Consider multi-dimensional accurate consumption system and method of new energy

Abstract

The application belongs to the technical field of multi-dimensional precise consumption of new energy, and proposes a multi-dimensional precise consumption system and method of new energy, mainly including: first, dividing the battery unit group into direct grid-connected battery unit group and indirect grid-connected battery unit group, then, respectively monitoring the electric energy of each battery unit group, when the electric energy stored by the first direct grid-connected battery unit group reaches the first limit value, controlling the electric energy exceeding the first limit value to be directly connected to the power transmission line, monitoring the electric energy stored by the indirect grid-connected battery unit group reaching the second limit value, controlling the electric energy exceeding the second limit value to be transmitted to the second direct grid-connected battery unit group, and respectively monitoring the electric energy stored by the second direct grid-connected battery unit group reaching the corresponding third limit value or fourth limit value, and controlling the electric energy exceeding the corresponding limit value to be connected to the power transmission line. The application can adopt different grid-connected modes according to different battery unit groups.

Description

Technical Field

[0001] This invention relates to the field of multi-dimensional precise absorption technology of new energy, and particularly to a system and method for multi-dimensional precise absorption of new energy. Background Technology

[0002] Grid absorption capacity is an important concept in power systems. It refers to the grid's ability to absorb and transmit electricity. Simply put, grid absorption capacity is the size of the electrical load that the grid can carry.

[0003] With the progress of industrialization and urbanization, the demand for electricity continues to grow, and renewable energy sources are gradually being put into use on a large scale, such as wind power and photovoltaic power generation. The renewable energy sources put into use can not only meet the normal power supply of the equipment used by their own units, but also provide electricity to nearby households and enterprises after being inverted. Furthermore, the electricity generated by renewable energy sources is increasingly being connected to transmission lines for long-distance transmission to provide power to households and enterprises in more distant areas.

[0004] With the increasing intelligence of electrical equipment and the growth of electricity consumption, the power system needs to have corresponding absorption capacity to adapt to this change. For the increasing grid connection of renewable energy sources, the difficulty of erecting transmission lines and substations is far greater than the difficulty of installing renewable energy equipment in different regions. Therefore, it cannot be guaranteed that all areas with wind or solar power generation can be connected to suitable transmission lines or substations with low loss, convenience, and directness. Therefore, how to smoothly connect the electricity generated by already deployed renewable energy equipment to transmission lines or substations is an urgent problem to be solved. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a multi-dimensional precision consumption system and method that considers new energy sources. This system can facilitate the precise consumption of electricity generated by renewable energy sources by changing the grid connection method of the electricity generated by renewable energy sources without changing the transmission lines and substations.

[0006] To achieve the above objectives, the technical solution of the present invention is as follows:

[0007] In a first aspect, the present invention provides a multi-dimensional precision utilization system for new energy sources, comprising:

[0008] New energy storage units are used to store electrical energy generated by new energy power generation devices through battery packs.

[0009] A battery unit grouping unit is used to group battery units based on the distance of the battery units to the transmission line. The battery units grouped include directly grid-connected battery unit groups and indirectly grid-connected battery unit groups. The directly grid-connected battery unit group includes at least one first directly grid-connected battery unit group for grid connection only, and a second directly grid-connected battery unit group for direct power transmission with the indirectly grid-connected battery unit group and grid connection.

[0010] The first battery group power monitoring and control unit is used to monitor whether the power stored in the first directly grid-connected battery group has reached the first limit value. When the first limit value is reached, the control unit will directly connect the power exceeding the first limit value into the transmission line.

[0011] The second battery group power monitoring and control unit is used to monitor whether the power stored in the indirectly grid-connected battery group has reached a second limit value. When the second limit value is reached, the control unit will transfer the power exceeding the second limit value to the second directly grid-connected battery group. It is also used to monitor whether the second directly grid-connected battery group has received and stored the power transmitted from the indirectly grid-connected battery group. If not, it will monitor whether the power stored in the second directly grid-connected battery group has reached a third limit value. When the third limit value is reached, the control unit will directly connect the power exceeding the third limit value to the transmission line. If so, it will monitor whether the power stored in the second directly grid-connected battery group has reached a fourth limit value. When the fourth limit value is reached, the control unit will connect the power exceeding the fourth limit value to the transmission line.

[0012] As a further optimization, the first battery group power monitoring and control unit is also used to record the first location information of directly connecting power exceeding the first limit value into the transmission line; the second battery group power monitoring and control unit is also used to record the second location information of connecting power exceeding the fourth limit value into the transmission line.

[0013] The system also includes:

[0014] The load point acquisition unit is used to acquire the third location information of the load points with electricity demand;

[0015] The new energy consumption control unit is used to select, based on first location information, second location information, and third location information, the first or second location information of the connecting transmission line that is closest to the load point with electricity demand along the transmission direction of the transmission line. According to the electricity demand of the load point with electricity demand and the power of the selected connecting transmission line, the unit obtains the remaining power transmitted from the connecting location along the transmission direction of the transmission line to the load point with electricity demand, and dispatches it to the load point with electricity demand to complete the consumption of the system energy generation.

[0016] As a further optimization, the distance from which the battery unit is connected to the transmission line is calculated based on the energy loss value of the battery unit directly connected to the transmission line.

[0017] As a further optimization, when the power loss value is lower than the first preset value of the power energy of the battery unit to be connected to the transmission line, the corresponding battery unit is classified as a directly grid-connected battery unit group; otherwise, it is classified as an indirectly grid-connected battery unit group.

[0018] As a further optimization, when the energy loss value of the battery unit directly connected to the transmission line in the battery unit group is lower than the second preset value, the corresponding battery unit is selected to be included in the second direct grid-connected battery unit group, where the second preset value is less than the first preset value.

[0019] As a further optimization, when a battery unit is selected into the second directly grid-connected battery unit group, the boundary of the indirect grid-connected battery unit group is delineated, and the center point within the delineated range is obtained. The indirect grid-connected battery unit closest to the center point is calculated. Then, the distance between the indirect grid-connected battery unit and each candidate battery unit in the second directly grid-connected battery unit group is calculated, and the battery unit closest to it is selected as the battery unit of the second battery unit group with which direct power transmission occurs.

[0020] As a further optimization, the proportion of the total stored energy of the indirect grid-connected battery unit group to which the second limit value is located is greater than the proportion of the total stored energy of the first directly grid-connected battery unit group to which the first limit value is located.

[0021] The third limit value is greater than the first limit value, and the fourth limit value is greater than the third limit value;

[0022] Secondly, the present invention provides a multi-dimensional and precise method for the utilization of new energy sources, comprising the following steps:

[0023] Storing electrical energy generated by new energy power generation devices through battery packs;

[0024] Based on the distance of the battery units connected to the transmission line, the battery units are grouped into groups, including directly grid-connected battery unit groups and indirectly grid-connected battery unit groups. The directly grid-connected battery unit group includes at least one first directly grid-connected battery unit group for grid connection only, and a second directly grid-connected battery unit group for direct power transmission with the indirectly grid-connected battery unit group and grid connection.

[0025] Monitor whether the electrical energy stored in the first directly grid-connected battery unit group has reached the first limit value. When the first limit value is reached, control the electrical energy exceeding the first limit value to be directly connected to the transmission line.

[0026] The system monitors whether the electrical energy stored in the indirect grid-connected battery generator group has reached the second limit value. When the second limit value is reached, the system controls the transfer of electrical energy exceeding the second limit value to the second directly grid-connected battery generator group.

[0027] The system monitors whether the second directly connected battery generator group receives and stores electrical energy transmitted from the indirectly connected battery generator group. If not, it monitors whether the electrical energy stored in the second directly connected battery generator group reaches the third limit value. When the third limit value is reached, the system controls the direct connection of electrical energy exceeding the third limit value to the transmission line. If so, it monitors whether the electrical energy stored in the second directly connected battery generator group reaches the fourth limit value. When the fourth limit value is reached, the system controls the connection of electrical energy exceeding the fourth limit value to the transmission line.

[0028] As a further optimization, the aforementioned multi-dimensional and precise utilization method for new energy sources also includes:

[0029] Record the first location information of electrical energy exceeding the first limit value being directly connected to the transmission line;

[0030] Record the second location information of electrical energy exceeding the fourth limit value being incorporated into the transmission line;

[0031] Obtain the third location information of the load points with electricity demand;

[0032] Based on the first location information, the second location information, and the third location information, the first location information or the second location information of the connecting transmission line that is closest to the load point with electricity demand along the transmission direction of the transmission line is selected. According to the electricity demand of the load point with electricity demand and the power of the selected connecting transmission line, the remaining power transmitted from the connecting location along the transmission direction of the transmission line to the load point with electricity demand is obtained and dispatched to the load point with electricity demand to complete the consumption of system energy generation.

[0033] Compared with the prior art, the advantages of this invention are as follows:

[0034] Battery storage units are grouped based on their distance from transmission lines. These groups include directly grid-connected and indirectly grid-connected battery storage unit groups. For directly grid-connected battery storage unit groups, since the stored energy is generally close to transmission lines or substations, direct grid connection results in lower energy loss and is easily met. Furthermore, these groups can exchange energy, satisfying normal equipment operation needs while also allowing surplus energy to be fed back into the grid. For battery packs that cannot be directly connected to the grid, these battery packs are often installed at locations far from transmission lines or substations. Direct grid connection would present significant challenges, including difficult equipment installation and commissioning, and greater energy loss due to the long distance. Therefore, this invention provides a second directly connected battery pack group that can directly transmit power to and connect to the grid, in addition to the indirectly connected battery pack group. This second directly connected battery pack group assists in grid connection and the integration of renewable energy. Attached Figure Description

[0035] Figure 1 This is a basic structural block diagram of the multi-dimensional precision consumption system for new energy provided in Embodiment 1 of the present invention;

[0036] Figure 2 This is a preferred structural block diagram of the multi-dimensional precision consumption system for new energy provided in Embodiment 2 of the present invention. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0038] Example 1:

[0039] This embodiment provides a multi-dimensional and precise energy utilization system that considers new energy sources. See the structural block diagram below. Figure 1 The system includes:

[0040] New energy storage units are used to store electrical energy generated by new energy power generation devices through battery packs.

[0041] The battery unit grouping unit is used to group battery units based on the distance of the battery units connected to the transmission line. The battery units grouped include directly grid-connected battery unit groups and indirectly grid-connected battery unit groups. The directly grid-connected battery unit group includes at least one first directly grid-connected battery unit group for grid connection only, and a second directly grid-connected battery unit group for direct power transmission with the indirectly grid-connected battery unit group and grid connection.

[0042] The first battery group power monitoring and control unit is used to monitor whether the power stored in the first directly grid-connected battery group has reached the first limit value. When the first limit value is reached, the control unit will directly connect the power exceeding the first limit value into the transmission line.

[0043] The second battery group power monitoring and control unit is used to monitor whether the power stored in the indirectly grid-connected battery group has reached a second limit value. When the second limit value is reached, the control unit will transfer the power exceeding the second limit value to the second directly grid-connected battery group. It is also used to monitor whether the second directly grid-connected battery group has received and stored the power transmitted from the indirectly grid-connected battery group. If not, it will monitor whether the power stored in the second directly grid-connected battery group has reached a third limit value. When the third limit value is reached, the control unit will directly connect the power exceeding the third limit value to the transmission line. If so, it will monitor whether the power stored in the second directly grid-connected battery group has reached a fourth limit value. When the fourth limit value is reached, the control unit will connect the power exceeding the fourth limit value to the transmission line.

[0044] Therefore, by dividing battery cell groups into directly grid-connected and indirectly grid-connected battery cell groups, the energy stored in these groups is generally close to transmission lines or substations. Direct grid connection results in lower energy loss and is easier to meet grid connection requirements. Furthermore, energy can be transferred within these groups, satisfying the operational needs of normal equipment and allowing surplus energy to be fed back into the grid. Conversely, battery cell groups that cannot be directly grid-connected are often installed far from transmission lines or substations. Direct grid connection presents significant challenges in terms of equipment installation and commissioning, and the longer distance also leads to greater energy loss. Through the monitoring and control functions of the first and second battery group power monitoring and control units, different grid connection methods can be adopted according to different battery group conditions without changing the transmission lines and substations. For battery group that cannot be directly connected to the grid, a second directly connected battery group will be selected from the directly connected battery group to directly transmit power to the indirectly connected battery group and connect to the grid, in order to assist in completing the grid connection work and the consumption of new energy power. In this way, by changing the grid connection method of the power generated by renewable energy, the accurate consumption of the power generated by renewable energy can be facilitated.

[0045] In a preferred embodiment, the first battery pack power monitoring and control unit is further configured to record first location information of directly integrating power exceeding a first limit value into the transmission line, and the second battery pack power monitoring and control unit is further configured to record second location information of integrating power exceeding a fourth limit value into the transmission line. Furthermore, as... Figure 2 As shown, the multi-dimensional precision consumption system for new energy also includes a load point acquisition unit, used to acquire the third location information of the load point with electricity demand; and a new energy consumption control unit, used to select the first or second location information of the connecting transmission line that is closest to the load point with electricity demand along the transmission direction of the transmission line based on the first, second and third location information, and according to the electricity demand of the load point with electricity demand and the power of the selected connecting transmission line, to acquire the remaining power transmitted from the connecting location along the transmission direction of the transmission line to the load point with electricity demand, and to schedule and send it to the load point with electricity demand to complete the consumption of the system's energy generation.

[0046] In this way, the power demand of the load point can be controlled by the new energy consumption control unit to dispatch and control the power connected to the transmission line at different locations. The power connected to the load point is prioritized for dispatch and use. On the one hand, this avoids the transmission loss of power when it is transmitted over long distances on the transmission line. On the other hand, it can alleviate the dispatch complexity of most current new energy consumption systems.

[0047] Even without dividing the battery packs into groups, the electrical energy generated by each battery pack will be used directly for the normal operation of its own equipment, and will also be stored inside the battery pack for subsequent grid connection.

[0048] Therefore, in this embodiment, preparations for grid connection are carried out using a battery pack group. The first battery pack group power monitoring and control unit can monitor whether the stored power of the first directly grid-connected battery pack group has reached a first limit value. When the first limit value is reached, the control unit will directly connect the power exceeding the first limit value into the transmission line. The first limit value here needs to be determined based on the current power consumption and power storage of the equipment inside the battery pack group. The operation and maintenance personnel can flexibly set the first limit value according to the specific situation inside the battery pack group.

[0049] Here, the classification of battery units takes into account the ease of equipment installation and power loss during grid connection. Therefore, when the power loss value is lower than the first preset value of the power energy of the battery unit to be connected to the transmission line, the corresponding battery unit is classified as a directly grid-connected battery unit group; otherwise, it is classified as an indirectly grid-connected battery unit group.

[0050] For indirect grid-connected battery packs, if the generated power is only sufficient to meet the normal operation of the equipment within the pack and the stored power does not meet the grid connection standard, then the power will not be transferred to the second directly grid-connected battery pack. The second directly grid-connected battery pack will only arrange grid connection based on the third limit value set by its own pack. If the stored power of the indirect grid-connected battery pack already meets the grid connection conditions, then the excess power will be transferred to the second directly grid-connected battery pack, and the grid connection will be completed with the help of the second directly grid-connected battery pack.

[0051] In this embodiment, since power loss during grid connection is generally considered, the distance of the battery unit connecting to the transmission line can be calculated based on the power loss value of the battery unit directly connected to the transmission line.

[0052] Similarly, in order to select battery units that have lower power loss when directly connected to the grid, battery units with lower power loss values ​​can be selected as candidates. That is, when the power loss value of a battery unit in the group of directly connected battery units is lower than the second preset value when directly connected to the transmission line, the corresponding battery unit is selected as a candidate for the second group of directly connected battery units, where the second preset value is less than the first preset value.

[0053] It should be noted that when a battery unit is selected to be included in the second directly grid-connected battery unit group, the boundary of the indirect grid-connected battery unit group is delineated, and the center point within the delineated area is obtained. The indirect grid-connected battery unit closest to the center point is calculated. Then, the distance between the indirect grid-connected battery unit and each of the selected battery units in the second directly grid-connected battery unit group is calculated, and the battery unit closest to it is selected as the battery unit of the second battery unit group with which direct power transmission is performed.

[0054] Here, when delineating the boundary of the indirect grid-connected battery unit group, since it cannot be guaranteed that the battery units installed in the group are evenly distributed, the actual boundary shape is inevitably an irregular polygon. For irregular polygons, polygon approximation rules can be used to regularize the polygons, which makes it easier to find the center point.

[0055] As a supplement, since the number of battery units and storage capacity contained in the first and second directly grid-connected battery unit groups may be different, the setting of the first and second limit values ​​can generally be based on the proportion of the total stored energy of the battery unit group. However, the second directly grid-connected battery unit group needs to meet lower energy loss when connected to the grid. Therefore, the proportion of the second limit value in the total stored energy of the indirectly grid-connected battery unit group is greater than the proportion of the first limit value in the total stored energy of the first directly grid-connected battery unit group.

[0056] It is understood that the third limit value is greater than the first limit value, and the fourth limit value is greater than the third limit value.

[0057] Example 2

[0058] This embodiment provides a multi-dimensional and precise method for the consumption of new energy sources, including the following steps:

[0059] S1. Storing electrical energy generated by new energy power generation devices through battery storage units;

[0060] S2. Based on the distance of the battery units connected to the transmission line, the battery units are grouped into groups. The battery units grouped into groups include directly grid-connected battery unit groups and indirectly grid-connected battery unit groups. The directly grid-connected battery unit group includes at least one first directly grid-connected battery unit group for grid connection only, and one second directly grid-connected battery unit group for direct power transmission with the indirectly grid-connected battery unit group and grid connection.

[0061] S3. Monitor whether the electrical energy stored in the first directly grid-connected battery unit group has reached the first limit value. When the first limit value is reached, control the electrical energy exceeding the first limit value to be directly connected to the transmission line.

[0062] S4. Monitor whether the electrical energy stored in the indirect grid-connected battery generator group has reached the second limit value. When the second limit value is reached, control the transfer of electrical energy exceeding the second limit value to the second direct grid-connected battery generator group.

[0063] S5. Monitor whether the second directly connected battery generator group receives and stores electrical energy transmitted from the indirectly connected battery generator group. If not, monitor whether the electrical energy stored in the second directly connected battery generator group reaches the third limit value. When the third limit value is reached, control the electrical energy exceeding the third limit value to be directly connected to the transmission line. If so, monitor whether the electrical energy stored in the second directly connected battery generator group reaches the fourth limit value. When the fourth limit value is reached, control the electrical energy exceeding the fourth limit value to be connected to the transmission line.

[0064] In other words, this method first divides the battery pack group into directly grid-connected battery pack groups and indirectly grid-connected battery pack groups. Then, it monitors the energy of each battery pack group. When the stored energy of the first directly grid-connected battery pack group reaches a first limit value, the control system directly connects the excess energy into the transmission line. When the stored energy of the indirectly grid-connected battery pack group reaches a second limit value, the control system transfers the excess energy to the second directly grid-connected battery pack group. Then, when the stored energy of the second directly grid-connected battery pack group reaches a corresponding third or fourth limit value, the control system transfers the excess energy to the second directly grid-connected battery pack group. The electrical energy corresponding to the limit value is connected to the transmission line. Therefore, this method can adopt different grid connection methods according to different battery units. Without changing the transmission line and substation, different grid connection methods can be adopted according to different battery units. For battery unit groups that cannot be directly connected to the grid, a second directly connected battery unit group will be selected from the directly connected battery unit groups to directly transmit power to the indirectly connected battery unit group and connect to the grid. This will help complete the grid connection work and the consumption of new energy power. By changing the grid connection method of the electricity generated by renewable energy, it is easier to accurately consume the electricity generated by renewable energy.

[0065] As a preferred embodiment, the above-described multi-dimensional precise consumption method considering new energy sources further includes the following steps:

[0066] S6. Record the first position information of directly merging electrical energy exceeding the first limit value into the transmission line;

[0067] S7. Record the second position information of the electrical energy exceeding the fourth limit value being incorporated into the transmission line;

[0068] S8. Obtain the third location information of the load point with electricity demand;

[0069] S9. Based on the first location information, the second location information, and the third location information, select the first location information or the second location information of the transmission line that is closest to the load point with power demand along the transmission direction of the transmission line. According to the power demand of the load point with power demand and the power of the selected transmission line, obtain the remaining power transmitted from the connection location along the transmission direction of the transmission line to the load point with power demand, and dispatch it to the load point with power demand to complete the consumption of system energy generation.

[0070] In this way, for the electricity demand of the load point, by scheduling and controlling the power connected to the transmission line at different locations, the power connected to the load point closest to the load point is prioritized for use. On the one hand, this avoids the transmission loss of power during long-distance transmission through the transmission line, and on the other hand, it can alleviate the scheduling complexity of most current new energy consumption systems.

[0071] Even without dividing the battery packs into groups, the electrical energy generated by each battery pack will be used directly for the normal operation of its own equipment, and will also be stored inside the battery pack for subsequent grid connection.

[0072] Therefore, in this embodiment, the preparation for grid connection is carried out in the form of a battery pack group. It monitors whether the electrical energy stored in the first directly grid-connected battery pack group has reached a first limit value. When the first limit value is reached, the control will directly connect the electrical energy exceeding the first limit value into the transmission line. The first limit value here needs to be determined by comprehensively considering the current power consumption and electrical energy storage of the equipment inside the battery pack when to connect to the grid. The operation and maintenance personnel can flexibly set the first limit value according to the specific situation inside the battery pack group.

[0073] Here, the classification of battery units takes into account the ease of equipment installation and power loss during grid connection. Therefore, when the power loss value is lower than the first preset value of the power energy of the battery unit to be connected to the transmission line, the corresponding battery unit is classified as a directly grid-connected battery unit group; otherwise, it is classified as an indirectly grid-connected battery unit group.

[0074] For indirect grid-connected battery packs, if the generated power is only sufficient to meet the normal operation of the equipment within the pack and the stored power does not meet the grid connection standard, then the power will not be transferred to the second directly grid-connected battery pack. The second directly grid-connected battery pack will only arrange grid connection based on the third limit value set by its own pack. If the stored power of the indirect grid-connected battery pack already meets the grid connection conditions, then the excess power will be transferred to the second directly grid-connected battery pack, and the grid connection will be completed with the help of the second directly grid-connected battery pack.

[0075] In this embodiment, since power loss during grid connection is generally considered, the distance of the battery unit connecting to the transmission line can be calculated based on the power loss value of the battery unit directly connected to the transmission line.

[0076] Similarly, in order to select battery units that have lower power loss when directly connected to the grid, battery units with lower power loss values ​​can be selected as candidates. That is, when the power loss value of a battery unit in the group of directly connected battery units is lower than the second preset value when directly connected to the transmission line, the corresponding battery unit is selected as a candidate for the second group of directly connected battery units, where the second preset value is less than the first preset value.

[0077] It should be noted that when a battery unit is selected to be included in the second directly grid-connected battery unit group, the boundary of the indirect grid-connected battery unit group is delineated, and the center point within the delineated area is obtained. The indirect grid-connected battery unit closest to the center point is calculated. Then, the distance between the indirect grid-connected battery unit and each of the selected battery units in the second directly grid-connected battery unit group is calculated, and the battery unit closest to it is selected as the battery unit of the second battery unit group with which direct power transmission is performed.

[0078] Here, when delineating the boundary of the indirect grid-connected battery unit group, since it cannot be guaranteed that the battery units installed in the group are evenly distributed, the actual boundary shape is inevitably an irregular polygon. For irregular polygons, polygon approximation rules can be used to regularize the polygons, which makes it easier to find the center point.

[0079] As a supplement, since the number of battery units and storage capacity contained in the first and second directly grid-connected battery unit groups may be different, the setting of the first and second limit values ​​can generally be based on the proportion of the total stored energy of the battery unit group. However, the second directly grid-connected battery unit group needs to meet lower energy loss when connected to the grid. Therefore, the proportion of the second limit value in the total stored energy of the indirectly grid-connected battery unit group is greater than the proportion of the first limit value in the total stored energy of the first directly grid-connected battery unit group.

[0080] It is understood that the third limit value is greater than the first limit value, and the fourth limit value is greater than the third limit value.

[0081] The above embodiments are merely illustrative of the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand the content of the present invention and implement it accordingly. They should not be construed as limiting the scope of protection of the present invention. All equivalent changes or modifications made based on the essence of the content of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A multi-dimensional precision utilization system considering new energy sources, characterized in that, include: New energy storage units are used to store electrical energy generated by new energy power generation devices through battery packs. The battery unit grouping unit is used to group battery units based on the distance of the battery units connected to the transmission line. The battery units grouped include directly grid-connected battery unit groups and indirectly grid-connected battery unit groups. The directly grid-connected battery pack group includes at least one first directly grid-connected battery pack group for grid connection only, and a second directly grid-connected battery pack group for direct power transmission with the indirectly grid-connected battery pack group and for grid connection. The first battery group power monitoring and control unit is used to monitor whether the power stored in the first directly grid-connected battery group has reached the first limit value. When the first limit value is reached, the control unit will directly connect the power exceeding the first limit value into the transmission line. The second battery group power monitoring and control unit is used to monitor whether the power stored in the indirect grid-connected battery group has reached the second limit value. When the second limit value is reached, the control unit will transfer the power exceeding the second limit value to the second direct grid-connected battery group. It is also used to monitor whether the second direct grid-connected battery group has received and stored the power transmitted from the indirect grid-connected battery group. If not, it will monitor whether the power stored in the second direct grid-connected battery group has reached the third limit value. When the third limit value is reached, the control unit will directly connect the power exceeding the third limit value to the transmission line. If so, it will monitor whether the power stored in the second direct grid-connected battery group has reached the fourth limit value. When the fourth limit value is reached, the control unit will connect the power exceeding the fourth limit value to the transmission line. When a battery unit is selected to be included in the second directly grid-connected battery unit group, the boundary of the indirect grid-connected battery unit group is delineated, and the center point within the delineated area is obtained. The indirect grid-connected battery unit closest to the center point is calculated. Then, the distance between the indirect grid-connected battery unit and each candidate battery unit in the second directly grid-connected battery unit group is calculated, and the battery unit closest to it is selected as the battery unit of the second battery unit group with which direct power transmission is performed.

2. The multi-dimensional precision consumption system considering new energy sources as described in claim 1, characterized in that, The first battery pack group power monitoring and control unit is also used to record the first location information of directly connecting power exceeding the first limit value into the transmission line; the second battery pack group power monitoring and control unit is also used to record the second location information of connecting power exceeding the fourth limit value into the transmission line. The system also includes: The load point acquisition unit is used to acquire the third location information of the load points with electricity demand; The new energy consumption control unit is used to select, based on first location information, second location information, and third location information, the first or second location information of the connecting transmission line that is closest to the load point with electricity demand along the transmission direction of the transmission line. According to the electricity demand of the load point with electricity demand and the power of the selected connecting transmission line, the unit obtains the remaining power transmitted from the connecting location along the transmission direction of the transmission line to the load point with electricity demand, and dispatches it to the load point with electricity demand to complete the consumption of the system energy generation.

3. The multi-dimensional precision consumption system for new energy sources as described in claim 1, characterized in that, The distance from which the battery pack is connected to the transmission line is calculated based on the energy loss value of the battery pack directly connected to the transmission line.

4. The multi-dimensional precision consumption system for new energy sources as described in claim 3, characterized in that, When the energy loss value is lower than the first preset value of the energy of the battery unit to be connected to the transmission line, the corresponding battery unit will be classified as a directly grid-connected battery unit group; otherwise, it will be classified as an indirectly grid-connected battery unit group.

5. The multi-dimensional precision consumption system considering new energy sources as described in claim 4, characterized in that, When the energy loss value of a battery unit directly connected to the transmission line in a battery unit group is lower than a second preset value, the corresponding battery unit is selected to be included in a second direct grid-connected battery unit group, where the second preset value is less than the first preset value.

6. The multi-dimensional precision consumption system for new energy sources as described in claim 1 or 2, characterized in that, The proportion of the total stored energy of the indirect grid-connected battery unit group to which the second limit value is located is greater than the proportion of the total stored energy of the first directly grid-connected battery unit group to which the first limit value is located. The third limit value is greater than the first limit value, and the fourth limit value is greater than the third limit value.

7. A multi-dimensional and precise method for absorbing new energy sources, characterized in that, Includes the following steps: Storing electrical energy generated by new energy power generation devices through battery packs; Based on the distance of the battery units connected to the transmission line, the battery units are grouped into groups, including directly grid-connected battery unit groups and indirectly grid-connected battery unit groups. The directly grid-connected battery pack group includes at least one first directly grid-connected battery pack group for grid connection only, and a second directly grid-connected battery pack group for direct power transmission with the indirectly grid-connected battery pack group and for grid connection. Monitor whether the electrical energy stored in the first directly grid-connected battery unit group has reached the first limit value. When the first limit value is reached, control the electrical energy exceeding the first limit value to be directly connected to the transmission line. The system monitors whether the electrical energy stored in the indirect grid-connected battery generator group has reached the second limit value. When the second limit value is reached, the system controls the transfer of electrical energy exceeding the second limit value to the second directly grid-connected battery generator group. The system monitors whether the second directly connected battery generator group receives and stores electrical energy transmitted from the indirectly connected battery generator group. If not, it monitors whether the electrical energy stored in the second directly connected battery generator group reaches the third limit value. When the third limit value is reached, the system controls the direct connection of electrical energy exceeding the third limit value to the transmission line. If so, it monitors whether the electrical energy stored in the second directly connected battery generator group reaches the fourth limit value. When the fourth limit value is reached, the system controls the connection of electrical energy exceeding the fourth limit value to the transmission line. When a battery unit is selected to be included in the second directly grid-connected battery unit group, the boundary of the indirect grid-connected battery unit group is delineated, and the center point within the delineated area is obtained. The indirect grid-connected battery unit closest to the center point is calculated. Then, the distance between the indirect grid-connected battery unit and each candidate battery unit in the second directly grid-connected battery unit group is calculated, and the battery unit closest to it is selected as the battery unit of the second battery unit group with which direct power transmission is performed.

8. The multi-dimensional precise consumption method for new energy sources as described in claim 7, characterized in that, The method further includes: Record the first location information of electrical energy exceeding the first limit value being directly connected to the transmission line; Record the second location information of electrical energy exceeding the fourth limit value being incorporated into the transmission line; Obtain the third location information of the load points with electricity demand; Based on the first location information, the second location information, and the third location information, the first location information or the second location information of the connecting transmission line that is closest to the load point with electricity demand along the transmission direction of the transmission line is selected. According to the electricity demand of the load point with electricity demand and the power of the selected connecting transmission line, the remaining power transmitted from the connecting location along the transmission direction of the transmission line to the load point with electricity demand is obtained and dispatched to the load point with electricity demand to complete the consumption of system energy generation.

9. The multi-dimensional precise consumption method for new energy sources as described in claim 7 or 8, characterized in that, The distance for the battery unit to be connected to the transmission line is calculated based on the energy loss value of the battery unit directly connected to the transmission line. When the energy loss value is lower than the first preset value of the energy of the battery unit to be connected to the transmission line, the corresponding battery unit is classified as a directly connected battery unit group; otherwise, it is classified as an indirectly connected battery unit group.

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