Working risk early warning method and device for electric power field

Abstract

The invention provides an operation risk early warning method and device for an electric power field. The method comprises the following steps: acquiring man-machine management data of the electric power field; establishing an evaluation index system of the electric power field operation risk; evaluating the man-machine loop management data according to the evaluation index system to obtain risk factors of the power field operation, and performing quantitative evaluation on the risk factors; formulating risk evaluation indexes based on quantitative evaluation results of the risk factors; and according to the risk evaluation index, carrying out early warning on the operation risk of the electric power field. The method can be suitable for safety risk evaluation of new energy station electric power field operation, based on multiple dimensions, an electric power field operation risk evaluation index system is established, risk source data reliability is determined through data driving, a risk factor evaluation model is carried out, risk factor levels are set, and the risk evaluation efficiency is improved. Data-driven electric power field operation risk early warning is realized, and an early warning result is more reasonable.

Description

Technical Field

[0001] The present invention relates to the technical field of power field operations, and in particular to a method and device for early warning of power field operation risks. Background Art

[0002] With the advancement of technology and the application of digital means, the scope and effect of safety management have been greatly improved. The state and relevant departments have also actively introduced a series of policies to support the development of digital safety management of new energy sites. In order to achieve the goals of the national dual carbon plan, my country's new energy installations will usher in a blowout development, but the existing technology has the following problems in the safety management of new energy:

[0003] ① Due to the non-intensiveness of land and wind resources, wind and solar power sites are diverse and widespread. In addition, the vigorous promotion of rooftop distributed photovoltaics has resulted in a large number of wind and solar power sites (distributed roofs), making safety management difficult and costly, and making it impossible to conduct all-round safety supervision; ② Surrounding environmental factors such as climate conditions and natural disasters have a direct impact on the safety of the sites; ③ The existing real-time monitoring and early warning alarm devices for environmental parameters at power sites have obvious deficiencies, such as inconvenience in carrying, missed reports, high false alarm rates, and insufficient stability. Summary of the invention

[0004] The purpose of the present invention is to provide a method and device for early warning of operational risks at an electric power site, which is used to solve the problems of difficulty, high cost, and weak real-time early warning capability in safety management of electric power sites in the prior art, and can improve the real-time monitoring, early warning and response capabilities of electric power sites, and effectively reduce safety risks and safety management costs.

[0005] In order to achieve the above objectives, in a first aspect, the present invention provides an operation risk early warning method for a power site, comprising:

[0006] Step 1: Obtain human-machine-environmental management data at the power site;

[0007] Human-machine-environmental-management data include the qualifications and capabilities of operators, the status of power equipment, the status of operating tools requested by operators, the operating environment of the power site, the operating hours of operators, and the management data of the power site;

[0008] Step 2: Establish an evaluation index system for power field operation risks;

[0009] The evaluation index system includes the evaluation of the qualifications and capabilities of the operators, the evaluation of the status of the power equipment, the evaluation of the status of the operating tools applied by the operators, the evaluation of the operating environment of the power site, the evaluation of the operating time of the operators, and the evaluation of the management data of the power site;

[0010] Step 3: Evaluate the human-machine-environmental management data according to the evaluation index system, obtain the risk factors of power field operations, and conduct quantitative evaluation of the risk factors;

[0011] Step 4: Based on the quantitative evaluation results of risk factors, formulate risk assessment indicators;

[0012] Step 5: Issue early warnings for operational risks at power sites based on risk assessment indicators.

[0013] According to a method for early warning of operational risks at a power site provided by the present invention, the status of the power equipment includes the appearance status and functional status of the power equipment, the operating environment of the power site includes the ambient temperature, ambient humidity and electromagnetic interference conditions of the power site, and the management data of the power site includes the division of the operating area and the operating steps of the operating personnel.

[0014] According to a method for early warning of power operation risks at a power site provided by the present invention, the qualifications and capabilities of operating personnel are evaluated, including: evaluating whether the operating personnel have corresponding power operation qualification certificates, whether they have undergone regular skills training and safety training, and evaluating the operating personnel's actual operating ability, emergency handling ability, teamwork ability and safety awareness.

[0015] According to a method for early warning of operational risks at a power site provided by the present invention, the status of power equipment is evaluated, including whether the power equipment has undergone regular inspection, maintenance and calibration; the status of operating tools requested by operators is evaluated, including whether the operating tools meet safety standards, whether there is damage or wear, and the use and maintenance of the operating tools.

[0016] According to a method for early warning of operational risks at a power site provided by the present invention, the operating environment of the power site is evaluated, including: evaluating whether there are flammable, explosive, or toxic hazardous sources at the work site, evaluating whether the ventilation, lighting, temperature, and humidity at the work site are appropriate, and evaluating whether sufficient safety warning signs and anti-electromagnetic interference protection measures are set up at the work site; evaluating the operating time of operating personnel, including: evaluating whether the operating time is reasonable.

[0017] According to a method for early warning of operational risks at a power site provided by the present invention, management data of the power site is evaluated, including: evaluating whether the operational process is standardized and reasonable and complies with safety operating procedures, evaluating whether effective safety protection measures and emergency response measures are taken during the operation, evaluating whether sufficient safety education and risk notification are conducted before the operation, evaluating whether safety operating procedures and operational requirements are strictly implemented during the operation, and evaluating whether a comprehensive safety inspection and quality acceptance are conducted after the operation is completed.

[0018] According to a method for early warning of operational risks at a power site provided by the present invention, risk factors are quantitatively evaluated, including: using qualitative evaluation to quantify the impact of each risk factor, and deriving an evaluation value for each risk factor according to a preset evaluation standard, and then dividing each risk factor into different levels according to the evaluation value.

[0019] According to a method for early warning of operation risks at a power site provided by the present invention, risk assessment indicators include the level of risk factors, the degree of impact and the probability of occurrence.

[0020] According to a method for early warning of operation risks at a power site provided by the present invention, early warning of operation risks at the power site is provided, including: paying close attention to the operation risks at the power site and taking corresponding risk control measures, regularly evaluating the operation risks at the power site and taking corresponding risk mitigation measures, and performing routine monitoring and management of the operation risks at the power site.

[0021] In a second aspect, the present invention further provides an operation risk early warning device for a power site, comprising:

[0022] An acquisition unit is used to acquire human-machine-environmental management data at the power site; the human-machine-environmental management data includes the qualifications and capabilities of the operators, the status of the power equipment, the status of the operating tools applied for by the operators, the operating environment of the power site, the operating time of the operators, and the management data of the power site;

[0023] Establish a unit for establishing an evaluation index system for power site operation risks; the evaluation index system includes evaluation of the qualifications and capabilities of operators, evaluation of the status of power equipment, evaluation of the status of operating tools applied for by operators, evaluation of the power site operating environment, evaluation of the operating time of operators, and evaluation of the management data of the power site;

[0024] An evaluation unit is used to evaluate the human-machine-environmental management data according to the evaluation index system, obtain the risk factors of power field operations, and conduct quantitative evaluation of the risk factors;

[0025] The formulation unit is used to formulate risk assessment indicators based on the quantitative evaluation results of risk factors;

[0026] The early warning unit is used to issue early warnings for operational risks at power sites based on risk assessment indicators.

[0027] The technical solution of the present invention has at least the following technical effects:

[0028] The present invention provides a method and device for early warning of operation risks at a power site, the method comprising: obtaining human-machine-environmental management data at the power site; establishing an evaluation index system for operation risks at the power site; evaluating the human-machine-environmental management data according to the evaluation index system, obtaining risk factors for power site operations, and quantitatively evaluating the risk factors; formulating risk evaluation indicators based on the quantitative evaluation results of risk factors; and early warning of operation risks at the power site according to the risk evaluation indicators. The present invention can be applied to the safety risk assessment of power site operations at new energy stations, and establishes an index system for risk assessment of power site operations based on multiple dimensions, uses data-driven determination of the reliability of risk source data and conducts a risk factor evaluation model, sets risk factor levels, and implements data-driven early warning of power site operation risks, making the results of early warning more reasonable. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0030] In the attached picture:

[0031] Figure 1 The present invention is a flow chart of the method for early warning of operation risks at a power site. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] Some embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0034] See also Figure 1 The embodiment of the present invention provides a method for early warning of operation risks at a power site, comprising:

[0035] Step 1: Obtain human-machine-environmental management data at the power site;

[0036] Specifically, human-machine environment management data includes the following four aspects:

[0037] “People”: qualifications and capabilities of operators, etc.; image data;

[0038] "Machine": The status of the power equipment, including whether the power equipment is damaged or not, the service life of the power equipment and the time of the last maintenance, so as to determine whether the power equipment has exceeded the maintenance period, to determine the functional status of the power equipment; and the status of the operating tools requested by the operating personnel, etc.; it is text data.

[0039] “Environment”: operating environment such as ambient temperature, ambient humidity, and electromagnetic interference at the power site, as well as the operating hours of operators (to avoid operators working under unfavorable conditions such as fatigue or at night), etc.; numerical data;

[0040] “Management”: management data of the power site, including the division of the operating area (to facilitate the subsequent evaluation of whether the operating area meets the requirements), the operating procedures of the operating personnel (to facilitate the subsequent evaluation of whether the operating personnel have fully performed the on-site operations in accordance with the operating procedures recorded on the management platform), etc.; it is image data.

[0041] Specifically, the human-machine environment management data can be obtained from the management platform and the monitoring cameras at the power site. In some embodiments, after obtaining the human-machine environment management data, the human-machine environment management data can be pre-processed, including steps such as data cleaning, deduplication, conversion and integration, so as to reduce noise and redundant information in the human-machine environment management data, improve the quality and effectiveness of the human-machine environment management data, and ensure that the obtained human-machine environment management data is the data ultimately required.

[0042] Step 2: Establish an evaluation index system for power field operation risks;

[0043] In some embodiments, an evaluation index system for power field operation risks is established based on the intrinsic safety requirements of human-machine-environmental-management data, specifically including the following four aspects:

[0044] “People”: Evaluate the qualifications and capabilities of operating personnel, including: whether the operating personnel have the corresponding power operation qualification certificates, whether they have undergone regular skills training and safety training, and evaluate the operating personnel’s actual operating ability, emergency handling ability, teamwork ability and safety awareness.

[0045] "Machine": Evaluate the status of power equipment, including: whether the power equipment has undergone regular inspection, maintenance and calibration, so as to determine the performance, reliability and safety of the power equipment; evaluate the status of the work tools requested by the operators, including: whether the work tools meet safety standards, whether there is damage or wear, and evaluate the use and maintenance of the work tools.

[0046] "Environment": Evaluate the working environment of the power site and the working hours of the operators, including: ① Working environment: Evaluate whether there are flammable, explosive, toxic and other dangerous sources at the work site, evaluate whether the environmental factors such as ventilation, lighting, temperature, humidity and other environmental factors at the work site are suitable, and evaluate whether the work site has sufficient safety warning signs and anti-electromagnetic interference and other protective measures. ② Working hours: Evaluate whether the working hours are reasonable, avoid working under unfavorable conditions such as fatigue or at night, and consider the impact of natural factors such as season and weather on work safety.

[0047] "Management": Evaluate the management data of the power site, including: ① Operation method: Evaluate whether the operation process is standardized and reasonable, whether it complies with the safety operation procedures, and whether effective safety protection measures and emergency response measures are taken during the operation. ② Operation requirements: Evaluate whether sufficient safety education and risk notification are carried out before the operation, whether the safety operation procedures and operation requirements are strictly implemented during the operation, and whether a comprehensive safety inspection and quality acceptance are carried out after the operation is completed.

[0048] It should be noted that the present invention establishes an evaluation index system for power site operation risks from multiple dimensions such as personnel qualifications, personnel capabilities, operating methods, operating requirements, power equipment and operating tools, power equipment status, operating environment and operating time. By comprehensively evaluating the risks in these four aspects, the safety status of power site operations can be comprehensively and objectively reflected.

[0049] Step 3: Evaluate the human-machine-environmental management data according to the evaluation index system, obtain the risk factors of power field operations, and conduct quantitative evaluation of the risk factors;

[0050] Among them, the quantitative evaluation of risk factors includes: using qualitative evaluation to quantify the impact of each risk factor, and deriving the evaluation value of each risk factor according to the preset evaluation criteria, and then dividing each risk factor into different levels according to the evaluation value.

[0051] By adopting qualitative evaluation to quantify the impact of each risk factor, the risk impact is described using a three-level evaluation method (high, medium, and low), that is, each risk factor is divided into three levels: high, medium, and low. The three-level evaluation method can be used to identify and manage existing risks.

[0052] Since risk factors are generally qualitative indicators and cannot be directly quantified, for qualitative indicators, the expert scoring method is used to determine the evaluation value of qualitative indicators. Invite multiple experts in related fields, inform the experts of the evaluation objects and evaluation criteria, and the experts will quantify the qualitative indicators based on their own experience, and then use the cloud model to reflect the concentration of the expert scores. If the cloud droplet distribution is scattered, it will be fed back to the experts for correction until the cloud droplet distribution is relatively concentrated and stable. Take the average score corresponding to the cloud map as the evaluation value of the qualitative indicator, that is, the evaluation value of each risk factor is obtained.

[0053] The following is a specific method for quantitatively evaluating risk factors. The fuzzy relationship matrix method is used to determine the membership of each risk factor to each level subset, and the preset evaluation criteria can be formulated through the aforementioned expert scoring method, thereby determining whether the risk factor meets the preset evaluation criteria. The fuzzy relationship matrix method is an existing technology and is briefly described below, specifically including:

[0054] Establishing the fuzzy relationship matrix, membership is the most basic and important concept in fuzzy comprehensive evaluation. ij It refers to the multiple evaluation factors on a certain evaluation object in u i Aspects of making v j Assume that the membership vector R i =(r i1 , ..., r im ), i=1,2..., Determine the membership of the evaluation object to each level subset obtained from a single indicator. When constructing the membership function, refer to some typical membership functions, such as trapezoidal distribution, normal distribution, triangular distribution, etc. Commonly used trapezoidal distribution functions include left semi-trapezoidal distribution, right semi-trapezoidal distribution and trapezoidal distribution. The formula is as follows:

[0055]

[0056] Among them, a, b, c, and d are parameters, and a <b<c<d。

[0057] x t ——Indicator evaluation value in time period t.

[0058] The formula of the fuzzy relationship matrix obtained by integrating the evaluation membership of multiple evaluation factors is as follows:

[0059]

[0060] In the formula, r tnm It represents the membership degree of the mth evaluation factor in the tnth time period.

[0061] Step 4: Based on the quantitative evaluation results of risk factors, formulate risk assessment indicators;

[0062] Step 5: Issue early warnings for operational risks at power sites based on risk assessment indicators.

[0063] Specifically, based on the quantitative evaluation results of risk factors, risk assessment indicators are formulated, such as the impact of risk factors, the probability of occurrence, etc. These risk assessment indicators can help better understand and compare the priority and importance of different risk factors. According to the different levels of risk factors, such as high risk, medium risk and low risk. The classification of risk factor levels should be based on the actual risk impact and probability of occurrence. For different levels of risk, corresponding early warning management measures need to be taken. For high-risk factors, it is necessary to pay close attention and take corresponding risk control measures; for medium-risk factors, it is necessary to regularly evaluate and take corresponding risk mitigation measures; for low-risk factors, regular monitoring and management can be carried out. In short, risk assessment indicators include the level, impact and probability of occurrence of risk factors. Early warning of the operation risks at the power site includes: paying close attention to the operation risks at the power site and taking corresponding risk control measures, regularly evaluating the operation risks at the power site and taking corresponding risk mitigation measures, and carrying out regular monitoring and management of the operation risks at the power site.

[0064] The present invention analyzes and integrates the operation process and the on-site operation environment of power field operations, identifies potential risks and major sources of danger, forms a knowledge map for risk source management in the operation process, and establishes a risk prevention mechanism. Risk assessment of power field operations is achieved to ensure that power field operations can play an early warning role in terms of "people, machines, environment, and management". The operation risk early warning method provided by the present invention is to identify power field operations such as qualification levels, operation areas, operation steps, and operation behaviors, analyze and discover unsafe behaviors, unsafe states, or unsafe procedures, and issue early warnings or actively terminate their occurrence.

[0065] Based on the same inventive concept, another embodiment of the present invention provides an operation risk warning device for a power site, which corresponds to the method of the above embodiment, and includes:

[0066] An acquisition unit is used to acquire human-machine-environmental management data at the power site; the human-machine-environmental management data includes the qualifications and capabilities of the operators, the status of the power equipment, the status of the operating tools applied for by the operators, the operating environment of the power site, the operating time of the operators, and the management data of the power site;

[0067] Establish a unit for establishing an evaluation index system for power site operation risks; the evaluation index system includes evaluation of the qualifications and capabilities of operators, evaluation of the status of power equipment, evaluation of the status of operating tools applied for by operators, evaluation of the power site operating environment, evaluation of the operating time of operators, and evaluation of the management data of the power site;

[0068] An evaluation unit is used to evaluate the human-machine-environmental management data according to the evaluation index system, obtain the risk factors of power field operations, and conduct quantitative evaluation of the risk factors;

[0069] The formulation unit is used to formulate risk assessment indicators based on the quantitative evaluation results of risk factors;

[0070] The early warning unit is used to issue early warnings for operational risks at power sites based on risk assessment indicators.

[0071] In summary, in the early warning scheme for the risk of power field operation in the prior art, various risk factors of new energy sites, such as equipment failure, weather changes, human operation errors, etc., have not been fully considered, resulting in some risks being ignored; there may also be problems of inaccurate risk assessment, and there are deviations in assessing the possibility and impact of risks, resulting in inaccurate early warning results, and unable to provide effective guidance for field operations; the transmission of early warning information only relies on limited communication means, such as telephone, text messages, etc., which cannot cover all field operators, affecting the early warning effect. The present invention provides an early warning method and device for operation risk at a power site, which can be applied to the safety risk assessment of power field operations at new energy sites. Based on the inherent safety requirements of "people, machines, environment, and management", an index system for evaluating the risk assessment of power field operations is established from multiple dimensions such as personnel qualifications, personnel capabilities, operation methods, operation requirements, operation tools, power equipment status, operation environment, and operation time. The reliability of risk source data is determined by data-driven and a risk factor evaluation model is performed, and the risk factor level is set to achieve data-driven early warning of power field operations, so that the results of the early warning are more reasonable.

[0072] Those skilled in the art will readily appreciate other embodiments of the present invention after considering the specification and practicing the embodiments disclosed herein. The present invention is intended to cover any variations, uses or adaptations of the present invention that follow the general principles of the present invention and include common knowledge or customary techniques in the art that are not disclosed by the present invention. It should be understood that the present invention is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

Claims

1. A method for early warning of operation risks at a power site, characterized in that: include: Step 1: Obtain human-machine-environmental management data at the power site; The human-machine-environmental-management data include the qualifications and capabilities of the operators, the status of the power equipment, the status of the operating tools applied for by the operators, the operating environment of the power site, the operating time of the operators, and the management data of the power site; Step 2: Establish an evaluation index system for power field operation risks; The evaluation index system includes evaluating the qualifications and capabilities of operators, evaluating the status of power equipment, evaluating the status of operating tools applied by operators, evaluating the operating environment of the power site, evaluating the operating time of operators, and evaluating the management data of the power site; Step 3: Evaluate the human-machine-environmental management data according to the evaluation index system to obtain risk factors for power field operations, and perform quantitative evaluation on the risk factors; Step 4: Formulate risk assessment indicators based on the quantitative assessment results of the risk factors; Step 5: Based on the risk assessment indicators, early warning is issued for the operational risks at the power site.

2. The method for early warning of operation risks at a power site according to claim 1, characterized in that: The status of the power equipment includes the appearance and functional status of the power equipment, the working environment of the power site includes the ambient temperature, ambient humidity and electromagnetic interference of the power site, and the management data of the power site includes the division of the working area and the working steps of the operating personnel.

3. The method for early warning of operation risks at a power site according to claim 1, characterized in that: The evaluation of the qualifications and capabilities of the operating personnel includes: evaluating whether the operating personnel have the corresponding power operation qualification certificates, whether they have undergone regular skills training and safety training, and evaluating the operating personnel's actual operating ability, emergency handling ability, teamwork ability and safety awareness.

4. The method for early warning of operation risks at a power site according to claim 2, characterized in that: The evaluation of the status of the power equipment includes: whether the power equipment has undergone regular inspection, maintenance and calibration; the evaluation of the status of the work tools applied for by the operators includes: evaluating whether the work tools meet safety standards, whether there is damage or wear, and evaluating the use and maintenance of the work tools.

5. The method for early warning of operation risks at a power site according to claim 2, characterized in that: The evaluation of the working environment at the power site includes: evaluating whether there are flammable, explosive, and toxic hazards at the work site, evaluating whether the ventilation, lighting, temperature, and humidity at the work site are appropriate, and evaluating whether sufficient safety warning signs and anti-electromagnetic interference protection measures are set up at the work site; the evaluation of the working hours of the operators includes: evaluating whether the working hours are reasonable.

6. The method for early warning of operation risks at a power site according to claim 2, characterized in that: The evaluation of the management data of the power site includes: evaluating whether the operation process is standardized and reasonable and complies with the safety operating procedures, evaluating whether effective safety protection measures and emergency response measures are taken during the operation, evaluating whether sufficient safety education and risk notification are conducted before the operation, evaluating whether the safety operating procedures and operation requirements are strictly implemented during the operation, and evaluating whether a comprehensive safety inspection and quality acceptance are carried out after the operation is completed.

7. The method for early warning of operation risks at a power site according to claim 1, characterized in that: The quantitative evaluation of the risk factors includes: quantifying the impact of each risk factor by qualitative evaluation, obtaining an evaluation value of each risk factor according to a preset evaluation standard, and then dividing each risk factor into different levels according to the evaluation value.

8. The method for early warning of operation risks at a power site according to claim 7, characterized in that: The risk assessment indicators include the level of risk factors, the degree of impact and the probability of occurrence.

9. The method for early warning of operation risks at a power site according to claim 8, characterized in that: The aforementioned early warning of the operational risks at the power site includes: paying close attention to the operational risks at the power site and taking corresponding risk control measures, regularly evaluating the operational risks at the power site and taking corresponding risk mitigation measures, and conducting regular monitoring and management of the operational risks at the power site.

10. An operation risk warning device for a power site, characterized in that: include: An acquisition unit, used to acquire human-machine-environmental-management data at the power site; The human-machine-environmental-management data include the qualifications and capabilities of the operators, the status of the power equipment, the status of the operating tools applied for by the operators, the operating environment of the power site, the operating time of the operators, and the management data of the power site; Establishing a unit for establishing an evaluation index system for power site operation risks; the evaluation index system includes evaluating the qualifications and capabilities of operators, evaluating the status of power equipment, evaluating the status of operating tools applied for by operators, evaluating the operating environment of the power site, evaluating the operating time of operators, and evaluating the management data of the power site; An evaluation unit, used to evaluate the human-machine-environmental-management data according to the evaluation index system, obtain risk factors of power field operations, and perform quantitative evaluation on the risk factors; A formulation unit, used to formulate risk assessment indicators based on the quantitative assessment results of the risk factors; The early warning unit is used to warn of the operation risks at the power site according to the risk assessment index.

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