Power generation transaction cost evaluation method, system and device, and storage medium

Abstract

The invention discloses a power generation transaction cost evaluation method, system and device, and a storage medium. The method comprises the steps of determining a target electric quantity of a power generation enterprise and a target electricity price corresponding to the target electric quantity; determining power generation income data according to the target electric quantity and the target electricity price; determining the power generation profit according to the power generation profit data and the absolute cost of the power generation enterprise; and constructing a profit evaluation model according to the power generation profit and the transaction cost of the power generation enterprise, and performing profit evaluation on the transaction cost based on the profit evaluation model. Compared with the prior art that financial staff need to manually count transaction data and cost data and then carry out data analysis, so that the evaluation time is long and tedious, the method achieves the automatic evaluation of the transaction cost of the power generation enterprise through the profit evaluation model, and rapidly completes the precise evaluation of the transaction cost profit.

Description

Technical Field

[0001] The present invention belongs to the technical field of transaction cost assessment, and in particular relates to a transaction cost assessment method, system, device and storage medium for power generation. Background Art

[0002] For power generation companies, the transaction costs of power plants can only be analyzed and compared through manual financial accounting after the revenue and cost data are obtained after the power plants are put into production and operation. This makes the profit evaluation results of transaction costs more cumbersome and time-consuming. If the transaction cost data is large, the profit evaluation results will also be inaccurate. Therefore, how to quickly complete an accurate evaluation of transaction cost profits has become a problem that needs to be solved urgently.

[0003] The above contents are only used to assist in understanding the technical solution of the present invention and do not constitute an admission that the above contents are prior art. Summary of the invention

[0004] The main purpose of the present invention is to provide a transaction cost evaluation method, system, device and storage medium for power generation, aiming to solve the technical problem of how to quickly complete an accurate evaluation of transaction cost profitability.

[0005] To achieve the above object, the present invention provides a transaction cost evaluation method for power generation, the transaction cost evaluation method for power generation comprising:

[0006] Determine the target electricity quantity of the power generation enterprise and the target electricity price corresponding to the target electricity quantity;

[0007] Determining power generation revenue data according to the target power quantity and the target power price;

[0008] Determining power generation profit based on the power generation revenue data and the absolute cost of the power generation enterprise;

[0009] A profit evaluation model is constructed according to the power generation profit and the transaction cost of the power generation enterprise, and a profit evaluation of the transaction cost is performed based on the profit evaluation model.

[0010] Optionally, the step of determining power generation revenue data according to the target power amount and the target electricity price includes:

[0011] The power generation revenue data is calculated according to the target power volume and the target power price through the revenue function formula; the revenue function formula is:

[0012] P tr =∑C i Q i

[0013] Where P tr is the power generation revenue data, C iis the target electricity price for the i-th type of electricity, Q i is the i-th type of electricity.

[0014] Optionally, the step of constructing a profit evaluation model according to the power generation profit and the transaction cost of the power generation enterprise includes:

[0015] Determine a profit evaluation rule according to the power generation profit and the transaction cost of the power generation enterprise, wherein the profit evaluation rule includes a transaction price profit evaluation rule and a power generation operation cost profit evaluation rule;

[0016] According to the transaction price profit evaluation rule and the power generation operation cost profit evaluation rule, a transaction price profit evaluation model and a power generation operation cost profit evaluation model are respectively constructed.

[0017] Optionally, the step of determining a profit evaluation rule according to the power generation profit and the transaction cost of the power generation enterprise includes:

[0018] When the transaction cost of the power generation enterprise is the transaction price, the marginal cost electricity price, the break-even electricity price and the profit target electricity price are determined according to the power generation profit and the transaction price;

[0019] Determining a power generation profit interval relationship and a transaction price interval relationship according to the power generation profit, the transaction price, the marginal cost electricity price, the break-even electricity price and the profit target electricity price;

[0020] A transaction price profit evaluation rule is determined according to the power generation profit interval relationship and the transaction price interval relationship.

[0021] Optionally, the step of constructing a transaction price profitability evaluation model according to the transaction price profitability evaluation rule includes:

[0022] According to the transaction price profit evaluation rules, a transaction price profit evaluation model is constructed through the transaction price three-line four-zone function equation;

[0023] The transaction price three-line four-zone function equation is:

[0024] P y ∈(-∞,P e ), C i ≤C m

[0025] P y ∈(P e , P Be ), C m <C i ≤C B

[0026] P y ∈(PBe , P t ), C B <C i ≤C e

[0027] P y ∈(P t , +∞), C i >C e

[0028] Where P y is the power generation profit, P e For profit, P Be is the break-even profit, P t is the profit target profit, C i is the transaction price, C m is the marginal cost electricity price, C B is the break-even electricity price, C e The target electricity price for profitability.

[0029] Optionally, the step of determining a profit evaluation rule according to the power generation profit and the transaction cost of the power generation enterprise includes:

[0030] When the transaction cost of the power generation enterprise is the power generation operation cost, the historical transaction data of the power generation enterprise is analyzed to obtain the profit target cost, the break-even cost and the average sales price;

[0031] Determine a power generation profit interval relationship and a power generation operation cost interval relationship according to the power generation profit, the power generation operation cost, the profit target cost, the break-even cost and the average sales price;

[0032] The power generation operation cost profit evaluation rule is determined according to the power generation profit interval relationship and the power generation operation cost interval relationship.

[0033] Optionally, the step of constructing a power generation operation cost profit evaluation model according to the power generation operation cost profit evaluation rule includes:

[0034] According to the power generation operation cost profit evaluation rule, a power generation operation cost profit evaluation model is constructed through the power generation operation cost three-line four-area function equation;

[0035] The three-line four-area function equation of power generation operation cost is:

[0036] P y ∈(P t , +∞), C oc ≤C tc

[0037] P y ∈(0,Pt ), C tc <C oc ≤C Bec

[0038] P y ∈(P ml ,0),C Bec <C oc ≤C s

[0039] P y ∈(-∞,P ml ), C oc >C s

[0040] Where P y is the power generation profit, P ml is the marginal loss profit, P t is the profit target profit, C oc is the power generation operating cost, C tc is the profit target cost, C Bec is the break-even cost, C s The average selling price.

[0041] In addition, to achieve the above-mentioned purpose, the present invention also proposes a transaction cost evaluation system for power generation, the transaction cost evaluation system for power generation comprising:

[0042] A determination module is used to determine the target electricity quantity of the power generation enterprise and the target electricity price corresponding to the target electricity quantity;

[0043] A calculation module, used to determine power generation revenue data according to the target power quantity and the target electricity price;

[0044] The calculation module is further used to determine the power generation profit according to the power generation revenue data and the absolute cost of the power generation enterprise;

[0045] An evaluation module is used to construct a profit evaluation model according to the power generation profit and the transaction cost of the power generation enterprise, and to perform profit evaluation on the transaction cost based on the profit evaluation model.

[0046] In addition, to achieve the above-mentioned objectives, the present invention also proposes a transaction cost assessment device for power generation, which includes: a memory, a processor, and a transaction cost assessment program for power generation stored in the memory and executable on the processor, wherein the transaction cost assessment program for power generation is configured to implement the steps of the transaction cost assessment method for power generation described above.

[0047] In addition, to achieve the above-mentioned purpose, the present invention also proposes a storage medium, on which a transaction cost assessment program for power generation is stored. When the transaction cost assessment program for power generation is executed by a processor, the steps of the transaction cost assessment method for power generation described above are implemented.

[0048] The present invention first determines the target electricity quantity of the power generation enterprise and the target electricity price corresponding to the target electricity quantity, then determines the power generation revenue data according to the target electricity quantity and the target electricity price, then determines the power generation profit according to the power generation revenue data and the absolute cost of the power generation enterprise, and finally constructs a profit evaluation model according to the power generation profit and the transaction cost of the power generation enterprise, and performs a profit evaluation on the transaction cost based on the profit evaluation model. Compared with the prior art, which requires financial personnel to manually count transaction data and cost data and then perform data analysis, resulting in a long and cumbersome evaluation time, the present invention realizes the automatic evaluation of the transaction cost of the power generation enterprise through the profit evaluation model, thereby quickly completing the accurate evaluation of the transaction cost profit. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] Figure 1 It is a structural schematic diagram of a power generation transaction cost evaluation device in a hardware operating environment involved in an embodiment of the present invention;

[0050] Figure 2 A schematic flow chart of a first embodiment of a transaction cost evaluation method for power generation according to the present invention;

[0051] Figure 3 This is a structural block diagram of the first embodiment of the transaction cost evaluation system for power generation according to the present invention.

[0052] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0053] It should be understood that the specific embodiments described herein are only used to explain the present invention, and are not used to limit the present invention.

[0054] Reference Figure 1 , Figure 1 It is a schematic diagram of the structure of a transaction cost assessment device for power generation in the hardware operating environment involved in an embodiment of the present invention.

[0055] like Figure 1As shown, the transaction cost assessment device for power generation may include: a processor 1001, such as a central processing unit (CPU), a communication bus 1002, a user interface 1003, a network interface 1004, and a memory 1005. Among them, the communication bus 1002 is used to realize the connection and communication between these components. The user interface 1003 may include a display screen (Display), an input unit such as a keyboard (Keyboard), and the optional user interface 1003 may also include a standard wired interface and a wireless interface. The network interface 1004 may optionally include a standard wired interface and a wireless interface (such as a wireless fidelity (Wireless-Fidelity, Wi-Fi) interface). The memory 1005 may be a high-speed random access memory (Random Access Memory, RAM), or a stable non-volatile memory (Non-Volatile Memory, NVM), such as a disk storage. The memory 1005 may also be a storage system independent of the aforementioned processor 1001.

[0056] Those skilled in the art will understand that Figure 1 The structure shown in the figure does not constitute a limitation on the transaction cost assessment device for power generation, and may include more or less components than shown in the figure, or combine certain components, or arrange the components differently.

[0057] like Figure 1 As shown, the memory 1005 as a storage medium may include an operating system, a network communication module, a user interface module, and a transaction cost assessment program for power generation.

[0058] exist Figure 1 In the power generation transaction cost assessment device shown, the network interface 1004 is mainly used for data communication with the network server; the user interface 1003 is mainly used for data interaction with the user; the processor 1001 and the memory 1005 in the power generation transaction cost assessment device of the present invention can be set in the power generation transaction cost assessment device, and the power generation transaction cost assessment device calls the power generation transaction cost assessment program stored in the memory 1005 through the processor 1001, and executes the power generation transaction cost assessment method provided in the embodiment of the present invention.

[0059] The embodiment of the present invention provides a method for evaluating the transaction cost of power generation, referring to Figure 2 , Figure 2 This is a flow chart of the first embodiment of the transaction cost evaluation method for power generation according to the present invention.

[0060] In this embodiment, the transaction cost evaluation method for power generation includes the following steps:

[0061] Step S10: Determine the target electricity quantity of the power generation enterprise and the target electricity price corresponding to the target electricity quantity.

[0062] It is easy to understand that the executor of this embodiment can be a transaction cost assessment system for power generation with functions such as data processing, network communication and program running, or other computer equipment with similar functions, etc., and this embodiment is not limited.

[0063] In this embodiment, the target electricity volume includes base electricity volume, long-term contract electricity volume, power generation rights trading electricity volume and monthly (intraday) competitive electricity volume, and the target electricity price includes the base electricity volume price, long-term contract electricity volume price, power generation rights trading price and intraday competitive electricity price under the corresponding electricity volume.

[0064] Step S20: determining power generation revenue data according to the target power amount and the target electricity price.

[0065] Further, the processing method for determining the power generation revenue data according to the target power quantity and the target power price is to calculate the power generation revenue data according to the target power quantity and the target power price through a revenue function formula;

[0066] The profit function formula is:

[0067] P tr =∑C i Q i

[0068] Where P tr is the power generation revenue data, C i is the target electricity price for the i-th type of electricity, Q i is the i-th type of electricity.

[0069] Step S30: Determine the power generation profit according to the power generation revenue data and the absolute cost of the power generation enterprise.

[0070] Power generation enterprises compete in the market with profit as their primary goal. The profit they earn is the difference between their revenue and enterprise costs: y =P tr -P c , P c is the absolute cost of the power generation enterprise.

[0071] Step S40: constructing a profit evaluation model according to the power generation profit and the transaction cost of the power generation enterprise, and performing a profit evaluation on the transaction cost based on the profit evaluation model.

[0072] In the specific implementation, the profit evaluation rules are determined according to the power generation profit and the transaction cost of the power generation enterprise, and the profit evaluation rules include the transaction price profit evaluation rules and the power generation operation cost profit evaluation rules; according to the transaction price profit evaluation rules and the power generation operation cost profit evaluation rules, the transaction price profit evaluation model and the power generation operation cost profit evaluation model are constructed respectively.

[0073] Furthermore, the processing method for determining the profit evaluation rules based on the power generation profit and the transaction cost of the power generation enterprise is as follows: when the transaction cost of the power generation enterprise is the transaction price, the marginal cost electricity price, the break-even electricity price and the profit target electricity price are determined based on the power generation profit and the transaction price; the power generation profit interval relationship and the transaction price interval relationship are determined based on the power generation profit, the transaction price, the marginal cost electricity price, the break-even electricity price and the profit target electricity price; the transaction price profit evaluation rules are determined based on the power generation profit interval relationship and the transaction price interval relationship.

[0074] It should be understood that the power generation profit interval relationship includes: P y ∈(-∞,P e ), P y ∈(P e , P Be ), P y ∈(P Be , P t ) and P y ∈(P t , +∞), the transaction price range relationship includes: C i ≤C m , C m <C i ≤C B , C B <C i ≤C e and Ci>Ce;P y is the power generation profit, P e For profit, P Be is the break-even profit, P t is the profit target profit, C i is the transaction price, C m is the marginal cost electricity price, C B is the break-even electricity price, C e The target electricity price for profitability.

[0075] Further, the processing method of constructing a transaction price profit evaluation model according to the transaction price profit evaluation rule is to construct the transaction price profit evaluation model through the transaction price three-line four-zone function equation according to the transaction price profit evaluation rule;

[0076] The function equation of the three-line and four-zone transaction price is:

[0077] Py ∈(-∞,P e ), C i ≤C m

[0078] P y ∈(P e , P Be ), C m <C i ≤C B

[0079] P y ∈(P Be , P t ), C B <C i ≤C e

[0080] P y ∈(P t , +∞), C i >C e

[0081] In this embodiment, the revenue is closely related to the market electricity price when the power consumption is fixed. The higher the quotation, the greater the revenue. i When the electricity price is lower than the marginal cost, it may be difficult for the enterprise to maintain simple production, which is called the operational inefficiency zone; when the transaction price is between the marginal cost electricity price and the break-even electricity price Cbalance, the fixed cost is diluted, but the incremental production is inefficient, which belongs to the marginal efficiency zone; when the transaction price is between the break-even electricity price and the profit target price Cprofit, the electricity price is higher than the cost but fails to reach the target profit, and the production is profitable, which belongs to the incremental efficiency zone; if the transaction price is greater than the profit target price, the enterprise's profit reaches or exceeds the target profit, which belongs to the profit efficiency zone.

[0082] It should also be noted that since the largest proportion of the cost of thermal power companies is fuel cost, the marginal cost is calculated according to the operating cost, the profit and loss cost is the sum of the operating cost and the fixed cost, and the profit cost is the profit and loss cost plus the target profit per unit of electricity. Dividing the electricity price into three lines and four zones, comparing the enterprise costs, and obtaining the profit situation of the power plant is very beneficial for power generation companies to fully understand the profit situation, and use the three lines and four zones as a guide to control the company's generated operating costs and improve the profit margin. It can be seen that the three lines and four zones of the transaction price are mainly aimed at the evaluation and analysis of the power generation company after operation, and provide support for the profit analysis after the operation and management of the company. It can also provide strategic support for the next stage of market competition quotations, especially the monthly centralized bidding quotations, and guide the quoting behavior that obtains higher profits.

[0083] Furthermore, the processing method for determining the profit evaluation rules based on the power generation profit and the transaction cost of the power generation enterprise is as follows: when the transaction cost of the power generation enterprise is the power generation operating cost, the historical transaction data of the power generation enterprise is analyzed to obtain the profit target cost, the break-even cost and the average sales price; the power generation profit interval relationship and the power generation operating cost interval relationship are determined based on the power generation profit, the power generation operating cost, the profit target cost, the break-even cost and the average sales price; the power generation operating cost profit evaluation rules are determined based on the power generation profit interval relationship and the power generation operating cost interval relationship.

[0084] It should be understood that the power generation profit interval relationship includes: P y ∈(P t , +∞), P y ∈(0,P t ), P y ∈(P ml , 0) and P y ∈(-∞,P ml ), the power generation operation cost interval relationship includes: C oc ≤C tc , C tc <C oc ≤C Bec , C Bec <C oc ≤C s and C oc >C s , P y is the power generation profit, P ml is the marginal loss profit, P t is the profit target profit, C oc is the power generation operating cost, C tc is the profit target cost, C Bec is the break-even cost, C s The average selling price.

[0085] It should also be noted that for coal-fired power plants, the power generation costs can be divided into fixed costs and operating costs (i.e. power generation operating costs). Fixed costs mainly include equipment depreciation costs, wage and financial costs, etc.; operating costs mainly include fuel costs, operating and maintenance costs, auxiliary power consumption costs and environmental protection costs. For thermal power plants, their fixed costs are relatively low, and are relatively fixed during the actual operation of power companies. The main influencing factor of power generation costs is operating costs. Among them, fuel costs are the main component of operating costs.

[0086] Power generation cost = fixed cost + operating cost, fixed cost = depreciation cost + financial salary cost + management cost, operating cost = total fuel cost + auxiliary power consumption cost + environmental protection cost + maintenance cost.

[0087] Further, the processing method of constructing the profit evaluation model of power generation operation cost according to the profit evaluation rule of power generation operation cost is to construct the profit evaluation model of power generation operation cost through the three-line and four-area function equation of power generation operation cost according to the profit evaluation rule of power generation operation cost;

[0088] The function equation of power generation operation cost of three lines and four zones is:

[0089] P y ∈(P t , +∞), C oc ≤C tc

[0090] P y ∈(0,P t ), C tc <C oc ≤C Bec

[0091] P y ∈(P ml ,0),C Bec <C oc ≤C s

[0092] P y ∈(-∞,P ml ), C oc >C s

[0093] Where P y is the power generation profit, P ml is the marginal loss profit, P t is the profit target profit, C oc is the power generation operating cost, C tc is the profit target cost, C Bec is the break-even cost, C s The average selling price.

[0094] It should also be noted that the estimated profit target cost, break-even cost and average sales price are obtained based on the company's historical transaction data and historical cost analysis. When the operating cost is lower than the profit target cost, due to good operation optimization, the actual operating cost is lower than the estimated fuel cost, and the company's profit is maximized and higher than the target profit; the actual operating cost is between the profit target cost and the break-even cost, the operation is good, there is profit but the profit target is not reached, which is the incremental high efficiency zone; when the operating cost is between the profit balance cost and the average sales price, there is a loss, but it can still maintain operation, which is the marginal effective zone; if the operating cost is greater than the average sales price, the company not only cannot make any profit, but also suffers serious losses, which is the operation ineffective zone.

[0095] In this embodiment, the target electricity quantity of the power generation enterprise and the target electricity price corresponding to the target electricity quantity are first determined, and then the power generation revenue data is determined according to the target electricity quantity and the target electricity price, and then the power generation profit is determined according to the power generation revenue data and the absolute cost of the power generation enterprise, and finally a profit evaluation model is constructed according to the power generation profit and the transaction cost of the power generation enterprise, and the transaction cost is profit evaluated based on the profit evaluation model. Compared with the prior art, which requires financial personnel to manually count transaction data and cost data and then perform data analysis, resulting in a long and cumbersome evaluation time, this embodiment realizes the automatic evaluation of the transaction cost of the power generation enterprise through the profit evaluation model, thereby quickly completing the accurate evaluation of the transaction cost profit.

[0096] Reference Figure 3 , Figure 3 This is a structural block diagram of the first embodiment of the transaction cost evaluation system for power generation according to the present invention.

[0097] like Figure 3 As shown, the power generation transaction cost evaluation system proposed in the embodiment of the present invention includes:

[0098] Determination module 3001, used to determine the target electricity quantity of the power generation enterprise and the target electricity price corresponding to the target electricity quantity;

[0099] A calculation module 3002 is used to determine power generation revenue data according to the target power quantity and the target power price;

[0100] The calculation module 3002 is further used to determine the power generation profit according to the power generation revenue data and the absolute cost of the power generation enterprise;

[0101] The evaluation module 3003 is used to construct a profit evaluation model according to the power generation profit and the transaction cost of the power generation enterprise, and to perform profit evaluation on the transaction cost based on the profit evaluation model.

[0102] Other embodiments or specific implementations of the transaction cost evaluation system for power generation of the present invention may refer to the above-mentioned method embodiments, which will not be described in detail here.

[0103] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or system including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or system. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or system including the element.

[0104] The serial numbers of the above embodiments of the present invention are only for description and do not represent the advantages or disadvantages of the embodiments.

[0105] Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus a necessary general hardware platform, and of course by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present invention, or the part that contributes to the prior art, can be embodied in the form of a software product, which is stored in a storage medium (such as a read-only memory / random access memory, a magnetic disk, or an optical disk), and includes a number of instructions for a terminal device (which can be a mobile phone, a computer, a server, or a network device, etc.) to execute the methods described in each embodiment of the present invention.

[0106] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A transaction cost evaluation method for power generation, characterized in that: The transaction cost assessment method for power generation comprises the following steps: Determine the target electricity quantity of the power generation enterprise and the target electricity price corresponding to the target electricity quantity; Determining power generation revenue data according to the target power quantity and the target power price; Determining power generation profit based on the power generation revenue data and the absolute cost of the power generation enterprise; A profit evaluation model is constructed according to the power generation profit and the transaction cost of the power generation enterprise, and a profit evaluation of the transaction cost is performed based on the profit evaluation model.

2. The method according to claim 1, characterized in that The step of determining power generation revenue data according to the target power quantity and the target power price includes: Calculating power generation revenue data according to the target power quantity and the target electricity price through a revenue function formula; The profit function formula is: P tr =∑C i ·Q i Where P tr is the power generation revenue data, C i is the target electricity price for the i-th type of electricity, Q i is the i-th type of electricity.

3. The method according to claim 2, characterized in that The step of constructing a profit evaluation model based on the power generation profit and the transaction cost of the power generation enterprise comprises: Determine a profit evaluation rule according to the power generation profit and the transaction cost of the power generation enterprise, wherein the profit evaluation rule includes a transaction price profit evaluation rule and a power generation operation cost profit evaluation rule; According to the transaction price profit evaluation rule and the power generation operation cost profit evaluation rule, a transaction price profit evaluation model and a power generation operation cost profit evaluation model are respectively constructed.

4. The method according to claim 3, characterized in that The step of determining the profit evaluation rule according to the power generation profit and the transaction cost of the power generation enterprise comprises: When the transaction cost of the power generation enterprise is the transaction price, the marginal cost electricity price, the break-even electricity price and the profit target electricity price are determined according to the power generation profit and the transaction price; Determining a power generation profit interval relationship and a transaction price interval relationship according to the power generation profit, the transaction price, the marginal cost electricity price, the break-even electricity price and the profit target electricity price; A transaction price profit evaluation rule is determined according to the power generation profit interval relationship and the transaction price interval relationship.

5. The method according to claim 4, characterized in that The step of constructing a transaction price profit evaluation model according to the transaction price profit evaluation rule comprises: According to the transaction price profit evaluation rules, a transaction price profit evaluation model is constructed through the transaction price three-line four-zone function equation; The transaction price three-line four-zone function equation is: P y ∈(-∞,P e ),C i ≤C m P y ∈(P e ,P Be ),C m <C i ≤C B P y ∈(P Be ,P t ),C B <C i ≤C e P y ∈(P t ,+∞),C i >C e Where P y is the power generation profit, P e For profit, P Be is the break-even profit, P t is the profit target profit, C i is the transaction price, C m is the marginal cost electricity price, C B is the break-even electricity price, C e The target electricity price for profitability.

6. The method according to claim 3, characterized in that The step of determining the profit evaluation rule according to the power generation profit and the transaction cost of the power generation enterprise comprises: When the transaction cost of the power generation enterprise is the power generation operation cost, the historical transaction data of the power generation enterprise is analyzed to obtain the profit target cost, the break-even cost and the average sales price; Determine a power generation profit interval relationship and a power generation operation cost interval relationship according to the power generation profit, the power generation operation cost, the profit target cost, the break-even cost and the average sales price; The profit evaluation rule of power generation operation cost is determined according to the power generation profit interval relationship and the power generation operation cost interval relationship.

7. The method according to claim 6, characterized in that The step of constructing a power generation operation cost profit evaluation model according to the power generation operation cost profit evaluation rule comprises: According to the power generation operation cost profit evaluation rule, a power generation operation cost profit evaluation model is constructed through the power generation operation cost three-line four-area function equation; The three-line four-area function equation of power generation operation cost is: P y ∈(P t ,+∞),C oc ≤C tc P y ∈(0,P t ),C tc <C oc ≤C Bec P y ∈(P ml ,0),C Bec <C oc ≤C s P y ∈(-∞,P ml ),C oc >C s Where P y is the power generation profit, P ml is the marginal loss profit, P t is the profit target profit, C oc is the power generation operating cost, C tc is the profit target cost, C Bec is the break-even cost, C s The average selling price.

8. A transaction cost evaluation system for power generation, characterized in that: The transaction cost evaluation system for power generation includes: A determination module is used to determine the target electricity quantity of the power generation enterprise and the target electricity price corresponding to the target electricity quantity; A calculation module, used to determine power generation revenue data according to the target power quantity and the target electricity price; The calculation module is further used to determine the power generation profit according to the power generation revenue data and the absolute cost of the power generation enterprise; An evaluation module is used to construct a profit evaluation model according to the power generation profit and the transaction cost of the power generation enterprise, and to perform profit evaluation on the transaction cost based on the profit evaluation model.

9. A transaction cost assessment device for power generation, characterized in that: The device comprises: a memory, a processor, and a transaction cost assessment program for power generation stored in the memory and executable on the processor, wherein the transaction cost assessment program for power generation is configured to implement the steps of the transaction cost assessment method for power generation as described in any one of claims 1 to 7.

10. A storage medium, characterized in that: The storage medium stores a transaction cost assessment program for power generation, and when the transaction cost assessment program for power generation is executed by a processor, the steps of the transaction cost assessment method for power generation as described in any one of claims 1 to 7 are implemented.

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