CN114154793A - Surplus resource analysis method and device based on renewable energy and computer equipment - Google Patents
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Abstract
The present application relates to a method, an apparatus, a computer device, a storage medium and a computer program product for surplus resource analysis based on renewable energy. The method comprises the following steps: acquiring declaration transaction information of a target object in a preset transaction time period, and performing first clearing calculation according to the declaration transaction information to obtain a first clearing result; determining a blocking regulation and control area according to the first clearing result and a preset line power flow constraint condition, and determining a renewable energy unit in the blocking regulation and control area as a target unit; determining initial surplus resources according to the actual transaction power generation amount and the actual transaction power generation price of each power generation object in a preset transaction time period, and the actual transaction power purchasing amount and the actual transaction power purchasing price of each power utilization object; and determining blocking compensation resources according to the actual transaction power generation amount of the target unit, and determining surplus resources according to the initial surplus resources and the blocking compensation resources. By adopting the method, the surplus resources of the power system can be analyzed quickly and accurately.
Description
Technical Field
The present application relates to the field of power market technologies, and in particular, to a method and an apparatus for analyzing surplus resources based on renewable energy, a computer device, a storage medium, and a computer program product.
Background
With the gradual implementation of a new cycle of electric power system reform, the construction of the Chinese electric power market is steadily promoted. At present, a node electricity price mechanism is mainly adopted in the electric power spot market, a general system price settlement is adopted on a user side, and a generator settles the settlement according to the electricity price of the node. When the power transmission resistance of the power system is blocked, according to the price quoted for adjusting the capacity, the output of the generators in the blocked power receiving area is sequentially increased (the output with the lowest price quoted is preferentially increased), and the output of the generators in the blocked power transmission area is reduced (the output of the generators with the highest price quoted is preferentially reduced) at the same time until the tidal current of the blocked branch is not out of limit any more. Therefore, the real-time electricity price of the power receiving area is higher than that of the power transmitting area, and due to blockage, an original electric power system with the unified price is divided into two regional electric energy quotation areas. Under the mechanism, when the power transmission resistor of the power system is blocked, the electricity prices of different nodes are different, and the funds settled by the power generation side and the user side are unbalanced, namely, surplus resources are blocked.
In order to guarantee reasonable allocation of surplus resources in the power market, the surplus resources are generally calculated manually, but the efficiency and the accuracy of manual calculation are low.
Disclosure of Invention
In view of the above, there is a need to provide a method, an apparatus, a computer device, a computer readable storage medium, and a computer program product for renewable energy based surplus resource analysis with high efficiency and high accuracy.
In a first aspect, the present application provides a surplus resource analysis method based on renewable energy. The method comprises the following steps:
acquiring declaration transaction information of a target object in a preset transaction time period, and performing first clearing calculation according to the declaration transaction information to obtain a first clearing result; the target object comprises an electricity utilization object and an electricity generation object;
determining a blocking regulation and control area according to the first clearing result and a preset line power flow constraint condition, and determining a renewable energy unit in the blocking regulation and control area as a target unit;
determining initial surplus resources according to the actual transaction power generation amount and the actual transaction power generation price of each power generation object in the preset transaction time period and the actual transaction electricity purchasing amount and the actual transaction electricity purchasing price of each power utilization object;
and determining blocking compensation resources according to the actual transaction power generation amount of the target unit, and determining surplus resources according to the initial surplus resources and the blocking compensation resources.
In one embodiment, the determining, according to the first clearing result and a preset line power flow constraint condition, a blocking regulation and control area, and determining a renewable energy unit in the blocking regulation and control area as a target unit includes:
determining the transmission lines and the expected transmission capacity of each transmission line according to the first clearing result;
determining the transmission line with the expected transmission capacity larger than the upper limit of the transmission capacity as a blocked line;
and determining a downstream node of the blocking line as a blocking regulation and control area, and determining a renewable energy unit in the blocking regulation and control area as a target unit.
In one embodiment, the first export result includes a first export purchase electricity price and a first export power generation amount of each renewable energy unit in the target object;
the determining of the blocking compensation resource according to the actual transaction power generation amount of the target unit comprises the following steps:
determining newly increased generated energy according to the actual transaction generated energy of the target unit and the first clear generated energy of the target unit;
determining newly increased power consumption corresponding to the newly increased power generation amount in the corresponding relation between the power generation amount and the power consumption of the target unit;
and determining blocking compensation resources according to the newly increased power consumption, the first purchase and purification electricity price of the target unit and the actual transaction electricity price of the target unit.
In one embodiment, the determining, according to the first clearing result and a preset line power flow constraint condition, a blocking regulation and control area, and determining a renewable energy unit in the blocking regulation and control area as a target unit includes:
determining the transmission lines and the expected transmission capacity of each transmission line according to the first clearing result;
determining the transmission line with the expected transmission capacity larger than the upper limit of the transmission capacity as a blocked line;
and determining an upstream node of the blocking line as a blocking regulation and control area, and determining a renewable energy unit in the blocking regulation and control area as a target unit.
In one embodiment, the determining blocking compensation resources according to the actual transaction power generation amount of the target unit includes:
determining the electric energy abandoning amount according to the actual transaction electric energy and the preset guarantee electric energy of the target unit;
and determining a blocking compensation resource according to the electric energy abandonment amount and the preset guaranteed electricity purchase price.
In one embodiment, the first export result includes a first export purchase electricity price and a first export power generation amount of each renewable energy unit in the target object;
the method further comprises the following steps:
performing second clearing calculation according to the first clearing result, the declaration transaction data of the target unit and the preset line power flow constraint condition to obtain a second clearing result; the second clearing result comprises the actual transaction power generation price, the second clearing power generation amount of the target unit and the second clearing and purchasing power price of the power object;
determining estimated blocking compensation resources according to the second clear power generation amount of the target unit;
and determining the actual transaction electricity purchasing price of the electricity object according to the second clear electricity purchasing price of the electricity object and the estimated blocking compensation resource.
In a second aspect, the application further provides a surplus resource analysis device based on renewable energy. The device comprises:
the first clearing module is used for acquiring declaration transaction information of the target object in a preset transaction time period, and performing first clearing calculation according to the declaration transaction information to obtain a first clearing result; the target object comprises an electricity utilization object and an electricity generation object;
the first determining module is used for determining a blocking regulation and control area according to the first clearing result and a preset line power flow constraint condition, and determining a renewable energy unit in the blocking regulation and control area as a target unit;
the second determining module is used for determining initial surplus resources according to the actual transaction power generation amount and the actual transaction power generation price of each power generation object in the preset transaction time period and the actual transaction electricity purchasing amount and the actual transaction electricity purchasing price of each power utilization object;
and the third determining module is used for determining blocking compensation resources according to the actual transaction power generation amount of the target unit and determining surplus resources according to the initial surplus resources and the blocking compensation resources.
In a third aspect, the present application also provides a computer device. The computer device comprises a memory storing a computer program and a processor implementing the following steps when executing the computer program:
acquiring declaration transaction information of a target object in a preset transaction time period, and performing first clearing calculation according to the declaration transaction information to obtain a first clearing result; the target object comprises an electricity utilization object and an electricity generation object;
determining a blocking regulation and control area according to the first clearing result and a preset line power flow constraint condition, and determining a renewable energy unit in the blocking regulation and control area as a target unit;
determining initial surplus resources according to the actual transaction power generation amount and the actual transaction power generation price of each power generation object in the preset transaction time period and the actual transaction electricity purchasing amount and the actual transaction electricity purchasing price of each power utilization object;
and determining blocking compensation resources according to the actual transaction power generation amount of the target unit, and determining surplus resources according to the initial surplus resources and the blocking compensation resources.
In a fourth aspect, the present application further provides a computer-readable storage medium. The computer-readable storage medium having stored thereon a computer program which, when executed by a processor, performs the steps of:
acquiring declaration transaction information of a target object in a preset transaction time period, and performing first clearing calculation according to the declaration transaction information to obtain a first clearing result; the target object comprises an electricity utilization object and an electricity generation object;
determining a blocking regulation and control area according to the first clearing result and a preset line power flow constraint condition, and determining a renewable energy unit in the blocking regulation and control area as a target unit;
determining initial surplus resources according to the actual transaction power generation amount and the actual transaction power generation price of each power generation object in the preset transaction time period and the actual transaction electricity purchasing amount and the actual transaction electricity purchasing price of each power utilization object;
and determining blocking compensation resources according to the actual transaction power generation amount of the target unit, and determining surplus resources according to the initial surplus resources and the blocking compensation resources.
In a fifth aspect, the present application further provides a computer program product. The computer program product comprising a computer program which when executed by a processor performs the steps of:
acquiring declaration transaction information of a target object in a preset transaction time period, and performing first clearing calculation according to the declaration transaction information to obtain a first clearing result; the target object comprises an electricity utilization object and an electricity generation object;
determining a blocking regulation and control area according to the first clearing result and a preset line power flow constraint condition, and determining a renewable energy unit in the blocking regulation and control area as a target unit;
determining initial surplus resources according to the actual transaction power generation amount and the actual transaction power generation price of each power generation object in the preset transaction time period and the actual transaction electricity purchasing amount and the actual transaction electricity purchasing price of each power utilization object;
and determining blocking compensation resources according to the actual transaction power generation amount of the target unit, and determining surplus resources according to the initial surplus resources and the blocking compensation resources.
According to the surplus resource analysis method, the surplus resource analysis device, the computer equipment, the storage medium and the computer program product based on the renewable energy, clearing calculation is carried out according to declared transaction information of the target object in the preset transaction time period to obtain a first clearing result, a blocking regulation and control area is further determined according to the first clearing result and the preset line power flow constraint condition, the renewable energy unit in the blocking regulation and control area is determined to be a target unit, and the target unit can participate in blocking regulation and control, so that blocking compensation resources generated for regulating and controlling blocking of the target unit can be calculated according to actual transaction power generation of the target unit in the preset transaction time period. And then determining initial surplus resources according to the actual transaction generated energy and the actual transaction power generation price of each power generation object in the preset transaction time period, and the actual transaction electricity purchasing amount and the actual transaction electricity purchasing price of each power utilization object in the preset transaction time period, and further calculating the surplus resources according to the initial surplus resources and the blocking compensation resources. The intelligent automatic calculation is adopted, the calculation efficiency is higher, in addition, the target unit which can participate in the blocking regulation and control can be quickly and accurately determined according to the first clearing result and the line power flow constraint condition, and then the blocking compensation resource and the surplus resource are calculated, so the surplus resource of the electric power system can be quickly and accurately analyzed by adopting the method.
Drawings
FIG. 1 is a schematic flow chart diagram of a renewable energy based surplus resource analysis method in one embodiment;
FIG. 2 is a flow diagram illustrating a method for renewable energy based surplus resource analysis in one particular example;
FIG. 3 is a block diagram of an embodiment of a renewable energy based surplus resource analysis apparatus;
FIG. 4 is a diagram illustrating an internal structure of a computer device according to an embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
In one embodiment, as shown in fig. 1, a method for analyzing surplus resources based on renewable energy is provided, and this embodiment is illustrated by applying the method to a terminal, and it is to be understood that the method may also be applied to a server, and may also be applied to a system including the terminal and the server, and is implemented by interaction between the terminal and the server. The terminal can be, but is not limited to, various personal computers, notebook computers, smart phones, tablet computers, internet of things devices and the like. The server may be implemented as a stand-alone server or as a server cluster consisting of a plurality of servers. In this embodiment, the method includes the steps of:
The target object comprises an electricity utilization object and an electricity generation object. The power generation object can comprise a thermal power generating unit and a renewable energy source unit such as wind power generation, photovoltaic power generation and the like. Because the renewable energy source set needs electricity when generating electricity, the electricity utilization object not only comprises general users, but also comprises the renewable energy source set. The preset transaction time period may be set according to actual conditions, and may be day-ahead (24 hours), 12 hours, 6 hours, 1 hour, 15 minutes, and the like, and this embodiment is not limited.
In implementation, the terminal may obtain declaration transaction information of the target object within a preset transaction period. The declaration transaction information generally comprises declaration power generation amount and declaration power generation price of each power generation object in a preset time period, and declaration purchasing power amount and declaration purchasing power price of each power utilization object in the preset time period. Then, the terminal can perform first clearing calculation according to the declaration transaction information to obtain a first clearing result. The first clearing calculation may be performed by using an existing method without considering the constraint of the line power flow, and the embodiment does not limit the specific method of the first clearing calculation, and the clearing may be performed with the goal of minimizing the electricity purchasing cost of the electricity object, for example. The first export result may include the first export power generation amount and the first export power generation price of each power generation object, and the first export purchase power price of each power utilization object.
And step 102, determining a blocking regulation and control area according to the first clearing result and a preset line power flow constraint condition, and determining a renewable energy unit in the blocking regulation and control area as a target unit.
The line power flow constraint condition may be that the transmission capacity of each transmission line in the power system is less than or equal to the upper limit of the transmission capacity of the transmission line.
In implementation, the terminal may determine a blocked line according to the first clear result in step 101 and a preset line power flow constraint condition, and further determine a blocking regulation and control area. The blockage control area can be a node or a set of a plurality of nodes in the power system, and the power generation object in the node can perform power generation amount control on the basis of the first clear result so as to achieve the purpose of relieving blockage or eliminating blockage. And then the terminal can determine the renewable energy source unit in the blocking regulation and control area as a target unit. For example, the terminal may screen out the renewable energy unit whose node belongs to the blocking regulation and control area from the power generation object in step 101, and determine the renewable energy unit as the target unit, and the terminal may perform secondary screening according to the declaration transaction information of the screened renewable energy unit, the first clear power generation amount, and the first clear power generation price, and screen out the renewable energy unit that can participate in the blocking regulation and control as the target unit.
In implementation, the terminal may obtain an actual trading power generation amount and an actual trading power generation price of each power generation object within a preset trading period, and an actual trading power purchasing amount and an actual trading power purchasing price of each power consumption object, and calculate an initial surplus resource (which may be denoted as F)BS) Initial surplus resources FBSThe calculation formula of (a) is as follows:
wherein n is the number of the electricity utilization objects, Qload,iPurchasing power for actual transaction of electricity object i, Pload,iPurchasing electricity price for the actual transaction of the electricity object i; m is the number of power generation objects, Qgen,jActual amount of electricity generation for the electricity generation object jgen,jThe electricity price for the actual transaction of the electricity generation object j.
And 104, determining blocking compensation resources according to the actual transaction power generation amount of the target unit, and determining surplus resources according to the initial surplus resources and the blocking compensation resources.
In implementation, the terminal can obtain the actual transaction power generation amount of the target unit, and calculate the blocking compensation resource (which can be recorded as F) according to the actual transaction power generation amount and a preset algorithmcps). The terminal may then rely on the initial surplus resources FBSAnd blocking compensation resource FcpsComputing surplus resources (which may be denoted as F)BS,t) Surplus resource calculating methodThe formula is as follows:
FBS,t＝FBS-Fcps
according to the surplus resource analysis method based on the renewable energy, clearing calculation is carried out according to declared transaction information of a target object in a preset transaction time period to obtain a first clearing result, a blocking regulation and control area is determined according to the first clearing result and a preset line power flow constraint condition, the renewable energy unit in the blocking regulation and control area is determined as a target unit, the target unit can participate in blocking regulation and control, and therefore blocking compensation resources generated by the target unit for regulating and controlling blocking can be calculated according to actual transaction power generation of the target unit in the preset transaction time period. And then determining initial surplus resources according to the actual transaction generated energy and the actual transaction power generation price of each power generation object in the preset transaction time period, and the actual transaction electricity purchasing amount and the actual transaction electricity purchasing price of each power utilization object in the preset transaction time period, and further calculating the surplus resources according to the initial surplus resources and the blocking compensation resources. The intelligent automatic calculation is adopted, the calculation efficiency is higher, in addition, the target unit which can participate in the blocking regulation and control can be quickly and accurately determined according to the first clearing result and the line power flow constraint condition, and then the blocking compensation resource and the surplus resource are calculated, so the surplus resource of the electric power system can be quickly and accurately analyzed by adopting the method.
In one embodiment, step 102 specifically includes:
determining the transmission lines and the expected transmission capacity of each transmission line according to the first clearing result; determining the transmission line with the expected transmission capacity larger than the upper limit of the transmission capacity as a blocked line; and determining a downstream node of the blocking line as a blocking regulation and control area, and determining a renewable energy unit in the blocking regulation and control area as a target unit.
In implementation, the terminal may determine the transmission line in the power transmission network of the power system according to the first clear power generation amount of each power generation object, the node where each power generation object is located, and the first clear power purchase amount of each power consumption object and the node where each power consumption object is located. The power transmission line refers to a target line for transmitting electricity generated by the power generation object to the electricity utilization object, which is determined based on the first clearing result. And the terminal can also determine the expected transmission capacity of each transmission line, wherein the expected transmission capacity refers to the capacity which is determined based on the first clearing result and needs to be transmitted by each transmission line. Then, the terminal may obtain the upper limit of the transmission capacity of each transmission line, compare the expected transmission capacity with the upper limit of the transmission capacity, and screen out the transmission lines with the expected transmission capacity greater than the upper limit of the transmission capacity as blocking lines. Then, the terminal may determine a downstream node of each blocking line as a blocking regulation and control area, and determine the renewable energy unit in the blocking regulation and control area as a target unit.
In this embodiment, the expected transmission capacities of the transmission lines and each transmission line are determined according to the first clearing result, then the transmission lines with the expected transmission capacities larger than the upper limit of the transmission capacity are screened out to be used as blocking lines, and the downstream nodes of the blocking lines are used as blocking regulation and control areas. The renewable energy source unit positioned at the downstream node of the blocking line can increase the self power generation amount to relieve the blocking, so that the renewable energy source unit is determined as a target unit to perform next blocking compensation resource calculation, and surplus resources can be accurately calculated.
In an embodiment, the first export result includes a first export electricity purchase price and a first export electricity generation amount of each renewable energy unit in the target object, and accordingly, the determining step of blocking the compensation resource in step 104 specifically includes:
determining newly increased generated energy according to the actual transaction generated energy of the target unit and the first clear generated energy of the target unit; determining newly-increased power consumption corresponding to the newly-increased power generation amount in the corresponding relation between the power generation amount and the power consumption amount of the target unit; and determining the blocking compensation resource according to the newly added power consumption, the first purchase electricity price of the target unit and the actual transaction electricity price of the target unit.
In implementation, the terminal can obtain the actual transaction power generation amount and the first clearing power generation amount of the target unit, and calculate the difference value between the actual transaction power generation amount and the first clearing power generation amount to obtain the newly added generatorThe amount of electricity. Specifically, the terminal may subtract the first clearing power generation amount from the actual trading power generation amount to obtain a difference, where the difference may be a positive number, a negative number, or 0, and in the case that the difference is a negative number, the terminal may determine the newly added power generation amount as 0 to participate in the subsequent calculation. Then, the terminal can calculate the power consumption corresponding to the newly-added power generation amount according to the newly-added power generation amount and the pre-stored corresponding relationship between the power generation amount and the power consumption of each target unit, namely the newly-added power consumption. The corresponding relation between the power generation amount and the power consumption amount of each target unit can be directly provided by the target unit, or can be indirectly determined according to technical data of the target unit, for example, the corresponding relation between the power generation amount and the power consumption amount corresponding to the type and the scale can be determined according to the type and the scale of the renewable energy unit. Then, the terminal can calculate the blocking compensation resource F according to the newly added power consumption, the first purchase electricity price of the target unit and the actual transaction electricity price of the target unitcpsThe blocking compensation resource F can be calculated by the following formulacps：
Wherein l is the number of target units; pload,kThe first clear purchase electricity price of the target unit k is obtained; pmkt,kGenerating electricity price for the actual transaction of the target unit k; qtrs,kThe new power consumption of the target unit k.
In this embodiment, the renewable energy unit located at the downstream node of the power transmission line can alleviate the blockage by increasing the power generation amount. However, since the power generation of the renewable energy unit corresponds to a certain power consumption, in order to increase profit, the renewable energy unit can be used as a power consumption object, and can declare that the power is purchased from the power grid at a low price for self power generation and then sold at a high price. However, the electricity purchasing from the power grid is not beneficial to releasing the blockage, so that the renewable energy source unit is promoted to increase the self-electricity consumption by performing electricity generation compensation on the renewable energy source unit to release the blockage. According to the method, the newly-increased generated energy is calculated according to the actual transaction generated energy and the first output power generated energy of the target unit, the newly-increased power consumption is further calculated according to the newly-increased generated energy, the spontaneous self-use electric quantity increased by the target unit for relieving the blockage can be rapidly calculated, the compensation resource calculation is carried out on the part of the electric quantity, and the blockage compensation resource can be obtained more efficiently.
In one embodiment, step 102 specifically includes:
determining the transmission lines and the expected transmission capacity of each transmission line according to the first clearing result; determining the transmission line with the expected transmission capacity larger than the upper limit of the transmission capacity as a blocked line; and determining an upstream node of the blocking line as a blocking regulation and control area, and determining a renewable energy unit in the blocking regulation and control area as a target unit.
In implementation, the terminal may determine the transmission line in the power transmission network of the power system according to the first clear power generation amount of each power generation object, the node where each power generation object is located, and the first clear power purchase amount of each power consumption object and the node where each power consumption object is located. The power transmission line refers to a target line for transmitting electricity generated by the power generation object to the electricity utilization object, which is determined based on the first clearing result. And the terminal can also determine the expected transmission capacity of each transmission line, wherein the expected transmission capacity refers to the capacity which is determined based on the first clearing result and needs to be transmitted by each transmission line. Then, the terminal may obtain the upper limit of the transmission capacity of each transmission line, compare the expected transmission capacity with the upper limit of the transmission capacity, and screen out the transmission lines with the expected transmission capacity greater than the upper limit of the transmission capacity as blocking lines. Then, the terminal may determine an upstream node of each blocking line as a blocking regulation and control area, and determine the renewable energy unit in the blocking regulation and control area as a target unit.
In this embodiment, the expected transmission capacities of the transmission lines and each transmission line are determined according to the first clearing result, then the transmission lines with the expected transmission capacities larger than the upper limit of the transmission capacity are screened out to be used as blocking lines, and the upstream nodes of the blocking lines are used as blocking regulation and control areas. The renewable energy source unit located at the upstream node of the blocking line can relieve the blocking by reducing the self power generation amount, so that the renewable energy source unit is determined as a target unit to perform next blocking compensation resource calculation, and surplus resources can be calculated more accurately.
In an embodiment, the step of determining blocking compensation resources in step 104 specifically includes:
determining the discarded power generation amount according to the actual transaction power generation amount of the target unit and the preset guarantee electric quantity; and determining the blocking compensation resource according to the electric energy abandoning amount and the preset guaranteed electricity purchasing price.
In implementation, the terminal can obtain actual transaction power generation amount of a target unit located at an upstream node of a blocking line, compare the actual transaction power generation amount with a preset guarantee power generation amount, and if the actual transaction power generation amount is smaller than the preset guarantee power generation amount, subtract the actual transaction power generation amount from the guarantee power generation amount, calculate a difference value, and obtain the power abandonment amount. The difference may be a positive number, a negative number, or 0, and in the case where the difference is a negative number, the terminal may confirm the amount of power discarded to be 0 to participate in the subsequent calculation. And then the terminal can calculate the blocking compensation resource according to the electric energy abandonment amount and the preset guaranteed electricity purchase price. The congestion compensation resource F can be calculated using the following formulacps：
Wherein l is the number of target units; pbz，kThe preset guarantee electricity purchase price of the target unit k is obtained; qbz，kAnd the power generation abandoning amount of the target unit k is obtained.
In this embodiment, the unit located at the upstream node of the blocking line can alleviate the blocking by reducing the power generation amount. In order to promote the development of renewable energy power generation, a policy of guaranteeing the purchase electric quantity (i.e., guaranteeing the electric quantity) of a renewable energy unit is generally set. However, the renewable energy unit is more flexible to start and stop than the thermal power unit, so for the overall economic efficiency of the power system, the power abandonment amount of the target unit can be compensated to promote the reduction of the power generation amount of the target unit. According to the method, the abandoned power generation amount is calculated through the actual transaction power generation amount and the preset guaranteed power amount of the target unit, the blocking compensation resource is calculated according to the abandoned power generation amount and the preset guaranteed electricity purchasing price, and the blocking compensation resource can be accurately calculated.
In one embodiment, the first export result includes a first export electricity purchase price and a first export electricity generation amount of each renewable energy unit in the target object, and the method further includes:
performing second clearing calculation according to the first clearing result, the declaration transaction data of the target unit and a preset line power flow constraint condition to obtain a second clearing result; the second clearing result comprises actual transaction power generation price, second clearing power generation amount of the target unit and second clearing and purchasing power price of the power object; determining an estimated blocking compensation resource according to the second clear power generation amount of the target unit; and determining the actual transaction electricity purchasing price of the electricity object according to the second clear electricity purchasing price of the electricity object and the estimated blocking compensation resource.
In implementation, the terminal may perform a second clearing calculation according to the first clearing result, the declaration transaction data of the target unit, and a preset line power flow constraint condition, so as to obtain a second clearing result. And the second clearing result comprises the actual transaction power generation price, the second clearing power generation amount of the target unit and the second clearing and purchasing power price of the power object. And then the terminal can calculate the estimated blocking compensation resource according to the second clear power generation amount of the target unit. The calculation method of the estimated blocking compensation resource may refer to the calculation method of the blocking compensation resource. Then, the terminal can calculate the actual transaction electricity purchasing price of the electricity object according to the second clear electricity purchasing price of the electricity object and the estimated blocking compensation resource. Specifically, the estimated blocking compensation resources may be averagely allocated to each electricity utilization object, or allocated according to a certain weight proportion, and the like, and then the actual transaction electricity purchase price may be calculated by summing the second clear electricity purchase price and the allocated blocking compensation resources.
In this embodiment, the second clearing calculation is performed according to the first clearing result, the declaration transaction data of the target unit, and the preset line power flow constraint condition to obtain the second clearing power generation amount of the target unit, and then the estimated blocking compensation resource is calculated according to the second clearing power generation amount of the target unit and is used as one of the costs of the actual transaction electricity purchasing prices, so that the electricity purchasing price can be set more reasonably, and the surplus resource can be analyzed more reasonably.
In the embodiment of the present invention, the renewable energy source unit at the upstream node of the congested line may be determined as a target unit (may also be referred to as an upstream target unit), the renewable energy source unit at the downstream node of the congested line may be determined as a target unit (may also be referred to as a downstream target unit), and both the renewable energy source units at the upstream node and the downstream node of the congested line may be determined as target units. The method and the device can be applied to surplus resource analysis under three conditions that the blocking compensation resource is calculated only based on the upstream target unit, the blocking compensation resource is calculated only based on the downstream target unit, and the blocking compensation resource is calculated based on the two units.
In one specific example, as shown in fig. 2, a method for renewable energy based surplus resource analysis is provided, comprising:
FBS,t＝FBS-Fcps,zy-Fcps,bz
it should be understood that, although the steps in the flowcharts related to the embodiments as described above are sequentially displayed as indicated by arrows, the steps are not necessarily performed sequentially as indicated by the arrows. The steps are not performed in the exact order shown and described, and may be performed in other orders, unless explicitly stated otherwise. Moreover, at least a part of the steps in the flowcharts related to the embodiments described above may include multiple steps or multiple stages, which are not necessarily performed at the same time, but may be performed at different times, and the execution order of the steps or stages is not necessarily sequential, but may be rotated or alternated with other steps or at least a part of the steps or stages in other steps.
Based on the same inventive concept, the embodiment of the present application further provides a surplus resource analysis device based on renewable energy for implementing the surplus resource analysis method based on renewable energy. The implementation scheme for solving the problem provided by the apparatus is similar to the implementation scheme described in the above method, so specific limitations in one or more embodiments of the renewable energy based surplus resource analysis apparatus provided below may be referred to the above limitations on the renewable energy based surplus resource analysis method, and details are not repeated herein.
In one embodiment, as shown in fig. 3, there is provided a renewable energy based surplus resource analysis apparatus 300, comprising: a first closeout module 301, a first determination module 302, a second determination module 303, and a third determination module 304, wherein:
the first clearing module 301 is configured to obtain declaration transaction information of the target object in a preset transaction time period, and perform first clearing calculation according to the declaration transaction information to obtain a first clearing result; the target object includes an electricity-using object and an electricity-generating object.
The first determining module 302 is configured to determine a blocking regulation and control area according to the first clearing result and a preset line power flow constraint condition, and determine a renewable energy unit in the blocking regulation and control area as a target unit.
The second determining module 303 is configured to determine an initial surplus resource according to the actual trading power generation amount and the actual trading power generation price of each power generation object in the preset trading period, and the actual trading power purchasing amount and the actual trading power purchasing price of each power consumption object.
The third determining module 304 is configured to determine the blocking compensation resource according to the actual transaction power generation amount of the target unit, and determine the surplus resource according to the initial surplus resource and the blocking compensation resource.
In one embodiment, the first determining module 302 is specifically configured to:
determining the transmission lines and the expected transmission capacity of each transmission line according to the first clearing result; determining the transmission line with the expected transmission capacity larger than the upper limit of the transmission capacity as a blocked line; and determining a downstream node of the blocking line as a blocking regulation and control area, and determining a renewable energy unit in the blocking regulation and control area as a target unit.
In an embodiment, the first export result includes a first export electricity purchase price and a first export electricity generation amount of each renewable energy unit in the target object, and the third determining module 304 is specifically configured to:
determining newly increased generated energy according to the actual transaction generated energy of the target unit and the first clear generated energy of the target unit; determining newly-increased power consumption corresponding to the newly-increased power generation amount in the corresponding relation between the power generation amount and the power consumption amount of the target unit; and determining the blocking compensation resource according to the newly added power consumption, the first purchase electricity price of the target unit and the actual transaction electricity price of the target unit.
In one embodiment, the first determining module 302 is specifically configured to:
determining the transmission lines and the expected transmission capacity of each transmission line according to the first clearing result; determining the transmission line with the expected transmission capacity larger than the upper limit of the transmission capacity as a blocked line; and determining an upstream node of the blocking line as a blocking regulation and control area, and determining a renewable energy unit in the blocking regulation and control area as a target unit.
In one embodiment, the third determining module 304 is specifically configured to:
determining the discarded power generation amount according to the actual transaction power generation amount of the target unit and the preset guarantee electric quantity; and determining the blocking compensation resource according to the electric energy abandoning amount and the preset guaranteed electricity purchasing price.
In one embodiment, the first purge result includes a first purge electricity purchase price and a first purge electricity generation amount of each renewable energy unit in the target object, and the apparatus further includes a second purge module, a fourth determination module, and a fifth determination module, wherein:
the second clearing module is used for performing second clearing calculation according to the first clearing result, the declaration transaction data of the target unit and a preset line power flow constraint condition to obtain a second clearing result; the second clearing result comprises actual transaction power generation price, second clearing power generation amount of the target unit and second clearing and purchasing power price of the power object.
And the fourth determining module is used for determining the estimated blocking compensation resource according to the second clear power generation amount of the target unit.
And the fifth determining module is used for determining the actual transaction electricity purchasing price of the electricity object according to the second clear electricity purchasing price and the estimated blocking compensation resource of the electricity object.
The modules in the renewable energy based surplus resource analysis apparatus may be implemented in whole or in part by software, hardware, and a combination thereof. The modules can be embedded in a hardware form or independent from a processor in the computer device, and can also be stored in a memory in the computer device in a software form, so that the processor can call and execute operations corresponding to the modules.
In one embodiment, a computer device is provided, which may be a terminal, and its internal structure diagram may be as shown in fig. 4. 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 comprises a nonvolatile 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 an operating system and computer programs in the non-volatile storage medium. The communication interface of the computer device is used for carrying out wired or wireless communication with an external terminal, and the wireless communication can be realized through WIFI, a mobile cellular network, NFC (near field communication) or other technologies. The computer program is executed by a processor to implement a method for renewable energy based surplus resource analysis. 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, a key, a track ball or a touch pad arranged on the shell of the computer equipment, an external keyboard, a touch pad or a mouse and the like.
Those skilled in the art will appreciate that the architecture shown in fig. 4 is merely a block diagram of some of the structures associated with the disclosed aspects and is not intended to limit the computing devices to which the disclosed aspects apply, as particular computing devices may include more or less components than those shown, or may combine certain components, or have a different arrangement of components.
In one embodiment, a computer device is provided, comprising a memory and a processor, the memory having stored therein a computer program, the processor implementing the steps of the above-described method embodiments when executing the computer program.
In an embodiment, a computer-readable storage medium is provided, on which a computer program is stored which, when being executed by a processor, carries out the steps of the above-mentioned method embodiments.
In an embodiment, a computer program product is provided, comprising a computer program which, when being executed by a processor, carries out the steps of the above-mentioned method embodiments.
It should be noted that, the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data for analysis, stored data, presented data, etc.) referred to in the present application are information and data authorized by the user or sufficiently authorized by each party.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware instructions of a computer program, which can be stored in a non-volatile computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. Any reference to memory, database, or other medium used in the 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), Magnetic Random Access Memory (MRAM), Ferroelectric Random Access Memory (FRAM), Phase Change Memory (PCM), graphene Memory, and the like. Volatile Memory can include Random Access Memory (RAM), external cache Memory, and the like. By way of illustration and not limitation, RAM can take many forms, such as Static Random Access Memory (SRAM) or Dynamic Random Access Memory (DRAM), among others. The databases referred to in various embodiments provided herein may include at least one of relational and non-relational databases. The non-relational database may include, but is not limited to, a block chain based distributed database, and the like. The processors referred to in the embodiments provided herein may be general purpose processors, central processing units, graphics processors, digital signal processors, programmable logic devices, quantum computing based data processing logic devices, etc., without limitation.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present application. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present application shall be subject to the appended claims.
Claims (10)
1. A surplus resource analysis method based on renewable energy sources is characterized by comprising the following steps:
acquiring declaration transaction information of a target object in a preset transaction time period, and performing first clearing calculation according to the declaration transaction information to obtain a first clearing result; the target object comprises an electricity utilization object and an electricity generation object;
determining a blocking regulation and control area according to the first clearing result and a preset line power flow constraint condition, and determining a renewable energy unit in the blocking regulation and control area as a target unit;
determining initial surplus resources according to the actual transaction power generation amount and the actual transaction power generation price of each power generation object in the preset transaction time period and the actual transaction electricity purchasing amount and the actual transaction electricity purchasing price of each power utilization object;
and determining blocking compensation resources according to the actual transaction power generation amount of the target unit, and determining surplus resources according to the initial surplus resources and the blocking compensation resources.
2. The method according to claim 1, wherein the determining a blocking regulation and control area according to the first clearing result and a preset line power flow constraint condition, and determining the renewable energy unit in the blocking regulation and control area as a target unit comprises:
determining the transmission lines and the expected transmission capacity of each transmission line according to the first clearing result;
determining the transmission line with the expected transmission capacity larger than the upper limit of the transmission capacity as a blocked line;
and determining a downstream node of the blocking line as a blocking regulation and control area, and determining a renewable energy unit in the blocking regulation and control area as a target unit.
3. The method according to claim 2, wherein the first export result comprises a first export purchase electricity price and a first export electricity generation amount of each renewable energy unit in the target object;
the determining of the blocking compensation resource according to the actual transaction power generation amount of the target unit comprises the following steps:
determining newly increased generated energy according to the actual transaction generated energy of the target unit and the first clear generated energy of the target unit;
determining newly increased power consumption corresponding to the newly increased power generation amount in the corresponding relation between the power generation amount and the power consumption of the target unit;
and determining blocking compensation resources according to the newly increased power consumption, the first purchase and purification electricity price of the target unit and the actual transaction electricity price of the target unit.
4. The method according to claim 1, wherein the determining a blocking regulation and control area according to the first clearing result and a preset line power flow constraint condition, and determining the renewable energy unit in the blocking regulation and control area as a target unit comprises:
determining the transmission lines and the expected transmission capacity of each transmission line according to the first clearing result;
determining the transmission line with the expected transmission capacity larger than the upper limit of the transmission capacity as a blocked line;
and determining an upstream node of the blocking line as a blocking regulation and control area, and determining a renewable energy unit in the blocking regulation and control area as a target unit.
5. The method of claim 4, wherein determining blocking compensation resources based on actual power generation trades of the target fleet comprises:
determining the electric energy abandoning amount according to the actual transaction electric energy and the preset guarantee electric energy of the target unit;
and determining a blocking compensation resource according to the electric energy abandonment amount and the preset guaranteed electricity purchase price.
6. The method according to claim 1, wherein the first export result comprises a first export purchase electricity price and a first export electricity generation amount of each renewable energy unit in the target object;
the method further comprises the following steps:
performing second clearing calculation according to the first clearing result, the declaration transaction data of the target unit and the preset line power flow constraint condition to obtain a second clearing result; the second clearing result comprises the actual transaction power generation price, the second clearing power generation amount of the target unit and the second clearing and purchasing power price of the power object;
determining estimated blocking compensation resources according to the second clear power generation amount of the target unit;
and determining the actual transaction electricity purchasing price of the electricity object according to the second clear electricity purchasing price of the electricity object and the estimated blocking compensation resource.
7. A renewable energy based surplus resource analysis apparatus, the apparatus comprising:
the first clearing module is used for acquiring declaration transaction information of the target object in a preset transaction time period, and performing first clearing calculation according to the declaration transaction information to obtain a first clearing result; the target object comprises an electricity utilization object and an electricity generation object;
the first determining module is used for determining a blocking regulation and control area according to the first clearing result and a preset line power flow constraint condition, and determining a renewable energy unit in the blocking regulation and control area as a target unit;
the second determining module is used for determining initial surplus resources according to the actual transaction power generation amount and the actual transaction power generation price of each power generation object in the preset transaction time period and the actual transaction electricity purchasing amount and the actual transaction electricity purchasing price of each power utilization object;
and the third determining module is used for determining blocking compensation resources according to the actual transaction power generation amount of the target unit and determining surplus resources according to the initial surplus resources and the blocking compensation resources.
8. A computer device comprising a memory and a processor, the memory storing a computer program, characterized in that the processor, when executing the computer program, implements the steps of the method of any of claims 1 to 6.
9. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method of any one of claims 1 to 6.
10. A computer program product comprising a computer program, characterized in that the computer program realizes the steps of the method of any one of claims 1 to 6 when executed by a processor.
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| CN116433268B (en) * | 2023-06-13 | 2023-09-05 | 国网浙江省电力有限公司 | Processing method and system for unbalanced funds in electric power market |
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