Power system health evaluation method and device based on multivariate information

Abstract

The invention relates to the technical field of power system safety operation, and particularly provides a power system health evaluation method and device based on multivariate information, and the method comprises the steps: obtaining the index value of each last-stage evaluation index of a to-be-evaluated regional power system in a data health degree comprehensive evaluation system; and based on the index value of each final-stage evaluation index and the weight of each final-stage evaluation index, determining a data health degree comprehensive evaluation value of the to-be-evaluated regional power system, wherein the data health degree comprehensive evaluation value of the to-be-evaluated regional power system is a power system health evaluation result of the to-be-evaluated regional power system. According to the technical scheme provided by the invention, the health degree index evaluation system is constructed based on the data of the single equipment and the regional integrated equipment, multi-dimensional and comprehensive calculation evaluation is performed on the health degree of the power grid data, efficient and high-quality data integration is realized, and solid and stable data support is provided for subsequent problem equipment management and control.

Description

Technical Field

[0001] The present invention relates to the technical field of safe operation of power systems, and in particular to a method and device for evaluating the health of a power system based on multivariate information. Background Art

[0002] With the development of energy internet and the continuous advancement of digital reform, the power market has put forward higher requirements for the efficient and high-quality operation of intelligent distribution network systems. As an important component of the power grid, the operation of power equipment can better reflect the overall stability and security of the power grid system.

[0003] Therefore, the concept of human health is applied to power equipment. Based on the massive big data of "source, network, load, and storage", an equipment health evaluation system is constructed based on multi-dimensional information, and various evaluation indicators are integrated and quantified to monitor the overall operation of the system more intuitively and conveniently. Multi-indicators are dimensionlessly processed to build a comprehensive data health evaluation system. The subsequent regular calculation of health indicators will help to grasp the overall operation status of the distribution network system, and realize self-monitoring and self-diagnosis of specific equipment problems, which is of great significance for evaluating the sustainable development of the distribution network in the future.

[0004] Equipment health mainly involves comprehensive model evaluation of the key features of the evaluation object. The mainstream classification is divided into two categories: internal factors (equipment characteristics) such as: operating years, power supply quality, equipment level, power supply capacity, etc. External factors (distribution network operation level and special events): distribution transformer outages caused by external environmental factors, equipment operation level (load rate), grid safety level (insulation rate), etc. However, since there are no clear specifications for existing data health evaluation indicators, the evaluation system or model used, and the indicators involved are not the same, a more standardized and systematic evaluation method has not been constructed. Furthermore, at this stage, a large number of evaluation methods for equipment health remain at the theoretical research level, and many subjective decision factors are still added to the actual application of the power grid management and execution layers, and the equipment health indicators do not have a standardized calculation cycle, so that the overall theoretically calculated health indicators have a low degree of confidence. Summary of the invention

[0005] In order to overcome the above-mentioned defects, the present invention proposes a method and device for evaluating the health of a power system based on multivariate information.

[0006] In a first aspect, a method for evaluating the health of a power system based on multivariate information is provided, the method comprising: Obtain the index values ​​of each final evaluation index of the power system in the area to be evaluated in the comprehensive evaluation system of data health; Based on the index values ​​of the final-level evaluation indicators and the weights of the final-level evaluation indicators, a comprehensive evaluation value of the data health of the power system in the area to be evaluated is determined, and the comprehensive evaluation value of the data health of the power system in the area to be evaluated is a power system health evaluation result of the power system in the area to be evaluated.

[0007] Preferably, the data health comprehensive evaluation system is a five-level evaluation system, the first-level indicator is the data health comprehensive evaluation value, and the second-level indicators include: power supply indicator, power grid indicator, user indicator, and energy storage indicator; The three-level indicators corresponding to the power supply indicators include: power supply three-level indicators; The three-level indicators corresponding to the power grid indicators include: substation indicators, transmission line indicators, distribution line indicators, and distribution transformer indicators; The three-level indicators corresponding to the user indicators include: high-voltage user indicators and business expansion user indicators; The three-level indicators corresponding to the energy storage index include: energy storage level 3 indicators; The four-level indicators corresponding to the three-level indicators of power supply include: power plant file accuracy, unit file accuracy, grid-connected line file accuracy, power plant file completeness, power plant data Figure 1 Consistency, power plant measurement availability, power plant relationship penetration rate, and power plant indicator authenticity; The four-level indicators corresponding to the substation indicators include: substation file accuracy, transformer file accuracy, substation file completeness, substation number Figure 1 consistency, substation measurement availability, substation relationship penetration rate, substation equipment project correlation rate, substation indicator authenticity, transformer indicator authenticity; The four-level indicators corresponding to the transmission line indicators include: transmission line file accuracy, number of transmission lines Figure 1 consistency, transmission line measurement availability, transmission line equipment project correlation rate, transmission line relationship penetration rate, and transmission line indicator authenticity; The four-level indicators corresponding to the distribution line indicators include: distribution line file accuracy, distribution line number Figure 1 Consistency, distribution line measurement availability, distribution line equipment project correlation rate, distribution line relationship penetration rate, distribution line indicator authenticity; The four-level indicators corresponding to the distribution transformer indicators include: distribution transformer file accuracy, distribution transformer number Figure 1 Consistency, distribution transformer measurement availability, distribution transformer equipment project correlation rate, distribution transformer relationship penetration rate, distribution transformer indicator authenticity; The four-level indicators corresponding to the high-voltage user indicators include: high-voltage user file accuracy, high-voltage user number Figure 1 Consistency, high-voltage user measurement availability, and high-voltage user relationship penetration rate; The four-level indicators corresponding to the business expansion user indicators include: business expansion user profile accuracy; The four-level indicators corresponding to the three-level energy storage indicators include: new energy storage power station file accuracy, grid-connected line file accuracy, new energy storage power station data Figure 1 Consistency, measurement availability of new energy storage power stations, and authenticity of indicators of new energy storage power stations; The five-level indicators corresponding to the accuracy of the power plant archives include: the standardization rate of power plant archives, the rationality rate of power plant archives; The five-level indicators corresponding to the unit file accuracy include: unit file standardization rate, converter file standardization rate, fan file standardization rate, and unit file rationality rate; The five-level indicators corresponding to the accuracy of the grid-connected line files include: grid-connected line file standardization rate, grid-connected line file rationality rate; The five-level indicators corresponding to the completeness of the power plant documents include: completeness of power plant documents; The number of power plants Figure 1 The five-level indicators corresponding to consistency include: number of power plants Figure 1 consistency; The five-level indicators corresponding to the power plant measurement availability include: power generation output measurement point configuration rate, power generation output data availability rate, online output measurement point configuration rate, online output data availability rate; The five-level indicators corresponding to the power plant relationship penetration rate include: power plant power consistency rate; The five-level indicators corresponding to the authenticity of the power plant indicators include: visibility of power plant indicators; The five-level indicators corresponding to the substation archive accuracy include: substation archive standardization rate, substation archive rationality rate; The five-level indicators corresponding to the transformer file accuracy include: transformer file standardization rate, transformer file rationality rate; The five-level indicators corresponding to the completeness of the substation documents include: completeness of substation documents; The number of substations Figure 1 The five-level indicators corresponding to consistency include: number of substations Figure 1 consistency; The five-level indicators corresponding to the substation measurement availability include: substation measurement point configuration rate, substation active power availability rate, and substation reactive power availability rate; The five-level indicators corresponding to the substation relationship penetration rate include: substation load consistency rate, substation power consistency rate, and substation interval consistency rate; The five-level indicators corresponding to the substation equipment project association rate include: substation equipment project association rate; The five-level indicators corresponding to the authenticity of the substation indicators include: visibility of substation indicators and rationality of substation indicators; The five-level indicators corresponding to the authenticity of the transformer indicators include: transformer indicator visibility, transformer indicator rationality; The five-level indicators corresponding to the accuracy of the transmission line archives include: transmission line archive standardization rate, transmission line archive rationality rate; The number of transmission lines Figure 1 The five-level indicators corresponding to consistency include: number of transmission lines Figure 1 consistency; The five-level indicators corresponding to the transmission line measurement availability include: transmission line measurement point configuration rate, transmission line active power availability rate, transmission line reactive power availability rate; The five-level indicators corresponding to the power transmission line equipment project correlation rate include: power transmission line equipment project correlation rate; The five-level indicators corresponding to the transmission line relationship penetration rate include: transmission line load consistency rate, transmission line power consistency rate; The five-level indicators corresponding to the authenticity of the transmission line indicators include: visibility of transmission line indicators, rationality of transmission line indicators; The five-level indicators corresponding to the accuracy of the distribution line archives include: the standardization rate of distribution line archives, the rationality rate of distribution line archives; The number of distribution lines Figure 1 The five-level indicators corresponding to consistency include: number of distribution lines Figure 1 consistency; The five-level indicators corresponding to the distribution line measurement availability include: distribution line measurement point configuration rate, distribution line active power availability rate, and distribution line reactive power availability rate; The five-level indicators corresponding to the distribution line equipment project correlation rate include: distribution line equipment project correlation rate; The five-level indicators corresponding to the distribution line relationship penetration rate include: distribution line load consistency rate, distribution line power consistency rate; The five-level indicators corresponding to the authenticity of the distribution line indicators include: visibility of distribution line indicators, rationality of distribution line indicators; The five-level indicators corresponding to the accuracy of the distribution transformer files include: the standardization rate of distribution transformer files, the rationality rate of distribution transformer files; The number of distribution transformers Figure 1 The five-level indicators corresponding to the consistency include: the number of distribution transformers Figure 1 consistency; The five-level indicators corresponding to the distribution transformer measurement availability include: distribution transformer measurement point configuration rate, distribution transformer active power availability rate, distribution transformer reactive power availability rate, and distribution transformer voltage availability rate; The five-level indicators corresponding to the distribution transformer equipment project correlation rate include: distribution transformer equipment project correlation rate; The five-level indicators corresponding to the distribution transformer relationship penetration rate include: distribution transformer power consistency rate; The five-level indicators corresponding to the authenticity of the distribution transformer indicators include: visibility of distribution transformer indicators, rationality of distribution transformer indicators; The five-level indicators corresponding to the accuracy of the high-voltage user files include: the standardization rate of high-voltage user files, the rationality rate of high-voltage user files; The number of high voltage users Figure 1 The five-level indicators corresponding to consistency include: the number of high-voltage users Figure 1 consistency; The five-level indicators corresponding to the high-voltage user measurement availability include: high-voltage user metering point configuration rate, high-voltage user active power availability rate; The five-level indicators corresponding to the high-voltage user relationship penetration rate include: user-device relationship completeness rate, high-voltage user power consistency rate; The five-level indicators corresponding to the accuracy of the business expansion user files include: business expansion user file standardization rate, business expansion user file rationality rate; The five-level indicators corresponding to the accuracy of the new energy storage power station archives include: the standardization rate of the new energy storage power station archives, the rationality rate of the new energy storage power station archives; The five-level indicators corresponding to the accuracy of the grid-connected line files include: grid-connected line file standardization rate, grid-connected line file rationality rate; The number of new energy storage power stations Figure 1 The five-level indicators corresponding to consistency include: the number of new energy storage power stations Figure 1 consistency; The five-level indicators corresponding to the measurement availability of the new energy storage power station include: new energy storage power station measurement point configuration rate, new energy storage power station active power availability rate, new energy storage grid-connected line measurement availability rate, new energy storage grid-connected line active availability rate; The five-level indicators corresponding to the authenticity of the new energy storage power station indicators include: authenticity of the new energy storage power station indicators.

[0008] Furthermore, the calculation formula for the accuracy of the archives of the research object in the comprehensive evaluation system of data health is as follows: In the above formula, The accuracy of the files of the research object, The archival standardization of the research object, is the archive standardization weight of the research object, The rationality of the archives of the research object, The rationality weight of the archives of the research object.

[0009] Furthermore, the calculation formula of the file standardization of the research object is as follows: The calculation formula of the file rationality of the research object is as follows: In the above formula, A is the number of fields whose attributes of the research object's files are maintained completely, B is the number of fields whose attributes of the research object's files should be complete, C is the number of fields whose attributes of the research object's files meet the rationality check, and D is the number of fields whose attributes of the research object's files should meet the rationality check.

[0010] Furthermore, the calculation formula for the file completeness of the research object in the data health comprehensive evaluation system is as follows: In the above formula, x WBX is the file completeness of the research object, E is the number of files actually uploaded by the research object, and F is the number of files that the research object should upload.

[0011] Furthermore, the number of research objects in the data health comprehensive evaluation system Figure 1 The calculation formula of consistency is as follows: In the above formula, x YZX The number of research subjects Figure 1 Consistency, Z is the number of research subjects Figure 1 Consistency coefficient: if the research object can be found and correctly matched in the simplified diagram, Z=1; otherwise, Z=0.

[0012] Furthermore, if the integral power of the power plant's power generation output deviates from the power plant's power generation by no more than 8%, the integral power of the power plant's grid-connected output deviates from the power plant's grid-connected power by no more than 8%, and the grid-connected power of the power plant deviates from the input power of the corresponding grid-connected line by no more than 5%, then the power plant's power consistency rate is 100%, otherwise the power plant's power consistency rate is 0; If the difference between the sum of all incoming loads of the substation and the sum of the high-voltage side loads of all transformers does not exceed 5%, the difference between the sum of the high-voltage side loads of all transformers of the substation and the sum of the medium- and low-voltage side loads of all transformers does not exceed 5%, and the difference between the sum of the medium- and low-voltage side loads of all transformers of the substation and the sum of all outgoing loads of the substation does not exceed 5%, then the substation load consistency rate is 100%, otherwise the substation load consistency rate is 0; If the deviation between the substation integrated power and the power in the same period does not exceed 5%, the substation power consistency rate is 100%, otherwise the substation power consistency rate is 0; If the number of used bays on the high-voltage side of the substation is consistent with the number of incoming lines on the high-voltage side, the number of used bays on the medium-voltage side of the substation is consistent with the number of outgoing lines on the medium-voltage side, and the number of used bays on the low-voltage side of the substation is consistent with the number of outgoing lines on the low-voltage side, the substation bay consistency rate is 100, otherwise the substation bay consistency rate is 0; If the deviation between the load at the head end and the load at the end of the transmission line does not exceed 5%, the load consistency rate of the transmission line is 100%, otherwise the load consistency rate of the transmission line is 0; If the deviation between the integrated power of the transmission line and the power of the same period does not exceed 5%, the power consistency rate of the transmission line is 100%, otherwise the power consistency rate of the transmission line is 0; If the deviation between the sum of the loads of the distribution line and the distribution transformer at the same time does not exceed 8%, the load consistency rate of the distribution line is 100%, otherwise the load consistency rate of the distribution line is 0; If the deviation between the integrated power of the distribution line and the power of the same period does not exceed 5%, the power consistency rate of the distribution line is 100%, otherwise the power consistency rate of the distribution line is 0; If the deviation between the integrated power of the distribution transformer and the power of the same period does not exceed 5%, the power consistency rate of the distribution transformer is 100%, otherwise the power consistency rate of the distribution transformer is 0; If the active power measurement points of the power plant are fully configured, the configuration rate of the power output measurement points is 100, otherwise the configuration rate of the power output measurement points is 0; If the maximum output of the power plant / unit does not exceed 1.5 times the rated power of the power plant / unit and the active power measurement data of the power plant meets the following conditions: (number of available points for active data / number of measurement points*statistical duration*measurement frequency per hour)*100 is greater than 98%, then the power generation output data availability is 100%, otherwise the power generation output data availability is 0; If the active power measurement points of the power plant grid-connected line are fully configured, the online output measurement point configuration rate is 100%, otherwise the online output measurement point configuration rate is 0; If the active power measurement data of the power plant grid-connected line meets the following conditions: (number of available active power data points / number of measurement points*statistical duration*hourly measurement frequency)*100 is greater than 98%, and the maximum load does not exceed 1.5 times the line capacity, then the online output data availability is 100%, otherwise the online output data availability is 0; If the active / reactive measurement point configuration of the substation is complete and unique, the substation measurement point configuration rate is 100%, otherwise the substation measurement point configuration rate is 0; If the substation load does not exceed 1.5 times the rated capacity and the number of active data available points / number of measurement points*statistical duration*hourly measurement frequency)*100 is greater than 98%, the substation active power availability is 100%, otherwise, the substation active power availability is 0; If the substation load does not exceed 1.5 times the rated capacity and the number of reactive power data available points / number of measurement points*statistical duration*hourly measurement frequency)*100 is greater than 98%, the substation reactive power availability is 100%, otherwise, the substation reactive power availability is 0; If the active / reactive measurement points at both ends of the transmission line are configured completely and uniquely, the transmission line measurement point configuration rate is 100, otherwise the transmission line measurement point configuration rate is 0; If the maximum load of the transmission line does not exceed 1.5 times of the maximum transmission capacity and the transmission line measurement data meets the following conditions: (number of available points for active / reactive data / number of measurement points*statistical duration*hourly measurement frequency)*100 is greater than 98%, then the transmission line measurement data availability is 100%, otherwise the transmission line measurement data availability is 0; If the active / reactive measurement point configuration of the distribution line is complete and unique, the distribution line measurement point configuration rate is 100, otherwise the distribution line measurement point configuration rate is 0; If the active / reactive measurement data of the distribution line meets the following conditions: (number of available points for active / reactive data / number of measurement points*statistical duration*measurement frequency per hour)*100 is greater than 98% and the maximum load of the distribution line does not exceed 1.5 times the maximum transmission capacity, then the availability of the distribution line measurement data is 100%, otherwise the availability of the distribution line measurement data is 0; If the active / reactive / voltage measurement point configuration of the distribution transformer is complete and unique, the distribution transformer measurement point configuration rate is 100, otherwise the distribution transformer measurement point configuration rate is 0; If the maximum load of the distribution transformer does not exceed 1.5 times of the maximum transmission capacity and the distribution transformer measurement data meets the following conditions: (number of available points for active / reactive data / number of measurement points*statistical duration*measurement frequency per hour)*100 is greater than 98%, then the distribution transformer measurement data availability is 100%, otherwise the distribution transformer measurement data availability is 0.

[0013] Furthermore, the calculation formula for the indicator visibility of the research object in the data health comprehensive evaluation system is: X=P / Q*100%; Among them, X is the indicator visibility of the research object, P is the number of visible indicator fields of the research object, and Q is the total number of visible indicator fields of the research object; When the research object is a power plant, the visible indicator fields include: annual and monthly power generation, grid-connected power, and power consumption of the power plant; When the research object is a substation, the visible indicator fields include: substation maximum load rate, average load rate, integrated power, synchronous power, and synchronous line loss rate; When the research object is a transmission line, the visible indicator fields include: maximum load rate, average load rate, integrated power, power in the same period, and line loss rate in the same period of the transmission line; When the research object is a distribution line, the visible indicator fields include: maximum load rate, average load rate, integrated power, power consumption in the same period, and line loss rate in the same period of the distribution line; When the research object is a distribution transformer, the visible indicator fields include: maximum load rate, average load rate, integrated power, synchronous power, and synchronous line loss rate of the distribution transformer.

[0014] Furthermore, if the research object satisfies: the maximum load rate belongs to [0,150%] and the average load rate belongs to [0,60%] and the maximum load rate > the average load rate, then the rationality of the indicators of the research object in the comprehensive evaluation system of data health is 100; otherwise, the rationality of the indicators of the research object in the comprehensive evaluation system of data health is 0.

[0015] In a second aspect, a power system health assessment device based on multivariate information is provided, the power system health assessment device based on multivariate information comprising: An acquisition module is used to obtain the index values ​​of each final evaluation index of the power system in the area to be evaluated in the comprehensive evaluation system of data health; An evaluation module is used to determine a comprehensive evaluation value of the data health of the power system in the area to be evaluated based on the index values ​​of the final-level evaluation indicators and the weights of the final-level evaluation indicators. The comprehensive evaluation value of the data health of the power system in the area to be evaluated is the power system health evaluation result of the power system in the area to be evaluated.

[0016] The above one or more technical solutions of the present invention have at least one or more of the following beneficial effects: The present invention provides a method and device for evaluating the health of an electric power system based on multivariate information, including: obtaining the index value of each final evaluation index of the electric power system in the area to be evaluated in the comprehensive evaluation system of data health; determining the comprehensive evaluation value of the data health of the electric power system in the area to be evaluated based on the index value of each final evaluation index and the weight of each final evaluation index, and the comprehensive evaluation value of the data health of the electric power system in the area to be evaluated is the electric power system health evaluation result of the electric power system in the area to be evaluated. The technical solution provided by the present invention, through the aggregation of multivariate information, establishes a standardized equipment data health evaluation system, generates a complete and unified system evaluation method, comprehensively considers multiple detailed indicators, and realizes score quantification and periodic operation calculation, which has guiding suggestions for the overall operation of the power grid. And getting rid of the theoretical research level, this type of calculation method has been put into actual practical application, and has guiding suggestions for the management and executive personnel of the power grid. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a flowchart of the main steps of the power system health assessment method based on multivariate information according to an embodiment of the present invention. DETAILED DESCRIPTION

[0018] The specific implementation modes of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0019] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments 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.

[0020] As disclosed in the background technology, with the continuous advancement of the development of energy Internet and digital reform, the power market has put forward higher requirements for the efficient and high-quality operation of intelligent distribution network systems. As an important component of the power grid, the operation of power equipment can better reflect the overall stability and security of the power grid system.

[0021] Therefore, the concept of human health is applied to power equipment. Based on the massive big data of "source, network, load, and storage", an equipment health evaluation system is constructed based on multi-dimensional information, and various evaluation indicators are integrated and quantified to monitor the overall operation of the system more intuitively and conveniently. Multi-indicators are dimensionlessly processed to build a comprehensive data health evaluation system. The subsequent regular calculation of health indicators will help to grasp the overall operation status of the distribution network system, and realize self-monitoring and self-diagnosis of specific equipment problems, which is of great significance for evaluating the sustainable development of the distribution network in the future.

[0022] Equipment health mainly involves comprehensive model evaluation of the key features of the evaluation object. The mainstream classification is divided into two categories: internal factors (equipment characteristics) such as: operating years, power supply quality, equipment level, power supply capacity, etc. External factors (distribution network operation level and special events): distribution transformer outages caused by external environmental factors, equipment operation level (load rate), grid safety level (insulation rate), etc. However, since there are no clear specifications for existing data health evaluation indicators, the evaluation system or model used, and the indicators involved are not the same, a more standardized and systematic evaluation method has not been constructed. Furthermore, at this stage, a large number of evaluation methods for equipment health remain at the theoretical research level, and many subjective decision factors are still added to the actual application of the power grid management and execution layers, and the equipment health indicators do not have a standardized calculation cycle, so that the overall theoretically calculated health indicators have a low degree of confidence.

[0023] In order to improve the above-mentioned problems, the present invention provides a method and device for evaluating the health of an electric power system based on multivariate information, including: obtaining the index values ​​of each terminal evaluation index of the electric power system in the area to be evaluated in the comprehensive evaluation system of data health; determining the comprehensive evaluation value of the data health of the electric power system in the area to be evaluated based on the index values ​​of each terminal evaluation index and the weights of each terminal evaluation index, and the comprehensive evaluation value of the data health of the electric power system in the area to be evaluated is the electric power system health evaluation result of the electric power system in the area to be evaluated. The technical solution provided by the present invention, through the aggregation of multivariate information, establishes a standardized equipment data health evaluation system, generates a complete and unified system evaluation method, comprehensively considers multiple detailed indicators, and realizes score quantification and periodic operation calculation, which has guiding suggestions for the overall operation of the power grid. And getting rid of the theoretical research level, this type of calculation method has been put into actual practical application, and has guiding suggestions for the management and executive personnel of the power grid.

[0024] The above scheme is described in detail below.

[0025] Example 1 See attached Figure 1 , Figure 1 FIG. 1 is a flow chart showing the main steps of a method for evaluating the health of a power system based on multivariate information according to an embodiment of the present invention. Figure 1 As shown, the power system health assessment method based on multivariate information in the embodiment of the present invention mainly includes the following steps: Step S101: obtaining the index values ​​of each final evaluation index of the regional power system to be evaluated in the data health comprehensive evaluation system; Step S102: Determine a comprehensive evaluation value of data health of the power system in the area to be evaluated based on the index value of each final-level evaluation index and the weight of each final-level evaluation index, wherein the comprehensive evaluation value of data health of the power system in the area to be evaluated is a power system health evaluation result of the power system in the area to be evaluated.

[0026] In this embodiment, the weight is calculated by summarizing the weights of the lower-level indicators step by step to obtain the equipment health score index. The weights of various indicators are set based on the analytic hierarchy process (AHP) of qualitative and quantitative analysis methods and combined with the fuzzy comprehensive evaluation method, which is more convenient and quick to construct the weights of the data health evaluation index system with multi-objective, multi-criteria and multi-structural characteristics.

[0027] In the data health comprehensive evaluation system, individual devices are aggregated from lower-level indicators to higher-level indicators according to weights. If there is only one lower-level indicator, the weight of the upward aggregation is 1, and finally a comprehensive data health score ranking table of provincial companies and State Grid Corporation is formed. The underlying construction principle is shown in the following formula.

[0028] The five-level indicators of the detailed calculation equipment are aggregated and calculated to obtain the comprehensive first-level indicators, and the comprehensive data health score is obtained by averaging the equipment scores. A comprehensive data health ranking table is generated regularly, and a list of problematic equipment is output to facilitate the subsequent equipment management of provincial companies. In this embodiment, the data health comprehensive evaluation system is a five-level evaluation system, the first-level indicator is the comprehensive data health evaluation value, and the second-level indicators include: power supply indicators, power grid indicators, user indicators, and energy storage indicators; The three-level indicators corresponding to the power supply indicators include: power supply three-level indicators; The three-level indicators corresponding to the power grid indicators include: substation indicators, transmission line indicators, distribution line indicators, and distribution transformer indicators; The three-level indicators corresponding to the user indicators include: high-voltage user indicators and business expansion user indicators; The three-level indicators corresponding to the energy storage index include: energy storage level 3 indicators; The four-level indicators corresponding to the three-level indicators of power supply include: power plant file accuracy, unit file accuracy, grid-connected line file accuracy, power plant file completeness, power plant data Figure 1 Consistency, power plant measurement availability, power plant relationship penetration rate, and power plant indicator authenticity; The four-level indicators corresponding to the substation indicators include: substation file accuracy, transformer file accuracy, substation file completeness, substation number Figure 1 consistency, substation measurement availability, substation relationship penetration rate, substation equipment project correlation rate, substation indicator authenticity, transformer indicator authenticity; The four-level indicators corresponding to the transmission line indicators include: transmission line file accuracy, number of transmission lines Figure 1 consistency, transmission line measurement availability, transmission line equipment project correlation rate, transmission line relationship penetration rate, and transmission line indicator authenticity; The four-level indicators corresponding to the distribution line indicators include: distribution line file accuracy, distribution line number Figure 1 Consistency, distribution line measurement availability, distribution line equipment project correlation rate, distribution line relationship penetration rate, distribution line indicator authenticity; The four-level indicators corresponding to the distribution transformer indicators include: distribution transformer file accuracy, distribution transformer number Figure 1 Consistency, distribution transformer measurement availability, distribution transformer equipment project correlation rate, distribution transformer relationship penetration rate, distribution transformer indicator authenticity; The four-level indicators corresponding to the high-voltage user indicators include: high-voltage user file accuracy, high-voltage user number Figure 1Consistency, high-voltage user measurement availability, and high-voltage user relationship penetration rate; The four-level indicators corresponding to the business expansion user indicators include: business expansion user profile accuracy; The four-level indicators corresponding to the three-level energy storage indicators include: new energy storage power station file accuracy, grid-connected line file accuracy, new energy storage power station data Figure 1 Consistency, measurement availability of new energy storage power stations, and authenticity of indicators of new energy storage power stations; The five-level indicators corresponding to the accuracy of the power plant archives include: the standardization rate of power plant archives, the rationality rate of power plant archives; The five-level indicators corresponding to the unit file accuracy include: unit file standardization rate, converter file standardization rate, fan file standardization rate, and unit file rationality rate; The five-level indicators corresponding to the accuracy of the grid-connected line files include: grid-connected line file standardization rate, grid-connected line file rationality rate; The five-level indicators corresponding to the completeness of the power plant documents include: completeness of power plant documents; The number of power plants Figure 1 The five-level indicators corresponding to consistency include: number of power plants Figure 1 consistency; The five-level indicators corresponding to the power plant measurement availability include: power generation output measurement point configuration rate, power generation output data availability rate, online output measurement point configuration rate, online output data availability rate; The five-level indicators corresponding to the power plant relationship penetration rate include: power plant power consistency rate; The five-level indicators corresponding to the authenticity of the power plant indicators include: visibility of power plant indicators; The five-level indicators corresponding to the substation archive accuracy include: substation archive standardization rate, substation archive rationality rate; The five-level indicators corresponding to the transformer file accuracy include: transformer file standardization rate, transformer file rationality rate; The five-level indicators corresponding to the completeness of the substation documents include: completeness of substation documents; The number of substations Figure 1 The five-level indicators corresponding to consistency include: number of substations Figure 1 consistency; The five-level indicators corresponding to the substation measurement availability include: substation measurement point configuration rate, substation active power availability rate, and substation reactive power availability rate; The five-level indicators corresponding to the substation relationship penetration rate include: substation load consistency rate, substation power consistency rate, and substation interval consistency rate; The five-level indicators corresponding to the substation equipment project association rate include: substation equipment project association rate; The five-level indicators corresponding to the authenticity of the substation indicators include: visibility of substation indicators and rationality of substation indicators; The five-level indicators corresponding to the authenticity of the transformer indicators include: transformer indicator visibility, transformer indicator rationality; The five-level indicators corresponding to the accuracy of the transmission line archives include: transmission line archive standardization rate, transmission line archive rationality rate; The number of transmission lines Figure 1 The five-level indicators corresponding to consistency include: number of transmission lines Figure 1 consistency; The five-level indicators corresponding to the transmission line measurement availability include: transmission line measurement point configuration rate, transmission line active power availability rate, transmission line reactive power availability rate; The five-level indicators corresponding to the power transmission line equipment project correlation rate include: power transmission line equipment project correlation rate; The five-level indicators corresponding to the transmission line relationship penetration rate include: transmission line load consistency rate, transmission line power consistency rate; The five-level indicators corresponding to the authenticity of the transmission line indicators include: visibility of transmission line indicators, rationality of transmission line indicators; The five-level indicators corresponding to the accuracy of the distribution line archives include: the standardization rate of distribution line archives, the rationality rate of distribution line archives; The number of distribution lines Figure 1 The five-level indicators corresponding to consistency include: number of distribution lines Figure 1 consistency; The five-level indicators corresponding to the distribution line measurement availability include: distribution line measurement point configuration rate, distribution line active power availability rate, and distribution line reactive power availability rate; The five-level indicators corresponding to the distribution line equipment project correlation rate include: distribution line equipment project correlation rate; The five-level indicators corresponding to the distribution line relationship penetration rate include: distribution line load consistency rate, distribution line power consistency rate; The five-level indicators corresponding to the authenticity of the distribution line indicators include: visibility of distribution line indicators, rationality of distribution line indicators; The five-level indicators corresponding to the accuracy of the distribution transformer files include: the standardization rate of distribution transformer files, the rationality rate of distribution transformer files; The number of distribution transformers Figure 1 The five-level indicators corresponding to the consistency include: the number of distribution transformers Figure 1 consistency; The five-level indicators corresponding to the distribution transformer measurement availability include: distribution transformer measurement point configuration rate, distribution transformer active power availability rate, distribution transformer reactive power availability rate, and distribution transformer voltage availability rate; The five-level indicators corresponding to the distribution transformer equipment project correlation rate include: distribution transformer equipment project correlation rate; The five-level indicators corresponding to the distribution transformer relationship penetration rate include: distribution transformer power consistency rate; The five-level indicators corresponding to the authenticity of the distribution transformer indicators include: visibility of distribution transformer indicators, rationality of distribution transformer indicators; The five-level indicators corresponding to the accuracy of the high-voltage user files include: the standardization rate of high-voltage user files, the rationality rate of high-voltage user files; The number of high voltage users Figure 1 The five-level indicators corresponding to consistency include: the number of high-voltage users Figure 1 consistency; The five-level indicators corresponding to the high-voltage user measurement availability include: high-voltage user metering point configuration rate, high-voltage user active power availability rate; The five-level indicators corresponding to the high-voltage user relationship penetration rate include: user-device relationship completeness rate, high-voltage user power consistency rate; The five-level indicators corresponding to the accuracy of the business expansion user files include: business expansion user file standardization rate, business expansion user file rationality rate; The five-level indicators corresponding to the accuracy of the new energy storage power station archives include: the standardization rate of the new energy storage power station archives, the rationality rate of the new energy storage power station archives; The five-level indicators corresponding to the accuracy of the grid-connected line files include: grid-connected line file standardization rate, grid-connected line file rationality rate; The number of new energy storage power stations Figure 1 The five-level indicators corresponding to consistency include: the number of new energy storage power stations Figure 1 consistency; The five-level indicators corresponding to the measurement availability of the new energy storage power station include: new energy storage power station measurement point configuration rate, new energy storage power station active power availability rate, new energy storage grid-connected line measurement availability rate, new energy storage grid-connected line active availability rate; The five-level indicators corresponding to the authenticity of the new energy storage power station indicators include: authenticity of the new energy storage power station indicators.

[0029] Specifically, the calculation formula for the accuracy of the archives of the research object in the comprehensive evaluation system of data health is as follows: In the above formula, The accuracy of the files of the research object, The archival standardization of the research object, is the archive standardization weight of the research object, The rationality of the archives of the research object, The rationality weight of the archives of the research object.

[0030] In one embodiment, the calculation formula of the file standardization of the research object is as follows: The calculation formula of the file rationality of the research object is as follows: In the above formula, A is the number of fields whose attributes of the research object's files are maintained completely, B is the number of fields whose attributes of the research object's files should be complete, C is the number of fields whose attributes of the research object's files meet the rationality check, and D is the number of fields whose attributes of the research object's files should meet the rationality check.

[0031] In one embodiment, the calculation formula for the file completeness of the research object in the data health comprehensive evaluation system is as follows: In the above formula, x WBX is the file completeness of the research object, E is the number of files actually uploaded by the research object, and F is the number of files that the research object should upload.

[0032] In one embodiment, the number of research objects in the data health comprehensive evaluation system Figure 1 The calculation formula of consistency is as follows: In the above formula, x YZX The number of research subjects Figure 1 Consistency, Z is the number of research subjects Figure 1 Consistency coefficient: if the research object can be found and correctly matched in the simplified diagram, Z=1; otherwise, Z=0.

[0033] In one embodiment, if the integral power of the power plant's power generation output deviates from the power plant's power generation by no more than 8%, the integral power of the power plant's grid-connected output deviates from the power plant's grid-connected power by no more than 8%, and the grid-connected power of the power plant deviates from the input power of the corresponding grid-connected line by no more than 5%, then the power plant's power consistency rate is 100, otherwise the power plant's power consistency rate is 0; If the difference between the sum of all incoming loads of the substation and the sum of the high-voltage side loads of all transformers does not exceed 5%, the difference between the sum of the high-voltage side loads of all transformers of the substation and the sum of the medium- and low-voltage side loads of all transformers does not exceed 5%, and the difference between the sum of the medium- and low-voltage side loads of all transformers of the substation and the sum of all outgoing loads of the substation does not exceed 5%, then the substation load consistency rate is 100%, otherwise the substation load consistency rate is 0; If the deviation between the substation integrated power and the power in the same period does not exceed 5%, the substation power consistency rate is 100%, otherwise the substation power consistency rate is 0; If the number of used bays on the high-voltage side of the substation is consistent with the number of incoming lines on the high-voltage side, the number of used bays on the medium-voltage side of the substation is consistent with the number of outgoing lines on the medium-voltage side, and the number of used bays on the low-voltage side of the substation is consistent with the number of outgoing lines on the low-voltage side, the substation bay consistency rate is 100, otherwise the substation bay consistency rate is 0; If the deviation between the load at the head end and the load at the end of the transmission line does not exceed 5%, the load consistency rate of the transmission line is 100%, otherwise the load consistency rate of the transmission line is 0; If the deviation between the integrated power of the transmission line and the power of the same period does not exceed 5%, the power consistency rate of the transmission line is 100%, otherwise the power consistency rate of the transmission line is 0; If the deviation between the sum of the loads of the distribution line and the distribution transformer at the same time does not exceed 8%, the load consistency rate of the distribution line is 100%, otherwise the load consistency rate of the distribution line is 0; If the deviation between the integrated power of the distribution line and the power of the same period does not exceed 5%, the power consistency rate of the distribution line is 100%, otherwise the power consistency rate of the distribution line is 0; If the deviation between the integrated power of the distribution transformer and the power of the same period does not exceed 5%, the power consistency rate of the distribution transformer is 100%, otherwise the power consistency rate of the distribution transformer is 0; If the active power measurement points of the power plant are fully configured, the configuration rate of the power output measurement points is 100, otherwise the configuration rate of the power output measurement points is 0; If the maximum output of the power plant / unit does not exceed 1.5 times the rated power of the power plant / unit and the active power measurement data of the power plant meets the following conditions: (number of available points for active data / number of measurement points*statistical duration*measurement frequency per hour)*100 is greater than 98%, then the power generation output data availability is 100%, otherwise the power generation output data availability is 0; If the active power measurement points of the power plant grid-connected line are fully configured, the online output measurement point configuration rate is 100%, otherwise the online output measurement point configuration rate is 0; If the active power measurement data of the power plant grid-connected line meets the following conditions: (number of available active power data points / number of measurement points*statistical duration*hourly measurement frequency)*100 is greater than 98%, and the maximum load does not exceed 1.5 times the line capacity, then the online output data availability is 100%, otherwise the online output data availability is 0; If the active / reactive measurement point configuration of the substation is complete and unique, the substation measurement point configuration rate is 100%, otherwise the substation measurement point configuration rate is 0; If the substation load does not exceed 1.5 times the rated capacity and the number of active data available points / number of measurement points*statistical duration*hourly measurement frequency)*100 is greater than 98%, the substation active power availability is 100%, otherwise, the substation active power availability is 0; If the substation load does not exceed 1.5 times the rated capacity and the number of reactive power data available points / number of measurement points*statistical duration*hourly measurement frequency)*100 is greater than 98%, the substation reactive power availability is 100%, otherwise, the substation reactive power availability is 0; If the active / reactive measurement points at both ends of the transmission line are configured completely and uniquely, the transmission line measurement point configuration rate is 100, otherwise the transmission line measurement point configuration rate is 0; If the maximum load of the transmission line does not exceed 1.5 times of the maximum transmission capacity and the transmission line measurement data meets the following conditions: (number of available points for active / reactive data / number of measurement points*statistical duration*hourly measurement frequency)*100 is greater than 98%, then the transmission line measurement data availability is 100%, otherwise the transmission line measurement data availability is 0; If the active / reactive measurement point configuration of the distribution line is complete and unique, the distribution line measurement point configuration rate is 100, otherwise the distribution line measurement point configuration rate is 0; If the active / reactive measurement data of the distribution line meets the following conditions: (number of available points for active / reactive data / number of measurement points*statistical duration*measurement frequency per hour)*100 is greater than 98% and the maximum load of the distribution line does not exceed 1.5 times the maximum transmission capacity, then the availability of the distribution line measurement data is 100%, otherwise the availability of the distribution line measurement data is 0; If the active / reactive / voltage measurement point configuration of the distribution transformer is complete and unique, the distribution transformer measurement point configuration rate is 100, otherwise the distribution transformer measurement point configuration rate is 0; If the maximum load of the distribution transformer does not exceed 1.5 times of the maximum transmission capacity and the distribution transformer measurement data meets the following conditions: (number of available points for active / reactive data / number of measurement points*statistical duration*measurement frequency per hour)*100 is greater than 98%, then the distribution transformer measurement data availability is 100%, otherwise the distribution transformer measurement data availability is 0.

[0034] In one embodiment, the calculation formula of the indicator visibility of the research object in the data health comprehensive evaluation system is: X=P / Q*100%; Among them, X is the indicator visibility of the research object, P is the number of visible indicator fields of the research object, and Q is the total number of visible indicator fields of the research object; When the research object is a power plant, the visible indicator fields include: annual and monthly power generation, grid-connected power, and power consumption of the power plant; When the research object is a substation, the visible indicator fields include: substation maximum load rate, average load rate, integrated power, synchronous power, and synchronous line loss rate; When the research object is a transmission line, the visible indicator fields include: maximum load rate, average load rate, integrated power, power in the same period, and line loss rate in the same period of the transmission line; When the research object is a distribution line, the visible indicator fields include: maximum load rate, average load rate, integrated power, power consumption in the same period, and line loss rate in the same period of the distribution line; When the research object is a distribution transformer, the visible indicator fields include: maximum load rate, average load rate, integrated power, synchronous power, and synchronous line loss rate of the distribution transformer.

[0035] Furthermore, if the research object satisfies: the maximum load rate belongs to [0,150%] and the average load rate belongs to [0,60%] and the maximum load rate > the average load rate, then the rationality of the indicators of the research object in the comprehensive evaluation system of data health is 100; otherwise, the rationality of the indicators of the research object in the comprehensive evaluation system of data health is 0.

[0036] Example 2 Based on the same inventive concept, the present invention also provides a power system health assessment device based on multivariate information, the power system health assessment device based on multivariate information comprising: An acquisition module is used to obtain the index values ​​of each final evaluation index of the power system in the area to be evaluated in the comprehensive evaluation system of data health; An evaluation module is used to determine a comprehensive evaluation value of the data health of the power system in the area to be evaluated based on the index values ​​of the final-level evaluation indicators and the weights of the final-level evaluation indicators. The comprehensive evaluation value of the data health of the power system in the area to be evaluated is the power system health evaluation result of the power system in the area to be evaluated.

[0037] Preferably, the data health comprehensive evaluation system is a five-level evaluation system, the first-level indicator is the data health comprehensive evaluation value, and the second-level indicators include: power supply indicator, power grid indicator, user indicator, and energy storage indicator; The three-level indicators corresponding to the power supply indicators include: power supply three-level indicators; The three-level indicators corresponding to the power grid indicators include: substation indicators, transmission line indicators, distribution line indicators, and distribution transformer indicators; The three-level indicators corresponding to the user indicators include: high-voltage user indicators and business expansion user indicators; The three-level indicators corresponding to the energy storage index include: energy storage level 3 indicators; The four-level indicators corresponding to the three-level indicators of power supply include: power plant file accuracy, unit file accuracy, grid-connected line file accuracy, power plant file completeness, power plant data Figure 1 Consistency, power plant measurement availability, power plant relationship penetration rate, and power plant indicator authenticity; The four-level indicators corresponding to the substation indicators include: substation file accuracy, transformer file accuracy, substation file completeness, substation number Figure 1consistency, substation measurement availability, substation relationship penetration rate, substation equipment project correlation rate, substation indicator authenticity, transformer indicator authenticity; The four-level indicators corresponding to the transmission line indicators include: transmission line file accuracy, number of transmission lines Figure 1 consistency, transmission line measurement availability, transmission line equipment project correlation rate, transmission line relationship penetration rate, and transmission line indicator authenticity; The four-level indicators corresponding to the distribution line indicators include: distribution line file accuracy, distribution line number Figure 1 Consistency, distribution line measurement availability, distribution line equipment project correlation rate, distribution line relationship penetration rate, distribution line indicator authenticity; The four-level indicators corresponding to the distribution transformer indicators include: distribution transformer file accuracy, distribution transformer number Figure 1 Consistency, distribution transformer measurement availability, distribution transformer equipment project correlation rate, distribution transformer relationship penetration rate, distribution transformer indicator authenticity; The four-level indicators corresponding to the high-voltage user indicators include: high-voltage user file accuracy, high-voltage user number Figure 1 Consistency, high-voltage user measurement availability, and high-voltage user relationship penetration rate; The four-level indicators corresponding to the business expansion user indicators include: business expansion user profile accuracy; The four-level indicators corresponding to the three-level energy storage indicators include: new energy storage power station file accuracy, grid-connected line file accuracy, new energy storage power station data Figure 1 Consistency, measurement availability of new energy storage power stations, and authenticity of indicators of new energy storage power stations; The five-level indicators corresponding to the accuracy of the power plant archives include: the standardization rate of power plant archives, the rationality rate of power plant archives; The five-level indicators corresponding to the unit file accuracy include: unit file standardization rate, converter file standardization rate, fan file standardization rate, and unit file rationality rate; The five-level indicators corresponding to the accuracy of the grid-connected line files include: grid-connected line file standardization rate, grid-connected line file rationality rate; The five-level indicators corresponding to the completeness of the power plant documents include: completeness of power plant documents; The number of power plants Figure 1 The five-level indicators corresponding to consistency include: number of power plants Figure 1 consistency; The five-level indicators corresponding to the power plant measurement availability include: power generation output measurement point configuration rate, power generation output data availability rate, online output measurement point configuration rate, online output data availability rate; The five-level indicators corresponding to the power plant relationship penetration rate include: power plant power consistency rate; The five-level indicators corresponding to the authenticity of the power plant indicators include: visibility of power plant indicators; The five-level indicators corresponding to the substation archive accuracy include: substation archive standardization rate, substation archive rationality rate; The five-level indicators corresponding to the transformer file accuracy include: transformer file standardization rate, transformer file rationality rate; The five-level indicators corresponding to the completeness of the substation documents include: completeness of substation documents; The number of substations Figure 1 The five-level indicators corresponding to consistency include: number of substations Figure 1 consistency; The five-level indicators corresponding to the substation measurement availability include: substation measurement point configuration rate, substation active power availability rate, and substation reactive power availability rate; The five-level indicators corresponding to the substation relationship penetration rate include: substation load consistency rate, substation power consistency rate, and substation interval consistency rate; The five-level indicators corresponding to the substation equipment project association rate include: substation equipment project association rate; The five-level indicators corresponding to the authenticity of the substation indicators include: visibility of substation indicators and rationality of substation indicators; The five-level indicators corresponding to the authenticity of the transformer indicators include: transformer indicator visibility, transformer indicator rationality; The five-level indicators corresponding to the accuracy of the transmission line archives include: transmission line archive standardization rate, transmission line archive rationality rate; The number of transmission lines Figure 1 The five-level indicators corresponding to consistency include: number of transmission lines Figure 1 consistency; The five-level indicators corresponding to the transmission line measurement availability include: transmission line measurement point configuration rate, transmission line active power availability rate, transmission line reactive power availability rate; The five-level indicators corresponding to the power transmission line equipment project correlation rate include: power transmission line equipment project correlation rate; The five-level indicators corresponding to the transmission line relationship penetration rate include: transmission line load consistency rate, transmission line power consistency rate; The five-level indicators corresponding to the authenticity of the transmission line indicators include: visibility of transmission line indicators, rationality of transmission line indicators; The five-level indicators corresponding to the accuracy of the distribution line archives include: the standardization rate of distribution line archives, the rationality rate of distribution line archives; The number of distribution lines Figure 1 The five-level indicators corresponding to consistency include: number of distribution lines Figure 1 consistency; The five-level indicators corresponding to the distribution line measurement availability include: distribution line measurement point configuration rate, distribution line active power availability rate, and distribution line reactive power availability rate; The five-level indicators corresponding to the distribution line equipment project correlation rate include: distribution line equipment project correlation rate; The five-level indicators corresponding to the distribution line relationship penetration rate include: distribution line load consistency rate, distribution line power consistency rate; The five-level indicators corresponding to the authenticity of the distribution line indicators include: visibility of distribution line indicators, rationality of distribution line indicators; The five-level indicators corresponding to the accuracy of the distribution transformer files include: the standardization rate of distribution transformer files, the rationality rate of distribution transformer files; The number of distribution transformers Figure 1 The five-level indicators corresponding to the consistency include: the number of distribution transformers Figure 1 consistency; The five-level indicators corresponding to the distribution transformer measurement availability include: distribution transformer measurement point configuration rate, distribution transformer active power availability rate, distribution transformer reactive power availability rate, and distribution transformer voltage availability rate; The five-level indicators corresponding to the distribution transformer equipment project correlation rate include: distribution transformer equipment project correlation rate; The five-level indicators corresponding to the distribution transformer relationship penetration rate include: distribution transformer power consistency rate; The five-level indicators corresponding to the authenticity of the distribution transformer indicators include: visibility of distribution transformer indicators, rationality of distribution transformer indicators; The five-level indicators corresponding to the accuracy of the high-voltage user files include: the standardization rate of high-voltage user files, the rationality rate of high-voltage user files; The number of high voltage users Figure 1 The five-level indicators corresponding to consistency include: the number of high-voltage users Figure 1 consistency; The five-level indicators corresponding to the high-voltage user measurement availability include: high-voltage user metering point configuration rate, high-voltage user active power availability rate; The five-level indicators corresponding to the high-voltage user relationship penetration rate include: user-device relationship completeness rate, high-voltage user power consistency rate; The five-level indicators corresponding to the accuracy of the business expansion user files include: business expansion user file standardization rate, business expansion user file rationality rate; The five-level indicators corresponding to the accuracy of the new energy storage power station archives include: the standardization rate of the new energy storage power station archives, the rationality rate of the new energy storage power station archives; The five-level indicators corresponding to the accuracy of the grid-connected line files include: grid-connected line file standardization rate, grid-connected line file rationality rate; The number of new energy storage power stations Figure 1 The five-level indicators corresponding to consistency include: the number of new energy storage power stations Figure 1 consistency; The five-level indicators corresponding to the measurement availability of the new energy storage power station include: new energy storage power station measurement point configuration rate, new energy storage power station active power availability rate, new energy storage grid-connected line measurement availability rate, new energy storage grid-connected line active availability rate; The five-level indicators corresponding to the authenticity of the new energy storage power station indicators include: authenticity of the new energy storage power station indicators.

[0038] Furthermore, the calculation formula for the accuracy of the archives of the research object in the comprehensive evaluation system of data health is as follows: In the above formula, The accuracy of the files of the research object, The archival standardization of the research object, is the archive standardization weight of the research object, The rationality of the archives of the research object, The rationality weight of the archives of the research object.

[0039] Furthermore, the calculation formula of the file standardization of the research object is as follows: The calculation formula of the file rationality of the research object is as follows: In the above formula, A is the number of fields whose attributes of the research object's files are maintained completely, B is the number of fields whose attributes of the research object's files should be complete, C is the number of fields whose attributes of the research object's files meet the rationality check, and D is the number of fields whose attributes of the research object's files should meet the rationality check.

[0040] Furthermore, the calculation formula for the file completeness of the research object in the data health comprehensive evaluation system is as follows: In the above formula, x WBX is the file completeness of the research object, E is the number of files actually uploaded by the research object, and F is the number of files that the research object should upload.

[0041] Furthermore, the number of research objects in the data health comprehensive evaluation system Figure 1 The calculation formula of consistency is as follows: In the above formula, x YZX The number of research subjects Figure 1 Consistency, Z is the number of research subjects Figure 1Consistency coefficient: if the research object can be found and correctly matched in the simplified diagram, Z=1; otherwise, Z=0.

[0042] Furthermore, if the integral power of the power plant's power generation output deviates from the power plant's power generation by no more than 8%, the integral power of the power plant's grid-connected output deviates from the power plant's grid-connected power by no more than 8%, and the grid-connected power of the power plant deviates from the input power of the corresponding grid-connected line by no more than 5%, then the power plant's power consistency rate is 100%, otherwise the power plant's power consistency rate is 0; If the difference between the sum of all incoming loads of the substation and the sum of the high-voltage side loads of all transformers does not exceed 5%, the difference between the sum of the high-voltage side loads of all transformers of the substation and the sum of the medium- and low-voltage side loads of all transformers does not exceed 5%, and the difference between the sum of the medium- and low-voltage side loads of all transformers of the substation and the sum of all outgoing loads of the substation does not exceed 5%, then the substation load consistency rate is 100%, otherwise the substation load consistency rate is 0; If the deviation between the substation integrated power and the power in the same period does not exceed 5%, the substation power consistency rate is 100%, otherwise the substation power consistency rate is 0; If the number of used bays on the high-voltage side of the substation is consistent with the number of incoming lines on the high-voltage side, the number of used bays on the medium-voltage side of the substation is consistent with the number of outgoing lines on the medium-voltage side, and the number of used bays on the low-voltage side of the substation is consistent with the number of outgoing lines on the low-voltage side, the substation bay consistency rate is 100, otherwise the substation bay consistency rate is 0; If the deviation between the load at the head end and the load at the end of the transmission line does not exceed 5%, the load consistency rate of the transmission line is 100%, otherwise the load consistency rate of the transmission line is 0; If the deviation between the integrated power of the transmission line and the power of the same period does not exceed 5%, the power consistency rate of the transmission line is 100%, otherwise the power consistency rate of the transmission line is 0; If the deviation between the sum of the loads of the distribution line and the distribution transformer at the same time does not exceed 8%, the load consistency rate of the distribution line is 100%, otherwise the load consistency rate of the distribution line is 0; If the deviation between the integrated power of the distribution line and the power of the same period does not exceed 5%, the power consistency rate of the distribution line is 100%, otherwise the power consistency rate of the distribution line is 0; If the deviation between the integrated power of the distribution transformer and the power of the same period does not exceed 5%, the power consistency rate of the distribution transformer is 100%, otherwise the power consistency rate of the distribution transformer is 0; If the active power measurement points of the power plant are fully configured, the configuration rate of the power output measurement points is 100, otherwise the configuration rate of the power output measurement points is 0; If the maximum output of the power plant / unit does not exceed 1.5 times the rated power of the power plant / unit and the active power measurement data of the power plant meets the following conditions: (number of available points for active data / number of measurement points*statistical duration*measurement frequency per hour)*100 is greater than 98%, then the power generation output data availability is 100%, otherwise the power generation output data availability is 0; If the active power measurement points of the power plant grid-connected line are fully configured, the online output measurement point configuration rate is 100%, otherwise the online output measurement point configuration rate is 0; If the active power measurement data of the power plant grid-connected line meets the following conditions: (number of available active power data points / number of measurement points*statistical duration*hourly measurement frequency)*100 is greater than 98%, and the maximum load does not exceed 1.5 times the line capacity, then the online output data availability is 100%, otherwise the online output data availability is 0; If the active / reactive measurement point configuration of the substation is complete and unique, the substation measurement point configuration rate is 100%, otherwise the substation measurement point configuration rate is 0; If the substation load does not exceed 1.5 times the rated capacity and the number of active data available points / number of measurement points*statistical duration*hourly measurement frequency)*100 is greater than 98%, the substation active power availability is 100%, otherwise, the substation active power availability is 0; If the substation load does not exceed 1.5 times the rated capacity and the number of reactive power data available points / number of measurement points*statistical duration*hourly measurement frequency)*100 is greater than 98%, the substation reactive power availability is 100%, otherwise, the substation reactive power availability is 0; If the active / reactive measurement points at both ends of the transmission line are configured completely and uniquely, the transmission line measurement point configuration rate is 100, otherwise the transmission line measurement point configuration rate is 0; If the maximum load of the transmission line does not exceed 1.5 times of the maximum transmission capacity and the transmission line measurement data meets the following conditions: (number of available points for active / reactive data / number of measurement points*statistical duration*hourly measurement frequency)*100 is greater than 98%, then the transmission line measurement data availability is 100%, otherwise the transmission line measurement data availability is 0; If the active / reactive measurement point configuration of the distribution line is complete and unique, the distribution line measurement point configuration rate is 100, otherwise the distribution line measurement point configuration rate is 0; If the active / reactive measurement data of the distribution line meets the following conditions: (number of available points for active / reactive data / number of measurement points*statistical duration*measurement frequency per hour)*100 is greater than 98% and the maximum load of the distribution line does not exceed 1.5 times the maximum transmission capacity, then the availability of the distribution line measurement data is 100%, otherwise the availability of the distribution line measurement data is 0; If the active / reactive / voltage measurement point configuration of the distribution transformer is complete and unique, the distribution transformer measurement point configuration rate is 100, otherwise the distribution transformer measurement point configuration rate is 0; If the maximum load of the distribution transformer does not exceed 1.5 times of the maximum transmission capacity and the distribution transformer measurement data meets the following conditions: (number of available points for active / reactive data / number of measurement points*statistical duration*measurement frequency per hour)*100 is greater than 98%, then the distribution transformer measurement data availability is 100%, otherwise the distribution transformer measurement data availability is 0.

[0043] Furthermore, the calculation formula for the indicator visibility of the research object in the data health comprehensive evaluation system is: X=P / Q*100%; Among them, X is the indicator visibility of the research object, P is the number of visible indicator fields of the research object, and Q is the total number of visible indicator fields of the research object; When the research object is a power plant, the visible indicator fields include: annual and monthly power generation, grid-connected power, and power consumption of the power plant; When the research object is a substation, the visible indicator fields include: substation maximum load rate, average load rate, integrated power, synchronous power, and synchronous line loss rate; When the research object is a transmission line, the visible indicator fields include: maximum load rate, average load rate, integrated power, power in the same period, and line loss rate in the same period of the transmission line; When the research object is a distribution line, the visible indicator fields include: maximum load rate, average load rate, integrated power, power consumption in the same period, and line loss rate in the same period of the distribution line; When the research object is a distribution transformer, the visible indicator fields include: maximum load rate, average load rate, integrated power, synchronous power, and synchronous line loss rate of the distribution transformer.

[0044] Furthermore, if the research object satisfies: the maximum load rate belongs to [0,150%] and the average load rate belongs to [0,60%] and the maximum load rate > the average load rate, then the rationality of the indicators of the research object in the comprehensive evaluation system of data health is 100; otherwise, the rationality of the indicators of the research object in the comprehensive evaluation system of data health is 0.

[0045] It will be appreciated by those skilled in the art that embodiments of the present invention may be provided as methods, systems, or computer program products. Therefore, the present invention may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Furthermore, the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0046] The present invention is described with reference to flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to embodiments of the present invention. It should be understood that each process and / or block in the flowchart and / or block diagram, as well as the combination of processes and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0047] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0048] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0049] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the present invention can still be modified or replaced by equivalents. Any modification or equivalent replacement that does not depart from the spirit and scope of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. A power system health assessment method based on multivariate information, characterized in that: The method comprises: Obtain the index values ​​of each final evaluation index of the power system in the area to be evaluated in the comprehensive evaluation system of data health; Based on the index values ​​of the final-level evaluation indicators and the weights of the final-level evaluation indicators, a comprehensive evaluation value of the data health of the power system in the area to be evaluated is determined, and the comprehensive evaluation value of the data health of the power system in the area to be evaluated is a power system health evaluation result of the power system in the area to be evaluated.

2. The method according to claim 1, characterized in that The data health comprehensive evaluation system is a five-level evaluation system, the first-level indicator is the data health comprehensive evaluation value, and the second-level indicators include: power supply indicator, power grid indicator, user indicator, and energy storage indicator; The three-level indicators corresponding to the power supply indicators include: power supply three-level indicators; The three-level indicators corresponding to the power grid indicators include: substation indicators, transmission line indicators, distribution line indicators, and distribution transformer indicators; The three-level indicators corresponding to the user indicators include: high-voltage user indicators and business expansion user indicators; The three-level indicators corresponding to the energy storage index include: energy storage level 3 indicators; The four-level indicators corresponding to the three-level indicators of the power supply include: power plant file accuracy, unit file accuracy, grid-connected line file accuracy, power plant file completeness, power plant data map consistency, power plant measurement availability, power plant relationship penetration rate, and power plant indicator authenticity; The four-level indicators corresponding to the substation indicators include: substation file accuracy, transformer file accuracy, substation file completeness, substation data map consistency, substation measurement availability, substation relationship penetration rate, substation equipment project correlation rate, substation indicator authenticity, and transformer indicator authenticity; The four-level indicators corresponding to the transmission line indicators include: transmission line file accuracy, transmission line data map consistency, transmission line measurement availability, transmission line equipment project correlation rate, transmission line relationship penetration rate, and transmission line indicator authenticity; The four-level indicators corresponding to the distribution line indicators include: distribution line file accuracy, distribution line data map consistency, distribution line measurement availability, distribution line equipment project correlation rate, distribution line relationship penetration rate, and distribution line indicator authenticity; The four-level indicators corresponding to the distribution transformer indicators include: distribution transformer file accuracy, distribution transformer data map consistency, distribution transformer measurement availability, distribution transformer equipment project correlation rate, distribution transformer relationship penetration rate, and distribution transformer indicator authenticity; The four-level indicators corresponding to the high-voltage user indicators include: high-voltage user file accuracy, high-voltage user data map consistency, high-voltage user measurement availability, and high-voltage user relationship penetration rate; The four-level indicators corresponding to the business expansion user indicators include: business expansion user profile accuracy; The four-level indicators corresponding to the three-level energy storage indicators include: accuracy of new energy storage power station files, accuracy of grid-connected line files, consistency of new energy storage power station data charts, measurement availability of new energy storage power stations, and authenticity of new energy storage power station indicators; The five-level indicators corresponding to the accuracy of the power plant archives include: the standardization rate of power plant archives, the rationality rate of power plant archives; The five-level indicators corresponding to the unit file accuracy include: unit file standardization rate, converter file standardization rate, fan file standardization rate, and unit file rationality rate; The five-level indicators corresponding to the accuracy of the grid-connected line files include: grid-connected line file standardization rate, grid-connected line file rationality rate; The five-level indicators corresponding to the completeness of the power plant documents include: completeness of power plant documents; The five-level indicators corresponding to the consistency of the power plant data map include: consistency of the power plant data map; The five-level indicators corresponding to the power plant measurement availability include: power generation output measurement point configuration rate, power generation output data availability rate, online output measurement point configuration rate, online output data availability rate; The five-level indicators corresponding to the power plant relationship penetration rate include: power plant power consistency rate; The five-level indicators corresponding to the authenticity of the power plant indicators include: visibility of power plant indicators; The five-level indicators corresponding to the substation archive accuracy include: substation archive standardization rate, substation archive rationality rate; The five-level indicators corresponding to the transformer file accuracy include: transformer file standardization rate, transformer file rationality rate; The five-level indicators corresponding to the completeness of the substation documents include: completeness of substation documents; The five-level indicators corresponding to the substation digital map consistency include: substation digital map consistency; The five-level indicators corresponding to the substation measurement availability include: substation measurement point configuration rate, substation active power availability rate, and substation reactive power availability rate; The five-level indicators corresponding to the substation relationship penetration rate include: substation load consistency rate, substation power consistency rate, and substation interval consistency rate; The five-level indicators corresponding to the substation equipment project association rate include: substation equipment project association rate; The five-level indicators corresponding to the authenticity of the substation indicators include: visibility of substation indicators and rationality of substation indicators; The five-level indicators corresponding to the authenticity of the transformer indicators include: transformer indicator visibility, transformer indicator rationality; The five-level indicators corresponding to the accuracy of the transmission line archives include: transmission line archive standardization rate, transmission line archive rationality rate; The five-level indicators corresponding to the consistency of the transmission line number map include: consistency of the transmission line number map; The five-level indicators corresponding to the transmission line measurement availability include: transmission line measurement point configuration rate, transmission line active power availability rate, transmission line reactive power availability rate; The five-level indicators corresponding to the power transmission line equipment project correlation rate include: power transmission line equipment project correlation rate; The five-level indicators corresponding to the transmission line relationship penetration rate include: transmission line load consistency rate, transmission line power consistency rate; The five-level indicators corresponding to the authenticity of the transmission line indicators include: visibility of transmission line indicators, rationality of transmission line indicators; The five-level indicators corresponding to the accuracy of the distribution line archives include: the standardization rate of distribution line archives, the rationality rate of distribution line archives; The five-level indicators corresponding to the distribution line number map consistency include: distribution line number map consistency; The five-level indicators corresponding to the distribution line measurement availability include: distribution line measurement point configuration rate, distribution line active power availability rate, and distribution line reactive power availability rate; The five-level indicators corresponding to the distribution line equipment project correlation rate include: distribution line equipment project correlation rate; The five-level indicators corresponding to the distribution line relationship penetration rate include: distribution line load consistency rate, distribution line power consistency rate; The five-level indicators corresponding to the authenticity of the distribution line indicators include: visibility of distribution line indicators, rationality of distribution line indicators; The five-level indicators corresponding to the accuracy of the distribution transformer files include: the standardization rate of distribution transformer files, the rationality rate of distribution transformer files; The five-level indicators corresponding to the distribution transformer digital map consistency include: distribution transformer digital map consistency; The five-level indicators corresponding to the distribution transformer measurement availability include: distribution transformer measurement point configuration rate, distribution transformer active power availability rate, distribution transformer reactive power availability rate, and distribution transformer voltage availability rate; The five-level indicators corresponding to the distribution transformer equipment project correlation rate include: distribution transformer equipment project correlation rate; The five-level indicators corresponding to the distribution transformer relationship penetration rate include: distribution transformer power consistency rate; The five-level indicators corresponding to the authenticity of the distribution transformer indicators include: visibility of distribution transformer indicators, rationality of distribution transformer indicators; The five-level indicators corresponding to the accuracy of the high-voltage user files include: the standardization rate of high-voltage user files, the rationality rate of high-voltage user files; The five-level indicators corresponding to the high-voltage user number map consistency include: high-voltage user number map consistency; The five-level indicators corresponding to the high-voltage user measurement availability include: high-voltage user metering point configuration rate, high-voltage user active power availability rate; The five-level indicators corresponding to the high-voltage user relationship penetration rate include: user-device relationship completeness rate, high-voltage user power consistency rate; The five-level indicators corresponding to the accuracy of the business expansion user files include: business expansion user file standardization rate, business expansion user file rationality rate; The five-level indicators corresponding to the accuracy of the new energy storage power station archives include: the standardization rate of the new energy storage power station archives, the rationality rate of the new energy storage power station archives; The five-level indicators corresponding to the accuracy of the grid-connected line files include: grid-connected line file standardization rate, grid-connected line file rationality rate; The five-level indicators corresponding to the consistency of the new energy storage power station data map include: consistency of the new energy storage power station data map; The five-level indicators corresponding to the measurement availability of the new energy storage power station include: new energy storage power station measurement point configuration rate, new energy storage power station active power availability rate, new energy storage grid-connected line measurement availability rate, new energy storage grid-connected line active availability rate; The five-level indicators corresponding to the authenticity of the new energy storage power station indicators include: authenticity of the new energy storage power station indicators.

3. The method according to claim 2, characterized in that The calculation formula for the accuracy of the archives of the research object in the comprehensive evaluation system of data health is as follows: In the above formula, The accuracy of the files of the research object, The archival standardization of the research object, is the archive standardization weight of the research object, The rationality of the archives of the research object, The rationality weight of the archives of the research object.

4. The method according to claim 3, characterized in that The calculation formula of the archival standardization of the research object is as follows: The calculation formula of the file rationality of the research object is as follows: In the above formula, A is the number of fields whose attributes of the research object's files are maintained completely, B is the number of fields whose attributes of the research object's files should be complete, C is the number of fields whose attributes of the research object's files meet the rationality check, and D is the number of fields whose attributes of the research object's files should meet the rationality check.

5. The method according to claim 2, characterized in that The calculation formula for the file completeness of the research object in the data health comprehensive evaluation system is as follows: In the above formula, x WBX is the file completeness of the research object, E is the number of files actually uploaded by the research object, and F is the number of files that the research object should upload.

6. The method according to claim 2, characterized in that The calculation formula for the data graph consistency of the research object in the data health comprehensive evaluation system is as follows: In the above formula, x YZX is the number-graph consistency of the research object, Z is the number-graph consistency coefficient of the research object, if the research object can be found and correctly matched in the simplified graph, Z=1, otherwise, Z=0.

7. The method according to claim 2, characterized in that If the deviation between the integral power of the power plant's power generation output and the power generation of the power plant does not exceed 8%, the deviation between the integral power of the power plant's grid-connected output and the grid-connected power of the power plant does not exceed 8%, and the deviation between the grid-connected power of the power plant and the input power of the corresponding grid-connected line does not exceed 5%, then the power plant's power consistency rate is 100%, otherwise the power plant's power consistency rate is 0; If the difference between the sum of all incoming loads of the substation and the sum of the high-voltage side loads of all transformers does not exceed 5%, the difference between the sum of the high-voltage side loads of all transformers of the substation and the sum of the medium- and low-voltage side loads of all transformers does not exceed 5%, and the difference between the sum of the medium- and low-voltage side loads of all transformers of the substation and the sum of all outgoing loads of the substation does not exceed 5%, then the substation load consistency rate is 100%, otherwise the substation load consistency rate is 0; If the deviation between the substation integrated power and the power in the same period does not exceed 5%, the substation power consistency rate is 100%, otherwise the substation power consistency rate is 0; If the number of used bays on the high-voltage side of the substation is consistent with the number of incoming lines on the high-voltage side, the number of used bays on the medium-voltage side of the substation is consistent with the number of outgoing lines on the medium-voltage side, and the number of used bays on the low-voltage side of the substation is consistent with the number of outgoing lines on the low-voltage side, the substation bay consistency rate is 100, otherwise the substation bay consistency rate is 0; If the deviation between the load at the head end and the load at the end of the transmission line does not exceed 5%, the load consistency rate of the transmission line is 100%, otherwise the load consistency rate of the transmission line is 0; If the deviation between the integrated power of the transmission line and the power of the same period does not exceed 5%, the power consistency rate of the transmission line is 100%, otherwise the power consistency rate of the transmission line is 0; If the deviation between the sum of the loads of the distribution line and the distribution transformer at the same time does not exceed 8%, the load consistency rate of the distribution line is 100%, otherwise the load consistency rate of the distribution line is 0; If the deviation between the integrated power of the distribution line and the power of the same period does not exceed 5%, the power consistency rate of the distribution line is 100%, otherwise the power consistency rate of the distribution line is 0; If the deviation between the integrated power of the distribution transformer and the power of the same period does not exceed 5%, the power consistency rate of the distribution transformer is 100%, otherwise the power consistency rate of the distribution transformer is 0; If the active power measurement points of the power plant are fully configured, the power output measurement point configuration rate is 100, otherwise the power output measurement point configuration rate is 0; If the maximum output of the power plant / unit does not exceed 1.5 times the rated power of the power plant / unit and the active power measurement data of the power plant meets the following conditions: (number of available points for active data / number of measurement points*statistical duration*measurement frequency per hour)*100 is greater than 98%, then the power generation output data availability is 100%, otherwise the power generation output data availability is 0; If the active power measurement points of the power plant grid-connected line are fully configured, the online output measurement point configuration rate is 100%, otherwise the online output measurement point configuration rate is 0; If the active power measurement data of the power plant grid-connected line meets the following conditions: (number of available active power data points / number of measurement points*statistical duration*hourly measurement frequency)*100 is greater than 98%, and the maximum load does not exceed 1.5 times the line capacity, then the online output data availability is 100%, otherwise the online output data availability is 0; If the active / reactive measurement point configuration of the substation is complete and unique, the substation measurement point configuration rate is 100%, otherwise the substation measurement point configuration rate is 0; If the substation load does not exceed 1.5 times the rated capacity and the number of active data available points / number of measurement points*statistical duration*hourly measurement frequency)*100 is greater than 98%, the substation active power availability is 100%, otherwise, the substation active power availability is 0; If the substation load does not exceed 1.5 times the rated capacity and the number of reactive power data available points / number of measurement points*statistical duration*hourly measurement frequency)*100 is greater than 98%, the substation reactive power availability is 100%, otherwise, the substation reactive power availability is 0; If the active / reactive measurement points at both ends of the transmission line are configured completely and uniquely, the transmission line measurement point configuration rate is 100, otherwise the transmission line measurement point configuration rate is 0; If the maximum load of the transmission line does not exceed 1.5 times of the maximum transmission capacity and the transmission line measurement data meets the following conditions: (number of available points for active / reactive data / number of measurement points*statistical duration*hourly measurement frequency)*100 is greater than 98%, then the transmission line measurement data availability is 100%, otherwise the transmission line measurement data availability is 0; If the active / reactive measurement point configuration of the distribution line is complete and unique, the distribution line measurement point configuration rate is 100, otherwise the distribution line measurement point configuration rate is 0; If the active / reactive measurement data of the distribution line meets the following conditions: (number of available points for active / reactive data / number of measurement points*statistical duration*measurement frequency per hour)*100 is greater than 98% and the maximum load of the distribution line does not exceed 1.5 times the maximum transmission capacity, then the availability of the distribution line measurement data is 100%, otherwise the availability of the distribution line measurement data is 0; If the active / reactive / voltage measurement point configuration of the distribution transformer is complete and unique, the distribution transformer measurement point configuration rate is 100, otherwise the distribution transformer measurement point configuration rate is 0; If the maximum load of the distribution transformer does not exceed 1.5 times of the maximum transmission capacity and the distribution transformer measurement data meets the following conditions: (number of available points for active / reactive data / number of measurement points*statistical duration*measurement frequency per hour)*100 is greater than 98%, then the distribution transformer measurement data availability is 100%, otherwise the distribution transformer measurement data availability is 0.

8. The method according to claim 2, characterized in that The calculation formula for the indicator visibility of the research object in the data health comprehensive evaluation system is: X=P / Q*100%; Among them, X is the indicator visibility of the research object, P is the number of visible indicator fields of the research object, and Q is the total number of visible indicator fields of the research object; When the research object is a power plant, the visible indicator fields include: annual and monthly power generation, grid-connected power, and power consumption of the power plant; When the research object is a substation, the visible indicator fields include: substation maximum load rate, average load rate, integrated power, synchronous power, and synchronous line loss rate; When the research object is a transmission line, the visible indicator fields include: maximum load rate, average load rate, integrated power, power in the same period, and line loss rate in the same period of the transmission line; When the research object is a distribution line, the visible indicator fields include: maximum load rate, average load rate, integrated power, power consumption in the same period, and line loss rate in the same period of the distribution line; When the research object is a distribution transformer, the visible indicator fields include: maximum load rate, average load rate, integrated power, synchronous power, and synchronous line loss rate of the distribution transformer.

9. The method according to claim 2, characterized in that If the research object satisfies: the maximum load rate belongs to [0,150%] and the average load rate belongs to [0,60%] and the maximum load rate > the average load rate, then the rationality of the indicators of the research object in the comprehensive evaluation system of data health is 100, otherwise, the rationality of the indicators of the research object in the comprehensive evaluation system of data health is 0.

10. A power system health assessment device based on multivariate information, characterized in that: The device comprises: An acquisition module is used to obtain the index values ​​of each final evaluation index of the power system in the area to be evaluated in the comprehensive evaluation system of data health; An evaluation module is used to determine a comprehensive evaluation value of the data health of the power system in the area to be evaluated based on the index values ​​of the final-level evaluation indicators and the weights of the final-level evaluation indicators. The comprehensive evaluation value of the data health of the power system in the area to be evaluated is the power system health evaluation result of the power system in the area to be evaluated.

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