Energy scheduling method and system based on provincial energy marking

Abstract

The invention provides an energy scheduling method and system based on provincial energy marking. The method comprises the following steps: constructing an electric power safety model and a pre-electric power deployment model of a plurality of time periods; marking the energy net consumption provincial domain to obtain a first marked node; marking the energy net output provincial domain to obtain a second marked node; marking the energy net consumption provincial domain meeting a third preset requirement by calculating the proportion of a second marking node in the energy net output provincial domain corresponding to the energy net consumption provincial domain to obtain a concerned node; and based on the first marked node, the second marked node and the attention node, evaluating the provincial energy security situation. According to the invention, the problem of poor reliability of trans-provincial power deployment safety supply in the prior art is solved. According to the method, the sufficiency of the provincial-domain energy allocation demand is considered through the reliable data basis and the marking of each provincial-domain energy, the safety of energy allocation is ensured, and the reliability of trans-provincial-domain power allocation is improved.

Description

Technical Field

[0001] The present invention relates to the field of energy dispatching, and in particular to an energy dispatching method and system based on provincial energy marking. Background Art

[0002] Since the supply relationship of electric power resources presents regional characteristics, during the process of cross-provincial power allocation, electricity is affected by natural resources such as wind and light, and the power generation capacity is prone to random fluctuations, which increases the difficulty of cross-provincial power allocation and makes the power demand in different provinces mismatch with power allocation, necessitating additional power allocation.

[0003] At present, traditional power allocation methods mainly adopt the Internet of Things or blockchain. Among them, the Internet of Things mainly generates control strategies to allocate electricity by obtaining the power parameters of the load bus and the current status information of the power equipment of the main power line; the blockchain allocates electricity by setting priorities for individual electricity users, relying on big data to automatically determine whether the electricity demand is met based on the comparison between the electricity generated in the microgrid and the demand electricity; however, the traditional power allocation method lacks an assessment of the security situation of cross-provincial power allocation, and cannot guarantee the safe supply of cross-provincial power allocation, resulting in poor reliability of cross-provincial power allocation. Summary of the invention

[0004] In order to solve the above problems, the present invention proposes an energy dispatching method and system based on provincial energy marking to ensure the safe supply of cross-provincial power allocation.

[0005] To achieve the above object, an embodiment of the present invention provides an energy scheduling method based on provincial energy marking, comprising:

[0006] Based on historical energy dispatch data, build power security models for several time periods;

[0007] Obtaining the peak power consumption corresponding to the province with net energy consumption at the current moment and the peak power output corresponding to the province with net energy output at the current moment, and obtaining a pre-power allocation model based on the power security models of the several time periods;

[0008] Based on the power consumption peak corresponding to the net energy consumption province at the current moment and the pre-power allocation model, marking the net energy consumption province that meets the first preset requirement to obtain a first marked node;

[0009] Based on the power consumption peak corresponding to the energy net consumption province that does not meet the first preset requirement and the pre-power allocation model, marking the energy net output province that meets the second preset requirement to obtain a second marked node;

[0010] By calculating the proportion of the second marked nodes in the energy net output provinces corresponding to the energy net consumption provinces, the energy net consumption provinces that meet the third preset requirements are marked to obtain the focus nodes;

[0011] Based on the first marked node, the second marked node and the concerned node, the provincial energy is scheduled.

[0012] The embodiment of the present invention proposes an energy dispatching method based on provincial energy marking. Based on historical data and data at the current moment, two sets of models are constructed to clarify the actual power peak changes in the net energy consumption province and the net energy output province, so as to provide a reliable data basis for subsequent provincial energy marking; by marking nodes in the net energy consumption province and the net energy output province according to different requirements, the difference between the energy in each province is fully considered, the supply relationship of the energy in each province is clarified, and finally the energy is safely dispatched through the marking of each provincial energy; through a reliable data basis and the marking of each provincial energy, the adequacy of the energy allocation demand in the province is considered, the safety of energy mobilization is guaranteed, and the reliability of cross-provincial power allocation is improved.

[0013] Furthermore, based on the historical energy allocation data, a power security model for several time periods is constructed, specifically:

[0014] Based on historical energy allocation data, obtain the location of the province with net energy output, the location of the province with net energy consumption, the average power consumption of each province in different time periods, the minimum output power peak value and the maximum output power peak value;

[0015] Based on the average power consumption, minimum output power peak and maximum output power peak of each province in different time periods, a standard power dispatch model is constructed;

[0016] Based on the location of the energy net output province, the location of the energy net consumption province and the standard power dispatch model, a power security model for several time periods is constructed.

[0017] Furthermore, the peak power consumption corresponding to the net energy consumption province at the current moment and the peak power output corresponding to the net energy output province at the current moment are obtained, and the pre-power allocation model is obtained based on the power security model of the several time periods, specifically:

[0018] The pre-power allocation model is obtained by substituting the peak power consumption corresponding to the province with net energy consumption at the current moment and the peak power output corresponding to the province with net energy output at the current moment into the standard power allocation model.

[0019] Further, based on the power consumption peak corresponding to the net energy consumption province at the current moment and the pre-power allocation model, the net energy consumption province that meets the first preset requirement is marked to obtain a first marked node, specifically:

[0020] Obtain a first comparison result by comparing the peak power consumption value corresponding to the province of net energy consumption at the current moment with the average power consumption value in the pre-power allocation model;

[0021] Marking the energy net consumption province whose first comparison result meets the first preset requirement as a safe node; wherein the first preset requirement is: the peak power consumption is greater than the average power consumption;

[0022] Marking the energy net consumption province whose first comparison result does not meet the first preset requirement as a node to be marked;

[0023] The first marking node includes: the safety node and the node to be marked.

[0024] Furthermore, based on the power consumption peak corresponding to the energy net consumption province that does not meet the first preset requirement and the pre-power allocation model, the energy net output province that meets the second preset requirement is marked to obtain a second marked node, specifically:

[0025] Based on the pre-power allocation model, the energy net output province associated with the power consumption peak corresponding to the node to be marked is obtained, and the power output peak corresponding to the energy net output province at the current moment is obtained;

[0026] The output power difference is obtained by calculating the difference between the power output peak value corresponding to the province with net energy output at the current moment and the maximum output power peak value in the pre-power allocation model;

[0027] By comparing the output power difference value with a preset critical value, a second comparison result is obtained;

[0028] Marking the energy net output province whose second comparison result meets the second preset requirement as a rated node; wherein the second preset requirement is: the output power difference value is greater than a preset critical value;

[0029] The energy net output provinces whose second comparison results do not meet the second preset requirements are marked as exportable nodes; wherein the second marked nodes include: rated nodes and exportable nodes.

[0030] Furthermore, by calculating the proportion of the second marked nodes in the energy net output province corresponding to the energy net consumption province, the energy net consumption province that meets the third preset requirement is marked to obtain the focus node, which is specifically:

[0031] By calculating the proportion of rated nodes in the net energy output province corresponding to the net energy consumption province, the proportion of rated nodes is obtained;

[0032] The energy net consumption provinces whose rated node proportion values ​​meet the third preset requirement are marked as focus nodes.

[0033] Furthermore, it also includes:

[0034] When the rated node ratio of the net energy consumption province does not meet the third preset requirement, the sum of the minimum output power peaks corresponding to the net energy output provinces associated with the net energy consumption province is calculated;

[0035] By comparing the peak value of power consumption of the net energy consumption province with the added value, a third comparison result is obtained;

[0036] Marking the energy net consumption province whose third comparison result meets the fourth preset requirement as a focus node;

[0037] The energy net consumption province whose third comparison result does not meet the fourth preset requirement is marked as a safe node.

[0038] Furthermore, the scheduling of provincial energy based on the first marked node, the second marked node and the concerned node is specifically as follows:

[0039] Based on the safety nodes, rated nodes, output nodes and focus nodes, the provincial energy security situation is evaluated to obtain a dispatching security situation evaluation result;

[0040] Provincial energy is dispatched based on the dispatch safety situation assessment results.

[0041] Furthermore, it also includes:

[0042] Based on historical energy allocation data, obtain the historical power peak value of the net energy consumption province in the preset time interval;

[0043] Determine the power demand of the net energy consuming province based on the historical power peak of the net energy consuming province in a preset time interval;

[0044] Based on the power demand of the energy net consumption province, the corresponding energy net consumption province is marked to obtain a third marked node;

[0045] Based on the third marking node, the outputtable nodes are classified and marked as abnormal output nodes and normal output nodes.

[0046] An energy scheduling method based on provincial energy marking proposed in an embodiment of the present invention marks abnormal output nodes or normal output nodes to provide warnings for subsequent power regulation processes, so as to facilitate early warning or simulation of power regulation plans, thereby ensuring power safety.

[0047] Furthermore, based on the power demand of the energy net consumption province, the corresponding energy net consumption province is marked to obtain a third marking node, which is specifically:

[0048] When the electricity demand situation of the net energy consumption province is an increase in electricity demand, the corresponding net energy consumption province is marked as an increase node;

[0049] When the electricity demand situation of the net energy consumption province is a decrease in electricity demand, the corresponding net energy consumption province is marked as a descending node, wherein the third marked node includes: an ascending node and a descending node.

[0050] Further, based on the third marking node, the outputtable nodes are classified and marked as abnormal output nodes and normal output nodes, specifically:

[0051] Obtain the number of ascending nodes and descending nodes in the energy net consumption province associated with the output node;

[0052] When the number of ascending nodes in the energy net consumption province associated with the output node is greater than the number of descending nodes, the output node is marked as an abnormal output node;

[0053] When the number of ascending nodes in the energy net consumption province associated with the exportable node is less than the number of descending nodes, the exportable node is marked as a normal output node.

[0054] Further, based on the historical energy allocation data, the historical output power peak value of the output node in the preset time interval is obtained;

[0055] Determine the power output of each output node based on the historical power output peak of the output node in the preset time interval;

[0056] Based on the power output of each output node, the corresponding output node is marked to obtain a fourth marked node;

[0057] Based on the fourth marking node, the marking of the energy net consumption province is updated.

[0058] An energy dispatching method based on provincial energy marking proposed in an embodiment of the present invention updates markings through power output markings of energy net output provinces to reduce false alarms of abnormal output nodes.

[0059] Furthermore, based on the power output of each output node, the corresponding output node is marked to obtain a fourth marked node, which is specifically:

[0060] When the power output of the output node increases, the corresponding output node is marked as an expansion node;

[0061] When the power output of the output node decreases, the corresponding output node is marked as a reduced node; wherein the fourth marked node includes: an expanded node and a reduced node.

[0062] An energy scheduling method based on provincial energy marking is proposed in an embodiment of the present invention. At the same time, by expanding or reducing the marking of nodes, a reference direction and warning for power control are provided for the subsequent power control process, so as to facilitate early warning or simulation of power control plans, thereby ensuring power safety.

[0063] Furthermore, based on the fourth marking node, the marking of the energy net consumption province is updated, specifically:

[0064] Get the total number of nodes in the energy net output province associated with the energy net consumption province marked as the rising node;

[0065] Calculate the ratio of the expanded nodes to the total number of nodes to obtain the output ratio;

[0066] When the output ratio is greater than the preset threshold, the mark of the energy net consumption province is updated to a normal node;

[0067] When the output ratio is less than the preset threshold, the mark of the energy net consumption province is updated to a rising node.

[0068] The embodiment of the present invention also provides an energy dispatching system based on provincial energy marking, comprising: a first model building module, a second model building module, a first node marking module, a second node marking module, a third node marking module and an energy dispatching module;

[0069] The first model building module is used to build a power security model for several time periods based on historical energy deployment data;

[0070] The second model building module is used to obtain the power consumption peak corresponding to the current energy net consumption province and the power output peak corresponding to the current energy net output province, and obtain the pre-power allocation model based on the power security model of the several time periods;

[0071] The first node marking module is used to mark the energy net consumption province that meets the first preset requirement based on the power consumption peak corresponding to the energy net consumption province at the current moment and the pre-power allocation model to obtain a first marked node;

[0072] The second node marking module is used to mark the energy net output province that meets the second preset requirement based on the power consumption peak corresponding to the energy net consumption province that does not meet the first preset requirement and the pre-power allocation model to obtain a second marked node;

[0073] The third node marking module is used to mark the energy net consumption provinces that meet the third preset requirements by calculating the proportion of the second marked nodes in the energy net output provinces corresponding to the energy net consumption provinces to obtain the nodes of interest;

[0074] The energy scheduling module is used to schedule provincial energy based on the first marked node, the second marked node and the concerned node.

[0075] The embodiment of the present invention proposes an energy dispatching system based on provincial energy marking, which constructs two sets of models based on historical data and data at the current moment through a first model building module and a second model building module, clarifies the actual power peak changes in the energy net consumption province and the energy net output province, and provides a reliable data basis for subsequent provincial energy marking; through a first node marking module, a second node marking module and a third node marking module, nodes are marked on the energy net consumption province and the energy net output province according to different requirements, and the difference between the energy of each province is fully considered, and the supply relationship of the energy of each province is clarified. Finally, the energy dispatching module safely dispatches the energy based on the marking of each provincial energy; through a reliable data basis and the marking of each provincial energy, the adequacy of the energy allocation demand of the province is considered, the safety of energy mobilization is guaranteed, and the reliability of cross-provincial power allocation is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0076] Figure 1 A schematic flow chart of the steps of an energy scheduling method based on provincial energy marking provided in an embodiment of the present invention;

[0077] Figure 2 A schematic diagram of a module structure of an energy dispatching system based on provincial energy marking provided in an embodiment of the present invention;

[0078] Figure 3 A schematic diagram of a pre-power dispatch model of an energy dispatch method based on provincial energy marking provided in accordance with an embodiment of the present invention. DETAILED DESCRIPTION

[0079] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0080] Example 1

[0081] See also Figure 1 , Figure 1A schematic flow chart of a method for energy scheduling based on provincial energy marking is provided in accordance with an embodiment of the present invention. Figure 1 As shown, the embodiment of the present invention proposes an energy scheduling method based on provincial energy marking, including steps 101 to 106, each of which is specifically as follows:

[0082] Step 101, constructing a power security model for several time periods based on historical energy allocation data;

[0083] As an example of this embodiment, based on historical energy allocation data, the location of the energy net output province, the location of the energy net consumption province, the average power consumption, the minimum output power peak and the maximum output power peak of each provincial node in different time periods are obtained; based on the average power consumption, the minimum output power peak and the maximum output power peak of each province in different time periods, a standard power allocation model is constructed; based on the location of the energy net output province, the location of the energy net consumption province and the standard power allocation model, a power security model for several time periods is constructed. A specific implementation method is to obtain historical energy allocation data based on the existing method, establish a basic power security model for different time periods, and the basic power security model includes: the location of the energy net output province, the location of the energy net consumption province and the standard power model, and the standard power model includes: the average power consumption, the minimum output power peak and the maximum output power peak of each province in different time periods. The above data are all stored in the corresponding model. When the model is called, the corresponding data type is output according to the target data requirement.

[0084] Step 102, obtaining the peak power consumption corresponding to the net energy consumption province at the current moment and the peak power output corresponding to the net energy output province at the current moment, and obtaining a pre-power allocation model based on the power security models of the several time periods;

[0085] As an example of this embodiment, the pre-power allocation model is obtained by substituting the peak power consumption corresponding to the net energy consumption province at the current moment and the peak power output corresponding to the net energy output province at the current moment into the standard power allocation model. Figure 3 , Figure 3 A schematic diagram of a pre-power dispatch model of an energy dispatch method based on provincial energy marking provided in an embodiment of the present invention. Figure 3As shown, after substituting the peak power consumption corresponding to the net energy consumption province at the current moment and the peak power output corresponding to the net energy output province at the current moment into the standard power dispatch model, a pre-power dispatch model is obtained, wherein the data set established by associating the net energy output province and the net energy consumption province in the pre-power dispatch model is saved. Among them, the position of the net energy output province and the position of the net energy consumption province in the pre-power dispatch model are displayed in different colors, and marked and displayed based on the energy type corresponding to the net energy output province in the historical data; at the same time, they will be sorted according to the size of the peak power consumption of the net energy output province or the size of the output power peak of the net energy consumption province in the historical data, and the color of the net energy output province or the net energy consumption province will be gradually deepened in order from small to large. For example, different colors are used to distinguish and identify provinces with net energy output or net energy consumption, and gradient colors are used to distinguish the power demand or power supply of provinces with net energy output or net energy consumption, and the energy type is determined to understand the changes in power output peak according to the laws of natural resources in different time periods, making subsequent allocation plans more accurate. This makes it easier to view in the pre-power allocation model, so as to facilitate early warning or simulation of power control plans, thereby ensuring power safety; a more specific explanation, Figure 3 In the figure, the orange-red dotted line is the core area of ​​energy demand in a certain region or province, the orange line is the important area of ​​energy demand in a certain region or province, the purple line is the secondary area of ​​energy demand in a certain region or province, the blue line is the auxiliary area of ​​energy demand in a certain region or province, and the green line is the area of ​​energy demand concern in a certain region or province. Based on the different areas to which various marked nodes belong, different preset requirements are assigned to them so that energy scheduling can meet the needs of different types of energy demand areas.

[0086] Step 103, based on the power consumption peak corresponding to the net energy consumption province at the current moment and the pre-power allocation model, mark the net energy consumption province that meets the first preset requirement to obtain a first marked node;

[0087] As an example of this embodiment, a first comparison result is obtained by comparing the peak power consumption corresponding to the net energy consumption province at the current moment with the average power consumption in the pre-power allocation model; the net energy consumption province whose first comparison result meets the first preset requirement is marked as a safe node; wherein the first preset requirement is: the peak power consumption is greater than the average power consumption; the net energy consumption province whose first comparison result does not meet the first preset requirement is marked as a node to be marked; wherein the first marked node includes: the safe node and the node to be marked.

[0088] Step 104, based on the power consumption peak corresponding to the energy net consumption province that does not meet the first preset requirement and the pre-power allocation model, mark the energy net output province that meets the second preset requirement to obtain a second marked node;

[0089] As an example of this embodiment, based on the pre-power allocation model, the energy net output province associated with the power consumption peak corresponding to the node to be marked is obtained, and the power output peak corresponding to the energy net output province at the current moment is obtained; the output power difference value is obtained by calculating the difference between the power output peak corresponding to the energy net output province at the current moment and the maximum output power peak in the pre-power allocation model; the output power difference value is compared with the preset critical value to obtain a second comparison result; the energy net output province whose second comparison result meets the second preset requirement is marked as a rated node; wherein the second preset requirement is: the output power difference value is greater than the preset critical value; the energy net output province whose second comparison result does not meet the second preset requirement is marked as an output node; wherein the second marked node includes: a rated node and an output node. A specific implementation method is to sort the net energy consumption provinces according to the size of their peak power consumption, and obtain the net energy output provinces associated with the pre-power allocation model; at the same time, calculate the difference between the power output peak and the maximum output power peak in the net energy output province, and compare the difference with the set critical value. When the difference is greater than the critical value, the net energy output province is marked as a rated node; when the difference is less than the critical value, the net energy output province is marked as an output node; at the same time, the pre-power allocation model can also be modified based on the rated node and the output node. For example, by comparing the difference corresponding to the net energy output province with the set critical value, it is easy to determine whether the net energy output province at the current time has additional allocation quotas to meet the additional supply of increased electricity demand in the net energy consumption province, thereby ensuring the safe supply of provincial power allocation. By marking the net energy output provinces as rated nodes and exportable nodes, in the subsequent energy allocation process, the marking of rated nodes and exportable nodes provides basic data references, so as to facilitate the assessment of the provincial energy security situation and provide a basis for establishing a suitable energy allocation plan. Their calculation formulas are as follows:

[0090] Output power difference:

[0091]

[0092] The difference between the power peaks is:

[0093]

[0094] In the formula, is the output power difference, is the electricity output value corresponding to the province i with net energy output at time t, is the maximum output power peak of province i in the power dispatch model at time t, is the phase difference between the power peaks, represents the electricity output value in province i with net energy output, Represents the maximum output power value in province i with net energy output.

[0095] Step 105, by calculating the proportion of the second marked nodes in the energy net output provinces corresponding to the energy net consumption provinces, the energy net consumption provinces that meet the third preset requirements are marked to obtain the nodes of interest;

[0096] As an example of this embodiment, by calculating the proportion of rated nodes in the energy net output province corresponding to the energy net consumption province, the rated node proportion value is obtained; the calculation method of the proportion of the second marked node and the rated node proportion is as follows:

[0097] The proportion of the second marked nodes:

[0098]

[0099] Rated node ratio:

[0100]

[0101] In the above formula, N is the total number of nodes in a certain area, D Tag2 is the total number of second marker sections, Indicates when When , the result of the formula is 1, otherwise it is 0. att is the rated node ratio.

[0102] The energy net consumption province whose rated node ratio meets the third preset requirement is marked as a node of concern. When the rated node ratio of the energy net consumption province does not meet the third preset requirement, the added value between the minimum output power peaks corresponding to the energy net output province associated with the energy net consumption province is calculated; the third comparison result is obtained by comparing the power consumption peak of the energy net consumption province with the added value; the energy net consumption province whose third comparison result meets the fourth preset requirement is marked as a node of concern; the energy net consumption province whose third comparison result does not meet the fourth preset requirement is marked as a safe node. One possible implementation method is to calculate the proportion of rated nodes in the net energy output province associated with the net energy consumption province. When the proportion is greater than 50% (equivalent to the third preset requirement), the net energy consumption province is marked as a focus node; when the proportion is less than 50%, the added value between the minimum output power peaks corresponding to the net energy output provinces associated with the net energy consumption province is calculated, and the added value is compared with the actual power peak. When the added value is less than the actual power peak (equivalent to the fourth preset requirement), the net energy consumption province is marked as a focus node, and when the added value is greater than the actual power peak, the net energy consumption province is marked as a safety node. For example, in the process of evaluating the provincial energy security situation, the proportion of rated nodes in the net energy output province associated with the net energy consumption province indicates whether the corresponding net energy output province is in a state of sufficient supply, which provides a basic reference for adapting to the sudden demand of the net energy consumption province. By marking the net energy consumption province as a focus node or a safety node, a preliminary assessment of the provincial energy security situation is conducted to facilitate the subsequent determination of the focus of provincial power allocation, so as to ensure the safe supply of power allocation within the province.

[0103] As another example of this embodiment, based on historical energy allocation data, the historical power peak value of the net energy consumption province in the preset time interval is obtained; based on the historical power peak value of the net energy consumption province in the preset time interval, the power demand situation of the net energy consumption province is determined; based on the power demand situation of the net energy consumption province, the corresponding net energy consumption province is marked to obtain a third marked node; based on the third marked node, the outputtable nodes are classified and marked as abnormal output nodes and normal output nodes. Specifically, when the power demand situation of the net energy consumption province is an increase in power demand, the corresponding net energy consumption province is marked as an increase node; when the power demand situation of the net energy consumption province is a decrease in power demand, the corresponding net energy consumption province is marked as a decrease node, wherein the third marked node includes: an increase node and a decrease node. Obtain the number of increase nodes and decrease nodes in the net energy consumption province associated with the outputtable node; the calculation method is:

[0104] Rising node calculation method:

[0105]

[0106] Descending node calculation method:

[0107]

[0108] In the above formula, UP Tagi 、DOWN Tagi They are respectively represented as the number of ascending nodes and descending nodes associated with province i and, is the electricity demand of province l associated with province i at time t-1.

[0109] When the number of ascending nodes in the energy net consumption province associated with the output node is greater than the number of descending nodes, the output node is marked as an abnormal output node; when the number of ascending nodes in the energy net consumption province associated with the output node is less than the number of descending nodes, the output node is marked as a normal output node. An operative interpretation is as follows: Figure 3 As shown, the association between the net energy consumption province and the net energy output province can also be displayed with a dotted line. The net energy output province and the net energy consumption province are associated with the number of ascending nodes or descending nodes to obtain in advance whether the power output of the net energy output province is normal, and mark the abnormal output node or the normal output node to warn the subsequent power regulation process, so as to facilitate early warning or simulation of the power regulation plan, thereby ensuring power safety.

[0110] As another example of this embodiment, based on the historical energy allocation data, the historical output power peak value of the output node in the preset time interval is obtained; based on the historical output power peak value of the output node in the preset time interval, the power output of each output node is determined; based on the power output of each output node, the corresponding output node is marked to obtain a fourth marked node; based on the fourth marked node, the mark of the energy net consumption province is updated. Specifically, when the power output of the output node increases, the corresponding output node is marked as an expansion node; when the power output of the output node decreases, the corresponding output node is marked as a reduction node; wherein the fourth marked node includes: an expansion node and a reduction node. The total number of nodes in the energy net output province associated with the energy net consumption province marked as an ascending node is obtained; the proportion of the enlarged node to the total number of nodes is calculated to obtain the output ratio; when the output ratio is greater than the preset threshold, the mark of the energy net consumption province is updated to a normal node; when the output ratio is less than the preset threshold, the mark of the energy net consumption province is updated to an ascending node.

[0111] One feasible explanation is to obtain the total number of nodes in the energy net output province associated with the energy net consumption province marked as the rising node, and calculate the output ratio of the expanded node to the total number of nodes. The calculation method is:

[0112] Expand the node ratio:

[0113]

[0114] In the above formula, Zoom Tag Expressed as the ratio of the number of expanded nodes, N att The set of output nodes is nodes; is the electricity output value corresponding to the province k with net energy output at time t, It is the electricity output value corresponding to the province k with net energy output at time t-1.

[0115] When the output ratio is greater than 50%, the mark of the net energy consumption province is updated to a normal node, and when the output ratio is less than 50%, the mark of the net energy consumption province is updated to an ascending node. When the power demand situation of the net energy consumption province changes, the net energy consumption province is marked as a descending node or an expanding node to provide an early warning for the subsequent power regulation process, and to reserve time for early warning or simulation of the power regulation plan. The relationship between the net energy consumption province and the net energy output province is displayed as a dotted line, which provides a basic reference in the subsequent power allocation process, thereby providing a basic data reference for ensuring power safety.

[0116] As another example of this embodiment, in the pre-electricity dispatch model, an expected energy supply relationship is established through the energy net consumption province corresponding to the same energy net output province after the current time period in the historical data, and the expected energy supply relationship is marked in the data set; the positions of the different corresponding energy net output provinces and energy net consumption provinces in the expected energy supply relationships in different data sets are obtained, the transmission distance between the positions of the energy net output province and the energy net consumption province is calculated, and the transmission distance is compared with the set maximum transmission limit. When the transmission distance is greater than the maximum transmission limit, the corresponding expected energy supply relationship in the data set is marked with a distance warning. Note that when the transmission distance is less than the maximum transmission limit, the expected energy supply relationship corresponding to the data set is marked as normal distance; then the expected energy supply relationship corresponding to the distance warning mark or the distance normal mark in the data set is retrieved, and the transmission distances marked as normal distance in the expected energy supply relationship are sorted in descending order to obtain the normal distance mark with the smallest sorting. When the province of net energy consumption is a descending node, the expected energy supply relationship marked as normal distance is marked as an adjustable mark. When the province of net energy consumption is not a descending node, the expected energy supply relationship marked as a distance warning mark is changed to a priority processing mark. In the energy supply relationship, the increase in transmission distance will aggravate the increase in cost and power loss, so the transmission distance needs to be controlled. By comparing the transmission distance in the expected energy supply relationship with the maximum transmission limit, an early warning is provided to reduce the transmission distance between provinces with different net energy consumption and net energy output, so as to reduce the transmission loss between provinces with net energy consumption and net energy output, so as to save costs; at the same time, according to the different types of net energy consumption provinces, the expected energy supply relationship is re-marked to facilitate subsequent regulation and control, so as to improve the timeliness of the allocation plan.

[0117] As another example of this embodiment, the position of the energy net output province and the position of the energy net consumption province in the pre-power allocation model are displayed in different colors. When the position of the energy net output province and the position of the energy net consumption province in the pre-power allocation model are displayed in different colors, they will also be sorted according to the size of the actual power peak of the energy net output province in the historical data or the size of the output power peak of the energy net consumption province, and the color of the energy net output province or the energy net consumption province will be gradually deepened in order from small to large. When the position of the energy net output province and the position of the energy net consumption province in the pre-power allocation model are displayed in different colors, they will also be marked and displayed based on the energy type corresponding to the energy net output province in the historical data. Specifically explained as: displaying by different colors, so as to distinguish and identify the energy net output province or the energy net consumption province, the relationship between the energy net consumption province and the energy net output province is displayed with a dotted line, so as to facilitate energy allocation according to the dotted line. Gradual color changes can be used to determine the amount of electricity demand or power supply in a province with net energy output or net energy consumption, so as to provide early warning or simulation of power regulation plans to ensure power security. By determining the energy type, it is easy to understand the changes in power output peaks according to the laws of natural resources in different time periods, making subsequent allocation plans more accurate.

[0118] Step 106, based on the first marked node, the second marked node and the concerned node, the provincial energy security situation is evaluated to achieve provincial energy scheduling.

[0119] As an example of this embodiment, based on the safety nodes, rated nodes, output nodes and attention nodes, the provincial energy security situation is evaluated to obtain the scheduling security situation evaluation result; based on the scheduling security situation evaluation result, the provincial energy is scheduled. A specific explanation is that every time the net energy consumption province and the net energy output province are marked, according to the overall marking, including but not limited to: safety nodes, rated nodes, output nodes and attention nodes, the global energy allocation is assisted in planning and scheduling security situation evaluation, the energy allocation strategy and scheduling security situation evaluation result are obtained, and the provincial energy is scheduled based on the energy allocation strategy and scheduling security situation evaluation result.

[0120] As another example of this embodiment, after marking the net energy consumption province and the net energy output province, various marked situations of the net energy consumption province and the net energy output province are recorded, and the marked types include: safe nodes, rated nodes, output nodes and focus nodes. The marked situations include being marked as the frequency of occurrence of various marks, the time of occurrence of various marks, the frequency of update of various marks and the time of update of various marks, and the like, and synchronously record various marks at different occurrence frequencies, different occurrence times, different update frequencies and different update times, and obtain the energy allocation defects caused by the net energy consumption province and the net energy output province; based on the energy allocation defects caused by the net energy consumption province and the net energy output province, obtain the time of occurrence of various marks, the frequency of update of various marks and the time of update of various marks for the net energy consumption province and the net energy output province The impact of the net energy consumption province and the net energy output province is calculated, and weights are assigned to the frequency of occurrence of various tags, the time of occurrence of various tags, the frequency of update of various tags and the time of update of various tags based on the impact, and an energy scheduling prediction model is established. The frequency of occurrence of various tags, the time of occurrence of various tags, the frequency of update of various tags and the time of update of various tags in the net energy consumption province and the net energy output province are obtained in real time through the energy scheduling prediction model, and the type and time of various tags appearing in the net energy consumption province and the net energy output province in the future time period are predicted. Based on the predicted type and time of various tags appearing in the net energy consumption province and the net energy output province in the future time period, provincial resources are dispatched in advance to avoid the occurrence of type tags that cause energy allocation defects in the net energy consumption province and the net energy output province at the time when they cause energy allocation defects.

[0121] The embodiment of the present invention proposes an energy dispatching method based on provincial energy marking. Based on historical data and data at the current moment, two sets of models are constructed to clarify the actual power peak changes in the province with net energy consumption and the province with net energy output, so as to provide a reliable data basis for subsequent provincial energy marking; by marking nodes in the province with net energy consumption and the province with net energy output according to different requirements, the difference in provincial energy is fully considered, the supply relationship of provincial energy is clarified, and finally the energy is safely dispatched through the marking of provincial energy; through a reliable data basis and the marking of each provincial energy, the adequacy of the energy allocation demand in the province is considered, the safety of energy mobilization is guaranteed, and the reliability of cross-provincial power allocation is improved; abnormal output nodes or normal output nodes are also marked to warn for the subsequent power regulation process, so as to facilitate early warning or simulation of power regulation schemes, thereby ensuring power safety; and the power output mark of the net energy output province is also updated to reduce erroneous warnings of abnormal output nodes. At the same time, by expanding or reducing the node marks, a reference direction and warning for the subsequent power control process is provided, so as to facilitate early warning or simulation of power control plans, thereby ensuring power safety.

[0122] Example 2

[0123] See also Figure 2 , Figure 2 A schematic diagram of a module structure of an energy dispatching system based on provincial energy marking is provided for an embodiment of the present invention. Figure 2 As shown, the embodiment of the present invention proposes an energy dispatching system based on provincial energy marking, including: a first model building module 201, a second model building module 202, a first node marking module 203, a second node marking module 204, a third node marking module 205 and an energy dispatching module 206;

[0124] The first model building module 201 is used to build a power security model for several time periods based on historical energy deployment data;

[0125] The second model building module 202 is used to obtain the power consumption peak corresponding to the current energy net consumption province and the power output peak corresponding to the current energy net output province, and obtain the pre-power allocation model based on the power security model of the several time periods;

[0126] The first node marking module 203 is used to mark the energy net consumption province that meets the first preset requirement based on the power consumption peak corresponding to the energy net consumption province at the current moment and the pre-power allocation model to obtain a first marked node;

[0127] The second node marking module 204 is used to mark the energy net output province that meets the second preset requirement based on the power consumption peak corresponding to the energy net consumption province that does not meet the first preset requirement and the pre-power allocation model to obtain a second marked node;

[0128] The third node marking module 205 is used to mark the energy net consumption provinces that meet the third preset requirements by calculating the proportion of the second marked nodes in the energy net output provinces corresponding to the energy net consumption provinces to obtain the nodes of interest;

[0129] The energy scheduling module 206 is used to evaluate the provincial energy security situation based on the first marked node, the second marked node and the concerned node to achieve provincial energy scheduling.

[0130] The embodiment of the present invention proposes an energy dispatching system based on provincial energy marking, which constructs two sets of models based on historical data and data at the current moment through a first model building module and a second model building module, clarifies the actual power peak changes in the energy net consumption province and the energy net output province, and provides a reliable data basis for subsequent provincial energy marking; through a first node marking module, a second node marking module and a third node marking module, nodes are marked on the energy net consumption province and the energy net output province according to different requirements, and the difference between the energy of each province is fully considered, and the supply relationship of the energy of each province is clarified. Finally, the energy dispatching module safely dispatches the energy based on the marking of each provincial energy; through a reliable data basis and the marking of each provincial energy, the adequacy of the energy allocation demand of the province is considered, the safety of energy mobilization is guaranteed, and the reliability of cross-provincial power allocation is improved.

[0131] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

[0132] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples, unless they are contradictory.

[0133] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

Claims

1. An energy dispatching method based on provincial energy marking, characterized in that: include: Based on historical energy dispatch data, build power security models for several time periods; Obtaining the peak power consumption corresponding to the province with net energy consumption at the current moment and the peak power output corresponding to the province with net energy output at the current moment, and obtaining a pre-power allocation model based on the power security models of the several time periods; Based on the power consumption peak corresponding to the net energy consumption province at the current moment and the pre-power allocation model, marking the net energy consumption province that meets the first preset requirement to obtain a first marked node; Based on the power consumption peak corresponding to the energy net consumption province that does not meet the first preset requirement and the pre-power allocation model, marking the energy net output province that meets the second preset requirement to obtain a second marked node; By calculating the proportion of the second marked nodes in the energy net output provinces corresponding to the energy net consumption provinces, the energy net consumption provinces that meet the third preset requirements are marked to obtain the focus nodes; Based on the first marked node, the second marked node and the focus node, the provincial energy security situation is evaluated to achieve provincial energy scheduling.

2. The energy dispatching method based on provincial energy marking according to claim 1, characterized in that: The power security model for several time periods is constructed based on historical energy allocation data, specifically: Based on historical energy allocation data, obtain the location of the province with net energy output, the location of the province with net energy consumption, the average power consumption of each province in different time periods, the minimum output power peak value and the maximum output power peak value; Based on the average power consumption, minimum output power peak and maximum output power peak of each province in different time periods, a standard power dispatch model is constructed; Based on the location of the energy net output province, the location of the energy net consumption province and the standard power dispatch model, a power security model for several time periods is constructed.

3. The energy dispatching method based on provincial energy marking according to claim 2, characterized in that: The power consumption peak corresponding to the net energy consumption province at the current moment and the power output peak corresponding to the net energy output province at the current moment are obtained, and the pre-power allocation model is obtained based on the power security model of the several time periods, specifically: The pre-power allocation model is obtained by substituting the peak power consumption corresponding to the province with net energy consumption at the current moment and the peak power output corresponding to the province with net energy output at the current moment into the standard power allocation model.

4. The energy dispatching method based on provincial energy marking according to claim 3, characterized in that: Based on the power consumption peak corresponding to the net energy consumption province at the current moment and the pre-power allocation model, the net energy consumption province that meets the first preset requirement is marked to obtain a first marked node, specifically: Obtain a first comparison result by comparing the peak power consumption value corresponding to the province of net energy consumption at the current moment with the average power consumption value in the pre-power allocation model; The net energy consumption province whose first comparison result meets the first preset requirement is marked as a safe node; wherein the first preset requirement is that the peak power consumption in the power allocation model is greater than the average power consumption of the net energy consumption province; Marking the energy net consumption province whose first comparison result does not meet the first preset requirement as a node to be marked; The first marking node includes: the safety node and the node to be marked.

5. The energy dispatching method based on provincial energy marking according to claim 4, characterized in that: Based on the power consumption peak corresponding to the energy net consumption province that does not meet the first preset requirement and the pre-power allocation model, the energy net output province that meets the second preset requirement is marked to obtain a second marked node, specifically: Based on the pre-power allocation model, the energy net output province associated with the power consumption peak corresponding to the node to be marked is obtained, and the power output peak corresponding to the energy net output province at the current moment is obtained; The output power difference is obtained by calculating the difference between the power output peak value corresponding to the province with net energy output at the current moment and the maximum output power peak value in the pre-power allocation model; By comparing the output power difference value with a preset critical value, a second comparison result is obtained; Marking the energy net output province whose second comparison result meets the second preset requirement as a rated node; wherein the second preset requirement is: the output power difference value is greater than a preset critical value; The energy net output provinces whose second comparison results do not meet the second preset requirements are marked as exportable nodes; wherein the second marked nodes include: rated nodes and exportable nodes.

6. The energy dispatching method based on provincial energy marking according to claim 5, characterized in that: By calculating the proportion of the second marked nodes in the energy net output province corresponding to the energy net consumption province, the energy net consumption province that meets the third preset requirement is marked to obtain the focus node, and the third preset requirement is: the rated node proportion value is greater than the preset critical value; specifically: By calculating the proportion of rated nodes in the net energy output province corresponding to the net energy consumption province, the proportion of rated nodes is obtained; The energy net consumption provinces whose rated node proportion values ​​meet the third preset requirement are marked as focus nodes.

7. The energy dispatching method based on provincial energy marking according to claim 6, characterized in that: Also includes: When the rated node ratio of the net energy consumption province does not meet the third preset requirement, the difference between the maximum output power peaks corresponding to the net energy output province associated with the net energy consumption province is calculated; By comparing the peak power consumption of the energy net consumption province with the maximum output power peak, a third comparison result is obtained; Marking the energy net consumption province whose third comparison result meets the fourth preset requirement as a focus node; The energy net consumption province whose third comparison result does not meet the fourth preset requirement is marked as a safe node.

8. The energy dispatching method based on provincial energy marking according to claim 7, characterized in that: Based on the first marked node, the second marked node and the concerned node, the provincial energy security situation is evaluated to achieve provincial energy dispatch, specifically: Based on the safety nodes, rated nodes, output nodes and focus nodes, the provincial energy security situation is evaluated to obtain a dispatching security situation evaluation result; Provincial energy is dispatched based on the dispatch safety situation assessment results.

9. An energy dispatching method based on provincial energy marking according to any one of claims 5 to 8, characterized in that: Also includes: Based on historical energy allocation data, obtain the historical power peak value of the net energy consumption province in the preset time interval; Determine the power demand of the net energy consuming province based on the historical power peak of the net energy consuming province in a preset time interval; Based on the power demand of the energy net consumption province, the corresponding energy net consumption province is marked to obtain a third marked node; Based on the third marking node, the outputtable nodes are classified and marked as abnormal output nodes and normal output nodes.

10. The energy dispatching method based on provincial energy marking according to claim 9, characterized in that: Based on the electricity demand of the net energy consumption province, the corresponding net energy consumption province is marked to obtain a third marking node, which is specifically: When the electricity demand situation of the net energy consumption province is an increase in electricity demand, the corresponding net energy consumption province is marked as an increase node; When the electricity demand situation of the net energy consumption province is a decrease in electricity demand, the corresponding net energy consumption province is marked as a descending node, wherein the third marked node includes: an ascending node and a descending node.

11. The energy dispatching method based on provincial energy marking according to claim 10, characterized in that: Based on the third marking node, the output nodes are classified and marked as abnormal output nodes and normal output nodes, specifically: Obtain the number of ascending nodes and descending nodes in the energy net consumption province associated with the output node; When the number of ascending nodes in the energy net consumption province associated with the output node is greater than the number of descending nodes, the output node is marked as an abnormal output node; When the number of ascending nodes in the energy net consumption province associated with the exportable node is less than the number of descending nodes, the exportable node is marked as a normal output node.

12. The energy dispatching method based on provincial energy marking according to claim 11, characterized in that: Also includes: Based on the historical energy allocation data, obtain the historical output power peak value of the output node in the preset time interval; Determine the power output of each output node based on the historical power output peak of the output node in the preset time interval; Based on the power output of each output node, the corresponding output node is marked to obtain a fourth marked node; Based on the fourth marking node, the marking of the energy net consumption province is updated.

13. The energy dispatching method based on provincial energy marking according to claim 12, characterized in that: Based on the power output of each output node, the corresponding output node is marked to obtain a fourth marked node, which is specifically: When the power output of the output node increases, the corresponding output node is marked as an expansion node; When the power output of the output node decreases, the corresponding output node is marked as a shrinking node; wherein the fourth marked node includes: an expanding node and a shrinking node.

14. The energy dispatching method based on provincial energy marking according to claim 13, characterized in that: The updating of the mark of the energy net consumption province based on the fourth mark node is specifically as follows: Get the total number of nodes in the energy net output province associated with the energy net consumption province marked as the rising node; Calculate the ratio of the expanded nodes to the total number of nodes to obtain the output ratio; When the output ratio is greater than the preset threshold, the mark of the energy net consumption province is updated to a normal node; When the output ratio is less than the preset threshold, the mark of the energy net consumption province is updated to a rising node.

15. An energy dispatching system based on provincial energy marking, characterized in that: Executing an energy scheduling method based on provincial energy marking as claimed in any one of claims 1 to 14, comprising: A first model building module, a second model building module, a first node marking module, a second node marking module, a third node marking module and an energy scheduling module; The first model building module is used to build a power security model for several time periods based on historical energy deployment data; The second model building module is used to obtain the power consumption peak corresponding to the current energy net consumption province and the power output peak corresponding to the current energy net output province, and obtain the pre-power allocation model based on the power security model of the several time periods; The first node marking module is used to mark the energy net consumption province that meets the first preset requirement based on the power consumption peak corresponding to the energy net consumption province at the current moment and the pre-power allocation model to obtain a first marked node; The second node marking module is used to mark the energy net output province that meets the second preset requirement based on the power consumption peak corresponding to the energy net consumption province that does not meet the first preset requirement and the pre-power allocation model to obtain a second marked node; The third node marking module is used to mark the energy net consumption provinces that meet the third preset requirements by calculating the proportion of the second marked nodes in the energy net output provinces corresponding to the energy net consumption provinces to obtain the nodes of interest; The energy scheduling module is used to evaluate the provincial energy security situation based on the first marked node, the second marked node and the focus node to achieve provincial energy scheduling.

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