New Energy Distribution Network Regulation Method and System Based on Flexible Load Collaboration

Abstract

The present invention belongs to the technical field of new energy power distribution, and particularly relates to a new energy distribution network regulation method and system based on flexible load coordination. Different new energy microgrid subsystems are established. The new energy microgrid subsystem includes a power generation module, an energy storage module, an additional energy storage module, and a load module. Different new energy microgrid subsystems are connected to the traditional power grid subsystem, and different new energy microgrid subsystems adjacent in geographical location are determined. A new energy module is constructed between two adjacent new energy microgrid subsystems. The regulation module distributes electric energy between two adjacent new energy microgrid subsystems. When the electricity demand cannot be met, the additional energy storage module in the subsystem is controlled to discharge. When the electricity demand still cannot be met, the load module in the subsystem is further controlled to receive electric energy from the traditional power grid subsystem. The present invention can reduce the dependence of the new energy microgrid subsystem on the traditional power grid subsystem.

Description

Technical Field

[0001] The present invention belongs to the technical field of new energy power distribution, and particularly relates to a new energy distribution network regulation method and system based on flexible load collaboration. Background Art

[0002] With the continuous development of new energy power generation technology, more and more new energy microgrid subsystems have emerged. The new energy microgrid subsystem generates electric energy through new energy and supplies it to the electrical equipment within the subsystem for consumption. The new energy microgrid subsystem has the advantages of environmental protection and sustainability, low cost, and rich resources.

[0003] The invention with the publication number CN108173291B provides a distributed new energy intelligent power distribution method based on weather factors, including the steps of: obtaining forecast weather data, importing the forecast weather data into a distributed power station power generation model to obtain power generation prediction data of the distributed power station; obtaining historical power distribution data of the grid connection side power grid, importing the historical power distribution data into a power grid power distribution demand model to obtain power distribution prediction data; intelligent matching, matching the power generation prediction data with the power distribution prediction data to obtain the pre-power distribution quota for grid-connected power generation of the distributed power station; power distribution and grid connection, and the distributed power station performs grid-connected power generation according to the pre-power distribution quota. In addition, the invention application with the publication number CN117650532A gives a power grid management method for new energy access, predicts the predicted electricity consumption of the target area and the predicted power generation of the new energy power station in the microgrid where the target area is located at the time to be predicted through a deep learning algorithm, and performs power consumption scheduling based on this, and proposes a multi-level tracking algorithm, which can effectively optimize each parameter to be optimized and realize power grid scheduling under the target strategy. However, the above-mentioned invention and invention application both rely to a large extent on the traditional power grid. Therefore, the present invention proposes a new energy distribution network regulation method and system based on flexible load collaboration. Summary of the Invention

[0004] The present invention establishes different new energy microgrid subsystems, which produce electric energy and consume the produced electric energy. At the same time, different new energy microgrid subsystems are connected to the traditional power grid subsystem, and different new energy microgrid subsystems adjacent in geographical location are determined. A new energy module is constructed between two adjacent new energy microgrid subsystems. Through the regulation module, the new energy microgrid subsystem first receives electric energy from the nearby new energy module, then receives electric energy from the additional energy storage module, and finally receives electric energy from the traditional power grid subsystem. The aim is to reduce the dependence of the new energy microgrid subsystem on the traditional power grid subsystem.

[0005] In order to achieve the above-mentioned invention purpose, the present invention provides the following new energy distribution network regulation method based on flexible load collaboration, which mainly includes the following steps:

[0006] Establish different new energy microgrid subsystems, where the new energy microgrid subsystem includes a power generation module, an energy storage module, an additional energy storage module, and a load module. The power generation module generates electrical energy relying on new energy, and the generated electrical energy is stored in the energy storage module. The additional energy storage module includes the energy storage device of an electric vehicle, and the load module consists of electrical equipment that consumes the electrical energy stored in the energy storage module and the additional energy storage module;

[0007] Connect different new energy microgrid subsystems to the traditional power grid subsystem. The electrical energy of the traditional power grid subsystem is supplied by a power supplier, and determine different new energy microgrid subsystems that are adjacent geographically. Build a new energy module between two adjacent new energy microgrid subsystems. The new energy module generates electrical energy through new energy and stores the generated electrical energy at the same time;

[0008] Build a regulation module. The regulation module distributes electrical energy between two adjacent new energy microgrid subsystems, and when the electricity demand cannot be met, the regulation module controls the additional energy storage module in the new energy microgrid subsystem to discharge. The regulation module also continues to control the load module in the new energy microgrid subsystem to receive the required electrical energy from the traditional power grid subsystem when the electricity demand still cannot be met.

[0009] As a preferred technical solution of the present invention, before the regulation module distributes electrical energy between two adjacent new energy microgrid subsystems, the regulation module also sets a level value for each of the two adjacent new energy microgrid subsystems respectively.

[0010] As a preferred technical solution of the present invention, the regulation module distributes electrical energy between two adjacent new energy microgrid subsystems, including the following steps:

[0011] In two adjacent new energy microgrid subsystems, regard the new energy microgrid subsystem with the larger corresponding level value as the first subsystem, and at the same time regard the new energy microgrid subsystem with the smaller corresponding level value as the second subsystem;

[0012] When the electric quantity stored in the energy storage module in the first subsystem is less than or equal to the first electric quantity threshold, and the electric quantity stored in the energy storage module in the second subsystem is greater than the second electric quantity threshold, the regulation module controls the new energy module to deliver electrical energy to the first subsystem.

[0013] As a preferred technical solution of the present invention, the regulation module distributes electrical energy between two adjacent new energy microgrid subsystems, and also includes the following steps:

[0014] In two adjacent new - energy micro - grid subsystems, the new - energy micro - grid subsystem with the larger corresponding level value is regarded as the first subsystem, and at the same time, the new - energy micro - grid subsystem with the smaller corresponding level value is regarded as the second subsystem;

[0015] When the electric quantity stored in the energy - storage module in the first subsystem is greater than the first electric - quantity threshold, and at the same time, the electric quantity stored in the energy - storage module in the second subsystem is less than or equal to the second electric - quantity threshold, the regulation module controls the new - energy module to deliver a preset share of electric energy to the first subsystem and deliver the remaining share of electric energy to the second subsystem.

[0016] As a preferred technical solution of the present invention, when the regulation module distributes electric energy between two adjacent new - energy micro - grid subsystems, it further includes the following steps:

[0017] In two adjacent new - energy micro - grid subsystems, the new - energy micro - grid subsystem with the larger corresponding level value is regarded as the first subsystem, and at the same time, the new - energy micro - grid subsystem with the smaller corresponding level value is regarded as the second subsystem;

[0018] When the electric quantity stored in the energy - storage module in the first subsystem is greater than the first electric - quantity threshold, and at the same time, the electric quantity stored in the energy - storage module in the second subsystem is greater than the second electric - quantity threshold, the regulation module controls the new - energy module to perform a charging process.

[0019] As a preferred technical solution of the present invention, when the regulation module distributes electric energy between two adjacent new - energy micro - grid subsystems, it further includes the following steps:

[0020] In two adjacent new - energy micro - grid subsystems, the new - energy micro - grid subsystem with the larger corresponding level value is regarded as the first subsystem, and at the same time, the new - energy micro - grid subsystem with the smaller corresponding level value is regarded as the second subsystem;

[0021] When the electric quantity stored in the energy - storage module in the first subsystem is less than or equal to the first electric - quantity threshold, and at the same time, the electric quantity stored in the energy - storage module in the second subsystem is less than or equal to the second electric - quantity threshold, the regulation module controls the new - energy module to deliver electric energy to the first subsystem.

[0022] As a preferred technical solution of the present invention, the first electric - quantity threshold and the second electric - quantity threshold are calculated based on the past power consumption of the load module in the corresponding new - energy micro - grid subsystem.

[0023] As a preferred technical solution of the present invention, before the regulation module controls the additional energy storage module in the new energy microgrid subsystem to perform a discharging process, the regulation module determines the available power of the additional energy storage module on the corresponding date.

[0024] As a preferred technical solution of the present invention, the regulation module determines the available power of the additional energy storage module on the corresponding date, including the following steps:

[0025] The regulation module stores the first travel data corresponding to the additional energy storage module within a preset relatively long past period, and the second travel data corresponding to the additional energy storage module within a preset relatively short recent period, and the regulation module calculates the average value of the first travel data on the same date to obtain the first mean data, and the average value of the second travel data on the same date to obtain the second mean data;

[0026] Calculate the sum of the differences between the second mean data on the corresponding date and the first mean data and the second mean data on the corresponding date with a preset ratio to obtain the estimated travel data on the corresponding date;

[0027] Calculate the power consumption of the additional energy storage module on the corresponding date according to the estimated travel data on the corresponding date, and use the stored power of the additional energy storage module on the corresponding date minus the power consumption of the additional energy storage module on the corresponding date to obtain the available power of the additional energy storage module on the corresponding date.

[0028] The present invention also provides a new energy distribution network regulation system based on flexible load collaboration, mainly including the following subsystems and modules:

[0029] A new energy microgrid subsystem, including a power generation module, an energy storage module, an additional energy storage module, and a load module. Among them, the power generation module is used to generate electric energy relying on new energy, the energy storage module is used to store the generated electric energy, the additional energy storage module is used to store electric energy through the energy storage device of an electric vehicle, and the load module is composed of electrical equipment and is used to consume the electric energy stored in the energy storage module and the additional energy storage module;

[0030] A traditional power grid subsystem, used to connect with different new energy microgrid subsystems, and deliver electric energy to the new energy microgrid subsystem when the power consumption demand of the new energy microgrid subsystem still cannot be met;

[0031] A new energy module, generates electric energy through new energy and stores the generated electric energy at the same time, and is used to deliver electric energy to two adjacent new energy microgrid subsystems geographically;

[0032] A regulation module is used for power distribution between two adjacent new - energy micro - grid subsystems, and for controlling the additional energy - storage module in the new - energy micro - grid subsystem to discharge when the power demand cannot be met, and for continuing to control the load module in the new - energy micro - grid subsystem to receive the required power from the traditional power - grid subsystem when the power demand still cannot be met.

[0033] Compared with the prior art, the beneficial effects of the present invention are at least as follows:

[0034] In the present invention, first, different new - energy micro - grid subsystems are established. The new - energy micro - grid subsystem includes a power - generation module, an energy - storage module, an additional energy - storage module, and a load module. Second, different new - energy micro - grid subsystems are connected to the traditional power - grid subsystem, and different new - energy micro - grid subsystems adjacent in geographical location are determined. A new - energy module is constructed between two adjacent new - energy micro - grid subsystems. The new - energy module generates electric energy and stores the generated electric energy. Finally, the regulation module distributes electric energy between two adjacent new - energy micro - grid subsystems. When the power demand cannot be met, the regulation module controls the additional energy - storage module in the new - energy micro - grid subsystem to discharge. When the power demand still cannot be met, the regulation module continues to control the load module in the new - energy micro - grid subsystem to receive the required power from the traditional power - grid subsystem. The present invention can reduce the power dependence of the new - energy micro - grid subsystem on the traditional power - grid subsystem and improve the operation efficiency of the power system. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a flowchart of the steps of the new - energy power - distribution network regulation method based on flexible load collaboration of the present invention;

[0036] Figure 2 It is a composition structure diagram of the new - energy power - distribution network regulation system based on flexible load collaboration of the present invention;

[0037] Figure 3 It is a composition structure diagram of the new - energy micro - grid subsystem of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0038] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0039] It is understood that the terms "first", "second", etc. used in this application may be used herein to describe various components, but unless otherwise specified, these components are not limited by these terms. These terms are only used to distinguish a first component from another component. For example, without departing from the scope of this application, the first xx script may be referred to as the second xx script, and similarly, the second xx script may be referred to as the first xx script.

[0040] The present invention provides a new energy distribution network regulation method based on flexible load coordination as Figure 1 shown, which is mainly implemented by performing the following steps:

[0041] Step 1: Establish different new energy microgrid subsystems. The new energy microgrid subsystems include a power generation module, an energy storage module, an additional energy storage module, and a load module. The power generation module generates electric energy relying on new energy, and the generated electric energy is stored in the energy storage module. The additional energy storage module includes the energy storage device of an electric vehicle. The load module consists of electrical equipment that consumes the electric energy stored in the energy storage module and the additional energy storage module.

[0042] Step 2: Connect different new energy microgrid subsystems to the traditional power grid subsystem. The electric energy of the traditional power grid subsystem is supplied by a power supplier, and different new energy microgrid subsystems that are adjacent geographically are determined. An energy module is constructed between two adjacent new energy microgrid subsystems. The energy module generates electric energy through new energy and stores the generated electric energy at the same time.

[0043] Step 3: Construct a regulation module. The regulation module distributes electric energy between two adjacent new energy microgrid subsystems. When the power demand cannot be met, the regulation module controls the additional energy storage module in the new energy microgrid subsystem to discharge. When the power demand still cannot be met, the regulation module continues to control the load module in the new energy microgrid subsystem to receive the required electric energy from the traditional power grid subsystem.

[0044] Specifically, the new energy microgrid subsystems in the prior art can generate electric energy and consume the generated electric energy at the same time. If different new energy microgrid subsystems can be self-sufficient, then the contradiction between power supply and demand can be greatly improved, and the operation efficiency of the power system can be improved. Due to the instability of new energy, the new energy microgrid subsystems often need to be connected to the traditional power grid subsystem to ensure the power supply stability of the new energy microgrid subsystems. If the new energy microgrid subsystems rely too much on the traditional power grid subsystem, then the power supply pressure of the traditional power grid subsystem will be increased. To solve this technical problem, the above steps 1 to 3 are proposed.

[0045] First, in step 1, different new energy microgrid subsystems are established. The new energy microgrid subsystem includes a power generation module, an energy storage module, an additional energy storage module, and a load module. Among them, the power generation module generates electric energy relying on new energy, the energy storage module stores the generated electric energy and supplies power to the load module, the additional energy storage module can be an energy storage device for electric vehicles or supply power to the load module, and the load module can be an electrical device that consumes the electric energy stored in the energy storage module and the additional energy storage module. It should be noted that both the new energy microgrid subsystem and the additional energy storage module in the new energy microgrid subsystem are flexible loads, and the regulation of flexible loads is one of the important means to alleviate the contradiction between the power supply and demand sides. Secondly, in step 2, different new energy microgrid subsystems are connected to the traditional power grid subsystem. Among them, the electric energy of the traditional power grid subsystem is supplied by a power supplier. In addition, different new energy microgrid subsystems that are adjacent geographically are determined, and a new energy module is constructed between two adjacent new energy microgrid subsystems to reduce the construction cost and ensure a lower transmission cost when the new energy module transmits electric energy to the two adjacent new energy microgrid subsystems. The new energy module generates electric energy through new energy and stores the generated electric energy at the same time. Finally, in step 3, the regulation module distributes electric energy between two adjacent new energy microgrid subsystems. The electric energy may be distributed to both new energy microgrid subsystems at the same time or to one of the two new energy microgrid subsystems. And when the power demand cannot be met, here it means that after the power distribution, the power demand of the load module in the new energy microgrid subsystem cannot be met either. The regulation module controls the additional energy storage module in the new energy microgrid subsystem to discharge, that is, to make the load module in the new energy microgrid subsystem consume the electric energy stored in the additional energy storage module. If after the discharge process, the power demand of the load module in the new energy microgrid subsystem still cannot be met, that is, when the power demand still cannot be met, the regulation module continues to control the load module in the new energy microgrid subsystem to receive the required electric energy from the traditional power grid subsystem. Through the above method, the new energy microgrid subsystem can rely on the traditional power grid subsystem as little as possible, so as to improve the contradiction between power supply and demand while not causing too much pressure on the traditional power grid subsystem.

[0046] Further, before the regulation module distributes electric energy between two adjacent new energy microgrid subsystems, the regulation module also sets level values for the two adjacent new energy microgrid subsystems respectively.

[0047] Specifically, the level value can be set according to the occupied area scale of the new energy microgrid subsystem. The larger the occupied area scale, the larger the corresponding level value. It can also be set according to the number of electrical equipment included in the load module in the new energy microgrid subsystem. The more electrical equipment, the larger the corresponding level value. It can also be set according to the importance degree of the load module in the new energy microgrid subsystem. The higher the importance degree, the larger the corresponding level value.

[0048] Furthermore, the regulation module conducts power distribution between two adjacent new energy microgrid subsystems, including the following steps:

[0049] Step 1: Among two adjacent new energy microgrid subsystems, regard the new energy microgrid subsystem with a larger corresponding level value as the first subsystem, and at the same time regard the new energy microgrid subsystem with a smaller corresponding level value as the second subsystem;

[0050] Step 2: When the electricity stored in the energy storage module in the first subsystem is less than or equal to the first electricity threshold, and at the same time the electricity stored in the energy storage module in the second subsystem is greater than the second electricity threshold, the regulation module controls the new energy module to deliver electric energy to the first subsystem;

[0051] Furthermore, the first electricity threshold and the second electricity threshold are calculated based on the past power consumption of the load module in the corresponding new energy microgrid subsystem.

[0052] Specifically, the regulation module controls the new energy module to distribute electric energy to two adjacent new energy microgrid subsystems, aiming to reduce the chance for the new energy microgrid subsystems to receive electric energy from the traditional power grid subsystem. Here, the first case of electric energy distribution is introduced. First, among two adjacent new energy microgrid subsystems, the new energy microgrid subsystem with a larger corresponding level value is regarded as the first subsystem, and the new energy microgrid subsystem with a smaller corresponding level value is regarded as the second subsystem. Second, if the electric energy stored in the energy storage module in the first subsystem is less than or equal to the first electric energy threshold, and the electric energy stored in the energy storage module in the second subsystem is greater than the second electric energy threshold, the regulation module controls the new energy module to deliver electric energy to the first subsystem. Among them, the electric energy stored in the energy storage module in the first subsystem, the electric energy stored in the energy storage module in the second subsystem, the first electric energy threshold, and the second electric energy threshold all correspond to a specific date. The first electric energy threshold and the second electric energy threshold are the estimated power consumption of the specific date based on the past power consumption of the load module in the corresponding new energy microgrid subsystem. For example, the average power consumption of the load module in the first subsystem in the past 30 days is calculated as the first electric energy threshold. At this time, if the power consumption demand of the first subsystem has been met, the regulation module controls the new energy module to continue storing the remaining electric energy because the power consumption demand of the second subsystem has also been met. The remaining electric energy refers to the part of the total electric energy stored in the new energy module after subtracting the electric energy delivered to the first subsystem. The electric energy delivered to the first subsystem can be more than the electric energy required by the first subsystem. In the case where the total electric energy stored in the new energy module is not enough to meet the power consumption demand of the first subsystem, the above electric energy distribution method can reduce the electric energy received by the first subsystem from the traditional power grid.

[0053] Further, when the regulation module distributes electric energy between two adjacent new energy microgrid subsystems, the following steps are also included:

[0054] Step 1: Among two adjacent new energy microgrid subsystems, the new energy microgrid subsystem with a larger corresponding level value is regarded as the first subsystem, and at the same time, the new energy microgrid subsystem with a smaller corresponding level value is regarded as the second subsystem;

[0055] Step 2: When the electric energy stored in the energy storage module in the first subsystem is greater than the first electric energy threshold, and at the same time, the electric energy stored in the energy storage module in the second subsystem is less than or equal to the second electric energy threshold, the regulation module controls the new energy module to deliver a preset share of electric energy to the first subsystem and deliver the remaining share of electric energy to the second subsystem.

[0056] Specifically, the second case where the regulation module controls the new energy module to distribute electric energy to two adjacent new energy microgrid subsystems is introduced here. First, in two adjacent new energy microgrid subsystems, the new energy microgrid subsystem with a larger corresponding level value is regarded as the first subsystem, and the new energy microgrid subsystem with a smaller corresponding level value is regarded as the second subsystem. Secondly, if the electric energy stored in the energy storage module in the first subsystem is greater than the first electric energy threshold, and the electric energy stored in the energy storage module in the second subsystem is less than or equal to the second electric energy threshold, since the first subsystem has a larger corresponding level value, the regulation module controls the new energy module to first deliver a preset share of electric energy to the first subsystem, which can prevent the sudden increase in the number of electrical equipment in the first subsystem or the sudden increase in the power consumption of the electrical equipment in the first subsystem, and improve the power supply stability of the first subsystem. Then, the remaining share of electric energy is delivered to the second subsystem. The preset share is set according to the total electric energy stored in the new energy module and the electric energy required by the second subsystem. For example, if the total electric energy stored in the new energy module is 1000 kWh and the electric energy required by the second subsystem is 450 kWh, then the preset share is set to 3 / 5 or 1 / 2, so as to relieve the power consumption pressure of the second subsystem as much as possible, reduce the electric energy received by the second subsystem from the traditional power grid subsystem, or reduce the chance of the second subsystem receiving electric energy from the traditional power grid subsystem.

[0057] Furthermore, when the regulation module distributes electric energy between two adjacent new energy microgrid subsystems, it further includes the following steps:

[0058] Step 1: In two adjacent new energy microgrid subsystems, the new energy microgrid subsystem with a larger corresponding level value is regarded as the first subsystem, and at the same time, the new energy microgrid subsystem with a smaller corresponding level value is regarded as the second subsystem;

[0059] Step 2: When the electric energy stored in the energy storage module in the first subsystem is greater than the first electric energy threshold and the electric energy stored in the energy storage module in the second subsystem is greater than the second electric energy threshold, the regulation module controls the new energy module to perform a charging process.

[0060] Specifically, the third case where the regulation module controls the new energy module to distribute electric energy to two adjacent new energy microgrid subsystems is introduced here. First, among the two adjacent new energy microgrid subsystems, the new energy microgrid subsystem with the larger corresponding level value is regarded as the first subsystem, and the new energy microgrid subsystem with the smaller corresponding level value is regarded as the second subsystem. Second, if the electric quantity stored in the energy storage module in the first subsystem is greater than the first electric quantity threshold, and the electric quantity stored in the energy storage module in the second subsystem is also greater than the second electric quantity threshold, since the electricity consumption demands of both the first subsystem and the second subsystem have been met, electric energy transmission to the first subsystem and the second subsystem can be stopped at this time, and the regulation module controls the new energy module to perform charging processing, that is, to make the new energy module continue to store more electric energy produced by new energy. To further improve the power supply reliability of the first subsystem, the regulation module can also control the new energy module to transmit a certain amount of electric energy to the first subsystem.

[0061] Further, the regulation module distributes electric energy between two adjacent new energy microgrid subsystems, including the following steps:

[0062] Step 1: Among the two adjacent new energy microgrid subsystems, the new energy microgrid subsystem with the larger corresponding level value is regarded as the first subsystem, and at the same time, the new energy microgrid subsystem with the smaller corresponding level value is regarded as the second subsystem;

[0063] Step 2: When the electric quantity stored in the energy storage module in the first subsystem is less than or equal to the first electric quantity threshold, and at the same time, the electric quantity stored in the energy storage module in the second subsystem is less than or equal to the second electric quantity threshold, the regulation module controls the new energy module to transmit electric energy to the first subsystem.

[0064] Specifically, here, the fourth case where the regulation module controls the new energy module to distribute electric energy to two adjacent new energy microgrid subsystems is introduced. First, among the two adjacent new energy microgrid subsystems, the new energy microgrid subsystem with the larger corresponding level value is regarded as the first subsystem, and the new energy microgrid subsystem with the smaller corresponding level value is regarded as the second subsystem. Secondly, if the electric quantity stored in the energy storage module in the first subsystem is less than or equal to the first electric quantity threshold, and the electric quantity stored in the energy storage module in the second subsystem is also less than or equal to the second electric quantity threshold, the regulation module controls the new energy module to deliver electric energy to the first subsystem. After the power consumption demand of the first subsystem is met, the regulation module can control the new energy module to deliver the remaining electric energy to the second subsystem. The remaining electric energy refers to the partial electric energy obtained by subtracting the electric energy delivered to the first subsystem from the total electric energy stored in the new energy module. The electric energy delivered to the first subsystem can be the electric energy required by the first subsystem. This is done to relieve the power consumption pressure of the second subsystem as much as possible. When the total electric energy stored in the new energy module is not enough to meet the power consumption demand of the first subsystem, the new energy module does not deliver electric energy to the second subsystem, aiming to give priority to ensuring the power supply stability of the first subsystem.

[0065] Further, before the regulation module controls the additional energy storage module in the new energy microgrid subsystem to discharge, the regulation module determines the available electric quantity of the additional energy storage module on the corresponding date;

[0066] Further, the regulation module determines the available electric quantity of the additional energy storage module on the corresponding date, including the following steps:

[0067] Step 1: The regulation module stores the first travel data corresponding to the additional energy storage module in a preset long past period and the second travel data corresponding to the additional energy storage module in a preset short recent period, and the regulation module calculates the average value of the first travel data on the same date to obtain the first average data, and the average value of the second travel data on the same date to obtain the second average data;

[0068] Step 2: Calculate the sum of the differences between the second average data on the corresponding date and the first average data and the second average data on the corresponding date at a preset ratio to obtain the estimated travel data on the corresponding date;

[0069] Step 3: Calculate the consumed electric quantity of the additional energy storage module on the corresponding date according to the estimated travel data on the corresponding date, and use the stored electric quantity of the additional energy storage module on the corresponding date minus the consumed electric quantity of the additional energy storage module on the corresponding date to obtain the available electric quantity of the additional energy storage module on the corresponding date.

[0070] Specifically, after the regulation module controls the new energy module to distribute electric energy to two adjacent new energy microgrid subsystems, if the electricity demand of the new energy microgrid subsystem is still not met, the load module in the new energy microgrid subsystem can still receive electric energy from the corresponding additional energy storage module. The additional energy storage module can be the energy storage device of an electric vehicle. Since the additional energy storage module must reserve a certain amount of electricity to ensure the travel of the electric vehicle, before the regulation module controls the additional energy storage module in the new energy microgrid subsystem to discharge, the regulation module needs to determine the available electricity of the additional energy storage module on the corresponding date, that is, the dischargeable amount of the additional energy storage module. Here, the corresponding date and the above-mentioned specific date refer to the same day.

[0071] Describe the process of the regulation module determining the available electricity of the additional energy storage module on the corresponding date. In step 1, the regulation module stores the first travel data corresponding to the additional energy storage module in a preset long past time period, and the second travel data corresponding to the additional energy storage module in a preset recent short time period. The first travel data in the preset long past time period can be the travel data of the corresponding electric vehicle every day in the past five years, and the second travel data in the preset recent short time period can be the travel data of the corresponding electric vehicle every day in the past three months. The travel data refers to the distance data of the electric vehicle's travel. And the regulation module calculates the average value of the first travel data on the same date to obtain the first average value data, and calculates the average value of the second travel data on the same date to obtain the second average value data. For example, the regulation module calculates the average value of the travel data for each date from Monday to Sunday to obtain the first average value data and the second average value data. In step 2, the regulation module first calculates the difference between the first average value data on the corresponding date and the second average value data on the corresponding date, and then calculates the sum of the second average value data on the corresponding date and a preset ratio of this difference, so as to obtain the estimated travel data on the corresponding date. The preset ratio is set according to the actual application situation. For example, the preset ratio is 1 / 2. In step 3, calculate the power consumption of the additional energy storage module on the corresponding date according to the estimated travel data on the corresponding date. It is easy to calculate through the existing technology and will not be elaborated here. Then, subtract the power consumption of the additional energy storage module on the corresponding date from the stored electricity of the additional energy storage module on the corresponding date to obtain the available electricity of the additional energy storage module on the corresponding date. Through the above method, the available electricity of the additional energy storage module can be quickly estimated without affecting the normal travel of the corresponding electric vehicle. After obtaining the available electricity of the additional energy storage module, it is possible to continue to judge whether the electricity demand of the new energy microgrid subsystem can be met. In the case where it is still not met, a plan to receive electric energy from the traditional power grid subsystem can be formulated in advance to avoid causing instantaneous power consumption pressure on the traditional power grid subsystem.

[0072] Refer to Figure 2 andFigure 3 As shown in Figure 3 , the present invention also provides a new energy distribution network regulation system based on flexible load coordination, including a new energy microgrid subsystem, a traditional power grid subsystem, a new energy module, and a regulation module, which is used to implement the new energy distribution network regulation method based on flexible load coordination described above.

[0073] Specifically, the functions of each subsystem and module are described as follows:

[0074] The new energy microgrid subsystem includes a power generation module, an energy storage module, an additional energy storage module, and a load module. Among them, the power generation module is used to generate electric energy relying on new energy, the energy storage module is used to store the generated electric energy, the additional energy storage module is used to store electric energy through the energy storage device of electric vehicles, and the load module is composed of electrical equipment and is used to consume the electric energy stored in the energy storage module and the additional energy storage module;

[0075] The traditional power grid subsystem is used to connect with different new energy microgrid subsystems and supply electric energy to the new energy microgrid subsystem when the power consumption demand of the new energy microgrid subsystem still cannot be met.

[0076] The new energy module generates electric energy through new energy and stores the generated electric energy at the same time, and is used to supply electric energy to two adjacent new energy microgrid subsystems geographically.

[0077] The regulation module is used to distribute electric energy between two adjacent new energy microgrid subsystems, and is also used to control the additional energy storage module in the new energy microgrid subsystem to discharge when the power consumption demand cannot be met, and is further used to continue to control the load module in the new energy microgrid subsystem to receive the required electric energy from the traditional power grid subsystem when the power consumption demand still cannot be met.

[0078] It should be understood that although the steps in the flowcharts of the embodiments of the present invention are shown in sequence according to the indication of the arrows, these steps do not necessarily need to be executed in the order indicated by the arrows. Unless there is a clear indication in this article, the execution of these steps has no strict order limit, and these steps can be executed in other orders. Moreover, at least a part of the steps in each embodiment may include multiple sub-steps or multiple stages. These sub-steps or stages do not necessarily need to be executed at the same moment, but can be executed at different moments. The execution order of these sub-steps or stages is not necessarily sequential either, but can be executed alternately or in turn with at least a part of other steps or sub-steps or stages of other steps.

[0079] Those of ordinary skill in the art can understand that all or part of the processes of implementing the methods in the above embodiments can be completed by instructing relevant hardware through a computer program. The above program can be stored in a non-volatile computer-readable storage medium. When the program is executed, it can include the processes of the embodiments of the above methods. Among them, any reference to a memory, storage, database, or other medium used in the various embodiments provided in the present application can include non-volatile and / or volatile memories. Non-volatile memories can include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), or flash memory. Volatile memories can include random access memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in various forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchronous link (Synchlink) DRAM (SLDRAM), Rambus direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and Rambus dynamic RAM (RDRAM), etc.

[0080] The technical features of the above embodiments can be combined arbitrarily. For the sake of concise description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0081] The above embodiments only represent several implementation manners of the present invention. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the invention patent of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the invention patent of the present invention should be subject to the appended claims.

[0082] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A new energy distribution network regulation method based on flexible load coordination, characterized in that It includes establishing different new energy microgrid subsystems, including a power generation module, an energy storage module, an additional energy storage module, and a load module. The power generation module generates electric energy relying on new energy, and the generated electric energy is stored in the energy storage module. The additional energy storage module includes the energy storage device of an electric vehicle. The load module consists of electrical equipment that consumes the electric energy stored in the energy storage module and the additional energy storage module. Connect different new energy microgrid subsystems to the traditional power grid subsystem. The electric energy of the traditional power grid subsystem is supplied by a power supplier. Identify different new energy microgrid subsystems that are adjacent geographically, and construct a new energy module between two adjacent new energy microgrid subsystems. The new energy module generates electric energy through new energy and stores the generated electric energy. Construct a regulation module to distribute electric energy between two adjacent new energy microgrid subsystems. This includes, among two adjacent new energy microgrid subsystems, regarding the new energy microgrid subsystem with a larger corresponding level value as the first subsystem and the new energy microgrid subsystem with a smaller corresponding level value as the second subsystem. When the electric energy stored in the energy storage module in the first subsystem is less than or equal to a first electric energy threshold and the electric energy stored in the energy storage module in the second subsystem is greater than a second electric energy threshold, the regulation module controls the new energy module to deliver electric energy to the first subsystem. When the electric energy stored in the energy storage module in the first subsystem is greater than the first electric energy threshold and the electric energy stored in the energy storage module in the second subsystem is less than or equal to the second electric energy threshold, the regulation module controls the new energy module to deliver a preset share of electric energy to the first subsystem and deliver the remaining share of electric energy to the second subsystem. When the electric energy stored in the energy storage module in the first subsystem is greater than the first electric energy threshold and the electric energy stored in the energy storage module in the second subsystem is greater than the second electric energy threshold, the regulation module controls the new energy module to perform a charging process. When the electric energy stored in the energy storage module in the first subsystem is less than or equal to the first electric energy threshold and the electric energy stored in the energy storage module in the second subsystem is less than or equal to the second electric energy threshold, the regulation module controls the new energy module to deliver electric energy to the first subsystem. When the power demand is not met, the regulation module controls the additional energy storage module in the new energy microgrid subsystem to discharge. When the power demand is still not met, the regulation module further controls the load module in the new energy microgrid subsystem to receive the required electric energy from the traditional power grid subsystem. Before the regulation module distributes electric energy between two adjacent new energy microgrid subsystems, the regulation module also sets level values for the two adjacent new energy microgrid subsystems respectively.

2. The method according to claim 1, characterized in that, The first electric energy threshold and the second electric energy threshold are calculated based on the past power consumption of the load module in the corresponding new energy microgrid subsystem.

3. The method according to claim 2, wherein Before the regulation module controls the additional energy storage module in the new energy microgrid subsystem to discharge, the regulation module determines the available electric energy of the additional energy storage module on the corresponding date.

4. The method according to claim 3, wherein The regulation module determines the available electric energy of the additional energy storage module on the corresponding date, including the following steps: The control module stores the first travel data corresponding to the additional energy storage module in a preset long past period and the second travel data corresponding to the additional energy storage module in a preset recent short period. The control module calculates the average value of the first travel data on the same date to obtain the first mean data, and the average value of the second travel data on the same date to obtain the second mean data; Calculate the sum of the differences between the second mean data on the corresponding date and the first mean data on the corresponding date and the second mean data on the corresponding date at a preset ratio to obtain the estimated travel data on the corresponding date; Calculate the power consumption of the additional energy storage module on the corresponding date according to the estimated travel data on the corresponding date, and use the stored power of the additional energy storage module on the corresponding date minus the power consumption of the additional energy storage module on the corresponding date to obtain the available power of the additional energy storage module on the corresponding date.

5. A new energy distribution network regulation system based on flexible load coordination, which is used to implement the method of any one of claims 1-4, is characterized in that It includes the following subsystems and modules: The new energy microgrid subsystem includes a power generation module, an energy storage module, an additional energy storage module, and a load module. Among them, the power generation module is used to generate electric energy relying on new energy, the energy storage module is used to store the generated electric energy, the additional energy storage module is used to store electric energy through the energy storage device of the electric vehicle, and the load module is composed of electrical equipment and is used to consume the electric energy stored in the energy storage module and the additional energy storage module; The traditional power grid subsystem is used to connect with different new energy microgrid subsystems and deliver electric energy to the new energy microgrid subsystem when the power consumption demand of the new energy microgrid subsystem is still not satisfied; The new energy module generates electric energy through new energy and stores the generated electric energy at the same time, and is used to deliver electric energy to two adjacent new energy microgrid subsystems geographically; The control module is used to distribute electric energy between two adjacent new energy microgrid subsystems, control the additional energy storage module in the new energy microgrid subsystem to discharge when the power consumption demand is not satisfied, and continue to control the load module in the new energy microgrid subsystem to receive the required electric energy from the traditional power grid subsystem when the power consumption demand is still not satisfied.

Images