Regulation and control method, device and equipment for accessing distributed power supply and diversified load to power distribution network, and storage medium

Abstract

The invention discloses a regulation and control method, device and equipment for accessing a distributed power supply and a diversified load into a power distribution network, and a storage medium. The method comprises the following steps: acquiring access scheme data of a distributed power supply and a diversified load access power distribution network; performing rationality evaluation on the access scheme data through an access scheme evaluation model to obtain an evaluation result; when the evaluation result is unreasonable, adjusting the access scheme data through an access scheme mathematical model to obtain adjusted access scheme data; and continuing to perform rationality evaluation on the adjusted access scheme data until the evaluation result is reasonable. According to the method, the rationality of the access scheme data is evaluated through the access scheme evaluation model, and the unreasonable access scheme data is adjusted through the access scheme mathematical model, so that the rationality and safety of accessing the distributed power supply and the diversified load into the power distribution network can be improved.

Description

Technical Field

[0001] Embodiments of the present invention relate to the technical field of power distribution networks, and in particular to a control method, device, equipment and storage medium for accessing a distributed power source and diversified loads to a power distribution network. Background Art

[0002] With the continuous development of social economy, the loads in the distribution network are becoming more and more diverse and complex. The access of a large number of distributed power sources and diversified loads to the distribution network has become a trend in the future development of the distribution network. However, when the distributed power sources and diversified loads are connected to the distribution network, there is a lack of evaluation of the overall operation changes of the distribution network, which leads to the impact of the distributed power sources and diversified loads on the normal operation of the distribution network when they are connected to the distribution network, and it is impossible to make timely adjustments according to the unreasonable situation of the access plan.

[0003] The safety and rationality of connecting distributed power sources and diversified loads to distribution networks in the existing technology needs to be improved. Summary of the invention

[0004] The present invention provides a control method, device, equipment and storage medium for connecting distributed power sources and diversified loads to a distribution network, so as to solve the problem that the access scheme for connecting distributed power sources and diversified loads to a distribution network in the prior art cannot respond to unreasonable situations in a timely manner and has low safety.

[0005] According to one aspect of the present invention, a method for controlling the access of distributed power sources and diversified loads to a distribution network is provided, the method comprising:

[0006] Obtain access plan data for distributed power sources and diversified loads to the distribution network;

[0007] Performing a rationality evaluation on the access solution data through an access solution evaluation model to obtain an evaluation result;

[0008] When the evaluation result is unreasonable, adjusting the access solution data through an access solution mathematical model to obtain adjusted access solution data;

[0009] Continue to conduct rationality evaluation on the adjusted access plan data until the evaluation result is reasonable.

[0010] According to another aspect of the present invention, a control device for accessing a distributed power source and a diversified load to a distribution network is provided, the device comprising:

[0011] An acquisition module is used to obtain access plan data of distributed power sources and diversified loads to the distribution network;

[0012] A first evaluation module is used to evaluate the rationality of the access solution data through an access solution evaluation model to obtain an evaluation result;

[0013] An adjustment module, configured to adjust the access scheme data by using an access scheme mathematical model to obtain adjusted access scheme data when the evaluation result is unreasonable;

[0014] The second evaluation module is used to continue to evaluate the rationality of the adjusted access solution data until the evaluation result is reasonable.

[0015] According to another aspect of the present invention, there is provided an electronic device, the electronic device comprising: at least one processor; and

[0016] a memory communicatively connected to the at least one processor; wherein,

[0017] The memory stores a computer program that can be executed by the at least one processor, and the computer program is executed by the at least one processor so that the at least one processor can execute the method for controlling the access of distributed power sources and diversified loads to the distribution network as described in any embodiment of the present invention.

[0018] According to another aspect of the present invention, a computer-readable storage medium is provided, wherein the computer-readable storage medium stores computer instructions, and the computer instructions are used to enable a processor to implement the method for controlling the access of distributed power sources and diversified loads to a distribution network as described in any embodiment of the present invention when executed.

[0019] A control method, device, equipment and storage medium for accessing a distributed power source and diversified loads to a distribution network according to an embodiment of the present invention, the method comprising: obtaining access plan data for accessing the distributed power source and diversified loads to the distribution network; performing a rationality evaluation on the access plan data through an access plan evaluation model to obtain an evaluation result; when the evaluation result is unreasonable, adjusting the access plan data through an access plan mathematical model to obtain adjusted access plan data; continuing to perform a rationality evaluation on the adjusted access plan data until the evaluation result is reasonable. The method performs a rationality evaluation on the access plan data through an access plan evaluation model, and adjusts unreasonable access plan data through an access plan mathematical model, which can improve the rationality and safety of accessing the distributed power source and diversified loads to the distribution network, and solves the problem in the prior art that the access plan for accessing the distributed power source and diversified loads to the distribution network cannot respond to unreasonable situations in a timely manner and has low safety.

[0020] It should be understood that the contents described in this section are not intended to identify the key or important features of the embodiments of the present invention, nor are they intended to limit the scope of the present invention. Other features of the present invention will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 A schematic flow chart of a method for controlling the access of distributed power sources and diversified loads to a distribution network provided in the first embodiment of the present invention;

[0023] Figure 2 A schematic flow chart of a method for controlling the access of distributed power sources and diversified loads to a distribution network provided by an embodiment of the present invention;

[0024] Figure 3 A schematic diagram of the structure of a control device for accessing a distributed power source and diversified loads to a distribution network provided in Embodiment 2 of the present invention;

[0025] Figure 4 Schematic diagram of the structure of an electronic device according to an embodiment of the present invention. DETAILED DESCRIPTION

[0026] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiment of the present invention. Obviously, the described embodiment is only an embodiment of a part of the present invention, rather than all the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work should belong to the scope of protection of the present invention. It should be understood that the various steps recorded in the method implementation of the present invention can be performed in different orders and / or in parallel. In addition, the method implementation may include additional steps and / or omit the steps shown. The scope of the present invention is not limited in this respect.

[0027] The term "including" and its variations used herein are open inclusions, i.e., "including but not limited to". The term "based on" means "based at least in part on". The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments". The relevant definitions of other terms will be given in the following description.

[0028] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, any variations of the terms "including" and "having" are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0029] It should be noted that the modifications of "one" and "plurality" mentioned in the present invention are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise clearly indicated in the context, it should be understood as "one or more".

[0030] The names of the messages or information exchanged between multiple devices in the embodiments of the present invention are only used for illustrative purposes, and are not used to limit the scope of these messages or information.

[0031] Embodiment 1

[0032] Figure 1 A flow chart of a method for controlling the access of distributed power sources and diversified loads to a distribution network provided in Embodiment 1 of the present invention is provided. The method can be applied to evaluating access plans for the access of distributed power sources and diversified loads to a distribution network to obtain an optimal access plan. The method can be executed by a control device for the access of distributed power sources and diversified loads to a distribution network, wherein the device can be implemented by software and / or hardware and is generally integrated on an electronic device. In this embodiment, the electronic device includes but is not limited to: computers and other devices.

[0033] like Figure 1 As shown, a method for controlling the access of distributed power sources and diversified loads to a distribution network provided in Embodiment 1 of the present invention includes the following steps:

[0034] S110. Obtain access plan data for accessing distributed power sources and diversified loads to the distribution network.

[0035] Among them, the distributed power source can be a power source distributed at the user end, connected to a power grid with a voltage level of 35kV and below, and mainly consumed locally. Distributed power sources may include solar energy, natural gas, biomass energy, wind energy, hydropower, hydrogen energy, geothermal energy, ocean energy, comprehensive resource utilization power generation (including coal mine gas power generation) and energy storage. Diversified loads may refer to the fact that in the power system, the power demand of users presents diversified characteristics, including different types of power equipment, different power consumption modes and power consumption times. The distribution network may refer to a power grid that receives electric energy from a transmission network or a regional power plant, and distributes it locally through distribution facilities or distributes it step by step according to voltage to various users. The access plan data may be relevant data of the access plan.

[0036] In this embodiment, when the distributed power sources and diversified loads are connected to the distribution network, it is necessary to evaluate whether the connection plan is reasonable, so the connection plan data of the distributed power sources and diversified loads connected to the distribution network can be obtained.

[0037] In one embodiment, the acquisition of access plan data for the distributed power sources and diversified loads to the distribution network includes: constructing basic constraints of the distribution network based on basic information of the distribution network to be accessed; constructing access constraints of the distribution network based on access information of the distributed power sources and the diversified loads to the distribution network; generating an access plan according to the basic constraints of the distribution network and the access constraints of the distribution network; acquiring access plan data for the distributed power sources and diversified loads to the distribution network through the access plan; wherein the basic information includes the network topology and operating parameters of the distribution network, and the operating parameters include the current signal of the distribution network and the voltage signal of the distribution network; the access information includes the distribution information of the access points of the distributed power sources and diversified loads, the location information of the access points, the current signal of the access points, and the voltage signal of the access points.

[0038] Among them, the basic information of the distribution network may include the network topology and operating parameters of the distribution network, and the operating parameters may include the current signal of the distribution network and the voltage signal of the distribution network. The network topology of the distribution network may be a topological diagram that considers the entire distribution network as a combination of lines and points based on the connection relationship of the distribution electrical components, and the topological connection analysis of the entire network may be performed based on the power nodes, switch nodes, etc. The network topology is the basis for the distribution network to perform state estimation, flow calculation, fault location, isolation and power supply restoration, network reconstruction and other analyses. The access information may include the distribution information of the access points of the distributed power sources and diversified loads, the location information of the access points, the current signal and the voltage signal of the access points. The access point may be the point where the distributed power sources or diversified loads access the distribution network. The distribution information may be the distribution of the access points in the distribution network, and the location information may be the specific location of the access points in the distribution network.

[0039] In this embodiment, the basic constraints of the distribution network can be constructed through the basic information of the distribution network, and the access constraints of the distribution network can be constructed through the access information of the distributed power sources and diversified loads to the distribution network. All constraints in the basic constraints of the distribution network and the access constraints of the distribution network are used as access plan models; one or more access plans can be obtained through the constraints in the access plan model, and an optimal access plan is selected as the current access plan, and the access plan data of the access plan is obtained as the access plan data for the distributed power sources and diversified loads to access the distribution network.

[0040] In this embodiment, the basic constraints of the distribution network may be constraints that the distribution network needs to meet during operation. For example, the basic constraints of the distribution network may include network topology constraints of the distribution network and voltage and current constraints of the distribution network. The access constraints of the distribution network may be constraints that need to be met when distributed power sources and diversified loads are connected to the distribution network. For example, the access constraints of the distribution network may include access point distribution constraints, access point location constraints, and access point voltage and current constraints. The various constraints in this embodiment can be constructed according to actual conditions, and this embodiment does not limit how to construct the constraints. The access plan data may include distribution information of access points, location information of access points, current signals and voltage signals of access points, network topology of the distribution network, and operating parameters, etc., which are not limited in this embodiment.

[0041] S120: Perform a rationality evaluation on the access solution data using an access solution evaluation model to obtain an evaluation result.

[0042] The access scheme evaluation model may be a model for evaluating the rationality of the access scheme. The evaluation result may include rationality and irrationality.

[0043] In this embodiment, the access plan data can be evaluated for rationality through the access plan evaluation model to obtain an evaluation result. When the evaluation result is reasonable, it means that the access plan has met the requirements for the access of distributed power sources and diversified loads to the distribution network. When the evaluation result is unreasonable, it means that the access plan needs to be optimized.

[0044] S130: When the evaluation result is unreasonable, the access solution data is adjusted by using an access solution mathematical model to obtain adjusted access solution data.

[0045] The access scheme mathematical model may be a mathematical model for generating a new access scheme.

[0046] In this embodiment, when the evaluation result is unreasonable, new access solution data needs to be regenerated. At this time, the access solution data can be adjusted through the access solution mathematical model to obtain the adjusted access solution data.

[0047] S140: Continue to perform rationality evaluation on the adjusted access plan data until the evaluation result is reasonable.

[0048] In this embodiment, the adjusted access solution data needs to continue to be evaluated for rationality through the access solution evaluation model until the evaluation result is reasonable, and then the adjustment of the access solution data is completed.

[0049] A control method for accessing a distributed power source and a diversified load to a distribution network provided in a first embodiment of the present invention includes: obtaining access plan data for accessing the distributed power source and the diversified load to the distribution network; performing a rationality evaluation on the access plan data through an access plan evaluation model to obtain an evaluation result; when the evaluation result is unreasonable, adjusting the access plan data through an access plan mathematical model to obtain adjusted access plan data; and continuing to perform a rationality evaluation on the adjusted access plan data until the evaluation result is reasonable. This method performs a rationality evaluation on the access plan data through an access plan evaluation model, and adjusts the unreasonable access plan data through an access plan mathematical model, which can improve the rationality and safety of accessing the distributed power source and the diversified load to the distribution network, and solves the problem in the prior art that the access plan for accessing the distributed power source and the diversified load to the distribution network cannot respond to unreasonable situations in a timely manner and has low safety.

[0050] Based on the above embodiment, a variant embodiment of the above embodiment is proposed. It should be noted that in order to make the description concise, only the differences from the above embodiment are described in the variant embodiment.

[0051] In one embodiment, the construction of the access scheme evaluation model includes: detecting the operating status of the distribution network connected to the distributed power sources and diversified loads, and obtaining the operating status changes of the distribution network under the access scheme information; constructing the access scheme evaluation model based on the operating status changes; wherein the operating status changes include at least the changes in the operating safety of the distribution network, the changes in electric energy loss, and the changes in the quality of electric energy after the distributed power sources and diversified loads are connected to the distribution network.

[0052] Among them, the operating status can be the relevant parameters when the distribution network is in operation. The changes in the operating status can include the changes in the operating safety of the distribution network, the changes in the loss of electric energy, and the changes in the quality of electric energy after the distributed power sources and diversified loads are connected to the distribution network. The changes in operating safety can refer to the changes in the safety of the distribution network during operation. The changes in operating safety can be determined by parameters such as the voltage offset, transformer load rate, line load rate, load rate, voltage qualification rate, power outage frequency and duration, failure rate and equipment temperature of the distribution network. The changes in the loss of electric energy can be the changes in the electric energy consumption and loss generated from the power plant to the customer's electric meter during the transmission of electric energy. The changes in the quality of electric energy can refer to the changes in the quality of electric energy in the power system. The changes in the quality of electric energy can be determined by indicators such as voltage, frequency and waveform.

[0053] In this embodiment, the access scheme evaluation model can be constructed by analyzing the changes in the operation safety, power loss, and power quality of the distribution network after the distributed power sources and diversified loads are connected to the distribution network.

[0054] In one embodiment, the construction of an access scheme evaluation model based on the changes in the operating status includes: constructing a safety assessment constraint through changes in the operating safety of the distribution network; constructing a power loss constraint through changes in the power loss; constructing a power quality constraint through changes in the power quality; and using the safety assessment constraint, the power loss constraint and the power quality constraint as an access scheme evaluation model.

[0055] Among them, the safety assessment constraints may include conditions for constraining the safety of the distribution network, and the safety assessment constraints may be constructed through parameters related to the operational safety changes of the distribution network. For example, the safety assessment constraints may construct one or more constraint conditions based on parameters such as the voltage offset, transformer load rate, line load rate, load rate, voltage qualification rate, power outage frequency and duration, failure rate, and equipment temperature of the distribution network. The power loss constraint may be a condition for constraining the loss of electric energy in the distribution network. The power quality constraint may be a condition for constraining the quality of electric energy in the distribution network, and the power quality constraint may be constructed through parameters such as voltage, frequency, and waveform in the distribution network.

[0056] In this embodiment, the changes of the distribution network, such as the changes in operation safety, the changes in power loss and the changes in power quality, can be obtained, and the safety assessment constraints, power loss constraints and power quality constraints are respectively constructed through these changes, and the safety assessment constraints, power loss constraints and power quality constraints are used as access scheme evaluation models. By constructing a variety of different constraints, it is possible to judge whether the access scheme data meets this requirement when evaluating the rationality of the access scheme data.

[0057] In one embodiment, the construction of the mathematical model of the access scheme includes: constructing a mathematical model of the access scheme based on the access scheme evaluation model and the distribution network parameters after access; wherein the distribution network parameters after access include at least the network topology and line loss of the distribution network after the distributed power sources and diversified loads are connected to the distribution network.

[0058] Among them, the distribution network parameters after access may be the relevant parameters of the distribution network after the distributed power sources and diversified loads are connected to the distribution network. For example, the distribution network parameters after access may include the network topology and line loss of the distribution network after the distributed power sources and diversified loads are connected to the distribution network. Line loss may refer to line loss, which refers to the phenomenon that electric energy is lost during transmission in the transmission and distribution lines due to resistance heat loss, induced electromagnetic wave loss, and capacitive current loss caused by the current passing through the conductor.

[0059] In this embodiment, the access solution mathematical model for generating the access solution can be constructed by the access solution evaluation model and the distribution network parameters after access. Exemplarily, the access solution mathematical model can also be constructed based on the distribution network parameters after access and combined with the constraints in the access solution evaluation model.

[0060] In one embodiment, the mathematical model for generating an access plan based on the access plan evaluation model and the distribution network parameters after access includes: generating network topology constraints and line loss constraints based on the network topology and line loss of the distribution network respectively; and combining the constraints in the access plan evaluation model, as well as the network topology constraints and the line loss constraints to construct a mathematical model for generating an access plan.

[0061] In this embodiment, the network topology constraint and the line loss constraint can be used to constrain the network topology and line loss of the distribution network after the distributed power source and the diversified load are connected. By constructing the network topology constraint and the line loss constraint, combined with the constraints in the access scheme evaluation model, the access scheme mathematical model can be constructed.

[0062] In one embodiment, the access scheme is adjusted through the access scheme mathematical model to obtain an adjusted access scheme, including: under the constraint condition that the normal operation of the distribution network is met, the access scheme mathematical model is solved with the goal of minimizing the access cost or minimizing the power loss to obtain the adjusted access scheme.

[0063] Among them, minimizing the access cost can refer to the minimum cost of the distribution network operation after the distributed power sources and diversified loads are connected to the distribution network. Minimizing power loss can refer to the minimum power loss during the operation of the distribution network after the distributed power sources and diversified loads are connected to the distribution network.

[0064] In this embodiment, access cost constraints and power loss constraints can also be constructed. Under the conditions that all constraints in the mathematical model of the access plan to ensure the normal operation of the distribution network are met, the mathematical model of the access plan is solved with the goal of minimizing the access cost or minimizing the power loss. The access plan corresponding to the minimized access cost or minimized power loss obtained by the solution is used as the adjusted access plan.

[0065] The embodiments of the present invention provide several specific implementation methods based on the technical solutions of the above embodiments.

[0066] As a specific implementation method of this embodiment, Figure 2 A flow chart of a method for controlling the access of distributed power sources and diversified loads to a distribution network provided by an embodiment of the present invention is shown as follows: Figure 2 As shown, the following steps are included:

[0067] Step 1: Obtain basic information data of the distribution network to be connected to the distributed power source and diversified load;

[0068] Step 2: Obtain the access plan for the distributed power source and diversified load to the distribution network, and obtain the access information data of the distributed power source and diversified load in the distribution network access plan through the access plan;

[0069] Step 3: Monitor the operating status of the distribution network connected to the distributed power source and the diversified load, and obtain the operating status changes of the distribution network connected to the distributed power source and the diversified load in real time;

[0070] Step 4: Establish an access scheme evaluation model for distributed power sources and diversified loads;

[0071] Step 5: Construct a mathematical model of the access scheme for the distribution network that accesses distributed generation and diversified loads;

[0072] Step 6: Based on the established access scheme evaluation model of the distributed generation and diversified load access scheme, the access scheme data of the access scheme is used to evaluate the rationality of the operation of the distribution network;

[0073] Step 7: Determine the best access scheme for distributed power sources and diversified loads. After determining the best access scheme for distributed power sources and diversified loads, the performance of the distribution network connected to the optimized distributed power sources and diversified loads in different operating scenarios can be evaluated. If the evaluation result is reasonable, the best optimization scheme is determined. If the evaluation result is unreasonable, the scheme is optimized and adjusted.

[0074] This embodiment evaluates the access plan data and generates new access plan data through the access plan mathematical model when the access plan data is unreasonable, thereby improving the flexibility of access plan adjustment and ensuring the safety of operation of distributed power sources and diversified loads when they are connected to the distribution network.

[0075] Embodiment 2

[0076] Figure 3 A schematic diagram of the structure of a control device for accessing a distributed power source and diversified loads to a distribution network is provided in Embodiment 2 of the present invention. The device can be used to evaluate access plans for accessing a distributed power source and diversified loads to a distribution network to obtain an optimal access plan, wherein the device can be implemented by software and / or hardware and is generally integrated on an electronic device.

[0077] like Figure 3 As shown, the device comprises:

[0078] An acquisition module 210 is used to acquire access plan data of distributed power sources and diversified loads to the distribution network;

[0079] A first evaluation module 220, configured to evaluate the rationality of the access solution data through an access solution evaluation model to obtain an evaluation result;

[0080] An adjustment module 230, configured to adjust the access scheme data by using an access scheme mathematical model to obtain adjusted access scheme data when the evaluation result is unreasonable;

[0081] The second evaluation module 240 is used to continue to evaluate the rationality of the adjusted access solution data until the evaluation result is reasonable.

[0082] The present embodiment provides a control device for accessing a distributed power source and a diversified load to a distribution network, including: an acquisition module for acquiring access plan data for accessing a distributed power source and a diversified load to a distribution network; a first evaluation module for performing a rationality evaluation on the access plan data through an access plan evaluation model to obtain an evaluation result; an adjustment module for adjusting the access plan data through an access plan mathematical model when the evaluation result is unreasonable to obtain adjusted access plan data; and a second evaluation module for continuing to perform a rationality evaluation on the adjusted access plan data until the evaluation result is reasonable. Performing a rationality evaluation on the access plan data through an access plan evaluation model and adjusting unreasonable access plan data through an access plan mathematical model can improve the rationality and safety of accessing distributed power sources and diversified loads to a distribution network, and solves the problem in the prior art that the access plan for accessing distributed power sources and diversified loads to a distribution network cannot respond to unreasonable situations in a timely manner and has low safety.

[0083] Furthermore, the acquisition module 210 is specifically used for:

[0084] Construct basic constraints of the distribution network based on the basic information of the distribution network to be connected;

[0085] Establishing distribution network access constraints based on access information of the distributed power source and the diversified load to the distribution network;

[0086] Generate an access plan according to the distribution network basic constraints and the distribution network access constraints;

[0087] Obtain access plan data for accessing the distributed power source and the diversified load to the distribution network through the access plan;

[0088] Among them, the basic information includes the network topology and operating parameters of the distribution network, and the operating parameters include the current signal and voltage signal of the distribution network; the access information includes the distribution information of the access points of distributed power sources and diversified loads, the location information of the access points, the current signal and voltage signal of the access points.

[0089] Furthermore, the construction of the access solution evaluation model includes:

[0090] Detecting the operating status of the distribution network connected to the distributed power source and the diversified load, and obtaining the operating status change of the distribution network under the access scheme information;

[0091] Building an access solution evaluation model based on the running status change;

[0092] The operation status change includes at least the change in the operation safety, the change in the loss of electric energy and the change in the quality of electric energy of the distribution network after the distributed power sources and the diversified loads are connected to the distribution network.

[0093] Furthermore, constructing an access solution evaluation model based on the running state change includes:

[0094] Constructing security assessment constraints through operational security changes of the distribution network;

[0095] Establishing an electric energy loss constraint through the electric energy loss variation;

[0096] Establishing power quality constraints through quality changes of the power;

[0097] The safety assessment constraint, the power loss constraint and the power quality constraint are used as an access solution assessment model.

[0098] Furthermore, the construction of the access scheme mathematical model includes:

[0099] A mathematical model for generating an access plan is constructed based on the access plan evaluation model and the distribution network parameters after access; wherein the distribution network parameters after access include at least the network topology and line loss of the distribution network after the distributed power sources and diversified loads are connected to the distribution network.

[0100] Furthermore, the mathematical model for generating the access solution based on the access solution evaluation model and the distribution network parameters after access includes:

[0101] Generate a network topology constraint and a line loss constraint based on the network topology and line loss of the distribution network respectively;

[0102] A mathematical model for generating an access solution is constructed by combining the constraints in the access solution evaluation model, the network topology constraints and the line loss constraints.

[0103] Furthermore, the adjustment module 230 is specifically used to:

[0104] Under the constraint condition of satisfying the normal operation of the distribution network, with the goal of minimizing the access cost or minimizing the power loss, the mathematical model of the access scheme is solved to obtain an adjusted access scheme.

[0105] The above-mentioned control device for accessing a distributed power source and diversified loads to a distribution network can execute the control method for accessing a distributed power source and diversified loads to a distribution network provided by any embodiment of the present invention, and has functional modules and beneficial effects corresponding to the execution method.

[0106] Embodiment 3

[0107] Figure 4 A schematic diagram of the structure of an electronic device 10 that can be used to implement an embodiment of the present invention is shown. The electronic device is intended to represent various forms of digital computers, such as laptop computers, desktop computers, workstations, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. The electronic device can also represent various forms of mobile devices, such as personal digital processing, cellular phones, smart phones, wearable devices (such as helmets, glasses, watches, etc.) and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely examples and are not intended to limit the implementation of the present invention described and / or required herein.

[0108] like Figure 4As shown, the electronic device 10 includes at least one processor 11, and a memory connected to the at least one processor 11, such as a read-only memory (ROM) 12, a random access memory (RAM) 13, etc., wherein the memory stores a computer program that can be executed by at least one processor, and the processor 11 can perform various appropriate actions and processes according to the computer program stored in the read-only memory (ROM) 12 or the computer program loaded from the storage unit 18 to the random access memory (RAM) 13. In the RAM 13, various programs and data required for the operation of the electronic device 10 can also be stored. The processor 11, the ROM 12, and the RAM 13 are connected to each other through a bus 14. An input / output (I / O) interface 15 is also connected to the bus 14.

[0109] A number of components in the electronic device 10 are connected to the I / O interface 15, including: an input unit 16, such as a keyboard, a mouse, etc.; an output unit 17, such as various types of displays, speakers, etc.; a storage unit 18, such as a disk, an optical disk, etc.; and a communication unit 19, such as a network card, a modem, a wireless communication transceiver, etc. The communication unit 19 allows the electronic device 10 to exchange information / data with other devices through a computer network such as the Internet and / or various telecommunication networks.

[0110] The processor 11 may be a variety of general and / or special processing components with processing and computing capabilities. Some examples of the processor 11 include, but are not limited to, a central processing unit (CPU), a graphics processing unit (GPU), various dedicated artificial intelligence (AI) computing chips, various processors running machine learning model algorithms, a digital signal processor (DSP), and any appropriate processor, controller, microcontroller, etc. The processor 11 executes the various methods and processes described above, such as the control method for accessing the distribution network to distributed power sources and diversified loads.

[0111] In some embodiments, the method for regulating the access of distributed power sources and diversified loads to the distribution network may be implemented as a computer program, which is tangibly contained in a computer-readable storage medium, such as a storage unit 18. In some embodiments, part or all of the computer program may be loaded and / or installed on the electronic device 10 via the ROM 12 and / or the communication unit 19. When the computer program is loaded into the RAM 13 and executed by the processor 11, one or more steps of the method for regulating the access of distributed power sources and diversified loads to the distribution network described above may be performed. Alternatively, in other embodiments, the processor 11 may be configured to execute the method for regulating the access of distributed power sources and diversified loads to the distribution network in any other appropriate manner (e.g., by means of firmware).

[0112] Various implementations of the systems and techniques described above herein can be implemented in digital electronic circuit systems, integrated circuit systems, field programmable gate arrays (FPGAs), application specific integrated circuits (ASICs), application specific standard products (ASSPs), systems on chips (SOCs), load programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various implementations can include: being implemented in one or more computer programs that can be executed and / or interpreted on a programmable system including at least one programmable processor, which can be a special purpose or general purpose programmable processor that can receive data and instructions from a storage system, at least one input device, and at least one output device, and transmit data and instructions to the storage system, the at least one input device, and the at least one output device.

[0113] Computer programs for implementing the methods of the present invention may be written in any combination of one or more programming languages. These computer programs may be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device, so that when the computer program is executed by the processor, the functions / operations specified in the flow chart and / or block diagram are implemented. The computer program may be executed entirely on the machine, partially on the machine, partially on the machine and partially on a remote machine as a stand-alone software package, or entirely on a remote machine or server.

[0114] In the context of the present invention, a computer-readable storage medium may be a tangible medium that may contain or store a computer program for use by or in combination with an instruction execution system, device or equipment. A computer-readable storage medium may include, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, devices or equipment, or any suitable combination of the foregoing. Alternatively, a computer-readable storage medium may be a machine-readable signal medium. A more specific example of a machine-readable storage medium may include an electrical connection based on one or more lines, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

[0115] To provide interaction with a user, the systems and techniques described herein may be implemented on an electronic device having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to the user; and a keyboard and a pointing device (e.g., a mouse or trackball) through which the user can provide input to the electronic device. Other types of devices may also be used to provide interaction with the user; for example, the feedback provided to the user may be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user may be received in any form (including acoustic input, voice input, or tactile input).

[0116] The systems and techniques described herein may be implemented in a computing system that includes backend components (e.g., as a data server), or a computing system that includes middleware components (e.g., an application server), or a computing system that includes frontend components (e.g., a user computer with a graphical user interface or a web browser through which a user can interact with implementations of the systems and techniques described herein), or a computing system that includes any combination of such backend components, middleware components, or frontend components. The components of the system may be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: a local area network (LAN), a wide area network (WAN), a blockchain network, and the Internet.

[0117] A computing system may include a client and a server. The client and the server are generally remote from each other and usually interact through a communication network. The client and server relationship is generated by computer programs running on the corresponding computers and having a client-server relationship with each other. The server may be a cloud server, also known as a cloud computing server or cloud host, which is a host product in the cloud computing service system to solve the defects of difficult management and weak business scalability in traditional physical hosts and VPS services.

[0118] It should be understood that the various forms of processes shown above can be used to reorder, add or delete steps. For example, the steps described in the present invention can be executed in parallel, sequentially or in different orders, as long as the desired results of the technical solution of the present invention can be achieved, and this document does not limit this.

[0119] The above specific implementations do not constitute a limitation on the protection scope of the present invention. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modification, equivalent substitution and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for controlling the access of distributed power sources and diversified loads to a distribution network, characterized in that: The method comprises: Obtain access plan data for distributed power sources and diversified loads to the distribution network; Performing a rationality evaluation on the access solution data through an access solution evaluation model to obtain an evaluation result; When the evaluation result is unreasonable, adjusting the access solution data through an access solution mathematical model to obtain adjusted access solution data; Continue to conduct rationality evaluation on the adjusted access plan data until the evaluation result is reasonable.

2. The method according to claim 1, characterized in that The acquisition of access plan data for accessing the distributed power source and the diversified load to the distribution network includes: Construct basic constraints of the distribution network based on the basic information of the distribution network to be connected; Establishing distribution network access constraints based on access information of the distributed power source and the diversified load to the distribution network; Generate an access plan according to the distribution network basic constraints and the distribution network access constraints; Obtain access plan data for accessing the distributed power source and the diversified load to the distribution network through the access plan; Among them, the basic information includes the network topology and operating parameters of the distribution network, and the operating parameters include the current signal and voltage signal of the distribution network; the access information includes the distribution information of the access points of distributed power sources and diversified loads, the location information of the access points, the current signal and voltage signal of the access points.

3. The method according to claim 1, characterized in that The construction of the access scheme evaluation model includes: Detecting the operating status of the distribution network connected to the distributed power source and the diversified load, and obtaining the operating status change of the distribution network under the access scheme information; Building an access solution evaluation model based on the running status change; The operation status change includes at least the change in the operation safety, the change in the loss of electric energy and the change in the quality of electric energy of the distribution network after the distributed power sources and the diversified loads are connected to the distribution network.

4. The method according to claim 3, characterized in that The constructing of the access solution evaluation model based on the running state change includes: Constructing security assessment constraints through operational security changes of the distribution network; Establishing an electric energy loss constraint through the electric energy loss variation; Establishing power quality constraints through quality changes of the power; The safety assessment constraint, the power loss constraint and the power quality constraint are used as an access solution assessment model.

5. The method according to claim 1, characterized in that The construction of the access scheme mathematical model includes: A mathematical model for generating an access plan is constructed based on the access plan evaluation model and the distribution network parameters after access; wherein the distribution network parameters after access include at least the network topology and line loss of the distribution network after the distributed power sources and diversified loads are connected to the distribution network.

6. The method according to claim 5, characterized in that The mathematical model for generating the access scheme based on the access scheme evaluation model and the distribution network parameters after access includes: Generate a network topology constraint and a line loss constraint based on the network topology and line loss of the distribution network respectively; A mathematical model for generating an access solution is constructed by combining the constraints in the access solution evaluation model, the network topology constraints and the line loss constraints.

7. The method according to claim 1, characterized in that The step of adjusting the access scheme by using the access scheme mathematical model to obtain an adjusted access scheme includes: Under the constraint condition of satisfying the normal operation of the distribution network, with the goal of minimizing the access cost or minimizing the power loss, the mathematical model of the access scheme is solved to obtain an adjusted access scheme.

8. A control device for accessing a distribution network with distributed power sources and diversified loads, characterized in that: The device comprises: An acquisition module is used to obtain access plan data of distributed power sources and diversified loads to the distribution network; A first evaluation module is used to evaluate the rationality of the access solution data through an access solution evaluation model to obtain an evaluation result; An adjustment module, configured to adjust the access scheme data by using an access scheme mathematical model to obtain adjusted access scheme data when the evaluation result is unreasonable; The second evaluation module is used to continue to evaluate the rationality of the adjusted access solution data until the evaluation result is reasonable.

9. An electronic device, characterized in that: The device comprises: at least one processor; and a memory communicatively connected to the at least one processor; wherein, The memory stores a computer program that can be executed by the at least one processor, and the computer program is executed by the at least one processor so that the at least one processor can execute the method for controlling the access of distributed power sources and diversified loads to the distribution network as described in any one of claims 1-7.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer instructions, and the computer instructions are used to enable a processor to implement the method for controlling the access of distributed power sources and diversified loads to a distribution network as described in any one of claims 1 to 7 when executed.

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