Power grid dispatching operation risk warning and panoramic evaluation method

Abstract

The invention discloses a power grid dispatching operation risk alarm and panorama evaluation method, which comprises the following steps of: S1, processing power grid dispatching operation effective information data by applying a decision tree theory, dividing alarm information categories, and establishing an index system of power grid dispatching operation risk alarm panorama evaluation at the same time, the power grid dispatching operation risk is identified and graded according to the index changing system; and S2, evaluating a power grid dispatching operation alarm panorama based on a radar map method, displaying a power grid operation state through a multi-dimensional index, realizing risk alarm tracking, and dynamically monitoring and controlling power grid dispatching. According to the method, automatic optimization and learning are carried out through periodically updated data, and an algorithm model is enhanced, so that alarm information is intelligently processed, important alarm information is extracted so as to be conveniently processed by a dispatcher, the burden of the dispatcher is reduced, and major power grid dispatching accidents are avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of power grid system, and particularly relates to a power grid dispatching operation risk alarm and panoramic evaluation method. BACKGROUND

[0002] With the development of industry, the demand for electricity of the country is getting larger and larger, so the construction of power grid is constantly advancing, and the scale of the automatic system of power grid dispatching is expanding. In order to avoid problems in the dispatching of power grid, leading to the failure of the power system, the information of power grid is broadcasted. However, the development of power grid makes the amount of information access increase exponentially, and the amount of alarm data generated by the system daily also increases sharply.

[0003] When the existing automatic monitoring system alarm client is used, the alarm constellations are constantly brushed, and these alarm information is displayed according to time sequence. A large amount of information is brushed on the alarm page, so that the staff cannot quickly find the relatively important warning information, the loss of information increases the possibility of failure of the power grid, which is not conducive to the dispatching operation of the power grid. At the same time, the existing power grid dispatching system also lacks intelligent processing of alarm information, and cannot automatically optimize and learn according to data, leading to excessive burden of dispatch personnel and prone to mistakes.

[0004] Based on the problems existing in the dispatching operation of the existing power grid, the present application proposes a power grid dispatching operation risk alarm and panoramic evaluation method. SUMMARY

[0005] The purpose of the present application is to solve the problems existing in the prior art, and to propose a power grid dispatching operation risk alarm and panoramic evaluation method.

[0006] In order to achieve the above purpose, the present application adopts the following technical scheme: A power grid dispatching operation risk alarm and panoramic evaluation method, comprising the following steps: S1, applying the decision tree theory, processing the effective information data of power grid dispatching operation, classifying the alarm information, establishing an index system of power grid dispatching operation risk alarm panoramic evaluation, and completing the identification and grading of power grid dispatching operation risk according to the index system; S2, evaluating the alarm panorama of power grid dispatching operation based on the radar chart method, and displaying the power grid operation state through multi-dimensional indexes, realizing the tracking of risk alarm, and dynamically monitoring and controlling the dispatching of power grid, regularly updating risk evolution data, and comprehensively evaluating the multi-dimensional indexes and risk evolution data to provide intuitive reference for dispatching decision; S3, according to the obtained data, the reinforcement learning algorithm is established to train the large model, and the automatic optimization and learning are carried out through the regularly updated data, the intelligent alarm technology is completed, the intelligent alarm of the power grid dispatching operation risk is realized, the burden of dispatchers is reduced through accurate reasoning, and the practicality level is improved; S4, the whole process of data analysis and early warning report is effectively managed, and the data analysis and early warning report are evaluated, so that timely and effective measurement and evaluation are carried out, and a foundation is laid for subsequent procedures; S5, alarm is carried out through voice broadcast, online alarm report is generated, and paper record is made.

[0007] Preferably, according to the index system of power grid dispatching operation risk alarm panoramic evaluation, potential risk sources are found through power grid operation data analysis and equipment state monitoring, and the risk level is divided into four levels: first level, extremely serious, second level, major, third level, relatively large and fourth level, general; The first risk: the system risk that may cause the provincial power grid to reduce the load by more than 16%; The second risk: the major risk that causes the regional power grid to reduce the load by 10%-15%; The third risk: the relatively large risk that causes the urban power grid to reduce the load by 7%-10%; The fourth risk: the general risk that affects the power generation enterprise or power user; The data of risk grading include the indexes of power grid load reduction ratio, power outage user ratio and influence degree on power grid stable operation.

[0008] Preferably, in the process of dynamic monitoring and control, the risk is informed by combining network, written notice and on-site explanation, so as to avoid that the risk alarm is not known by the power grid workers, resulting in safety accidents, and for the power grid dispatching operation risk above the second level, the control scheme needs to be reported to the local energy supervision agency at the same time, so as to prevent serious problems.

[0009] Preferably, in the process of application of decision tree theory, the weight of each evaluation index should be determined, so as to realize effective classification of alarm information and avoid disorderly alarm information and loss of part of information.

[0010] Preferably, the voice alarm includes sound alarm and voice synthesis alarm: sound alarm, that is, alarm classification or priority is distinguished through alarm bell sound; Voice synthesis alarm, that is, alarm is carried out through synthesized ai voice.

[0011] Preferably, the complete power grid dispatching operation panoramic evaluation index system should follow the principles of systematicness, scientificity and comparability, and include the following core index categories: Technical performance index: power system stability (static / transient / dynamic); Information security protection ability; Equipment reliability (failure rate, mean time between failures); System redundancy; Economic operation indicators: power generation completion rate; frequency regulation accuracy (primary / secondary frequency coordination); resource utilization efficiency; operation cost control; Service quality indicators: power supply reliability; voltage qualification rate; fault recovery time; customer satisfaction; The weight distribution usually adopts the Delphi method combined with AHP (analytic hierarchy process), the relative importance of each indicator is determined through expert scoring and mathematical calculation, and then the comprehensive evaluation value is obtained through linear weighting and accumulation.

[0012] Compared with the prior art, the beneficial effects of the present application are: through automatic optimization and learning with regularly updated data, the algorithm model is strengthened, thereby intelligently processing the alarm information, extracting important alarm information, so as to facilitate the dispatch personnel to process it, reduce the burden of the dispatch personnel, avoid major power grid dispatching accidents, and at the same time, the intelligent model can conveniently classify and process the alarm information for the dispatch personnel, avoid information screen flashing, and cause partial information loss. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 A schematic block diagram of a power grid dispatching operation risk alarm and panoramic evaluation method is proposed. DETAILED DESCRIPTION

[0014] REFERENCE Figure 1 A power grid dispatching operation risk alarm and panoramic evaluation method, comprising the following steps: S1, applying the decision tree theory, processing the effective information data of the power grid dispatching operation, classifying the alarm information, at the same time, establishing an index system of the power grid dispatching operation risk alarm panoramic evaluation, and completing the identification and grading of the power grid dispatching operation risk according to the index system; S2, based on the radar chart method, evaluating the power grid dispatching operation alarm panorama, and through multi-dimensional indicators, displaying the power grid operation state, realizing the tracking of the risk alarm, at the same time, dynamically monitoring and controlling the dispatch of the power grid, regularly updating the risk evolution data, and comprehensively evaluating the multi-dimensional indicators and the risk evolution data, providing intuitive reference for the dispatch decision; S3, according to the obtained data, establishing a reinforcement learning algorithm training large model, and through automatic optimization and learning with regularly updated data, completing intelligent alarm technology, thereby realizing intelligent alarm of the power grid dispatching operation risk, through accurate reasoning, to reduce the burden of the dispatch personnel, and improve the practicality level; S4, effectively managing the whole process of data analysis and early warning report, at the same time, evaluating and assessing the data analysis and early warning report, thereby timely and effectively measuring and evaluating, laying a foundation for subsequent program development; S5, alarming through voice broadcast, at the same time, generating an online alarm report, and recording it in paper form; According to the index system of power grid dispatching operation risk warning panoramic evaluation, potential risk sources are found through power grid operation data analysis and equipment state monitoring. The risk level is divided into four levels: first level, extremely serious; second level, serious; third level, relatively large; and fourth level, general. First level risk: system risk that may cause provincial power grid to reduce load by more than 16%; second level risk: major risk that causes regional power grid to reduce load by 10%-15%; third level risk: relatively large risk that causes urban power grid to reduce load by 7%-10%; fourth level risk: general risk that affects power generation enterprises or power users. The risk grading data includes power grid load reduction ratio, power outage user ratio, and the degree of influence on power grid stable operation; In the dynamic monitoring and control process, the network adopts the combination of simultaneous, written notification and on-site explanation to inform the risk, so as to avoid the risk warning from being unknown to the power grid workers, leading to safety accidents. Moreover, for power grid dispatching operation risks above the second level, the control scheme needs to be reported to the local energy supervision agency at the same time to prevent serious problems. In the application process of decision tree theory, the weight of each evaluation index should be determined to realize effective classification of warning information and avoid the loss of part of the information due to the disorder of warning information. Voice alarm includes sound alarm and voice synthesis alarm: sound alarm refers to distinguishing alarm classification or priority through alarm bell sound; voice synthesis alarm refers to alarm through synthesized AI voice. A complete power grid dispatching operation panoramic evaluation index system should follow the principles of systematicness, scientificity, and comparability, and include the following core index categories: Technical performance index: power system stability (static, transient, and dynamic); information security protection capability; equipment reliability (failure rate, mean time between failures); system redundancy; Economic operation index: power generation capacity completion rate; frequency regulation accuracy (primary / secondary frequency regulation coordination); resource utilization efficiency; operation cost control; Service quality index: power supply reliability; voltage qualification rate; fault recovery time; customer satisfaction; The weight distribution usually adopts Delphi method combined with AHP (analytic hierarchy process), determines the relative importance of each index through expert scoring and mathematical calculation, and then obtains the comprehensive evaluation value through linear weighting accumulation.

[0015] In the present application, firstly, the decision tree theory is applied to process the effective information data of power grid dispatching operation, classify the alarm information, and establish an index system for panoramic evaluation of power grid dispatching operation risk alarm, and according to the index system, the identification and grading of power grid dispatching operation risk are completed. The complete panoramic evaluation index system of power grid dispatching operation should follow the principles of systematicness, scientificity and comparability, and includes the following core index categories: technical performance index: power system stability (static / transient / dynamic), information security protection capability, equipment reliability (failure rate, mean time between failures), system redundancy; economic operation index: power generation completion rate, frequency regulation accuracy (primary / secondary frequency coordination), resource utilization efficiency, operation cost control; service quality index: power supply reliability, voltage qualification rate, fault recovery time, customer satisfaction; the weight distribution usually adopts Delphi method combined with AHP (analytic hierarchy process), and the relative importance of each index is determined through expert scoring and mathematical calculation, and then the comprehensive evaluation value is obtained through linear weighted accumulation; according to the index system of power grid dispatching operation risk alarm panoramic evaluation, potential risk sources are found through power grid operation data analysis and equipment state monitoring, and the risk level is divided into four levels: first level, extremely serious, second level, serious, third level, relatively large and fourth level, general; first level risk: systemic risk that may cause provincial power grid to reduce load by more than 16%; second level risk: major risk that causes regional power grid to reduce load by 10%-15%; third level risk: relatively large risk that causes urban power grid to reduce load by 7%-10%; fourth level risk: general risk affecting power generation enterprises or power users; the risk grading data includes power grid load reduction ratio, power outage user ratio and influence degree index on power grid stable operation; Then, the radar chart method is used to evaluate the power grid dispatching operation alarm panorama, and the power grid operation state is displayed through multi-dimensional indexes, the tracking of risk alarm is realized, and the dynamic monitoring and control of power grid dispatching are realized, the risk evolution data is updated regularly, the multi-dimensional indexes and risk evolution data are comprehensively evaluated, and the intuitive reference for dispatching decision is provided; in the process of dynamic monitoring and control, the network is used at the same time, the written notice and on-site explanation are combined, and the risk notification is realized, so that the risk alarm is not known by the power grid workers, and the safety accident is avoided, and for the power grid dispatching operation risk above the second level, the control scheme needs to be reported to the local energy supervision agency at the same time, so as to prevent serious problems; According to the obtained data, a reinforcement learning algorithm is established to train a large model, and the data is automatically optimized and learned through regular updating, and the intelligent alarm technology is completed, so as to realize the intelligent alarm of power grid dispatching operation risk, reduce the burden of dispatching personnel through accurate reasoning, and improve the practical level; Second, the whole process of data analysis and early warning report is effectively managed, and the data analysis and early warning report is evaluated and assessed, so as to timely and effectively measure and evaluate, and lay a foundation for subsequent program development; Finally, the alarm is given through voice broadcast, and an online alarm report is generated and recorded in a paper file. The voice alarm includes sound alarm and voice synthesis alarm. The sound alarm is to distinguish alarm classification or priority through the alarm bell sound. The voice synthesis alarm is to alarm through synthesized AI voice.

Claims

1. A method for power grid dispatching and operation risk alarm and panoramic assessment, characterized in that, Includes the following steps: S1. Apply decision tree theory to process effective information data of power grid dispatching and operation, classify alarm information categories, establish an indicator system for panoramic assessment of power grid dispatching and operation risk alarms, and complete the identification and classification of power grid dispatching and operation risks based on the indicator system. S2. Based on the radar chart method, the overall situation of power grid dispatching and alarm is evaluated, and the power grid operation status is displayed through multi-dimensional indicators to realize the tracking of risk alarms. At the same time, the dispatching of the power grid is dynamically monitored and controlled, the risk evolution data is updated regularly, and the results of the comprehensive evaluation of multi-dimensional indicators and risk evolution data are used to provide intuitive reference for dispatching decisions. S3. Based on the obtained data, establish a reinforcement learning algorithm to train a large model, and automatically optimize and learn through regularly updated data to complete the intelligent alarm technology, thereby realizing intelligent alarm of power grid dispatching operation risks. Through accurate reasoning, the burden on dispatching personnel can be reduced and the level of practicality can be improved. S4. Effectively manage the entire process of data analysis and early warning reporting, and evaluate and assess the data analysis and early warning reports to conduct timely and effective measurement and evaluation, laying the foundation for subsequent procedures; S5. Issue alarms via voice broadcast, generate online alarm reports, and record them in paper form.

2. The method for power grid dispatching operation risk alarm and panoramic assessment according to claim 1, characterized in that, Based on the indicator system of the panoramic assessment of power grid dispatching and operation risk alarms, potential risk sources are identified through power grid operation data analysis and equipment status monitoring. The risk levels are divided into four levels: Level 1 (particularly serious), Level 2 (serious), Level 3 (relatively serious), and Level 4 (general). Level 1 risk: systemic risk that may lead to a reduction in load of more than 16% in the provincial power grid; Level 2 risk: serious risk that may lead to a reduction in load of 10%-15% in the regional power grid. Level 3 Risk: A significant risk of reducing the urban power grid load by 7%-10%; Level 4 risk: A general risk affecting power generation companies or electricity users; The data for risk classification include indicators such as the proportion of power grid load reduction, the proportion of users experiencing power outages, and the degree of impact on the stable operation of the power grid.

3. The method for power grid dispatching operation risk alarm and panoramic assessment according to claim 1, characterized in that, During dynamic monitoring and control, risk notification is conducted through a combination of online notification, written notification, and on-site explanation to prevent risk warnings from going unnoticed by power grid staff and potentially leading to safety accidents. Furthermore, for risks in the dispatch and operation of power grids at or above the secondary level, control plans must be reported to the local energy regulatory agency simultaneously to prevent serious problems from arising.

4. The method for power grid dispatching operation risk alarm and panoramic assessment according to claim 1, characterized in that, In the application of decision tree theory, the weights of each evaluation indicator should be determined to achieve effective classification of alarm information and avoid the loss of some information due to the disorder of alarm information.

5. The method for power grid dispatching operation risk alarm and panoramic assessment according to claim 1, characterized in that, Voice alarms include audible alarms and synthesized voice alarms: audible alarms distinguish alarm categories or priorities through alarm sounds; synthesized voice alarms use synthesized AI voice to issue alarms.

6. The method for power grid dispatching operation risk alarm and panoramic assessment according to claim 1, characterized in that, A complete evaluation index system for the overall operation of power grid dispatch should adhere to the principles of systematicness, scientific rigor, and comparability, and include the following core index categories: Technical performance indicators: power system stability (static / transient / dynamic); information security protection capabilities; equipment reliability (failure rate, mean time between failures); system redundancy; Economic operating indicators: power generation completion rate; frequency regulation accuracy (primary / secondary frequency regulation coordination); resource utilization efficiency; operating cost control; Service quality indicators: power supply reliability; voltage qualification rate; fault recovery time; customer satisfaction; Weighting is typically achieved using the Delphi method combined with AHP (Analog-Hybrid Hierarchy Process). The relative importance of each indicator is determined through expert scoring and mathematical calculations, and then a comprehensive evaluation value is obtained through linear weighted summation.

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