A low-carbon power operation and dispatching method considering grid-load interaction

Abstract

The present invention discloses a low-carbon electricity operation and dispatch method that takes into account grid-load interaction, comprising the following steps: determining target users, wherein the target users invest in and construct photovoltaic equipment; the power supply company performs operation and maintenance for the target users using a combination of online and offline methods; the power supply company and the target users receive investment in operation and maintenance and share revenue, thereby completing low-carbon electricity operation and dispatch. While providing distributed photovoltaic energy to users to meet their own functional needs, the present invention can also feed surplus energy back to the microgrid, achieving low-carbon electricity consumption. The present invention utilizes a user value assessment method to classify users and provide corresponding operation and maintenance to the respective users. Furthermore, through simple calculations, the present invention illustrates the sum of the output value and losses on both the grid and load sides under the distributed photovoltaic operation model, advocating for users to invest in photovoltaic equipment construction on their own, improving market flexibility, and promoting changes in the electricity market.

Description

Technical Field

[0001] The present invention belongs to the technical field of low-carbon power operation and dispatching, and in particular relates to a low-carbon power operation and dispatching method taking grid-load interaction into consideration. Background Art

[0002] The current power marketing market is increasingly competitive. It is difficult to recover electricity bills, the recovery cycle is long, and the growth of electricity consumption is slowing down. At the same time, society has increasingly high requirements for power supply reliability, quality, and economy, which has affected the economic benefits of corporate operations. Power marketing is facing fierce market competition, which has also prompted power marketing departments to break the traditional industry monopoly model and actively adopt new technologies and new models to achieve transformation. The present invention aims to serve both supply and demand sides, use user value assessment methods to construct a user electricity consumption characteristic model, so as to facilitate the supply side to distinguish and judge the demand side service needs, and by advocating that qualified users invest in photovoltaic construction on their own, the power supply company provides corresponding maintenance and operation, and achieve different goals with different user participation methods. Ultimately, under the premise of achieving low-carbon power consumption, it continuously improves user stickiness and user participation, develops and guides customer needs, forms competitive power commodity types, and strives to further optimize the power marketing environment and reform the power marketing model. Summary of the Invention

[0003] The purpose of this invention is to propose a low-carbon electricity operation and dispatch method that takes into account grid-load interaction, and to propose a new carbon reduction mechanism within the existing electricity operation and dispatch model. Specifically, while users' distributed photovoltaic energy supply meets their own functional needs, the excess energy can be fed back to the microgrid, achieving low-carbon electricity consumption. This invention is applied to users who have installed distributed clean energy power generation devices, utilizing user value assessment methods to classify users and provide corresponding operations and maintenance. Furthermore, through simple calculations, it illustrates the sum of the output value and losses on both the grid and load sides under the distributed photovoltaic operation model, thereby encouraging users to invest in photovoltaic equipment construction, improving market flexibility, and promoting changes in the electricity market.

[0004] To achieve the above objectives, the present invention provides a low-carbon power operation and dispatching method taking into account grid-load interaction, comprising the following steps:

[0005] Determine target users, said target users investing in and constructing photovoltaic equipment;

[0006] The power supply company provides operation and maintenance for the target users by combining online and offline methods;

[0007] The power supply company and the target user obtain operation and maintenance investment and profit distribution, and complete low-carbon power operation scheduling.

[0008] Optionally, the target users include large users and distributed users, the large users include large industrial users with high energy consumption; the distributed users include residential users, commercial users, agricultural users and fishery users.

[0009] Optionally, a combination of online and offline operations and maintenance can be used, including:

[0010] sensing and collecting data of the photovoltaic device;

[0011] Conduct data integration and management based on big data to build a precise equipment operation and maintenance platform;

[0012] Based on the equipment precise operation and maintenance platform, the photovoltaic equipment is intelligently detected and health managed.

[0013] Optionally, based on the equipment precision operation and maintenance platform, the method for performing intelligent detection and health management on the photovoltaic equipment includes:

[0014] Build an intelligent equipment diagnostic model through intelligent monitoring and intelligent diagnosis to monitor the communication status, operation status, energy efficiency status, maintenance status and fault status of the photovoltaic equipment;

[0015] When fault information of the photovoltaic equipment is monitored or user demand information is received, the online platform provides a self-diagnosis report, and the online platform distributes the information to platform experts, who conduct online consultation based on the self-diagnosis report;

[0016] When remote diagnosis cannot resolve the fault information of the photovoltaic equipment or the user demand information, GPS-based personnel scheduling is carried out to send operation and maintenance personnel for repair in a timely manner.

[0017] Optionally, the power supply company adopts a combination of online and offline operation and maintenance for the target users, and for the high-energy-consuming industrial users:

[0018] Conduct one-on-one full-process tracking of the high-energy-consuming industrial users, report electricity consumption analysis and summary to the high-energy-consuming industrial users in real time, conduct regular safety inspections on the photovoltaic equipment, and regularly repair and maintain the photovoltaic equipment;

[0019] Through the equipment precision operation and maintenance platform, fault problems are solved for large high-energy-consuming industrial users on a priority basis.

[0020] Optionally, the power supply company performs operation and maintenance for the target users in a combined online and offline manner, and for the distributed users:

[0021] The power supply company generates equipment monitoring reports and user power usage reports for the distributed users through the equipment precision operation and maintenance platform;

[0022] Regularly carry out safety inspections and maintenance of photovoltaic equipment for the distributed users;

[0023] When the photovoltaic equipment of the distributed user fails, a diagnostic report is generated using the equipment precision operation and maintenance platform, and experts are assigned to conduct online consultations; if the problem cannot be solved, operation and maintenance personnel are dispatched in a timely manner for repairs.

[0024] Optionally, the power supply company and the target user obtain operation and maintenance investment and profit distribution including:

[0025] Obtaining the losses of the power supply company and the income from electricity sales of the power supply company, and obtaining the sum of the output value and the losses of the power supply company based on the losses of the power supply company and the income from electricity sales of the power supply company;

[0026] Obtain the losses of target users and the income from electricity sales and return of electricity to target users.

[0027] Optionally, the sum of the output value and the loss of the power supply company is obtained based on the loss of the power supply company and the income from electricity sales of the power supply company, and is calculated as follows:

[0028] F′ EG =F′ RUN +F EN

[0029] R′ EG =R′ sell

[0030] W′ EG =R′ EG -F′ EG

[0031] Where F′ EG is the total system loss of the power supply company; F′ RUN F is the operating loss of the power supply company in all links; EN Environmental losses caused by power supply companies; R' EG is the income from electricity sales by the power supply company, R′ sell The income from electricity sales by the power supply company, including traditional electricity sales and the income from electricity sales from users; W′ EG It is the sum of the output value and loss of the power supply company under the operation mode of introducing distributed photovoltaic equipment;

[0032] The target user's losses and the target user's income from electricity sales and rebates are calculated as follows:

[0033] F′ cos =F′ pur-c +F pur-eq

[0034] W′ cos =R′ rep vF′cos

[0035] Where F′ cos is the target user loss, W′ cos The income from electricity sales returned to target users, F′ pur-c Indicates the power purchase loss from the power supply company; F pur-eq The loss of purchasing photovoltaic equipment for users; R' repv Indicates the income of users through photovoltaic power generation.

[0036] Technical effect of the invention: The present invention discloses a low-carbon power operation and dispatching method taking into account the interaction between the grid and the load. By evaluating the value of different users and the differences in their electricity consumption behavior characteristics, the user's electricity consumption type can be effectively distinguished, and the precise marketing for various users can be better realized; by encouraging users to invest in the construction of photovoltaic equipment, the user's electricity consumption can be "self-produced and self-sold", and the power supply company is introduced to maintain the photovoltaic equipment, thereby enhancing user stickiness and realizing low-carbon power consumption; large high-energy-consuming users use distributed photovoltaics to meet their own needs, and the remaining electricity is fed back to the microgrid, and the generated income is divided into shares by large users and power supply companies; the present invention saves infrastructure investment and operating costs for the source and network ends of the power system, and through the value evaluation of the load side, effectively distinguishes users with different electricity consumption behavior characteristics, and on the basis of attracting more users to participate in the construction of the power market, increases the user stickiness on the load side, forms a win-win situation for the power supply company and users, and gives impetus to low-carbon power consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] The accompanying drawings, which constitute part of this application, are intended to provide a further understanding of this application. The exemplary embodiments and descriptions of this application are intended to explain this application and do not constitute an improper limitation on this application. In the accompanying drawings:

[0038] Figure 1 This is a schematic diagram of the operation and maintenance management mode of an embodiment of the present invention;

[0039] Figure 2 Schematic diagram of energy supply and revenue distribution based on bilateral supply and demand in an embodiment of the present invention;

[0040] Figure 3 This is a flow chart of a low-carbon power operation and dispatching method taking into account grid-load interaction according to an embodiment of the present invention. DETAILED DESCRIPTION

[0041] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0042] It should be noted that the steps shown in the flowcharts of the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions, and that, although a logical order is shown in the flowcharts, in some cases, the steps shown or described can be executed in an order different from that shown here.

[0043] like Figure 1 As shown, this embodiment provides a low-carbon power operation and scheduling method taking into account grid-load interaction, including the following steps:

[0044] Determine target users, said target users investing in and constructing photovoltaic equipment;

[0045] The power supply company provides operation and maintenance for the target users by combining online and offline methods;

[0046] The power supply company and the target user obtain operation and maintenance investment and profit distribution, and complete low-carbon power operation scheduling.

[0047] Step 1: First, identify target users and divide them into large customers and distributed customers based on customer value assessment. Large users are high-energy-consuming industrial users, which are relatively few in number and large in size. Distributed users include residential users, commercial users, agricultural users, and fishery users, which are relatively large in number and small in size. The target user value assessment is shown in Table 1.

[0048] Table 1

[0049]

[0050] Step 2: The customer invests in the construction of photovoltaic equipment. Any surplus electricity generated by the photovoltaic equipment after meeting the customer's electricity needs can generate a certain amount of profit. For large, energy-intensive industrial users, the electricity generated by the photovoltaic equipment is far from sufficient to meet their needs, and large users still need to purchase electricity. For distributed users, residential users can rely on photovoltaic equipment to meet their daily needs and earn a profit. Commercial, agricultural, and fishery users still need to purchase electricity.

[0051] Step 3: The power supply company performs operation and maintenance, which primarily includes daily operations and maintenance. Operational tasks include monitoring duties, daily inspections, and switching operations; maintenance tasks include inspections, testing, minor repairs, major repairs, and emergency repairs. Customers performing their own operation and maintenance can increase their costs. Power supply companies can help reduce costs by offering these services. They can also leverage the power grid's technological and professional strengths to improve the quality and efficiency of PV power plant operation and maintenance, ensuring the safe and reliable operation of PV equipment. Traditional offline operation and maintenance methods are associated with high labor costs and low efficiency. With the advancement of digitalization, a hybrid online / offline operation and maintenance model is being adopted. This model utilizes data sensing and collection from PV equipment, integrated and processed using big data technologies, and intelligently monitors and manages the health of PV equipment. Through intelligent monitoring and diagnosis, a smart equipment diagnostic model is constructed to monitor the communication status, operating status, energy efficiency, maintenance status, and fault conditions of PV equipment. When a device fault is detected or a customer request is received, the online platform distributes the information to its experts, who then provide a self-diagnostic report and conduct online consultations. If remote diagnosis cannot solve the problem, GPS-based personnel dispatch is performed; Figure 3 This comprehensive, integrated, all-encompassing, all-scenario, and all-ecological management model transforms extensive management into refined management and passive operations into predictive proactive operations, thereby providing users with smarter, more efficient, and more comprehensive services. The service content is designed as follows for different customer types:

[0052] (1) Customer service content design for high-energy-consuming industrial enterprises

[0053] Although large, energy-intensive industrial customers are few in number, they account for a significant portion of electricity consumption. Careful operation and maintenance for these customers during peak hours is crucial. Especially during periods of significant fluctuation in electricity consumption, one-on-one customer management is essential, providing comprehensive power analysis reports and troubleshooting in a timely manner.

[0054] 1) To provide personalized services to key customers, consider establishing a dedicated key account manager to provide one-on-one tracking throughout the entire process. This dedicated account manager should be proficient in comprehensive expertise in metering, billing, and other areas. Key customers can contact the dedicated manager at any time through various messaging methods. When necessary, the manager can accept commissions from key customers and negotiate with the power supply company on behalf of relevant departments within the company regarding any issues that require resolution in their business processes.

[0055] 2) Timely report detailed power consumption analysis summaries to major customers. The power supply company provides analysis reports on their power consumption to help major customers better optimize their power consumption plans and effectively reduce unreasonable losses.

[0056] 3) Regularly conduct safety inspections of photovoltaic equipment for key customers and dispatch dedicated power technology teams to perform equipment repair and maintenance to address potential safety issues arising from equipment wear and tear. We will promptly understand the specific operating conditions of key customers' equipment, troubleshoot potential malfunctions, and effectively prevent them before they occur.

[0057] 4) Leverage the intelligent platform to further improve the troubleshooting speed for key users. Establish a key customer membership system on the platform to prioritize troubleshooting for key customers and shorten troubleshooting time.

[0058] (2) Distributed customer service content design

[0059] This customer group has a large customer base and has broad growth potential in electricity consumption. Therefore, the marketing measures taken for electricity customers mainly include: timely reporting of power outages, free calibration of metering devices, and free periodic safety inspections of fixed equipment.

[0060] 1) The power supply company needs to equip certain power metering equipment for the specific power consumption of electricity users. The monitoring platform can generate equipment monitoring reports and user power usage reports to facilitate users to control equipment status and resource usage.

[0061] 2) Use the platform to regularly conduct safety supervision of photovoltaic equipment.

[0062] 3) When a user's photovoltaic equipment fails, the platform can generate a diagnostic report and assign experts to conduct online consultations. If the problem cannot be solved, operation and maintenance personnel will be dispatched in a timely manner for repairs.

[0063] Step 4: Operation and maintenance investment and profit distribution

[0064] (1) Large energy-intensive industrial customers

[0065] Investing in photovoltaic equipment involves not only construction but also operation and maintenance costs. Furthermore, while photovoltaic power generation meets customer electricity needs, it can also generate revenue. Large customers, compared to distributed customers, have a stronger bond with power supply companies. This can be achieved through a contract whereby both parties share the photovoltaic power generation revenue proportionally, indirectly providing operational and maintenance benefits to the power supply company.

[0066] (2) Distributed Clients

[0067] Distributed customers can use the platform to generate free equipment monitoring and power usage reports, and then pay for expert diagnosis. If offline repairs are required after diagnosis, the platform can dispatch personnel based on GPS to perform on-site repairs at the customer's expense. This strategy reduces labor costs for power companies and the financial burden on customers, creating a win-win situation for both companies and customers.

[0068] like Figure 2 As shown, the power supply company cooperates with users. First, users purchase photovoltaic equipment on their own. If the photovoltaic equipment generates enough electricity to meet user needs, the excess electricity can be fed back to the microgrid. If it cannot meet user needs, the user can purchase electricity from the power supply company. Second, the sum of the output value and losses on both the grid and load sides under the above operating model can be obtained by combining the power supply company's losses, the power supply company's income from electricity sales, and the user's losses and income from the federated electricity sales. The specific formula is as follows:

[0069] (1) Power supply company

[0070] 1) Power supply company losses

[0071] The power company loss can be expressed as

[0072] F′ EG =F′ RUN +F EN

[0073] Where F′ EG is the total system loss of the power supply company; F′ RUN F is the operating loss of the power supply company in all links; EN Environmental losses caused by power supply companies.

[0074] 2) Income from electricity sales by power supply companies

[0075] The income from electricity sales of the power supply company can be expressed as

[0076] R′ EG =R′ sell

[0077] Where R′ EG is the income from electricity sales by the power supply company, R′ sell The income from electricity sales by power supply companies includes traditional electricity sales and income from electricity sales from users distributed in proportion.

[0078] Therefore, the sum of the output value and loss of the power supply company W′ under the operation mode of introducing distributed photovoltaic equipment is EG for

[0079] W′ EG =R′′GF′ EG

[0080] (2)User

[0081] User loss can be expressed as

[0082] F′ cos =F′ pur-c +F′ pur-eq

[0083] Where F′ cos is the target user loss, F' pur-c Indicates the power purchase loss from the power supply company; F pur-eq The loss of purchasing photovoltaic equipment for users.

[0084] The income from electricity sales and electricity rebates by users can be expressed as

[0085] W′ cos =R′ repv -F′ cos

[0086] Where W′ cos The income from electricity sales returned to the target users, R′ repv Indicates the income of users through photovoltaic power generation.

[0087] Step 5: The supply and demand sides achieve a win-win goal. The power supply company reduces the cost of transformers and lines, and reduces the cost of unit construction and maintenance for power generation enterprises, which increases the efficiency of the power supply company and is also conducive to the company's green transformation. At the same time, the model of self-generation and self-use of surplus electricity and grid connection can reduce users' electricity expenses. In the long run, users can recover costs and obtain benefits, ultimately achieving the strategic goal of a win-win situation for the company and its customers.

[0088] The above description is merely a preferred embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present application should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. A low-carbon power operation and dispatching method taking into account grid-load interaction, characterized in that: The following steps are involved: Determine target users, said target users investing in and constructing photovoltaic equipment; The power supply company provides operation and maintenance for the target users by combining online and offline methods; The power supply company and the target user obtain operation and maintenance investment and profit distribution, and complete low-carbon power operation and dispatch; The combination of online and offline operation and maintenance includes: sensing and collecting data of the photovoltaic device; Conduct data integration and management based on big data to build a precise equipment operation and maintenance platform; Based on the equipment precision operation and maintenance platform, the photovoltaic equipment is intelligently detected and health managed; Based on the equipment precision operation and maintenance platform, the method for intelligent detection and health management of the photovoltaic equipment includes: Build an intelligent equipment diagnostic model through intelligent monitoring and intelligent diagnosis to monitor the communication status, operation status, energy efficiency status, maintenance status and fault status of the photovoltaic equipment; When fault information of the photovoltaic equipment is monitored or user demand information is received, the online platform provides a self-diagnosis report, and the online platform distributes the information to platform experts, who conduct online consultation based on the self-diagnosis report; When remote diagnosis cannot resolve the fault information of the photovoltaic equipment or the user demand information, GPS-based personnel dispatch is carried out to promptly dispatch operation and maintenance personnel for repair; The power supply company and the target user obtain operation and maintenance investment and profit distribution including: Obtaining the losses of the power supply company and the income from electricity sales of the power supply company, and obtaining the sum of the output value and the losses of the power supply company based on the losses of the power supply company and the income from electricity sales of the power supply company; Obtain target user losses and income from electricity sales and rebates to target users; Based on the losses of the power supply company and the income from electricity sales of the power supply company, the sum of the output value and losses of the power supply company is obtained, which is calculated as follows: Where, is the total system loss of the power supply company; Operational losses in all links of the power supply company; Environmental losses caused by power supply companies; The income from electricity sales by the power supply company, The income from electricity sales by power supply companies, including traditional electricity sales and income from electricity sales from users distributed in proportion; It is the sum of the output value and loss of the power supply company under the operation mode of introducing distributed photovoltaic equipment; The target user's losses and the target user's income from electricity sales and rebates are calculated as follows: Where, Loss for target users, Return the income from electricity sales to target users, Indicates the power purchase loss of users from power supply companies; Losses incurred when purchasing photovoltaic equipment for users; Indicates the income of users through photovoltaic power generation.

2. The low-carbon power operation and dispatching method taking into account grid-load interaction according to claim 1, characterized in that: The target users include large users and distributed users. The large users include large industrial users with high energy consumption; the distributed users include residential users, commercial users, agricultural users and fishery users.

3. The low-carbon power operation and dispatching method taking into account grid-load interaction according to claim 2, characterized in that: The power supply company adopts a combination of online and offline operation and maintenance for the target users. For the high-energy-consuming industrial users: Conduct one-on-one full-process tracking of the high-energy-consuming industrial users, report electricity consumption analysis and summary to the high-energy-consuming industrial users in real time, conduct regular safety inspections on the photovoltaic equipment, and regularly repair and maintain the photovoltaic equipment; Through the equipment precision operation and maintenance platform, fault problems are solved for large high-energy-consuming industrial users on a priority basis.

4. The low-carbon power operation and dispatching method taking into account grid-load interaction according to claim 2, characterized in that: The power supply company adopts a combination of online and offline operation and maintenance for the target users, and for the distributed users: The power supply company generates equipment monitoring reports and user power usage reports for the distributed users through the equipment precision operation and maintenance platform; Regularly carry out safety inspections and maintenance of photovoltaic equipment for the distributed users; When the distributed user's photovoltaic equipment fails, the equipment precision operation and maintenance platform is used to generate a diagnostic report and assign experts to conduct online consultations; If the problem cannot be solved, send operation and maintenance personnel to repair it in time.

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