Braking control methods, devices, equipment and media for hydro-generator units

Abstract

This disclosure proposes a braking control method, device, equipment, and medium for a hydro-generator unit. The method includes: in response to receiving a signal to engage the air damper, determining whether the hydro-generator unit needs to engage the air damper; if it is determined that the hydro-generator unit needs to engage the air damper, first inflating the lower chamber of the air damper to engage the air damper; and in response to receiving a first speed signal, after a first waiting period, first venting the lower chamber of the air damper to deactivate the air damper. Therefore, by determining whether the hydro-generator unit needs to engage the air damper upon receiving the signal to engage the air damper, the air damper is engaged only when necessary, rather than directly engaging the air damper upon receiving the signal. This effectively avoids accidental engagement of the air damper and improves the engagement / deactivation interlocking logic of the air damper.

Description

Technical Field

[0001] This disclosure relates to the technical field of hydropower industry, and in particular to a braking control method, device, equipment and medium for a hydro-generator set. Background Technology

[0002] An air damper (also known as a brake damper) is a device that ensures the proper shutdown of a hydro-generator. It is mainly installed at the bottom of the generator rotor and consists of two main chambers: an upper chamber and a lower chamber. In particular, most mixed-flow hydro-generator units use low-pressure pneumatic air dampers to accelerate the shutdown of the generator unit and prevent prolonged low-speed rotation.

[0003] In related technologies, once a mixed-flow turbine generator unit receives a signal from the LCU (Local Control Unit) to activate the windshield, it will directly activate the windshield. However, the interlocking logic for activating and deactivating the windshield is imperfect, and erroneous activation is prone to occur. Therefore, it is essential to implement braking control for mixed-flow turbine generator units to improve their production safety. Summary of the Invention

[0004] This disclosure aims to at least partially address one of the technical problems in the related art.

[0005] This disclosure proposes a braking control method, device, equipment, and medium for a hydro-generator unit. Upon receiving a signal to engage the brake damper, the method determines whether the hydro-generator unit needs to engage the brake damper. This ensures that the brake damper is engaged only when it is required, rather than directly engaging it upon receiving the signal. This effectively avoids accidental engagement of the brake damper and improves the engagement / disengagement interlocking logic of the brake damper.

[0006] The first aspect of this disclosure provides a braking control method for a hydro-generator set, the method comprising:

[0007] In response to receiving a signal to engage the air damper, determine whether the turbine generator unit needs to engage the brake air damper;

[0008] If it is determined that the hydro-generator unit needs to engage the brake airlock, the lower chamber of the brake airlock is first inflated to engage the brake airlock.

[0009] In response to receiving the first speed signal, after a first waiting period, the lower chamber of the brake damper is vented for the first time to remove the brake damper.

[0010] A second aspect of this disclosure provides a braking control device for a hydro-generator set, the device comprising:

[0011] The first determining module is used to determine whether the hydro-generator unit needs to engage the brake airlock in response to receiving the signal to engage the airlock.

[0012] An air-inflating module is used to first inflate the lower chamber of the brake damper when it is determined that the hydro-generator unit needs to engage the brake damper, so as to engage the brake damper.

[0013] The first exhaust module is used to perform a first exhaust on the lower chamber of the brake damper in response to receiving a first speed signal and after a first waiting period, so as to remove the brake damper.

[0014] A third aspect of this disclosure provides an electronic device, including: a processor and a memory communicatively connected to the processor; the memory stores computer-executable instructions; the processor executes the computer-executable instructions stored in the memory to implement the hydro-generator braking control method disclosed in the first aspect of this disclosure.

[0015] A fourth aspect of this disclosure provides a computer-readable medium storing computer-executable instructions, which, when executed by a processor, are used to implement the hydro-generator braking control method disclosed in the first aspect of this disclosure.

[0016] The fifth aspect of this disclosure provides a computer program product, including a computer program that, when executed by a processor, implements the hydro-generator braking control method disclosed in the first aspect of this disclosure.

[0017] Additional aspects and advantages of this disclosure will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this disclosure. Attached Figure Description

[0018] The above and / or additional aspects and advantages of this disclosure will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, in which:

[0019] Figure 1 This is a schematic flowchart of the braking control method for a hydro-generator set provided in Embodiment 1 of this disclosure;

[0020] Figure 2 This is a schematic flowchart of the braking control method for a hydro-generator set provided in Embodiment 2 of this disclosure;

[0021] Figure 3 A flowchart illustrating the braking control method for a mixed-flow turbine generator set provided in this disclosure;

[0022] Figure 4This is a schematic diagram of the structure of the water turbine generator set braking control device provided in Embodiment 4 of this disclosure;

[0023] Figure 5 A schematic block diagram of an example electronic device that can be used to implement embodiments of the present disclosure is shown. Detailed Implementation

[0024] Embodiments of this disclosure are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this disclosure, and should not be construed as limiting this disclosure.

[0025] In related technologies, once the mixed-flow turbine generator unit receives the air damper activation signal from the LCU (Local Control Unit), it will directly activate the air damper. However, the interlocking logic for activating and deactivating the air damper is imperfect, making it prone to accidental activation. Furthermore, during the deactivation of the brake air damper, the lower chamber is vented and the upper chamber is vented simultaneously. If the follow-up seal of the mixed-flow turbine generator unit is damaged, air leakage between the upper and lower chambers of the air damper may occur, causing the air damper to fail to deactivate.

[0026] To address at least one of the aforementioned problems, this disclosure proposes a braking control method, device, equipment, and medium for a hydro-generator set.

[0027] The following description, with reference to the accompanying drawings, describes a method, apparatus, equipment, and medium for braking control of a hydro-generator set according to embodiments of the present disclosure.

[0028] Figure 1 This is a schematic flowchart of the braking control method for a hydro-generator set provided in Embodiment 1 of this disclosure.

[0029] This disclosure illustrates the example of a hydro-generator braking control method configured in a hydro-generator braking control device. This hydro-generator braking control device can be applied to any electronic device so that the electronic device can perform the hydro-generator braking control function.

[0030] Among them, electronic devices can be any device with computing capabilities, such as personal computers (PCs), mobile terminals, servers, etc. Mobile terminals can be hardware devices with various operating systems, touch screens and / or displays, such as mobile phones, tablets, personal digital assistants, wearable devices, etc.

[0031] like Figure 1 As shown, the braking control method for the hydro-generator set may include the following steps:

[0032] Step 101: In response to receiving the signal to engage the airlock, determine whether the turbine generator unit needs to engage the brake airlock.

[0033] In this embodiment of the disclosure, the hydro-turbine generator set can be a mixed-flow hydro-generator set.

[0034] In this embodiment of the disclosure, information on engaging the windshield can be received. For example, during the shutdown of the hydro-generator unit, when the LCU monitors that the speed of the hydro-generator unit drops to 10%Ne, the LCU can send a signal to engage the windshield to the execution entity of this disclosure, thereby the execution entity of this disclosure can receive the signal to engage the windshield.

[0035] In this embodiment of the disclosure, when a signal to engage the air damper is received, it can be determined first whether the turbine generator unit needs to engage the brake air damper.

[0036] As one possible implementation, in response to receiving a signal to engage the air damper, a first timer is started; if the value of the first timer is not greater than a set duration and a second speed signal is received, it is determined whether the movable guide vanes and / or cylinder valves of the turbine generator set are completely closed; in response to the movable guide vanes and / or cylinder valves of the turbine generator set being completely closed, it is determined that the turbine generator set needs to engage the air damper; in response to the movable guide vanes and cylinder valves of the turbine generator set not being completely closed, it is determined that the turbine generator set does not need to engage the air damper.

[0037] In the embodiments disclosed herein, the set duration can be preset, such as 420s, 500s, etc., and this disclosure does not limit it.

[0038] In this embodiment of the disclosure, the second speed signal can be used to indicate the speed of the hydro-generator set as the second speed, wherein the second speed can be, for example, 10%Ne, 9%Ne, etc., and this disclosure does not limit it.

[0039] In this embodiment of the disclosure, a second rotational speed signal can be received. For example, the rotational speed of the hydro-generator unit can be measured by a rotational speed measuring device. When the rotational speed of the hydro-generator unit measured by the rotational speed measuring device is a second rotational speed, a second rotational speed signal can be sent, so that the execution subject of this disclosure can receive the second rotational speed signal. For example, when the rotational speed measuring device measures the rotational speed of the hydro-generator unit to be 10%Ne, it can send a second rotational speed signal, i.e., a 10%Ne signal, to the execution subject of this disclosure, so that the execution subject of this disclosure can receive the 10%Ne signal.

[0040] In this embodiment of the disclosure, if the value of the first timer is not greater than the set duration and the second speed signal is received, it can be determined whether the active guide vanes and / or cylinder valves of the hydro-generator set are completely closed.

[0041] As an example, if the value of the first timer is not greater than the set duration and the second speed signal is received, it can be determined whether the active guide vanes of the hydro-generator unit are completely closed.

[0042] As another example, if the value of the first timer is not greater than the set duration and the second speed signal is received, it can be determined whether the cylinder valve of the hydro-generator unit is completely closed.

[0043] As another example, if the value of the first timer is not greater than the set duration and the second speed signal is received, it can be determined whether the moving guide vanes and cylinder valves of the hydro-generator unit are completely closed.

[0044] In this embodiment of the disclosure, when the movable guide vanes and / or cylinder valves of the hydro-generator unit are completely closed, it can be determined that the hydro-generator unit needs to engage the brake damper; while when the movable guide vanes and cylinder valves of the hydro-generator unit are not completely closed, it can be determined that the hydro-generator unit does not need to engage the brake damper.

[0045] Therefore, if the value of the first timer is not greater than the set duration and the second speed signal is received, it is possible to effectively determine whether the turbine generator unit needs to engage the brake damper based on the closing status of the active guide vanes and / or the cylinder valve. This can avoid the problem of erroneous engagement caused by directly engaging the brake damper when the brake damper is engaged.

[0046] As another possible implementation, when the value of the first timer is greater than the set duration, it can be determined that the turbine generator unit does not need to engage the brake damper; or, when the value of the first timer is not greater than the set duration and no second speed signal is received, it can be determined that the turbine generator unit does not need to engage the brake damper.

[0047] Therefore, it is possible to effectively determine whether the turbine generator unit needs to engage the brake airlock.

[0048] Step 102: If it is determined that the turbine generator unit needs to engage the brake airlock, the lower chamber of the brake airlock is first inflated to engage the brake airlock.

[0049] In this embodiment of the disclosure, when it is determined that the turbine generator set needs to engage the brake airlock, the lower chamber of the brake airlock can be first inflated to engage the brake airlock.

[0050] Step 103: In response to receiving the first speed signal, after a first waiting period, the lower chamber of the brake damper is vented for the first time to remove the brake damper.

[0051] In this embodiment of the disclosure, the first speed signal can be used to indicate the speed of the hydro-generator set as the first speed, wherein the first speed can be, for example, 0%Ne, 1%Ne, etc., and this disclosure does not limit it.

[0052] In the embodiments disclosed herein, the first waiting time can be preset, such as 60s, 70s, etc., and this disclosure does not limit it.

[0053] In this embodiment of the disclosure, a first rotational speed signal can be received. For example, the rotational speed of the hydro-generator unit can be measured by a rotational speed measuring device. When the rotational speed of the hydro-generator unit measured by the rotational speed measuring device is a first rotational speed, a first rotational speed signal can be sent, so that the execution subject of this disclosure can receive the first rotational speed signal. For example, when the rotational speed measuring device measures the rotational speed of the hydro-generator unit to be 0%Ne, it can send the first rotational speed signal, i.e., the 0%Ne signal, to the execution subject of this disclosure, so that the execution subject of this disclosure can receive the 0%Ne signal.

[0054] In this embodiment of the present disclosure, when the first speed signal is received, the lower chamber of the brake damper can be vented for the first time after a first waiting period in order to remove the brake damper.

[0055] The braking control method for a hydro-generator unit according to this disclosure determines whether the hydro-generator unit needs to engage the brake damper in response to receiving a signal to engage the brake damper. If it is determined that the hydro-generator unit needs to engage the brake damper, the lower chamber of the brake damper is first inflated to engage the brake damper. In response to receiving a first speed signal, after a first waiting period, the lower chamber of the brake damper is first vented to deactivate the brake damper. Therefore, by determining whether the hydro-generator unit needs to engage the brake damper upon receiving a signal to engage the brake damper, the brake damper is engaged only when necessary, rather than directly engaging the brake damper upon receiving a signal. This effectively avoids accidental engagement of the brake damper and improves the engagement / deactivation interlocking logic of the brake damper.

[0056] To clearly illustrate how the lower chamber of the brake damper is first vented in the above embodiments of this disclosure to remove the brake damper, this disclosure also proposes a braking control method for a hydro-generator set.

[0057] Figure 2 This is a schematic flowchart of the braking control method for a hydro-generator set provided in Embodiment 2 of this disclosure.

[0058] like Figure 2 As shown, the braking control method for the hydro-generator set may include the following steps:

[0059] Step 201: In response to receiving the signal to engage the airlock, determine whether the turbine generator unit needs to engage the brake airlock.

[0060] Step 202: If it is determined that the turbine generator unit needs to engage the brake airlock, the lower chamber of the brake airlock is first inflated to engage the brake airlock.

[0061] The execution process of steps 201 to 202 can be referred to the execution process of any embodiment of this disclosure, and will not be repeated here.

[0062] Step 203: In response to receiving the first speed signal, after a first waiting period, the lower chamber of the brake damper is vented for the first time.

[0063] It should be noted that the explanations of the first speed signal and the first waiting time in any of the above embodiments are also applicable to this embodiment, and will not be repeated here.

[0064] In this embodiment of the present disclosure, when the first speed signal is received, the lower chamber of the brake damper can be vented for the first time after a first waiting period.

[0065] Step 204: After the first exhaust is performed for a second waiting period, the upper cavity of the brake air brake is inflated for a second time to remove the brake air brake; wherein the execution time of the second inflation is the third waiting period.

[0066] In the embodiments of this disclosure, the second waiting time can be preset, such as 60s, 80s, etc., and this disclosure does not limit it.

[0067] In the embodiments of this disclosure, the third waiting time can be preset, such as 60s, 66s, etc., and this disclosure does not limit it.

[0068] It should be noted that the second waiting time, the third waiting time and the first waiting time may be the same or different, and this disclosure does not impose any restrictions on this.

[0069] In this embodiment of the present disclosure, after the first exhaust is performed for a second waiting period, the upper cavity of the brake damper can be inflated a second time to remove the brake damper.

[0070] Understandably, during the first venting of the lower chamber of the brake damper and the execution of the second waiting time for the first venting, the valve core of the brake damper can fall using its own weight. At this time, the upper chamber of the brake damper is then inflated for the second time and the execution of the third waiting time for the second inflation is carried out. Through the gas pressure, it can be ensured that the valve core of the brake damper is pressed to the exit position, that is, the brake damper is disengaged.

[0071] In one possible implementation of this disclosure, after the second inflation process has been completed for a third waiting period, a second venting can be performed on the upper chamber of the brake damper. This effectively controls the air pressure in the upper and lower chambers of the brake damper, ensuring that the air pressure in both chambers is consistent, and allowing the brake damper to operate normally during subsequent deployment and deactivation processes.

[0072] The braking control method for a hydro-generator set according to this embodiment involves first venting the lower chamber of the brake damper; and then, after a second waiting period following the first venting, second inflation of the upper chamber of the brake damper to disengage the brake damper. The second inflation period is equivalent to a third waiting period. Therefore, by first venting the lower chamber of the brake damper and then inflating the upper chamber, the brake damper can be effectively disengaged, rather than simultaneously venting the lower chamber and inflating the upper chamber during disengagement. This avoids the problem of air leakage between the upper and lower chambers due to damage to the follow-up seal of the hydro-generator set, which could prevent disengagement of the brake damper.

[0073] To clearly illustrate the braking control method of the hydro-generator set in the above embodiments, a detailed explanation is provided below with reference to examples.

[0074] Figure 3 This is a flowchart illustrating the braking control method for a mixed-flow turbine generator set provided in this disclosure. Figure 3 As shown, the braking control method for this mixed-flow hydro-generator unit may include the following steps:

[0075] 1. During the shutdown process of the mixed-flow turbine generator unit, when the unit speed drops to 10%Ne, the LCU can send a signal to the actuator of this disclosure to engage the air damper. The actuator of this disclosure can receive the signal to engage the air damper and start the first timer. During the operation of the first timer, when the actuator of this disclosure receives the 10%Ne speed signal sent by the speed measuring device, when the movable guide vanes of the mixed-flow turbine generator unit are completely closed and / or the cylinder valve is completely closed, the lower chamber of the brake air damper can be first inflated to engage the air damper.

[0076] 2. When the unit speed reaches 0%Ne speed, the speed measuring device can send a 0%Ne speed signal to the execution subject of this disclosure; in response to the execution subject of this disclosure receiving the 0%Ne speed signal, after a delay of 60s (referred to as the first waiting time in this disclosure), the first exhaust is started to be performed on the lower chamber of the brake air damper;

[0077] 3. After the first exhaust is performed for 60 seconds (referred to as the second waiting time in this disclosure), the upper cavity of the brake air damper is inflated a second time;

[0078] 4. After the second inflation is performed for 60 seconds (referred to as the third waiting time in this disclosure), the upper cavity of the brake airlock is vented for the second time.

[0079] Compared with related technologies, the advantages of the above-mentioned braking control method for mixed-flow hydro-generator units are explained in detail below:

[0080] 1) Added judgment conditions: whether the 10%Ne speed signal sent by the speed measuring device is received, and whether the movable guide vane and / or cylinder valve are completely closed.

[0081] The interlocking logic of the brake damper before it is engaged has been improved. On the one hand, the two new judgment conditions can avoid the problem of the brake damper being accidentally engaged when the unit is started or when the unit speed is too high, and avoid the problem of the unit being shut down unplanned due to the burning of the damper. On the other hand, the new judgment condition of whether the movable guide vane and / or cylinder valve are completely closed can prevent the brake damper from failing to engage, which could cause the unit to inertially shut down, the generator to be damaged, and other accidents.

[0082] 2) The logic of simultaneous lower chamber exhaust and upper chamber inflation is optimized. In this disclosure, lower chamber exhaust is performed first, and upper chamber inflation can only be performed after 60 seconds of lower chamber exhaust.

[0083] It should be noted that during the 60-second delay of venting the lower chamber of the brake damper, the valve core can fall under its own weight. 60 seconds is generally sufficient to ensure the brake damper reaches near its retraction position. At this point, inflating the upper chamber ensures the valve core is pressed into the retraction position. The advantage of this logic is that it eliminates the problem of air leakage between the upper and lower chambers of the brake damper due to damage to the follow-up seal, preventing the brake damper from retracting. It effectively avoids prolonged pressure loss in the low-pressure brake air system of mixed-flow turbine generator units caused by air leakage between the upper and lower chambers of the brake damper, and it effectively prevents the loss of backup power after unit shutdown due to the brake damper's inability to fully retract because of air leakage between the upper and lower chambers.

[0084] In summary, the braking control method for hydro-generator units disclosed herein optimizes the locking conditions for the brake damper, which can reduce the possibility of accidental activation of the brake damper; it also optimizes the activation and deactivation logic of the brake damper, which can prevent the damper from failing to deactivate due to air leakage between the upper and lower chambers caused by damage to the follower seal ring.

[0085] With the above Figures 1 to 2 Corresponding to the braking control method for hydro-generator sets provided in the embodiments, this disclosure also provides a braking control device for hydro-generator sets. Because the braking control device for hydro-generator sets provided in the embodiments of this disclosure is similar to the one described above... Figures 1 to 2The embodiment provides a corresponding method for braking control of a hydro-generator set. Therefore, the implementation method for braking control of a hydro-generator set is also applicable to the braking control device for a hydro-generator set provided in this embodiment. It will not be described in detail in this embodiment.

[0086] Figure 4 This is a schematic diagram of the structure of the water turbine generator braking control device provided in Embodiment 3 of this disclosure.

[0087] like Figure 4 As shown, the hydro-generator braking control device 400 may include: a first determining module 401, an air charging module 402, and a first venting module 403.

[0088] The first determining module 401 is used to determine whether the turbine generator unit needs to engage the brake airlock in response to receiving the signal to engage the airlock.

[0089] The inflation module 402 is used to first inflate the lower chamber of the brake airlock when it is determined that the hydro-generator unit needs to engage the brake airlock, so as to engage the brake airlock.

[0090] The first exhaust module 403 is used to perform a first exhaust on the lower chamber of the brake damper in response to receiving a first speed signal and after a first waiting period, so as to remove the brake damper.

[0091] In one possible implementation of this disclosure, the first determining module 401 is configured to: start a first timer in response to receiving a signal to engage the airlock; determine whether the active guide vanes and / or cylinder valves of the hydro-generator unit are completely closed when the value of the first timer is not greater than a set duration and a second speed signal is received; and determine that the hydro-generator unit needs to engage the brake airlock in response to the active guide vanes and / or cylinder valves of the hydro-generator unit being completely closed.

[0092] In one possible implementation of this disclosure, the hydro-generator braking control device 400 may further include:

[0093] The second determining module is used to determine that the turbine generator set does not need to engage the brake damper in response to the active guide vanes of the turbine generator set and the cylinder valves not being fully closed.

[0094] In one possible implementation of this disclosure, the hydro-generator braking control device 400 may further include:

[0095] The third determining module is used to determine that the turbine generator set does not need to engage the brake damper when the value of the first timer is greater than the set duration; or, when the value of the first timer is not greater than the set duration and no second speed signal is received, to determine that the turbine generator set does not need to engage the brake damper.

[0096] In one possible implementation of this disclosure, the first exhaust module 403 is used to: perform a first exhaust on the lower cavity of the brake damper; and after the first exhaust has been performed for a second waiting period, perform a second inflation on the upper cavity of the brake damper to remove the brake damper; wherein the execution period of the second inflation is the third waiting period.

[0097] In one possible implementation of this disclosure, the hydro-generator braking control device 400 may further include:

[0098] The second exhaust module is used to perform a second exhaust on the upper cavity of the brake air brake after the third waiting period of the second inflation execution.

[0099] The braking control device for a hydro-generator unit according to this embodiment determines whether the hydro-generator unit needs to engage the brake damper in response to receiving a signal to engage the brake damper. If it is determined that the hydro-generator unit needs to engage the brake damper, the lower chamber of the brake damper is first inflated to engage the brake damper. In response to receiving a first speed signal, after a first waiting period, the lower chamber of the brake damper is first vented to deactivate the brake damper. Therefore, by determining whether the hydro-generator unit needs to engage the brake damper upon receiving a signal to engage the brake damper, the brake damper is engaged only when necessary, rather than being engaged directly upon receiving a signal. This effectively avoids accidental engagement of the brake damper and improves the engagement / deactivation interlocking logic of the brake damper.

[0100] To implement the above embodiments, the present invention also proposes an electronic device, including: a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the program, it implements the hydro-generator braking control method proposed in the foregoing embodiments of the present invention.

[0101] To implement the above embodiments, the present invention also proposes a non-transitory computer-readable storage medium storing a computer program thereon, characterized in that the program, when executed by a processor, implements the hydro-generator braking control method proposed in the foregoing embodiments of the present invention.

[0102] To implement the above embodiments, the present invention also proposes a computer program product, which, when the instructions in the computer program product are executed by a processor, performs the hydro-generator braking control method proposed in the foregoing embodiments of the present invention.

[0103] According to embodiments of the present invention, the present invention also provides an electronic device, a non-transitory computer-readable storage medium, and a computer program product.

[0104] like Figure 5As shown, the electronic device 12 is represented in the form of a general-purpose computing device. The components of the electronic device 12 may include, but are not limited to: one or more processors or processing units 16, system memory 28, and bus 18 connecting different system components (including system memory 28 and processing unit 16).

[0105] Bus 18 represents one or more of several bus architectures, including a memory bus or memory controller, a peripheral bus, a graphics acceleration port, a processor, or a local bus using any of the various bus architectures. Examples of these architectures include, but are not limited to, the Industry Standard Architecture (ISA) bus, the Micro Channel Architecture (MAC) bus, the Enhanced ISA bus, the Video Electronics Standards Association (VESA) local bus, and the Peripheral Component Interconnect (PCI) bus.

[0106] Electronic device 12 typically includes a variety of computer system readable media. These media can be any available media that can be accessed by electronic device 12, including volatile and non-volatile media, removable and non-removable media.

[0107] Memory 28 may include computer system readable media in the form of volatile memory, such as Random Access Memory (RAM) 30 and / or cache memory 32. Electronic device 12 may further include other removable / non-removable, volatile / non-volatile computer system storage media. By way of example only, storage system 34 may be used to read and write non-removable, non-volatile magnetic media (… Figure 5 Not shown; usually referred to as a "hard drive"). Although Figure 5Not shown, a disk drive for reading and writing to a removable non-volatile disk (e.g., a "floppy disk") and an optical disc drive for reading and writing to a removable non-volatile optical disc (e.g., a compact disc read-only memory (CD-ROM), a digital video disc read-only memory (DVD-ROM), or other optical media) may be provided. In these cases, each drive may be connected to bus 18 via one or more data media interfaces. Memory 28 may include at least one program product having a set (e.g., at least one) of program modules configured to perform the functions of the embodiments of the present invention.

[0108] A program / utility 40 having a set (at least one) of program modules 42 may be stored, for example, in memory 28. Such program modules 42 include, but are not limited to, an operating system, one or more application programs, other program modules, and program data. Each or some combination of these examples may include an implementation of a network environment. Program modules 42 typically perform the functions and / or methods described in the embodiments of the present invention.

[0109] Electronic device 12 can also communicate with one or more external devices 14 (e.g., keyboard, pointing device, display 24, etc.), and with one or more devices that enable a user to interact with electronic device 12, and / or with any device that enables electronic device 12 to communicate with one or more other computing devices (e.g., network card, modem, etc.). This communication can be performed via input / output (I / O) interface 22. Furthermore, electronic device 12 can also communicate with one or more networks (e.g., local area network (LAN), wide area network (WAN), and / or public networks, such as the Internet) via network adapter 20. As shown, network adapter 20 communicates with other modules of electronic device 12 via bus 18. It should be understood that, although not shown in the figure, other hardware and / or software modules can be used in conjunction with electronic device 12, including but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives, and data backup storage systems.

[0110] The processing unit 16 executes various functional applications and data processing by running programs stored in the system memory 28, such as implementing the methods mentioned in the foregoing embodiments.

[0111] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0112] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0113] Any process or method description in the flowchart or otherwise herein can be understood as representing a module, segment, or portion of code comprising one or more executable instructions for implementing custom logic functions or processes, and the scope of preferred embodiments of the invention includes additional implementations in which functions may be performed not in the order shown or discussed, including substantially simultaneously or in reverse order depending on the functions involved, as should be understood by those skilled in the art to which embodiments of the invention pertain.

[0114] The logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as a sequenced list of executable instructions for implementing logical functions, and can be embodied in any computer-readable medium for use by, or in conjunction with, an instruction execution system, apparatus, or device (such as a computer-based system, a processor-included system, or other system that can fetch and execute instructions from, an instruction execution system, apparatus, or device). For the purposes of this specification, "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transmit programs for use by, or in conjunction with, an instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of computer-readable media include: an electrical connection having one or more wires (electronic device), a portable computer disk drive (magnetic device), random access memory (RAM), read-only memory (ROM), erasable and editable read-only memory (EPROM or flash memory), fiber optic devices, and portable optical disc read-only memory (CDROM). Alternatively, the computer-readable medium may be paper or other suitable media on which the program can be printed, since the program can be obtained electronically, for example, by optically scanning the paper or other medium, followed by editing, interpreting, or otherwise processing as necessary, and then stored in a computer memory.

[0115] It should be understood that various parts of the present invention can be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, multiple steps or methods can be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware as in another embodiment, it can be implemented using any of the following techniques known in the art, or a combination thereof: discrete logic circuits having logic gates for implementing logical functions on data signals, application-specific integrated circuits (ASICs) having suitable combinational logic gates, programmable gate arrays (PGAs), field-programmable gate arrays (FPGAs), etc.

[0116] Those skilled in the art will understand that all or part of the steps of the methods in the above embodiments can be implemented by a program instructing related hardware. The program can be stored in a computer-readable storage medium, and when executed, the program includes one or a combination of the steps of the method embodiments.

[0117] Furthermore, the functional units in the various embodiments of the present invention can be integrated into a processing module, or each unit can exist physically separately, or two or more units can be integrated into a module. The integrated module can be implemented in hardware or as a software functional module. If the integrated module is implemented as a software functional module and sold or used as an independent product, it can also be stored in a computer-readable storage medium.

[0118] The storage medium mentioned above can be a read-only memory, a disk, or an optical disk, etc. Although embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.

Claims

1. A braking control method for a hydro-generator set, characterized in that, The method includes: In response to receiving a signal to engage the air damper, a first timer is started; if the value of the first timer is not greater than a set duration and a second speed signal is received, it is determined whether the movable guide vanes and / or cylinder valves of the hydro-generator unit are completely closed; in response to the movable guide vanes and / or cylinder valves of the hydro-generator unit being completely closed, it is determined that the hydro-generator unit needs to engage the brake air damper. If it is determined that the hydro-generator unit needs to engage the brake airlock, the lower chamber of the brake airlock is first inflated to engage the brake airlock. In response to receiving the first speed signal, after a first waiting period, the lower chamber of the brake damper is vented for the first time to remove the brake damper.

2. The method according to claim 1, characterized in that, The method further includes: In response to the fact that the guide vanes of the hydro-generator unit and the cylinder valves are not fully closed, it is determined that the hydro-generator unit does not need to engage the brake damper.

3. The method according to claim 1, characterized in that, The method further includes: If the value of the first timer is greater than the set duration, it is determined that the hydro-generator unit does not need to engage the brake damper. or, If the value of the first timer is not greater than the set duration and no second speed signal is received, it is determined that the hydro-generator unit does not need to engage the brake damper.

4. The method according to claim 1, characterized in that, The first venting of the lower chamber of the brake damper to remove the brake damper includes: The lower chamber of the brake damper is vented for the first time; After the first exhaust is performed for a second waiting period, the upper cavity of the brake damper is inflated for a second time to remove the brake damper; wherein the execution time of the second inflation is the third waiting period.

5. The method according to claim 4, characterized in that, The method further includes: After the second inflation is performed and the third waiting period is completed, the upper cavity of the brake airlock is vented for the second time.

6. A braking control device for a hydro-generator set, characterized in that, The device includes: The first determining module is used to start a first timer in response to receiving a signal to engage the air damper; if the value of the first timer is not greater than a set duration and a second speed signal is received, determine whether the movable guide vanes and / or cylinder valves of the hydro-generator unit are completely closed; and in response to the movable guide vanes and / or cylinder valves of the hydro-generator unit being completely closed, determine that the hydro-generator unit needs to engage the brake air damper. An air-inflating module is used to first inflate the lower chamber of the brake damper when it is determined that the hydro-generator unit needs to engage the brake damper, so as to engage the brake damper. The first exhaust module is used to perform a first exhaust on the lower chamber of the brake damper in response to receiving a first speed signal and after a first waiting period, so as to remove the brake damper.

7. An electronic device, characterized in that, include: A processor, and a memory communicatively connected to the processor; The memory stores computer-executed instructions; The processor executes computer execution instructions stored in the memory to implement the method as described in any one of claims 1-5.

8. A computer-readable medium, characterized in that, The computer-readable medium stores computer-executable instructions, which, when executed by a processor, are used to implement the method as described in any one of claims 1-5.

9. A computer program product, characterized in that, Includes a computer program that, when executed by a processor, implements the method of any one of claims 1-5.

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