CN118017522B

CN118017522B - Method, device, system and storage medium for collaborative regulation and control of transformer area voltage

Info

Publication number: CN118017522B
Application number: CN202410411726.8A
Authority: CN
Inventors: 曾顺奇; 牛振勇; 刘奇; 陈明辉; 李东旭; 罗远荣; 周荣生; 黄锦波; 吴照裕; 杨澜倩
Original assignee: Guangzhou Power Supply Bureau of Guangdong Power Grid Co Ltd
Current assignee: Guangzhou Power Supply Bureau of Guangdong Power Grid Co Ltd
Priority date: 2024-04-08
Filing date: 2024-04-08
Publication date: 2024-07-09
Anticipated expiration: 2044-04-08
Also published as: CN118017522A

Abstract

The application relates to the technical field of transformer area voltage regulation and control, and provides a transformer area voltage cooperative regulation and control method, device, system and storage medium, which can be used for targeted regulation and control based on the root cause of transformer area low-voltage side bus voltage out-of-limit. In the application, a current structure body and a plurality of historical structure bodies are obtained; determining an out-of-limit historical structure based on whether the grid-section low-voltage side bus voltage of the historical structure is out-of-limit; calculating historical weight and current weight of reasons for leading the bus voltage of the low-voltage side of the transformer area to exceed the upper limit when the bus voltage of the low-voltage side of the transformer area exceeds the upper limit; when the low-voltage side bus voltage of the front area is lower than the lower limit, calculating the historical weight and the current weight of the reasons causing the low-voltage side bus voltage of the area to be lower than the lower limit; and determining the priority of overcoming the corresponding measures of each reason in the current regulation according to the historical weight and the current weight of each reason.

Description

Method, device, system and storage medium for collaborative regulation and control of transformer area voltage

Technical Field

The present application relates to the field of a platform region voltage regulation technology, and in particular, to a platform region voltage cooperative regulation method, a device, a platform region voltage cooperative regulation system, a storage medium and a computer program product.

Background

Along with the gradual increase of the grid-connected quantity of the adjustable source load in the power grid, the voltage fluctuation of the transformer area is gradually enhanced and the method has the characteristic of randomness, while the traditional voltage regulation and control means are mostly fixed regulation and control or long-period regulation and control contents are determined only aiming at the voltage out-of-limit condition, so that the voltage out-of-limit problem of part of the transformer area is repeatedly caused.

Aiming at a part of transformer areas sensitive to voltage operation stability, the requirement on the qualification rate of grid-connected point voltage is often higher, the problem of voltage out-of-limit can occur repeatedly by simply applying the traditional voltage regulation and control means, and the voltage regulation and control effect is difficult to meet the requirement.

Disclosure of Invention

In view of the foregoing, it is desirable to provide a coordinated bay voltage regulation method, apparatus, coordinated bay voltage regulation system, storage medium, and computer program product.

The application provides a method for cooperatively regulating and controlling voltage of a platform region, which comprises the following steps:

Acquiring the bus voltage at the low-voltage side of the current transformer area;

if the bus voltage at the low-voltage side of the current transformer area exceeds the limit of the voltage qualified area, acquiring a current structural body and a plurality of historical structural bodies; each structure comprises: the low-voltage side bus voltage of the transformer area, the high-voltage side bus voltage of the transformer area, the low-voltage side power factor of the transformer area, the load factor and the power inverting quantity of the low-voltage side bus of the transformer area at corresponding moments;

determining an out-of-limit history structure from among the plurality of history structures based on whether or not the low-voltage-side bus voltage of the bay contained in the history structure crosses the target limit; the target limit is the limit of the voltage qualification interval of the bus voltage at the low voltage side of the current transformer area;

When the target limit is an upper limit, respectively calculating the historical weight and the current weight of the reason for leading the bus voltage of the low voltage side of the station to be higher than the upper limit based on the bus voltage of the high voltage side of the station and the bus power dump quantity of the low voltage side of the station, which are respectively included by the historical structure body and the current structure body beyond the upper limit;

when the target limit is a lower limit, respectively calculating the historical weight and the current weight of the reason for leading the low-voltage side bus voltage of the platform to be lower than the limit based on the high-voltage side bus voltage of the platform, the low-voltage side power factor of the platform and the load factor of the platform, which are respectively included by the historical structure body and the current structure body beyond the lower limit;

And determining the priority of overcoming the corresponding measures of each reason in the current transformer area voltage regulation according to the historical weight and the current weight of each reason.

The application provides a device for cooperatively regulating and controlling voltage of a platform region, which comprises:

the voltage acquisition module is used for acquiring the bus voltage at the low-voltage side of the current transformer area;

The structure body acquisition module is used for acquiring a current structure body and a plurality of historical structure bodies if the low-voltage side bus voltage of the current transformer area exceeds the limit of the voltage qualified interval; each structure comprises: the low-voltage side bus voltage of the transformer area, the high-voltage side bus voltage of the transformer area, the low-voltage side power factor of the transformer area, the load factor and the power inverting quantity of the low-voltage side bus of the transformer area at corresponding moments;

An out-of-limit structure determination module for determining out-of-limit historical structures among the plurality of historical structures based on whether the platform low-voltage side bus voltage contained in the historical structures crosses a target limit; the target limit is the limit of the voltage qualification interval of the bus voltage at the low voltage side of the current transformer area;

The weight calculation module is used for calculating the historical weight and the current weight of the reason for leading the bus voltage of the high-voltage side of the platform area to exceed the upper limit on the basis of the bus voltage of the high-voltage side of the platform area and the bus power dump quantity of the low-voltage side of the platform area, which are respectively included by the historical structure body and the current structure body beyond the upper limit when the target limit is the upper limit;

The weight calculation module is further used for respectively calculating the historical weight and the current weight of the reason for leading the low-voltage side bus voltage of the platform to be lower than the limit based on the high-voltage side bus voltage of the platform, the low-voltage side power factor of the platform and the load factor of the platform, which are respectively included by the historical structure body and the current structure body beyond the lower limit when the target limit is lower than the limit;

And the regulation processing module is used for determining the priority of the corresponding measures for overcoming each reason in the current transformer area voltage regulation according to the historical weight and the current weight of each reason.

The application provides a system for collaborative regulation and control of a district voltage, which comprises a memory and a processor, wherein the memory stores a computer program, and the processor executes the method.

The present application provides a computer readable storage medium having stored thereon a computer program for execution by a processor of the above method.

The present application provides a computer program product having a computer program stored thereon, the computer program being executed by a processor to perform the above method.

The method and the device for the coordinated regulation and control of the transformer area voltage, the coordinated regulation and control system of the transformer area voltage, a storage medium and a computer program product acquire the bus voltage of the low-voltage side of the current transformer area; if the bus voltage at the low-voltage side of the current transformer area exceeds the limit of the voltage qualified area, acquiring a current structural body and a plurality of historical structural bodies; each structure comprises: the low-voltage side bus voltage of the transformer area, the high-voltage side bus voltage of the transformer area, the low-voltage side power factor of the transformer area, the load factor and the power inverting quantity of the low-voltage side bus of the transformer area at corresponding moments; determining an out-of-limit history structure from among the plurality of history structures based on whether or not the low-voltage-side bus voltage of the bay contained in the history structure crosses the target limit; the target limit is the limit of the voltage qualification interval of the bus voltage at the low voltage side of the current transformer area; when the target limit is an upper limit, respectively calculating the historical weight and the current weight of the reason for leading the bus voltage of the low voltage side of the station to be higher than the upper limit based on the bus voltage of the high voltage side of the station and the bus power dump quantity of the low voltage side of the station, which are respectively included by the historical structure body and the current structure body beyond the upper limit; when the target limit is a lower limit, respectively calculating the historical weight and the current weight of the reason for leading the low-voltage side bus voltage of the platform to be lower than the limit based on the high-voltage side bus voltage of the platform, the low-voltage side power factor of the platform and the load factor of the platform, which are respectively included by the historical structure body and the current structure body beyond the lower limit; and determining the priority of overcoming the corresponding measures of each reason in the current transformer area voltage regulation according to the historical weight and the current weight of each reason. When the bus voltage of the low-voltage side of the transformer area is out of limit, the scheme determines that the main reasons for causing the bus voltage of the low-voltage side of the transformer area to be out of limit are on the distribution transformer side, the user side or the upper power grid side through comprehensively analyzing the bus voltage of the high-voltage side of the transformer area, the power factor of the low-voltage side of the transformer area and the power reversal condition of the load factor, and obtains the historical weights and the current weights of the reasons, so that the priority of the corresponding measures of the reasons in the current transformer area voltage regulation is determined, the targeted regulation based on the root cause of the bus voltage of the low-voltage side of the transformer area is realized, the repeated out-of-limit condition of the bus voltage of the low-voltage side of the transformer area is avoided, and a good regulation effect is achieved.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the related art, the drawings that are required to be used in the embodiments or the related technical descriptions will be briefly described, and it is apparent that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to the drawings without inventive effort for those skilled in the art.

FIG. 1 is a flow chart of a method for coordinated regulation of cell voltages in one embodiment;

FIG. 2 is a flow diagram of determining an upper cause historic weight in one embodiment;

FIG. 3 is a flow diagram of determining lower bound cause historic weights in one embodiment;

FIG. 4 is a block diagram illustrating a coordinated control device for a cell voltage according to an embodiment;

FIG. 5 is an internal block diagram of a coordinated bay voltage regulation system in one embodiment.

Detailed Description

The present application will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present application more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application.

Reference in the specification to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the application. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the described embodiments of the application may be combined with other embodiments.

The method for collaborative regulation and control of the voltage of the transformer area provided by the application can be executed by computer equipment and comprises the steps shown in figure 1:

Step S101, obtaining the bus voltage at the low-voltage side of the current transformer area.

The low-voltage side bus voltage of the current transformer area can be recorded as. If the bus voltage at the low voltage side of the current transformer areaIf the voltage is within the voltage qualified interval, the process may be ended, step S102 is not executed, and otherwise step S102 is executed.

Step S102, if the low-voltage side bus voltage of the current area exceeds the limit of the voltage qualified interval, the current structural body and a plurality of historical structural bodies are obtained.

Each structure comprises: the low-voltage side bus voltage of the transformer area, the high-voltage side bus voltage of the transformer area, the low-voltage side power factor of the transformer area, the load factor and the power inverting quantity of the low-voltage side bus of the transformer area at corresponding moments.

The voltage qualification interval comprises an upper limit and a lower limit, and the bus voltage of the low-voltage side of the current transformer areaWhen the upper limit of the voltage qualified zone is exceeded, the voltage of the low-voltage side bus of the current transformer area can be calledOver the upper limit, the bus voltage at the low-voltage side of the current transformer areaWhen the lower limit of the voltage qualified zone is exceeded, the voltage of the low-voltage side bus of the current transformer area can be calledThe lower limit.

When the bus voltage at the low voltage side of the current transformer areaWhen the time exceeds the limit, the specified period in the past can be obtained) In the interior, the interval is specified for a long time) The data at each sampling time includes the following data: bus voltage at low-voltage side of transformer area) Bus voltage at high-voltage side of transformer area) Low-voltage side power factor of station area) Load factor [ ]) Power inverting quantity of low-voltage side bus in station area). Setting commonsSampling time is taken as statistical standard to form a plurality of history structural bodies），。

Obtaining the bus voltage of the low-voltage side of the transformer area at the current moment) Bus voltage at high-voltage side of transformer area) Low-voltage side power factor of station area) Load factor [ ]) Power inverting quantity of low-voltage side bus in station area) The current structure is constructed based on the data of the current time.

Wherein, the appointed period is%) Time interval specification) All are manual setting values, and default values are respectively as follows: assigned period [ ]) For 30 days, the appointed time length is%) For 15 minutes, there were 2880 sampling times, and there were 2880 historical structures.

Step S103, determining out-of-limit historical structures from a plurality of historical structures based on whether the low-voltage side bus voltage of the transformer area contained in the historical structures crosses the target limit; the target limit is the limit of the voltage qualification zone of the current transformer area, which is the voltage of the low-voltage side bus.

When the target limit is the upper limit of the voltage qualified interval, the step S104 is entered; when the target limit is the lower limit of the voltage pass interval, the process proceeds to step S105.

If the bus voltage at the low voltage side of the current transformer areaThe upper limit history structure is defined as a history structure in which the low-voltage-side bus voltage of the contained bay exceeds the upper limit of the voltage pass section, and the upper limit history structure is arranged in the order of time from early to late, and is expressed as:、、、、、，。

If the bus voltage at the low voltage side of the current transformer area The lower limit history structure is defined as a history structure in which the low-voltage-side bus voltage of the contained bay exceeds the lower limit of the voltage pass section, and the lower limit history structure is arranged in the order of time from early to late, and is expressed as:、、、、、，。

step S104, based on the bus voltage of the high side of the platform area and the bus power dumping amount of the low side of the platform area, which are respectively included by the historical structure body and the current structure body beyond the upper limit, respectively calculating the historical weight and the current weight of the reason for leading the bus voltage of the low side of the platform area beyond the upper limit.

The reason for the upper limit of the low-side bus voltage of the bay may be any of the following: the high-voltage side bus voltage of the transformer area is larger than the upper limit set value of the high-voltage side bus voltage of the transformer area (which can be simply called as the upper limit of the high-voltage side bus voltage of the transformer area) and the power dumping amount of the low-voltage side bus of the transformer area is larger; these causes are referred to as an upper first cause and an upper second cause, respectively, in the present application.

Specifically, the historical weight of the first cause above the upper limit can be calculated based on the bus voltage of the high-voltage side of the transformer area and the bus power dumping amount of the low-voltage side of the transformer area which are included by the historical structure above the upper limit) And historical weight of the second reason beyond the upper limit). Based on the voltage of the high-voltage side bus of the transformer area and the power dumping quantity of the low-voltage side bus of the transformer area, which are included by the current structural body, the current weight of the first reason of the upper limit can be calculated) And the current weight of the second reason is higher than the upper limit）。

Step S105, based on the higher-limit historical structure and the current structure, respectively, including the high-side bus voltage of the bay, the low-side power factor of the bay, and the load factor, respectively, calculates the historical weight and the current weight of the cause of the lower limit bus voltage of the bay.

The reason for the lower limit of the low-side bus voltage of the bay may be any of the following: the high-voltage side bus voltage of the platform area is smaller than the lower limit set value of the high-voltage side bus voltage of the platform area (which can be simply called the lower limit of the high-voltage side bus voltage of the platform area), the low-voltage side power factor of the platform area is smaller than the lower power factor set value of the platform area (which can be simply called the lower limit of the low-voltage side power factor of the platform area), and the load factor is larger than the load factor set value (which can be simply called the upper limit of the load factor); these causes are referred to as a first cause lower than the limit, a second cause lower than the limit, and a third cause lower than the limit, respectively, in the present application.

Specifically, based on the high-side bus voltage of the transformer area, the low-side power factor of the transformer area and the load factor, which are included in the history structure below the lower limit, the history weight of the first cause below the lower limit can be calculated) Historical weight of second cause lower limit) And historical weight of third reason lower limit）。

Based on the high-side bus voltage of the transformer area, the low-side power factor of the transformer area and the load factor, the current weight of the first reason of the lower limit can be calculated) Current weight of the second cause below the limit) And the current weight of the third reason of lower limit）。

And S106, determining the priority of the corresponding measures for overcoming each reason in the current transformer area voltage regulation according to the historical weight and the current weight of each reason.

The comprehensive weight of each reason can be obtained according to the historical weight and the current weight of each reason, and the priority of overcoming the corresponding measures of each reason in the current transformer area voltage regulation is determined based on the relative size of the comprehensive weight of each reason; wherein, the larger the comprehensive weight is, the higher the priority of the measures for overcoming the corresponding reasons is.

For any reason, according to the historical weight and the current weight of the reason, the mode of obtaining the comprehensive weight of the reason can be to carry out weighted summation on the historical weight and the current weight of the reason to obtain the comprehensive weight of the reason; in the weighted summation, the weight corresponding to the historical weight can be marked as a, the weight corresponding to the current weight can be marked as b, the values of a and b can be manually set, a can be smaller than b, the default value of a can be 0.4, and the default value of b can be 0.6.

If the upper limit of the low-voltage side bus voltage of the transformer area is exceeded, the following steps can be executed:

Historical weights according to upper first cause And the current weightObtaining the comprehensive weight of the first reason of the upper limitAccording to historical weights of the second cause above the upper limitAnd the current weightObtaining the comprehensive weight of the second reason beyond the upper limit。

Comprehensive weight according to the upper-bound first causeAnd an upper limit on the composite weight of the second causeAnd determining the priority of the first reason corresponding measure overcoming the upper limit and the second reason corresponding measure overcoming the upper limit in the current transformer area voltage regulation, wherein the higher the comprehensive weight is, the higher the priority of the measure overcoming the corresponding reason is.

In particular, ifIn the current transformer area voltage regulation, the priority of the corresponding measures for overcoming the first reason beyond the upper limit (namely reducing the voltage of the high-voltage side bus of the transformer area) is higher, and the priority of the corresponding measures for overcoming the second reason beyond the upper limit (namely reducing the power dumping amount) is lower; based on this, the following regulatory advice may be output: preferentially reducing the bus voltage at the high-voltage side of the station area, and then reducing the power dumping quantity.

If it isThe priority of the corresponding measures for overcoming the first reason beyond the upper limit is lower, and the priority of the corresponding measures for overcoming the second reason beyond the upper limit is higher in the current district voltage regulation and control; based on this, the following regulatory advice may be output: preferentially reducing the power dump quantity and then reducing the voltage of the high-voltage side bus of the transformer area.

If the lower limit is reached to the low-side bus voltage of the transformer area, the following steps can be executed:

historical weights according to lower first cause And the current weightObtaining the comprehensive weight of the first reason lower limit; Historical weights according to lower bound second causeAnd the current weightObtaining the comprehensive weight of the second reason lower than the lower limit; Historical weights according to lower third causeAnd the current weightObtaining the comprehensive weight of the third reason lower limit。

Comprehensive weight according to lower first causeComprehensive weight of lower bound second causeComprehensive weighting with lower third causeDetermining the priority of the first cause corresponding measure overcoming the lower limit, the second cause corresponding measure overcoming the lower limit and the third cause corresponding measure overcoming the lower limit in the voltage regulation of the current station area; the greater the overall weight, the higher the priority of the measures to overcome the corresponding cause.

In particular, ifIn the current transformer area voltage regulation, the highest priority of the first cause corresponding measure (namely, lifting the transformer area high-voltage side bus voltage) for overcoming the lower limit, the lowest priority of the second cause corresponding measure (namely, increasing the transformer area low-voltage side reactive compensation delivery capacity) for overcoming the lower limit and the third cause corresponding measure (namely, cutting the partial load of the transformer area to other transformer areas) for overcoming the lower limit can be determined; based on this, the following regulatory advice may be output: and preferentially increasing the bus voltage of the high-voltage side of the transformer area, then increasing reactive compensation switching capacity of the low-voltage side of the transformer area, and finally cutting partial load to other transformer areas.

If it isThe method can determine that in the current transformer area voltage regulation, the priority of the corresponding measure against the lower limit first cause is highest, the priority of the corresponding measure against the lower limit third cause is highest, and the priority of the corresponding measure against the lower limit second cause is lowest; based on this, the following regulatory advice may be output: and (3) suggesting to preferentially increase the bus voltage of the high-voltage side of the transformer area, then cutting partial load to other transformer areas, and finally increasing reactive compensation delivery capacity of the low-voltage side of the transformer area.

If it isThe method can determine that in the current transformer area voltage regulation, the priority of the corresponding measure against the lower limit second cause is highest, the priority of the corresponding measure against the lower limit first cause is highest, and the priority of the corresponding measure against the lower limit third cause is lowest; based on this, the following regulatory advice may be output: and suggesting to preferentially increase reactive compensation switching capacity of the low-voltage side of the transformer area, then, lifting bus voltage of the high-voltage side of the transformer area, and finally, cutting partial load to other transformer areas.

If it isThe method can determine that in the current transformer area voltage regulation, the priority of the corresponding measure against the lower limit second cause is highest, the priority of the corresponding measure against the lower limit third cause is highest, and the priority of the corresponding measure against the lower limit first cause is lowest; based on this, the following regulatory advice may be output: and suggesting to preferentially increase reactive compensation switching capacity of the low-voltage side of the transformer area, cutting partial load to other transformer areas, and finally, lifting bus voltage of the high-voltage side of the transformer area.

If it isThe method can determine that in the current transformer area voltage regulation, the priority of the third cause corresponding measure overcoming the lower limit is highest, the priority of the first cause corresponding measure overcoming the lower limit is lower, and the priority of the second cause corresponding measure overcoming the lower limit is lowest; based on this, the following regulatory advice may be output: and (3) suggesting to cut partial load to other areas preferentially, then lifting the bus voltage of the high-voltage side of the area, and finally increasing reactive compensation delivery capacity of the low-voltage side of the area.

If it isThe method can determine that in the current transformer area voltage regulation, the priority of the third cause corresponding measure overcoming the lower limit is highest, the priority of the second cause corresponding measure overcoming the lower limit is lower, and the priority of the first cause corresponding measure overcoming the lower limit is lowest; based on this, the following regulatory advice may be output: and (3) cutting partial load to other areas, increasing reactive compensation switching capacity of the low-voltage side of the area, and finally increasing bus voltage of the high-voltage side of the area.

In the above-mentioned district voltage cooperation regulation and control method, when there is a limit crossing in district low-voltage side busbar voltage, through comprehensive analysis district high-voltage side busbar voltage, district low-voltage side power factor, load factor power reversal condition, confirm that the main cause that causes district low-voltage side busbar voltage to cross limit is on the side of distributing and changing, user side or upper-level electric wire netting, obtain the historical weight and the current weight of each cause, with this confirm overcome each cause corresponding measure in the priority level in the current district voltage regulation and control, realize the targeted regulation and control based on district low-voltage side busbar voltage cross limit root cause, avoid the district low-voltage side busbar voltage to appear the limit crossing condition repeatedly, have better regulation and control effect.

In one embodiment, calculating the historical weight for the reason causing the zone low side bus voltage to be above the upper bound based on the zone high side bus voltage and the zone low side bus power dump amount comprised by the above bound historical structure comprises: counting the number of structures with the higher-limit historical structures, wherein the high-voltage side bus voltage of the platform area is larger than the upper-limit set value of the high-voltage side bus voltage of the platform area, so as to obtain a first number; counting the number of structures with the power dumping quantity of the low-voltage side bus of the transformer area larger than zero in the historical structure with the upper limit to obtain a second number; obtaining a sum of the first number and the second number; the ratio of the first number to the sum is taken as the historical weight of the first reason over the upper limit, and the ratio of the second number to the sum is taken as the historical weight of the second reason over the upper limit.

The upper limit is the reason why the upper limit of the bus voltage of the high-voltage side of the transformer area causes the upper limit of the bus voltage of the low-voltage side of the transformer area, and the upper limit is the reason why the power of the bus power of the low-voltage side of the transformer area is reversed and causes the upper limit of the bus voltage of the low-voltage side of the transformer area.

This embodiment is described in connection with the steps shown in fig. 2:

Step S201, counting the high-voltage side bus voltage of the transformer area in the historical structure body beyond the upper limit ) Is larger than the upper limit set value of the high-voltage side bus voltage of the transformer area) The number of the structural bodies of the first number is obtained）。

Step S202, counting the power reversal value of the low-voltage side bus bar of the middle station area of the upper limit structure body) The number of the structural bodies larger than 0 is obtained to obtain a second number [ (]）。

Step S203, acquiring historical weights of the first reasonAcquiring historical weights of the second reason beyond the upper limit。

In one embodiment, calculating the current weight for the reason causing the zone low side bus voltage to be above the limit based on the zone high side bus voltage and the zone low side bus power dump amount comprised by the current structure comprises: if the voltage of the high-voltage side bus of the transformer area included in the current structural body is larger than the upper limit set value of the voltage of the high-voltage side bus of the transformer area, enabling the first letter to be equal to a first value, otherwise enabling the first letter to be equal to a second value; the first value is greater than the second value; if the power dumping quantity of the low-voltage side bus of the transformer area included in the current structural body is greater than zero, enabling the second letter to be equal to the first value, otherwise enabling the second letter to be equal to the second value; acquiring the sum of the first letter and the second letter; the ratio of the first letter to the sum value is taken as the current weight of the first reason over the upper limit, and the ratio of the second letter to the sum value is taken as the current weight of the second reason over the upper limit.

In the following description, the first value is 1, and the second value is 0:

specifically, if the high-side bus voltage of the transformer area of the current structure is [ ] ) Is larger than the upper limit set value of the high-voltage side bus voltage of the transformer area) The first letter is madeOtherwise the first letter。

If the power reversal value of the low-voltage side bus of the transformer area of the current structural body is [ ]) Greater than 0, the second letterOtherwise the second letter。

Acquiring current weights of upper first causeAcquiring the current weight of the second reason of the upper limit。

In one embodiment, calculating the historical weights for reasons that cause the zone low side bus voltage to be lower bound based on the zone high side bus voltage, the zone low side power factor, and the load factor that the lower bound historical structure includes, comprises: counting the number of structures, in which the high-voltage side bus voltage of the transformer area is smaller than the lower limit set value of the high-voltage side bus voltage of the transformer area, in the historical structure with the lower limit, so as to obtain a third number; counting the number of structures with the lower-limit historical structures, wherein the power factor of the low-voltage side of the platform area is smaller than the set value of the power factor of the low-voltage side of the platform area, so as to obtain a fourth number; counting the number of structures with the load rate larger than a load rate set value in the historical structures with the lower limit, and obtaining a fifth number; obtaining the sum value of the third quantity, the fourth quantity and the fifth quantity; the ratio of the third quantity to the sum is taken as the historical weight of the first reason below the lower limit, the ratio of the fourth quantity to the sum is taken as the historical weight of the second reason below the lower limit, and the ratio of the fifth quantity to the sum is taken as the historical weight of the third reason below the lower limit.

The lower limit is the reason why the lower limit of the high-voltage side bus voltage of the transformer area causes the lower limit of the low-voltage side bus voltage of the transformer area, the lower limit is the reason why the lower limit of the low-voltage side power factor of the transformer area causes the lower limit of the low-voltage side bus voltage of the transformer area, and the upper limit is the reason why the upper limit of the load factor causes the lower limit of the low-voltage side bus voltage of the transformer area.

This embodiment is described in connection with the steps shown in fig. 3:

Step S301, counting the high-voltage side bus voltage of the transformer area in the historical structure body beyond the lower limit ) Less than the lower limit set value of the high-voltage side bus voltage of the transformer area) The number of the structural bodies of the formula (I) is a third number）。

Step S302, counting the power factor of the low-voltage side of the middle station area of the lower limit structure body) Less than the power factor set value of the low-voltage side of the station area) The number of the structural bodies of the formula (I) is a fourth number）。

Step S303, counting the load rate of the lower limit structure body) Is larger than the set value of the load rate) The number of the structural bodies of the formula (I) is a fifth number）。

Step S304, obtaining the historical weight of the first reason of the lower limitHistorical weights for lower bound second causeHistorical weights for lower third cause。

In one embodiment, calculating the current weight for the reason causing the lower bound of the zone low side bus voltage based on the zone high side bus voltage, the zone low side power factor, and the load factor comprised by the current structure comprises: if the voltage of the high-voltage side bus of the transformer area included in the current structural body is smaller than the lower limit set value of the voltage of the high-voltage side bus of the transformer area, enabling the third letter to be equal to the first value, otherwise enabling the third letter to be equal to the second value; the first value is greater than the second value; if the power factor of the low-voltage side of the platform area included in the current structural body is smaller than the set value of the power factor of the low-voltage side of the platform area, enabling the fourth letter to be equal to the first value, otherwise enabling the fourth letter to be equal to the second value; if the load rate included in the current structural body is larger than the load rate set value, enabling the fifth letter to be equal to the first value, otherwise enabling the fifth letter to be equal to the second value; obtaining the sum value of the third letter, the fourth letter and the fifth letter; the ratio of the third letter to the sum value is taken as the current weight of the first reason below the lower limit, the ratio of the fourth letter to the sum value is taken as the current weight of the second reason below the lower limit, and the ratio of the fifth letter to the sum value is taken as the current weight of the third reason below the lower limit.

In the following description, the first value is 1, and the second value is 0:

if the bus voltage of the high-voltage side of the transformer area of the current structure body is [ ] ) Less than the lower limit set value of the high-voltage side bus voltage of the transformer area) Let the third letterOtherwise the third letter。

If the power factor of the low-voltage side of the station area of the current structure body is #, the power factor of the low-voltage side of the station area of the current structure body) Less than the power factor set value of the low-voltage side of the middle station area) Let the fourth letterOtherwise the fourth letter。

If the load rate of the current structure body is [ ]) Is larger than the set value of the medium load rate) Let the fifth letterOtherwise the fifth letter。

Acquiring current weight of first cause of lower limitCurrent weight of lower bound second causeCurrent weight for lower third reason。

The voltage qualification interval mentioned above is an artificial setting value, and the default value is [353V,409V ]. Upper limit set value of bus voltage at high voltage side of transformer area) The default value is 10.7kV for the manual setting value. Low-limit set value of bus voltage at high-voltage side of transformer area) The default value is 9.3kV for the manual setting value. Power factor set value at low-voltage side of station area) The default value is 0.8 for the manual setting value. Load factor set point [ ]) The default value is 80% for the manual setting value.

In one embodiment, if the voltage of the low-voltage side bus of a certain area is out of limit at 18:00 of 12 th year 2023, the regulation is needed.

In this case, data at each sampling instant of 15 minutes from the last 30 days can be acquired, including the following data: bus voltage at low-voltage side of transformer area) Bus voltage at high-voltage side of transformer area) Low-voltage side power factor of station area) Load factor [ ]) Power reversal value of low-voltage side bus in transformer area). Setting commonsSampling time is taken as statistical standard to form a plurality of history structural bodies）。

Obtaining the bus voltage of the low-voltage side of the transformer area at the current moment) Bus voltage at high-voltage side of transformer area) Low-voltage side power factor of station area) Load factor [ ]) Power reversal value of low-voltage side bus in transformer area）。

By the method provided by the application, the historical weight of the first reason beyond the lower limit can be calculated) Historical weight of second cause lower limit) Historical weight of third cause lower limit）。

By the method provided by the application, the current weight of the first reason of the lower limit can be calculated) Current weight of the second cause below the limit) Current weight of third cause below limit）。

The historical weight and the current weight of each reason are weighted and summed according to a=0.4 and b=0.6, and the comprehensive weight of the first reason with the lower limit is obtained as followsThe comprehensive weight of the second reason is lower than the limitThe third reason is lower than the comprehensive weight of。

Because ofThe method can determine that in the current transformer area voltage regulation, the priority of the third cause corresponding measure overcoming the lower limit is highest, the priority of the first cause corresponding measure overcoming the lower limit is lower, and the priority of the second cause corresponding measure overcoming the lower limit is lowest; based on this, the following regulatory advice may be output: and (3) suggesting to cut partial load to other areas preferentially, then lifting the bus voltage of the high-voltage side of the area, and finally increasing reactive compensation delivery capacity of the low-voltage side of the area.

It should be understood that, although the steps in the flowcharts related to the embodiments described above are sequentially shown as indicated by arrows, these steps are not necessarily sequentially performed in the order indicated by the arrows. The steps are not strictly limited to the order of execution unless explicitly recited herein, and the steps may be executed in other orders. Moreover, at least some of the steps in the flowcharts described in the above embodiments may include a plurality of steps or a plurality of stages, which are not necessarily performed at the same time, but may be performed at different times, and the order of the steps or stages is not necessarily performed sequentially, but may be performed alternately or alternately with at least some of the other steps or stages.

Based on the same inventive concept, the embodiment of the application also provides a device for realizing the above-mentioned method for regulating and controlling the voltage of the transformer area. The implementation scheme of the solution provided by the device is similar to the implementation scheme described in the above method, so the specific limitation in the embodiments of the one or more platform region voltage cooperative regulation devices provided below may refer to the limitation of the platform region voltage cooperative regulation method hereinabove, and will not be repeated herein.

In one embodiment, as shown in fig. 4, there is provided a coordinated regulation device for a cell voltage, including:

The voltage acquisition module 401 is configured to acquire a low-voltage side bus voltage of a current transformer area;

a structure obtaining module 402, configured to obtain a current structure and a plurality of historical structures if the low-voltage side bus voltage of the current transformer area exceeds the limit of the voltage qualification interval; each structure comprises: the low-voltage side bus voltage of the transformer area, the high-voltage side bus voltage of the transformer area, the low-voltage side power factor of the transformer area, the load factor and the power inverting quantity of the low-voltage side bus of the transformer area at corresponding moments;

An out-of-limit structure determination module 403 configured to determine an out-of-limit history structure among a plurality of history structures based on whether or not the platform low-voltage side bus voltage contained in the history structure crosses a target limit; the target limit is the limit of the voltage qualification interval of the bus voltage at the low voltage side of the current transformer area;

A weight calculation module 404, configured to calculate, when the target limit is an upper limit, a historical weight and a current weight of a cause of the upper limit of the bus voltage of the low voltage side of the bay, based on the bus voltage of the high voltage side of the bay and the bus power dump amount of the low voltage side of the bay, which are included in the historical structure and the current structure, respectively;

The weight calculation module 404 is further configured to, when the target limit is a lower limit, calculate, based on the higher-voltage-side bus voltage of the bay, the lower-voltage-side power factor of the bay, and the load factor of the bay, which are included in the historical structure and the current structure, respectively, a historical weight and a current weight of a cause that the lower-voltage-side bus voltage of the bay is lower than the limit;

the regulation processing module 405 is configured to determine, according to the historical weight and the current weight of each cause, a priority of overcoming the corresponding measure of each cause in the current transformer area voltage regulation.

In one embodiment, the weight calculation module 404 is further configured to: counting the number of structures with the higher-limit historical structures, wherein the high-voltage side bus voltage of the platform area is larger than the upper-limit set value of the high-voltage side bus voltage of the platform area, so as to obtain a first number; counting the number of structures with the power dumping quantity of the low-voltage side bus of the transformer area larger than zero in the historical structure with the upper limit to obtain a second number; obtaining a sum of the first number and the second number; taking the ratio of the first quantity to the sum value as the historical weight of the first reason beyond the upper limit, and taking the ratio of the second quantity to the sum value as the historical weight of the second reason beyond the upper limit; the upper limit is the reason why the upper limit of the bus voltage of the high-voltage side of the transformer area causes the upper limit of the bus voltage of the low-voltage side of the transformer area, and the upper limit is the reason why the power of the bus power of the low-voltage side of the transformer area is reversed and causes the upper limit of the bus voltage of the low-voltage side of the transformer area.

In one embodiment, the weight calculation module 404 is further configured to: if the voltage of the high-voltage side bus of the transformer area included in the current structural body is larger than the upper limit set value of the voltage of the high-voltage side bus of the transformer area, enabling the first letter to be equal to a first value, otherwise enabling the first letter to be equal to a second value; the first value is greater than the second value; if the power dumping quantity of the low-voltage side bus of the transformer area included in the current structural body is greater than zero, enabling the second letter to be equal to the first value, otherwise enabling the second letter to be equal to the second value; acquiring the sum of the first letter and the second letter; the ratio of the first letter to the sum value is taken as the current weight of the first reason over the upper limit, and the ratio of the second letter to the sum value is taken as the current weight of the second reason over the upper limit.

In one embodiment, the regulation processing module 405 is further configured to: obtaining the comprehensive weight of the first reason beyond the upper limit according to the historical weight and the current weight of the first reason beyond the upper limit; obtaining comprehensive weights of the second reasons exceeding the upper limit according to the historical weights and the current weights of the second reasons exceeding the upper limit; determining the priority of the countermeasures against the first reason above the upper limit and the countermeasures against the second reason above the upper limit in the current transformer area voltage regulation according to the relative magnitudes of the comprehensive weights of the first reason above the upper limit and the comprehensive weights of the second reason above the upper limit; the greater the overall weight, the higher the priority of the measures to overcome the corresponding cause.

In one embodiment, the weight calculation module 404 is further configured to: counting the number of structures, in which the high-voltage side bus voltage of the transformer area is smaller than the lower limit set value of the high-voltage side bus voltage of the transformer area, in the historical structure with the lower limit, so as to obtain a third number; counting the number of structures with the lower-limit historical structures, wherein the power factor of the low-voltage side of the platform area is smaller than the set value of the power factor of the low-voltage side of the platform area, so as to obtain a fourth number; counting the number of structures with the load rate larger than a load rate set value in the historical structures with the lower limit, and obtaining a fifth number; obtaining the sum value of the third quantity, the fourth quantity and the fifth quantity; taking the ratio of the third quantity to the sum value as the historical weight of the first reason below the lower limit, taking the ratio of the fourth quantity to the sum value as the historical weight of the second reason below the lower limit, and taking the ratio of the fifth quantity to the sum value as the historical weight of the third reason below the lower limit; the lower limit is the reason why the lower limit of the high-voltage side bus voltage of the transformer area causes the lower limit of the low-voltage side bus voltage of the transformer area, the lower limit is the reason why the lower limit of the low-voltage side power factor of the transformer area causes the lower limit of the low-voltage side bus voltage of the transformer area, and the upper limit is the reason why the upper limit of the load factor causes the lower limit of the low-voltage side bus voltage of the transformer area.

In one embodiment, the weight calculation module 404 is further configured to: if the voltage of the high-voltage side bus of the transformer area included in the current structural body is smaller than the lower limit set value of the voltage of the high-voltage side bus of the transformer area, enabling the third letter to be equal to the first value, otherwise enabling the third letter to be equal to the second value; the first value is greater than the second value; if the power factor of the low-voltage side of the platform area included in the current structural body is smaller than the set value of the power factor of the low-voltage side of the platform area, enabling the fourth letter to be equal to the first value, otherwise enabling the fourth letter to be equal to the second value; if the load rate included in the current structural body is larger than the load rate set value, enabling the fifth letter to be equal to the first value, otherwise enabling the fifth letter to be equal to the second value; obtaining the sum value of the third letter, the fourth letter and the fifth letter; the ratio of the third letter to the sum value is taken as the current weight of the first reason below the lower limit, the ratio of the fourth letter to the sum value is taken as the current weight of the second reason below the lower limit, and the ratio of the fifth letter to the sum value is taken as the current weight of the third reason below the lower limit.

In one embodiment, the regulation processing module 405 is further configured to: obtaining the comprehensive weight of the first reason of the lower limit according to the historical weight and the current weight of the first reason of the lower limit; obtaining the comprehensive weight of the second reason lower than the limit according to the historical weight and the current weight of the second reason lower than the limit; obtaining the comprehensive weight of the third reason of the lower limit according to the historical weight and the current weight of the third reason of the lower limit; determining the priority of the corresponding measures for overcoming the first reasons below the lower limit, the corresponding measures for overcoming the second reasons below the lower limit and the corresponding measures for overcoming the third reasons below the lower limit in the current transformer area voltage regulation according to the relative magnitudes of the comprehensive weights of the first reasons below the lower limit, the comprehensive weights of the second reasons below the lower limit and the comprehensive weights of the third reasons below the lower limit; the greater the overall weight, the higher the priority of the measures to overcome the corresponding cause.

All or part of each module in the platform region voltage cooperative regulation device can be realized by software, hardware and a combination thereof. The modules can be embedded in or independent of a processor in the platform region voltage cooperative regulation system in a hardware mode, and can also be stored in a memory in the platform region voltage cooperative regulation system in a software mode, so that the processor can conveniently call and execute operations corresponding to the modules.

In an exemplary embodiment, a coordinated bay voltage regulation system is provided, the internal structure of which may be as shown in fig. 5. The platform region voltage cooperative regulation system comprises a processor, a memory, an Input/Output interface (I/O) and a communication interface. The processor, the memory and the input/output interface are connected through a system bus, and the communication interface is connected to the system bus through the input/output interface. Wherein the processor of the zone voltage coordinated regulation system is used to provide computing and control capabilities. The memory of the district voltage cooperative regulation system comprises a nonvolatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, computer programs, and a database. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage media. The database of the district voltage cooperative regulation system is used for storing data related to the method. The input/output interface of the district voltage cooperative regulation system is used for exchanging information between the processor and the external equipment. The communication interface of the district voltage cooperative regulation and control system is used for communicating with an external terminal through network connection. The computer program when executed by a processor is used for realizing a coordinated regulation and control method of the cell voltage.

It will be appreciated by those skilled in the art that the structure shown in fig. 5 is merely a block diagram of a portion of the structure associated with the present inventive arrangements and is not limiting of the district voltage cooperative regulation system to which the present inventive arrangements are applied, and that a particular district voltage cooperative regulation system may include more or less components than those shown in the drawings, or may combine some components, or have a different arrangement of components.

In one embodiment, a coordinated regulation system for a voltage of a platform is provided, including a memory and a processor, where the memory stores a computer program, and the processor implements the steps in the above method embodiments when executing the computer program.

In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored which, when executed by a processor, carries out the steps of the respective method embodiments described above.

In one embodiment, a computer program product is provided, on which a computer program is stored, which computer program is executed by a processor for performing the steps of the various method embodiments described above.

Those skilled in the art will appreciate that implementing all or part of the above described methods may be accomplished by way of a computer program stored on a non-transitory computer readable storage medium, which when executed, may comprise the steps of the embodiments of the methods described above. Any reference to memory, database, or other medium used in embodiments provided herein may include at least one of non-volatile and volatile memory. The nonvolatile Memory may include Read-Only Memory (ROM), magnetic tape, floppy disk, flash Memory, optical Memory, high density embedded nonvolatile Memory, resistive random access Memory (ReRAM), magneto-resistive random access Memory (Magnetoresistive Random Access Memory, MRAM), ferroelectric Memory (Ferroelectric Random Access Memory, FRAM), phase change Memory (PHASE CHANGE Memory, PCM), graphene Memory, and the like. Volatile memory can include random access memory (Random Access Memory, RAM) or external cache memory, and the like. By way of illustration, and not limitation, RAM can be in various forms such as static random access memory (Static Random Access Memory, SRAM) or dynamic random access memory (Dynamic Random Access Memory, DRAM), etc. The databases referred to in the embodiments provided herein may include at least one of a relational database and a non-relational database. The non-relational database may include, but is not limited to, a blockchain-based distributed database, and the like. The processor referred to in the embodiments provided in the present application may be a general-purpose processor, a central processing unit, a graphics processor, a digital signal processor, a programmable logic unit, a data processing logic unit based on quantum computing, or the like, but is not limited thereto.

The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The foregoing examples illustrate only a few embodiments of the application and are described in detail herein without thereby limiting the scope of the application. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the application, which are all within the scope of the application. Accordingly, the scope of the application should be assessed as that of the appended claims.

Claims

1. The method for cooperatively regulating and controlling the voltage of the station area is characterized by comprising the following steps of:

When the target limit is an upper limit, calculating a historical weight of a cause of the upper limit of the zone low-voltage side bus voltage based on the zone high-voltage side bus voltage and the zone low-voltage side bus power dump amount included in the upper limit history structure, including: counting the number of structures with the higher-limit historical structures, wherein the high-voltage side bus voltage of the platform area is larger than the upper-limit set value of the high-voltage side bus voltage of the platform area, so as to obtain a first number; counting the number of structures with the power dumping quantity of the low-voltage side bus of the transformer area larger than zero in the historical structure with the upper limit to obtain a second number; obtaining a sum of the first number and the second number; taking the ratio of the first quantity to the sum value as the historical weight of the first reason beyond the upper limit, and taking the ratio of the second quantity to the sum value as the historical weight of the second reason beyond the upper limit;

When the target limit is an upper limit, calculating a current weight of a cause of the upper limit of the zone low-voltage side bus voltage based on the zone high-voltage side bus voltage and the zone low-voltage side bus power dump amount included in the current structural body, including: if the voltage of the high-voltage side bus of the transformer area included in the current structural body is larger than the upper limit set value of the voltage of the high-voltage side bus of the transformer area, enabling the first letter to be equal to a first value, otherwise enabling the first letter to be equal to a second value; the first value is greater than the second value; if the power dumping quantity of the low-voltage side bus of the transformer area included in the current structural body is greater than zero, enabling the second letter to be equal to the first value, otherwise enabling the second letter to be equal to the second value; acquiring the sum of the first letter and the second letter; taking the ratio of the first letter to the sum value as the current weight of the first reason beyond the upper limit, and taking the ratio of the second letter to the sum value as the current weight of the second reason beyond the upper limit; the upper limit is the reason that the upper limit of the bus voltage of the high-voltage side of the station area causes the upper limit of the bus voltage of the low-voltage side of the station area, and the upper limit is the reason that the power of the bus of the low-voltage side of the station area is reversed, causes the upper limit of the bus voltage of the low-voltage side of the station area;

When the target limit is a lower limit, calculating a historical weight of a cause of the lower limit of the zone low-voltage side bus voltage based on the zone high-voltage side bus voltage, the zone low-voltage side power factor and the load factor included in the lower limit history structure, including: counting the number of structures, in which the high-voltage side bus voltage of the transformer area is smaller than the lower limit set value of the high-voltage side bus voltage of the transformer area, in the historical structure with the lower limit, so as to obtain a third number; counting the number of structures with the lower-limit historical structures, wherein the power factor of the low-voltage side of the platform area is smaller than the set value of the power factor of the low-voltage side of the platform area, so as to obtain a fourth number; counting the number of structures with the load rate larger than a load rate set value in the historical structures with the lower limit, and obtaining a fifth number; obtaining the sum value of the third quantity, the fourth quantity and the fifth quantity; taking the ratio of the third quantity to the sum value as the historical weight of the first reason below the lower limit, taking the ratio of the fourth quantity to the sum value as the historical weight of the second reason below the lower limit, and taking the ratio of the fifth quantity to the sum value as the historical weight of the third reason below the lower limit;

When the target limit is a lower limit, calculating a current weight of a cause of the lower limit of the zone low-voltage side bus voltage based on the zone high-voltage side bus voltage, the zone low-voltage side power factor and the load factor included in the current structural body, including: if the voltage of the high-voltage side bus of the transformer area included in the current structural body is smaller than the lower limit set value of the voltage of the high-voltage side bus of the transformer area, enabling the third letter to be equal to the first value, otherwise enabling the third letter to be equal to the second value; the first value is greater than the second value; if the power factor of the low-voltage side of the platform area included in the current structural body is smaller than the set value of the power factor of the low-voltage side of the platform area, enabling the fourth letter to be equal to the first value, otherwise enabling the fourth letter to be equal to the second value; if the load rate included in the current structural body is larger than the load rate set value, enabling the fifth letter to be equal to the first value, otherwise enabling the fifth letter to be equal to the second value; obtaining the sum value of the third letter, the fourth letter and the fifth letter; taking the ratio of the third letter to the sum value as the current weight of the first reason below the lower limit, taking the ratio of the fourth letter to the sum value as the current weight of the second reason below the lower limit, and taking the ratio of the fifth letter to the sum value as the current weight of the third reason below the lower limit; the lower limit first cause is that the lower limit of the bus voltage of the high-voltage side of the platform is the lower limit of the bus voltage of the low-voltage side of the platform, the lower limit second cause is that the lower limit of the power factor of the low-voltage side of the platform is the lower limit of the bus voltage of the low-voltage side of the platform, and the lower limit third cause is that the upper limit of the load ratio is the lower limit of the bus voltage of the low-voltage side of the platform;

According to the historical weight and the current weight of each reason, determining the priority of overcoming the corresponding measures of each reason in the current transformer area voltage regulation, comprising the following steps: according to the historical weight and the current weight of each reason, comprehensive weight of each reason is obtained, and the priority of overcoming corresponding measures of each reason in the current transformer area voltage regulation is determined based on the relative size of the comprehensive weight of each reason; wherein, the larger the comprehensive weight is, the higher the priority of the measures for overcoming the corresponding reasons is.

2. The method of claim 1, wherein deriving the composite weight for each cause based on the historical weight and the current weight for each cause comprises:

And for any reason, carrying out weighted summation on the historical weight and the current weight of the reason to obtain the comprehensive weight of the reason.

3. The method of claim 2, wherein the historical weights are given less weight than the current weights.

4. The method of claim 1, wherein obtaining a current structure and a number of historical structures comprises:

Acquiring data of each sampling moment of a specified time interval in a specified period in the past; the data for each sampling instant includes: the low-voltage side bus voltage of the transformer area, the high-voltage side bus voltage of the transformer area, the low-voltage side power factor of the transformer area, the load factor and the reverse power supply of the low-voltage side bus of the transformer area at the sampling moment;

taking the sampling time as a statistical standard to obtain a plurality of historical structures;

And obtaining the current structural body according to the low-voltage side bus voltage of the transformer area, the high-voltage side bus voltage of the transformer area, the low-voltage side power factor of the transformer area, the load factor and the power inverting quantity of the low-voltage side bus of the transformer area at the current moment.

5. A coordinated regulation device for a voltage of a station area, the device comprising:

And a weight calculation module for calculating, when the target limit is an upper limit, a historical weight of a cause of the upper limit of the zone low-voltage side bus voltage based on the zone high-voltage side bus voltage and the zone low-voltage side bus power dump amount included in the upper limit history structure, including: counting the number of structures with the higher-limit historical structures, wherein the high-voltage side bus voltage of the platform area is larger than the upper-limit set value of the high-voltage side bus voltage of the platform area, so as to obtain a first number; counting the number of structures with the power dumping quantity of the low-voltage side bus of the transformer area larger than zero in the historical structure with the upper limit to obtain a second number; obtaining a sum of the first number and the second number; taking the ratio of the first quantity to the sum value as the historical weight of the first reason beyond the upper limit, and taking the ratio of the second quantity to the sum value as the historical weight of the second reason beyond the upper limit;

The weight calculating module is further configured to calculate, when the target limit is an upper limit, a current weight for a reason that the bus voltage on the low-voltage side of the transformer area exceeds the upper limit, based on the bus voltage on the high-voltage side of the transformer area and the bus power dump amount on the low-voltage side of the transformer area included in the current structural body, where the weight calculating module includes: if the voltage of the high-voltage side bus of the transformer area included in the current structural body is larger than the upper limit set value of the voltage of the high-voltage side bus of the transformer area, enabling the first letter to be equal to a first value, otherwise enabling the first letter to be equal to a second value; the first value is greater than the second value; if the power dumping quantity of the low-voltage side bus of the transformer area included in the current structural body is greater than zero, enabling the second letter to be equal to the first value, otherwise enabling the second letter to be equal to the second value; acquiring the sum of the first letter and the second letter; taking the ratio of the first letter to the sum value as the current weight of the first reason beyond the upper limit, and taking the ratio of the second letter to the sum value as the current weight of the second reason beyond the upper limit; the upper limit is the reason that the upper limit of the bus voltage of the high-voltage side of the station area causes the upper limit of the bus voltage of the low-voltage side of the station area, and the upper limit is the reason that the power of the bus of the low-voltage side of the station area is reversed, causes the upper limit of the bus voltage of the low-voltage side of the station area;

The weight calculation module is further configured to calculate, when the target limit is a lower limit, a historical weight of a cause of the lower limit of the low-voltage side bus voltage of the bay based on the high-voltage side bus voltage of the bay, the low-voltage side power factor of the bay, and the load factor, which are included in the lower limit history structure, including: counting the number of structures, in which the high-voltage side bus voltage of the transformer area is smaller than the lower limit set value of the high-voltage side bus voltage of the transformer area, in the historical structure with the lower limit, so as to obtain a third number; counting the number of structures with the lower-limit historical structures, wherein the power factor of the low-voltage side of the platform area is smaller than the set value of the power factor of the low-voltage side of the platform area, so as to obtain a fourth number; counting the number of structures with the load rate larger than a load rate set value in the historical structures with the lower limit, and obtaining a fifth number; obtaining the sum value of the third quantity, the fourth quantity and the fifth quantity; taking the ratio of the third quantity to the sum value as the historical weight of the first reason below the lower limit, taking the ratio of the fourth quantity to the sum value as the historical weight of the second reason below the lower limit, and taking the ratio of the fifth quantity to the sum value as the historical weight of the third reason below the lower limit;

The weight calculating module is further configured to calculate, when the target limit is a lower limit, a current weight for a reason that the low-voltage side bus voltage of the transformer area is lower than the lower limit, based on the high-voltage side bus voltage of the transformer area, the low-voltage side power factor of the transformer area, and the load factor, where the current structure includes: if the voltage of the high-voltage side bus of the transformer area included in the current structural body is smaller than the lower limit set value of the voltage of the high-voltage side bus of the transformer area, enabling the third letter to be equal to the first value, otherwise enabling the third letter to be equal to the second value; the first value is greater than the second value; if the power factor of the low-voltage side of the platform area included in the current structural body is smaller than the set value of the power factor of the low-voltage side of the platform area, enabling the fourth letter to be equal to the first value, otherwise enabling the fourth letter to be equal to the second value; if the load rate included in the current structural body is larger than the load rate set value, enabling the fifth letter to be equal to the first value, otherwise enabling the fifth letter to be equal to the second value; obtaining the sum value of the third letter, the fourth letter and the fifth letter; taking the ratio of the third letter to the sum value as the current weight of the first reason below the lower limit, taking the ratio of the fourth letter to the sum value as the current weight of the second reason below the lower limit, and taking the ratio of the fifth letter to the sum value as the current weight of the third reason below the lower limit; the lower limit first cause is that the lower limit of the bus voltage of the high-voltage side of the platform is the lower limit of the bus voltage of the low-voltage side of the platform, the lower limit second cause is that the lower limit of the power factor of the low-voltage side of the platform is the lower limit of the bus voltage of the low-voltage side of the platform, and the lower limit third cause is that the upper limit of the load ratio is the lower limit of the bus voltage of the low-voltage side of the platform;

The regulation processing module is used for determining the priority level of the corresponding measures for overcoming each reason in the current transformer area voltage regulation according to the historical weight and the current weight of each reason, and comprises the following steps: according to the historical weight and the current weight of each reason, comprehensive weight of each reason is obtained, and the priority of overcoming corresponding measures of each reason in the current transformer area voltage regulation is determined based on the relative size of the comprehensive weight of each reason; wherein, the larger the comprehensive weight is, the higher the priority of the measures for overcoming the corresponding reasons is.

6. The apparatus of claim 5, wherein the conditioning processing module is further configured to:

7. The apparatus of claim 6, wherein the historical weights are given less weight than the current weights.

8. The apparatus of claim 5, wherein the structure acquisition module is further configured to:

9. A coordinated regulation system of cell voltages, comprising a memory and a processor, said memory storing a computer program, characterized in that the processor implements the method of any of claims 1 to 4 when executing said computer program.

10. A computer readable storage medium, on which a computer program is stored, characterized in that the computer program, when being executed by a processor, implements the method of any of claims 1 to 4.