first blade opening, B 21 is the first to-be-adjusted blade opening, B 11 is the second to-be-adjusted blade opening, B 22a fourth to-be-adjusted blade opening degree, B 12 a third to-be-adjusted blade opening degree, G0 is a guide vane opening degree corresponding to an original coordinated operating point, G1 is a first water head, and G2 is a second water head.

[0036] Optionally, the increasing or decreasing the blade opening degree centered on the blade opening degree to obtain the optimal blade opening degree and the optimal guide vane opening degree corresponding to the optimal adjustment index comprises:

[0037] acquiring a hydroelectric generating set stability index during the increasing or decreasing the blade opening degree centered on the blade opening degree;

[0038] if the hydroelectric generating set stability value index is mutated, stopping increasing or decreasing the blade opening degree to obtain a current optimized range;

[0039] obtaining the optimal blade opening degree and the optimal guide vane opening degree corresponding to the optimal adjustment index according to the optimized range;

[0040] The stability index comprises a top cover vibration amount, a bearing frame vibration amount, and a water guide bearing vibration amount.

[0041] A double-regulation hydroelectric generating set parameter optimization system comprises:

[0042] a determination module configured to determine a running interval of a current water head of a hydroelectric generating set, the running interval comprising a high water head running interval and a medium-low water head running interval;

[0043] a judgment module configured to determine an adjustment index of a generating set parameter optimization according to the running interval;

[0044] a first acquisition module configured to acquire a first coordinated curve corresponding to a first water head adjacent to the current water head, a second coordinated curve corresponding to a second water head, and an original coordinated curve of the current water head, the first water head being smaller than the current water head, and the second water head being larger than the current water head;

[0045] a first matching module configured to obtain a blade opening degree corresponding to an original coordinated operating point according to the original coordinated curve;

[0046] a second matching module configured to increase or decrease the blade opening degree centered on the blade opening degree to obtain an optimal blade opening degree and an optimal guide vane opening degree corresponding to an optimal adjustment index;

[0047] a second acquisition module configured to acquire a first guide vane opening degree and a second guide vane opening degree of a preset opening degree adjacent to the optimal guide vane opening degree;

[0048] a third matching module configured to obtain a first blade opening degree and a second blade opening degree according to the first guide vane opening degree, the second guide vane opening degree, and the original coordinated curve.

[0049] The correction module is used for keeping the optimal blade opening unchanged, correcting the blade of the first coordinated curve and the second coordinated curve by using an interpolation method according to the first blade opening, the second blade opening, the first guide vane opening, the second guide vane opening, the first coordinated curve and the second coordinated curve.

[0050] The terminal device comprises a memory and a processor, the memory stores a computer program capable of running on the processor, and the processor loads and executes the computer program to adopt a double-regulation hydroelectric generator set parameter optimization method.

[0051] A computer readable storage medium stores a computer program, and the computer program is loaded and executed by a processor to adopt a double-regulation hydroelectric generator set parameter optimization method.

[0052] The beneficial effects of the present application are as follows: according to different operating intervals of the hydroelectric generator set, different regulation indexes are selected, the original coordinated working condition point corresponding to the current water head is obtained, then the optimal regulation index corresponding optimal blade opening and optimal guide vane opening are obtained by taking the original coordinated working condition point as the center and increasing or decreasing the blade opening, then the adjacent first guide vane opening and second guide vane opening are obtained according to the optimal guide vane opening, and the blade opening of the first coordinated curve and the second coordinated curve is corrected by using an interpolation method according to the first guide vane opening and the second guide vane opening, taking the optimal blade opening as the principle, compared with the traditional regulation mode, as long as the stability of the hydroelectric generator set does not change suddenly during the regulation process, whether the coordinated curves intersect or not can not be considered, the optimal coordinated working condition point is found, and the power generation capacity of the hydroelectric generator set is improved. BRIEF DESCRIPTION OF DRAWINGS

[0053] Figure 1 The figure is a schematic diagram of the coordinated curve of the present application;

[0054] Figure 2 The figure is a schematic diagram of the coordinated curve corrected by using an interpolation method of the present application. DETAILED DESCRIPTION

[0055] A double-regulation hydroelectric generator set parameter optimization method comprises the following steps:

[0056] S1, determining the operating interval of the current water head of the hydroelectric generator set, the operating interval comprising a medium-high water head operating interval and a low water head operating interval.

[0057] S2, determining the regulation index of the generator set parameter optimization according to the operating interval.

[0058] According to the operation interval, the adjustment index of the generator set parameter optimization includes:

[0059] When the operation interval is a low water head operation interval, the adjustment index is the maximum power of the hydroelectric generator set.

[0060] When the operation interval is a medium-high water head operation interval, the adjustment index is the highest efficiency of the hydroelectric generator set.

[0061] Specifically, the medium-high water head operation interval of the hydroelectric generator set cannot meet the full-load demand of all units of the power station due to the reservoir inflow, and the relative efficiency of the unit is optimized as the optimization target, and the low water head operation interval of the hydroelectric generator set is large due to the reservoir inflow, and the maximum power of the unit is optimized as the optimization target.

[0062] The demarcation line between the medium-high water head and the low water head of the hydroelectric generator set is the critical abandoned water head of the power station, and the demarcation line is a constant value after the hydroelectric power station is built.

[0063] S3, a first coordination curve corresponding to a first water head adjacent to the current water head, a second coordination curve corresponding to a second water head, and an original coordination curve of the current water head are obtained, the first water head is less than the current water head, and the second water head is greater than the current water head.

[0064] Specifically, the hydroelectric generator set has a coordination curve given by the manufacturer after being built, and the coordination curve describes the coordination relationship between the guide vane and the paddle of the hydroelectric generator set under a certain water head, and the coordination curve is as shown in Figure 1 .

[0065] S4, obtaining the paddle opening degree corresponding to the original coordination working condition point according to the original coordination curve.

[0066] Specifically, the coordination working condition point describes the performance of the unit under a certain fixed paddle opening degree and guide vane opening degree under the condition of a given water head and flow, and the performance is usually evaluated by power or efficiency.

[0067] S5, increasing or decreasing the paddle opening degree around the paddle opening degree to obtain the optimal paddle opening degree and the optimal guide vane opening degree corresponding to the optimal adjustment index.

[0068] Increasing or decreasing the paddle opening degree around the paddle opening degree to obtain the optimal paddle opening degree and the optimal guide vane opening degree corresponding to the optimal adjustment index includes:

[0069] During the process of increasing or decreasing the paddle opening degree around the paddle opening degree, the stability index of the hydroelectric generator set is obtained.

[0070] If the stability index of the hydroelectric generator set suddenly changes, stop increasing or decreasing the paddle opening degree to obtain the current optimized range.

[0071] The optimal blade opening degree and the optimal guide vane opening degree corresponding to the optimal adjustment index are obtained according to the optimized range.

[0072] The stability index includes the vibration amount of the top cover, the vibration amount of the load-bearing frame and the vibration amount of the water guide bearing.

[0073] Specifically, during the optimization process, the blade opening degree cannot be increased or decreased all the time. During the adjustment process, if the stability index changes suddenly or exceeds the standard, the sudden change is a large range change or a multiple increase, and even if the optimal adjustment index is not reached, the adjustment needs to be stopped and the optimization needs to be performed within the optimized range. The optimized range is a range in which the blade opening degree is increased or decreased from the optimal blade opening degree and the unit stability index does not change suddenly.

[0074] S6, obtaining a first guide vane opening degree and a second guide vane opening degree adjacent to the optimal guide vane opening degree.

[0075] The first guide vane opening degree and the second guide vane opening degree adjacent to the optimal guide vane opening degree include:

[0076] The first guide vane opening degree is obtained by adding the preset opening degree to the optimal guide vane opening degree.

[0077] The second guide vane opening degree is obtained by subtracting the preset opening degree from the optimal guide vane opening degree.

[0078] Specifically, the specific value of the preset opening degree can be set by itself, and is usually 5% to 10%, that is, two guide vane opening degrees adjacent to the optimal guide vane opening degree on the left and right sides thereof differ by the preset opening degree, and are respectively the first guide vane opening degree and the second guide vane opening degree.

[0079] S7, obtaining a first blade opening degree and a second blade opening degree according to the first guide vane opening degree, the second guide vane opening degree and the original coordination curve.

[0080] The first blade opening degree and the second blade opening degree are obtained according to the first guide vane opening degree, the second guide vane opening degree and the original coordination curve, and include:

[0081] The first blade opening degree is obtained by substituting the first guide vane opening degree into the original coordination curve.

[0082] The second blade opening degree is obtained by substituting the second guide vane opening degree into the original coordination curve.

[0083] S8, maintaining the optimal blade opening degree unchanged, and correcting the blade opening degrees of the first coordination curve and the second coordination curve by using an interpolation method according to the first blade opening degree, the second blade opening degree, the first guide vane opening degree, the second guide vane opening degree, the first coordination curve and the second coordination curve.

[0084] As Figure 2As shown, according to the first blade opening degree, the second blade opening degree, the first guide vane opening degree, the second guide vane opening degree, the first coordinated curve and the second coordinated curve, the optimal blade opening degree is kept unchanged, and the interpolation method is used to correct the blade opening degree of the first coordinated curve and the second coordinated curve, which includes:

[0085] According to the interpolation method, an interpolation formula is obtained.

[0086] According to the first guide vane opening degree, the first coordinated curve and the second coordinated curve, the first to-be-adjusted blade opening degree and the second to-be-adjusted blade opening degree are obtained.

[0087] According to the second guide vane opening degree, the first coordinated curve and the second coordinated curve, the third to-be-adjusted blade opening degree and the fourth to-be-adjusted blade opening degree are obtained.

[0088] The first head distance of the current head and the head corresponding to the first coordinated curve and the second head distance of the current head and the head corresponding to the second coordinated curve are calculated.

[0089] If the first head distance is less than the second head distance, the interpolation formula is used to adjust the third to-be-adjusted blade opening degree, the fourth to-be-adjusted blade opening degree, the first to-be-adjusted blade opening degree and the second to-be-adjusted blade opening degree, and the adjustment range of the first to-be-adjusted blade opening degree and the second to-be-adjusted blade opening degree is greater than that of the third to-be-adjusted blade opening degree and the fourth to-be-adjusted blade opening degree.

[0090] If the first head distance is less than the second head distance, the interpolation formula is used to adjust the third to-be-adjusted blade opening degree, the fourth to-be-adjusted blade opening degree, the first to-be-adjusted blade opening degree and the second to-be-adjusted blade opening degree, and the adjustment range of the first to-be-adjusted blade opening degree and the second to-be-adjusted blade opening degree is greater than that of the third to-be-adjusted blade opening degree and the fourth to-be-adjusted blade opening degree.

[0091] Specifically, when adjusting, the coordinated curve corresponding to the head closer to the current head has a relatively greater influence on optimization, therefore, if the first head distance is less than the second head distance, the first coordinated curve is mainly adjusted, that is, the adjustment range of the first to-be-adjusted blade opening degree and the second to-be-adjusted blade opening degree is relatively greater than that of the third to-be-adjusted blade opening degree and the fourth to-be-adjusted blade opening degree, and the specific value of the adjustment range can be set by oneself, if the first head distance is greater than the second head distance, the second coordinated curve is mainly adjusted, and the adjustment range of the third to-be-adjusted blade opening degree and the fourth to-be-adjusted blade opening degree is relatively greater.

[0092] The interpolation formula includes:

[0093]

[0094] Wherein, H is the current head, H j-1 is the second head, H j+1B2 is a second blade opening, B1 is a first blade opening, B 21 B2 is a second blade opening, B1 is a first blade opening, B 11 B2 is a second blade opening, B1 is a first blade opening, B 22 B2 is a second blade opening, B1 is a first blade opening, B 12 B2 is a second blade opening, B1 is a first blade opening, B

[0095] In the optimization process, the current head closer to the head corresponding to the coordinated curve is optimized first, and the guide vane opening is optimized from small to large first.

[0096] Table 1 is the adjusted blade opening when the coordinated curve of the hydroelectric generating set is optimized.

[0097] Table 1

[0098]

[0099] After the optimization of the coordinated curve is completed, according to the change trend of the high head efficiency optimal region of each unit, the power difference of the unit under the same guide vane and water head condition, the advantages and disadvantages of the unit output in the medium and high head section are determined. Under the premise of meeting the safe and stable operation of the unit, when the upstream water flow is less than the full load flow of a unit, the unit with the optimal output performance is started first, and so on, to further guide the power station to carry out differentiated optimization scheduling and starting sequence between units.

[0100] The water head of the double-regulation hydroelectric generating set should be measured by the difference pressure between the inlet of the flow channel and the outlet of the tail water pipe, and the difference value between the downstream tail water level and the downstream tail water level after the trash screen, and the like. The collected water head of the speed regulator can effectively eliminate the unstable influence of the grid pressure caused by the accumulation of the trash screen at the inlet, and improve the accuracy of the water head collection.

[0101] Compared with the traditional adjustment mode, if the coordinated curve crosses during the optimization process, the traditional adjustment mode will cause calculation logic error of the CPU of the unit speed regulator (the denominator is 0 when crossing), thereby causing optimization failure. In the present application, H j-1 , H and H j+1 will not be equal, so the denominator will not be 0, so the optimization range is wider and the optimization effect is better.

[0102] A double-regulation hydroelectric generating set parameter optimization system, comprising:

[0103] A determination module is configured to determine a running interval of a current water head of a hydroelectric generating set, wherein the running interval comprises a high head running interval and a medium and low head running interval.

[0104] A judgment module is configured to determine an adjustment index of generator set parameter optimization according to the operation interval;

[0105] The first acquisition module is configured to acquire a first governing curve corresponding to a first water head adjacent to the current water head, a second governing curve corresponding to a second water head, and an original governing curve of the current water head, wherein the first water head is less than the current water head, and the second water head is greater than the current water head;

[0106] The first matching module is configured to obtain a blade opening degree corresponding to an original governing working condition point according to the original governing curve;

[0107] The second matching module is configured to increase or decrease the blade opening degree with the blade opening degree as the center to obtain an optimal blade opening degree and an optimal guide vane opening degree corresponding to an optimal adjustment index;

[0108] The second acquisition module is configured to acquire a first guide vane opening degree and a second guide vane opening degree adjacent to a preset opening degree of the optimal guide vane opening degree;

[0109] The third matching module is configured to obtain a first blade opening degree and a second blade opening degree according to the first guide vane opening degree, the second guide vane opening degree, and the original governing curve;

[0110] The correction module is configured to keep the optimal blade opening degree unchanged and correct the blade opening degrees of the first governing curve and the second governing curve by using an interpolation method according to the first blade opening degree, the second blade opening degree, the first guide vane opening degree, the second guide vane opening degree, the first governing curve, and the second governing curve.

[0111] The embodiment of the application further discloses a terminal device including a memory and a processor, the memory stores a computer program capable of running on the processor, and the processor loads and executes the computer program.

[0112] The terminal device can be a computer device such as a desktop computer, a notebook computer, or a cloud server, and the terminal device includes but is not limited to a processor and a memory. For example, the terminal device can further include an input / output device, a network access device, and a bus.

[0113] The processor can be a central processing unit (CPU), and can also be a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA), or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, etc. The general-purpose processor can be a microprocessor or any conventional processor, and the application does not limit this.

[0114] The memory can be an internal storage unit of the terminal device, for example, a hard disk or a memory of the terminal device, or an external storage device of the terminal device, for example, a plug-in hard disk, a smart memory card (SMC), a secure digital card (SD), or a flash card (FC) equipped on the terminal device, or a combination of the internal storage unit and the external storage device of the terminal device. The memory is used to store a computer program and other programs and data required by the terminal device, and can also be used to temporarily store data that has been output or will be output. The present application does not limit this.

[0115] The terminal device stores the parameter optimization method of the double-regulation hydroelectric generating set in the memory of the terminal device, and loads and executes the method on the processor of the terminal device, so as to facilitate use.

[0116] The computer readable storage medium stores the computer program, and the computer program adopts the parameter optimization method of the double-regulation hydroelectric generating set in the above embodiment when executed by the processor.

[0117] The computer program can be stored in the computer readable medium, and the computer program includes computer program code in the form of source code, object code, an executable file, or some middleware, etc. The computer readable medium includes any entity or device, recording medium, U disk, mobile hard disk, magnetic disk, optical disk, computer memory, read-only memory (ROM), random access memory (RAM), electric carrier wave signal, telecommunication signal, and software distribution medium, etc. that can carry the computer program code. It should be noted that the computer readable medium includes but is not limited to the above-mentioned elements.

[0118] The computer readable storage medium stores the parameter optimization method of the double-regulation hydroelectric generating set in the computer readable storage medium, and loads and executes the method on the processor, so as to facilitate storage and application of the method.

[0119] It should be understood by those skilled in the art that the above discussion of any embodiment is only exemplary and is not intended to imply that the protection scope of the present application is limited to these examples; the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other changes of different aspects of one or more embodiments of the present application as described above. In order to be brief, they are not provided in detail.

[0120] It is intended that the embodiments of the application herein disclosed meet all the written requirements of the patent statutes and come within the judicial doctrines of equivalents and will not be construed to be limited to the embodiments shown and described and by the keeping within the spirit and scope of the embodiments of the application.

Claims

1. A method for optimizing parameters of a dual-regulating hydro-generator unit, characterized in that, include: Determine the operating range of the hydropower unit at its current head, which includes a medium-high head operating range and a low head operating range; Based on the operating range, determine the adjustment index for optimizing generator set parameters; Obtain the first coherence curve corresponding to the first water head adjacent to the current water head, the second coherence curve corresponding to the second water head, and the original coherence curve of the current water head, wherein the first water head is less than the current water head, and the second water head is greater than the current water head; The blade opening corresponding to the original coordinating operating point is obtained from the original coordinating curve. Taking the blade opening corresponding to the original co-operation point as the center, increase or decrease the blade opening to obtain the optimal blade opening and optimal guide vane opening corresponding to the optimal adjustment index. Obtain the first guide vane opening and the second guide vane opening adjacent to the optimal guide vane opening; Based on the first guide vane opening, the second guide vane opening, and the original coherence curve, the first blade opening and the second blade opening are obtained. Based on the first blade opening, the second blade opening, the first guide vane opening, the second guide vane opening, the first coordination curve, and the second coordination curve, while keeping the optimal blade opening unchanged, the blade opening of the first coordination curve and the second coordination curve is corrected by interpolation. The adjustment indicators for optimizing generator set parameters based on the operating range include: When the operating range is a low head operating range, the adjustment index is the maximum power of the hydropower unit; When the operating range is a medium-high head operating range, the adjustment index is the highest efficiency of the hydropower unit; The step of correcting the blade opening of the first and second coordination curves using interpolation, while keeping the optimal blade opening constant, based on the first blade opening, the second blade opening, the first guide vane opening, the second guide vane opening, the first coordination curve, and the second coordination curve, includes: Based on the interpolation method described above, the interpolation formula is obtained; Based on the first guide vane opening, the first coordination curve, and the second coordination curve, the first blade opening to be adjusted and the second blade opening to be adjusted are obtained. Based on the second guide vane opening, the first coordinating curve, and the second coordinating curve, the third and fourth blade openings to be adjusted are obtained. Calculate the first head distance between the current head and the head corresponding to the first coherence curve, and the second head distance between the current head and the head corresponding to the second coherence curve; If the first head distance is less than the second head distance, then the third blade opening, the fourth blade opening, the first blade opening, and the second blade opening are adjusted using an interpolation formula. The adjustment range of the first blade opening and the second blade opening is greater than that of the third blade opening and the fourth blade opening. If the first head distance is less than the second head distance, then the third blade opening, the fourth blade opening, the first blade opening and the second blade opening are adjusted using an interpolation formula. The adjustment range of the first blade opening and the second blade opening is less than that of the third blade opening and the fourth blade opening. The interpolation formula includes: ； Where H is the current water head, For the second water head, For the first water head, For the second blade opening, For the first blade opening, The first blade opening to be adjusted For the second blade opening to be adjusted, The fourth blade opening to be adjusted The third blade opening to be adjusted For the guide vane opening corresponding to the original coordinated operating point, For the opening of the first guide vane and This refers to the opening of the second guide vane.

2. The parameter optimization method for a dual-regulating hydro-generator unit as described in claim 1, characterized in that, The process of obtaining the first guide vane opening and the second guide vane opening adjacent to the optimal guide vane opening includes: The optimal guide vane opening is added to the preset opening to obtain the second guide vane opening; The first guide vane opening is obtained by subtracting the preset opening from the optimal guide vane opening.

3. The parameter optimization method for a dual-regulating hydro-generator unit as described in claim 1, characterized in that, The step of obtaining the first blade opening and the second blade opening based on the first guide vane opening, the second guide vane opening, and the original coherence curve includes: Substituting the first guide vane opening into the original coherence curve, we obtain the first blade opening. Substituting the second guide vane opening into the original coherence curve yields the second blade opening.

4. The parameter optimization method for a dual-regulating hydro-generator unit as described in claim 1, characterized in that, The step of increasing or decreasing the blade opening, centered on the original coordinated operating point, to obtain the optimal blade opening and optimal guide vane opening corresponding to the optimal adjustment index includes: Taking the blade opening as the center, the stability index of the hydropower unit is obtained during the process of increasing or decreasing the blade opening; If the stability index of the hydropower unit changes abruptly, stop increasing or decreasing the blade opening to obtain the current optimized range; Based on the optimized range, the optimal blade opening and optimal guide vane opening corresponding to the optimal adjustment index are obtained; The stability indicators include the vibration of the top cover, the vibration of the load-bearing frame, and the vibration of the water-guided bearing.

5. A parameter optimization system for a dual-regulating hydro-generator unit, characterized in that, include: The determination module is used to determine the operating range of the current head of the hydropower unit, which includes a high head operating range and a medium-low head operating range; The judgment module is used to determine the adjustment index for optimizing the generator set parameters based on the operating range. The first acquisition module is used to acquire the first coherence curve corresponding to the first water head adjacent to the current water head, the second coherence curve corresponding to the second water head, and the original coherence curve of the current water head, wherein the first water head is less than the current water head, and the second water head is greater than the current water head; The first matching module is used to obtain the blade opening corresponding to the original coordinating operating point based on the original coordinating curve. The second matching module is used to increase or decrease the blade opening with the blade opening as the center to obtain the optimal blade opening and the optimal guide vane opening corresponding to the optimal adjustment index. The second acquisition module is used to acquire the first guide vane opening and the second guide vane opening adjacent to the optimal guide vane opening. The third matching module is used to obtain the first blade opening and the second blade opening based on the first guide vane opening, the second guide vane opening, and the original coherence curve. The correction module is used to correct the blade opening of the first and second coordinating curves by interpolation, while keeping the optimal blade opening unchanged, based on the first blade opening, the second blade opening, the first guide vane opening, the second guide vane opening, the first coordinating curve, and the second coordinating curve. The adjustment indicators for optimizing generator set parameters based on the operating range include: When the operating range is a low head operating range, the adjustment index is the maximum power of the hydropower unit; When the operating range is a medium-high head operating range, the adjustment index is the highest efficiency of the hydropower unit; The step of correcting the blade opening of the first and second coordination curves using interpolation, while keeping the optimal blade opening constant, based on the first blade opening, the second blade opening, the first guide vane opening, the second guide vane opening, the first coordination curve, and the second coordination curve, includes: Based on the interpolation method described above, the interpolation formula is obtained; Based on the first guide vane opening, the first coordination curve, and the second coordination curve, the first blade opening to be adjusted and the second blade opening to be adjusted are obtained. Based on the second guide vane opening, the first coordinating curve, and the second coordinating curve, the third and fourth blade openings to be adjusted are obtained. Calculate the first head distance between the current head and the head corresponding to the first coherence curve, and the second head distance between the current head and the head corresponding to the second coherence curve; If the first head distance is less than the second head distance, then the third blade opening, the fourth blade opening, the first blade opening, and the second blade opening are adjusted using an interpolation formula. The adjustment range of the first blade opening and the second blade opening is greater than that of the third blade opening and the fourth blade opening. If the first head distance is less than the second head distance, then the third blade opening, the fourth blade opening, the first blade opening and the second blade opening are adjusted using an interpolation formula. The adjustment range of the first blade opening and the second blade opening is less than that of the third blade opening and the fourth blade opening. The interpolation formula includes: ； Where H is the current water head, For the second water head, For the first water head, For the second blade opening, For the first blade opening, The first blade opening to be adjusted For the second blade opening to be adjusted, The fourth blade opening to be adjusted The third blade opening to be adjusted For the guide vane opening corresponding to the original coordinated operating point, For the opening of the first guide vane and This refers to the opening of the second guide vane.

6. A terminal device, comprising a memory and a processor, characterized in that, The memory stores a computer program that can run on a processor, and when the processor loads and executes the computer program, it employs the method described in any one of claims 1 to 4.

7. A computer-readable storage medium storing a computer program, characterized in that, When the computer program is loaded and executed by the processor, it employs the method described in any one of claims 1 to 4.

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