Automatic flow method for exhaust of oil duct of water turbine speed regulating system

Abstract

The invention discloses a water turbine speed regulating system oil duct exhaust automation process method, and aims to solve the technical problems of complex water turbine speed regulating system oil duct exhaust operation, low efficiency, easy omission, potential safety hazard and the like in the prior art. According to the method, the problems are solved by realizing full-process automatic control from initialization check to monitoring system state check; specifically, the method comprises the following steps: carrying out comprehensive and detailed initialization check, and confirming a plurality of key parameters and states; the exhaust valve state and oil pressure and air pressure changes are monitored and fed back in real time, and the operation dynamic state is mastered in time; multiple times of repeated inspection confirms exhaust completion, and the judgment accuracy is improved; the pressure of the gas system is averagely detected by multi-point sampling, so that the accuracy of a detection result is ensured; the state of the monitoring system is deeply checked, and the process reliability is guaranteed; meanwhile, a detailed processing mechanism is designed for abnormal conditions; the exhaust operation efficiency and safety of the water turbine speed regulating system oil duct are improved, it is ensured that the exhaust effect is accurate and reliable, and stable operation of the water turbine speed regulating system is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of water turbine operation monitoring in a hydropower station, and in particular to an automated process method for exhausting oil passages in a water turbine speed regulating system. Background Art

[0002] In a turbine speed control system, air accumulation in the oil passages can seriously impact the system's normal operation, causing sluggish or unstable system response, and consequently, impacting the turbine's power generation efficiency and stability. Therefore, venting the oil passages is a crucial operation during turbine speed control system operation. Currently, venting the oil passages in turbine speed control systems is primarily performed manually in existing technologies.

[0003] The existing manual exhaust operation process is usually cumbersome, and the operator needs to manually open and close the various exhaust valves in the oil channel of the speed control system according to predetermined steps. During the operation, the operator needs to pay close attention to the changes in parameters such as oil pressure and air pressure, and use experience to determine whether the exhaust is complete. At the same time, it is also necessary to check the status of related equipment in the speed control system, such as the shutdown status of the generator, the shutdown status of the main transformer, and the shutdown status of the speed control system, to ensure that the exhaust operation is carried out under safe conditions. In addition, the operator also needs to monitor the communication status and fault alarm status of the monitoring system, but usually only stays at the simple status confirmation level, lacking in-depth inspection of the integrity of the monitoring system operation log, data consistency, etc.

[0004] Specifically, the existing artificial exhaust operation method has the following significant problems and shortcomings: 1. Complex operation: Traditional manual exhaust procedures require operators to manually perform multiple steps, involving the operation of multiple exhaust valves and the monitoring of multiple parameters. This complicated operation process is prone to operational errors. For example, when opening and closing the exhaust valve, the operation sequence may be incorrect or the operation may not be performed properly, affecting the exhaust effect.

[0005] 2. Low efficiency: Manual operation is slow and requires multiple people to coordinate, resulting in low exhaust efficiency. In large turbine speed control systems, the oil passages are long and the number of exhaust valves is large. Manual operation consumes a lot of time and manpower, increasing operation and maintenance costs.

[0006] 3. Omissions: Manual operations can easily lead to omissions of certain inspection steps or operational links. Due to the high workload, operators may neglect to check key parameters or equipment status, thus affecting exhaust performance and equipment safety. For example, they may neglect to check the oil channel temperature, resulting in exhaust operations in a high-temperature environment and damaging the equipment.

[0007] 4. Safety hazards: During manual operation, operators may be exposed to dangerous environments such as high pressure and high temperature, posing a safety hazard. During the exhaust operation of the oil channel of the turbine speed control system, the oil and air pressures in the oil channel are high. If the operation is not done properly, it may cause oil leakage or gas spraying, causing harm to the operator.

[0008] 5. Inaccurate testing: Traditional testing methods rely primarily on operator experience and simple instrument monitoring, which can lead to errors and affect the judgment of exhaust performance. For example, when testing oil and air pressure, instrument accuracy issues or reading errors may lead to inaccurate judgment of exhaust performance, thus affecting the normal operation of the equipment.

[0009] 6. Monitoring system reliability issues: Existing technologies do not provide in-depth monitoring of the monitoring system's status, focusing only on communication status and fault alarms. They lack checks on the integrity of operation logs and data consistency. This can lead to incomplete or inconsistent monitoring system records, making it impossible to promptly identify problems in exhaust operations, and thus impacting the reliability of the entire exhaust process.

[0010] Although there has been some research and application in the existing technology on the control and monitoring of turbine speed control systems, there are currently no public reports or mature technologies for automated solutions for the specific link of oil channel exhaust.

[0011] Therefore, developing a process method that can automatically, efficiently and safely complete the oil channel exhaust operation of the turbine speed control system has important practical significance and application value.

[0012] In summary, the present invention aims to solve the problems of complex operation, low efficiency, and easy omission of oil channel exhaust in the existing turbine speed control system. By proposing an automated exhaust process method, the automated operation of oil channel exhaust is realized, the operational efficiency and safety are improved, thereby providing a strong guarantee for the stable operation of the turbine speed control system. Summary of the Invention

[0013] The technical problem to be solved by the present invention is to provide an automated process method for exhausting the oil passages of a turbine speed governing system, so as to solve the technical problems of complexity, low efficiency, easy omission and potential safety hazards in the exhaust operation of the oil passages of the turbine speed governing system, overcome the limitations of manual exhaust operation in the prior art, realize the automated operation of exhausting the oil passages, improve operational efficiency and safety, and thus provide strong guarantee for the stable operation of the turbine speed governing system.

[0014] In order to achieve the above technical objectives, the present invention adopts the following technical solutions: Specifically, the present invention proposes an automated process method for exhausting the oil passages of a turbine speed control system. The method implements the entire process of exhausting the oil passages through automated control, specifically comprising the following steps: First, when receiving the oil channel exhaust operation command, the system automatically performs an initialization check to confirm that the generator is shut down, the main transformer is shut down, the speed control system is shut down, the oil pressure is normal, the exhaust valve control mode is remote, there is no alarm signal, the gas system pressure is normal, the monitoring system is normal, and the oil channel temperature is within the normal range. If all the conditions are met, the system will proceed to the next step; otherwise, an alarm will be issued and the operation process will be exited. Subsequently, the system numbers the exhaust valves and issues remote commands to open each exhaust valve in sequence. During the opening process, the system monitors the opening status and air pressure of the exhaust valves in real time. If all exhaust valves are successfully opened and the air pressure is normal, the system enters the delayed exhaust phase. During the delayed exhaust phase, the system sets a delay time based on the oil channel length and exhaust requirements, and monitors changes in oil and air pressure in real time to ensure that the exhaust valve remains open. If any abnormality is detected, an alarm will be issued immediately and the operation process will be exited. After the delay ends, the system remotely issues a command to close each exhaust valve in turn and automatically monitors the closing status of the exhaust valve. If all exhaust valves are successfully closed, the exhaust completion confirmation stage is entered; During the exhaust completion confirmation phase, the system automatically monitors whether the oil pressure in the oil channel has returned to normal, and confirms whether all exhaust valves are fully closed. If so, exhaust is confirmed to be complete; otherwise, an alarm is issued and the operation fails. At the same time, the system records the entire exhaust operation process in the monitoring system log, including operation time, exhaust valve status, oil pressure change curve, air pressure change curve and alarm information, and feedbacks the exhaust operation results to the operator; In addition, after the exhaust operation is completed, the system will automatically check whether the gas system pressure has returned to normal, confirm whether the gas system alarm signal has been cleared, and whether the monitoring system has recorded the complete exhaust operation process to ensure data consistency and normal communication. If all checks are passed, the entire exhaust operation process is terminated. Otherwise, an alarm will be issued and the operation failure will be prompted. The abnormal situation will be recorded for subsequent investigation and repair.

[0015] Through this series of automated processes, the present invention greatly improves the exhaust operation efficiency and safety of the oil channel of the turbine speed control system, reduces manual intervention, reduces the risk of misoperation, and ensures the accuracy and reliability of the exhaust effect.

[0016] The present invention provides an automated process method for exhausting the oil passages of a turbine speed control system, which has the following beneficial effects: 1. The present invention realizes the automation of the entire oil channel exhaust process of the turbine speed control system from initialization inspection to monitoring system status inspection, replacing the traditional manual operation and effectively solving the technical difficulties of the traditional manual exhaust operation process being cumbersome, requiring the operator to manually perform multiple steps, and prone to operating errors. It simplifies the operation process, reduces the operating difficulty, completes the exhaust operation quickly and accurately, greatly shortens the operation time, and improves work efficiency.

[0017] 2. The present invention reduces operation and maintenance costs by improving operational efficiency and reducing manual intervention; at the same time, accurate detection and reliable monitoring systems help to detect equipment failures in a timely manner, reducing equipment damage and maintenance costs.

[0018] 3. The present invention solves the problem that during manual operation, operators may be exposed to dangerous environments such as high pressure and high temperature, which may pose a safety hazard. It reduces manual intervention and reduces the safety risks of operators.

[0019] 4. The method of the present invention of multi-point sampling and averaging the detection of gas system pressure and repeatedly checking the oil pressure overcomes the technical limitations of traditional detection methods that may have errors and affect the judgment of exhaust effect, improves the detection accuracy of parameters such as oil pressure and air pressure, helps to accurately judge the exhaust effect, avoids misjudgment due to errors at a single sampling point, ensures that the judgment of exhaust completion is more reliable, and reduces the possibility of misjudgment.

[0020] 5. The present invention not only checks the conventional equipment status, but also covers multiple aspects such as oil pressure, exhaust valve control mode, alarm signal, gas system pressure, monitoring system status and oil channel temperature. The inspection content is comprehensive and detailed, which solves the problem that manual operation easily misses certain inspection steps or operation links, affecting the exhaust effect and equipment safety, and effectively avoids omission problems.

[0021] 6. During the process of opening and closing the exhaust valve and delaying exhaust, the present invention monitors the exhaust valve status, oil pressure and air pressure changes in real time, and can promptly record and feedback abnormal situations to ensure that the operator is aware of the system dynamics at the first time.

[0022] 7. The present invention not only checks the communication status and fault alarm status of the monitoring system, but also checks the integrity of the operation log, data consistency, etc., to ensure that the monitoring system can accurately record and feedback the exhaust operation process, timely discover potential problems, and solve the problem of being unable to timely discover problems in the exhaust operation due to incomplete records or inconsistent data of the monitoring system, thereby ensuring the reliability of the entire exhaust operation process.

[0023] 8. The present invention designs a detailed exception handling mechanism for abnormal situations that may occur in each operation step, including recording abnormal information, alarming, exiting the operation process, etc., and taking further measures for some abnormal situations, which can effectively deal with various emergencies and ensure the stability and security of the system.

[0024] 9. The present invention greatly improves the exhaust operation efficiency and safety of the oil channel of the turbine speed control system through automatic control, reduces manual intervention, reduces the risk of misoperation, ensures the accuracy and reliability of the exhaust effect, and provides a strong guarantee for the stable operation of the turbine speed control system. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a logical schematic diagram of the technical process of the present invention; Figure 2 A schematic diagram of the operation interface of the technical process of the present invention; Figure 3 This is a module diagram of the oil channel exhaust automatic operation permission conditions of the present invention. DETAILED DESCRIPTION

[0026] The technical solutions of the present invention are further described below with reference to the accompanying drawings and embodiments: Example 1 like Figures 1 to 3 As shown, this embodiment provides an automated process method for exhausting the oil passages of a turbine speed control system, which specifically includes the following steps: Step 1: Initialization check When the turbine and main transformer are out of service and the speed control system is in shutdown state, the operator initiates the oil channel exhaust operation command through the human-machine interface of the monitoring system.

[0027] The system automatically performs a comprehensive check on the following conditions: Generator shutdown status: Get the generator operation status signal through the communication interface with the generator control system to confirm that the generator is in the shutdown state. If it is not shut down, record the "generator is not shut down" exception; Main transformer shutdown status: Also obtain the main transformer operation status signal through the communication interface to confirm that the main transformer is shut down. If it is not shut down, record the "main transformer is not shut down" exception; Speed control system shutdown status: Check the control signal and status feedback of the speed control system to confirm that the speed control system is in the shutdown state. If it is not shut down, record the abnormality of "speed control system not shut down"; Oil pressure normality: Use the pressure sensor installed in the oil channel to obtain oil pressure data and compare it with the preset oil pressure normal range (such as [1.8, 2.2], the unit can be set according to the actual situation). If it is not within this range, record "Oil pressure abnormality" and the current oil pressure value; Remote status of exhaust valve control mode: Check the exhaust valve control mode setting and confirm that it is in remote control mode. If not, record the "Exhaust valve control mode is not remote" exception; No alarm signal: Scan the alarm signal channel of the entire speed control system to confirm that there is no alarm signal. If there is, record the specific alarm information; Normality of air system pressure: Obtain air pressure data through the pressure sensor in the air system and compare it with the preset normal air pressure range (such as [0.9, 1.1], the unit can be set according to actual conditions). If it is not within this range, record "abnormal air system pressure" and the current air pressure value; Normality of monitoring system status: Check the communication status of the monitoring system to confirm that the communication is normal and there are no fault alarms. If the communication is abnormal or there is a fault alarm, record "Monitoring system communication abnormality" or the corresponding fault alarm information; Normal range of oil channel temperature: Use the temperature sensor in the oil channel to obtain the oil channel temperature data and compare it with the preset normal range of oil channel temperature (such as [10, 50]°C). If it is not within this range, record "Oil channel temperature abnormality" and the current temperature value; If all conditions are met, the initialization check is determined to be passed and subsequent operations are carried out; if any condition is not met, it is determined that the operation conditions are not met, the specific reason is displayed on the monitoring interface, and the process is terminated.

[0028] Step 2: Remotely issue a command to open each exhaust valve in the oil channel of the speed control system in sequence Before opening the exhaust valve, the system once again confirms that the exhaust valve control mode is in remote control state and there is no interference from any alarm signal; The system sends opening commands to exhaust valve 1, exhaust valve 2, and exhaust valve 3 in a preset order through the remote command transmission channel; Monitor the opening status of each exhaust valve in real time and obtain feedback signals through the position sensor installed on the exhaust valve; If any exhaust valve fails to open, for example, the exhaust valve 2 opening signal is not fed back normally, the system will immediately alarm, display "Exhaust valve 2 failed to open" on the monitoring interface, exit the operation process, and record the failed exhaust valve number.

[0029] Step 3: Set the delay time according to the oil channel length and exhaust requirements to delay exhaust According to the oil channel length and exhaust requirements, the system sets the delay time to 40 seconds (the time can be adjusted within the range of [30, 60] seconds according to actual conditions); During the delay process, the oil pressure and air pressure data are collected every 100 milliseconds through the pressure sensor, and the changes in oil pressure and air pressure are monitored in real time and displayed as dynamic curves on the monitoring interface; If abnormal oil or air pressure is detected, such as oil pressure rising to 2.5 or air pressure falling to 0.5, the system will record and report the abnormal exhaust valve number (if it can be located), the time of the abnormality, and the specific oil and air pressure values at the time of the abnormality. The system will immediately alarm, exit the operation process, and record the abnormality.

[0030] Step 4: After the delay ends, the remote control issues a command to close each exhaust valve in turn. After the delay ends, the system sends closing commands to exhaust valve 1, exhaust valve 2, and exhaust valve 3 in the same order as the opening sequence through the remote command transmission channel; During the closing process, the closing action of each exhaust valve is fed back and confirmed in real time, and the feedback signal is obtained through the position sensor; If any exhaust valve fails to close, for example, the exhaust valve 3 closing signal is not fed back normally, the system will immediately alarm, display "Exhaust valve 3 closing failure" on the monitoring interface, exit the operation process, and record the failed exhaust valve number.

[0031] Step 5: Automatically monitor whether the oil pressure in the oil channel has returned to normal, and confirm whether all exhaust valves are closed. The system obtains oil pressure data from the pressure sensor in the oil channel and checks whether the oil pressure has returned to the normal range (such as [1.9, 2.1]). It uses a multiple sampling and averaging method to collect oil pressure data every 1 minute for 3 consecutive times and compares the average value with the normal range. At the same time, confirm whether all exhaust valves are fully closed by judging by the feedback signal of the position sensor; If the oil pressure does not return to normal, the system will automatically perform multiple repeated checks, with an interval of 5 minutes between each check. If the oil pressure is still abnormal after three consecutive checks, it is determined that the exhaust is not complete. The monitoring interface will prompt "Exhaust is not complete, please check whether there is leakage in the oil channel, etc." and take corresponding measures.

[0032] Step 6: Record the entire exhaust operation process in the monitoring system log and feedback the exhaust operation results to the operator Recordings include operation time (accurate to seconds), exhaust valve status (specific opening and closing times, accurate to milliseconds), oil pressure change curve (a curve consisting of data points collected every 100 milliseconds), air pressure change curve (a curve consisting of data points collected every 100 milliseconds), and alarm information (including abnormality type, occurrence time, related equipment number, etc.); The exhaust operation results are fed back to the operator in real time in the operation result feedback area of the monitoring interface, such as "exhaust operation successful" or "exhaust operation failed and the reason for failure".

[0033] Step 7: After the exhaust operation is completed, check the gas system pressure Adopt the multi-point sampling and averaging method, set up 4 sampling points at different positions of the gas system, collect air pressure data every 1 minute at each sampling point, collect data continuously for 3 times, take the average value as the air pressure value of the sampling point, and then take the average value of the air pressure of the 4 sampling points as the air system pressure value; Automatically check whether the gas system pressure has returned to normal and confirm whether the gas system alarm signal has been cleared; If the gas system pressure is abnormal or there is an uncleared alarm signal, an alarm will be sounded immediately and the monitoring interface will display "gas system pressure is abnormal or alarm signal is unclear", indicating that the operation has failed and recording the abnormal situation at the same time.

[0034] Step 8: Check the operating status of the monitoring system Check whether the monitoring system records the complete exhaust operation process, including whether the operation log is complete, whether the data is consistent, and whether the communication is normal; If the record is incomplete or there is data inconsistency, the system will immediately alarm and display "Monitoring system record abnormality" on the monitoring interface to indicate that the operation failed. At the same time, the abnormality will be recorded for subsequent investigation and repair; If other abnormalities occur in the monitoring system, the abnormal information of the monitoring system will be recorded and reported, and the monitoring interface will prompt "Monitoring system abnormality, there is an abnormality in the operation process and it needs to be checked"; if the monitoring system is normal, the entire exhaust operation is judged to be successful, and the monitoring interface will display "The turbine speed control system oil channel exhaust automation process operation is successful."

[0035] Example 2 In another preferred embodiment, based on the above-mentioned embodiment 1, this embodiment provides an automated process method for exhausting the oil passage of a turbine speed control system, mainly describing the implementation process of handling abnormal opening of the exhaust valve, as follows: Step 1: Initialization check The same initialization check step as in the first embodiment is followed, and after confirming that all conditions are met, the process proceeds to Step 2.

[0036] Step 2: Remotely issue a command to open each exhaust valve in the oil channel of the speed control system in sequence The system sends exhaust valve opening commands in sequence. When exhaust valve 1 fails to open, the system immediately stops subsequent operations, issues an alarm, and displays "Exhaust valve 1 failed to open" on the monitoring interface, recording the number of the failed exhaust valve. The operator can inspect the exhaust valve 1 according to the abnormal information. After the inspection is completed, the exhaust operation command is re-initiated and the system performs initialization inspection and subsequent operations again.

[0037] Step 3: Subsequent process terminates Due to the abnormal opening of the exhaust valve, subsequent steps such as delayed exhaust, exhaust valve closing, and confirmation of exhaust completion will not be executed until the exhaust valve 1 fault is eliminated.

[0038] Example 3 In another preferred embodiment, based on the above-mentioned embodiment 1, this embodiment provides an automated process method for exhausting the oil passages of a turbine speed control system, which mainly describes the implementation process of handling abnormal oil pressure or air pressure, as follows: Step 1: Initialization check After the initialization check is completed and all conditions are met, proceed to Step 2.

[0039] Step 2: Remotely issue a command to open each exhaust valve in the oil channel of the speed control system in sequence After the exhaust valve is successfully opened, go to Step 3.

[0040] Step 3: Set the delay time according to the oil channel length and exhaust requirements to delay exhaust During the delayed exhaust process, if the air pressure suddenly drops to 0.4, the system will immediately record the time of the abnormality, the specific value of the air pressure at the time of the abnormality, and the number of the abnormal exhaust valve (if it can be located); The system displays the alarm message "Air pressure abnormally drops to 0.4" on the monitoring interface and exits the operation process.

[0041] Step 4: Subsequent processing The operator checks the gas system and related equipment based on the abnormal information and investigates the cause of the reduced gas pressure, such as a malfunction in the gas source equipment or a leak in the gas pipe. Subsequent steps such as closing the exhaust valve and confirming the completion of exhaust are not performed until the fault is corrected.

[0042] Example 4 In another preferred embodiment, based on the above embodiment 1, this embodiment provides an automated process method for exhausting the oil passages of a turbine speed control system, which is specifically as follows: The automated process method for exhausting the oil passage of a turbine speed control system includes the following steps: Step 1: Initialization check When receiving the oil channel exhaust operation command, it automatically checks whether the exhaust conditions are met: (1) The generator is shut down and the main transformer is shut down; (2) The speed control system is in shutdown state; (3) The oil pressure is normal (within the set threshold range); (4) The exhaust valve control method is remote; (5) No alarm signal; (6) The gas system pressure is normal (within the set threshold range); (7) The monitoring system is in normal status (communication is normal, no fault alarm); (8) The oil channel temperature is within the normal range (to avoid erroneous operation due to abnormal temperature); If the conditions are met, the operation process will proceed to the next step; if not, an alarm will be issued and the operation process will be exited, and the reason for the alarm will be recorded.

[0043] Step 2: Open the exhaust valve The exhaust valves are numbered and remote commands are issued to open each exhaust valve in the oil channel of the speed control system in sequence, and the opening status of the exhaust valves is automatically monitored: (1) Open exhaust valve 1 and monitor the air pressure value; (2) Open the exhaust valve 2 and monitor the air pressure value; (3) The exhaust valve 3 is opened and the air pressure value is monitored; If all exhaust valves open normally and the air pressure is within the normal range, proceed to the next step; if they fail to open, an alarm will be issued and the operation process will be exited, and the number of the failed exhaust valve will be recorded.

[0044] Step 3: Delay exhaust Set the delay time (such as 30 seconds) according to the length of the oil channel and the exhaust requirements to ensure that the air in the oil channel is fully discharged.

[0045] During the delay process, the oil pressure and air pressure changes are monitored in real time: (1) Is the oil pressure within the normal range? (2) Whether the air pressure is within the normal range; (3) Whether the exhaust valve remains open; If any abnormality is found, an alarm will be issued immediately and the operation process will be exited, and the abnormal situation will be recorded.

[0046] Step 4: Close the exhaust valve After the delay is over, the remote control issues a command to close each exhaust valve in the oil channel of the speed control system in sequence, and automatically monitors the closing status of the exhaust valve: (1) Exhaust valve 1 is closed; (2) Exhaust valve 2 is closed; (3) Exhaust valve 3 is closed.

[0047] If all exhaust valves close normally, proceed to the next step; if they fail to close, an alarm will sound and the operation process will be exited, and the number of the failed exhaust valve will be recorded.

[0048] Step 5: Confirm exhaust completion Automatically monitor whether the oil pressure in the oil channel returns to normal: (1) Whether the oil pressure is within the set normal range; (2) Are all exhaust valves closed? If it returns to normal, confirm that the exhaust is completed and proceed to the next step; if the oil pressure is abnormal, an alarm will be issued and the operation failure will be prompted, and the abnormal situation will be recorded.

[0049] Step 6: Record and feedback The entire exhaust operation process is recorded in the monitoring system log, including: (1) Operation time; (2) Exhaust valve status (opening / closing time); (3) Oil pressure change curve; (4) Air pressure change curve; (5) Alarm information; Feedback the exhaust operation results to the operator, indicating success or failure, and displaying a detailed operation log.

[0050] Step 7: Check the status of the gas system After the exhaust operation is completed, it automatically checks whether the gas system pressure returns to normal: (1) Whether the air pressure is within the set normal range; (2) Whether the gas system alarm signal is cleared; If it returns to normal, proceed to the next step; if the air pressure is abnormal, an alarm will be issued and the operation will be prompted to fail, and the abnormal situation will be recorded.

[0051] Step 8: Check the status of the monitoring system After the exhaust operation is completed, the monitoring system automatically checks whether it has recorded the complete exhaust operation process: (1) Whether the operation log is complete; (2) Whether the data is consistent; (3) Whether the communication is normal; If the record is complete, the process ends; if the record is incomplete, an alarm is issued and the operation fails, and the abnormal situation is recorded.

[0052] In addition, a status bar "Oil channel exhaust automatic operation allowed for turbine speed control system" is designed in the computer monitoring to automatically determine whether the oil channel exhaust automatic operation process is available. If the following conditions are met, the next step can be carried out, prompting the operator to perform one-click operation: (1) The generator is shut down and the main transformer is shut down; (2) The speed control system is in shutdown state; (3) The oil pressure is normal; (4) The exhaust valve control method is remote; (5) No alarm signal; (6) The gas system pressure is normal; (7) The monitoring system is in normal status; (8) The oil channel temperature is within the normal range.

[0053] Each step must strictly adhere to the established sequence and conditions to ensure safety and efficiency. During the initial inspection, it is imperative to confirm that the speed control system is shut down, the oil pressure is normal, the exhaust valve control mode is remote, there are no alarm signals, the air system pressure is normal, the monitoring system communication is normal, and the oil channel temperature is appropriate. If any of these conditions are not met, subsequent operations should be suspended to investigate and resolve the issue. After the inspection is completed, open the exhaust valves one by one. After each valve is opened, immediately monitor its status to ensure successful opening. Attention should also be paid to the operation sequence and time interval to avoid excessive oil pressure fluctuations. During the exhaust delay, monitor the oil pressure, air pressure, and exhaust valve status in real time. If any abnormality is detected, immediately stop the operation and issue an alarm. After the delay expires, close the exhaust valves in sequence, again monitoring the closure status of each valve to ensure accurate operation. After closing all exhaust valves, wait for the oil pressure to return to normal. Evaluate the exhaust performance through various methods. Once confirmed, record the entire operation process in the monitoring system log, including time, status, pressure changes, and alarm information, and provide timely feedback to the operator. Then, check whether the air system pressure has returned to normal and clear the alarm to ensure that the air system and speed control system are functioning properly. Finally, a comprehensive inspection of the monitoring system status is conducted, the operational process is evaluated, lessons learned are summarized, and improvement suggestions are made to restore the equipment to normal operation and prepare for subsequent power generation operations. The entire process requires operators to monitor the entire process and be ready to handle emergencies at any time to ensure the smooth completion of the exhaust operation and the safe and stable operation of the equipment.

[0054] Example 5 In another preferred embodiment, based on the above-mentioned embodiment 4, this embodiment provides an automated process method for exhausting the oil passages of a turbine speed control system, which is specifically as follows: Step 1: Initialization check Operation preparation: When the turbine is shut down, the main transformer is out of service, and the speed control system is in shutdown state, the operator initiates the oil channel exhaust operation command through the human-machine interface of the monitoring system; before issuing the command, the operator needs to confirm that the status of the on-site equipment is consistent with the status displayed by the monitoring system to ensure a safe operating environment.

[0055] Automatic system check: After receiving the operation command, the system automatically performs a comprehensive check of various conditions according to the preset program: Generator shutdown status check: Through the communication interface with the generator control system, the generator operation status signal is obtained to confirm that the generator is in the shutdown state. If the generator is not shut down, the system records the abnormal information of "generator not shut down"; Main transformer shutdown status check: Also obtain the main transformer operation status signal through the communication interface to confirm that the main transformer is shut down. If the main transformer is not shut down, record the "main transformer is not shut down" exception; Speed control system shutdown status check: Check the control signal and status feedback of the speed control system to confirm that the speed control system is in the shutdown state. If the speed control system is not shut down, record the "speed control system is not shut down" exception; Oil pressure check: Use the pressure sensor installed in the oil channel to obtain real-time oil pressure data and compare it with the preset normal oil pressure range (for example, set to [1.8, 2.2] according to the actual equipment situation, and the unit can be set according to the actual situation). If the oil pressure is not within this range, "Oil pressure abnormality" and the current oil pressure value will be recorded; Check the exhaust valve control mode: Check the exhaust valve control mode setting and confirm that it is in remote control mode. If the control mode is not remote control, record the "Exhaust valve control mode is not remote" exception; Alarm signal check: Scan the alarm signal channel of the entire speed control system to confirm that there is no alarm signal. If there is an alarm signal, record the specific alarm information; Gas system pressure check: Obtain gas pressure data through the pressure sensor in the gas system and compare it with the preset normal pressure range (such as [0.9, 1.1], the unit can be set according to actual conditions). If the pressure is not within this range, record "gas system pressure abnormality" and the current pressure value; Monitoring system status check: Check the monitoring system's communication status, data storage status, etc. to ensure the normal operation of the monitoring system. If the monitoring system fails, record "monitoring system abnormality" and the type of failure; Oil channel temperature check: Use the temperature sensor in the oil channel to obtain oil channel temperature data and compare it with the preset normal oil channel temperature range (such as [10, 50]℃, which can be adjusted according to actual conditions). If the oil channel temperature is not within this range, record "Oil channel temperature abnormality" and the current temperature value; Check the status bar of "Oil duct exhaust automatic operation of turbine speed governing system is allowed": confirm that the status bar of "Oil duct exhaust automatic operation of turbine speed governing system is allowed" in the computer monitoring system shows that the operation conditions are met. If the status bar shows that the conditions are not met, record the abnormality of "Oil duct exhaust automatic operation conditions are not met"; Result judgment and processing: If all conditions are met, the system will display "Initialization check passed" on the monitoring interface and proceed to the next step; if any condition is not met, the system will immediately display the specific reason for not meeting the operating conditions in the abnormal prompt area of the monitoring interface, and record the corresponding abnormal information in the system log, and the process will terminate.

[0056] Step 2: Exhaust valve opening operation Command transmission: The system sends opening commands to exhaust valves 1, 2, and 3 in the speed control system oil channel in a preset order through the remote command transmission channel. Before sending the command, the system reconfirms that the exhaust valve control mode is in remote control and there are no alarm signals. The command transmission uses a redundant communication method to ensure that the command accurately reaches the exhaust valve control device; Condition monitoring: Real-time monitoring of the opening status of each exhaust valve is performed by obtaining feedback signals through position sensors or condition feedback devices installed on the exhaust valves. For example, when the exhaust valve is fully opened, a specific electrical signal is sent to the monitoring system. The system analyzes and judges the feedback signals in real time. Abnormal handling: If exhaust valve 1, exhaust valve 2, and exhaust valve 3 are all successfully opened, the system records the opening time of each exhaust valve (accurate to milliseconds) and displays "Exhaust valve opened successfully" on the monitoring interface, and enters the delayed exhaust step; if any exhaust valve fails to open, for example, the opening signal of exhaust valve 2 is not normally fed back, the system immediately stops subsequent operations and records the abnormal number, abnormal occurrence time, and current operation steps of exhaust valve 2. At the same time, abnormal information is displayed in a prominent position on the monitoring interface, such as "Exhaust valve 2 failed to open, please check the exhaust valve equipment", and the abnormal information is recorded in the system log, and the process terminates. The operator can repair exhaust valve 2 based on the abnormal information. After the repair is completed, the abnormal record can be cleared through the reset function of the monitoring system and the exhaust operation command can be re-initiated.

[0057] Step 3: Delay exhaust process Delay time setting: Based on the oil channel length and exhaust requirements, the system sets the delay time to 30 seconds (the specific time can be adjusted within the range of [20, 60] seconds according to actual conditions). The delay time setting takes into account the diffusion and exhaust time of the air in the oil channel to ensure that the air in the oil channel is fully exhausted; Real-time monitoring: During the delay process, the system continuously monitors changes in oil and air pressure in real time. High-precision pressure sensors collect oil and air pressure data every 100 milliseconds and store the data in the system's temporary data buffer. At the same time, changes in oil and air pressure are displayed in real time on the monitoring interface as dynamic curves for easy observation by operators. The normal value for oil pressure is set to 2.0 (the unit can be set according to actual conditions), and the normal value for air pressure is set to 1.0 (the unit can be set according to actual conditions). The allowable fluctuation range for oil and air pressure is also set (e.g., the oil pressure fluctuation range is ±0.1, and the air pressure fluctuation range is ±0.05). Abnormal judgment and processing: If during the delay process, the oil pressure suddenly rises to 2.5 or the air pressure drops to 0.5, etc., the system will immediately make an abnormal judgment; first, check whether the sensor data is accurate, and eliminate the possibility of sensor failure by comparing the data of multiple sensors; if the data is confirmed to be accurate, the system will immediately record the time when the abnormality occurred, the specific values of the oil pressure and air pressure at the time of the abnormality, and the abnormal exhaust valve number (if it can be located); at the same time, the abnormal situation will be displayed in a red warning message on the monitoring interface, such as "The oil pressure has abnormally risen to 2.5, please check the oil channel system", and the abnormal information will be recorded in the system log, and the process will be terminated; the operator can check the oil channel system based on the abnormal information, such as whether the oil pump is operating abnormally, whether the oil channel is blocked, etc.

[0058] Step 4: Exhaust valve closing operation Command transmission: After the delay ends, the system sends closing commands to exhaust valve 1, exhaust valve 2, and exhaust valve 3 in the same preset order as the opening order through the remote command transmission channel; the command transmission also adopts redundant communication mode to ensure that the command accurately reaches the exhaust valve control device; Status monitoring: Real-time monitoring of the closing status of each exhaust valve, obtaining feedback signals through the position sensor or status feedback device on the exhaust valve; the system analyzes and judges the feedback signals in real time to confirm whether the exhaust valve is successfully closed; Abnormal handling: If exhaust valve 1, exhaust valve 2, and exhaust valve 3 are all closed successfully, the system records the closing time of each exhaust valve (accurate to milliseconds) and displays "Exhaust valve closed successfully" on the monitoring interface, and enters the exhaust completion confirmation step; if any exhaust valve fails to close, for example, the exhaust valve 3 closing signal is not normally fed back, the system immediately stops subsequent operations, records the abnormal number of exhaust valve 3, the time of abnormal occurrence, and the current operation steps; at the same time, the abnormal information is displayed in a prominent position on the monitoring interface, such as "Exhaust valve 3 failed to close, please check the exhaust valve equipment", and the abnormal information is recorded in the system log, and the process terminates; the operator can inspect the exhaust valve 3 according to the abnormal information. After the inspection is completed, the abnormal record can be cleared through the reset function of the monitoring system and the exhaust operation command can be re-initiated.

[0059] Step 5: Confirm exhaust completion Oil pressure check: The system obtains oil pressure data from the pressure sensor in the oil channel and checks whether the oil pressure has returned to the normal range (such as [1.9, 2.1], which can be adjusted according to actual conditions). To improve the accuracy of the judgment, the system uses a multi-sampling averaging method, collecting oil pressure data every 1 minute for 3 consecutive times, and then comparing the average value with the normal range. Judgment and processing: If the oil pressure returns to normal, the exhaust is determined to be completed, and "Exhaust completion confirmed successful" is displayed on the monitoring interface; if the oil pressure does not return to normal, the system automatically performs multiple repeated checks, with an interval of 5 minutes between each check (the time is adjustable); if the oil pressure is still abnormal after 3 consecutive checks, the exhaust is determined to be incomplete, and the monitoring interface prompts "Exhaust is not completed, please further check the oil channel for leaks, etc.", and records the relevant inspection time and oil pressure data; the operator can conduct a detailed inspection of the oil channel according to the prompts, such as checking whether the oil channel connection is well sealed and whether the oil pipe is damaged.

[0060] Step 6: Operation Record and Feedback Data Logging: The system records the entire exhaust operation in detail in the monitoring system log. This includes the operation time (accurate to the second), exhaust valve status (specific opening and closing times, accurate to the millisecond), oil pressure curve (a curve consisting of data points collected every 100 milliseconds), air pressure curve (a curve consisting of data points collected every 100 milliseconds), and alarm information (including abnormality type, occurrence time, and related equipment number). Data logging uses encrypted storage to ensure data security and integrity. Feedback display: At the same time, the exhaust operation results are fed back to the operator in real time in the operation result feedback area of the monitoring interface, such as "exhaust operation successful" or "exhaust operation failed and the reason for failure"; the feedback information is displayed in a clear and eye-catching manner, making it convenient for the operator to understand the operation status in a timely manner.

[0061] Step 7: Review the status of the gas system Sampling detection: After the exhaust operation is completed, the system automatically checks whether the gas system pressure has returned to normal levels. Use a multi-point sampling and averaging method. For example, set up three sampling points at different locations in the gas system, and collect air pressure data at each sampling point every 1 minute. Collect data three times in a row, take the average value as the air pressure value of the sampling point, and then take the average value of the air pressure of the three sampling points as the gas system pressure value; Judgment and Processing: Compare the calculated gas system pressure value with the preset normal pressure range (e.g., [0.95, 1.05], with the unit adjustable). If the gas system pressure does not return to normal, the abnormal data is recorded and reported. The monitoring interface displays "Gas system pressure abnormality, current pressure value is X (record actual pressure value)" and the abnormal information is recorded in the system log, terminating the process. The operator can use this abnormal information to inspect the gas system, such as checking the gas source equipment for normal operation and the air pipe for leaks.

[0062] Step 8: Verify the monitoring system status System inspection: System inspection to see if the monitoring system is operating normally, including whether the communication is normal and whether the data records are complete. Specific inspection items include whether the communication link between the monitoring system and each device is unobstructed, whether the data transmission is accurate, and whether there are any abnormal records in the system log. Result judgment and processing: If the monitoring system is abnormal, the abnormal information of the monitoring system will be recorded and reported, and the monitoring interface will prompt "Monitoring system abnormality, please check the monitoring system equipment"; if the monitoring system is normal, the entire exhaust operation is judged to be successful, and the monitoring interface will display "The turbine speed control system oil channel exhaust automation process operation is successful."

[0063] Through the explanation and description of the five embodiments above, the present invention's automated process method for exhausting the oil passages of a turbine speed control system demonstrates significant differences compared to the closest existing technology. Existing technologies typically rely on manual operation, which presents challenges such as complexity, low efficiency, prone to omissions, and potential safety hazards. The present invention, however, implements the entire exhaust process through automated control, significantly improving operational efficiency and safety.

[0064] In the preferred solution, the specific operating steps of the Step 1 initialization check are to conduct a comprehensive check of the generator shutdown status, main transformer shutdown status, speed control system shutdown status, oil pressure normality, remote status of the exhaust valve control mode, absence of alarm signals, gas system pressure normality, monitoring system status normality, and oil channel temperature normal range. When all conditions are met, the initialization check is determined to have passed and subsequent operations are carried out. If any condition is not met, it is determined that the operating conditions are not met and the process is terminated. The above settings are intended to ensure that the equipment is in a safe and stable preparatory state and avoid safety hazards during operation. Items that do not meet the conditions must be immediately recorded and notified to maintenance personnel for processing. The initialization check process can only be restarted after all conditions have been verified to be correct.

[0065] In the preferred solution, the normality of the monitoring system status includes confirming that the communication status of the monitoring system is normal and there is no fault alarm; the above settings must also ensure that the data acquisition module operates stably and the data is updated in real time; the storage system is safe and reliable, and the historical records are complete and traceable; at the same time, the interface display is clear, the operation response is fast, and the overall system performance meets the preset standards.

[0066] In the preferred solution, in the process of opening the exhaust valve in Step 2, if any exhaust valve fails to open, an alarm will be immediately issued and the operation process will be exited, and the number of the failed exhaust valve will be recorded at the same time; the above settings ensure that the system can respond quickly when an exhaust valve failure is detected, avoiding potential safety hazards; in addition, recording the number of the failed exhaust valve will facilitate subsequent maintenance and improve the stability and reliability of the overall system.

[0067] In the preferred solution, if abnormal oil pressure or air pressure, or abnormal exhaust valve status is found during the delayed exhaust process in Step 3, an alarm will be immediately triggered and the operation process will be exited, and the abnormal situation will be recorded at the same time. The above settings ensure operational safety and prevent accidents caused by equipment failure. In addition, the system will automatically attempt to perform preliminary troubleshooting and send the troubleshooting results and recommended repair measures to the maintenance personnel terminal for rapid response and processing.

[0068] In the preferred solution, in the process of closing the exhaust valve in Step 4, the order of closing the exhaust valve is consistent with the order of opening, and the closing action of each exhaust valve is fed back and confirmed in real time during the closing process; the above settings ensure the safe and stable closure of the exhaust system, effectively avoid the abnormal system pressure caused by improper closure of the exhaust valve, improve the accuracy and reliability of the overall operation, and further optimize the operating efficiency of the system.

[0069] In the preferred solution, in the process of closing the exhaust valve in Step 4, if any exhaust valve fails to close, an alarm will be immediately issued and the operation process will be exited, and the number of the failed exhaust valve will be recorded. The above settings ensure that the system can respond to abnormal situations in a timely manner to avoid further loss of resources or potential safety risks. In addition, the system will automatically try to restart the exhaust valve that failed to close. If multiple attempts fail, it will enter maintenance mode and wait for manual inspection.

[0070] In the preferred solution, during Step 5, if the oil pressure has not returned to normal during confirmation of venting completion, the system automatically repeats multiple checks, each with a predetermined interval. If the oil pressure remains abnormal after multiple consecutive checks, the venting is deemed incomplete and appropriate measures are taken. This configuration ensures the stability of the oil pressure system and prevents potential failures. If venting is finally confirmed to be complete, the system automatically proceeds to the next operational stage. If the problem persists, an alarm is triggered and maintenance personnel are notified to intervene.

[0071] In the preferred solution, the entire process record of the Step 6 exhaust operation includes the operation time, exhaust valve status (open / close time), oil pressure change curve, air pressure change curve and alarm information; the above settings ensure that each step of the operation is traceable, which facilitates troubleshooting and analysis; at the same time, the system can monitor and automatically record abnormalities in real time, such as triggering an alarm when the oil pressure and air pressure exceed the preset range, thereby improving the safety and efficiency of the overall operation.

[0072] In the preferred solution, the specific operation process of Step 7 is to automatically check whether the gas system pressure has returned to normal after the exhaust operation is completed, and confirm whether the gas system alarm signal has been cleared; if the gas system pressure is abnormal or there is an uncleared alarm signal, an alarm will be immediately issued and the operation failure will be prompted, and the abnormal situation will be recorded at the same time; the above settings ensure the safety and stability of the gas system; if everything is normal, proceed to the next step and prepare to restart the equipment and perform functional testing to fully verify the effectiveness of the exhaust operation and system recovery.

[0073] In the preferred solution, the specific operation steps of Step 8 are to check the operating status of the monitoring system. If the monitoring system is abnormal, record and report the abnormal information of the monitoring system, prompting that there is an abnormality in the operation process and needs to be checked; if the monitoring system is normal, the entire exhaust operation is determined to be successful; the above settings ensure that the system can continue to operate stably in subsequent operations; in addition, this step also includes a preliminary analysis of the recorded data to identify potential failure trends, provide data support for preventive maintenance, and further improve overall operational efficiency.

[0074] In a preferred solution, the monitoring system's operational status check also includes ensuring that the system records the complete exhaust operation process, including the integrity of the operation log, data consistency, and normal communication. If the record is incomplete or inconsistent, an alarm will be immediately issued, indicating the operation failed, and the abnormality will be recorded for subsequent investigation and repair. This configuration is designed to ensure that every step of the exhaust operation is traceable and verifiable, ensuring the stability and security of system operation. Furthermore, the solution includes a regular automatic testing mechanism that simulates exhaust operations to verify the system's response speed and the effectiveness of the alarm function, further strengthening the reliability of the monitoring system.

[0075] In the preferred solution, in the process of opening the exhaust valve in Step 2, it is necessary to confirm again that the exhaust valve control mode is in the remote control state and there is no alarm signal interference before opening the exhaust valve; the above setting can ensure that the exhaust valve is opened safely and accurately under remote instructions, avoid operational errors caused by incorrect control mode or alarm signal interference, and further ensure the stability and safety of system operation.

[0076] In the preferred solution, during the delayed exhaust process in Step 3, if abnormal oil or air pressure is detected, in addition to recording and reporting the abnormal exhaust valve number, the time of the abnormality and the specific oil and air pressure values at the time of the abnormality are also recorded. This configuration can more accurately locate the source of the problem, providing detailed data support for subsequent troubleshooting and maintenance. At the same time, the system will automatically trigger an early warning mechanism, notifying relevant personnel to intervene promptly to ensure the safety and stability of equipment operation.

[0077] In the preferred solution, in Step 6, after the exhaust operation is completed, the gas system pressure is checked by multi-point sampling and averaging to improve the accuracy of the detection results. The above setting ensures that even if there is local pressure unevenness during the exhaust process, more comprehensive data can be captured through multi-point sampling, thereby effectively avoiding misjudgment and improving the stability and safety of the entire system.

[0078] In summary, the automated process method for venting the oil passages of a turbine speed governing system proposed in this invention provides an effective solution to a series of challenges encountered in conventional venting operations. Previous operations have long been plagued by complex processes, low efficiency, missed steps, and potential safety hazards. This invention successfully overcomes the limitations of manual venting in existing technologies, focusing on automated processes and bringing a new approach to this field.

[0079] The present invention realizes the automated control of the entire process from initialization inspection to final monitoring system status inspection, which is a groundbreaking design. During the initialization inspection stage, the inspection content is comprehensive and detailed, covering not only conventional equipment status inspections, but also in-depth oil pressure, exhaust valve control mode, alarm signals and other key aspects, laying a solid foundation for subsequent operations. During operation, the real-time and advanced monitoring and feedback mechanism can timely capture information such as exhaust valve status, oil pressure and air pressure changes, ensuring that operators are aware of system dynamics at the first time. The unique detection method further improves the accuracy of the test results and provides a strong guarantee for the precise execution of exhaust operations.

[0080] This invention organically combines multiple key technical features to form a complete and efficient automated exhaust process. This combination is not a simple stacking of technologies, but rather a meticulous design that allows each link to work together and coordinate to maximize efficiency. Simultaneously, a thorough inspection of the monitoring system status is performed, focusing not only on communication status and fault alarms, but also on the integrity of operation logs and data consistency. This helps to promptly identify potential issues with the monitoring system and ensure the reliability of the entire exhaust process.

[0081] This invention incorporates a comprehensive and detailed mechanism for handling various abnormal situations. From recording abnormal information and issuing alarms to exiting the operational process, as well as implementing additional measures for certain abnormalities, such as repeated oil pressure checks, these designs effectively address various emergencies and ensure system stability and safety. These innovative designs offer significant advantages in improving operational efficiency, ensuring personnel and equipment safety, and enhancing detection accuracy. They demonstrate unique value and competitiveness, bringing substantial improvements and enhancements to the oil channel venting operation of turbine speed control systems.

Claims

1. A method for automating the exhaust of the oil passage of a turbine speed control system, characterized in that: The following steps are involved: Step 1: Initialize the inspection to ensure that the oil passage exhaust of the turbine speed control system is ready for operation; Step 2: Remotely issue a command to open each exhaust valve in the oil channel of the speed control system in sequence, and monitor the opening status and air pressure of the exhaust valve in real time; Step 3: Set the delay time according to the oil channel length and exhaust requirements, and monitor the changes in oil pressure and air pressure in real time during the delayed exhaust process; Step 4: After the delay ends, the remote control issues a command to close each exhaust valve in turn, and automatically monitors the closing status of the exhaust valve; Step 5: Automatically monitor whether the oil pressure in the oil channel has returned to normal, and confirm whether all exhaust valves are fully closed to confirm that exhaust is complete; Step 6: Record the entire exhaust operation process in the monitoring system log and provide feedback on the exhaust operation results to the operator; Step 7: After the exhaust operation is completed, check the gas system pressure; Step 8: Check the operating status of the monitoring system.

2. The method for automating the oil passage exhaust process of a turbine speed control system according to claim 1, characterized in that: The specific operation steps of the Step 1 initialization check are to conduct a comprehensive check on the generator shutdown status, main transformer shutdown status, speed control system shutdown status, oil pressure normality, remote status of the exhaust valve control mode, absence of alarm signals, gas system pressure normality, monitoring system status normality, and oil channel temperature normal range; when all conditions are met, it is determined that the initialization check has passed and subsequent operations are entered; if any condition is not met, it is determined that the operating conditions are not met and the process is terminated.

3. The method for automating the oil passage exhaust process of a turbine speed regulating system according to claim 2, characterized in that: The normality of the monitoring system status includes confirming that the communication status of the monitoring system is normal and there is no fault alarm.

4. The method for automating the oil passage exhaust process of a turbine speed regulating system according to claim 3, characterized in that: In the process of opening the exhaust valves in Step 2, if any exhaust valve fails to open, an alarm will be immediately triggered and the operation process will be exited, while the number of the failed exhaust valve will be recorded.

5. The method for automating the oil passage exhaust process of a turbine speed regulating system according to claim 4, characterized in that: In the delayed exhaust process of Step 3, if the oil pressure or air pressure is abnormal, or the exhaust valve state is abnormal, an alarm will be immediately triggered and the operation process will be exited, and the abnormal situation will be recorded at the same time.

6. The method for automating the oil passage exhaust process of a turbine speed regulating system according to claim 5, characterized in that: In the process of closing the exhaust valves in Step 4, the order of closing the exhaust valves is consistent with the order of opening the exhaust valves, and the closing action of each exhaust valve is fed back and confirmed in real time during the closing process.

7. The method for automating the oil passage exhaust process of a turbine speed regulating system according to claim 6, characterized in that: In the process of closing the exhaust valves in Step 4, if any exhaust valve fails to close, an alarm will be immediately triggered and the operation process will be exited, while the number of the failed exhaust valve will be recorded.

8. The method for automating the oil passage exhaust process of a turbine speed regulating system according to claim 7, characterized in that: In Step 5, when confirming that the exhaust is complete, if the oil pressure has not returned to normal, the system automatically performs multiple repeated checks with a certain interval between each check. If the oil pressure is still abnormal after multiple consecutive checks, it is determined that the exhaust is not complete and corresponding measures are taken.

9. The method for automating the oil passage exhaust process of a turbine speed regulating system according to claim 8, characterized in that: The entire process record of the Step 6 exhaust operation includes the operation time, exhaust valve status, oil pressure change curve, air pressure change curve and alarm information.

10. The method for automating the oil passage exhaust process of a turbine speed regulating system according to claim 9, characterized in that: The specific operation process of Step 7 is to automatically check whether the gas system pressure has returned to normal after the exhaust operation is completed, and confirm whether the gas system alarm signal has been cleared; if the gas system pressure is abnormal or there is an uncleared alarm signal, an alarm will be immediately sounded and the operation failure will be prompted, and the abnormal situation will be recorded at the same time.

11. The method for automating the oil passage exhaust process of a turbine speed regulating system according to claim 10, characterized in that: The specific operation steps of Step 8 are to check the operating status of the monitoring system. If the monitoring system is abnormal, record and report the abnormal information of the monitoring system, prompting that the operation process has abnormalities and needs to be checked; if the monitoring system is normal, the entire exhaust operation is determined to be successful.

12. The method for automating the oil passage exhaust process of a turbine speed regulating system according to claim 11, characterized in that: The operating status check of the monitoring system also includes whether the monitoring system records the complete exhaust operation process, including whether the operation log is complete, whether the data is consistent, and whether the communication is normal; if the record is incomplete or there is data inconsistency, an alarm will be immediately issued and the operation failure will be prompted, and the abnormal situation will be recorded for subsequent investigation and repair.

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