Integrated substation environmental control system based on the Internet of Things

Abstract

The present invention relates to the technical field of substations, and specifically to an integrated substation environment control system based on the Internet of Things; the system comprises: a database, a dynamic analysis module and an adaptive control module; the system dynamically monitors and analyzes the environmental status of each monitoring area in the substation to determine the demand for environmental regulation, thereby improving the environmental monitoring accuracy of the substation and providing technical support for adaptive control of the substation environment control; the system automatically obtains the operation log of each device in the monitoring area, and dynamically adjusts the environmental control parameters of the substation based on the evaluation of the operation parameters and fault records to adapt to the constantly changing working environment and equipment status, thereby ensuring that the equipment operates under the most suitable environmental conditions, improving the efficiency and life of the equipment, reducing energy waste and realizing automated environmental regulation, thereby improving the safety and reliability of the equipment, reducing the demand for human intervention, and enhancing the automation and intelligence level of the system.

Description

Technical Field

[0001] The present invention relates to the technical field of substations, and in particular to an integrated substation environment control system based on the Internet of Things. Background Art

[0002] Substations are a vital component of the power system, responsible for the transmission, conversion and distribution of electric energy. A good control environment can protect the internal equipment of the century-old power station from the influence of harsh environments, such as high temperature, humidity, chemical corrosion, etc. Therefore, it is very necessary for substations to carry out environmental control.

[0003] At present, the environmental control of substations is mainly carried out through air conditioning, ventilation system and cooling system as well as temperature sensor monitoring and feedback. Usually, the temperature, humidity, etc. are controlled based on a fixed cycle. This control method is single and lacks intelligent algorithms and adaptability. It is impossible to adjust the control strategy in real time according to historical data and environmental changes, resulting in low efficiency or energy waste. Moreover, the current regulation of substations usually relies on manual control, which can easily lead to excessive or inadequate environmental control, resulting in energy waste or increased equipment safety risks. Summary of the invention

[0004] The purpose of the present invention is to provide an integrated substation environment control system based on the Internet of Things to solve the problems mentioned in the above background technology.

[0005] The object of the present invention can be achieved by the following technical solutions: An integrated substation environment control system based on the Internet of Things, comprising: a database, a dynamic analysis module and an adaptive control module;

[0006] The substation is divided into several monitoring areas, each of which is equipped with sensors; the database communicates with the sensors in each monitoring area to obtain the environmental parameters of each area, including temperature, humidity and air pressure;

[0007] The dynamic analysis module identifies and determines the degree of matching between the environmental parameters and the equipment, and generates environmental control instructions based on them and sends them to the adaptive control module;

[0008] The adaptive control module performs environmental control in each monitoring area according to the received environmental control instructions. The specific steps of the control are:

[0009] Step 1: Obtain the operation log of each device in the monitoring area, where the operation log includes operation parameters and fault records; the operation parameters include operation temperature and operation power; the fault record includes the number of faults and the fault time corresponding to each fault; perform operation status analysis based on the operation parameters of the equipment to obtain the operation risk value;

[0010] Step 2: Perform a comprehensive analysis of the impact and frequency of equipment failures based on equipment failure records to obtain a failure risk value;

[0011] Step 3: Substitute the operation risk value Yd and the fault risk value Zf into the set formula YZ=f5×Yd+f6×Zf to calculate the equipment risk index YZ, where f5 and f6 are respectively the set proportional coefficients; when the equipment risk index is greater than the set risk threshold, the equipment is marked as a risky equipment, the number of risky equipment in each monitoring area is counted, and the equipment risk index corresponding to each risky equipment is summed to obtain the total risk value; substitute the number of risky equipment F1 and the total risk value F2 into the set formula Ff=f7×F1+f8×F2 to calculate the environmental demand index Ff, where f7 and f8 are respectively the set proportional coefficients; send the environmental demand index to the dynamic analysis module;

[0012] Step 4: Retrieve the environmental parameters corresponding to the current moment, including temperature T, humidity S and air pressure Q; use the set formula group Calculate and obtain the temperature control interval, humidity control interval and air pressure control interval respectively, wherein are the set proportional coefficients respectively; record the temperature control interval M1, humidity control interval M2 and air pressure control interval M3 as control parameters, wherein r1, r2, r3, r4, r5, r6, r7, r8 and r9 are the set proportional coefficients respectively, α is the set temperature frequency conversion coefficient, β is the set humidity frequency conversion coefficient, and δ is the set pressure frequency conversion coefficient;

[0013] Step 5: Adjust according to the control parameters. The specific adjustment method is: the duration of each interval M1, M2 and M3 is used to compare whether the real-time environmental parameters are consistent with the standard environmental parameters. If they are inconsistent, the temperature, humidity and air pressure are adjusted respectively to make them consistent with the environmental standard parameters; if they are consistent, the current control parameters are maintained; the standard environmental parameters include standard temperature range, standard humidity range and standard air pressure range.

[0014] Preferably, the specific process of performing operation status analysis based on the operation parameters of the equipment is:

[0015] Retrieve the operating temperature and operating power corresponding to each acquisition moment, and record them as Aj and Cj respectively; set each device to correspond to a standard operating parameter, where the standard operating parameters include standard operating temperature and rated operating power, and record them as UA and UC respectively; use the set formula Calculate and obtain the equipment operation value ACj, where d1 and d2 are respectively the set proportional coefficients; draw a curve relationship diagram of the equipment operation value changing with time with time as the horizontal coordinate and the operation value as the vertical coordinate; draw a tangent line at the operation point, calculate the slope of the tangent line to obtain the operation slope corresponding to each operation point; sum up the operation slopes greater than zero to obtain the operation unit increase value, and sum up the operation slopes less than zero and take the absolute value to calculate the operation unit decrease value;

[0016] Substitute the running slope Xi, running single value increase Y1 and running single value decrease Y2 into the set formula The operation risk value Yd is calculated, where d3 and d4 are the set proportional coefficients. is the mean operating slope of each operating point.

[0017] Preferably, the specific process of comprehensively analyzing the impact degree and frequency of equipment failures based on equipment failure records is as follows:

[0018] Retrieve the fault records of the equipment, where the fault records include the number of faults and the fault start time and fault end time corresponding to each fault, and calculate the time difference between the fault start time and the fault end time corresponding to each fault to obtain the fault duration corresponding to each fault; use the fault end time of each fault as the fault time of each fault, and calculate the time difference between it and the current time of the system to obtain the fault-related duration; substitute the fault duration Z1 and the fault-related duration Z2 into the set formula The fault impact value Zd is calculated, where d5 and d6 are the set proportional coefficients respectively. The fault impact value corresponding to each fault can be obtained, and the fault impact mean is calculated and recorded as

[0019] The time difference between the start and end of two adjacent faults is calculated to obtain the fault interval between the two adjacent faults; the fault interval is compared with the set time interval to divide the fault interval into long interval faults, medium interval faults and short interval faults, the cumulative number of long interval faults, medium interval faults and short interval faults is counted, and the average of each fault interval is calculated to obtain the fault interval mean;

[0020] Substitute the cumulative number of long-interval faults Z3, the cumulative number of medium-interval faults Z4, the cumulative number of short-interval faults Z5, the mean fault interval Z6 and the mean fault impact Zd into the set formula The fault risk value Zf is calculated, where f1, f2, f3, and f4 are respectively set proportional coefficients.

[0021] Preferably, the steps for generating the environment control instruction are specifically as follows:

[0022] 401: randomly select one of the monitoring areas, retrieve the environmental parameters corresponding to each collection time, and record them as Ti, Si and Qi respectively; where i = 1, 2, 3 ... I, I is a positive integer, I represents the total number of collection times, and i represents the sequence number of any collection time;

[0023] 402: each monitoring area is assumed to have an environmental standard parameter, wherein the environmental standard parameter includes a standard temperature range, a standard humidity range, and a standard air pressure range; the environmental parameter at each collection time is compared with the environmental standard parameter to obtain a reference temperature, a reference humidity, and a reference air pressure, which are recorded as BT, BS, and BQ, respectively;

[0024] 403: Ti, Si, Qi, BT, BS and BQ are converted into

[0025] The environmental matching value Pa is calculated, where a1, a2, and a3 are respectively the set proportional coefficients; thus, the environmental matching value corresponding to each acquisition time is recorded as Pa i;

[0026] 404: plotting the relationship between the environmental matching value and the time curve with time as the horizontal coordinate and the environmental matching value as the vertical coordinate; drawing a tangent line of the curve at the matching point, obtaining the tangent line expression by data fitting, and calculating the derivative of the tangent line to obtain the matching derivative Wi; recording the matching derivative greater than zero as the environmental improvement derivative, recording the matching derivative less than zero as the environmental deterioration derivative, and recording the matching derivative equal to zero as the stable derivative; comparing and analyzing the environmental improvement derivative, the environmental deterioration derivative and the stable derivative to obtain the improvement degree, the deterioration degree and the stability degree;

[0027] 405: The environmental demand index Ff, the coincidence derivative Wj, the improvement degree Hb, the deterioration degree Gb and the stability degree Db are calculated by the set formula The environmental regulation demand index Wa of the monitored area is calculated, where a4, a5, a6, and a7 are the set proportional coefficients. is the mean of the matching derivatives of each matching point; when the environmental control demand index is greater than the set demand threshold, an environmental control instruction is generated and sent to the adaptive control module.

[0028] Preferably, the specific process of calculating the distance between the environmental parameters at each collection moment and the environmental standard parameters is as follows:

[0029] When the temperature is greater than the maximum value in the standard temperature range, the upper limit of the temperature range is used as the reference temperature. When the temperature is within the standard temperature range, the reference temperature is equal to the temperature. When the temperature is less than the minimum value in the standard temperature range, the lower limit of the standard temperature is used as the reference temperature. Similarly, the humidity and air pressure are compared with the standard humidity range and the standard air pressure range respectively to obtain the reference humidity and reference air pressure.

[0030] Preferably, the specific process of comparative analysis of the environmental improvement derivative, environmental deterioration derivative and stable derivative is:

[0031] Compare and analyze the environmental improvement derivative with the set improvement interval to divide the environmental improvement derivative into first-level improvement, second-level improvement and third-level improvement; count the cumulative number of first-level improvement, second-level improvement and third-level improvement respectively, and record them as H1, H2, H3 respectively; and calculate the environmental matching values ​​of the matching points corresponding to the first-level improvement, second-level improvement and third-level improvement respectively to obtain the first-level improvement total value, second-level improvement total value and third-level improvement total value, and record them as H4, H5, H6 respectively; substitute H1, H2, H3, H4, H5, H6 into the set formula The improvement Ha is calculated, wherein b1, b2, and b3 are respectively set proportional coefficients, and b1>b2>b3>0;

[0032] Similarly, the environmental degradation derivative and stability derivative are compared and analyzed to obtain the degree of deterioration and stability.

[0033] Beneficial effects of the present invention:

[0034] 1. By dynamically monitoring and analyzing the environmental status of each monitoring area in the substation, the impact of the environment on the equipment can be more accurately assessed, and the demand for environmental control can be determined accordingly, so as to improve the environmental monitoring accuracy of the substation and provide technical support for the adaptive control of the substation environmental control;

[0035] 2. By automatically obtaining the operation logs of each device in the monitoring area and evaluating them according to the operating parameters and fault records, it provides comprehensive monitoring and evaluation of the equipment operation status; according to the equipment risk index and environmental parameters, it dynamically adjusts the environmental control parameters of the substation to adapt to the changing working environment and equipment status, ensuring that the equipment operates under the most suitable environmental conditions, improving the efficiency and life of the equipment, while reducing energy waste and realizing automated environmental control, improving the safety and reliability of the equipment, reducing the need for human intervention, and enhancing the automation and intelligence level of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The present invention will be further described below in conjunction with the accompanying drawings.

[0037] Figure 1 It is a schematic diagram of system module connection of the present invention. DETAILED DESCRIPTION

[0038] 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.

[0039] See also Figure 1 As shown, the present invention is an integrated substation environment control system based on the Internet of Things, including: a database 101, a dynamic analysis module 102, and an adaptive control module 103;

[0040] The substation is divided into several monitoring areas, each of which is provided with sensors; the database 101 communicates with the sensors in each monitoring area to obtain environmental parameters of each area, wherein the environmental parameters include temperature, humidity and air pressure;

[0041] The dynamic analysis module 102 identifies the environmental status according to the internal environmental parameters of the substation to determine the degree of impact of the environment on the equipment in the substation, and determines the control requirements accordingly; specifically:

[0042] Take any one of the monitoring areas, retrieve the environmental parameters corresponding to each collection time, and record them as Ti, Si and Qi respectively; where i = 1, 2, 3 ... I, I is a positive integer, I represents the total number of collection times, i represents the sequence number of any collection time; each monitoring area is set to have an environmental standard parameter, where the environmental standard parameter includes a standard temperature range, a standard humidity range and a standard air pressure range; it should be noted that the standard environmental parameters refer to a set of environmental conditions set during the design, operation and maintenance of the equipment in the monitoring area to ensure that the equipment can operate in the best state, they represent the most suitable working environment state required by the equipment, due to the differences between the monitoring areas, the specific values ​​of the standard environmental parameters in each monitoring area are different; each collection The environmental parameters at the moment are compared with the environmental standard parameters to obtain the reference temperature, reference humidity and reference air pressure, and they are recorded as BT, BS and BQ respectively; take the reference temperature obtained by calculating the distance between the temperature and the standard temperature interval as an example, when the temperature is greater than the maximum value in the standard temperature interval, the upper limit of the temperature interval is used as the reference temperature, when the temperature is within the standard temperature interval, the reference temperature is equal to the temperature; when the temperature is less than the minimum value in the standard temperature interval, the lower limit of the standard temperature is used as the reference temperature; similarly, the humidity and air pressure are compared with the standard humidity interval and the standard air pressure interval respectively to obtain the reference humidity and reference air pressure; using the set formula

[0043] The environmental matching value Pa is calculated, where a1, a2, and a3 are the set proportional coefficients respectively; thus, the environmental matching value corresponding to each acquisition time is recorded as Pa i; from the formula, it can be seen that when the temperature of the environmental parameters of each monitoring area is closer to the standard temperature range (i.e. The closer the humidity is to zero), the greater the environmental matching value; when the humidity is closer to the standard humidity range (i.e. The closer the air pressure is to zero), the greater the environmental matching value; when the air pressure is closer to the standard air pressure range (i.e. The closer it is to zero), the greater the environmental matching value is; the greater the environmental matching value is, the less the need for environmental regulation is;

[0044] A two-dimensional rectangular coordinate system is constructed with time as the horizontal coordinate and the environmental matching value as the vertical coordinate. The environmental matching value is input into the coordinate system according to its corresponding collection time, and the position of the environmental matching value in the coordinate system is recorded as the matching point. A smooth curve is used to connect the matching points in sequence to obtain a curve relationship diagram of the environmental matching value changing with time; a tangent line is drawn at the matching point, and a tangent expression is obtained by data fitting. The tangent expression is derived and calculated to obtain the matching derivative Wi. It should be noted that the matching derivative is a measure of the change of the environmental matching value at the matching point. When the matching derivative is greater than zero, it means that the environmental matching derivative at the matching point is on the rise, indicating that the environment in the monitoring area is more suitable for the equipment; when the matching derivative is less than zero, it means that the environmental matching derivative at the matching point is on the decline, indicating that the environment in the monitoring area is further away from the standard environmental parameters, and it is more likely to be unsuitable for the equipment to work; the matching derivative greater than zero is recorded as the environmental improvement derivative, the matching derivative less than zero is recorded as the environmental deterioration derivative, and the matching derivative equal to zero is recorded as the stable derivative;

[0045] Compare and analyze the environmental improvement derivative with the set improvement interval. When the environmental improvement derivative is greater than the maximum value in the set improvement interval, a first-level improvement is accumulated; when the environmental improvement derivative is within the set improvement interval, a second-level improvement is accumulated; when the environmental improvement derivative is less than the minimum value in the set improvement interval, a third-level improvement is accumulated; count the cumulative number of first-level improvement, second-level improvement and third-level improvement, and record them as H1, H2 and H3 respectively; calculate the environmental matching values ​​of the matching points corresponding to the first-level improvement, second-level improvement and third-level improvement, and record them as H4, H5 and H6 respectively; use the set formula The improvement Ha is calculated, wherein b1, b2, and b3 are respectively set proportional coefficients, and b1>b2>b3>0;

[0046] Compare and analyze the environmental deterioration derivative with the set deterioration interval. When the environmental deterioration derivative is greater than the maximum value in the set deterioration interval, a first-level deterioration is accumulated; when the environmental deterioration derivative is within the set deterioration interval, a second-level deterioration is accumulated; when the environmental deterioration derivative is less than the minimum value in the set deterioration interval, a third-level deterioration is accumulated; the cumulative number of first-level deterioration, second-level deterioration and third-level deterioration are counted respectively, and recorded as G1, G2, G3 respectively; the environmental matching values ​​of the matching points corresponding to the first-level deterioration, second-level deterioration and third-level deterioration are respectively calculated to obtain the total value of the first-level deterioration, the total value of the second-level deterioration and the total value of the third-level deterioration, and recorded as G4, G5, G6 respectively; using the set formula The deterioration degree Ga is calculated, wherein b4, b5, and b6 are respectively set proportional coefficients, and b4>b5>b6>0;

[0047] The environmental matching value of the matching point corresponding to the stable derivative is taken as the stable value of the stable derivative. When the stable value is larger, it means that the environmental matching value is maintained in a relatively good state. On the contrary, when the stable value is smaller, it means that the environmental matching value is maintained in a relatively poor state. Compare and analyze the stable value with the set stable interval. When the stable value is greater than the maximum value in the set stable interval, a high-quality stability is accumulated. When the stable value is within the set stable interval, a medium-quality stability is accumulated. When the stable value is less than the minimum value in the set stable interval, a low-quality stability is accumulated. The cumulative number of high-quality stability, medium-quality stability and low-quality stability are counted respectively, and they are recorded as D1, D2, and D3 respectively. The stability values ​​corresponding to high-quality stability, medium-quality stability and low-quality stability are summed up to obtain the total value of high stability, the total value of medium stability and the total value of low stability, and they are recorded as D4, D5, and D6 respectively. Using the set formula b7×D1 b8×D2 b9×D3

[0048] Db=D4×e D1+D2+D3 +D5×e D1+D2+D3 +D6×e D1+D2+D3 The stability Db is calculated; b7, b8, and b9 are respectively the set proportional coefficients, and b7>b8>b9>0;

[0049] The environmental demand index Ff, the coincidence derivative Wj, the improvement degree Hb, the deterioration degree Gb and the stability degree Db are calculated by the formula The environmental regulation demand index Wa of the monitored area is calculated, where a4, a5, a6, and a7 are the set proportional coefficients. is the mean of the matching derivatives of each matching point; from the formula, we can see that when the matching derivative is more unstable (i.e. The larger the value is, the more unstable the environment in the monitoring area is, the greater the need for environmental regulation is, and the greater the environmental regulation demand index is; when the environmental regulation demand index is greater than the set demand threshold, it means that the environment in the monitoring area is not suitable for equipment operation at this time, and the threat to the safe operation of the equipment is relatively large, then an environmental regulation instruction is generated and sent to the adaptive control module 103;

[0050] By dynamically monitoring and analyzing the environmental status of each monitoring area in the substation, it is possible to more accurately assess the impact of the environment on the equipment, clarify the degree of matching between the environment and the working status of the equipment, and determine the need for environmental regulation based on this, thereby improving the environmental monitoring accuracy of the substation and providing reliable technical support for the adaptive control of the substation environmental control.

[0051] The adaptive control module 103 performs environmental control of each area in the substation according to the received environmental control instructions to improve the intelligent level of environmental control of the substation and ensure the safe and stable operation of the equipment; specifically:

[0052] Step 1: Obtain the operation log of each device in the monitoring area, where the operation log includes operation parameters and fault records; the operation parameters include operation temperature and operation power; the fault record includes the number of faults and the fault time corresponding to each fault;

[0053] Retrieve the operating temperature and operating power corresponding to each acquisition moment, and record them as Aj and Cj respectively; set each device to correspond to a standard operating parameter, where the standard operating parameters include standard operating temperature and rated operating power, and record them as UA and UC respectively; it should be noted that the standard operating temperature and rated operating power are determined according to the manufacturing specifications and manufacturing process of the equipment; use the set formula Calculate and obtain the equipment operation value ACj, where d1 and d2 are the set proportional coefficients respectively; construct a two-dimensional rectangular coordinate system with time as the horizontal coordinate and the operation value as the vertical coordinate, input the equipment operation value into the coordinate system according to its corresponding collection time, and record the position of the equipment operation value in the coordinate axis as the operation point, and use a smooth curve to connect the operation points in sequence to obtain the equipment operation value versus time curve relationship diagram; draw a tangent to the curve at the operation point, calculate the tangent slope to obtain the corresponding operation slope of each operation point and record it as Xi; sum the operation slopes greater than zero to obtain the operation unit increase value recorded as Y1, and sum the operation slopes less than zero and take the absolute value to calculate the operation unit decrease value recorded as Y2; use the set formula The operation risk value Yd is calculated, where d3 and d4 are the set proportional coefficients. is the mean value of the operating slope of each operating point; from the formula, it can be seen that when the operating unit value is larger, it means that the equipment operating status is better, and the operating risk value is smaller; when the cloud line single value is smaller, it means that the equipment operating status is worse, and the operating risk value is larger; when the operating slope Xi is more unstable (i.e. The larger the value is), the more unstable the equipment operation is, and the greater the operation risk value is;

[0054] Step 2: Retrieve the fault record of the equipment, where the fault record includes the number of faults and the fault start time and fault end time corresponding to each fault, and calculate the time difference between the fault start time and the fault end time corresponding to each fault to obtain the fault duration corresponding to each fault, recorded as Z1; take the fault end time of each fault as the fault time of each fault, thereby obtaining the fault time corresponding to each fault, and calculate the time difference between it and the current time of the system to obtain the fault-related duration, recorded as Z2. The larger the fault-related duration, the farther the time of the fault occurred from the current time, and the smaller the impact on the equipment at the current time of the system. Using the set formula The fault impact value Zd is calculated, where d5 and d6 are the set proportional coefficients respectively; thus, the fault impact value corresponding to each fault can be obtained, and the fault impact mean value obtained by the mean calculation is recorded as

[0055] Establish a time axis, mark each fault on the time axis according to its corresponding fault start time and fault end time to obtain the equipment fault trajectory diagram; calculate the time difference between the fault start time and fault end time corresponding to two adjacent faults to obtain the fault interval between the two adjacent faults; compare and analyze the fault interval with the set time interval. When the fault interval is greater than the maximum value in the set time interval, a long interval fault is accumulated; when the fault interval is within the set time interval, a medium interval fault is accumulated; when the fault interval is less than the maximum value in the set time interval, a short interval fault is accumulated; count the cumulative number of long interval faults, medium interval faults and short interval faults, and record them as Z3, Z4 and Z5 respectively; calculate the mean of the fault intervals for each fault and record it as Z6; use the set formula The fault risk value Zf is calculated, where f1, f2, f3, and f4 are respectively the set proportional coefficients;

[0056] Step 3: Calculate the operation risk value Yd and the fault risk value Zf by the set formula YZ=f5×Yd+f6×Zf to obtain the equipment risk index YZ, where f5 and f6 are respectively the set proportional coefficients; thus, the equipment risk index of each device in the monitoring area can be obtained, and compared with the set risk threshold for analysis. When the equipment risk index is greater than the set risk threshold, it means that the equipment has a relatively large risk, so its environmental demand is relatively high; otherwise, it will lead to increased equipment safety risks; then the equipment is marked as a risky device, and the number of risky devices in each monitoring area is counted as F1, and the equipment risk index corresponding to each risky device is summed up to obtain the total risk value recorded as F2; ​​the environmental demand index Ff is calculated using the set formula Ff=f7×F1+f8×F2, where f7 and f8 are respectively the set proportional coefficients; the environmental demand index is sent to the dynamic analysis module 102;

[0057] Step 4: Retrieve the environmental parameters corresponding to the current moment, including temperature T, humidity S and air pressure Q; use the set formula group Calculate and obtain the temperature control interval, humidity control interval and air pressure control interval respectively, wherein are the set proportional coefficients respectively; record the temperature control interval M1, humidity control interval M2 and air pressure control interval M3 as control parameters, wherein r1, r2, r3, r4, r5, r6, r7, r8 and r9 are the set proportional coefficients respectively, α is the set temperature frequency conversion coefficient, β is the set humidity frequency conversion coefficient, and δ is the set pressure frequency conversion coefficient; it can be seen from the formula that the greater the difference between the environmental parameters and the standard environmental parameters, the greater the mismatch between the environment and the equipment, and the smaller the corresponding control parameters, which means that the regulation is more frequent to better adapt to the environmental regulation at this time;

[0058] Step 5: Regulate according to the control parameters. The specific method of regulation is: compare the real-time environmental parameters with the standard environmental parameters at the intervals of M1, M2 and M3 to see if they are consistent. If not, regulate the temperature, humidity and air pressure to make them consistent with the environmental standard parameters; if consistent, maintain the current control parameters;

[0059] By automatically acquiring the operation logs of each device in the monitoring area and evaluating them based on the operating parameters and fault records, it provides comprehensive monitoring and evaluation of the equipment's operating status. Based on the equipment risk index and environmental parameters, it dynamically adjusts the substation's environmental control parameters to adapt to the ever-changing working environment and equipment status, ensuring that the equipment operates under the most suitable environmental conditions, improving the efficiency and life of the equipment, while reducing energy waste and achieving automated environmental control, thereby improving the safety and reliability of the equipment and reducing the need for human intervention.

[0060] The above contents are merely examples and explanations of the structure of the present invention. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the invention or exceed the scope defined by the claims, they should all fall within the protection scope of the present invention.

Claims

1. The integrated substation environment control system based on the Internet of Things includes a database, which divides the substation into several monitoring areas, each of which is equipped with sensors; the database communicates with the sensors in each monitoring area to obtain the environmental parameters of each area, where the environmental parameters include temperature, humidity, and air pressure; It is characterized in that Also includes: Dynamic analysis module and adaptive control module; The dynamic analysis module identifies and determines the degree of matching between the environmental parameters and the equipment, and generates environmental control instructions based on them and sends them to the adaptive control module; The adaptive control module performs environmental control in each monitoring area according to the received environmental control instructions. The specific steps of the control are: Step 1: Obtain the operation log of each device in the monitoring area, where the operation log includes operation parameters and fault records; the operation parameters include operation temperature and operation power; the fault record includes the number of faults and the fault time corresponding to each fault; Perform operation status analysis based on the equipment's operation parameters to obtain an operation risk value; Step 2: Perform a comprehensive analysis of the impact and frequency of equipment failures based on equipment failure records to obtain a failure risk value; Step 3: Weighted calculation of the operation risk value and the failure risk value to obtain the equipment risk index; Thus, the equipment risk index of each device in the monitoring area can be obtained. When the equipment risk index is greater than the set risk threshold, the device is marked as a risk device, the number of risk devices in each monitoring area is counted, and the equipment risk index corresponding to each risk device is summed up to obtain the total risk value; the number of risk devices and the total risk value are weighted to obtain the environmental demand index, and the environmental demand index is sent to the dynamic analysis module; Step 4: Retrieve the environmental parameters corresponding to the current moment, including temperature T, humidity S and air pressure Q; use the set formula group Calculate and obtain the temperature control interval, humidity control interval and air pressure control interval respectively; record the temperature control interval M1, humidity control interval M2 and air pressure control interval M3 as control parameters, wherein r1, r2, r3, r4, r5, r6, r7, r8 and r9 are respectively set proportional coefficients, α is the set temperature frequency conversion coefficient, β is the set humidity frequency conversion coefficient, δ is the set pressure frequency conversion coefficient, BT, BS and BQ are respectively reference temperature, reference humidity and reference air pressure; Step 5: Adjust according to the control parameters. The specific adjustment method is: the duration of each interval M1, M2 and M3 is used to compare whether the real-time environmental parameters are consistent with the standard environmental parameters. If they are inconsistent, the temperature, humidity and air pressure are adjusted respectively to make them consistent with the environmental standard parameters; if they are consistent, the current control parameters are maintained; the standard environmental parameters include standard temperature range, standard humidity range and standard air pressure range.

2. The integrated substation environment control system based on the Internet of Things according to claim 1 is characterized in that: The specific process of operating status analysis based on the operating parameters of the equipment is as follows: Retrieve the operating temperature and operating power corresponding to each collection moment, and record them as Ai and Ci respectively, where i=1,2,3…I, I is a positive integer, I represents the total number of collection moments, and i represents the sequence number of any collection moment; set each device to correspond to a standard operating parameter, where the standard operating parameters include standard operating temperature and rated operating power, and record them as UA and UC respectively; use the set formula Calculate and obtain the equipment operation value ACi, where d1 and d2 are respectively the set proportional coefficients; draw a curve relationship diagram of the equipment operation value changing with time with time as the horizontal coordinate and the operation value as the vertical coordinate; draw a tangent line at the operation point, calculate the slope of the tangent line to obtain the operation slope corresponding to each operation point; sum up the operation slopes greater than zero to obtain the operation unit increase value, and sum up the operation slopes less than zero and take the absolute value to calculate the operation unit decrease value; The operating slope, operating single value increase and operating single value decrease are calculated and analyzed by formulating and analyzing to obtain the operating risk value.

3. The integrated substation environment control system based on the Internet of Things according to claim 1 is characterized in that: The specific process of conducting a comprehensive analysis of the impact and frequency of equipment failures based on equipment failure records is as follows: Retrieve the fault record of the device, where the fault record includes the number of faults and the fault start time and fault end time corresponding to each fault, and calculate the time difference between the fault start time and the fault end time corresponding to each fault to obtain the fault duration corresponding to each fault; The fault end time of each fault is taken as the fault time of each fault, and the time difference between it and the current system time is calculated to obtain the fault-related duration; The fault duration and the fault-related duration are analyzed by formula calculation to obtain the fault impact value, thereby obtaining the fault impact value corresponding to each fault, and the mean value is calculated to obtain the fault impact mean value; The time difference between the start and end of two adjacent faults is calculated to obtain the fault interval between the two adjacent faults. Compare and analyze the fault interval with the set time interval to divide the fault interval into long interval faults, medium interval faults and short interval faults, count the cumulative number of long interval faults, medium interval faults and short interval faults, and calculate the average of each fault interval to obtain the fault interval mean; The cumulative number of long-interval failures, the cumulative number of medium-interval failures, the cumulative number of short-interval failures, the mean value of failure intervals and the mean value of failure impact are calculated and analyzed in a formulaic manner to obtain the failure risk value.

4. The integrated substation environment control system based on the Internet of Things according to claim 1 is characterized in that: The specific steps for generating environmental control instructions are as follows: 401: randomly select one of the monitoring areas, retrieve the environmental parameters corresponding to each collection time, and record them as Ti, Si and Qi respectively; where i=1, 2, 3...I, I is a positive integer, I represents the total number of collection times, and i represents the sequence number of any collection time; 202: It is assumed that each monitoring area has an environmental standard parameter, wherein the environmental standard parameter includes a standard temperature range, a standard humidity range, and a standard air pressure range; the environmental parameter at each collection time is compared with the environmental standard parameter to calculate the reference temperature, reference humidity, and reference air pressure, and they are recorded as BT, BS, and BQ respectively; 403: Ti, Si, Qi, BT, BS and BQ are calculated by the set formula The environmental matching value Pa is calculated, where a1, a2, and a3 are respectively the set proportional coefficients; thus, the environmental matching value corresponding to each acquisition time is recorded as Pai; 404: plotting the relationship between the environmental matching value and the time curve with time as the horizontal coordinate and the environmental matching value as the vertical coordinate; drawing a tangent line of the curve at the matching point, obtaining the tangent line expression by data fitting, and calculating the derivative of the tangent line to obtain the matching derivative Wi; recording the matching derivative greater than zero as the environmental improvement derivative, recording the matching derivative less than zero as the environmental deterioration derivative, and recording the matching derivative equal to zero as the stable derivative; comparing and analyzing the environmental improvement derivative, the environmental deterioration derivative and the stable derivative to obtain the improvement degree, the deterioration degree and the stability degree; 405: The environmental demand index Ff, the coincidence derivative Wi, the improvement degree Hb, the deterioration degree Gb and the stability degree Db are calculated by the set formula The environmental regulation demand index Wa of the monitored area is calculated, where a4, a5, a6, and a7 are the set proportional coefficients. is the mean of the fitting derivatives of each fitting point; When the environmental control demand index is greater than the set demand threshold, an environmental control instruction is generated and sent to the adaptive control module.

5. The integrated substation environment control system based on the Internet of Things according to claim 4 is characterized in that: The specific process of calculating the distance between the environmental parameters at each collection time and the environmental standard parameters is as follows: When the temperature is greater than the maximum value in the standard temperature range, the upper limit of the temperature range is used as the reference temperature. When the temperature is within the standard temperature range, the reference temperature is equal to the temperature. When the temperature is less than the minimum value in the standard temperature range, the lower limit of the standard temperature is used as the reference temperature. Similarly, the humidity and air pressure are compared with the standard humidity range and the standard air pressure range respectively to obtain the reference humidity and reference air pressure.

6. The integrated substation environment control system based on the Internet of Things according to claim 4 is characterized in that: The specific process of comparative analysis of environmental improvement derivative, environmental deterioration derivative and stability derivative is as follows: Compare and analyze the environmental improvement derivative with the set improvement interval to divide the environmental improvement derivative into first-level improvement, second-level improvement and third-level improvement; count the cumulative times of first-level improvement, second-level improvement and third-level improvement respectively, and calculate the environmental matching values ​​of the matching points corresponding to the first-level improvement, second-level improvement and third-level improvement respectively to obtain the first-level improvement total value, second-level improvement total value and third-level improvement total value; perform formula calculation and analysis on the cumulative times of first-level improvement, the cumulative times of second-level improvement, the cumulative times of third-level improvement, the total value of first-level improvement, the total value of second-level improvement and the total value of third-level improvement to obtain the improvement degree; Similarly, the environmental degradation derivative and stability derivative are compared and analyzed to obtain the degree of deterioration and stability.

Images