CN113792995B - Method, device, equipment and storage medium for determining power resource dominance degree - Google Patents
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Abstract
The application relates to the technical field of power and provides a method, a device, equipment and a medium for determining the dominance degree of power resources. The method and the device can objectively, accurately and practically evaluate the power resource dominance degree of the power resource provider. The method comprises the following steps: determining a blocked power transmission line at a set moment, acquiring a power flow relief demand of the blocked power transmission line, acquiring a power flow relief quantity of a generator set belonging to a power resource provider in the blocked power transmission line, then obtaining a power flow relief factor of the generator set of the power resource provider on the blocked power transmission line at the set moment according to the ratio of the power flow relief quantity to the power flow relief demand, and finally determining the power resource dominance degree of the power resource provider based on the power flow relief factor.
Description
Technical Field
The present invention relates to the field of power technologies, and in particular, to a method, an apparatus, a computer device, and a storage medium for determining a power resource dominance.
Background
At present, a power resource dominance quantification mode is mainly measured through supply and demand relations of power resources, for example, power resources which can be supplied by power resource providers such as a single power plant or a group are calculated and compared with a total value of power resource demands, and the power resource dominance of each power resource provider is determined according to a proportion value.
However, there is a great difference between the power resources and the general resources, the power resources cannot be stored and can only be transported through the power network, and the capacity of a single line, section or node in the power network to carry power is limited, and the transmission of the power is similar to a highway, but is far more complex than the highway, and includes a plurality of boundary condition limitations such as current limit, blockage, tide and thermal limit. Therefore, the accuracy of the current technology for evaluating the power resource dominance of the power resource provider is low, and the power resource dominance of each power resource provider cannot be accurately and objectively reflected.
Disclosure of Invention
In view of the foregoing, it is desirable to provide a method, an apparatus, a computer device, and a storage medium for determining a degree of power resource dominance.
A method of determining a degree of power resource dominance, the method comprising:
determining a blocked power transmission line at a set moment, and acquiring a tide relief demand of the blocked power transmission line;
obtaining the load flow alleviation quantity of a generator set belonging to a power resource provider in the blocked power transmission line;
according to the ratio of the power flow relief amount to the power flow relief demand amount, obtaining a power flow relief factor of the generator set of the power resource provider to the blocked transmission line at the set moment;
based on the power flow mitigation factor, a power resource dominance of the power resource provider is determined.
A device for determining a degree of dominance of a power resource, comprising:
the blocking line determining module is used for determining a blocking power transmission line at a set moment and acquiring the flow relief demand of the blocking power transmission line;
the release amount acquisition module is used for acquiring the load flow release amount of the generator set belonging to the power resource provider in the blocked power transmission line;
the relief factor obtaining module is used for obtaining the relief factor of the generator set of the power resource provider on the blocked transmission line at the set moment according to the ratio of the power flow relief amount to the power flow relief demand amount;
and the degree determining module is used for determining the power resource dominance degree of the power resource provider based on the tide relieving factor.
A computer device comprising a memory storing a computer program and a processor which when executing the computer program performs the steps of:
determining a blocked power transmission line at a set moment, and acquiring a tide relief demand of the blocked power transmission line; obtaining the load flow alleviation quantity of a generator set belonging to a power resource provider in the blocked power transmission line; according to the ratio of the power flow relief amount to the power flow relief demand amount, obtaining a power flow relief factor of the generator set of the power resource provider to the blocked transmission line at the set moment; based on the power flow mitigation factor, a power resource dominance of the power resource provider is determined.
A computer readable storage medium having stored thereon a computer program which when executed by a processor performs the steps of:
determining a blocked power transmission line at a set moment, and acquiring a tide relief demand of the blocked power transmission line; obtaining the load flow alleviation quantity of a generator set belonging to a power resource provider in the blocked power transmission line; according to the ratio of the power flow relief amount to the power flow relief demand amount, obtaining a power flow relief factor of the generator set of the power resource provider to the blocked transmission line at the set moment; based on the power flow mitigation factor, a power resource dominance of the power resource provider is determined.
The method, the device, the equipment and the medium for determining the power resource dominance determine the blocked power transmission line at the set moment, acquire the power flow alleviation demand of the blocked power transmission line, acquire the power flow alleviation quantity of the generator set belonging to the power resource provider in the blocked power transmission line, then obtain the power flow alleviation factor of the generator set of the power resource provider to the blocked power transmission line at the set moment according to the ratio of the power flow alleviation quantity to the power flow alleviation demand, and finally determine the power resource dominance of the power resource provider based on the power flow alleviation factor. The scheme takes the problem of line blockage in an actual power transmission scene as a guide, and evaluates the power resource dominance of each power resource provider to different lines at different times based on a quantitative calculation method considering line blockage and power grid power flow, so that the power resource dominance of the power resource provider can be evaluated more objectively, accurately and practically.
Drawings
FIG. 1 is a flow diagram of a method for determining a power resource dominance in an embodiment;
FIG. 2 is a block diagram of an apparatus for determining the extent of power resource dominance in an embodiment;
FIG. 3 is an internal block diagram of a computer device in one embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present application.
Part of the conceptual explanation referred to in this application:
and (3) tide: in power engineering, power flow refers to the distribution of voltage (including amplitude and phase angle), active power, reactive power and the like at all parts of a power grid;
line blocking: the upper limit of the transmission power of the transmission line exists, and when the power passing through the transmission line exceeds the safe load rate proportion of the maximum capacity transmitted by the transmission line, the transmission line can be considered to be blocked;
sensitivity factor: the influence factor of the generator set connected with the power transmission line on the power transmission line can be quantitatively evaluated, and can be generally defined as a change value of a corresponding power transmission line tide value when the power of the generator set rises by 1 unit power, wherein the value can be positive or negative, and can also be zero;
upstream/downstream units: means that the sensitivity factor is positive (upstream) or negative (downstream) for a certain transmission line;
tidal current relief demand: refers to the reduced tidal current value required by the transmission line with line blockage if the transmission line needs to fall back to or below the safe load ratio;
tidal current relief amount: the power flow value on a specific transmission line is reduced by changing the output value of the generator set;
tidal current relief factor: refers to the contribution degree of a specific unit to the flow relief requirement of a blocked line.
The method for determining the power resource dominance degree can be applied to computer equipment such as terminals and servers. The terminal may be, but not limited to, various personal computers, notebook computers, smart phones and tablet computers, and the server may be implemented by a separate server or a server cluster formed by a plurality of servers.
In one embodiment, as shown in fig. 1, a method for determining a power resource dominance is provided, which may include the steps of:
step S101, determining a blocked power transmission line at a set moment, and obtaining the flow relief demand of the blocked power transmission line.
The method mainly comprises the steps of determining a blocked transmission line at a certain moment and obtaining the tidal current relief demand of the blocked transmission line.
In one embodiment, the determining the blocking transmission line at the set time in step S101 specifically includes:
aiming at a set moment, acquiring a clear tide value of the power transmission line; determining the maximum load capacity of the power transmission line and the preset safe load rate proportion; if the clear tide current value is larger than or equal to the product of the maximum load capacity and the preset safety load rate proportion, determining that the transmission line is a blocked transmission line at the set moment.
Specifically, when determining that a line is blocked, at a certain set time t, the determination may be performed based on a relationship shown in the following formula:
F Li ≥C Li ×λ
wherein F is Li Represents the clear current value (day before/day in/clear in real time, clear with/without constraint) of the power transmission line i, C Li Represents the maximum load capacity of the transmission line i, lambda is a prescribed safety negativeThe ratio of the loading is generally between 0.85 and 0.95. Specifically, if the relationship shown in the above formula is established, the clear tide current value F is obtained Li Greater than or equal to maximum load capacity C Li And the product of the preset safe load rate proportion lambda, determining the power transmission line i as a blocked power transmission line.
Further, in one embodiment, the obtaining the flow relief demand of the blocked transmission line in step S101 specifically includes: and obtaining the load flow relief demand according to the difference value of the product of the moisture removal flow value, the maximum load capacity and the preset safety load rate proportion.
Specifically, if it is determined that the transmission line i is a blocked transmission line, the load flow relief demand R may be calculated by the following formula Li ：
R Li ＝F Li -C Li ×λ。
That is, when the transmission line i is determined to be a blocked transmission line, the out-clear tide current value F of the transmission line i can be calculated Li Maximum load capacity C with transmission line i Li And the product of the safe load rate proportion lambda is subjected to difference to obtain the load flow relief demand R Li 。
Step S102, obtaining the load flow alleviation quantity of a generator set belonging to a power resource provider in a blocked power transmission line;
the method mainly comprises the step of calculating the load flow alleviation quantity of the generator set belonging to the power resource provider in the blocked power transmission line. The generator set belonging to the power resource provider in the blocking power transmission line can be an upstream set or a downstream set.
In one embodiment, in the case that the generator set belonging to the power resource provider is an upstream set, step S102 specifically includes: acquiring a sensitivity factor of a generator set of a power resource provider to a blocked transmission line; acquiring a first difference value between an upper limit value of the output of a generator set of an electric power resource provider and the clearing output of the generator set; and obtaining the load flow relief amount according to the product of the sensitivity factor and the first difference value.
Specifically, for the upstream unit j, the load flow alleviation amount S thereof can be calculated by the following formula Uji ：
S Uji ＝σ ij ×(P max -P j )
Wherein sigma ij Representing the sensitivity factor, P, of the upstream unit j to the blocked transmission line i max The upper limit value, P, of the output of the generator set which is an electric power resource provider j To output the clearing force (day before/day in/real time clearing, with/without constraint clearing, but with the specific judgment of the clearing current value F of the blocked line in step S101) Li Belonging to the same set of clearing results). That is, the present embodiment acquires the sensitivity factor σ of the generator set of the power resource provider to the blocked power transmission line i ij Obtaining the output upper limit value P of a generator set of an electric power resource provider max And the clearing output P of the generator set j Is a first difference (P max -P j ) Then according to the sensitivity factor sigma ij And a first difference (P max -P j ) Is multiplied by (a) to obtain the load flow relief quantity S Uji 。
In another embodiment, in the case that the generator set belonging to the power resource provider is a downstream generator set, step S102 specifically includes: acquiring a sensitivity factor of the generator set to a blocked transmission line; acquiring a second difference value between the lower limit value of the output of the generator set and the clearing output of the generator set; and obtaining the load flow relief amount according to the product of the sensitivity factor and the second difference value.
Specifically, for the downstream unit j, the load flow alleviation amount S thereof can be calculated by the following formula Uji ：
S Uji ＝σ ij ×(P min -P j )
Wherein sigma ij Representing the sensitivity factor, P, of the downstream unit j to the blocked transmission line i min Lower limit value of output force, P, of generator set serving as power resource provider j To output the clearing force (day before/day in/real time clearing, with/without constraint clearing, but with the specific judgment of the clearing current value F of the blocked line in step S101) Li Belonging to the same set of clearing results). That is, the present embodiment acquires the sensitivity factor σ of the generator set of the power resource provider to the blocked power transmission line i ij Obtaining a lower limit value P of output force of a generator set of an electric power resource provider min And the clearing output P of the generator set j Is a second difference (P min -P j ) Then according to the sensitivity factor sigma ij And a second difference (P min -P j ) Is multiplied by (a) to obtain the load flow relief quantity S Uji 。
Step S103, according to the ratio of the tidal current relief amount to the tidal current relief demand amount, obtaining a tidal current relief factor of a generator set of the power resource provider on the blocked transmission line at a set moment;
specifically, the load flow alleviation factor of the generator set j of the power resource provider on the blocked transmission line i at the set moment can be calculated according to the following formula:
wherein RSI is ji And relieving the factor of the tide of the generator set j on the blocked transmission line i at the set moment.
Step S104, determining the power resource dominance degree of the power resource provider based on the tide mitigation factor.
The step can determine the power resource dominance degree of the power resource provider according to the specific size of the power flow relief factor, and the larger the power flow relief factor is, the larger the power resource dominance degree is generally considered, and the smaller the power flow relief factor is, the smaller the power resource dominance degree is generally considered.
The method for determining the power resource dominance comprises the steps of determining a blocked power transmission line at a set moment, obtaining a power flow alleviation demand of the blocked power transmission line, obtaining a power flow alleviation amount of a generator set belonging to a power resource provider in the blocked power transmission line, obtaining a power flow alleviation factor of the generator set of the power resource provider on the blocked power transmission line at the set moment according to the ratio of the power flow alleviation amount to the power flow alleviation demand, and determining the power resource dominance of the power resource provider based on the power flow alleviation factor. The scheme takes the problem of line blockage in an actual power transmission scene as a guide, and evaluates the power resource dominance of each power resource provider to different lines at different times based on a quantitative calculation method considering line blockage and power grid power flow, so that the power resource dominance of the power resource provider can be evaluated more objectively, accurately and practically.
In some embodiments, step S104 specifically includes: and determining a plurality of preset numerical intervals used for representing different power resource dominance degrees, and obtaining the power resource dominance degrees of the power resource provider according to the preset numerical intervals in which the tide relief factors fall.
The embodiment mainly carries out quantitative evaluation on the power resource dominance degree of a power resource provider on a specific blocked power transmission line i at a single set time t, and evaluates a calculated power flow relief factor RSI ji And the method can be realized. Specifically, the present embodiment may obtain a plurality of preset value intervals for characterizing different degrees of power resource dominance, for example, a preset value interval greater than or equal to 1, a preset value interval greater than b and less than 1, a preset value interval greater than a and less than b, and a preset value interval less than a, where a and b are typically specific values between 0 and 1, and a is less than b. Based on this:
when the tide relieves the factor RSI ji 1, determining that the power resource provider has great dominance on the power resource of the blocked power transmission line i and has dominance on the blocked power transmission line i; when b < RSI ji < 1, determining that the power resource provider has certain dominance on the blocked power transmission line i; when a < RSI ji < b, determining that the power resource provider has less dominance to the blocked transmission line i; when the tide relieves the factor RSI ji And < a, determining that the power resource provider does not have dominance on the blocked power transmission line i.
In other embodiments, step S104 specifically includes:
acquiring a tide relief quantity and a tide relief factor of a generator set of a power resource provider for each blocked power transmission line at each set moment in a set period; inputting the power flow relief quantity and the power flow relief factor of the generator set for each blocking transmission line at each set moment in a set period into a power resource dominance evaluation model to obtain the power resource dominance output by the power resource dominance evaluation model; wherein, the electric power resource dominance evaluation model is:
wherein PF is j The power resource control degree of the power resource provider is represented, T represents a set period, i represents serial numbers of each blocked transmission line, S Uji Representing the amount of flow relief, RSI ji Representing the tidal current mitigation factor.
In this embodiment, after calculating the load flow relief amount and the load flow relief factor of the unit to the line for several times within a period T, the data may be integrated by using the power resource dominance evaluation model as described above and the final power resource dominance PF may be calculated j . The embodiment mainly can realize the evaluation of the power resource dominance degree of each power resource provider involved in the calculation of all the blocked transmission lines in one time period T, and particularly can evaluate the corresponding power resource dominance degree PF j Implementation, as can calculate and depend on the power resource dominance PF of each power resource provider j The values of the power transmission lines are ordered, and the power resource dominance degree of each power resource provider for all the blocked power transmission lines in the whole period can be obtained, so that the power resource dominance degree of each power resource provider is quantitatively evaluated.
From the whole view of the application, the application breaks through the practical consideration of the nature of the power resource and the limitation that the calculation result is static in the prior art, which is lack of a method for evaluating the dominance degree of the power resource by using the supply and demand relation of the power resource, and can obtain the dominance degree characterization result of each power resource provider dynamically changing in time and space dimension by calculating the power resource provider judgment with different dominance degrees for different lines with blockage in different time periods. According to the method, the degree of the power resource provider on different lines can be estimated by considering the line blockage and the quantitative calculation method of the power grid trend, and the degree of the power resource provider on the power resource in the period can be comprehensively estimated according to a dynamic calculation result set of a period of time, so that the power resource degree of the power resource provider can be displayed more accurately, objectively and practically.
It should be understood that, although the steps in the flowcharts are shown in order as indicated by the arrows, these steps are not necessarily performed in order as 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 a portion of the steps in the flowcharts above may include a plurality of steps or stages that are not necessarily performed at the same time, but may be performed at different times, and the order of execution of the steps or stages is not necessarily sequential, but may be performed in rotation or alternately with at least a portion of the steps or stages in other steps or other steps.
In one embodiment, as shown in fig. 2, there is provided a determining apparatus of an electric power resource dominance, the apparatus 200 may include:
a blocking line determining module 201, configured to determine a blocking power transmission line at a set moment, and obtain a load flow alleviation demand of the blocking power transmission line;
a relief amount acquisition module 202, configured to acquire a load flow relief amount of a generator set belonging to a power resource provider in the blocked power transmission line;
a relief factor obtaining module 203, configured to obtain, according to the ratio of the load flow relief amount to the load flow relief demand amount, a load flow relief factor of the generator set of the power resource provider on the blocked transmission line at the set time;
a degree determination module 204 is configured to determine a power resource dominance degree of the power resource provider based on the power flow mitigation factor.
In one embodiment, the blocking line determining module 201 is configured to obtain, for the set time, a current value of the transmission line; determining the maximum load capacity of the power transmission line and the preset safe load rate proportion; and if the moisture removal flow value is larger than or equal to the product of the maximum load capacity and the preset safety load rate ratio, determining that the power transmission line is a blocked power transmission line at the set moment.
In one embodiment, the blocked line determining module 201 is configured to obtain the load flow alleviation requirement according to a difference value of the product of the out-tidal current value and the maximum load capacity and a preset safe load rate ratio.
In one embodiment, the generator set belonging to the power resource provider is an upstream set; a relief amount acquisition module 202, configured to acquire a sensitivity factor of the generator set to the blocked transmission line; acquiring a first difference value between an upper limit value of the output of the generator set and a clearing output of the generator set; and obtaining the load flow alleviation amount according to the product of the sensitivity factor and the first difference value.
In one embodiment, the generator set belonging to the power resource provider is a downstream set; a relief amount acquisition module 202, configured to acquire a sensitivity factor of the generator set to the blocked transmission line; acquiring a second difference value between the lower limit value of the output of the generator set and the clearing output of the generator set; and obtaining the load flow alleviation according to the product of the sensitivity factor and the second difference value.
In one embodiment, the degree determination module 204 is configured to determine a plurality of preset numerical intervals for characterizing the degrees of dominance of different power resources; and obtaining the power resource dominance degree of the power resource provider according to the preset numerical value interval in which the tide relieving factor falls.
In one embodiment, the degree determining module 204 is configured to obtain a load flow alleviation amount and a load flow alleviation factor of each blocked transmission line for each set moment in a set period of time by a generator set of the power resource provider; inputting the power flow release quantity and the power flow release factor of the generator set for each blocking transmission line at each set moment in a set period into a power resource dominance evaluation model to obtain the power resource dominance output by the power resource dominance evaluation model; wherein, the power resource dominance evaluation model is:
wherein PF is j The power resource control degree of the power resource provider is represented, T represents the set period, i represents the serial number of each blocked transmission line, S Uji Representing the load flow relief amount, RSI ji Representing the load flow mitigation factor.
The specific definition of the determining means for the degree of power resource dominance may be referred to the definition of the determining method for the degree of power resource dominance hereinabove, and will not be described in detail herein. The respective modules in the above-described determination means of the degree of power resource dominance may be implemented in whole or in part by software, hardware, and combinations thereof. The above modules may be embedded in hardware or may be independent of a processor in the computer device, or may be stored in software in a memory in the computer device, so that the processor may call and execute operations corresponding to the above modules.
In one embodiment, a computer device is provided, which may be a terminal, and the internal structure of which may be as shown in fig. 3. The computer device includes a processor, a memory, a communication interface, a display screen, and an input device connected by a system bus. Wherein the processor of the computer device is configured to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage media. The communication interface of the computer device is used for carrying out wired or wireless communication with an external terminal, and the wireless mode can be realized through WIFI, an operator network, NFC (near field communication) or other technologies. The computer program is executed by a processor to implement a method of determining a degree of power resource dominance. The display screen of the computer equipment can be a liquid crystal display screen or an electronic ink display screen, and the input device of the computer equipment can be a touch layer covered on the display screen, can also be keys, a track ball or a touch pad arranged on the shell of the computer equipment, and can also be an external keyboard, a touch pad or a mouse and the like.
It will be appreciated by those skilled in the art that the structure shown in fig. 3 is merely a block diagram of some of the structures associated with the present application and is not limiting of the computer device to which the present application may be applied, and that a particular computer device may include more or fewer components than shown, or may combine certain components, or have a different arrangement of components.
In an embodiment, there is also provided a computer device comprising a memory and a processor, the memory having stored therein a computer program, the processor implementing the steps of the method embodiments described above when the computer program is executed.
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 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, storage, 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, or the like. Volatile memory can include random access memory (Random Access Memory, RAM) or external cache memory. By way of illustration, and not limitation, RAM can be in the form of a variety of forms, such as static random access memory (Static Random Access Memory, SRAM) or dynamic random access memory (Dynamic RandomAccess Memory, DRAM), and the like.
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 above examples merely represent a few embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the invention. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application. Accordingly, the scope of protection of the present application is to be determined by the claims appended hereto.
Claims (6)
1. A method of determining a degree of power resource dominance, the method comprising:
determining a blocked power transmission line at a set moment, and acquiring a tide relief demand of the blocked power transmission line; the obtaining the tidal current relief demand of the blocked transmission line comprises the following steps: obtaining the load flow relief demand according to the difference value of the product of the clear tide current value, the maximum load capacity and the preset safety load rate proportion;
obtaining the load flow alleviation quantity of a generator set belonging to a power resource provider in the blocked power transmission line; when the generator set belonging to the power resource provider is an upstream set, the obtaining the load flow alleviation amount of the generator set belonging to the power resource provider in the blocking transmission line includes: acquiring a sensitivity factor of the generator set to the blocked transmission line; acquiring a first difference value between an upper limit value of the output of the generator set and a clearing output of the generator set; obtaining the load flow alleviation according to the product of the sensitivity factor and the first difference value; when the generator set belonging to the power resource provider is a downstream unit, the obtaining the load flow alleviation amount of the generator set belonging to the power resource provider in the blocked transmission line includes: acquiring a sensitivity factor of the generator set to the blocked transmission line; acquiring a second difference value between the lower limit value of the output of the generator set and the clearing output of the generator set; obtaining the load flow alleviation according to the product of the sensitivity factor and the second difference value;
according to the ratio of the power flow relief amount to the power flow relief demand amount, obtaining a power flow relief factor of the generator set of the power resource provider to the blocked transmission line at the set moment;
determining a power resource dominance of the power resource provider based on the power flow mitigation factor;
wherein the determining the power resource dominance of the power resource provider based on the power flow mitigation factor comprises:
acquiring the load flow relief quantity and the load flow relief factor of the generator set of the power resource provider for each blocked power transmission line at each set moment in a set period;
inputting the power flow release quantity and the power flow release factor of the generator set for each blocking transmission line at each set moment in a set period into a power resource dominance evaluation model to obtain the power resource dominance output by the power resource dominance evaluation model; wherein,
the power resource dominance assessment model is as follows:
wherein PF is j The power resource control degree of the power resource provider is represented, T represents the set period, i represents the serial number of each blocked transmission line, S Uji Representing the load flow relief amount, RSI ji Representing the tideThe factor is relieved.
2. The method of claim 1, wherein determining a blocked transmission line at a set time comprises:
aiming at the set time, acquiring a clear tide value of the power transmission line;
determining the maximum load capacity of the power transmission line and the preset safe load rate proportion;
and if the moisture removal flow value is larger than or equal to the product of the maximum load capacity and the preset safety load rate ratio, determining that the power transmission line is a blocked power transmission line at the set moment.
3. The method of claim 1, wherein the determining the power resource dominance of the power resource provider based on the power flow mitigation factor comprises:
determining a plurality of preset numerical intervals for characterizing different power resource dominance degrees;
and obtaining the power resource dominance degree of the power resource provider according to the preset numerical value interval in which the tide relieving factor falls.
4. A power resource dominance determination apparatus, comprising:
the blocking line determining module is used for determining a blocking power transmission line at a set moment and acquiring the flow relief demand of the blocking power transmission line; the obtaining the tidal current relief demand of the blocked transmission line comprises the following steps: obtaining the load flow relief demand according to the difference value of the product of the clear tide current value, the maximum load capacity and the preset safety load rate proportion;
the release amount acquisition module is used for acquiring the load flow release amount of the generator set belonging to the power resource provider in the blocked power transmission line; when the generator set belonging to the power resource provider is an upstream set, the obtaining the load flow alleviation amount of the generator set belonging to the power resource provider in the blocking transmission line includes: acquiring a sensitivity factor of the generator set to the blocked transmission line; acquiring a first difference value between an upper limit value of the output of the generator set and a clearing output of the generator set; obtaining the load flow alleviation according to the product of the sensitivity factor and the first difference value; when the generator set belonging to the power resource provider is a downstream unit, the obtaining the load flow alleviation amount of the generator set belonging to the power resource provider in the blocked transmission line includes: acquiring a sensitivity factor of the generator set to the blocked transmission line; acquiring a second difference value between the lower limit value of the output of the generator set and the clearing output of the generator set; obtaining the load flow alleviation according to the product of the sensitivity factor and the second difference value;
the relief factor obtaining module is used for obtaining the relief factor of the generator set of the power resource provider on the blocked transmission line at the set moment according to the ratio of the power flow relief amount to the power flow relief demand amount;
a degree determination module for determining a power resource dominance degree of the power resource provider based on the power flow mitigation factor;
wherein the determining the power resource dominance of the power resource provider based on the power flow mitigation factor comprises:
acquiring the load flow relief quantity and the load flow relief factor of the generator set of the power resource provider for each blocked power transmission line at each set moment in a set period;
inputting the power flow release quantity and the power flow release factor of the generator set for each blocking transmission line at each set moment in a set period into a power resource dominance evaluation model to obtain the power resource dominance output by the power resource dominance evaluation model; wherein,
the power resource dominance assessment model is as follows:
wherein PF is j The power resource control degree of the power resource provider is represented, T represents the set period, i represents the serial number of each blocked transmission line, S Uji Representing the load flow relief amount, RSI ji Representing the load flow mitigation factor.
5. A computer device comprising a memory and a processor, the memory storing a computer program, characterized in that the processor implements the steps of the method of any one of claims 1 to 3 when the computer program is executed.
6. 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 steps of the method of any of claims 1 to 3.
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