Power load management and control method, device and equipment and storage medium

By obtaining and calculating the network supply indicators and power load gap values ​​of various cities and generating power load control plans, the problem that power load management needs in the existing technology cannot be specifically quantified to each city, and the stability and order of power supply is achieved.

CN119543183APending Publication Date: 2025-02-28GUANGDONG POWER GRID CO LTD +1
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Patent Information

Application Number
CN202411625142.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-11-14
Publication Date
2025-02-28

AI Technical Summary

Technical Problem

The prior art has failed to quantify the power load management needs to each city, and lacks specific load control measures for each city, making it difficult to ensure the power supply during peak electricity consumption.

Method used

By obtaining the network supply load demand data from the province and cities, calculate the network supply indicators of each city, and calculate the power load gap value based on the current network supply load, generate the power load control plan for each city, and perform load control.

Benefits of technology

The maximum network supply load demand of the system is allocated according to the proportion of network supply load in various cities, solving the problem of how to quantify the load control of each city when power supply is tight, and ensuring the smooth and orderly power supply.

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Abstract

The invention discloses a power load management and control method, apparatus and device, and a storage medium. The method comprises the steps of obtaining network supply load demand data of a whole province and various cities; obtaining the current network supply load of each city, and calculating the power load gap value of each city according to the network supply index and the current network supply load of each city; and generating a power load management and control scheme of each city according to the power load gap value, and then managing and controlling the power load of each city according to the power load management and control scheme. According to the invention, the problem of how to specifically quantify the power load management demand to each city when the provincial power grid faces the shortage of power supply and enable each city to carry out reasonable load control according to the distributed indexes can be solved, and the stability and orderliness of power supply are ensured.
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Description

Technical Field

[0001] The present invention relates to the field of power supply control technology, and in particular to a power load control method, device, equipment and storage medium. Background Art

[0002] In recent years, with the rapid development of the economy and the improvement of people's living standards, the demand for electricity consumption has continued to grow. In 2024, the overall supply and demand of electricity in the country will be in a tight balance, and some regions will face a tight supply and demand situation during peak hours. In particular, the growth of high-tech manufacturing and high-tech service industries has further driven the increase in electricity demand, and the electricity supply and demand situation is relatively tense. By implementing load-side management and other measures, the stable and orderly supply of electricity is effectively guaranteed.

[0003] Many studies are devoted to finding execution methods and systems that combine grid demand response with orderly power consumption. Based on the new power load management system, a demand response invitation plan is established according to the grid gap demand, and the orderly power consumption plan and the user list and user indicators under the plan are selected. After the integration of demand response and orderly power consumption is completed, the users participating in the demand response are classified and the subsidies are calculated and issued. When there is a gap in the power grid, market means can be fully utilized to give play to the role of the demand response market. In addition, information is obtained by relying on the new power load management system, user load information is obtained through the power consumption information collection system and the dispatching control system, and fuzzy screening is performed through electricity price categories, household name keywords, and user industry information. Load control strategies are set, and a load regulation capacity evaluation system is established to dynamically evaluate the regulation capabilities of each user and industry.

[0004] The above conventional methods mainly achieve power load management by establishing a user list and obtaining user information, but they often do not provide specific instructions on how to control and distribute loads, do not quantify power load management needs in each city, and lack specific load control measures for each city. Summary of the invention

[0005] The present invention provides a method, device, equipment and storage medium for power load management and control to solve the technical problem that the prior art fails to quantify the power load management demand specifically for each city and lacks specific load control means for each city.

[0006] In order to solve the above technical problems, an embodiment of the present invention provides a method for controlling power loads, including:

[0007] Obtain the network supply load demand data of the province and various cities; wherein, the network supply load demand data includes: the network supply load demand of the province, the average network supply demand of the province corresponding to the network supply demand base date, the average network supply demand of various cities on the network supply demand base date, the shortage of local electricity peak indicators of various cities, the deviation of local electricity output of the province, the deviation of local electricity output of the power supply bureau, the estimated peak shifting amount of the province on the day, the quarterly peak shifting indicators of the province, the quarterly peak shifting indicators of various cities, and the rewards for network supply indicators of various cities;

[0008] Calculate network supply indicators of various cities based on the network supply load demand data;

[0009] Obtain the current grid supply load of each city, and calculate the power load gap value of each city based on the grid supply indicators and current grid supply load of each city;

[0010] An electric power load control plan for each city is generated according to the electric power load gap value, and then the electric power load of each city is controlled according to the electric power load control plan.

[0011] As a preferred solution, the power load control plan for each city is generated according to the power load gap value, including:

[0012] The nearest peak period is taken as the gap period, and the power load control plan for each city is generated according to the power load gap value and the gap period.

[0013] As a preferred solution, the power load of each city is controlled according to the power load control plan, including:

[0014] For users with hourly or minute-level demand response, a power outage plan for each user is generated according to the power management and control plan, and the power outage plan is sent to each user so that each user can shut down the power according to the power outage plan;

[0015] For users who control load in seconds, a power outage plan for each user is generated according to the power management and control plan, and each user is directly controlled to perform power outage according to the power outage plan.

[0016] As a preferred solution, the calculation formula of the network supply index is:

[0017]

[0018] Where P n网供指标 It is the network supply index of various cities; 全省网供需求 Supply load demand for the whole province; 全省基准 is the average value of the provincial network supply demand corresponding to the network supply demand base date; P n基准 The average grid supply demand of n cities on the grid supply demand base day minus the local power peak indicator shortfall; P 全省地方电偏差 and Pn地方电偏差 They are the deviation of local power output in the province and the local power output deviation of the power supply bureau; P 全省错峰量 P is the estimated peak shift volume for the whole province on that day; 全省错峰指标 and P n错峰指标 are the quarterly peak-shifting indexes of the whole province and the quarterly peak-shifting indexes of n cities respectively; P 全省奖励总 The sum of the rewards for network supply indicators obtained by various cities; P n奖励 It is the reward obtained by city n after actively taking measures to enhance the peak power generation capacity of thermal power plants within its jurisdiction, ensuring that key power sources are put into operation ahead of schedule or on schedule, and actively cultivating demand response resources. It is a fixed value within days.

[0019] On the basis of the above-mentioned embodiment, another embodiment of the present invention provides a power load control device, including: a network supply load demand data acquisition module, a network supply index calculation module, a power load gap value calculation module and a power load control module;

[0020] The network supply load demand data acquisition module is used to obtain the network supply load demand data of the whole province and various cities; wherein, the network supply load demand data includes: the network supply load demand of the whole province, the average network supply demand of the whole province corresponding to the network supply demand base date, the average network supply demand of various cities on the network supply demand base date, the shortage of local electricity peak indicators of various cities, the deviation of local electricity output of the whole province, the deviation of local electricity output of the power supply bureau, the estimated peak shifting amount of the whole province on the day, the quarterly peak shifting indicator of the whole province, the quarterly peak shifting indicator of various cities, and the rewards for network supply indicators of various cities;

[0021] The network supply index calculation module is used to calculate the network supply index of each city according to the network supply load demand data;

[0022] The power load gap value calculation module is used to obtain the current network supply load of each city, and calculate the power load gap value of each city according to the network supply index and the current network supply load of each city;

[0023] The power load control module is used to generate power load control plans for various cities according to the power load gap value, and then control the power load of various cities according to the power load control plan.

[0024] As a preferred solution, the power load control plan for each city is generated according to the power load gap value, including:

[0025] The nearest peak period is taken as the gap period, and the power load control plan for each city is generated according to the power load gap value and the gap period.

[0026] As a preferred solution, the power load of each city is controlled according to the power load control plan, including:

[0027] For users with hourly or minute-level demand response, a power outage plan for each user is generated according to the power management and control plan, and the power outage plan is sent to each user so that each user can shut down the power according to the power outage plan;

[0028] For users who control load in seconds, a power outage plan for each user is generated according to the power management and control plan, and each user is directly controlled to perform power outage according to the power outage plan.

[0029] As a preferred solution, the calculation formula of the network supply index is:

[0030]

[0031] Among them, P n网供指标 It is the network supply index of various cities; 全省网供需求 Supply load demand for the whole province; P 全省基准 P is the average value of the provincial network supply demand corresponding to the network supply demand base date; n基准 The average grid supply demand of n cities on the grid supply demand base day minus the local power peak indicator shortfall; P 全省地方电偏差 and P n地方电偏差 They are the deviation of local power output in the province and the local power output deviation of the power supply bureau; P 全省错峰量 P is the estimated peak shift volume for the whole province on that day; 全省错峰指标 and P n错峰指标 are the quarterly peak-shifting indexes of the whole province and the quarterly peak-shifting indexes of n cities respectively; P 金省奖励总 The sum of the rewards for network supply indicators obtained by various cities; P n奖励 It is the reward obtained by city n after actively taking measures to enhance the peak power generation capacity of thermal power plants within its jurisdiction, ensuring that key power sources are put into operation ahead of schedule or on schedule, and actively cultivating demand response resources. It is a fixed value within days.

[0032] Based on the above embodiments, another embodiment of the present invention provides an electronic device, which includes a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor, and when the processor executes the computer program, the power load control method described in the above invention embodiments is implemented.

[0033] Based on the above embodiments, another embodiment of the present invention provides a storage medium, which includes a stored computer program, wherein when the computer program is running, the device where the storage medium is located is controlled to execute the power load control method described in the above invention embodiment.

[0034] Compared with the prior art, the embodiments of the present invention have the following beneficial effects:

[0035] The present invention provides a method for controlling electric load, which obtains network supply load demand data of the whole province and various cities; wherein the network supply load demand data include: the network supply load demand of the whole province, the average network supply demand of the whole province corresponding to the network supply demand base date, the average network supply demand of various cities on the network supply demand base date, the shortage of local electricity peak index of various cities, the deviation of local electricity output of the whole province, the deviation of local electricity output of the power supply bureau, the estimated peak shifting amount of the whole province on the day, the quarterly peak shifting index of the whole province, the quarterly peak shifting index of various cities, and the network supply index reward of various cities; according to the network supply load demand data, the network supply index of various cities is calculated; the current network supply load of various cities is obtained, and the power load gap value of various cities is calculated according to the network supply index and the current network supply load of various cities; the power load control plan of each city is generated according to the power load gap value, and then the power load of each city is controlled according to the power load control plan. The present invention distributes the load demand of the system network according to the proportion of the network load of each city, and solves the problem of how to quantify the power load management demand specifically to each city when the provincial power grid faces tight power supply, so that each city can perform reasonable load control according to the allocated indicators, thereby ensuring a smooth and orderly power supply. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a flow chart of a method for controlling power load provided by one embodiment of the present invention;

[0037] Figure 2 It is a structural schematic diagram of a power load control device provided by one embodiment of the present invention. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solutions and advantages of this application clearer, the technical solutions in this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0039] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0040] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0041] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0042] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of the associated objects, indicating that there may be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0043] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0044] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0045] Embodiment 1

[0046] Please refer to Figure 1 , is a flow chart of a power load control method provided by an embodiment of the present invention, comprising the following specific steps:

[0047] S1. Obtain the network supply load demand data of the province and various cities; wherein, the network supply load demand data includes: the network supply load demand of the province, the average network supply demand of the province corresponding to the network supply demand base date, the average network supply demand of various cities on the network supply demand base date, the shortage of local power peak indicators of various cities, the deviation of local power output of the province, the deviation of local power output of the power supply bureau, the estimated peak shifting amount of the province on the day, the quarterly peak shifting indicators of the province, the quarterly peak shifting indicators of various cities, and the rewards for network supply indicators of various cities;

[0048] Specifically, the existing load control methods mainly achieve power load management from the perspective of demand-side response by establishing a user list and obtaining user information, but they often do not provide specific instructions on how to control and distribute loads. In addition, conventional load control strategies are not relatively complete, and are not specifically controlled in time dimensions such as hours, minutes, and seconds. If extreme power supply and demand conditions are encountered, the load side cannot execute demand-side response and orderly power consumption on time and in quantity, which may affect the actual power supply security.

[0049] In view of the above problems, the present invention provides a method for controlling power load, which specifically includes the following steps:

[0050] 1. Calculation of load network supply indicators in various cities:

[0051] The load network supply index of each city is obtained by allocating the system's maximum network supply load demand according to the network supply load ratio of each city, and then deducting the peak shifting index of each city on the same day. Among them:

[0052] 1. The grid supply load ratio of each city is the ratio of the average grid supply demand of each city on the grid supply demand base day (the seven days with the largest grid supply load among the non-peak days in the previous quarter).

[0053] 2. The peak-shifting index of each city refers to the peak-shifting power value allocated to each city according to a certain proportion of the province's supply gap. The peak-shifting ratio takes into account the maximum industrial load that can be shifted and the GDP output impact coefficient of each city, and is formulated based on the principle that the number of days of shutdown of industrial users in each city is basically equal.

[0054] 3. To avoid the impact of the randomness of local wind and solar power output on the grid supply indicators, the measurable local wind and solar power output will be included in the overall planning of the provincial grid supply capacity. Taking into account the different load characteristics of various cities, they are formulated according to the morning peak, noon peak and evening peak.

[0055] 4. In order to improve the peak capacity of local thermal power, local thermal power peak indicators (the average value of local thermal power peak output corresponding to the grid supply demand base date) will be issued to all cities every quarter. For cities that fail to meet the local thermal power peak indicators, deductions will be made from the grid supply indicators of the next quarter.

[0056] 5. To encourage cities to actively take measures such as improving the peak power generation capacity of thermal power in their jurisdictions, ensuring that key power sources are put into operation ahead of schedule or on schedule, and actively cultivating demand response resources, grid supply index incentives are set. After cities and municipalities take the above effective measures, they can obtain certain grid supply index rewards. A portion of the grid supply capacity is selected every day as a reward for distribution.

[0057] First, obtain the network supply load demand data of the province and various cities; wherein, the network supply load demand data includes: the network supply load demand of the province, the average network supply demand of the province corresponding to the network supply demand base date, the average network supply demand of various cities on the network supply demand base date, the shortage of local electricity peak indicators of various cities, the deviation of local electricity output of the province, the deviation of local electricity output of the power supply bureau, the estimated peak shifting amount of the province on that day, the quarterly peak shifting indicator of the province, the quarterly peak shifting indicator of various cities, and the rewards for network supply indicators of various cities.

[0058] S2. Calculate the network supply index of each city according to the network supply load demand data;

[0059] Preferably, the calculation formula of the network supply index is:

[0060]

[0061] Where P n网供指标 It is the network supply index of various cities; 全省网供需求 Supply load demand for the whole province; P 全省基准 P is the average value of the provincial network supply demand corresponding to the network supply demand base date; n基准 The average grid supply demand of n cities on the grid supply demand base day minus the local power peak indicator shortfall; P 全省地方电偏差 and P n地方电偏差 They are the deviation of local power output in the province and the local power output deviation of the power supply bureau; P 全省错峰量 P is the estimated peak shift volume for the whole province on that day; 全省错峰指标 and P n错峰指标 are the quarterly peak-shifting indexes of the whole province and the quarterly peak-shifting indexes of n cities respectively; P 全省奖动总 The sum of the rewards for network supply indicators obtained by various cities; P n奖励 It is the reward obtained by city n after actively taking measures to enhance the peak power generation capacity of thermal power plants within its jurisdiction, ensuring that key power sources are put into operation ahead of schedule or on schedule, and actively cultivating demand response resources. It is a fixed value within days.

[0062] Then, according to the network supply load demand data, the network supply index of each city is calculated:

[0063] In summary, the calculation formula for the network supply index of city n can be summarized as the network supply demand allocated to city n minus the peak shifting volume of city n on the same day, as follows:

[0064]

[0065] Among them, P n网供指标 represents the network supply index of city n; P 全省网供需求 Represents the load demand of the provincial power grid; P 全省基准 P represents the average value of the provincial network supply demand corresponding to the base date of network supply demand; n基准 It represents the average value of the grid supply demand in n cities on the grid supply demand base day minus the shortfall of the local power peak index (i.e. the local thermal power peak output in this quarter is lower than the value of the local thermal power peak index, which is capped at 100,000 kilowatts); P 全省地方电偏差 and P n地方电偏差 They represent the deviation of the local power output of the province and the power supply bureau from the benchmark local power output in the near future (excluding wind and solar power, mainly local hydropower, and local thermal power deviation is not included in the statistics); P 全省错峰量 It indicates the expected peak shift volume of the whole province on that day; P 全省错峰指标 and P n错峰指标 They represent the quarterly peak-shifting index of the whole province and the quarterly peak-shifting index of n cities respectively; P 全省奖动总 Refers to the sum of the network supply index rewards obtained by various cities; P n奖励 It refers to the reward obtained by city n after actively taking effective measures such as improving the peak power generation capacity of thermal power plants within its jurisdiction, ensuring that key power sources are put into operation ahead of schedule or on schedule, and actively cultivating demand response resources. It is a fixed value within a day.

[0066] In order to urge the power supply bureaus in various cities to make the best use of the network supply indicators and give full play to their supply capacity. According to the three-level requirements of the maximum load level of each power supply bureau, all cities need to strictly control the network supply indicators within this range. The load level classification range and network supply indicator usage range are shown in the following Table 1:

[0067] Corresponding range of each gear Network supply indicator usage range First gear 10 million kilowatts load or more 95%-101% Second gear 2.5 million to 10 million load 95%-102% Third gear 2.5 million load or less 90%-106%

[0068] Table 1 Load level classification range and grid supply index usage range

[0069] The portion of each city's usage that exceeds the upper limit of the city's grid supply indicators is the specific load that requires power load control.

[0070] S3. Obtain the current grid supply load of each city, and calculate the power load gap value of each city according to the grid supply index and current grid supply load of each city;

[0071] S4. Generate a power load control plan for each city based on the power load gap value, and then control the power load of each city based on the power load control plan.

[0072] Preferably, generating the power load management and control plan for each city based on the power load gap value includes: taking a recent peak period as a gap period, and generating the power load management and control plan for each city based on the power load gap value and the gap period.

[0073] Preferably, the power load of each city is controlled according to the power load management and control plan, including: for users with hourly or minute-level demand response, a power outage plan is generated for each user according to the power management and control plan, and the power outage plan is sent to each user so that each user can cut off power according to the power outage plan; for users with second-level load control, a power outage plan is generated for each user according to the power management and control plan, and each user is directly controlled to perform a power outage according to the power outage plan.

[0074] 3. Load control strategy based on time dimension:

[0075] The provincial power grid dispatching agency transmits the load gap and time period to the new load management system through the OMS system (Operation Management System). The load management system transmits the current controllable load resource quantity to the OMS for formulating load demand.

[0076] Hourly and minute-level demand response is mainly used in scenarios where the province's supply is tight. The control scope is the demand response users connected to the load management system.

[0077] Second-level load control means that the load can be controlled directly without notifying the customer and approving the control process. It is mainly used in scenarios where emergency load control is required in the event of a power grid accident. The control scope is for users who have signed a second-level load control agreement.

[0078] Day-ahead strategy: relevant information for initiating load management, including the number of gaps in each city and the gap period information.

[0079] Intraday strategy:

[0080] (I) Hourly and minute-level demand response:

[0081] The following data is sent to all cities in real time:

[0082] 1) Network supply index data of various cities, peak-shift warning signals of the whole province, and peak-shift warning signals of various municipal bureaus;

[0083] 2) Data on the gaps in local municipal bureaus:

[0084] Gap value: According to the current grid supply load - grid supply index = gap value, the gap data of each city is automatically calculated and can be modified.

[0085] Gap period: Displayed as the most recent peak period by default, and can be modified.

[0086] ① Provincial dispatching transfer load gap:

[0087] After clicking "Calculate Gap Data" on the provincial dispatching end, the gap data of each city will be automatically calculated according to the current network supply load - network supply index = gap value. The provincial dispatching end can modify the gap data of each city according to the load assessment of each peak period, and send it for review after the modification is completed. After review by the person in charge on duty, it will be sent to the new load management system.

[0088] ② Load gap in prefecture-level cities:

[0089] After clicking "Calculate Gap Data" on the local dispatching end, the local city gap data will be automatically calculated according to the current network supply load - network supply index = gap value. The local dispatching can modify the local city gap data according to the load assessment of each peak period, and send it for review after the modification is completed. After review by the person in charge on duty, it will be sent to the new load management system.

[0090] The dispatcher publishes the full gap data for a specific period of time. If the dispatcher publishes two load gaps for the same period, for example, a 200,000-kilowatt load gap is published for 14:00-16:00 at 11:00, and a 300,000-kilowatt load gap is published for 14:00-16:00 at 12:00, the new load management system will generate a new batch of load control plans based on the 100,000-kilowatt load gap. That is, the dispatcher publishes the actual load control gap to the load management system through the OMS, and the new load management system processes it as an incremental load gap to generate a control plan; if the increment is negative, the new load management system determines whether to trigger the process of notifying the user to resume production. That is, the original 200,000-kilowatt load gap continues to be executed, and then a 100,000-kilowatt load gap control sequence is generated according to the sequence. The specific control sequence will be sorted by the power supply bureau of each city according to the importance of its own users, and the least important users will be controlled first. The specific sequence may be different in each city.

[0091] (II) Second-level load control:

[0092] 1. Independent of the hourly and minute-level demand response pages, it can display the real-time controllable load values ​​of resources in each city at the second level.

[0093] The provincial control department can formulate the control requirements for all cities and counties in the province, and the local control department can formulate the control requirements for local cities.

[0094] 2. After completing the splicing of the station line change and the main network topology:

[0095] The OMS system displays the real-time controllable load value of resources at the substation level in seconds. Provincial and local dispatchers can log in to the OMS system. Provincial dispatchers can formulate control requirements for all stations in the province, and local dispatchers can formulate control requirements for specific stations in their regions. Real-time controllable load values ​​of resources at the hourly, minutely, and secondly levels are displayed in various cities. Real-time controllable load values ​​of resources at the hourly, minutely, and secondly levels are displayed for each substation and 10kV line.

[0096] Hourly and minute-level demand response is reflected in the following aspects: when each city learns of the load gap value (i.e. the load amount that needs to be controlled), it notifies users in advance and allows users to stop using electricity themselves. Second-level load control means that there is no need to notify customers and approve the control process. In the event of a power grid accident, the load is directly controlled in the scenario where emergency load control is required. The control scope is for users who have signed a second-level load control agreement. Each city signs hour-level, minute-level, and second-level load control agreements with users in the city based on their actual conditions.

[0097] It can be seen that the present invention provides a method for controlling power load. The present invention distributes the maximum network load demand of the system according to the network load ratio of each city, and solves the problem of how the provincial power grid can quantify the power load management demand to each city when facing tight power supply, so that each city can perform reasonable load control according to the allocated indicators, so as to achieve the purpose of ensuring a smooth and orderly power supply. The present invention also takes into account load control strategies in specific time dimensions, including hourly, minute-level, second-level, etc. Hourly and minute-level demand responses are mainly used in scenarios with tight supply across the province. The control range is demand response users who are connected to the load management system. Second-level load control means that the load is directly controlled without the need to notify customers and control process approval. Ensure the safety of power supply under extreme power supply and demand conditions.

[0098] Embodiment 2

[0099] Please refer to Figure 2 , is a schematic diagram of the structure of a power load control device provided by an embodiment of the present invention, the device comprising: a load demand data acquisition module, a network supply index calculation module, a power load gap value calculation module and a power load control module;

[0100] The network supply load demand data acquisition module is used to obtain the network supply load demand data of the whole province and various cities; wherein, the network supply load demand data includes: the network supply load demand of the whole province, the average network supply demand of the whole province corresponding to the network supply demand base date, the average network supply demand of various cities on the network supply demand base date, the shortage of local electricity peak indicators of various cities, the deviation of local electricity output of the whole province, the deviation of local electricity output of the power supply bureau, the estimated peak shifting amount of the whole province on the day, the quarterly peak shifting indicator of the whole province, the quarterly peak shifting indicator of various cities, and the rewards for network supply indicators of various cities;

[0101] The network supply index calculation module is used to calculate the network supply index of each city according to the network supply load demand data;

[0102] The power load gap value calculation module is used to obtain the current network supply load of each city, and calculate the power load gap value of each city according to the network supply index and the current network supply load of each city;

[0103] The power load control module is used to generate power load control plans for various cities according to the power load gap value, and then control the power load of various cities according to the power load control plan.

[0104] Preferably, generating the power load management and control plan for each city based on the power load gap value includes: taking a recent peak period as a gap period, and generating the power load management and control plan for each city based on the power load gap value and the gap period.

[0105] Preferably, the power load of each city is controlled according to the power load management and control plan, including: for users with hourly or minute-level demand response, a power outage plan is generated for each user according to the power management and control plan, and the power outage plan is sent to each user so that each user can cut off power according to the power outage plan; for users with second-level load control, a power outage plan is generated for each user according to the power management and control plan, and each user is directly controlled to perform a power outage according to the power outage plan.

[0106] Preferably, the calculation formula of the network supply index is:

[0107]

[0108] Among them, P n网供指标 It is the network supply index of various cities; 全省网供需求 Supply load demand for the whole province; P 全省基准 P is the average value of the provincial network supply demand corresponding to the network supply demand base date; n基准 The average grid supply demand of n cities on the grid supply demand base day minus the local power peak indicator shortfall; P 全省地方电偏差 and P n地方电偏差 They are the deviation of local power output in the province and the local power output deviation of the power supply bureau; P 全省错峰量 P is the estimated peak shift volume for the whole province on that day; 全省错峰指标 and P n错峰指标 are the quarterly peak-shifting indexes of the whole province and the quarterly peak-shifting indexes of n cities respectively; P 全省奖励总 The sum of the rewards for network supply indicators obtained by various cities; P n奖励 It is the reward obtained by city n after actively taking measures to enhance the peak power generation capacity of thermal power plants within its jurisdiction, ensuring that key power sources are put into operation ahead of schedule or on schedule, and actively cultivating demand response resources. It is a fixed value within days.

[0109] It should be noted that the device embodiments described above are merely schematic, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. In addition, in the accompanying drawings of the device embodiments provided by the present invention, the connection relationship between the modules indicates that there is a communication connection between them, which may be specifically implemented as one or more communication buses or signal lines. A person of ordinary skill in the art may understand and implement it without paying any creative effort.

[0110] Those skilled in the art can clearly understand that, for the sake of convenience and brevity, the specific working process of the device described above can refer to the corresponding process in the aforementioned method embodiment, and will not be repeated here.

[0111] Embodiment 3

[0112] Accordingly, an embodiment of the present invention provides an electronic device, comprising a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor, wherein the processor implements the power load control method described in the above-mentioned embodiment of the invention when executing the computer program.

[0113] The electronic device may be a computing device such as a desktop computer, a notebook, a palm computer, a cloud server, etc. The device may include, but is not limited to, a processor and a memory.

[0114] The processor may be a central processing unit (CPU), other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor or any conventional processor, etc. The processor is the control center of the device, and various interfaces and lines are used to connect various parts of the entire device.

[0115] Embodiment 4

[0116] Accordingly, an embodiment of the present invention provides a storage medium, which includes a stored computer program, wherein when the computer program is running, the device where the storage medium is located is controlled to execute the power load control method described in the above-mentioned embodiment of the invention.

[0117] The memory can be used to store the computer program, and the processor realizes various functions of the device by running or executing the computer program stored in the memory and calling the data stored in the memory. The memory can mainly include a program storage area and a data storage area, wherein the program storage area can store an operating system, at least one application required for a function, etc.; the data storage area can store data created according to the use of the mobile phone, etc. In addition, the memory can include a high-speed random access memory, and can also include a non-volatile memory, such as a hard disk, a memory, a plug-in hard disk, a smart memory card (Smart Media Card, SMC), a secure digital (Secure Digital, SD) card, a flash card (FlashCard), at least one disk storage device, a flash memory device, or other volatile solid-state storage devices.

[0118] The storage medium is a computer-readable storage medium, and the computer program is stored in the computer-readable storage medium. When the computer program is executed by the processor, the steps of each method embodiment described above can be implemented. Among them, the computer program includes computer program code, and the computer program code can be in source code form, object code form, executable file or some intermediate form, etc. The computer-readable medium may include: any entity or device capable of carrying the computer program code, recording medium, USB flash drive, mobile hard disk, disk, optical disk, computer memory, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), electric carrier signal, telecommunication signal and software distribution medium, etc. It should be noted that the content contained in the computer-readable medium can be appropriately increased or decreased according to the requirements of legislation and patent practice in the jurisdiction. For example, in some jurisdictions, according to legislation and patent practice, computer-readable media do not include electric carrier signals and telecommunication signals.

[0119] The above is a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the principle of the present invention. These improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A method for controlling power load, characterized in that: include: Obtain the network supply load demand data of the province and various cities; wherein, the network supply load demand data includes: the network supply load demand of the province, the average network supply demand of the province corresponding to the network supply demand base date, the average network supply demand of various cities on the network supply demand base date, the shortage of local electricity peak indicators of various cities, the deviation of local electricity output of the province, the deviation of local electricity output of the power supply bureau, the estimated peak shifting amount of the province on the day, the quarterly peak shifting indicators of the province, the quarterly peak shifting indicators of various cities, and the rewards for network supply indicators of various cities; Calculate the network supply index of each city based on the network supply load demand data; Obtain the current grid supply load of each city, and calculate the power load gap value of each city based on the grid supply indicators and current grid supply load of each city; An electric power load control plan for each city is generated according to the electric power load gap value, and then the electric power load of each city is controlled according to the electric power load control plan.

2. The power load control method according to claim 1, characterized in that: The generating of the power load control plan for each city according to the power load gap value includes: The nearest peak period is taken as the gap period, and the power load control plan for each city is generated according to the power load gap value and the gap period.

3. The power load control method according to claim 1, characterized in that: The power load control scheme is used to control the power load of various cities, including: For users with hourly or minute-level demand response, a power outage plan for each user is generated according to the power management and control plan, and the power outage plan is sent to each user so that each user can shut down the power according to the power outage plan; For users who control load in seconds, a power outage plan for each user is generated according to the power management and control plan, and each user is directly controlled to perform power outage according to the power outage plan.

4. The power load control method according to claim 1, characterized in that: The calculation formula of the network supply index is: Among them, P n网供指标 It is the network supply index of various cities; 全省网供需求 Supply load demand for the whole province; P 全省基准 is the average value of the provincial network supply demand corresponding to the network supply demand base date; P n基准 The average grid supply demand of n cities on the grid supply demand base day minus the local power peak indicator shortfall; P 全省地方电偏差 and P n地方电偏差 They are the deviation of local power output in the province and the local power output of the power supply bureau; P 全省错峰量 P is the estimated peak shift volume for the whole province on that day; 全省错峰指标 and P n错峰指标 are the quarterly peak-shifting indexes of the whole province and the quarterly peak-shifting indexes of n cities respectively; P 全省奖励总 The sum of the rewards for network supply indicators obtained by various cities; P n奖励 It is the reward obtained by city n after actively taking measures to enhance the peak power generation capacity of thermal power plants within its jurisdiction, ensuring that key power sources are put into operation ahead of schedule or on schedule, and actively cultivating demand response resources. It is a fixed value within days.

5. A power load control device, characterized in that: include: Network supply load demand data acquisition module, network supply index calculation module, power load gap value calculation module and power load control module; The network supply load demand data acquisition module is used to obtain the network supply load demand data of the whole province and various cities; wherein, the network supply load demand data includes: the network supply load demand of the whole province, the average network supply demand of the whole province corresponding to the network supply demand base date, the average network supply demand of various cities on the network supply demand base date, the shortage of local electricity peak indicators of various cities, the deviation of local electricity output of the whole province, the deviation of local electricity output of the power supply bureau, the estimated peak shifting amount of the whole province on the day, the quarterly peak shifting indicator of the whole province, the quarterly peak shifting indicator of various cities, and the rewards for network supply indicators of various cities; The network supply index calculation module is used to calculate the network supply index of each city according to the network supply load demand data; The power load gap value calculation module is used to obtain the current network supply load of each city, and calculate the power load gap value of each city according to the network supply index and the current network supply load of each city; The power load control module is used to generate power load control plans for various cities according to the power load gap value, and then control the power load of various cities according to the power load control plan.

6. The power load control device according to claim 5, characterized in that: The generating of the power load control plan for each city according to the power load gap value includes: The nearest peak period is taken as the gap period, and the power load control plan for each city is generated according to the power load gap value and the gap period.

7. The power load control device according to claim 5, characterized in that: The power load control scheme is used to control the power load of various cities, including: For users with hourly or minute-level demand response, a power outage plan for each user is generated according to the power management and control plan, and the power outage plan is sent to each user so that each user can shut down the power according to the power outage plan; For users who control load in seconds, a power outage plan for each user is generated according to the power management and control plan, and each user is directly controlled to perform power outage according to the power outage plan.

8. The power load control device according to claim 5, characterized in that: The calculation formula of the network supply index is: Among them, P n网供指标 It is the network supply index of various cities; 全省网供需求 Supply load demand for the whole province; P 全省基准 is the average value of the provincial network supply demand corresponding to the network supply demand base date; P n基准 The average grid supply demand of n cities on the grid supply demand base day minus the local power peak indicator shortfall; P 全省地方电偏差 and P n地方电偏差 They are the deviation of local power output in the province and the local power output of the power supply bureau; P 全省错峰量 P is the estimated peak shift volume for the whole province on that day; 全省错峰指标 and P n错峰指标 are the quarterly peak-shifting indexes of the whole province and the quarterly peak-shifting indexes of n cities respectively; P 全省奖动总 The sum of the rewards for network supply indicators obtained by various cities; P n奖励 It is the reward obtained by city n after actively taking measures to enhance the peak power generation capacity of thermal power plants within its jurisdiction, ensuring that key power sources are put into operation ahead of schedule or on schedule, and actively cultivating demand response resources. It is a fixed value within days.

9. An electronic device, characterized in that: The method comprises a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor, wherein the processor implements the power load control method as claimed in any one of claims 1 to 4 when executing the computer program.

10. A storage medium, characterized in that: The storage medium includes a stored computer program, wherein when the computer program is executed, the device where the storage medium is located is controlled to execute the power load control method according to any one of claims 1 to 4.