Remote operation and maintenance health management system and health assessment method for power distribution station

Abstract

The invention relates to the technical field of electric power distribution station management, and discloses an electric power distribution station remote operation and maintenance health management system and a health assessment method, the system comprises an acquisition end and a server, the acquisition end comprises a sensor unit and an RFID tag, and the server comprises a database, a data analysis unit, a health determination unit and an early warning prompt unit; comprehensive health condition evaluation is carried out on the power unit from four aspects of basic information, operation state, equipment maintenance and fault recording, a health degree comprehensive index is calculated, and the service life of the power unit can be prolonged through timely maintenance and fault processing; by continuously monitoring and managing the health condition of the equipment, effective measures can be taken to protect the equipment and reduce the loss and failure rate of the equipment, so that the service life of the equipment is prolonged, and the updating cost of the equipment is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of power distribution station management, and in particular to a remote operation and maintenance health management system and a health assessment method for a power distribution station. Background Art

[0002] With the continuous development of the power industry, power distribution stations play a vital role in the power system. Power distribution stations contain many power units, and the stable operation of these power units is directly related to the reliability and safety of power supply. However, there are some problems with the traditional operation and maintenance management of power distribution stations.

[0003] On the one hand, the operating status monitoring of each power unit in the distribution station mainly relies on manual inspection, which is not only inefficient, but also difficult to grasp the operating status of the power unit in real time and comprehensively. On the other hand, there is a lack of scientific and systematic methods for evaluating the health status of the power unit. Often, maintenance can only be carried out after the equipment fails, and potential problems of the equipment cannot be predicted in advance, resulting in high maintenance costs and long power outages, affecting the stability of power supply. In addition, with the continuous advancement of information technology, remote operation and maintenance management has become possible. Through communication technology, remote monitoring and control of power units in distribution stations can be achieved to improve operation and maintenance efficiency. However, there is currently a lack of an effective remote operation and maintenance health management system for power distribution stations that can comprehensively consider the operating status data and basic information of power units, accurately evaluate the health status of power units and display early warnings to ensure the safe and stable operation of power distribution stations.

[0004] In summary, in order to solve the shortcomings of traditional power distribution station operation and maintenance management methods and improve the operation and maintenance efficiency and reliability of power distribution stations, there is an urgent need for a power distribution station remote operation and maintenance health management system and evaluation method. Summary of the invention

[0005] The purpose of the present invention is to provide a remote operation and maintenance health management system and a health assessment method for a power distribution station, which solves the technical problems raised in the background technology.

[0006] The purpose of the present invention can be achieved through the following technical solutions:

[0007] A remote operation and maintenance health management system for a power distribution station, comprising a collection terminal and a server connected in communication via a communication module;

[0008] The acquisition terminal is used to collect the operating status data and basic information of each power unit in the distribution station and transmit the data to the server;

[0009] The communication module is used to transmit the results collected by the sensor to the server;

[0010] The server is used to store and analyze the collected data, evaluate the health status of each power unit in the distribution station, and display early warnings based on their health status.

[0011] As a further solution of the present invention: the acquisition end includes a sensor unit and an RFID tag;

[0012] The sensor unit is used to collect the operating status data of each power unit in the power distribution station, and the operating status data includes but is not limited to voltage, current, power, temperature, and humidity;

[0013] The RFID tag is used to store basic information of each power unit in the distribution station, including but not limited to equipment name, model, manufacturer, installation date, service life, maintenance cycle, number of failures, and maintenance date;

[0014] The service life refers to the period of time during which each power unit in the distribution station can be safely used;

[0015] The maintenance cycle refers to the time span for carrying out maintenance work on each power unit in the distribution station.

[0016] As a further solution of the present invention: the server includes a database, a data analysis unit, a health determination unit and an early warning prompt unit:

[0017] The database is used to store various data of each power unit in the distribution station;

[0018] The data analysis unit is used to evaluate the health status of each power unit in the distribution station based on the operating status data and basic information of each power unit, and obtain a comprehensive health index of the power unit;

[0019] The health determination unit is used to determine the health of each power unit in the distribution station based on the comprehensive health index of each power unit;

[0020] The early warning prompt unit is used to display the health status of the relevant power units to the management personnel in an intuitive manner.

[0021] As a further solution of the present invention: the health status assessment method is as follows:

[0022] Step 1: Basic information health analysis of power units

[0023] Step 1.1, obtain the installation date and service life of the power unit;

[0024] Step 1.2, simultaneously obtain the current time, and calculate the usage time of the power unit based on the current time and installation date;

[0025] Step1.3, then pass:

[0026] Basic information health = 1-(duration of use / service life)

[0027] Calculate the basic information health of the power unit and mark it as JK1;

[0028] Step 2: Analysis of the operating status and health of power units

[0029] Step 2.1, when the power unit is in normal operation, obtain multiple normal operation parameters corresponding to the voltage, current, power, temperature and humidity of the power unit respectively;

[0030] Taking voltage as an example, multiple normal operating parameters corresponding to the voltage are obtained, and the corresponding average value is calculated, and then the value is recorded as the standard voltage U0;

[0031] According to the calculation method of U0, the standard current L0, standard power P0, standard temperature W0, and standard humidity S0 corresponding to current, power, temperature, and humidity are obtained respectively;

[0032] Step 2.2, under the actual operation state of the power unit, obtain the actual operation parameters corresponding to n current, power, temperature and humidity from the n acquisition nodes pre-divided in the specified period, and mark them as U i , L i , P i , W i , S i , where i = 1, 2, ... n;

[0033] Step 2.3, then from all U i , L i , P i , W i , S i In the example, get the corresponding minimum and maximum values, and mark them as: U min and U max , L min and L max , P min and P max , W min and W max , S min and S max ;

[0034] Step 2.4, through:

[0035]

[0036] Calculate the operating health of the power unit JK2;

[0037] Step 3: Equipment maintenance health analysis of power units

[0038] Step 3.1, obtain the maintenance cycle and last maintenance date of the power unit;

[0039] Step 3.2, simultaneously obtain the current time, and calculate the maintenance interval of the power unit based on the current time and the last maintenance date;

[0040] Step 3.3, then pass:

[0041] Equipment maintenance health = 1-(maintenance interval / maintenance cycle)

[0042] Calculate the equipment maintenance health of the power unit and mark it as JK3;

[0043] Step 4: Fault record health analysis of power units

[0044] Step 4.1, obtain the installation date and fault number of the power unit;

[0045] Step 4.2, simultaneously obtain the current time, and calculate the usage time of the power unit based on the current time and installation date;

[0046] Step 4.3, then pass:

[0047] Fault record health = 1-(number of faults / duration in use)

[0048] Calculate the fault record health of the power unit and mark it as JK4;

[0049] Step 5: Comprehensive analysis of the health status of power units

[0050] Step 5.1, extract the basic information health of the power unit JK1, operation status health JK2, equipment maintenance health JK3, fault record health JK4;

[0051] Step 5.2, through:

[0052] K=JK1×α1+JK2×α2+JK3×α3+JK4×α4

[0053] Calculate the comprehensive health index K of the power unit;

[0054] Among them, α1, α2, α3, and α4 are corresponding preset weight coefficients.

[0055] As a further solution of the present invention: the health status of the power unit is determined as follows:

[0056] Compare the comprehensive health indicators of each power unit in the distribution station with the preset indicator threshold set:

[0057] Among them, the indicator threshold set is [H1, H2, H3], and H1<H2<H3;

[0058] If K < H1, it means that the health of the relevant power unit is poor;

[0059] If H1≤K<H2, it means that the health of the relevant power unit is average;

[0060] If H2≤K<H3, it means that the health of the relevant power unit is good;

[0061] If K ≥ H3, it means that the health level of the relevant power unit is excellent.

[0062] As a further embodiment of the present invention:

[0063] If the health of the relevant power unit is poor, the relevant power unit will be displayed to the management personnel in the form of red flashing lights, achieving a serious warning;

[0064] If the health level of the relevant power unit is average, the relevant power unit will be displayed to the management personnel in the form of a solid red light, achieving an intermediate warning;

[0065] If the health of the relevant power unit is good, the relevant power unit will be displayed to the management personnel in the form of green flashing lights to achieve low-level warning;

[0066] If the health status of the relevant power units is good, the relevant power units will be displayed to the management personnel in the form of a constant green light, and no early warning will be implemented.

[0067] A method for evaluating the health of a power distribution station remote operation and maintenance, which is implemented by a power distribution station remote operation and maintenance health management system, comprises the following steps:

[0068] Step 1: Information Collection

[0069] Collect the operating status data of each power unit in the distribution station through the sensor unit, and obtain the basic information of the relevant power unit stored in the RFID tag;

[0070] Step 2: Information Transmission

[0071] The operating status data and basic information of each power unit in the distribution station are collected and transmitted to the server through the communication module;

[0072] Step 3: Information Analysis

[0073] Evaluate the health status of each power unit based on the operating status data and basic information of each power unit in the distribution station, and obtain the comprehensive health index of each power unit;

[0074] Step 4: Health Assessment

[0075] The health status of each power unit in the distribution station is determined based on the comprehensive health indicators of each power unit.

[0076] Beneficial effects of the present invention:

[0077] The present invention combines sensor technology, RFID technology with communication modules and servers to achieve remote operation and health management of power distribution stations. The sensor unit collects the operating status data of the power unit, the RFID tag stores basic information, the communication module ensures the remote transmission of data, and the server performs storage, analysis and early warning display, providing an innovative solution for the intelligent management of power distribution stations.

[0078] The present invention conducts a comprehensive health assessment of the power unit from four aspects: basic information, operating status, equipment maintenance and fault records, and calculates a comprehensive health index. This multi-dimensional assessment method can more accurately reflect the actual health status of the power unit and provide a more reliable basis for operation and maintenance decisions.

[0079] The present invention has a clear calculation method for each evaluation dimension. For example, the basic information health is calculated by the relationship between the usage time and the service life; the operation status health is calculated by comparing the actual operation parameters with the standard parameters; the equipment maintenance health is determined based on the relationship between the maintenance interval and the maintenance cycle; the fault record health considers the ratio of the number of faults to the usage time. These algorithms are scientific and reasonable, and can objectively reflect the health status of power units in different aspects.

[0080] The present invention, the remote operation and maintenance health management system can collect and transmit the data of the power unit in real time, and the management personnel can understand the operation status and health status of the equipment without going to the site in person. This greatly improves the operation and maintenance efficiency and reduces the manpower cost and time cost.

[0081] The present invention can detect potential problems and failure risks in advance by evaluating and early warning the health status of power units. Managers can take timely measures to maintain and repair equipment to avoid equipment failures, thereby improving the reliability and stability of power distribution stations.

[0082] The present invention can accurately grasp the maintenance cycle and maintenance interval of the power unit based on the analysis of the equipment maintenance health, which helps to optimize the maintenance plan, reasonably arrange maintenance resources, and improve the pertinence and effectiveness of maintenance work.

[0083] The present invention can prolong the service life of the power unit through timely maintenance and fault handling. Through continuous monitoring and management of the health status of the equipment, effective measures can be taken to protect the equipment, reduce the loss and failure rate of the equipment, thereby prolonging the service life of the equipment and reducing the cost of equipment renewal.

[0084] In the present invention, the early warning prompt unit displays the health status of the power unit to the management personnel in an intuitive manner. Different health statuses are illuminated in different ways, such as flashing red for poor health, constant red for fair health, flashing green for good health, and constant green for excellent health. This intuitive display method facilitates management personnel to quickly understand the health status of the equipment and make timely decisions.

[0085] In the present invention, the database of the server can store various data of each power unit in the distribution station, and the data analysis unit can conduct in-depth analysis of these data. This provides managers with rich historical data and analysis reports, which helps them understand the operation trend and health status changes of the equipment and provides a reference for formulating long-term operation and maintenance strategies.

[0086] In summary, the remote operation and maintenance health management system and evaluation method of the power distribution station of the present invention have many advantages such as technological innovation, high practical application value and convenient management, and can provide strong guarantee for the safe and stable operation of the power distribution station. BRIEF DESCRIPTION OF THE DRAWINGS

[0087] The present invention will be further described below in conjunction with the accompanying drawings.

[0088] Figure 1 The present invention is a system block diagram of a remote operation and maintenance health management system and a health assessment method for a power distribution station.

[0089] Figure 2 It is a flow chart of a health management system and a health assessment method for remote operation and maintenance of a power distribution station according to the present invention. DETAILED DESCRIPTION

[0090] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only 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.

[0091] See also Figure 1 As shown, the present invention is a remote operation and maintenance health management system for a power distribution station, comprising:

[0092] The collection end is used to collect the operating status data and basic information of each power unit in the distribution station and transmit the data to the server;

[0093] The collection end includes:

[0094] A sensor unit is used to collect operating status data of each power unit in the distribution station, including but not limited to voltage, current, power, temperature, and humidity;

[0095] RFID tags are used to store basic information of each power unit in the distribution station, including but not limited to equipment name, model, manufacturer, installation date, service life, maintenance cycle, number of failures, and maintenance date;

[0096] The service life refers to the period of time during which each power unit in the distribution station can be safely used;

[0097] The maintenance cycle refers to the time span for carrying out maintenance work on each power unit in the distribution station;

[0098] A communication module, used to transmit the operating status data collected by the sensor unit and the basic information read from the RFID tag to the server;

[0099] The server is used to store and analyze the collected data, evaluate the health status of each power unit in the distribution station, and display early warnings based on their health status;

[0100] The server includes:

[0101] Database, used to store various data of each power unit in the distribution station;

[0102] A data analysis unit is used to evaluate the health status of each power unit in the distribution station based on the operating status data and basic information of each power unit;

[0103] Health status is assessed as follows:

[0104] Step 1: Basic information health analysis of power units

[0105] Step 1.1, obtain the installation date and service life of the power unit;

[0106] Step 1.2, simultaneously obtain the current time, and calculate the usage time of the power unit based on the current time and installation date;

[0107] Step1.3, then pass:

[0108] Basic information health = 1-(duration of use / service life)

[0109] Calculate the basic information health of the power unit and mark it as JK1;

[0110] Step 2: Analysis of the operating status and health of power units

[0111] Step 2.1, when the power unit is in normal operation, obtain multiple normal operation parameters corresponding to the voltage, current, power, temperature and humidity of the power unit respectively;

[0112] Taking voltage as an example, multiple normal operating parameters corresponding to the voltage are obtained, and the corresponding average value is calculated, and then the value is recorded as the standard voltage U0;

[0113] According to the calculation method of U0, the standard current L0, standard power P0, standard temperature W0, and standard humidity S0 corresponding to current, power, temperature, and humidity are obtained respectively;

[0114] Step 2.2, under the actual operation state of the power unit, obtain the actual operation parameters corresponding to n current, power, temperature and humidity from the n acquisition nodes pre-divided in the specified period, and mark them as U i , L i , P i , W i , S i , where i = 1, 2, ... n;

[0115] Step 2.3, then from all U i , L i , P i , W i , S i In the example, get the corresponding minimum and maximum values, and mark them as: U min and U max , L min and L max , P min and P max , W min and W max , S min and S max ;

[0116] Step 2.4, through:

[0117]

[0118] Calculate the operating health of the power unit JK2;

[0119] Step 3: Equipment maintenance health analysis of power units

[0120] Step 3.1, obtain the maintenance cycle and last maintenance date of the power unit;

[0121] Step 3.2, simultaneously obtain the current time, and calculate the maintenance interval of the power unit based on the current time and the last maintenance date;

[0122] Step 3.3, then pass:

[0123] Equipment maintenance health = 1-(maintenance interval / maintenance cycle)

[0124] Calculate the equipment maintenance health of the power unit and mark it as JK3;

[0125] Step 4: Fault record health analysis of power units

[0126] Step 4.1, obtain the installation date and fault number of the power unit;

[0127] Step 4.2, simultaneously obtain the current time, and calculate the usage time of the power unit based on the current time and installation date;

[0128] Step 4.3, then pass:

[0129] Fault record health = 1-(number of faults / duration in use)

[0130] Calculate the fault record health of the power unit and mark it as JK4;

[0131] Step 5: Comprehensive analysis of the health status of power units

[0132] Step 5.1, extract the basic information health of the power unit JK1, operation status health JK2, equipment maintenance health JK3, fault record health JK4;

[0133] Step 5.2, through:

[0134] K=JK1×α1+JK2×α2+JK3×α3+JK4×α4

[0135] Calculate the comprehensive health index K of the power unit;

[0136] Among them, α1, α2, α3, and α4 are corresponding preset weight coefficients;

[0137] A health determination unit is used to determine the health status of each power unit in the distribution station based on the comprehensive health indicators of each power unit;

[0138] The specific method is as follows:

[0139] Compare the comprehensive health indicators of each power unit in the distribution station with the preset indicator threshold set:

[0140] Among them, the indicator threshold set is [H1, H2, H3], and H1<H2<H3;

[0141] If K < H1, it means that the health of the relevant power unit is poor;

[0142] If H1≤K<H2, it means that the health of the relevant power unit is average;

[0143] If H2≤K<H3, it means that the health of the relevant power unit is good;

[0144] If K ≥ H3, it means that the health of the relevant power unit is excellent;

[0145] The early warning prompt unit is used to display the health status of relevant power units to managers in an intuitive way;

[0146] In this example:

[0147] If the health of the relevant power unit is poor, the relevant power unit will be displayed to the management personnel in the form of red flashing lights, achieving a serious warning;

[0148] If the health level of the relevant power unit is average, the relevant power unit will be displayed to the management personnel in the form of a solid red light, achieving an intermediate warning;

[0149] If the health of the relevant power unit is good, the relevant power unit will be displayed to the management personnel in the form of green flashing lights to achieve low-level warning;

[0150] If the health status of the relevant power units is good, the relevant power units will be displayed to the management personnel in the form of a constant green light, and no early warning will be implemented.

[0151] The remote operation and maintenance health management system for power distribution stations in this embodiment has many comprehensive advantages. First, in terms of data collection, the collection end uses sensor units and RFID tags to collect the operating status data and basic information of each power unit in the distribution station, including voltage, current and other operating data and rich basic information such as equipment name, providing a solid foundation for accurate assessment of health status. Secondly, the health assessment is scientific and reasonable. The basic information health is obtained by calculating the relationship between the length of use and the service life; the operating status health is obtained by comparing the actual and standard parameters; the equipment maintenance health is obtained by considering the maintenance cycle and the last maintenance date; the fault record health is obtained by combining the length of use and the number of faults. Then, the above four healths are integrated through the preset weight coefficient to obtain a comprehensive index, which provides a scientific basis for determining the health level. Finally, the early warning display is intuitive and efficient. According to the comprehensive indicators, the health level of the power unit is divided into four levels: poor, general, good, and excellent, and displayed to the management personnel in different colors and lighting modes, so that they can quickly understand the health status of the equipment and take corresponding measures to improve the efficiency and pertinence of operation and maintenance management. In summary, the system has comprehensive data, scientific assessment, and intuitive early warning, which can effectively improve the operation and maintenance management level of power distribution stations and ensure the safe and stable operation of the power system.

[0152] See also Figure 2 As shown, the present invention also provides a method for remote operation and maintenance health assessment of a power distribution station, which is implemented by a remote operation and maintenance health management system for a power distribution station, and the method includes the following steps:

[0153] Step 1: Information Collection

[0154] Collect the operating status data of each power unit in the distribution station through the sensor unit, and obtain the basic information of the relevant power unit stored in the RFID tag;

[0155] The operating status data includes but is not limited to voltage, current, power, temperature, and humidity; the basic information includes but is not limited to the equipment name, model, manufacturer, installation date, service life, maintenance cycle, number of failures, and maintenance date;

[0156] Step 2: Information Transmission

[0157] The operating status data and basic information of each power unit in the distribution station are collected and transmitted to the server through the communication module;

[0158] Step 3: Information Analysis

[0159] Evaluate the health status of each power unit based on the operating status data and basic information of each power unit in the distribution station, and obtain the comprehensive health index of each power unit;

[0160] Step 4: Health Assessment

[0161] Determine the health status of each power unit based on the comprehensive health indicators of each power unit in the distribution station;

[0162] The above formulas are all dimensionless and numerical calculations. The formula is a formula for the most recent real situation obtained by collecting a large amount of data and performing software simulation. The preset parameters and thresholds in the formula are set by technicians in this field according to actual conditions.

[0163] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A remote operation and maintenance health management system for power distribution stations, characterized in that: include: The collection end is used to collect the operating status data and basic information of each power unit in the distribution station and transmit the data to the server; A communication module, used to transmit the results collected by the sensor to the server; The server is used to store and analyze the collected data, evaluate the health status of each power unit in the distribution station, and display early warnings based on their health status.

2. A remote operation and maintenance health management system for power distribution stations according to claim 1, characterized in that: The acquisition end includes a sensor unit and an RFID tag; The sensor unit is used to collect the operating status data of each power unit in the power distribution station, and the operating status data includes but is not limited to voltage, current, power, temperature, and humidity; The RFID tag is used to store basic information of each power unit in the distribution station, including but not limited to the installation date, service life, maintenance cycle, number of failures, and maintenance date of the equipment; The service life refers to the period of time during which each power unit in the distribution station can be safely used; The maintenance cycle refers to the time span for carrying out maintenance work on each power unit in the distribution station.

3. A remote operation and maintenance health management system for power distribution stations according to claim 1, characterized in that: The server includes a database, a data analysis unit, a health determination unit and an early warning prompt unit: The database is used to store various data of each power unit in the distribution station; The data analysis unit is used to evaluate the health status of each power unit in the distribution station based on the operating status data and basic information of each power unit, and obtain a comprehensive health index of the power unit; The health determination unit is used to determine the health of each power unit in the distribution station based on the comprehensive health index of each power unit; The early warning prompt unit is used to display the health status of the relevant power units to the management personnel in an intuitive manner.

4. A remote operation and maintenance health management system for power distribution stations according to claim 3, characterized in that: Health status is assessed as follows: The first step is to calculate the basic information health of the power unit, the operation status health JK2, the equipment maintenance health JK3, and the fault record health JK4 based on the operation status data and basic information of the power unit; Step 2: Pass: K＝JK 1 ×α 1 +JK 2 ×α 2 +JK 3 ×α 3 +JK 4 ×α 4. Calculate the comprehensive health index K of the power unit; Among them, JK1 is the basic information health of the power unit, JK2 is the operating status health of the power unit, JK3 is the equipment maintenance health of the power unit, and JK4 is the fault record health of the power unit. α1, α2, α3, and α4 are the corresponding preset weight coefficients; The third step is to compare the comprehensive health index of each power unit in the distribution station with the preset index threshold set: Among them, the indicator threshold set is [H1, H2, H3], and H1<H2<H3; If K < H1, it means that the health of the relevant power unit is poor; If H1≤K<H2, it means that the health of the relevant power unit is average; If H2≤K<H3, it means that the health of the relevant power unit is good; If K ≥ H3, it means that the health level of the relevant power unit is excellent.

5. A remote operation and maintenance health management system for power distribution stations according to claim 4, characterized in that: The calculation method of the basic information health of the power unit is as follows: Step 1.1, obtain the installation date and service life of the power unit; Step 1.2, simultaneously obtain the current time, and calculate the usage time of the power unit based on the current time and installation date; Step1.3, then pass: Basic information health = 1-(duration of use / service life) The basic information health of the power unit is calculated and marked as JK1.

6. A remote operation and maintenance health management system for power distribution stations according to claim 4, characterized in that: The calculation method of the operating status health of the power unit is as follows: Step 2.1, when the power unit is in normal operation, obtain multiple normal operation parameters corresponding to the voltage, current, power, temperature and humidity of the power unit respectively; Taking voltage as an example, multiple normal operating parameters corresponding to the voltage are obtained, and the corresponding average value is calculated, and then the value is recorded as the standard voltage U0; According to the calculation method of U0, the standard current L0, standard power P0, standard temperature W0, and standard humidity S0 corresponding to current, power, temperature, and humidity are obtained respectively; Step 2.2, under the actual operation state of the power unit, obtain the actual operation parameters corresponding to n current, power, temperature and humidity from the n acquisition nodes pre-divided in the specified period, and mark them as U i , L i , P i , W i , S i , where i = 1, 2, ... n; Step 2.3, then from all U i , L i , P i , W i , S i In the example, get the corresponding minimum and maximum values, and mark them as: U min and U max , L min and L max , P min and P max , W min and W max , S min and S max ; Step 2.4, through: Calculate the operating health status JK2 of the power unit.

7. A remote operation and maintenance health management system for power distribution stations according to claim 4, characterized in that: The calculation method of equipment maintenance health of power units is as follows: Step 3.1, obtain the maintenance cycle and last maintenance date of the power unit; Step 3.2, simultaneously obtain the current time, and calculate the maintenance interval of the power unit based on the current time and the last maintenance date; Step 3.3, then pass: Equipment maintenance health = 1-(maintenance interval / maintenance cycle) The equipment maintenance health of the power unit is calculated and marked as JK3.

8. A remote operation and maintenance health management system for power distribution stations according to claim 4, characterized in that: The calculation method of the fault record health of the power unit is as follows: Step 4.1, obtain the installation date and fault number of the power unit; Step 4.2, simultaneously obtain the current time, and calculate the usage time of the power unit based on the current time and installation date; Step 4.3, then pass: Fault record health = 1-(number of faults / duration in use) The fault record health of the power unit is calculated and marked as JK4.

9. A remote operation and maintenance health management system for power distribution stations according to claim 3, characterized in that: The display method of the early warning prompt unit is as follows: If the health of the relevant power unit is poor, the relevant power unit will be displayed to the management personnel in the form of red flashing lights, achieving a serious warning; If the health level of the relevant power unit is average, the relevant power unit will be displayed to the management personnel in the form of a solid red light, achieving an intermediate warning; If the health of the relevant power unit is good, the relevant power unit will be displayed to the management personnel in the form of green flashing lights to achieve low-level warning; If the health status of the relevant power units is good, the relevant power units will be displayed to the management personnel in the form of a constant green light, and no early warning will be implemented.

10. A method for evaluating the health of a power distribution station remote operation and maintenance, the method being implemented by a power distribution station remote operation and maintenance health management system according to any one of claims 1 to 9, characterized in that: The method comprises the following steps: Step 1: Information Collection Collect the operating status data of each power unit in the distribution station through the sensor unit, and obtain the basic information of the relevant power unit stored in the RFID tag; Step 2: Information Transmission The operating status data and basic information of each power unit in the distribution station are collected and transmitted to the server through the communication module; Step 3: Information Analysis Evaluate the health status of each power unit based on the operating status data and basic information of each power unit in the distribution station, and obtain the comprehensive health index of each power unit; Step 4: Health Assessment The health status of each power unit in the distribution station is determined based on the comprehensive health indicators of each power unit.

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