Energy loss calculation method and device

Abstract

The present invention belongs to the field of Internet of Things technology and discloses a method and device for calculating energy loss, comprising: obtaining a first energy network structure diagram for a region to be calculated; standardizing the first energy network structure diagram to obtain a second energy network structure diagram; and calculating the energy loss for the region to be calculated based on the second energy network structure diagram and a preset loss calculation formula. Beneficial Effect: By standardizing the obtained first energy network structure diagram, a clear hierarchical relationship can be established between the master table and the end-user table in the region to be calculated, facilitating energy loss calculation.

Description

Technical Field

[0001] The present invention relates to the technical field of Internet of Things, and in particular to an energy loss calculation method and device. Background Art

[0002] With the development of smart park technology, commercial buildings such as office buildings, shopping malls, apartments, and industrial parks have gradually introduced energy monitoring systems to realize automatic collection and real-time monitoring of data from terminal metering instruments such as electricity meters and water meters.

[0003] During the transmission of energy sources like electricity, water, and natural gas, line losses are inevitable. Due to the complexity of park energy systems, most current energy monitoring systems struggle to accurately calculate energy losses between the low-voltage distribution center of the operating management unit and end users. Summary of the Invention

[0004] The purpose of the present invention is to provide an energy loss calculation method, device and management system, which accurately calculates the energy loss value on each line from the low-voltage distribution side of the operation and management unit to the energy terminal node by processing the hierarchical relationship between each energy-consuming node.

[0005] To achieve the above object, the present invention provides an energy loss calculation method, comprising:

[0006] Obtaining a first energy network structure diagram of the area to be calculated;

[0007] Standardizing the first energy network structure diagram to obtain a second energy network structure diagram;

[0008] The energy loss of the area to be calculated is obtained according to the second energy network structure diagram and a preset loss calculation formula.

[0009] Furthermore, the obtaining of the first energy network structure diagram of the area to be calculated is specifically as follows:

[0010] Obtain the physical energy network information and number of layers in the area to be calculated;

[0011] A first energy network structure diagram is obtained according to the number of levels of the area to be calculated and the physical energy network information.

[0012] Furthermore, the physical energy network information includes: an energy supply summary table, summary tables of several different management levels and a terminal user table; several management levels are set between the energy supply summary table and the terminal user, and each management level is set with several summary tables of this level; the energy supply summary table, summary tables of different management levels and the terminal user table each correspond to one level, and the first energy network structure diagram includes the same number of levels as the level, and the terminal user is connected to the energy supply summary table according to the subordinate relationship between the summary tables of several different management levels.

[0013] Furthermore, the first energy network structure diagram is standardized to obtain a second energy network structure diagram, specifically:

[0014] Determine whether there is a complex structure in the first energy network structure diagram. If a complex structure exists, construct a virtual table to simplify the first energy network structure diagram to obtain a second energy network structure diagram; any node at any level in the second energy network structure diagram has only one node at a higher level, and the node is one of the master tables or end-user tables at different management levels.

[0015] Furthermore, the complex structure includes one or more of the following: multiple terminal users share one physical meter, a hierarchical master table includes several physical meter tables, and a node lacks a physical meter table.

[0016] Furthermore, the energy loss of the area to be calculated is obtained according to the second energy network structure diagram and a preset loss calculation formula, specifically:

[0017] According to the second energy network structure diagram and the calculation formula of the total line loss between different levels, the total line loss between different levels is obtained;

[0018] According to the second energy network structure diagram, the total line loss and the calculation formula of the arbitrary node loss value, the arbitrary node loss value is obtained;

[0019] The calculation formula for the total line loss between different layers is as follows:

[0020]

[0021] Among them, x is the parent level of y, and the total line loss value (x-y) Refers to the total line loss value between the x-level table and the y-level table, the table code usage value x_i Refers to the difference in meter readings of the meter or virtual meter at the i-th node of the x-level within a given time range; meter code usage value y_j It refers to the difference in meter readings of the meter or virtual meter at the jth node in level y within a given time range; m and n represent the number of meters at levels x and y, respectively;

[0022] The specific calculation formula for the loss value of any node is:

[0023] Loss value x_i =Total line loss (1-x) × Loss coefficient x_i

[0024] Among them, the loss value x_i Indicates the loss value of the i-th node at level x and the total line loss value (1-x) The total line loss between level 1 meter and level x meter, loss coefficient x_i The calculation formula is as follows:

[0025]

[0026] The present invention also discloses an energy loss calculation device, comprising: an acquisition module, a standardization module and a loss calculation module;

[0027] The acquisition module is used to acquire a first energy network structure diagram of the area to be calculated;

[0028] The standardization module is used to standardize the first energy network structure diagram to obtain a second energy network structure diagram;

[0029] The loss calculation module is used to obtain the energy loss of the area to be calculated based on the second energy network structure diagram and a preset loss calculation formula.

[0030] Furthermore, the obtaining of the first energy network structure diagram of the area to be calculated is specifically as follows:

[0031] Obtain the physical energy network information and number of layers in the area to be calculated;

[0032] A first energy network structure diagram is obtained according to the number of levels of the area to be calculated and the physical energy network information.

[0033] Furthermore, the physical energy network information includes: an energy supply summary table, summary tables of several different management levels and a terminal user table; several management levels are set between the energy supply summary table and the terminal user, and each management level is set with several summary tables of this level; the energy supply summary table, summary tables of different management levels and the terminal user table each correspond to one level; the first energy network structure diagram includes the same number of levels as the number of levels, and the terminal users are connected to the energy supply summary table according to the subordinate relationship between the summary tables of several different management levels.

[0034] Furthermore, the first energy network structure diagram is standardized to obtain a second energy network structure diagram, specifically:

[0035] Determine whether there is a complex structure in the first energy network structure diagram. If a complex structure exists, construct a virtual table to simplify the first energy network structure diagram to obtain a second energy network structure diagram; any node at any level in the second energy network structure diagram has only one node at a higher level, and the node is one of the master tables or end-user tables at different management levels.

[0036] Compared with the prior art, the energy loss calculation method and device of the embodiment of the present invention has the beneficial effect that, by standardizing the obtained first energy network structure diagram, the total table and the terminal user table in the area to be calculated can have a clear hierarchical relationship, which facilitates the calculation of energy loss. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a flow chart of an energy loss calculation method of the present invention;

[0038] Figure 2 It is a standardized energy network structure diagram in an energy loss calculation method of the present invention;

[0039] Figure 3 It is a standardized schematic diagram of a first energy network structure diagram in an energy loss calculation method of the present invention;

[0040] Figure 4 It is a standardized schematic diagram of a method for calculating energy loss in the present invention in which multiple end users share a physical meter;

[0041] Figure 5 It is a standardized schematic diagram of a hierarchical summary table including several entity meters in an energy loss calculation method of the present invention;

[0042] Figure 6 It is a standardized schematic diagram of a node lacking a physical meter in an energy loss calculation method of the present invention;

[0043] Figure 7 It is a structural schematic diagram of an energy loss calculation device of the present invention. DETAILED DESCRIPTION

[0044] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention but are not intended to limit the scope of the present invention.

[0045] Example 1:

[0046] like Figure 1 As shown, the present invention discloses an energy loss calculation method, which is applied to the calculation of energy loss in a certain area, such as a commercial park, a residential area, etc., and mainly includes the following steps:

[0047] Step S1, obtaining a first energy network structure diagram of the area to be calculated;

[0048] Step S2: standardize the first energy network structure diagram to obtain a second energy network structure diagram;

[0049] Step S3: obtaining the energy loss of the area to be calculated according to the second energy network structure diagram and a preset loss calculation formula.

[0050] In step S1, the first energy network structure diagram of the area to be calculated is obtained, specifically:

[0051] Obtain the physical energy network information and number of layers in the area to be calculated;

[0052] A first energy network structure diagram is obtained according to the number of levels of the area to be calculated and the physical energy network information.

[0053] In this embodiment, the physical energy network information includes: an energy supply summary table, summary tables of several different management levels, and a terminal user table; several management levels are set between the energy supply summary table and the terminal user, and each management level is set with several summary tables of the level; the energy supply summary table, the summary tables of different management levels, and the terminal user table each correspond to one level, and the first energy network structure diagram includes the same number of levels as the level, and the terminal user is connected to the energy supply summary table according to the subordinate relationship between the summary tables of several different management levels.

[0054] In this embodiment, the area to be calculated can be set and selected by the user. The following is an example of an application scenario of a business park.

[0055] To deliver electricity, domestic water, natural gas, and other energy sources from energy supply departments to business parks, a master energy meter must be installed on the park side. This master energy meter forms the first layer of the park's energy network. For business parks, the end users who actually pay the bills correspond to the end nodes of the energy network, the final layer of the park's energy network.

[0056] Because business parks have their own management hierarchies, the actual management hierarchies of these parks are collected. Business park operations management units typically divide end nodes into regions, such as floors, buildings, and zones. To facilitate operations management, regional master tables, such as floor master tables and building master tables, are often established. Depending on the level of granularity of the operations management unit, additional management hierarchies, such as floor master tables and building master tables, can be added between the first and last levels of the park energy network.

[0057] Since the management level of a commercial park needs to be set according to the actual situation of the park, some unreasonable settings will appear, such as complex subordinate relationships between tables or the lack of corresponding tables for metering, making it difficult to calculate energy losses. Therefore, it is necessary to standardize the first energy network structure diagram obtained based on the actual situation.

[0058] Reference Figure 2 , the first energy structure diagram needs to be adjusted to something like Figure 2 A structure diagram with clear hierarchical relationships. In a standardized secondary energy structure diagram, any node at any level has exactly one node at a higher level, which is either a master table or an end-user table at a different management level. (Each n-level child node has exactly one (n-1)-level parent node, where n > 1).

[0059] In step S2, refer to Figure 3 , the first energy network structure diagram is standardized to obtain a second energy network structure diagram, specifically:

[0060] Determine whether there is a complex structure in the first energy network structure diagram. If there is a complex structure, construct a virtual table to simplify the first energy network structure diagram to obtain a second energy network structure diagram; and obtain the second energy network structure diagram.

[0061] In this embodiment, the complex structure includes one or more of the following: multiple terminal users share one physical meter, a certain level master table includes several physical meter tables, and a certain node lacks a physical meter table.

[0062] In this embodiment, the number of levels varies depending on the complexity of the business park. A typical business park energy network can be divided into four levels: the first level is the energy supply department master table, the second level is the regional master table, the third level is the building master table, and the fourth level is the end-user table.

[0063] In actual application environments, there are usually multiple complex network structures intertwined, and there are three complex situations as follows. By building a virtual table, the complex network structure is transformed into a standardized energy network structure with clear hierarchy. Figure 4 、 Figure 5 and Figure 6 , where the solid-line box represents the physical meter, and the dotted-line box represents the energy network node, but there is no corresponding physical meter, and its meter code value is calculated by constructing a virtual table.

[0064] Figure 4 A physical meter is shared by multiple end users; when calculating energy loss, a coefficient needs to be assigned to each end user.

[0065] When multiple users share a meter, the virtual meter calculation process is as follows:

[0066] Table code value 用户001 = coefficient 1 × table code value 计量表001 ;

[0067] Table code value 用户002 = coefficient 2 × table code value 计量表001 ;

[0068] Table code value 用户n = coefficient n × table code value 计量表001 ;

[0069]

[0070] Reference Figure 5 , a certain level summary table contains several entity meter tables; in this case, a summary table is virtualized for multiple entity meter tables.

[0071] When a hierarchical summary table contains several entity meter tables, the calculation process of the virtual table is as follows:

[0072]

[0073] Reference Figure 6 ,If a node lacks a physical meter, a virtual meter is generated for the node.

[0074] When a node lacks a physical meter, the virtual meter is calculated as follows:

[0075]

[0076] By constructing a virtual table, the complex physical energy network environment is transformed into a clearly hierarchical energy network.

[0077] In this embodiment, for commercial buildings such as office buildings, shopping malls, apartments, and industrial parks, the management of water and electricity metering, billing, and payment for each end user is typically handled by the operation and management unit. The costs incurred from energy losses between the operation and management unit's low-voltage distribution center and the end user are typically manually calculated by the operation and management unit and simply allocated equally to each end user. Over time, this can result in significant financial losses for some end users. Therefore, energy loss measurement should be accurate down to the individual end user.

[0078] In step S3, the energy loss of the area to be calculated is obtained according to the second energy network structure diagram and the preset loss calculation formula, specifically:

[0079] According to the second energy network structure diagram and the calculation formula of the total line loss between different levels, the total line loss between different levels is obtained;

[0080] According to the second energy network structure diagram, the total line loss and the calculation formula of the arbitrary node loss value, the arbitrary node loss value is obtained;

[0081] The calculation formula for the total line loss between different layers is as follows:

[0082]

[0083] Among them, x is the parent level of y, and the total line loss value (x-y) Refers to the total line loss value between the x-level table and the y-level table, the table code usage value x_i Refers to the difference in meter readings of the meter or virtual meter at the i-th node of the x-level within a given time range; meter code usage value y_j It refers to the difference in meter readings of the j-th meter or virtual meter at level y within a given time range; m and n represent the number of meters at levels x and y, respectively.

[0084] The specific calculation formula for the loss value of any node is:

[0085] Loss value x_i =Total line loss (1-x) × Loss coefficient x_i ;

[0086] Among them, the loss value x_i Indicates the loss value of the i-th node at level x and the total line loss value (1-x) The total line loss between level 1 meter and level x meter, loss coefficient x_i The calculation formula is as follows:

[0087]

[0088] In summary, the calculation scheme of the present invention can not only calculate the energy loss between levels but also allocate the energy loss to specific end users, thus avoiding unreasonable energy loss distribution that may damage the interests of some end users and ensuring that end users only bear reasonable energy losses.

[0089] Example 2:

[0090] Reference Figure 7 , the present invention also discloses an energy loss calculation device, comprising: an acquisition module 101, a standardization module 102 and a loss calculation module 103;

[0091] The acquisition module 101 is used to acquire a first energy network structure diagram of the area to be calculated;

[0092] The standardization module 102 is configured to standardize the first energy network structure diagram to obtain a second energy network structure diagram;

[0093] The loss calculation module 103 is configured to obtain the energy loss of the area to be calculated according to the second energy network structure diagram and a preset loss calculation formula.

[0094] In this embodiment, the obtaining of the first energy network structure diagram of the area to be calculated is specifically as follows:

[0095] Obtain the physical energy network information and number of layers in the area to be calculated;

[0096] A first energy network structure diagram is obtained according to the number of levels of the area to be calculated and the physical energy network information.

[0097] In this embodiment, the physical energy network information includes: an energy supply master table, several master tables at different management levels, and an end-user table; several management levels are set between the energy supply master table and the end-user, and each management level is set with several master tables at that level; the energy supply master table, the master tables at different management levels, and the end-user table each correspond to a level; the first energy network structure diagram includes the same number of levels as the number of levels, and the end-users are connected to the energy supply master table based on the subordinate relationships between the master tables at several different management levels. In this embodiment, the first energy network structure diagram is standardized to obtain a second energy network structure diagram, specifically:

[0098] Determine whether there is a complex structure in the first energy network structure diagram. If a complex structure exists, construct a virtual table to simplify the first energy network structure diagram to obtain a second energy network structure diagram; any node at any level in the second energy network structure diagram has only one node at a higher level, and the node is one of the master tables or end-user tables at different management levels.

[0099] Example 2 is written based on Example 1, so those skilled in the art can implement the energy loss calculation device according to the energy loss calculation method of Example 1. At the same time, the further description and limitations of the energy loss calculation method in Example 1 can also be used to illustrate the energy loss calculation device of Example 2.

[0100] In summary, compared with the prior art, the energy loss calculation method and device of an embodiment of the present invention has the following beneficial effects: by standardizing the obtained first energy network structure diagram, the total table and terminal user table in the area to be calculated can have a clear hierarchical relationship, which facilitates the calculation of energy loss.

[0101] 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 substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the scope of protection of the present invention.

Claims

1. A method for calculating energy loss, characterized in that: include: Obtaining a first energy network structure diagram of the area to be calculated; The first energy network structure diagram is standardized to obtain a second energy network structure diagram; wherein, whether a complex structure exists in the first energy network structure diagram is determined; if a complex structure exists, a virtual table is constructed to simplify the first energy network structure diagram to obtain the second energy network structure diagram; any node at any level in the second energy network structure diagram has one and only one node at a higher level, and the node is one of a master table or an end-user table at a different management level; wherein the complex structure includes one or more of the following: multiple end users sharing a physical meter, a master table at a certain level containing several physical meter tables, and a node lacking a physical meter table; The energy loss of the area to be calculated is obtained based on the second energy network structure diagram and a preset loss calculation formula; wherein the total line loss between different levels is obtained based on the second energy network structure diagram and a calculation formula for the total line loss between different levels; and the loss value of any node is obtained based on the second energy network structure diagram, the total line loss, and a calculation formula for the loss value of any node; The calculation formula for the total line loss between different layers is as follows: Among them, x is the parent level of y, and the total line loss value (x-y) Refers to the total line loss value between the x-level table and the y-level table, the table code usage value x_i Refers to the difference in meter readings of the meter or virtual meter at the i-th node of the x-level within a given time range; meter code usage value y_j It refers to the difference in meter readings of the meter or virtual meter at the jth node in level y within a given time range; m and n represent the number of meters at levels x and y, respectively; The specific calculation formula for the loss value of any node is: Loss value x_i =Total line loss (1-x) × Loss coefficient x_i Among them, the loss value x_i Indicates the loss value of the i-th node at level x and the total line loss value (1-x) The total line loss between level 1 meter and level x meter, loss coefficient x_i The calculation formula is as follows:

2. The energy loss calculation method according to claim 1, characterized in that: The obtaining of the first energy network structure diagram of the area to be calculated is specifically as follows: Obtain the physical energy network information and number of layers in the area to be calculated; A first energy network structure diagram is obtained according to the number of levels of the area to be calculated and the physical energy network information.

3. The energy loss calculation method according to claim 2, characterized in that: The physical energy network information includes: an energy supply summary table, summary tables of several different management levels, and an end-user table; several management levels are set between the energy supply summary table and the end user, and each management level is set with several summary tables of that level; the energy supply summary table, summary tables of different management levels, and end-user table each correspond to one level, and the first energy network structure diagram includes the same number of levels as the number of levels, and the end user is connected to the energy supply summary table according to the subordinate relationship between the summary tables of several different management levels.

4. An energy loss calculation device, characterized in that: include: Acquisition module, normalization module and loss calculation module; The acquisition module is used to acquire a first energy network structure diagram of the area to be calculated; The standardization module is configured to standardize the first energy network structure diagram to obtain a second energy network structure diagram; wherein, it is determined whether a complex structure exists in the first energy network structure diagram; if a complex structure exists, a virtual table is constructed to simplify the first energy network structure diagram to obtain the second energy network structure diagram; any node at any level in the second energy network structure diagram has one and only one node at a higher level, and the node is a master table or an end-user table at a different management level; wherein the complex structure includes one or more of the following: multiple end users sharing a physical meter, a master table at a certain level containing several physical meter tables, and a node lacking a physical meter table; The loss calculation module is configured to obtain the energy loss of the area to be calculated based on the second energy network structure diagram and a preset loss calculation formula; wherein the total line loss between different levels is obtained based on the second energy network structure diagram and a calculation formula for the total line loss between different levels; and the loss value of any node is obtained based on the second energy network structure diagram, the total line loss, and a calculation formula for the loss value of any node; The formula for calculating the total line loss between different layers is as follows: Among them, x is the parent level of y, and the total line loss value (x-y) Refers to the total line loss value between the x-level table and the y-level table, the table code usage value x_i Refers to the difference in meter readings of the meter or virtual meter at the i-th node of the x-level within a given time range; meter code usage value y_j It refers to the difference in meter readings of the j-th meter or virtual meter at level y within a given time range; m and n represent the number of meters at level x and level y, respectively; The specific calculation formula for the loss value of any node is: Loss value x_i =Total line loss (1-x) × Loss coefficient x_i Among them, the loss value x_i Indicates the loss value of the i-th node at level x and the total line loss value (1-x) The total line loss between level 1 meter and level x meter, loss coefficient x_i The calculation formula is as follows:

5. The energy loss calculation device according to claim 4, characterized in that: The obtaining of the first energy network structure diagram of the area to be calculated is specifically as follows: Obtain the physical energy network information and number of layers in the area to be calculated; A first energy network structure diagram is obtained according to the number of levels of the area to be calculated and the physical energy network information.

6. The energy loss calculation device according to claim 5, characterized in that: The physical energy network information includes: an energy supply master table, several master tables of different management levels, and an end-user table; several management levels are set between the energy supply master table and the end-user, and each management level is set with several master tables of that level; the energy supply master table, the master tables of different management levels, and the end-user table each correspond to one level; the first energy network structure diagram includes the same number of levels as the number of levels, and the end-user is connected to the energy supply master table according to the subordinate relationship between the master tables of several different management levels.

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