WO2024193103A1 - 一种蓄能水电站水轮机辅助和调速系统故障诊断定位系统 - Google Patents

一种蓄能水电站水轮机辅助和调速系统故障诊断定位系统 Download PDF

Info

Publication number
WO2024193103A1
WO2024193103A1 PCT/CN2023/136739 CN2023136739W WO2024193103A1 WO 2024193103 A1 WO2024193103 A1 WO 2024193103A1 CN 2023136739 W CN2023136739 W CN 2023136739W WO 2024193103 A1 WO2024193103 A1 WO 2024193103A1
Authority
WO
WIPO (PCT)
Prior art keywords
turbine
hydropower station
speed
storage hydropower
pumped
Prior art date
Application number
PCT/CN2023/136739
Other languages
English (en)
French (fr)
Inventor
周玉权
李德武
季怀杰
侯梦龙
方勇
谢国栋
刘欣
林杰胜
林泳骏
冯文嵛
刘冠杰
Original Assignee
南方电网调峰调频发电有限公司运行分公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 南方电网调峰调频发电有限公司运行分公司 filed Critical 南方电网调峰调频发电有限公司运行分公司
Publication of WO2024193103A1 publication Critical patent/WO2024193103A1/zh

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03B—MACHINES OR ENGINES FOR LIQUIDS
    • F03B15/00—Controlling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03B—MACHINES OR ENGINES FOR LIQUIDS
    • F03B11/00—Parts or details not provided for in, or of interest apart from, the preceding groups, e.g. wear-protection couplings, between turbine and generator
    • F03B11/008—Measuring or testing arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03B—MACHINES OR ENGINES FOR LIQUIDS
    • F03B13/00—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
    • F03B13/06—Stations or aggregates of water-storage type, e.g. comprising a turbine and a pump
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/20—Hydro energy

Definitions

  • the invention relates to the technical field of water conservancy equipment, and more specifically to a fault diagnosis and positioning system for a turbine auxiliary and speed regulating system of an energy storage hydropower station.
  • a hydroturbine is a power machine that converts the energy of water flow into rotational mechanical energy. It belongs to the turbine machinery in fluid machinery. Most modern hydroturbines are installed in hydropower stations to drive generators to generate electricity. In a hydropower station, water from the upstream reservoir is led to the hydroturbine through a water diversion pipe, which drives the turbine runner to rotate and drives the generator to generate electricity. The water that has done work is discharged downstream through the tailwater pipe. The higher the head and the greater the flow, the greater the output power of the hydroturbine. Hydroturbines can be divided into two categories according to their working principles: impulse turbines and reaction turbines. The runner of an impulse turbine rotates under the impact of the water flow.
  • the pressure of the water flow remains unchanged, which is mainly the conversion of kinetic energy; the runner of a reaction turbine rotates in the water under the reaction force of the water flow.
  • the pressure energy and kinetic energy of the water flow change, but it is mainly the conversion of pressure energy.
  • Water is one of the most important natural resources that humans can rely on in life and production.
  • turbine failure mainly refers to the failure of the auxiliary and speed regulation system of the turbine in the pumped storage hydropower station, that is, the turbine completely loses or partially loses its working ability, that is, it loses all or part of the technical capabilities determined by the basic working parameters.
  • Working state generally, turbine failures are divided into two categories: gradual failures and sudden failures. Gradual failures are mostly caused by the cumulative results of parts wear and fatigue.
  • the fault diagnosis process for the auxiliary and speed regulating system of the turbine of a pumped-storage hydropower station is that the maintenance personnel observe the appearance of the generator set to determine the model, age, usage status and location that needs maintenance, and then observe whether the excitation voltage, excitation current and stator current of the generator are normal. This can prevent the generator from being damaged by circuit faults such as overload, phase loss, and generator stator. At the same time, it is also necessary to see whether the color of the generator's outlet connector has changed.
  • there is no complete system for diagnosing faults in the auxiliary and speed regulating system of the turbine of a pumped-storage hydropower station which leads to low efficiency in handling faults by staff when faults occur. They are unable to make a good judgment on the faults and quickly locate the faults, resulting in low efficiency in handling faults, causing unnecessary economic losses and even affecting people's lives.
  • a fault diagnosis and positioning system for a hydraulic turbine auxiliary and speed regulating system of a pumped-storage hydropower station comprising a diagnosis module and a positioning module. After the diagnosis module determines that a hydraulic turbine auxiliary and speed regulating system of a pumped-storage hydropower station has a fault, the positioning module locates the fault position.
  • the positioning module is used to identify whether the lubrication mechanism and water wheel mechanism of the turbine of the pumped storage hydropower station are abnormal. If there is no abnormality, it is determined that the fault is caused by external factors.
  • the diagnostic module starts the turbine of the pumped storage hydropower station manually, manually adjusts the impeller speed of the turbine of the pumped storage hydropower station, and then detects whether the turbine speed is abnormal through a speed meter.
  • the speed meter is an instrument used to measure the driving speed of the vehicle. Commonly used speed meters include radar speed meters and laser speed meters. Among them, the speed measurement principle of the radar speed meter is the Doppler effect; the speed measurement principle of the laser speed meter is laser ranging.
  • Fixed speed guns are speed measuring instruments that measure speed in a fixed position. This refers to the speed measurement by fixing the vehicle speed gun on a pole, gantry or speed box. It is mostly used on highways. Laser speed guns use the principle of laser distance measurement.
  • bearing clearance becomes larger can be checked manually by a person.
  • the no-load frequency oscillation may cause the contact surface between the impeller and the water to shift, resulting in a change in the impeller's rotational resistance, which in turn may lead to a speed regulation failure.
  • the staff starts the pumped-storage hydropower station turbine through the auxiliary and speed regulating system to make it run at no-load, and detects the rotation speed of the turbine through the tachometer to determine whether the turbine is faulty, thereby quickly determining whether the turbine is normal. If the rotation speed of the turbine measured by the tachometer is normal, it means that the pumped-storage hydropower station turbine is normal and can be used normally. If the measurement result does not conform to the design, it means that the pumped-storage hydropower station turbine has a fault, which saves time and effort and improves the efficiency of maintenance personnel in troubleshooting equipment.
  • FIG1 is a schematic diagram of the overall process of the present invention.
  • connection can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components.
  • connection can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components.
  • Embodiment 1 is a diagrammatic representation of Embodiment 1:
  • a fault diagnosis and positioning system for the auxiliary and speed regulating system of the turbine of a storage hydropower station includes a diagnosis module and a positioning module. After the diagnosis module determines that the auxiliary and speed regulating system of the turbine of the storage hydropower station is faulty, the positioning module locates the fault position; the diagnosis module manually determines whether the auxiliary and speed regulating system of the turbine of the storage hydropower station is normal; the positioning module is used to identify whether the lubrication mechanism and the turbine mechanism of the turbine of the storage hydropower station are abnormal. If there is no abnormality, it is determined that the fault is caused by external factors. The speed of the turbine is detected by the speed meter to determine whether the turbine is faulty, so as to quickly determine whether the turbine is normal.
  • the speed meter is an instrument used to measure the driving speed of the vehicle. Commonly used speed meters are radar speed meters and laser speed meters. Among them, the speed measurement principle of the radar speed gun is the Doppler effect; the speed measurement principle of the laser speed gun is laser ranging.
  • the main principle of the radar speed gun is the Doppler effect (Doppler Effect), that is, when the target approaches the radar antenna, the reflected signal frequency will be higher than the transmitter frequency; conversely, when the target moves away from the antenna, the reflected signal frequency will be lower than the transmitter frequency.
  • Doppler Effect Doppler Effect
  • the radar speed gun emits electromagnetic waves, which will be reflected back when they touch an object. When the touched object has a displacement movement toward or away from the object, there is a frequency difference between the electromagnetic waves emitted and reflected by the speed gun. The speed of the object can be obtained through this frequency difference, thereby achieving the purpose of speed measurement. It has been widely used Police speeding test and other industries. Radar speedometers are of two types: fixed and portable.
  • Laser speedometers are speed measuring instruments that measure in a fixed position. It refers to the speed measurement by fixing the vehicle speedometer on a pole, gantry or speed measurement box. It is widely used on highways.
  • the laser speedometer adopts the principle of laser ranging.
  • Laser ranging i.e. electromagnetic waves, with a speed of 300,000 kilometers per second
  • the laser speedometer performs laser ranging on the object being measured twice with a specific time interval, obtains the moving distance of the object being measured within the period, and thus obtains the moving speed of the object being measured.
  • laser speed measurement evidence system which includes a laser speed detector and a camera for measuring vehicle speed.
  • the speedometer tests the speed of each passing vehicle. Once the speedometer finds a speeding vehicle, it will automatically take an image of the illegal vehicle and record the time and target speed at that time.
  • traffic management law enforcement tool that provides a reliable technical means of collecting evidence for the management of speeding violations.
  • the use steps of the present invention are as follows: when the fault diagnosis and positioning system of the auxiliary and speed regulating system of the turbine of the energy-storage hydropower station is used, firstly, the staff starts the turbine of the energy-storage hydropower station through the auxiliary and speed regulating system to make it run at no-load, and detects the rotation speed of the turbine through the tachometer to determine whether the turbine is faulty, thereby quickly judging whether the turbine is normal. If the rotation speed of the turbine measured by the tachometer is normal, it means that the turbine of the energy-storage hydropower station is normal and can be used normally. If the measurement result does not conform to the design, it means that the turbine of the energy-storage hydropower station is faulty, which saves time and effort and improves the efficiency of maintenance personnel in troubleshooting equipment.
  • the diagnostic module manually starts the turbine of the pumped-storage hydropower station, manually adjusts the impeller speed of the turbine of the pumped-storage hydropower station, and then uses a tachometer to detect whether the turbine speed is abnormal, so as to quickly determine whether the turbine of the pumped-storage hydropower station is faulty.
  • the rotational speed (Rotational Speed or Rev) is the number of circles that an object doing circular motion rotates around the center of a circle along the circumference per unit time (different from the frequency). Common rotational speeds include rated speed and maximum speed, etc.
  • the hard disk speed is expressed in revolutions per minute, and the unit is expressed as RPM.
  • RPM is the abbreviation of Revolutions Per minute, which is revolutions per minute.
  • the failure of the turbine of the pumped storage hydropower station includes gradual failure and sudden failure.
  • the gradual failure is caused by the wear of parts, and the sudden failure is caused by the damage of parts.
  • Embodiment 2 is a diagrammatic representation of Embodiment 1:
  • the lubrication mechanism refers to the lubrication between the internal components of the turbine.
  • the lubrication mechanism By observing whether lubricating oil appears in the water, if lubricating oil appears, it means that the bearing seal is damaged or the bearing gap is large. Whether the bearing gap becomes larger can be checked manually.
  • the inspection of the turbine mechanism includes whether the turbine impeller is damaged or missing. External factors cause faults including water pressure stability fluctuation, speed control relay jitter, no-load frequency swing
  • the water pressure stability fluctuation will cause the impeller of the pumped hydropower station turbine to float under pressure, which can be checked by observing the water pressure gauge.
  • the jitter phenomenon of the speed control relay can be checked by manual observation.
  • the no-load frequency swing will cause the contact surface between the impeller and the water to shift, resulting in a change in the impeller rotation resistance, which in turn leads to a speed control failure.
  • the lubrication mechanism and the water wheel mechanism of the pumped hydropower station turbine are manually checked to see if they are faulty, thereby realizing the rapid positioning of the fault position of the lubrication mechanism, facilitating the maintenance of maintenance personnel, improving the efficiency of fault handling, reducing economic losses, and avoiding the impact on people's lives.
  • the use steps of the present invention are as follows: when the fault diagnosis and positioning system of the auxiliary and speed regulating system of the pumped-storage hydropower station turbine is in use, if the pumped-storage hydropower station turbine is determined to be faulty by the method of Example 1, the lubrication mechanism and the water wheel mechanism of the pumped-storage hydropower station turbine are manually checked to see if they are faulty, thereby achieving rapid positioning of the fault position of the lubrication mechanism, facilitating maintenance by maintenance personnel, improving the efficiency of fault handling, reducing economic losses, and avoiding the impact on people's lives.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Hydraulic Turbines (AREA)

Abstract

一种蓄能水电站水轮机辅助和调速系统故障诊断定位系统，属于水利设备领域，包括诊断模块和定位模块，诊断模块判定蓄能水电站水轮机辅助和调速系统故障后由定位模块进行定位故障位置；诊断模块通过人工判断蓄能水电站水轮机辅助和调速系统是否正常；定位模块用于甄别蓄能水电站水轮机的润滑机构和水轮机构是否异常，若无异常则判定为外部因素导致故障。该蓄能水电站水轮机辅助和调速系统故障诊断定位系统，提高了维修人员对设备故障检修效率，实现对该润滑机构故障位置的快速定位，方便维修人员的维修，提高了故障处理的效率，减少了经济损失，避免了人们生活受到影响。

Description

一种蓄能水电站水轮机辅助和调速系统故障诊断定位系统 技术领域
本发明涉及水利设备技术领域，更具体地说，涉及一种蓄能水电站水轮机辅助和调速系统故障诊断定位系统。
背景技术
水轮机(hydroturbine)是把水流的能量转换为旋转机械能的动力机械，它属于流体机械中的透平机械。现代水轮机则大多数安装在水电站内，用来驱动发电机发电。在水电站中，上游水库中的水经引水管引向水轮机，推动水轮机转轮旋转，带动发电机发电。作完功的水则通过尾水管道排向下游。水头越高、流量越大，水轮机的输出功率也就越大，水轮机按工作原理可分为冲击式水轮机和反击式水轮机两大类。冲击式水轮机的转轮受到水流的冲击而旋转，工作过程中水流的压力不变，主要是动能的转换；反击式水轮机的转轮在水中受到水流的反作用力而旋转，工作过程中水流的压力能和动能均有改变，但主要是压力能的转换，水是人类在生活和生产中能依赖的最重要的自然资源之一。
随着人民生活水平的不断提高，居民用电量逐渐加大,水电站的建设逐渐走进大家的视线，为了保证居民生活的稳定，必须保证发电机组的正常运行，因此工作，人员应该定期对发电机组进行维修和保养,及时排除故障，所谓水轮机故障，主要是指蓄能水电站水轮机辅助和调速系统故障，就是水轮机完全丧失或部分丧失工作能力，也就是丧失了基本工作参数所确定的全部或部分技术能力的工作状态，一般情况下水轮机故障分为渐变性故障和突发性故障两类，渐变故障多由零件磨损和疲劳现象的累积结果产生。
对于蓄能水电站水轮机辅助和调速系统故障诊断流程是维修人员观察发电机组的外观来确定机型、使用年限、使用状况和需要维修的位置，再观察发电机的励磁电压、励磁电流和发电机的定子电流是否正常，可以防止发电机出现过负荷、缺相、发电机定子等电路故障损坏发电机，同时，还要看发电机的出线接头颜色是否有变化，然而对于蓄能水电站水轮机辅助和调速系统故障的诊断没有一套完整的系统，导致故障发生的时候工作人员处理故障的效率较低，无法很好的对故障进行判断并且迅速的对故障进行定位，导致故障的处理效率较低，造成不必要的经济损失，甚至是影响人们的生活。
发明内容
1.要解决的技术问题
对于蓄能水电站水轮机辅助和调速系统故障的诊断没有一套完整的系统，导致故障发生的时候工作人员处理故障的效率较低，无法很好的对故障进行判断并且迅速的对故障进行定位，导致故障的处理效率较低，造成不必要的经济损失，甚至是影响人们的生活，通过本发明提供的一种蓄能水电站水轮机辅助和调速系统故障诊断定位系统可以有步骤的对蓄能水电站水轮机辅助和调速系统故障进行诊断，且对故障的位置进行定位，提高工作人员处理故障的效率，可以很好的对故障进行判断并且迅速的对故障进行定位。
2.技术方案
一种蓄能水电站水轮机辅助和调速系统故障诊断定位系统，包括诊断模块和定位模块，诊断模块判定蓄能水电站水轮机辅助和调速系统故障后由定位模块进行定位故障位置；
诊断模块通过人工判断蓄能水电站水轮机辅助和调速系统是否正常；
定位模块用于甄别蓄能水电站水轮机的润滑机构和水轮机构是否异常，若无异常则判定为外部因素导致故障。
优选地，诊断模块通过人工启动蓄能水电站水轮机，手动调节蓄能水电站水轮机叶轮转速，之后通过测速仪检测水轮机转速是否异常，测速仪是用来测量车辆的行驶速度的仪器。常用的测速仪有雷达测速仪和激光测速仪两种。其中，雷达测速仪的测速原理为多普勒效应；激光测速仪的测速原理为激光测距，雷达测速仪的主要原理是多普勒效应(Doppler Effect)，即当目标向雷达天线靠近时，反射信号频率将高于发射机频率；反之，当目标远离天线而去时，反射信号频率将低于发射机频率。雷达测速仪发射电磁波，碰触到物体的时候会反射回来。当触碰到的物体有朝向或者背向的位移运动时，测速仪发射与反射回来的电磁波有个频率差，通过这个频率差从而求得物体运动的速度，实现速度测量的目的。现已经广泛用于警察超速测试等行业。雷达测速仪有固定式和便携式两种，固定式测速仪顾名思义是以位置固定不动的方式进行测量的测速仪器。指的是通过将车辆测速仪固定在杆架、龙门架或者测速箱的方式进行测速，应用于高速公路较多，激光测速仪采用的是激光测距的原理。
优选地，蓄能水电站水轮机故障包括渐变性故障和突发性故障，渐变性故障是由零件磨损导致，突发性故障是部件损坏。
优选地，润滑机构是指水轮机内部部件间的润滑，通过观察水中是否出现润滑油，若出现润滑油说明轴承密封损坏或者是轴承间隙较大。
优选地，轴承间隙是否变大可通过人手动检查。
优选的，水轮机构的检查包括水轮机叶轮是否损坏和缺失。
优选的，外部因素导致故障包括水压稳定性浮动、调速继电器抖动现象、空载频率摆动大。
优选的，水压稳定性浮动会导致对蓄能水电站水轮机叶轮受压浮动，可通过观察水压表进行排查。
优选的，调速继电器抖动现象可通过人工观察进行排查。
优选的，空载频率摆动会导致叶轮与水的接触面发生偏移，导致叶轮旋转阻力变化，进而导致调速故障。
3.有益效果
相比于现有技术，本发明的优点在于：
1)、本蓄能水电站水轮机辅助和调速系统故障诊断定位系统在使用时，工作人员通过辅助和调速系统启动蓄能水电站水轮机，使得其空载运行，通过测速仪检测水轮机的转速，依此来判定水轮机是否故障，从而迅速的判别水轮机是否正常，若测速仪测定水轮机的转速正常则说明该蓄能水电站水轮机正常，可以正常使用，若测定结果与设计不符，则说明该蓄能水电站水轮机出现故障，省时省力，提高了维修人员对设备故障检修效率。
2)、本蓄能水电站水轮机辅助和调速系统故障诊断定位系统在使用时，若该蓄能 水电站水轮机判定为故障，则人工对该蓄能水电站水轮机的润滑机构和水轮机构是否故障，从而实现对该润滑机构故障位置的快速定位，方便维修人员的维修，提高了故障处理的效率，较少了经济损失，避免了人们生活受到影响。
附图说明
图1为本发明的整体流程示意图；
图2为本发明的局部流程示意图；
图3为本发明的局部流程示意图。
具体实施方式
在本发明的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”、“顺时针”、“逆时针”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的设备或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。
在本发明的描述中，“多个”的含义是两个或两个以上，除非另有明确具体的限定。
在本发明的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“设置有”、“套设/接”、“连接”等，应做广义理解，例如“连接”，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本发明中的具体含义。
实施例1：
对于蓄能水电站水轮机辅助和调速系统故障的诊断没有一套完整的系统，导致故障发生的时候工作人员处理故障的效率较低，无法很好的对故障进行判断并且迅速的对故障进行定位，导致故障的处理效率较低，造成不必要的经济损失，甚至是影响人们的生活。
请参阅图1-3，一种蓄能水电站水轮机辅助和调速系统故障诊断定位系统，包括诊断模块和定位模块，诊断模块判定蓄能水电站水轮机辅助和调速系统故障后由定位模块进行定位故障位置；诊断模块通过人工判断蓄能水电站水轮机辅助和调速系统是否正常；定位模块用于甄别蓄能水电站水轮机的润滑机构和水轮机构是否异常，若无异常则判定为外部因素导致故障，通过测速仪检测水轮机的转速，依此来判定水轮机是否故障，从而迅速的判别水轮机是否正常，若测速仪测定水轮机的转速正常则说明该蓄能水电站水轮机正常，可以正常使用，若测定结果与设计不符，则说明该蓄能水电站水轮机出现故障，省时省力，提高了维修人员对设备故障检修效率，测速仪是用来测量车辆的行驶速度的仪器。常用的测速仪有雷达测速仪和激光测速仪两种。其中，雷达测速仪的测速原理为多普勒效应；激光测速仪的测速原理为激光测距，雷达测速仪的主要原理是多普勒效应(Doppler Effect)，即当目标向雷达天线靠近时，反射信号频率将高于发射机频率；反之，当目标远离天线而去时，反射信号频率将低于发射机频率。雷达测速仪发射电磁波，碰触到物体的时候会反射回来。当触碰到的物体有朝向或者背向的位移运动时，测速仪发射与反射回来的电磁波有个频率差，通过这个频率差从而求得物体运动的速度，实现速度测量的目的。现已经广泛用于 警察超速测试等行业。雷达测速仪有固定式和便携式两种，固定式测速仪顾名思义是以位置固定不动的方式进行测量的测速仪器。指的是通过将车辆测速仪固定在杆架、龙门架或者测速箱的方式进行测速，应用于高速公路较多，激光测速仪采用的是激光测距的原理。激光测距(即电磁波，其速度为30万公里/秒)，是通过对被测物体发射激光光束，并接收该激光光束的反射波，记录该时间差，来确定被测物体与测试点的距离。激光测速仪对被测物体进行两次有特定时间间隔的激光测距，取得在该一时段内被测物体的移动距离，从而得到该被测物体的移动速度，有一种名为激光测速取证系统的新型激光测速仪，该系统包括测定车辆速度的激光速度探测器和摄像机。使用时，测速仪对每一辆驶过的车辆进行车速测试，测速仪一旦发现超速行驶车辆，将会自动拍摄违规车辆的图像，记录当时的时间及目标时速。它是一种新型交通管理执法工具，为治理违章超速行驶提供了可靠的技术取证手段。
本发明使用步骤：本蓄能水电站水轮机辅助和调速系统故障诊断定位系统在使用时，首先工作人员通过辅助和调速系统启动蓄能水电站水轮机，使得其空载运行，通过测速仪检测水轮机的转速，依此来判定水轮机是否故障，从而迅速的判别水轮机是否正常，若测速仪测定水轮机的转速正常则说明该蓄能水电站水轮机正常，可以正常使用，若测定结果与设计不符，则说明该蓄能水电站水轮机出现故障，省时省力，提高了维修人员对设备故障检修效率。
作为本发明的进一步方案：诊断模块通过人工启动蓄能水电站水轮机，手动调节蓄能水电站水轮机叶轮转速，之后通过测速仪检测水轮机转速是否异常，从而快速的对该蓄能水电站水轮机进行是否故障进行判定，转速(Rotational Speed或Rev)是做圆周运动的物体单位时间内沿圆周绕圆心转过的圈数(与频率不同)，常见的转速有额定转速和最大转速等，硬盘转速以每分钟多少转来表示，单位表示为RPM，RPM是Revolutions Per minute的缩写，是转/每分钟。RPM值越大，内部传输率就越快，访问时间就越短，硬盘的整体性能也就越好，用符号"n"表示；其国际标准单位为rps(转/秒)或rpm(转/分)，也有表示为RPM(转/分，主要为日本和欧洲采用，我国采用国际标准)。当单位为r/S时，数值上与频率相等，即n＝f＝1/T，T为作圆周运动的周期。圆周上某点对应的线速度为：v＝2π*R*n，R为该点对应的旋转半径。常见的转速有：额定转速和最大转速等。离心机的国际单位是g,转速r/min变为g的公式：RCF＝1.12*10^(-5)*r*(r/min)^2，额定转速额定转速是指额定功率条件下的最大转速，通常出厂时，作为产品的主要参数，标注在产品的明显部位，最大转速，最大转速是在特定条件下，转速所能达到的最大值。如硬盘内电机主轴转速，也就是硬盘盘片在正常工作电压条件下，所能达到的最大转速。转速的快慢是标示硬盘档次的重要参数之一，它是决定硬盘内部传输率的关键因素之一，在很大程度上直接影响到硬盘的速度。硬盘的转速越快，硬盘寻找文件的速度也就越快，相对的硬盘的传输速度也就得到了提高。
作为本发明的进一步方案：蓄能水电站水轮机故障包括渐变性故障和突发性故障，渐变性故障是由零件磨损导致，突发性故障是部件损坏导致。
实施例2：
请参阅图1-3，结合实施例1的基础有所不同之处在于，润滑机构是指水轮机内部部件间的润滑，通过观察水中是否出现润滑油，若出现润滑油说明轴承密封损坏或者是轴承间隙较大，轴承间隙是否变大可通过人手动检查，水轮机构的检查包括水轮机叶轮是否损坏和缺失，外部因素导致故障包括水压稳定性浮动、调速继电器抖动现象、空载频率摆动 大，水压稳定性浮动会导致对蓄能水电站水轮机叶轮受压浮动，可通过观察水压表进行排查，调速继电器抖动现象可通过人工观察进行排查，空载频率摆动会导致叶轮与水的接触面发生偏移，导致叶轮旋转阻力变化，进而导致调速故障。若该蓄能水电站水轮机由实施例1方法判定为故障，则人工对该蓄能水电站水轮机的润滑机构和水轮机构是否故障，从而实现对该润滑机构故障位置的快速定位，方便维修人员的维修，提高了故障处理的效率，较少了经济损失，避免了人们生活受到影响。
本发明使用步骤：本蓄能水电站水轮机辅助和调速系统故障诊断定位系统在使用时，若该蓄能水电站水轮机由实施例1方法判定为故障，则人工对该蓄能水电站水轮机的润滑机构和水轮机构是否故障，从而实现对该润滑机构故障位置的快速定位，方便维修人员的维修，提高了故障处理的效率，较少了经济损失，避免了人们生活受到影响。
以上显示和描述了本发明的基本原理、主要特征和本发明的优点。本行业的技术人员应该了解，本发明不受上述实施例的限制，上述实施例和说明书中描述的仅为本发明的优选例，并不用来限制本发明，在不脱离本发明精神和范围的前提下，本发明还会有各种变化和改进，这些变化和改进都落入要求保护的本发明范围内。本发明要求保护范围由所附的权利要求书及其等效物界定。

Claims (10)

  1. 一种蓄能水电站水轮机辅助和调速系统故障诊断定位系统，其特征在于，包括诊断模块和定位模块，所述诊断模块判定蓄能水电站水轮机辅助和调速系统故障后由定位模块进行定位故障位置；
    所述诊断模块通过人工判断蓄能水电站水轮机辅助和调速系统是否正常；
    所述定位模块用于甄别蓄能水电站水轮机的润滑机构和水轮机构是否异常，若无异常则判定为外部因素导致故障。
  2. 根据权利要求1所述的一种蓄能水电站水轮机辅助和调速系统故障诊断定位系统，其特征在于：所述诊断模块通过人工启动蓄能水电站水轮机，手动调节蓄能水电站水轮机叶轮转速，之后通过测速仪检测水轮机转速是否异常。
  3. 根据权利要求1所述的一种蓄能水电站水轮机辅助和调速系统故障诊断定位系统，其特征在于：蓄能水电站水轮机故障包括渐变性故障和突发性故障，所述渐变性故障是由零件磨损导致，突发性故障是部件损坏。
  4. 根据权利要求1所述的一种蓄能水电站水轮机辅助和调速系统故障诊断定位系统，其特征在于：所述润滑机构是指水轮机内部部件间的润滑，通过观察水中是否出现润滑油，若出现润滑油说明轴承密封损坏或者是轴承间隙较大。
  5. 根据权利要求3所述的一种蓄能水电站水轮机辅助和调速系统故障诊断定位系统，其特征在于：所述轴承间隙是否变大可通过人手动检查。
  6. 根据权利要求1所述的一种蓄能水电站水轮机辅助和调速系统故障诊断定位系统，其特征在于：所述水轮机构的检查包括水轮机叶轮是否损坏和缺失。
  7. 根据权利要求1所述的一种蓄能水电站水轮机辅助和调速系统故障诊断定位系统，其特征在于：所述外部因素导致故障包括水压稳定性浮动、调速继电器抖动现象、空载频率摆动大。
  8. 根据权利要求6所述的一种蓄能水电站水轮机辅助和调速系统故障诊断定位系统，其特征在于：所述水压稳定性浮动会导致对蓄能水电站水轮机叶轮受压浮动，可通过观察水压表进行排查。
  9. 根据权利要求1所述的一种蓄能水电站水轮机辅助和调速系统故障诊断定位系统，其特征在于：所述调速继电器抖动现象可通过人工观察进行排查。
  10. 根据权利要求1所述的一种蓄能水电站水轮机辅助和调速系统故障诊断定位系统，其特征在于：所述空载频率摆动会导致叶轮与水的接触面发生偏移，导致叶轮旋转阻力变化，进而导致调速故障。
PCT/CN2023/136739 2023-03-21 2023-12-06 一种蓄能水电站水轮机辅助和调速系统故障诊断定位系统 WO2024193103A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202310286559.4 2023-03-21
CN202310286559.4A CN116517759A (zh) 2023-03-21 2023-03-21 一种蓄能水电站水轮机辅助和调速系统故障诊断定位系统

Publications (1)

Publication Number Publication Date
WO2024193103A1 true WO2024193103A1 (zh) 2024-09-26

Family

ID=87403686

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2023/136739 WO2024193103A1 (zh) 2023-03-21 2023-12-06 一种蓄能水电站水轮机辅助和调速系统故障诊断定位系统

Country Status (2)

Country Link
CN (1) CN116517759A (zh)
WO (1) WO2024193103A1 (zh)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116517759A (zh) * 2023-03-21 2023-08-01 南方电网调峰调频发电有限公司运行分公司 一种蓄能水电站水轮机辅助和调速系统故障诊断定位系统

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08182393A (ja) * 1994-12-21 1996-07-12 Toshiba Corp 発電機の調速制御方法およびその装置
JPH08240479A (ja) * 1995-03-06 1996-09-17 Tokyo Electric Power Co Inc:The 回転機械の診断装置
DE102004025801A1 (de) * 2004-05-26 2005-12-22 Czarske, Jürgen, Prof.Dr.-Ing.habil Verfahren zur absoluten Formvermessung von rotierenden Objekten
CN206161669U (zh) * 2017-01-06 2017-05-10 重庆市同扬电气设备有限公司 一种监视水轮机转速的转速信号仪
CN106989926A (zh) * 2017-02-22 2017-07-28 贵州北盘江电力股份有限公司董箐发电厂 一种基于规则推导的水电机组故障诊断方法
CN106988951A (zh) * 2017-04-14 2017-07-28 贵州乌江水电开发有限责任公司东风发电厂 水轮机组故障诊断及状态评估方法
CN112196717A (zh) * 2020-08-18 2021-01-08 华电电力科学研究院有限公司 一种水轮机调速器液压系统状态监测与故障诊断方法
CN112363432A (zh) * 2020-11-12 2021-02-12 江西省港航建设投资集团有限公司 一种水电站辅助设备的监测系统及监测方法
CN112610386A (zh) * 2021-02-03 2021-04-06 河北工程大学 水轮机机组故障诊断系统及方法
CN214741802U (zh) * 2021-05-14 2021-11-16 河南郑大水利科技有限公司 一种水电站运行故障诊断系统
CN115145252A (zh) * 2022-09-06 2022-10-04 长江三峡能事达电气股份有限公司 基于故障树的水轮机调速器故障诊断方法、系统及介质
CN116517759A (zh) * 2023-03-21 2023-08-01 南方电网调峰调频发电有限公司运行分公司 一种蓄能水电站水轮机辅助和调速系统故障诊断定位系统

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08182393A (ja) * 1994-12-21 1996-07-12 Toshiba Corp 発電機の調速制御方法およびその装置
JPH08240479A (ja) * 1995-03-06 1996-09-17 Tokyo Electric Power Co Inc:The 回転機械の診断装置
DE102004025801A1 (de) * 2004-05-26 2005-12-22 Czarske, Jürgen, Prof.Dr.-Ing.habil Verfahren zur absoluten Formvermessung von rotierenden Objekten
CN206161669U (zh) * 2017-01-06 2017-05-10 重庆市同扬电气设备有限公司 一种监视水轮机转速的转速信号仪
CN106989926A (zh) * 2017-02-22 2017-07-28 贵州北盘江电力股份有限公司董箐发电厂 一种基于规则推导的水电机组故障诊断方法
CN106988951A (zh) * 2017-04-14 2017-07-28 贵州乌江水电开发有限责任公司东风发电厂 水轮机组故障诊断及状态评估方法
CN112196717A (zh) * 2020-08-18 2021-01-08 华电电力科学研究院有限公司 一种水轮机调速器液压系统状态监测与故障诊断方法
CN112363432A (zh) * 2020-11-12 2021-02-12 江西省港航建设投资集团有限公司 一种水电站辅助设备的监测系统及监测方法
CN112610386A (zh) * 2021-02-03 2021-04-06 河北工程大学 水轮机机组故障诊断系统及方法
CN214741802U (zh) * 2021-05-14 2021-11-16 河南郑大水利科技有限公司 一种水电站运行故障诊断系统
CN115145252A (zh) * 2022-09-06 2022-10-04 长江三峡能事达电气股份有限公司 基于故障树的水轮机调速器故障诊断方法、系统及介质
CN116517759A (zh) * 2023-03-21 2023-08-01 南方电网调峰调频发电有限公司运行分公司 一种蓄能水电站水轮机辅助和调速系统故障诊断定位系统

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
CHENG, YUANCHU; ZHANG, JIANGBIN: "Fault Analysis of Water Turbine Regulation System", AUTOMATIC TURBINE REGULATION, 28 February 2010 (2010-02-28), pages 307 - 310 *

Also Published As

Publication number Publication date
CN116517759A (zh) 2023-08-01

Similar Documents

Publication Publication Date Title
Wilkinson et al. Condition monitoring of generators & other subassemblies in wind turbine drive trains
WO2024193103A1 (zh) 一种蓄能水电站水轮机辅助和调速系统故障诊断定位系统
CN109297716B (zh) 一种双馈型风力发电机振动故障诊断方法
Artigao et al. In-service wind turbine DFIG diagnosis using current signature analysis
CN104019000A (zh) 风力发电机组的载荷谱测定与前瞻性维护系统
CN103926506A (zh) 基于构建函数的汽轮发电机转子绕组短路故障诊断方法
CN105569931B (zh) 一种风力发电机传动链故障诊断方法
CN104515677A (zh) 风电机组叶片故障诊断与状态监控系统
CN110425154A (zh) 一种水泵在线能效和状态监测及故障预测的方法及其装置
CN103940611A (zh) 一种风电机组变工况下滚动轴承自适应异常检测方法
CN103925155A (zh) 一种风电机组输出功率异常的自适应检测方法
CN102418661A (zh) 一种风力发电机偏航系统故障诊断方法
CN104378033B (zh) 一种开关磁阻电机风力发电系统最大功率点跟踪方法
CN107728063B (zh) 一种直驱式永磁风力发电机组变流器开路故障诊断方法
WO2023142372A1 (zh) 一种针对风力发电机的检测方法和相关装置
CN103792463A (zh) 基于虚功率原理的汽轮发电机转子绕组短路故障诊断方法
CN111044277A (zh) 一种泵站机组的故障诊断系统及方法
US20120313374A1 (en) Electric generator for a wind turbine, wind turbine and method of driving a wind turbine
US9146100B2 (en) Wind turbine condition monitoring method
CN117213551A (zh) 一种调相机安全预警及状态评估系统
JP2019120219A (ja) 風車ブレードの落雷判定システム及び方法
CN111288884A (zh) 一种基于密闭环境下的叶尖间隙测量装置及方法
CN106715892B (zh) 旋转机器以及包括所述机器的用于转换能量的装置
CN107762727B (zh) 风电机组紧急顺桨的控制方法及控制系统
CN115435874A (zh) 一种涡轮流量计故障诊断方法、诊断系统及涡轮流量计