CN114575942B - Steam turbine operation and maintenance auxiliary system based on multidimensional decision diagram - Google Patents
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D21/00—Shutting-down of machines or engines, e.g. in emergency; Regulating, controlling, or safety means not otherwise provided for
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
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Abstract
Description
技术领域Technical field
本发明属于汽轮机技术领域，尤其涉及一种基于多维决策图的汽轮机运维辅助系统。The invention belongs to the technical field of steam turbines, and in particular relates to a steam turbine operation and maintenance assistance system based on a multi-dimensional decision diagram.
背景技术Background technique
由于汽轮机部件或总体的健康状态涉及到材料、气动热力、结构、控制传感测量以及概率统计等诸多学科，至今仍有许多理论和实际问题难以解决，使得汽轮机健康管理依然处于起步探索阶段。Since the health status of steam turbine components or the overall state involves many disciplines such as materials, aerodynamics, structure, control sensing measurement, and probability statistics, there are still many theoretical and practical problems that are difficult to solve, so steam turbine health management is still in its infancy and exploration stage.
目前的汽轮机的运行维护基本上是依靠例行巡检完成，或者专家通过汽轮机实际运行数据进行，当设备出现故障时依靠专家经验进行维护检修等。目前还没有一种专门且全面的汽轮机运行维护系统，现有的运行维护方法基本上是针对某一情况进行运检测的，不仅不能及时全面的实现汽轮机的运行维护，而且存在效率低的问题。The current operation and maintenance of steam turbines are basically completed by routine inspections, or by experts based on the actual operation data of the steam turbine. When equipment fails, expert experience is relied upon to perform maintenance and repairs. At present, there is no specialized and comprehensive steam turbine operation and maintenance system. The existing operation and maintenance methods are basically based on operation detection for a certain situation. Not only can they not realize the operation and maintenance of steam turbines in a timely and comprehensive manner, but they also have low efficiency problems.
发明内容Contents of the invention
本发明实施例的目的在于提供一种基于多维决策图的汽轮机运维辅助系统，旨在解决上述背景技术中提出的问题。The purpose of the embodiments of the present invention is to provide a steam turbine operation and maintenance assistance system based on a multi-dimensional decision diagram, aiming to solve the problems raised in the above background technology.
为实现上述目的，本发明提供如下技术方案：In order to achieve the above objects, the present invention provides the following technical solutions:
一种基于多维决策图的汽轮机运维辅助系统，包括混合现实交互终端和汽轮机运维辅助决策系统，所述混合现实交互终端与汽轮机运维辅助决策系统配合，用于以混合现实显示的方式对汽轮机运行参数进行展示，并用于在操作过程中进行辅助决策支持；A steam turbine operation and maintenance auxiliary system based on a multi-dimensional decision diagram, including a mixed reality interactive terminal and a steam turbine operation and maintenance auxiliary decision-making system. The mixed reality interactive terminal cooperates with the steam turbine operation and maintenance auxiliary decision-making system to use a mixed reality display to Steam turbine operating parameters are displayed and used to assist decision-making support during operation;
所述汽轮机运维辅助决策系统包括：The steam turbine operation and maintenance auxiliary decision-making system includes:
展示模块，所述展示模块平行运行并根据视觉信息完成汽轮机结构、汽轮机测点位置及数据展示；A display module, which runs in parallel and completes the turbine structure, turbine measuring point location and data display based on visual information;
运行状态分析与预测模块，所述运行状态分析与预测模块基于多维决策图对汽轮机的运行状态进行分析及预测；An operating state analysis and prediction module, which analyzes and predicts the operating state of the steam turbine based on a multi-dimensional decision diagram;
故障分析模块，所述故障分析模块用于分析故障原因；A fault analysis module, which is used to analyze the cause of the fault;
指导模块，所述指导模块用于对汽轮机运行操作进行指导。Guidance module, the guidance module is used to guide the operation of the steam turbine.
进一步的，所述汽轮机运维辅助决策系统的构建，具体实现步骤为：Further, the specific implementation steps for constructing the steam turbine operation and maintenance auxiliary decision-making system are:
S1.采集现场汽轮机运行监视数据，将汽轮机结构、监视测点安装位置和测点实际数据通过三维混合现实的模式交互显示，并以历史数据的形式保存；S1. Collect on-site steam turbine operation monitoring data, interactively display the steam turbine structure, monitoring and measuring point installation positions and actual measuring point data through a three-dimensional mixed reality mode, and save it in the form of historical data;
S2.将汽轮机运行数据输入运行状态分析与预测模块，获得汽轮机运行状态参数及预测未来一段时间变化趋势，并以三维混合现实的模式交互显示。S2. Input the steam turbine operating data into the operating state analysis and prediction module, obtain the steam turbine operating state parameters and predict the change trend in the future, and interactively display it in a three-dimensional mixed reality mode.
进一步的，所述运行状态分析与预测模块的具体实现步骤为：Further, the specific implementation steps of the operating status analysis and prediction module are:
S11.离线学习：根据历史数据在多维空间中的分布，将不同参数组合成不同的状态空间，建立不同空间的状态模型，并记录；S11. Offline learning: Based on the distribution of historical data in multi-dimensional space, combine different parameters into different state spaces, establish state models of different spaces, and record;
S12.在线预测：根据实际采集的数据，判断其隶属的状态空间，输入对应的状态向量模型，获得状态向量；S12. Online prediction: Based on the actual collected data, determine the state space it belongs to, input the corresponding state vector model, and obtain the state vector;
S13.在线校正：当预测的状态变量和实际状态变量偏差超过阈值时，在线校正标志位置“1”，系统进入在线校正模式，从历史数据中搜寻与待校正状态相近的足量数据，重新建立其状态向量模型，同时更新旧模型。S13. Online correction: When the deviation between the predicted state variable and the actual state variable exceeds the threshold, the online correction flag is set to "1", and the system enters the online correction mode, searches for sufficient data similar to the state to be corrected from historical data, and re-establishes its state vector model, while updating the old model.
进一步的，所述故障分析模块通过三维混合现实模式重演故障现象，并用于给出故障原因及事故发生的预防建议。Furthermore, the fault analysis module replays the fault phenomenon through a three-dimensional mixed reality mode and is used to give fault causes and accident prevention suggestions.
进一步的，还包括三维模块，所述三维模块用于支持汽轮机运维辅助决策系统，所述三维模块采用三维建模软件建立设备结构、数据测量传感器、运维工具及设备运行环境的三维模型。Furthermore, it also includes a three-dimensional module, which is used to support the steam turbine operation and maintenance auxiliary decision-making system. The three-dimensional module uses three-dimensional modeling software to establish a three-dimensional model of the equipment structure, data measurement sensors, operation and maintenance tools, and equipment operating environment.
进一步的，所述混合现实交互终端包括头戴式设备、体感设备、视频设备和语音设备。Further, the mixed reality interactive terminal includes a head-mounted device, a somatosensory device, a video device and a voice device.
进一步的，还包括评价量化模块，所述评价量化模块用于输出汽轮机运行状态的实时评价结果数据。Furthermore, it also includes an evaluation and quantification module, which is used to output real-time evaluation result data of the steam turbine operating status.
进一步的，还包括数据采集处理模块，所述数据采集处理模块以数据模型搭建。Furthermore, it also includes a data collection and processing module, which is built with a data model.
与现有技术相比，本发明的有益效果是：Compared with the prior art, the beneficial effects of the present invention are:
该基于多维决策图的汽轮机运维辅助系统，将虚拟信息和真实视相相结合，交互地展示汽轮机设备运行信息，并设置运行状态分析及预测模块对汽轮机设备运行状态进行监视及预测，故障原因分析模块对汽轮机设备进行故障原因分析，能够及时全面的实现汽轮机的运行维护，提高了汽轮机设备的运行效率。This steam turbine operation and maintenance assistance system based on multi-dimensional decision diagrams combines virtual information with real vision to interactively display steam turbine equipment operating information, and sets up an operating status analysis and prediction module to monitor and predict the operating status of steam turbine equipment and fault causes. The analysis module analyzes the cause of failure of steam turbine equipment, can implement timely and comprehensive operation and maintenance of steam turbine equipment, and improves the operating efficiency of steam turbine equipment.
附图说明Description of the drawings
图1为基于多维决策图的汽轮机运维辅助系统的结构示意图。Figure 1 is a schematic structural diagram of a steam turbine operation and maintenance assistance system based on a multi-dimensional decision diagram.
图2为基于多维决策图的汽轮机运维辅助系统中的多维决策图。Figure 2 shows the multi-dimensional decision diagram in the steam turbine operation and maintenance assistance system based on the multi-dimensional decision diagram.
具体实施方式Detailed ways
为了使本发明的目的、技术方案及优点更加清楚明白，以下结合附图及实施例，对本发明进行进一步详细说明。应当理解，此处所描述的具体实施例仅仅用以解释本发明，并不用于限定本发明。In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention and are not intended to limit the present invention.
以下结合具体实施例对本发明的具体实现进行详细描述。The specific implementation of the present invention will be described in detail below with reference to specific embodiments.
本发明一个实施例提供的一种基于多维决策图的汽轮机运维辅助系统，包括混合现实交互终端和汽轮机运维辅助决策系统，所述混合现实交互终端与汽轮机运维辅助决策系统配合，用于以混合现实显示的方式对汽轮机运行参数进行展示，并用于在操作过程中进行辅助决策支持；An embodiment of the present invention provides a steam turbine operation and maintenance auxiliary system based on a multi-dimensional decision diagram, including a mixed reality interactive terminal and a steam turbine operation and maintenance auxiliary decision-making system. The mixed reality interactive terminal cooperates with the steam turbine operation and maintenance auxiliary decision-making system for The steam turbine operating parameters are displayed in a mixed reality display and used for auxiliary decision support during operation;
所述汽轮机运维辅助决策系统包括：The steam turbine operation and maintenance auxiliary decision-making system includes:
展示模块，所述展示模块平行运行并根据视觉信息完成汽轮机结构、汽轮机测点位置及数据展示；A display module, which runs in parallel and completes the turbine structure, turbine measuring point location and data display based on visual information;
运行状态分析与预测模块，所述运行状态分析与预测模块基于多维决策图对汽轮机的运行状态进行分析及预测；An operating state analysis and prediction module, which analyzes and predicts the operating state of the steam turbine based on a multi-dimensional decision diagram;
故障分析模块，所述故障分析模块用于分析故障原因；A fault analysis module, which is used to analyze the cause of the fault;
指导模块，所述指导模块用于对汽轮机运行操作进行指导。Guidance module, the guidance module is used to guide the operation of the steam turbine.
在本发明实施例中，本发明将虚拟信息和真实视相相结合，交互地展示汽轮机设备运行信息，并设置运行状态分析及预测模块对汽轮机设备运行状态进行监视及预测，故障原因分析模块对汽轮机设备进行故障原因分析，提高了汽轮机设备的运行效率。In the embodiment of the present invention, the present invention combines virtual information with real vision to interactively display the operation information of the steam turbine equipment, and sets up the operation status analysis and prediction module to monitor and predict the operation status of the steam turbine equipment, and the fault cause analysis module Analysis of fault causes of steam turbine equipment improves the operating efficiency of steam turbine equipment.
作为本发明的一种优选实施例，所述汽轮机运维辅助决策系统的构建，具体实现步骤为：As a preferred embodiment of the present invention, the specific implementation steps for constructing the steam turbine operation and maintenance auxiliary decision-making system are:
S1.采集现场汽轮机运行监视数据，将汽轮机结构、监视测点安装位置和测点实际数据通过三维混合现实的模式交互显示，并以历史数据的形式保存；S1. Collect on-site steam turbine operation monitoring data, interactively display the steam turbine structure, monitoring and measuring point installation positions and actual measuring point data through a three-dimensional mixed reality mode, and save it in the form of historical data;
S2.将汽轮机运行数据输入运行状态分析与预测模块，获得汽轮机运行状态参数及预测未来一段时间变化趋势，并以三维混合现实的模式交互显示。S2. Input the steam turbine operating data into the operating status analysis and prediction module, obtain the steam turbine operating status parameters and predict the change trend in the future, and interactively display it in a three-dimensional mixed reality mode.
在本发明实施例中，优选的，状态分析与预测模块基于基于多维决策图对汽轮机设备运行状态进行监视及预测。In the embodiment of the present invention, preferably, the state analysis and prediction module monitors and predicts the operating state of the steam turbine equipment based on a multi-dimensional decision diagram.
作为本发明的一种优选实施例，所述运行状态分析与预测模块的具体实现步骤为：As a preferred embodiment of the present invention, the specific implementation steps of the operating status analysis and prediction module are:
S11.离线学习：根据历史数据在多维空间中的分布，将不同参数组合成不同的状态空间，建立不同空间的状态模型，并记录；S11. Offline learning: Based on the distribution of historical data in multi-dimensional space, combine different parameters into different state spaces, establish state models of different spaces, and record;
S12.在线预测：根据实际采集的数据，判断其隶属的状态空间，输入对应的状态向量模型，获得状态向量；S12. Online prediction: Based on the actual collected data, determine the state space it belongs to, input the corresponding state vector model, and obtain the state vector;
S13.在线校正：当预测的状态变量和实际状态变量偏差超过阈值时，在线校正标志位置“1”，系统进入在线校正模式，从历史数据中搜寻与待校正状态相近的足量数据，重新建立其状态向量模型，同时更新旧模型。S13. Online correction: When the deviation between the predicted state variable and the actual state variable exceeds the threshold, the online correction flag is set to "1", and the system enters the online correction mode, searches for sufficient data similar to the state to be corrected from historical data, and re-establishes its state vector model, while updating the old model.
在本发明实施例中，当预测的状态变量和实际状态变量偏差超过阈值或者人为判定预测状态偏差较大时，在线校正标志位置“1”，系统进入在线校正模式；影响汽轮机运行状态的最重要影响因素是汽轮机机的进汽参数，包括汽轮机的进汽流量、温度、压力，以上三个参数分别作为XYZ坐标轴，根据历史数据构建汽轮机运行状态空间；状态向量＝fx(流量，温度，压力)。In the embodiment of the present invention, when the deviation between the predicted state variable and the actual state variable exceeds the threshold or the deviation of the predicted state is artificially determined to be large, the online correction flag is set to "1" and the system enters the online correction mode; the most important factors affecting the operating state of the steam turbine The influencing factors are the inlet steam parameters of the steam turbine, including the inlet steam flow, temperature, and pressure of the steam turbine. The above three parameters are used as XYZ coordinate axes respectively, and the steam turbine operating state space is constructed based on historical data; state vector = f x (flow, temperature, pressure).
作为本发明的一种优选实施例，所述故障分析模块通过三维混合现实模式重演故障现象，并用于给出故障原因及事故发生的预防建议。As a preferred embodiment of the present invention, the fault analysis module replays the fault phenomenon through a three-dimensional mixed reality mode and is used to give fault causes and accident prevention suggestions.
在本发明实施例中，优选的，通过检修工况点判断模块根据用户采集信息自动判别检修工况点，同时利用信息可视化模块实现特征信息模型可视化；将设备操作规程文字性的描述转换为三维混合现实交互提示，提供操作数据变化及操作步骤指导性建议。In the embodiment of the present invention, preferably, the maintenance working point determination module automatically determines the maintenance working point according to the information collected by the user, and at the same time, the information visualization module is used to realize the visualization of the characteristic information model; the textual description of the equipment operating procedures is converted into a three-dimensional Mixed reality interactive prompts provide guidance on changes in operating data and operating steps.
作为本发明的一种优选实施例，还包括三维模块，所述三维模块用于支持汽轮机运维辅助决策系统，所述三维模块采用三维建模软件建立设备结构、数据测量传感器、运维工具及设备运行环境的三维模型。As a preferred embodiment of the present invention, it also includes a three-dimensional module. The three-dimensional module is used to support the steam turbine operation and maintenance auxiliary decision-making system. The three-dimensional module uses three-dimensional modeling software to establish equipment structure, data measurement sensors, operation and maintenance tools, and A three-dimensional model of the equipment operating environment.
在本发明实施例中，优选的，在交互时，调取混合现实设备内存储的检修模型数据；获取体感、视频、语音数据；以虚拟影像输出运行现场的运维辅助决策数据。In the embodiment of the present invention, preferably, during interaction, the maintenance model data stored in the mixed reality device is retrieved; somatosensory, video, and voice data are obtained; and operation and maintenance auxiliary decision-making data of the operating site is output as a virtual image.
作为本发明的一种优选实施例，所述混合现实交互终端包括头戴式设备、体感设备、视频设备和语音设备。As a preferred embodiment of the present invention, the mixed reality interactive terminal includes a head-mounted device, a somatosensory device, a video device and a voice device.
在本发明实施例中，优选的，通过头戴式设备、体感设备、视频设备和语音设备四种混合现实交互终端的设置，便于用户使用。In the embodiment of the present invention, it is preferred that four mixed reality interactive terminals, namely a head-mounted device, a somatosensory device, a video device and a voice device, are configured to facilitate user use.
作为本发明的一种优选实施例，还包括评价量化模块，所述评价量化模块用于输出汽轮机运行状态的实时评价结果数据。As a preferred embodiment of the present invention, it also includes an evaluation and quantification module, which is used to output real-time evaluation result data of the turbine operating status.
在本发明实施例中，优选的，设备运行全过程的运行状态实时评价结果数据通过评价量化模块输出。In the embodiment of the present invention, preferably, the real-time evaluation result data of the operating status of the entire operation process of the equipment is output through the evaluation quantification module.
作为本发明的一种优选实施例，还包括数据采集处理模块，所述数据采集处理模块以数据模型搭建。As a preferred embodiment of the present invention, it also includes a data collection and processing module, which is built with a data model.
在本发明实施例中，优选的，所述数据采集处理模块存储汽轮机运维辅助系统中测量传感器数据、外部环境特征数据、可视化信息数据和操作指导数据，以及用户信息和权限数据。In the embodiment of the present invention, preferably, the data collection and processing module stores measurement sensor data, external environment characteristic data, visual information data and operation guidance data in the steam turbine operation and maintenance auxiliary system, as well as user information and authority data.
本发明的工作原理是：The working principle of the present invention is:
该基于多维决策图的汽轮机运维辅助系统，将虚拟信息和真实视相相结合，交互地展示汽轮机设备运行信息，并设置运行状态分析及预测模块对汽轮机设备运行状态进行监视及预测，故障原因分析模块对汽轮机设备进行故障原因分析，提高了汽轮机设备的运行效率。This steam turbine operation and maintenance assistance system based on multi-dimensional decision diagrams combines virtual information with real vision to interactively display steam turbine equipment operating information, and sets up an operating status analysis and prediction module to monitor and predict the operating status of steam turbine equipment and fault causes. The analysis module analyzes the cause of failure of steam turbine equipment and improves the operating efficiency of steam turbine equipment.
以上仅是本发明的优选实施方式，应当指出，对于本领域的技术人员来说，在不脱离本发明构思的前提下，还可以作出若干变形和改进，这些也应该视为本发明的保护范围，这些均不会影响本发明实施的效果和专利的实用性。The above are only the preferred embodiments of the present invention. It should be pointed out that those skilled in the art can also make several modifications and improvements without departing from the concept of the present invention, and these should also be regarded as the protection scope of the present invention. , none of these will affect the effect of the present invention and the practicality of the patent.
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