Air brake control method of generator set and related equipment
Through multi-stage safety judgment logic, the status of the generator set and the position of the wind gate are judged, and the wrong input of the wind gate is prevented at high speed or unexpected conditions, and the mechanical wear and dust pollution caused by the misoperation of the wind gate is solved, thereby achieving stable operation and safety improvement of the equipment.
Patent Information
- Application Number
- CN202510648851.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-20
- Publication Date
- 2025-07-18
AI Technical Summary
In the prior art, the wind gate is accidentally put into brake when the water wheel generator set is operating normally or at a high speed, resulting in mechanical wear and dust pollution, affecting the safe and stable operation of the equipment.
By setting up multi-stage safety judgment logic, we can determine whether the generator set is in operation, whether the wind gate position is correct, and the contact state of the locked brake wind gate relay, ensuring that the braking operation is performed only under safe conditions and avoid misinjection.
It improves the safety and reliability of the braking process, reduces mechanical wear and dust pollution, extends the service life of the equipment, and ensures the stable operation and on-site operation of the generator set.
Smart Images
Figure CN120332066A_ABST
Abstract
Description
Technical Field
[0001] The present disclosure relates to the technical field of power systems and their automation, and particularly to a wind brake control method for a generator set and related equipment. Background Art
[0002] The wind brake control system is an essential part of a hydro-generator set, mainly used to ensure the safety and stability of the unit during the shutdown process. Usually, when the speed of the hydro-generator set drops to about 20% of the rated speed, the wind brake control system is activated to brake the unit. This measure aims to avoid damage to the bearing bushes caused by insufficient lubrication during low-speed operation, thereby effectively protecting key mechanical components and ensuring the integrity and long-term reliability of the equipment.
[0003] However, during actual operation, due to improper human operation or incorrect braking commands sent by the monitoring system, the wind brakes are often mis-activated during normal operation or high-speed operation of the unit; this situation can easily lead to severe wear of the wind brakes, generate a large amount of dust, pollute the internal environment of the generator, and even cause damage to the unit components, posing a major hidden danger to the safe and stable operation of the equipment. Summary of the Invention
[0004] The present disclosure aims to at least solve one of the technical problems in the related art to some extent.
[0005] To this end, the present disclosure provides a wind brake control method for a generator set and related equipment. By setting a multi-level safety judgment logic, after receiving a wind brake braking command, it is first determined whether the generator set is in an operating state to avoid mis-activating the wind brake during the operation of the unit and prevent equipment damage caused by braking under high speed or loaded conditions; when it is confirmed that the unit is not in an operating state, it is further determined whether each wind brake has reached the set braking position to avoid unnecessary wear caused by repeated actions; when the wind brake is not in place, the contact state of the locking brake wind brake relay is further detected to ensure that the braking operation is only allowed when safety conditions (such as the speed is lower than the set threshold) are met; through this control logic, the mis-activation of the wind brake under high speed or unexpected conditions is effectively prevented, the safety and reliability of the braking process are improved, mechanical wear and dust pollution are reduced, the service life of the equipment is extended, and the stable operation of the generator set and the safety of on-site operations are ensured.
[0006] The first aspect embodiment of the present disclosure provides a method for controlling the brake of a generator set, which is applied to a brake control system of the generator set, including: in response to receiving a brake command associated with the generator set, determining whether the generator set is in an operating state; in the case where the generator set is not in an operating state, determining whether each brake associated with the generator set is in a corresponding set braking position; in the case where each brake is not in the corresponding set braking position, detecting whether the contact of the locked brake relay associated with the generator set is disconnected; wherein, the locked brake relay is arranged in the brake input control loop of the brake control system; in response to the contact of the locked brake relay not being disconnected, performing brake control on each brake.
[0007] The second aspect embodiment of the present disclosure provides a brake control system of a generator set. The brake control system includes a locked brake relay, and the locked brake relay is located in the brake input control loop of the brake control system; the brake control system further includes: a controller; wherein, the controller is used to execute the method for controlling the brake of the generator set described in the first aspect embodiment above.
[0008] The third aspect embodiment of the present disclosure provides a brake control device of a generator set, which is applied to a brake control system of the generator set, including: a first judgment module, configured to determine whether the generator set is in an operating state in response to receiving a brake command associated with the generator set; a second judgment module, configured to determine whether each brake associated with the generator set is in a corresponding set braking position in the case where the generator set is not in an operating state; a detection module, configured to detect whether the contact of the locked brake relay associated with the generator set is disconnected in the case where each brake is not in the corresponding set braking position; wherein, the locked brake relay is arranged in the brake input control loop of the brake control system; a control module, configured to perform brake control on each brake in response to the contact of the locked brake relay not being disconnected.
[0009] The fourth aspect embodiment of the present disclosure provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, it implements the method for controlling the brake of the generator set described in the first aspect embodiment of the present disclosure.
[0010] The fifth aspect embodiment of the present disclosure provides a computer program product. When the instructions in the computer program product are executed by a processor, it implements the method for controlling the brake of the generator set described in the first aspect embodiment of the present disclosure.
[0011] The additional aspects and advantages of the present disclosure will be partly given in the following description, partly will become obvious from the following description, or will be understood through the practice of the present disclosure. Description of the Drawings
[0012] The above and / or additional aspects and advantages of the present disclosure will become apparent and be readily understood from the following description of embodiments in conjunction with the drawings, where:
[0013] Figure 1 It is a schematic flowchart of a method for controlling the air brakes of a generator set provided by an embodiment of the present disclosure;
[0014] Figure 2 It is a schematic diagram of the principle of a control circuit for engaging the braking air brakes provided by an embodiment of the present disclosure;
[0015] Figure 3 It is a schematic flowchart of another method for controlling the air brakes of a generator set provided by an embodiment of the present disclosure;
[0016] Figure 4 It is a schematic diagram of the principle of a method for controlling the air brakes of a generator set provided by an embodiment of the present disclosure;
[0017] Figure 5 It is a schematic structural diagram of an air brake control system provided by an embodiment of the present disclosure;
[0018] Figure 6 It is a schematic structural diagram of an air brake control device for a generator set provided by an embodiment of the present disclosure. Detailed Embodiments
[0019] The embodiments of the present disclosure will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present disclosure and should not be construed as a limitation of the present disclosure.
[0020] It should be noted that in the technical solutions of the present disclosure, the collection, gathering, updating, analysis, processing, use, transmission, storage, etc. of the user's personal information all comply with the provisions of relevant laws and regulations, are used for legal purposes, and do not violate public order and good customs. Necessary measures are taken for the user's personal information to prevent illegal access to the user's personal information data, and to safeguard the security of the user's personal information, network security, and national security.
[0021] The present disclosure provides a method for controlling the air brakes of a generator set and related equipment.
[0022] The method for controlling the air brakes of a generator set and related equipment according to the embodiments of the present disclosure will be described below with reference to the drawings.
[0023] Figure 1Schematic flowchart of a method for controlling the wind brakes of a generator set provided by an embodiment of the present disclosure. It should be noted that the method for controlling the wind brakes of the generator set in the embodiment of the present disclosure can be applied to a wind brake control device of the generator set, and the device can be configured in a wind brake control system.
[0024] As Figure 1 shown, the method for controlling the wind brakes of the generator set may include the following steps:
[0025] Step 101, in response to receiving a wind brake braking instruction associated with the generator set, determine whether the generator set is in an operating state.
[0026] It should be understood that in the case where the generator set is operating (such as in an idling state, no-load state, or grid-connected state), directly engaging the wind brake braking may cause serious mechanical damage or safety accidents. Only when it is confirmed that the generator set is in a non-operating state can the wind brake braking be started. Among them, the generator set can be a hydro-generator set.
[0027] In order to avoid potential mechanical damage and safety hazards and ensure the safety of the equipment, in the embodiment of the present disclosure, when receiving a wind brake braking instruction associated with the generator set, first determine whether the generator set is in an operating state, where the operating state includes an idling state, a no-load state, and a grid-connected state.
[0028] Among them, the idling state is used to indicate that the generator set is operating but not generating electricity; the no-load state is used to indicate that the generator set is ready to generate electricity but has not output electricity; the grid-connected state is used to indicate that the generator set is connected to the power grid and outputting electricity.
[0029] Step 102, in the case where the generator set is not in an operating state, determine whether each wind brake associated with the generator set is in a corresponding set braking position.
[0030] In order to avoid unnecessary losses caused by repeated operations, in the embodiment of the present disclosure, position sensors are installed on each wind brake, and these position sensors can real-time feedback the specific position information of the wind brake. Therefore, after confirming that the generator set has stopped operating, further determine whether each wind brake associated with the generator set is in a corresponding set braking position according to the position information feedback by the position sensors on each wind brake.
[0031] Step 103, in the case where each wind brake is not in a corresponding set braking position, detect whether the contacts of the locking brake wind brake relay associated with the generator set are disconnected.
[0032] Among them, the locking brake wind brake relay is arranged in the braking wind brake input control loop of the wind brake control system.
[0033] To avoid misoperation of the air brakes, in the embodiments of the present disclosure, when each air brake is not in the corresponding set braking position, further detect whether the contacts of the locking brake air brake relay are disconnected. It should be noted that, as Figure 2 shown, the locking brake air brake relay ( Figure 2 J55 in
[0034] ) is arranged in the braking air brake input control loop of the air brake control system and determines the state of its contacts according to specific conditions (such as the signal provided by the speed sensor). For example, when the speed of the generator set is greater than the set threshold, control the contacts of the locking relay to disconnect; when the speed of the generator set is less than or equal to the set threshold, control the contacts of the locking relay to close.
[0035] In the embodiments of the present disclosure, if the contacts of the locking brake air brake relay are not disconnected, it means that the current working condition detected by the air brake control system is suitable for braking operation, that is, perform braking control on each air brake.
[0036] In addition, it should also be noted that when at least one of the following set conditions is met, refuse to perform braking control on each air brake: Among them, at least one set condition includes: the generator set is in an operating state; there is at least one target air brake among each air brake; among them, the target air brake is in the corresponding set braking position, and the contacts of the locking brake air brake relay are disconnected.
[0037] In summary, by setting a multi-level safety judgment logic, after receiving the air brake braking instruction, first judge whether the generator set is in an operating state to avoid misoperation of the air brake during the operation of the unit and prevent equipment damage caused by braking under high speed or load conditions; when it is confirmed that the unit is not in an operating state, further judge whether each air brake has reached the set braking position to avoid unnecessary wear caused by repeated actions; when the air brake is not in place, further detect the contact state of the locking brake air brake relay to ensure that the braking operation is only allowed when the safety conditions (such as the speed is lower than the set threshold) are met; through this control logic, effectively prevent the air brake from being misoperated at high speed or in an unexpected state, improve the safety and reliability of the braking process, reduce mechanical wear and dust pollution, extend the service life of the equipment, and ensure the stable operation of the generator set and the safety of on-site operations.
[0038] To clearly illustrate how to judge whether each air brake associated with the generator set is in the corresponding set braking position when the generator set is not in an operating state in the above embodiments, the present disclosure proposes another air brake control method for the generator set.
[0039] Figure 3Schematic flowchart of another method for controlling the air brakes of a generator set provided by an embodiment of the present disclosure.
[0040] As Figure 3 shown, the method for controlling the air brakes of the generator set may include the following steps:
[0041] Step 301, in response to receiving an air brake braking instruction associated with the generator set, determine whether the generator set is in an operating state.
[0042] Step 302, in the case where the generator set is not in an operating state, detect the position feedback signals of each air brake.
[0043] It should be noted that position sensors (such as limit switches, proximity sensors, or encoders) are installed on each air brake, and these sensors can monitor the specific position of the air brake in real time and send this information as a position feedback signal to the air brake control system.
[0044] Step 303, based on the position feedback signals, determine whether each air brake is in the corresponding set braking position.
[0045] In order to prevent unnecessary losses caused by misoperations and repeated actions and timely detect potential mechanical or control system problems, in the embodiment of the present disclosure, based on the data of the position sensors of each air brake, the air brake control system monitors and analyzes the position of each air brake to determine whether each air brake has exited the set braking position.
[0046] Step 304, in the case where each air brake is not in the corresponding set braking position, detect whether the contacts of the locking air brake relay associated with the generator set are disconnected.
[0047] Among them, the locking air brake relay is arranged in the braking air brake input control loop of the air brake control system.
[0048] Step 305, in response to the contacts of the locking air brake relay not being disconnected, perform braking control on each air brake.
[0049] In summary, by detecting the position feedback signals of each air brake in the case where the generator set is not in an operating state; based on the position feedback signals, determining whether each air brake is in the corresponding set braking position, thus, by real-time monitoring and accurate judgment of the air brake position, determining whether each air brake has exited the set braking position, effectively avoiding unnecessary repeated operations, reducing mechanical wear and system losses, and extending the service life of the equipment.
[0050] Based on any embodiment of the present disclosure, as Figure 4 shown, the method for controlling the air brakes of the generator set includes the following steps:
[0051] 1. Input the brake air brake command
[0052] That is, a brake command associated with the generator set is received;
[0053] 2. Determine the unit status
[0054] When a brake command associated with the generator set is received, determine whether the generator set is in an operating state;
[0055] 3. Determine whether each air brake associated with the generator set is disengaged;
[0056] That is, when the generator set is not in an operating state, determine whether each air brake associated with the generator set is in the corresponding set braking position;
[0057] 4. Detect the contacts of the locking brake air brake relay
[0058] That is, when each air brake is not in the corresponding set braking position, detect whether the contacts of the locking brake air brake relay associated with the generator set are open, and perform brake control on each air brake when the contacts of the locking brake air brake relay are not open.
[0059] That is, when the generator is not in an operating state, all air brakes are disengaged from the set braking position, and the contacts of the locking brake air brake relay are not open, respond to the received air brake command to perform brake control on each air brake.
[0060] To implement the above embodiments, the present disclosure also proposes an air brake control system.
[0061] Figure 5 It is a schematic structural diagram of an air brake control system provided by an embodiment of the present disclosure.
[0062] As Figure 5 shown, the air brake control system 500 includes: a locking brake air brake relay 510 and a controller 520.
[0063] Among them, the controller 520 is used to execute the air brake control method of the generator set in any of the above embodiments.
[0064] The wind brake control system according to the embodiments of the present disclosure. The controller sets a multi-level safety judgment logic. After receiving the wind brake braking instruction, it first judges whether the generator set is in the operating state to avoid misoperation of the wind brake during the operation of the unit and prevent equipment damage caused by braking under high speed or loaded state. After confirming that the unit is not in the operating state, it further judges whether each wind brake has reached the set braking position to avoid unnecessary wear caused by repeated actions. When the wind brake is not in place, it further detects the contact state of the locking brake wind brake relay to ensure that the braking operation is only allowed when safety conditions (such as the speed is lower than the set threshold) are met. Through this control logic, it effectively prevents the wind brake from being misoperated at high speed or in an unexpected state, improves the safety and reliability of the braking process, reduces mechanical wear and dust pollution, extends the service life of the equipment, and ensures the stable operation of the generator set and the safety of on-site operations.
[0065] Corresponding to Figures 1 to 4 the wind brake control method provided in the above Figures 1 to 4 embodiment, the present disclosure also provides a wind brake control device. Since the wind brake control device provided in the embodiments of the present disclosure corresponds to the wind brake control method provided in the above
[0066] Figure 6 is a schematic structural diagram of a wind brake control device for a generator set provided by the embodiments of the present disclosure.
[0067] As Figure 6 shown, the wind brake control device 600 of the generator set includes: a first judgment module 610, a second judgment module 620, a detection module 630, and a control module 640.
[0068] Among them, the first judgment module 610 is used to judge whether the generator set is in the operating state in response to receiving a wind brake braking instruction associated with the generator set; the second judgment module 620 is used to judge whether each wind brake associated with the generator set is in the corresponding set braking position when the generator set is not in the operating state; the detection module 630 is used to detect whether the contacts of the locking brake wind brake relay associated with the generator set are disconnected when each wind brake is not in the corresponding set braking position; wherein, the locking brake wind brake relay is arranged in the braking wind brake input control loop of the wind brake control system; the control module 640 is used to perform braking control on each wind brake in response to the contacts of the locking brake wind brake relay not being disconnected.
[0069] As a possible implementation manner, the locking brake wind brake relay is controlled by the following module: a processing module.
[0070] Wherein, the processing module is configured to control the contact of the blocking relay to disconnect when the rotational speed of the generator set is greater than the set threshold; the processing module is further configured to control the contact of the blocking relay to close when the rotational speed of the generator set is less than or equal to the set threshold.
[0071] As a possible implementation manner, the second determination module is configured to: detect the position feedback signals of the respective braking clutches when the generator set is not in the operating state; determine whether the respective braking clutches are in the corresponding set braking positions according to the respective position feedback signals.
[0072] As a possible implementation manner, the operating state includes any one of the following: idling state; wherein, the idling state is used to indicate that the generator set is operating but not generating electricity; no-load state; wherein, the no-load state is used to indicate that the generator set is in a state of preparing to generate electricity but not outputting electricity; grid-connected state; wherein, the grid-connected state is used to indicate that the generator set is connected to the power grid and outputting electricity.
[0073] As a possible implementation manner, the control module 640 is further configured to refuse to perform braking control on the respective braking clutches in response to satisfying at least one set condition; wherein, the at least one set condition includes: the generator set is in the operating state; there is at least one target braking clutch among the respective braking clutches; wherein, the target braking clutch is in the corresponding set braking position; the contact of the blocking braking clutch relay is disconnected.
[0074] The braking clutch control device of the generator set according to the embodiments of the present disclosure, by setting a multi-level safety determination logic, after receiving a braking clutch braking instruction, first determines whether the generator set is in the operating state, so as to avoid mis-engaging the braking clutch during the operation of the unit, and prevent equipment damage caused by braking under high rotational speed or loaded state; after confirming that the unit is not in the operating state, further determines whether the respective braking clutches have reached the set braking positions, so as to avoid unnecessary wear caused by repeated actions; when the braking clutches are not in place, further detects the contact state of the blocking braking clutch relay, to ensure that the braking operation is only allowed when the safety conditions (such as the rotational speed is lower than the set threshold) are met; through this control logic, it effectively prevents the mis-engagement of the braking clutches under high rotational speed or unexpected states, improves the safety and reliability of the braking process, reduces mechanical wear and dust pollution, extends the service life of the equipment, and ensures the stable operation of the generator set and the safety of on-site operations.
[0075] It should be noted that the foregoing explanation of the embodiments of the braking clutch control method for the generator set also applies to the braking clutch control device of the generator set in this embodiment, and will not be elaborated herein.
[0076] It should be noted that for the implementation process and technical principle of the braking clutch control system in this embodiment, refer to the foregoing explanation of the braking clutch control method for the generator set according to the embodiments of the present disclosure, and will not be elaborated herein.
[0077] To implement the above embodiments, the present disclosure also provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the wind brake control method of the generator set described in the above embodiments is implemented.
[0078] To implement the above embodiments, the present disclosure also provides a computer program product. When the instructions in the computer program product are executed by a processor, the wind brake control method of the generator set described in the above embodiments is executed.
[0079] In the description of this specification, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of these features. In the description of this application, "a plurality" means at least two, such as two, three, etc., unless otherwise specifically and clearly defined.
[0080] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of this application. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without conflict, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.
[0081] Although the embodiments of this application have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting this application. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of this application.
Claims
1. A method for controlling the air brake of a generator set, characterized in that, Applied to a wind brake control system, including: In response to receiving a wind brake command associated with the generator set, determining whether the generator set is in an operating state; In the case where the generator set is not in an operating state, determining whether each wind brake associated with the generator set is in a corresponding set braking position; In the case where each wind brake is not in the corresponding set braking position, detecting whether the contact of the locking brake wind brake relay associated with the generator set is disconnected; wherein, the locking brake wind brake relay is arranged in the braking wind brake input control loop of the wind brake control system; In response to the contact of the locking brake wind brake relay not being disconnected, performing braking control on each wind brake.
2. The method according to claim 1, wherein The locking brake wind brake relay is controlled by the following steps: When the rotational speed of the generator set is greater than a set threshold, controlling the contact of the locking relay to be disconnected; When the rotational speed of the generator set is less than or equal to the set threshold, controlling the contact of the locking relay to be closed.
3. The method according to claim 1, characterized in that, The step of, in the case where the generator set is not in an operating state, determining whether each wind brake associated with the generator set is in a corresponding set braking position includes: In the case where the generator set is not in an operating state, detecting the position feedback signal of each wind brake; According to each position feedback signal, determining whether each wind brake is in a corresponding set braking position.
4. The method according to claim 1, characterized in that, The operating state includes any one of the following: Idle running state; wherein, the idle running state is used to indicate a state where the generator set is operating but not generating electricity; No-load state; wherein, the no-load state is used to indicate a state where the generator set is ready to generate electricity but has not output electricity; Grid-connected state; wherein, the grid-connected state is used to indicate a state where the generator set is connected to the grid and outputting electricity.
5. The method according to claim 1, wherein The method further includes: In response to satisfying at least one set condition, rejecting to perform braking control on each wind brake; Wherein, the at least one set condition includes: The generator set is in an operating state; There is at least one target wind brake among each wind brake; wherein, the target wind brake is in a corresponding set braking position; The contact of the locking brake wind brake relay is disconnected.
6. A wind brake control system, characterized in that, The wind brake control system includes a locking brake wind brake relay, and the locking brake wind brake relay is located in the braking wind brake input control loop of the wind brake control system; The wind brake control system further includes: a controller; Wherein, the controller is used to execute the wind brake control method of the generator set according to any one of claims 1-5.
7. An air brake control device for a generator set, characterized in that, Applied to a wind brake control system, including: A first judgment module, configured to, in response to receiving a wind brake command associated with the generator set, determine whether the generator set is in an operating state; A second judgment module, configured to, in the case where the generator set is not in an operating state, determine whether each wind brake associated with the generator set is in a corresponding set braking position; The detection module is used to detect whether the contacts of the locking brake air brake relay associated with the generator set are disconnected when each of the air brakes is not in the corresponding set braking position; wherein, the locking brake air brake relay is arranged in the braking air brake input control loop of the air brake control system; The control module is used to perform braking control on each of the air brakes in response to the contacts of the locking brake air brake relay not being disconnected.
8. The device according to claim 7, characterized in that The locking brake air brake relay is controlled by the following module: The processing module is used to control the contacts of the locking relay to disconnect when the rotational speed of the generator set is greater than the set threshold; The processing module is further used to control the contacts of the locking relay to close when the rotational speed of the generator set is less than or equal to the set threshold.
9. The device according to claim 7, characterized in that, The second judgment module is used for: Detecting the position feedback signals of each of the air brakes when the generator set is not in the operating state; Determining whether each of the air brakes is in the corresponding set braking position according to each of the position feedback signals.
10. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by a processor, it implements the air brake control method for the generator set according to any one of claims 1-5.