A mobile de-icing disconnecting switch and a de-icing control method

Abstract

The present invention provides a mobile ice-melting disconnect switch and an ice-melting control method, belonging to the technical field of electrical switches. Specifically, it includes: a current monitoring module, a data processing module, and a control strategy output module. Among them, the current monitoring module is responsible for monitoring and processing the ice-melting current during the ice-melting process. The data processing module is responsible for determining the increase risk coefficient of the ice accretion amount on the transmission line, the ice-melting processing efficiency of the transmission line, and the ice-accrual risk area of the transmission line. The control strategy output module is responsible for determining the control strategy for the ice-melting process of the transmission line, improving the efficiency of the ice-melting process.

Description

Technical Field

[0001] The present invention belongs to the technical field of electrical switches, and particularly relates to a mobile ice-melting knife switch and an ice-melting control method. Background Art

[0002] During the operation of transmission lines, especially in alpine regions, icing is inevitable. Therefore, in existing technical solutions, DC ice-melting technology is often used for ice-melting treatment. Specifically, direct current is connected to the transmission line, and a disconnecting switch is used to short-circuit the other end of the transmission line, thereby greatly improving the working efficiency of ice-melting treatment for the transmission line.

[0003] Specifically, in the existing technical solutions CN202411330249.9 "A Single-column and Single-arm Telescopic Ice-melting Switch" and CN202411170263.7 "An Ice-melting Switch for Line Short-circuiting and Grounding", specific mechanical structures and ice-melting control methods of similar ice-melting switches are given. However, the above technical solutions have the following problems:

[0004] When performing ice-melting control, the existing technical solutions ignore the dynamic adjustment of the ice-melting power according to the current change during the ice-melting process. Specifically, when performing ice-melting treatment, due to the change in the ice coating condition of the transmission line, it will lead to changes in the line loss and even the ice-melting current of the transmission line. Therefore, if the ice-melting power cannot be dynamically adjusted according to the current change, it is impossible to improve the ice-melting efficiency on the basis of controlling the ice-melting energy consumption.

[0005] In view of the above technical problems, specifically, the present application provides a mobile ice-melting knife switch and an ice-melting control method. Summary of the Invention

[0006] To achieve the object of the present invention, the present invention adopts the following technical solutions:

[0007] In a first aspect, the present application provides an ice-melting control method, specifically including:

[0008] S1 Determine the weather data in different unit time periods within the preset time period based on the analysis result of the weather data in the future preset time period, and determine the historical similar time period of the preset time period based on the analysis result of the weather data in different unit time periods;

[0009] S2 Obtain the ice coating amount change data of the transmission line in different historical similar time periods. When the increase risk coefficient of the ice coating amount of the transmission line meets the requirements determined by using the ice coating amount change data, enter the next step;

[0010] S3 uses the preset ice melting treatment power to perform ice melting treatment on the transmission line, obtains the variation data of the ice melting current during the ice melting treatment, and based on the variation data of the ice melting current, when it is determined that the ice melting treatment efficiency of the transmission line does not meet the requirements, proceed to the next step;

[0011] S4 determines the icing risk areas of the transmission line based on the historical icing data of different areas of the transmission line, and combines the ice melting treatment efficiency of the transmission line and the increased risk coefficient to determine the control strategy for the ice melting treatment of the transmission line.

[0012] The beneficial effects of the present invention are as follows:

[0013] Based on the variation data of the ice melting current, it is determined whether the ice melting treatment efficiency of the transmission line meets the requirements, thereby realizing an accurate assessment of the ice melting treatment efficiency of the transmission line based on the variation of the ice melting current, avoiding the technical problem of low ice melting treatment efficiency caused by low ice melting treatment power, and also laying a foundation for generating a differentiated control strategy for ice melting treatment according to the difference in ice melting treatment efficiency. On the basis of reducing the energy consumption of ice melting treatment, the efficiency of ice melting treatment is ensured at the same time.

[0014] Determine the control strategy for the ice melting treatment of the transmission line according to the icing risk area, the ice melting treatment efficiency of the transmission line and the increased risk coefficient, which not only takes into account the ice melting treatment efficiency of the transmission line and the magnitude of the risk of increased ice accretion in the later stage, but also comprehensively considers the difference in the icing risk of the transmission line due to the difference in the icing risk area of the transmission line, realizing the determination of the control strategy for ice melting treatment from a multi-dimensional perspective and ensuring the effectiveness of ice melting treatment.

[0015] A further technical solution is that the variation data of the ice accretion amount of the transmission line includes the variation data of the ice accretion amount between different adjacent unit time periods in the historical similar time periods.

[0016] A further technical solution is that determining that the increased risk coefficient of the ice accretion amount of the transmission line meets the requirements specifically includes:

[0017] Use the variation data of the ice accretion amount to determine the variation amount of the ice accretion amount of the transmission line in different historical similar time periods, and use the variation amount of the ice accretion amount to determine the ice accretion amount increase time periods in the historical similar time periods;

[0018] Determine the ice accretion amount variation risk coefficient of different ice accretion amount increase time periods according to the ice accretion amount variation amount of different ice accretion amount increase time periods;

[0019] Determine the increase risk coefficient of the ice accretion amount of the transmission line based on the ice accretion amount change risk coefficient of different ice accretion amount increase periods and the proportion of the number of the ice accretion amount increase periods in the historical similar periods, and combine the preset risk coefficient threshold to determine whether the increase risk coefficient of the ice accretion amount of the transmission line meets the requirements.

[0020] A further technical solution lies in that the ice accretion amount change risk coefficient of the ice accretion amount increase period is determined according to the preset change risk coefficient corresponding to the ice accretion amount change amount of the ice accretion amount increase period.

[0021] A further technical solution lies in that the increase risk coefficient of the ice accretion amount of the transmission line is determined according to the product of the average value of the ice accretion amount change risk coefficients of different ice accretion amount increase periods and the proportion of the number of the ice accretion amount increase periods in the historical similar periods.

[0022] A further technical solution lies in that the method for determining the control strategy for the ice melting treatment of the transmission line is as follows:

[0023] Determine the line ice accretion risk coefficient of the transmission line with the preset ice accretion risk coefficient corresponding to the number of ice accretion risk areas of the transmission line;

[0024] Determine the ice melting treatment demand coefficient of the transmission line according to the line ice accretion risk coefficient, the increase risk coefficient and the ice melting treatment efficiency of the transmission line;

[0025] Determine the control strategy for the ice melting treatment of the transmission line based on the ice melting treatment demand coefficient of the transmission line.

[0026] A further technical solution lies in that the ice melting treatment demand coefficient of the transmission line is determined according to the ratio of the sum of the line ice accretion risk coefficient and the increase risk coefficient of the transmission line to the ice melting treatment efficiency.

[0027] A further technical solution lies in that determining the control strategy for the ice melting treatment of the transmission line based on the ice melting treatment demand coefficient of the transmission line specifically includes:

[0028] When the ice melting treatment demand coefficient of the transmission line is greater than the preset treatment demand coefficient threshold, then determine the control strategy for the ice melting treatment of the transmission line by using the maximum ice melting treatment power;

[0029] When the ice melting treatment demand coefficient of the transmission line is not greater than the preset treatment demand coefficient threshold, then determine the control strategy for the ice melting treatment of the transmission line with the ice melting treatment power corresponding to the ice melting treatment demand coefficient of the transmission line.

[0030] In a second aspect, the present invention provides a mobile de-icing switch, which adopts the above-mentioned de-icing control method and specifically includes:

[0031] A current monitoring module, a data processing module, a control strategy output module, and a mobile module;

[0032] Wherein the mobile module is responsible for the movement processing of the de-icing switch;

[0033] The current monitoring module is responsible for monitoring the de-icing current during the de-icing process;

[0034] The data processing module is responsible for determining the risk coefficient of the increase in the ice coverage amount of the transmission line, the de-icing efficiency of the transmission line, and the ice-covered risk area of the transmission line;

[0035] The control strategy output module is responsible for determining the control strategy for the de-icing process of the transmission line.

[0036] Other features and advantages will be described in the following specification, and, in part, will become apparent from the specification or will be understood by implementing the present invention. The objectives and other advantages of the present invention are achieved and obtained by the structures specifically pointed out in the specification and the drawings.

[0037] To make the above objectives, features, and advantages of the present invention more obvious and understandable, the following specific preferred embodiments are given, and in conjunction with the accompanying drawings, the detailed description is as follows. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] By referring to the accompanying drawings and describing in detail its exemplary embodiments, the above and other features and advantages of the present invention will become more obvious.

[0039] Figure 1 is a flowchart of a de-icing control method;

[0040] Figure 2 is a flowchart of a method for determining a historical similar period of a preset period;

[0041] Figure 3 is a flowchart for determining that the risk coefficient of the increase in the ice coverage amount of the transmission line meets the requirements;

[0042] Figure 4 is a framework diagram of a mobile de-icing switch;

[0043] Figure 5 is a structural diagram of the mobile module of a mobile de-icing switch.

[0044] Reference Signs:

[0045] 1. Mobile trolley, 2. Lifting platform. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0046] Example embodiments will now be described more fully with reference to the accompanying drawings. However, the example embodiments can be implemented in various forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the example embodiments to those skilled in the art. Like reference numerals in the figures denote like or similar structures, and thus their detailed description will be omitted.

[0047] The terms "a", "an", "the", and "said" are used to denote the presence of one or more elements / components / etc.; the terms "comprising" and "having" are used to mean an open inclusion and mean that there may be additional elements / components / etc. in addition to the listed elements / components / etc.

[0048] Increasing the risk coefficient: Using the icing amount change data to determine the time period during which the icing amount of the transmission line increases in the historical similar time period, that is, the determination of the icing amount increase time period. According to the proportion of the number of different icing amount increase time periods in the historical similar time period, the increasing risk coefficient is determined. When the increasing risk coefficient is greater than 0.3, it is determined that the increasing risk coefficient does not meet the requirements.

[0049] De-icing treatment efficiency: Determine the unit time period in which the change amount of the de-icing current is within the preset current change amount range according to the change amount of the de-icing current between adjacent unit time periods, and use it as the change time period. Based on the proportion of the duration of the change time period within the most recent unit duration, the de-icing treatment efficiency of the transmission line is determined. When the de-icing treatment efficiency is greater than 0.6, it is determined that the de-icing treatment efficiency meets the requirements.

[0050] The deviation amount of the weather data is the average value of the deviation rates of different types of weather data.

[0051] The deviation rate of different types of weather data is determined according to the ratio of the deviation value of different types of weather data to the weather data of the historical time period and the weather data of the current date. Specifically, for example, if the temperature in a unit time period is -3 degrees Celsius and the temperature in the historical time period is -5 degrees Celsius, the deviation rate is (5 - 3) / 3 = 0.67.

[0052] Control strategy for de-icing treatment: When the de-icing treatment demand coefficient of the transmission line is not less than 0.6, the control strategy for de-icing treatment of the transmission line is determined using the maximum de-icing treatment power;

[0053] When the ice melting treatment demand coefficient of the transmission line is less than 0.6, the control strategy for the ice melting treatment of the transmission line is determined based on the ice melting treatment power corresponding to the ice melting treatment demand coefficient of the transmission line. For example, when the ice melting treatment demand coefficient is between 0 and 0.3, the first ice melting treatment power is used for ice melting treatment. When the ice melting treatment demand coefficient is between 0.3 and 0.6, the second ice melting treatment power is used for ice melting treatment.

[0054] Wherein the first ice melting treatment power is less than the second ice melting treatment power, and the second ice melting treatment power is less than the maximum ice melting treatment power.

[0055] Embodiment 1

[0056] To solve the above problems, according to one aspect of the present invention, as Figure 1 shown, according to one aspect of the present invention, the present application provides an ice melting control method, which specifically includes:

[0057] S1 Determine the weather data in different unit time periods within the preset time period based on the analysis result of the weather data in the future preset time period, and determine the historical similar time period of the preset time period based on the analysis result of the weather data in different unit time periods.

[0058] Furthermore, the preset time period is determined according to the length of the transmission line, wherein the longer the length of the transmission line, the longer the duration of the preset time period.

[0059] It should be noted that the weather data includes temperature, humidity, wind speed, and rainfall.

[0060] It can be understood that, as Figure 2 shown, the method for determining the historical similar time period of the preset time period is:

[0061] Determine the deviation situation of the weather data in different historical time periods and the weather data in different unit time periods of the preset time period based on the analysis result of the weather data in different unit time periods.

[0062] Determine the deviation rate of different types of weather data according to the deviation situation of the weather data in different unit time periods, and use the average value of the deviation rates of different types of weather data to determine the deviation amount of the weather data in different time periods.

[0063] Based on the average value of the deviation amounts of the weather data in different time periods, determine whether the historical time period is the historical similar time period of the preset time period.

[0064] Furthermore, when the average value of the deviation amounts of the weather data in different time periods is within the preset weather deviation amount range, it is determined that the historical time period is the historical similar time period of the preset time period.

[0065] S2 obtains the icing quantity change data of the transmission line in different historical similar periods. When the increase risk coefficient of the icing quantity of the transmission line is determined to meet the requirements by using the icing quantity change data, proceed to the next step;

[0066] It can be understood that the icing quantity change data of the transmission line includes the icing quantity change data between different adjacent unit periods in the historical similar periods.

[0067] Specifically, as Figure 3 shown, determining that the increase risk coefficient of the icing quantity of the transmission line meets the requirements specifically includes:

[0068] Using the icing quantity change data to determine the icing quantity change amount of the transmission line in different historical similar periods, and using the icing quantity change amount to determine the icing quantity increase period in the historical similar periods;

[0069] Determining the icing quantity change risk coefficient of different icing quantity increase periods according to the icing quantity change amount of different icing quantity increase periods;

[0070] Based on the icing quantity change risk coefficient of different icing quantity increase periods and the quantity proportion of the icing quantity increase period in the historical similar periods, determining the increase risk coefficient of the icing quantity of the transmission line, and combining with the preset risk coefficient threshold to determine whether the increase risk coefficient of the icing quantity of the transmission line meets the requirements.

[0071] Furthermore, the icing quantity change risk coefficient of the icing quantity increase period is determined according to the preset change risk coefficient corresponding to the icing quantity change amount of the icing quantity increase period.

[0072] It can be understood that the increase risk coefficient of the icing quantity of the transmission line is determined according to the product of the average value of the icing quantity change risk coefficients of different icing quantity increase periods and the quantity proportion of the icing quantity increase period in the historical similar periods.

[0073] It should be noted that when the increase risk coefficient of the icing quantity of the transmission line is greater than the preset risk coefficient threshold, it is determined that the increase risk coefficient of the icing quantity of the transmission line does not meet the requirements.

[0074] Specifically, when the increase risk coefficient of the icing quantity of the transmission line does not meet the requirements, the control strategy for ice melting treatment of the transmission line is determined by using the maximum ice melting treatment power.

[0075] Optionally, determining that the increase risk coefficient of the icing quantity of the transmission line meets the requirements specifically includes:

[0076] Determine the amount of ice accretion change of the transmission line in different historical similar time periods by using the ice accretion amount change data, and when it is determined that there is no ice accretion increase period in the historical similar time period by using the amount of ice accretion change, it is determined that the ice accretion increase risk coefficient of the transmission line meets the requirements, and determine the ice accretion increase risk coefficient of the transmission line by using a preset risk coefficient;

[0077] When it is determined that there is an ice accretion increase period in the historical similar time period by using the amount of ice accretion change:

[0078] Obtain the maximum value of the ice accretion increase in the ice accretion increase period. When the maximum value of the ice accretion increase in the ice accretion increase period is greater than the preset ice accretion increase threshold, it is determined that the ice accretion increase risk coefficient of the transmission line does not meet the requirements;

[0079] When the maximum value of the ice accretion increase in the ice accretion increase period is not greater than the preset ice accretion increase threshold:

[0080] Determine the ice accretion change risk coefficients of different ice accretion increase periods according to the ice accretion change amounts of different ice accretion increase periods. When the average value of the ice accretion change risk coefficients of different ice accretion increase periods is greater than the preset risk coefficient threshold:

[0081] Obtain the quantity proportion of the ice accretion increase period in the historical similar time period. When the quantity proportion of the ice accretion increase period in the historical similar time period is greater than the preset time period quantity proportion, it is determined that the ice accretion increase risk coefficient of the transmission line does not meet the requirements;

[0082] When the average value of the ice accretion change risk coefficients of different ice accretion increase periods is not greater than the preset risk coefficient threshold or the quantity proportion of the ice accretion increase period in the historical similar time period is not greater than the preset time period quantity proportion:

[0083] Determine the ice accretion increase risk coefficient of the transmission line based on the ice accretion change risk coefficients of different ice accretion increase periods and the quantity proportion of the ice accretion increase period in the historical similar time period, and combine the preset risk coefficient threshold to determine whether the ice accretion increase risk coefficient of the transmission line meets the requirements.

[0084] S3 Perform ice melting treatment on the transmission line by using a preset ice melting treatment power, obtain the change data of the ice melting current during the ice melting treatment process, and when it is determined that the ice melting treatment efficiency of the transmission line does not meet the requirements based on the change data of the ice melting current, proceed to the next step;

[0085] Further, the preset ice melting treatment power is determined according to the length of the transmission line, where the longer the length of the transmission line, the greater the preset ice melting treatment power.

[0086] In addition, it should be noted that the preset ice melting treatment power is determined according to half of the rated output power of the ice melting treatment power supply.

[0087] It can be understood that determining that the ice melting treatment efficiency of the transmission line does not meet the requirements specifically includes:

[0088] Based on the variation data of the ice melting current, determine the variation amount of the ice melting current between adjacent unit time periods;

[0089] Determine the unit time periods in which the variation amount of the ice melting current is within the preset current variation amount range according to the variation amount of the ice melting current between adjacent unit time periods, and use them as the variation time periods;

[0090] Determine the ice melting treatment efficiency of the transmission line based on the duration ratio of the variation time periods within the most recent unit duration, and use the preset efficiency threshold to determine whether the ice melting treatment efficiency of the transmission line meets the requirements.

[0091] Further, the value range of the ice melting treatment efficiency of the transmission line is between 0 and 1, where when the ice melting treatment efficiency of the transmission line is greater than the preset efficiency threshold, it is determined that the ice melting treatment efficiency of the transmission line meets the requirements.

[0092] Specifically, when the ice melting treatment efficiency of the transmission line meets the requirements, the control strategy for ice melting treatment of the transmission line is determined using the preset ice melting treatment power.

[0093] Optionally, determining that the ice melting treatment efficiency of the transmission line does not meet the requirements specifically includes:

[0094] S31 Based on the variation data of the ice melting current, determine the variation amount of the ice melting current between adjacent unit time periods, determine the unit time periods in which the variation amount of the ice melting current is within the preset current variation amount range according to the variation amount of the ice melting current between adjacent unit time periods, and use them as the variation time periods;

[0095] S32 Based on different variation time periods and the variation amount of the ice melting current between adjacent unit time periods, determine the ice melting current variation coefficients of different variation time periods;

[0096] S33 Determine the ice melting treatment efficiency of the transmission line based on the ice melting current variation coefficients of different variation time periods within the most recent unit duration, and use the preset efficiency threshold to determine whether the ice melting treatment efficiency of the transmission line meets the requirements.

[0097] Optionally, the above step S31 includes the following content:

[0098] S311 Obtain the change amount of the ice melting current between different adjacent unit time periods. When the maximum value of the change amount of the ice melting current between different adjacent unit time periods is greater than the preset change amount threshold, it is determined that the ice melting treatment efficiency of the transmission line meets the requirements. When there is a unit time period in which the change amount of the ice melting current between adjacent unit time periods is not within the preset change amount interval, go to step S312;

[0099] S312 Based on the change data of the ice melting current, determine the change amount of the ice melting current between adjacent unit time periods. When there is no unit time period in which the change amount of the ice melting current between adjacent unit time periods is within the preset change amount interval, it is determined that the ice melting treatment efficiency of the transmission line does not meet the requirements, and use the preset ice melting treatment efficiency to determine the ice melting treatment efficiency of the transmission line. When there is a unit time period in which the change amount of the ice melting current between adjacent unit time periods is within the preset change amount interval, go to step S313;

[0100] S313 Take the unit time periods in which the change amount of the ice melting current between adjacent unit time periods is within the preset current change amount interval as change time periods. When the proportion of the number of change time periods in the most recent unit time is less than the preset proportion of the number of change time periods, go to step S314. When the proportion of the number of change time periods in the most recent unit time is not less than the preset proportion of the number of change time periods, go to step S32;

[0101] S314 When the maximum value of the change amount of the ice melting current between the change time periods in the most recent unit time and the adjacent unit time periods is less than the preset current change amount threshold, it is determined that the ice melting treatment efficiency of the transmission line does not meet the requirements. When the maximum value of the change amount of the ice melting current between the change time periods in the most recent unit time and the adjacent unit time periods is not less than the preset current change amount threshold, go to step S32.

[0102] Optionally, the above step S32 includes the following content:

[0103] S321 Based on the change amount of the ice melting current between different change time periods and adjacent unit time periods, determine the ice melting current change coefficient of different change time periods. When there is a change time period in which the ice melting current change coefficient is greater than the preset current change coefficient, go to step S33. When there is no change time period in which the ice melting current change coefficient is greater than the preset current change coefficient, go to step S322;

[0104] S322 If the sum of the ice melting current change coefficients during the change periods within the most recent unit time duration is within the preset change coefficient range, then proceed to step S323; if the sum of the ice melting current change coefficients during the change periods within the most recent unit time duration is not within the preset change coefficient range, then proceed to step S33;

[0105] S323 If the number of change periods during which the ice melting current change coefficient is within the preset change range is less than the preset number threshold, then determine that the ice melting treatment efficiency of the transmission line does not meet the requirements; if the number of change periods during which the ice melting current change coefficient is within the preset change range is not less than the preset number threshold, then proceed to step S33.

[0106] S4 Determine the icing risk areas of the transmission line based on the historical icing data of different regions of the transmission line, and determine the control strategy for the ice melting treatment of the transmission line by combining the ice melting treatment efficiency of the transmission line and the increased risk coefficient.

[0107] Specifically, the method for determining the icing risk areas of the transmission line is as follows:

[0108] Based on the historical icing data of different regions of the transmission line, determine the historical icing times of the region;

[0109] Based on the average value of the similarity rates between the weather data corresponding to different historical icing times and the weather data of the current date, determine the similarity weight coefficients for different historical icing times;

[0110] Determine the icing risk coefficient of the region by the sum of the similarity weight coefficients for different historical icing times, and use the icing risk coefficient to determine whether the region is an icing risk area.

[0111] Furthermore, if the icing risk coefficient of the region is greater than the preset coefficient threshold, then determine that the region is an icing risk area.

[0112] Optionally, the method for determining the icing risk areas of the transmission line is as follows:

[0113] Based on the historical icing data of different regions of the transmission line, if it is determined that there has been no historical icing situation in the region, then determine that the region does not belong to the icing risk area;

[0114] When there has been a historical icing situation in the region:

[0115] Based on the historical icing data of different regions of the transmission line, determine the historical icing times of the region. If the historical icing times of the region are greater than the preset icing times threshold, then determine that the region is an icing risk area;

[0116] When the historical icing times of the area are not greater than the preset icing times threshold:

[0117] Based on the average value of the similarity rates between the weather data corresponding to different historical icing times and the weather data of the current date, determine the similarity weight coefficients for different historical icing times. When the similarity weight coefficients for different historical icing times are all less than the preset weight coefficient threshold, it is determined that the area does not belong to the icing risk area;

[0118] When there are historical icing times with similarity weight coefficients not less than the preset weight coefficient threshold:

[0119] When the historical icing times with similarity weight coefficients not less than the preset weight coefficient threshold do not meet the requirements, it is determined that the area belongs to the icing risk area;

[0120] When the historical icing times with similarity weight coefficients not less than the preset weight coefficient threshold meet the requirements:

[0121] Determine the similarity weight coefficients for different dates based on the average value of the similarity rates between the weather data of different dates and the weather data of the current date, and use the dates with similarity weight coefficients not less than the preset weight coefficient threshold as similar dates. When the ratio of the number of historical icing times with similarity weight coefficients not less than the preset weight coefficient threshold to the number of similar dates does not meet the requirements, it is determined that the area belongs to the icing risk area;

[0122] When the ratio of the number of historical icing times with similarity weight coefficients not less than the preset weight coefficient threshold to the number of similar dates meets the requirements:

[0123] Determine the icing risk coefficient of the area by the sum of the similarity weight coefficients of different historical icing times, and use the icing risk coefficient to determine whether the area is an icing risk area.

[0124] Specifically, the method for determining the control strategy for the ice melting treatment of the transmission line is as follows:

[0125] Determine the line icing risk coefficient of the transmission line based on the preset icing risk coefficient corresponding to the number of icing risk areas of the transmission line;

[0126] Determine the ice melting treatment demand coefficient of the transmission line according to the line icing risk coefficient, increased risk coefficient and ice melting treatment efficiency of the transmission line;

[0127] Determine the control strategy for the ice melting treatment of the transmission line based on the ice melting treatment demand coefficient of the transmission line.

[0128] Further, the ice melting treatment demand coefficient of the transmission line is determined according to the ratio of the sum of the line icing risk coefficient and the increased risk coefficient of the transmission line to the ice melting treatment efficiency.

[0129] In addition, it should be noted that based on the ice melting treatment demand coefficient of the transmission line, the control strategy for the ice melting treatment of the transmission line is determined, specifically including:

[0130] When the ice melting treatment demand coefficient of the transmission line is greater than the preset treatment demand coefficient threshold, the control strategy for the ice melting treatment of the transmission line is determined by using the maximum ice melting treatment power;

[0131] When the ice melting treatment demand coefficient of the transmission line is not greater than the preset treatment demand coefficient threshold, the control strategy for the ice melting treatment of the transmission line is determined with the ice melting treatment power corresponding to the ice melting treatment demand coefficient of the transmission line.

[0132] Embodiment 2

[0133] In the second aspect, as Figure 4 shown, the present invention provides a mobile ice melting disconnecting switch, which adopts the above-mentioned ice melting control method, specifically including:

[0134] A current monitoring module, a data processing module, a control strategy output module, and a mobile module;

[0135] Wherein the mobile module is responsible for the movement processing of the ice melting disconnecting switch;

[0136] The current monitoring module is responsible for the monitoring processing of the ice melting current during the ice melting treatment process;

[0137] The data processing module is responsible for determining the increased risk coefficient of the ice accretion amount of the transmission line, the ice melting treatment efficiency of the transmission line, and the ice icing risk area of the transmission line;

[0138] The control strategy output module is responsible for determining the control strategy for the ice melting treatment of the transmission line.

[0139] Optionally, as Figure 5 shown is a structural diagram of the mobile module of a mobile ice melting disconnecting switch, including a mobile trolley and a lifting platform. The ice melting disconnecting switch is arranged on the lifting platform, thereby improving the flexibility of the ice melting disconnecting switch.

[0140] Each embodiment in this specification is described in a progressive manner. For the same or similar parts among the embodiments, reference can be made to each other, and the differences between each embodiment and other embodiments are emphasized. In particular, for the embodiments of devices, equipment, and non-volatile computer storage media, since they are basically similar to the method embodiments, the description is relatively simple, and reference can be made to the relevant parts of the method embodiments for the relevant content.

[0141] The specific embodiments of this specification are described above. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recited in the claims can be performed in a different order than in the embodiments and still achieve the desired results. Additionally, the processes depicted in the figures do not necessarily require the particular order or sequential order shown to achieve the desired results. In certain embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0142] The above description is only for one or more embodiments of this specification and is not intended to limit this specification. For those skilled in the art, various changes and modifications can be made to one or more embodiments of this specification. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of one or more embodiments of this specification shall be included within the scope of the claims of this specification.

Claims

1. An ice melting control method, characterized in that: Specifically include: Determine the weather data in different unit time periods in the preset time period based on the analysis results of the weather data in the future preset time period, and determine the historical similar time period of the preset time period based on the analysis results of the weather data in different unit time periods; Acquire ice coverage variation data of the transmission line in different similar historical periods, and use the ice coverage variation data to determine that when the risk coefficient of ice coverage increase of the transmission line meets the requirements, proceed to the next step; Perform ice melting processing on the transmission line using a preset ice melting processing power, obtain change data of ice melting current during the ice melting processing, and when it is determined based on the change data of ice melting current that the ice melting processing efficiency of the transmission line does not meet the requirements, proceed to the next step; Determine the icing risk area of ​​the transmission line based on the historical icing data of different areas of the transmission line, and determine the control strategy of the icing treatment of the transmission line in combination with the icing treatment efficiency of the transmission line and the increased risk factor; Determining that the ice melting efficiency of the transmission line does not meet the requirements specifically includes: Determining the variation of the ice-melting current between adjacent unit time periods based on the variation data of the ice-melting current; Determine the unit time period in which the change amount of the ice melting current is within a preset current change amount interval according to the change amount of the ice melting current between adjacent unit time periods, and use it as the change period; Determine the ice melting efficiency of the transmission line based on the proportion of the duration of the variable period within the most recent unit duration, and determine whether the ice melting efficiency of the transmission line meets the requirements using a preset efficiency threshold; The value range of the ice melting efficiency of the transmission line is between 0 and 1, wherein when the ice melting efficiency of the transmission line is greater than the preset efficiency threshold, it is determined that the ice melting efficiency of the transmission line meets the requirements.

2. The ice melting control method according to claim 1, characterized in that: The preset time period is determined according to the length of the power transmission line, wherein the longer the length of the power transmission line is, the longer the duration of the preset time period is.

3. The ice melting control method according to claim 1, characterized in that: The weather data includes temperature, humidity, wind speed and rainfall.

4. The ice melting control method according to claim 1, characterized in that: The method for determining the historical similar period of the preset period is: Determine the deviation of weather data in different unit time periods between different historical time periods and the preset time period based on the analysis results of weather data in different unit time periods; Determine the deviation rate of different types of weather data according to the deviation of weather data in different unit time periods, and determine the deviation amount of weather data in different time periods by using the average value of the deviation rate of different types of weather data; Based on an average value of the deviation amounts of weather data in different time periods, it is determined whether the historical time period is a historically similar time period to the preset time period.

5. The ice melting control method according to claim 1, characterized in that: The ice coverage variation data of the power transmission line includes ice coverage variation data between different adjacent unit time periods in the historical similar time period.

6. The ice melting control method according to claim 1, characterized in that: Determining that the risk factor of ice coverage on the transmission line meets the requirements specifically includes: Determine the ice coverage variation of the transmission line in different historical similar time periods using the ice coverage variation data, and determine the ice coverage increase period in the historical similar time period using the ice coverage variation; Determine the risk coefficient of ice cover variation in different ice cover increase periods according to the ice cover variation in different ice cover increase periods; The risk coefficient of ice cover increase of the transmission line is determined based on the risk coefficient of ice cover change in different ice cover increase periods and the proportion of the ice cover increase periods in the historical similar periods, and whether the risk coefficient of ice cover increase of the transmission line meets the requirements is determined in combination with a preset risk coefficient threshold.

7. The ice melting control method according to claim 6, characterized in that: The ice coverage amount change risk coefficient during the ice coverage amount increase period is determined according to a preset change risk coefficient corresponding to the ice coverage amount change amount during the ice coverage amount increase period.

8. The ice melting control method according to claim 1, characterized in that: When the risk factor of the increase in ice coverage of the transmission line does not meet the requirement, the control strategy of ice melting treatment of the transmission line is determined by using the maximum ice melting treatment power.

9. The ice melting control method according to claim 1, characterized in that: The method for determining the control strategy of the ice melting process of the transmission line is: Determining a line icing risk coefficient of the transmission line according to a preset icing risk coefficient corresponding to the number of icing risk areas of the transmission line; Determining an ice melting treatment demand coefficient of the transmission line according to the line icing risk coefficient, the increased risk coefficient and the ice melting treatment efficiency of the transmission line; A control strategy for ice melting of the power transmission line is determined based on an ice melting demand coefficient of the power transmission line.

10. A mobile ice-melting knife gate, using an ice-melting control method according to any one of claims 1 to 9, characterized in that: Specifically include: Current monitoring module, data processing module, control strategy output module, mobile module; The mobile module is responsible for the movement of the ice melting knife gate; The current monitoring module is responsible for monitoring the ice melting current during the ice melting process; The data processing module is responsible for determining the risk factor of ice coverage increase of the transmission line, the ice melting efficiency of the transmission line, and the ice coverage risk area of ​​the transmission line; The control strategy output module is responsible for determining the control strategy for ice melting processing of the transmission line.

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