CN107846360B - SDN-based energy router and electric energy transmission method - Google Patents
SDN-based energy router and electric energy transmission method Download PDFInfo
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- H—ELECTRICITY
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- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
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- H—ELECTRICITY
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Abstract
The invention provides an SDN-based energy router and an electric energy transmission method, wherein the device comprises: an SDN controller and each functional module; the SDN controller is used for generating a control strategy according to a control strategy requirement preset by an energy packet to be transmitted, and sending the control strategy to the corresponding functional module; the functional module is used for receiving a control strategy sent by the SDN controller, acquiring the control strategy matched with the packet header information of the energy packet to be transmitted in the functional module, and transmitting the energy packet to be transmitted according to the control strategy matched with the packet header information and the packet header information. According to the invention, software definition related concepts, technologies and architectures are introduced in the process of making and executing the control strategy through the SDN controller, so that the unified control and management of each functional module in the energy router are realized, the flexibility and robustness of the operation of the energy router are improved, and the automatic management of the energy router is realized.
Description
Technical Field
The invention belongs to the technical field of network communication, and particularly relates to an SDN-based energy router and an electric energy transmission method.
Background
The energy router is used as wide area or local area interconnection equipment of an energy internet and outlet gateway control equipment of the energy microgrid, has the functions of accessing, transmitting, converting, routing and the like similar to the traditional power equipment, and also has the function of operating and managing the energy microgrid governed by the energy router. The energy router is an important energy infrastructure in the energy Internet, is basic equipment for realizing an energy Internet information physical fusion technology, and provides basic guarantee for the peer-to-peer, sharing, opening and interconnection of energy and information in the energy Internet.
In the prior art, an energy router needs to complete multiple functions of energy transmission, conversion, management and the like, and relates to connection of different types of power equipment ports and different requirements on electric energy quality, so that difficulties and challenges are brought to management and control of the energy router. At present, when a new device is accessed, the transmitted electric energy attribute needs to be manually set according to the transmission format requirement of the new device; different types of power equipment and energy storage equipment need to be manually adjusted through complex calculation so as to meet the requirements. In addition, in the energy internet, the quantity of current equipment, energy storage equipment is numerous and the specification differs, and is in dynamic change, if ceaselessly carry out manual setting and adjust in order to satisfy the demand, need consume a large amount of time and energy.
In summary, the prior art needs to consume much time and energy to manage and control the energy router manually to meet the demands of different devices.
Disclosure of Invention
In order to overcome or at least partially solve the above problems in the prior art that the management and control of the energy router by hand are time-consuming and labor-consuming to meet the demands of different devices, the present invention provides an SDN-based energy router and an electric energy transmission method.
According to a first aspect of the invention, there is provided an SDN based energy router comprising:
an SDN controller and each functional module;
the SDN controller is used for generating a control strategy according to a control requirement preset by an energy packet to be transmitted, and sending the control strategy to the corresponding functional module;
the functional module is used for receiving a control strategy sent by the SDN controller, acquiring the control strategy matched with the packet header information of the energy packet to be transmitted in the functional module, and transmitting the energy packet to be transmitted according to the control strategy matched with the packet header information and the packet header information.
Specifically, the functional module is specifically configured to:
analyzing the packet header of the energy packet to be transmitted to obtain the destination address and the control strategy requirement of the energy packet to be transmitted;
inquiring in the flow table item of the control strategy in the functional module according to the analyzed control strategy requirement;
when a control strategy matched with the control strategy requirement is inquired, acquiring an output port of the energy packet to be transmitted in the energy router according to a destination address of the energy packet to be transmitted;
and transmitting the energy packet to be transmitted according to the output port and the control strategy.
Specifically, the functional module is further configured to:
when a control strategy matched with the control strategy requirement is not inquired in a flow table entry in the functional module, sending the control strategy requirement to the SDN controller;
accordingly, the SDN controller is further configured to:
receiving a control strategy requirement sent by the functional module;
and generating a control strategy according to the control strategy requirement, and sending the control strategy to the corresponding function module in a flow table entry form.
Specifically, the functional module is further configured to:
and after acquiring the control strategy requirement in the packet header information by analyzing the packet header of the energy packet to be transmitted, modifying the control strategy requirement.
Specifically, the SDN controller is further configured to: and updating and deleting the flow table items of the control strategies in the functional modules.
Specifically, the control strategy generated by the SDN controller includes one or more of a plug and play strategy, a traditional energy production device scheduling strategy, a new energy production device control strategy, an energy storage device scheduling strategy, a network overall scheduling strategy, an energy transmission strategy, a load management strategy, and a fault handling strategy.
According to a second aspect of the present invention, there is provided an electric energy transmission method based on the energy router as described above, including:
and S11, generating a control strategy according to a control strategy requirement preset by the energy packet to be transmitted, sending the control strategy to a corresponding functional module, so that the functional module can obtain the control strategy matched with the packet header information of the energy packet to be transmitted in the functional module, and transmitting the energy packet to be transmitted according to the control strategy matched with the packet header information and the packet header information.
Specifically, the step S11 further includes:
receiving a control strategy requirement sent by a functional module of an energy router when the functional module does not inquire a control strategy matched with the control strategy requirement, and generating a control strategy according to the control strategy requirement; the control strategy is required to be acquired by the functional module through analyzing the packet header of the energy packet to be transmitted.
According to a third aspect of the present invention, there is provided a power transmission method based on the energy router, including:
s21, receiving a control strategy sent by an SDN controller of the energy router;
s22, analyzing the packet header of the energy packet to be transmitted, and acquiring the destination address and the control strategy requirement of the energy packet to be transmitted;
s23, inquiring in the flow table item in the functional module of the energy router according to the analyzed control strategy requirement;
s24, when a control strategy matched with the control strategy requirement is inquired in the flow table item, acquiring an output port of the energy packet to be transmitted in the energy router according to the destination address of the energy packet to be transmitted;
and S25, transmitting the energy packet to be transmitted according to the output port and the control strategy.
Specifically, the step S24 further includes:
when a control policy matching with the control policy requirement is not queried in the flow table entry, sending the control policy requirement to the SDN controller, so that the SDN controller generates a control policy according to the control policy requirement.
The invention provides an energy router based on an SDN (software defined network) and an electric energy transmission method, wherein software definition related concepts, technologies and architectures are introduced into the process of making and executing a control strategy through the SDN controller, so that the unified control and management of each functional module in the energy router are realized, the flexibility and the robustness of the operation of the energy router are improved, the control of the energy router is simplified, the adaptability of the energy router is improved, and the automatic management of the energy router is realized.
Drawings
Fig. 1 is a schematic structural diagram of an SDN-based energy router device according to an embodiment of the present invention;
fig. 2 is a schematic flow chart of an electric energy transmission method according to an embodiment of the present invention.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
In an embodiment of the present invention, an SDN-based energy router is provided, and fig. 1 is a schematic structural diagram of an SDN-based energy router provided in an embodiment of the present invention, where the apparatus includes: an SDN controller and each functional module; the SDN controller is used for generating a control strategy according to a control requirement preset by an energy packet to be transmitted, and sending the control strategy to the corresponding functional module; the functional module is used for receiving a control strategy sent by the SDN controller, acquiring the control strategy matched with the packet header information of the energy packet to be transmitted in the functional module, and transmitting the energy packet to be transmitted according to the control strategy matched with the packet header information and the packet header information.
Specifically, the functional architecture of the SDN-based energy router is divided into two layers, an upper layer is an SDN controller, and a lower layer is a software and hardware functional module for implementing various specific functions, where the functional module is mainly responsible for accessing, transmitting, and managing energy, such as functional module 1, functional module 2, and functional module 3 in fig. 1, and this embodiment is not limited to these three functional modules. The SDN controller is based on an SDN (Software Defined Network) idea, is similar to an energy router control system of a computer operating system, and realizes unified control and management of all functional modules in the energy router, so that the whole structure of the energy router is simple, efficient and intelligent to realize functions of energy production, transmission, routing, conversion and the like, and all functions of the energy router are flexibly controlled, operated and operated. The SDN controller realizes the functions of a simple, efficient and extensible energy router in the energy Internet. Unlike the conventional application scenario of the SDN technology, the SDN technology is not applied to the design of the whole energy internet, and management and control of the energy router are implemented only by using the SDN technology inside the energy router, which is equivalent to building a small SDN operating system inside the energy router.
The SDN controller generates or establishes a control policy within the energy router based on previous operational experience and actual operational requirements. The SDN controller may employ learning and optimization techniques such as artificial intelligence, reinforcement learning, and the like to establish the control strategy. And the SDN controller actively or passively issues the control strategy to the corresponding functional module according to the actual operation requirement of each lower functional module. The SDN controller may require that, for a preset control policy that is most frequently or most likely to be used, a corresponding control policy be sent to the corresponding function module in the form of a flow entry. For example, when a new device is accessed, the SDN controller obtains a preset control policy requirement corresponding to the type and model of the new device according to the type and model of the new device, and generates a control policy according to the measurement requirement. The functional module obtains a control strategy matched with packet header information of an energy packet to be transmitted in the functional module, and transmits the energy packet to be transmitted according to the control strategy matched with the packet header information and the packet header information. The SDN controller may proactively issue control policies to energy router related function modules for the most commonly used or most likely used policy flow entries.
The functional module receives a control strategy sent by the SDN controller, obtains the control strategy matched with the packet header information of the energy packet to be transmitted in the functional module, and transmits the energy packet to be transmitted according to the control strategy matched with the packet header information and the packet header information. In network design, the SDN network architecture centralizes control functions to a controller for unified implementation, and the underlying communication device only needs to establish, query and update a flow table entry according to a command of the controller, so as to implement a simple transmission function. By the control mode, the SDN has the characteristics of simple control, flexible operation, convenient maintenance, easy expansion and the like, the defect of overstaffed function of the traditional network routing equipment is avoided, and the labor operation cost can be simplified and saved.
In the embodiment, software definition related concepts, technologies and architectures are introduced into the process of making and executing the control strategy by the SDN controller, so that the unified control and management of each functional module in the energy router are realized, the flexibility and the robustness of the operation of the energy router are improved, the control of the energy router is simplified, the adaptivity of the energy router is improved, and the automatic management of the energy router is realized.
In this embodiment, for a general control policy requirement, the SDN controller generates a control policy according to a control policy requirement corresponding to information of the device, and actively sends the control policy to a corresponding functional module, so as to improve the intelligence of the energy router.
On the basis of the foregoing embodiment, the functional module in this embodiment is specifically configured to: analyzing the packet header of the energy packet to be transmitted to obtain the destination address and the control strategy requirement of the energy packet to be transmitted; inquiring in the flow table item of the control strategy in the functional module according to the analyzed control strategy requirement; when a control strategy matched with the control strategy requirement is inquired, acquiring an output port of the energy packet to be transmitted in the energy router according to a destination address of the energy packet to be transmitted; and transmitting the energy packet to be transmitted according to the output port and the control strategy.
Specifically, the electric energy input into the energy router is transmitted in the form of energy packets, the front part of each energy packet comprises a packet header, and the packet header comprises information such as a destination address and control strategy requirements of energy packet transmission. The control strategy requirements are control and processing requirements in the energy packet transmission process. The information in the header can be efficiently extracted, read and modified by the energy router. And the functional module analyzes the packet header of the energy packet to be transmitted, and acquires the destination address and the control strategy requirement of the energy packet to be transmitted. Since the SDN controller sends the control policy to the corresponding functional module in the form of a flow entry, the functional module queries the flow entry in the functional module according to the control policy requirement in the parsed packet header information, and obtains the control policy matching the control policy requirement. And when a control strategy matched with the control strategy requirement is inquired, acquiring an output port of the energy packet to be transmitted in the energy router according to the destination address of the energy packet to be transmitted. And calling a corresponding functional module according to the control strategy to execute the control strategy, controlling and managing the transmission process of the energy package, and transmitting the capacity package to be transmitted to the output port.
On the basis of the foregoing embodiment, in this embodiment, the functional module is further configured to: when a control strategy matched with the control strategy requirement is not inquired in a flow table entry in the functional module, sending the control strategy requirement to the SDN controller; accordingly, the SDN controller is specifically configured to: receiving a control strategy requirement sent by the functional module; and generating a control strategy according to the control strategy requirement, and sending the control strategy to the corresponding function module in a flow table entry form.
Specifically, when a new energy packet enters a certain functional module of the energy router, if a control policy matching the control policy requirement is not queried in a flow entry in the functional module, the control policy requirement or a packet header containing the control policy requirement is sent to the SDN controller. And the SDN controller analyzes and processes the control strategy requirement according to the state information of the whole energy Internet, and issues the established control strategy to a corresponding function module of the energy router in the form of flow table items.
On the basis of the foregoing embodiment, in this embodiment, the functional module is further configured to: and after acquiring the control strategy requirement in the packet header information by analyzing the packet header of the energy packet to be transmitted, modifying the control strategy requirement.
Specifically, after the control policy requirement for energy packet transmission is obtained, the control policy requirement in the packet header can be modified according to the actual energy internet state, so that the control policy requirement can be modified in the energy packet transmission process, information in the packet header of the energy packet can be prevented from being modified only before transmission, and a large amount of time is saved.
On the basis of the foregoing embodiment, in this embodiment, the SDN controller is further configured to: and updating and deleting the flow table items of the control strategies in the functional modules.
Specifically, the SDN controller is further configured to update and delete flow entries of a control policy in the functional module. And if the running state of the energy Internet or the control target of a network manager changes, the SDN controller updates and deletes the flow table items of the control strategies in the functional module by issuing the updated flow table items.
On the basis of any of the foregoing embodiments, the control policy generated by the SDN controller in this embodiment includes one or more of a plug and play policy, a traditional energy production device scheduling policy, a new energy production device control policy, an energy storage device scheduling policy, a network overall scheduling policy, an energy transmission policy, a load management policy, and a fault handling policy.
Specifically, in the plug-and-play policy, when a device is plug-and-play, the SDN controller selects an appropriate driver and control program according to the type and model of the connected device. When the old equipment exits plug and play and new equipment is accessed, the energy router automatically senses the requirement of the required electric energy transmission format and realizes self-adaptive strategy conversion in the energy router. Power transmission format requirements include current, voltage, frequency, active, reactive, etc.
In the traditional energy production equipment scheduling strategy, the rotating speed and the start-stop of the generator are controlled according to the current situation of supply and demand balance in the energy Internet, such as light load, medium load or heavy load, so that the matching with the power demand is realized while the continuity and the stability of a power supply curve are ensured, and the energy production cost is reduced.
In the new energy production equipment control strategy, the voltage and the current of the photovoltaic power generation equipment are determined according to a maximum photovoltaic power generation principle, namely a maximum point tracking criterion. And the irradiation angle of the sunlight is changed through mechanical control, so that the generating capacity is improved, and the generating cost is reduced. According to the type of the wind driven generator, such as direct-drive wind power generation or double-fed wind power generation equipment, a proper power generation control program and a proper working mode are selected, such as a constant voltage mode, a maximum power generation mode or a limit power generation mode, so that the normal and robust work of the fan is ensured.
In the energy storage equipment scheduling strategy, the charging and discharging process of the energy storage system is intelligently controlled according to the overall supply and demand balance condition of the energy Internet or the occurrence of short-time abnormal fluctuation. Through various fluctuations in the charging and discharging stabilizing system, the overall and efficient supply and demand balance of the system is maintained, and the stable and economic operation of the system is ensured. The energy storage device scheduling strategy comprises the steps of power charge and discharge designation, maximum power charge and discharge, minimum power charge and discharge, a constant voltage charge and discharge mode and energy storage device disconnection.
In the network overall scheduling strategy, according to the network operation overall situation and the prediction of the future operation trend of the energy Internet system, the combined scheduling and control are carried out on various types of energy production equipment, and the working mode of the related energy equipment is controlled by combining the demand response of a user side, for example, the power generation equipment can operate in an energy supply-on-demand mode or a maximum power generation mode. And energy storage is combined, so that the production cost of electric power energy is minimized and the energy production efficiency is improved on the basis of ensuring balance of supply and demand and safe and stable operation of a system.
In the energy transmission strategy, related energy transmission strategies are adopted according to the energy supply and demand conditions of the system internal and the adjacent external systems. The energy transmission strategy comprises the steps that system energy is output to an external adjacent power grid, the system energy is input from an external electric energy system, and an internal energy storage system of the system is called to carry out charge and discharge control. The energy utilization efficiency is maximized while the balance of the whole energy supply and demand of the system is ensured.
In the load management strategy, when the energy shortage in the energy internet system cannot be avoided, the energy router can actively disconnect the electric energy connection with some unimportant electric equipment to ensure the normal operation of the important equipment.
In the fault processing strategy, the energy router can disconnect a fault area according to the obtained network equipment or line fault information and the related topology, and access a standby power supply to equipment in a fault downstream area so as to reduce fault loss.
The SDN architecture in the embodiment has the characteristics of easiness in expansion, control and management and the like, has more obvious performance advantages than the traditional communication architecture in a medium-small-scale communication network, and the operation performance of the energy router can be greatly improved when the architecture is applied to the design of the energy router. The SDN-based energy router has multiple functions of energy conversion, transmission, management, and the like, and a control policy needs to be continuously adjusted and optimized along with the change of a network state. Therefore, the flexible and efficient control architecture brings obvious improvement to the performance of the energy router. In consideration of the superior management performance of the SDN architecture, the application of the SDN architecture to the energy router management control system brings support and guarantee for the optimized operation of the system.
The embodiment provides an electric energy transmission method based on the energy router, which includes: and S11, generating a control strategy according to a control strategy requirement preset by the energy packet to be transmitted, sending the control strategy to a corresponding functional module, so that the functional module can obtain the control strategy matched with the packet header information of the energy packet to be transmitted in the functional module, and transmitting the energy packet to be transmitted according to the control strategy matched with the packet header information and the packet header information.
Specifically, the functional architecture of the SDN-based energy router is divided into two layers, the last time is an SDN controller, and the lower layer is a software and hardware functional module for implementing various specific functions, and the functional module is mainly responsible for energy access, transmission and management. The SDN controller is based on an SDN (Software Defined Network) idea, is similar to an energy router control system of a computer operating system, and realizes unified control and management of all functional modules in the energy router. The SDN controller generates or establishes a control policy within the energy router based on previous operational experience and actual operational requirements. The SDN controller may employ learning and optimization techniques such as artificial intelligence, reinforcement learning, and the like to establish the control strategy. And the SDN controller actively or passively issues the control strategy to the corresponding functional module according to the actual operation requirement of each lower functional module. The SDN controller may require that, for a preset control policy that is most frequently or most likely to be used, a corresponding control policy be sent to the corresponding function module in the form of a flow entry. For example, when a new device is accessed, the SDN controller obtains a preset control policy requirement corresponding to the type and model of the new device according to the type and model of the new device, and generates a control policy according to the measurement requirement. The functional module obtains a control strategy matched with packet header information of an energy packet to be transmitted in the functional module, and transmits the energy packet to be transmitted according to the control strategy matched with the packet header information and the packet header information. The SDN controller may proactively issue control policies to energy router related function modules for the most commonly used or most likely used policy flow entry.
In the embodiment, software definition related concepts, technologies and architectures are introduced into the process of making and executing the control strategy by the SDN controller, so that the unified control and management of each functional module in the energy router are realized, the flexibility and the robustness of the operation of the energy router are improved, the control of the energy router is simplified, the adaptivity of the energy router is improved, and the automatic management of the energy router is realized.
On the basis of the foregoing embodiment, step S11 in this embodiment further includes: receiving a control strategy requirement sent by a functional module of an energy router when the functional module does not inquire a control strategy matched with the control strategy requirement, and generating a control strategy according to the control strategy requirement; the control strategy is required to be acquired by the functional module through analyzing the packet header of the energy packet to be transmitted.
Specifically, the SDN controller receives a control policy requirement sent by a functional module of an energy router when the functional module does not inquire a control policy that matches the control policy requirement, analyzes and processes the control policy requirement according to state information of the entire energy internet, and issues an established control policy to a corresponding functional module of the energy router in the form of a flow entry, so that the functional module transmits the energy packet according to the flow entry.
The embodiment provides an electric energy transmission method based on the energy router, as shown in fig. 2, the method includes: s21, receiving a control strategy sent by an SDN controller of the energy router; s22, analyzing the packet header of the energy packet to be transmitted, and acquiring the destination address and the control strategy requirement of the energy packet to be transmitted; s23, inquiring in the flow table item in the functional module of the energy router according to the analyzed control strategy requirement; s24, when a control strategy matched with the control strategy requirement is inquired in the flow table item, acquiring an output port of the energy packet to be transmitted in the energy router according to the destination address of the energy packet to be transmitted; and S25, transmitting the energy packet to be transmitted according to the output port and the control strategy.
Specifically, the electric energy input into the energy router is transmitted in the form of energy packets, the front part of each energy packet comprises a packet header, and the packet header comprises information such as a destination address and control strategy requirements of energy packet transmission. The control strategy requirements are control and processing requirements in the energy packet transmission process. The information in the header can be efficiently extracted, read and modified by the energy router. And the functional module analyzes the packet header of the energy packet to be transmitted, and acquires the destination address and the control strategy requirement of the energy packet to be transmitted. Since the SDN controller sends the control policy to the corresponding functional module in the form of a flow entry, the functional module queries the flow entry in the functional module according to the control policy requirement in the parsed packet header information, and obtains the control policy matching the control policy requirement. And when a control strategy matched with the control strategy requirement is inquired, acquiring an output port of the energy packet to be transmitted in the energy router according to the destination address of the energy packet to be transmitted. And calling a corresponding functional module according to the control strategy to execute the control strategy, controlling and managing the transmission process of the energy package, and transmitting the capacity package to be transmitted to the output port.
On the basis of the foregoing embodiment, step S24 in this embodiment further includes: when a control policy matching with the control policy requirement is not queried in the flow table entry, sending the control policy requirement to the SDN controller, so that the SDN controller generates a control policy according to the control policy requirement.
Specifically, when a new energy packet enters a certain functional module of the energy router, if a control policy matching the control policy requirement is not queried in a flow entry in the functional module, the control policy requirement or a packet header including the control policy requirement is sent to the SDN controller, so that the SDN controller analyzes and processes the control policy requirement according to state information of the whole energy internet, and sends the established control policy to a corresponding functional module of the energy router in the form of a flow entry.
Finally, the method of the present application is only a preferred embodiment and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. An SDN-based energy router, comprising:
an SDN controller and each functional module;
the SDN controller is used for generating a control strategy according to a preset control strategy requirement and sending the control strategy to the corresponding functional module;
the functional module is used for receiving a control strategy sent by the SDN controller, acquiring the control strategy matched with packet header information of an energy packet to be transmitted in the functional module, and transmitting the energy packet to be transmitted according to the control strategy matched with the packet header information and the packet header information;
the preset control strategy requirement is a preset control strategy requirement corresponding to the information of the equipment accessed to the energy router.
2. The energy router of claim 1, wherein the functional module is specifically configured to:
analyzing the packet header of the energy packet to be transmitted to obtain the destination address and the control strategy requirement of the energy packet to be transmitted;
inquiring in the flow table item of the control strategy in the functional module according to the analyzed control strategy requirement;
when a control strategy matched with the control strategy requirement is inquired, acquiring an output port of the energy packet to be transmitted in the energy router according to a destination address of the energy packet to be transmitted;
and transmitting the energy packet to be transmitted according to the output port and the control strategy.
3. The energy router of claim 2, wherein the functional module is further configured to:
when a control strategy matched with the control strategy requirement in the packet header is not inquired in the flow table entry in the functional module, sending the control strategy requirement to the SDN controller; the control strategy requirement in the packet header is the control and processing requirement in the transmission process of the energy packet to be transmitted;
accordingly, the SDN controller is further configured to:
receiving a control strategy requirement sent by the functional module;
and generating a control strategy according to the control strategy requirement, and sending the control strategy to the corresponding function module in a flow table entry form.
4. The energy router of any of claims 1-3, wherein the functional module is further configured to:
after acquiring the control strategy requirement in the packet header information by analyzing the packet header of the energy packet to be transmitted, modifying the control strategy requirement;
correspondingly, the functional module is specifically configured to:
inquiring in the flow table item of the control strategy in the functional module according to the modified control strategy requirement;
when a control strategy matched with the modified control strategy requirement is inquired, acquiring an output port of the energy packet to be transmitted in the energy router according to a destination address of the energy packet to be transmitted;
and transmitting the energy packet to be transmitted according to the output port and the control strategy.
5. The energy router of any of claims 1-3, wherein the SDN controller is further configured to: and updating and deleting the flow table items of the control strategies in the functional modules.
6. The energy router of any of claims 1-3, wherein the control policies generated by the SDN controller include one or more of plug and play policies, legacy energy production device scheduling policies, new energy production device control policies, energy storage device scheduling policies, network integrity scheduling policies, energy transmission policies, load management policies, and fault handling policies.
7. An electric energy transmission method based on the energy router according to any one of claims 1-6, characterized in that:
s11, generating a control strategy according to a preset control strategy requirement, sending the control strategy to a corresponding functional module, so that the functional module can obtain the control strategy matched with the packet header information of the energy packet to be transmitted in the functional module, and transmitting the energy packet to be transmitted according to the control strategy matched with the packet header information and the packet header information;
the preset control strategy requirement is a preset control strategy requirement corresponding to the information of the equipment accessed to the energy router.
8. The method according to claim 7, wherein the step S11 further comprises:
receiving a control strategy requirement sent by a functional module of an energy router when the functional module does not inquire a control strategy matched with the control strategy requirement in a packet header, and generating a control strategy according to the control strategy requirement; the control strategy is required to be acquired by the functional module through analyzing the packet header of the energy packet to be transmitted; and the control strategy requirement in the packet header is the control and processing requirement in the transmission process of the energy packet to be transmitted.
9. An electric energy transmission method based on the energy router according to any one of claims 1-6, characterized in that:
s21, receiving a control strategy sent by an SDN controller of the energy router;
s22, analyzing the packet header of the energy packet to be transmitted, and acquiring the destination address and the control strategy requirement of the energy packet to be transmitted;
s23, inquiring in the flow table item in the functional module of the energy router according to the analyzed control strategy requirement;
s24, when a control strategy matched with the control strategy requirement is inquired in the flow table item, acquiring an output port of the energy packet to be transmitted in the energy router according to the destination address of the energy packet to be transmitted;
s25, transmitting the energy packet to be transmitted according to the output port and the control strategy;
the control strategy sent by the SDN controller is generated according to a preset control strategy requirement corresponding to the information of the equipment accessed to the energy router.
10. The method according to claim 9, wherein the step S24 further comprises:
when a control policy matching the control policy requirement in the packet header is not queried in the flow entry, sending the control policy requirement to the SDN controller, so that the SDN controller generates a control policy according to the control policy requirement;
and the control strategy requirement in the packet header is the control and processing requirement in the transmission process of the energy packet to be transmitted.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104993988A (en) * | 2015-07-03 | 2015-10-21 | 清华大学 | Method for scheduling and controlling energy Internet |
| CN106059918A (en) * | 2016-06-27 | 2016-10-26 | 北京邮电大学 | Energy internet control layered architecture based on SDN (Software Defined Networking) and scheduling method |
| CN106301570A (en) * | 2015-06-09 | 2017-01-04 | 河北工程大学 | A kind of NC centralized Control method in software definition FiWi network |
| CN106412880A (en) * | 2015-07-29 | 2017-02-15 | 中国科学院沈阳自动化研究所 | Wireless mesh safety hierarchical transmission method based on SDN |
| CN106888459A (en) * | 2017-02-22 | 2017-06-23 | 重庆邮电大学 | Reduce the information terminal and its communication means of D2D signaling consumptions and frequency spectrum resource interference |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9639144B2 (en) * | 2011-03-02 | 2017-05-02 | Tso Logic Inc. | Power state adjustment |
-
2017
- 2017-10-19 CN CN201710976677.2A patent/CN107846360B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106301570A (en) * | 2015-06-09 | 2017-01-04 | 河北工程大学 | A kind of NC centralized Control method in software definition FiWi network |
| CN104993988A (en) * | 2015-07-03 | 2015-10-21 | 清华大学 | Method for scheduling and controlling energy Internet |
| CN106412880A (en) * | 2015-07-29 | 2017-02-15 | 中国科学院沈阳自动化研究所 | Wireless mesh safety hierarchical transmission method based on SDN |
| CN106059918A (en) * | 2016-06-27 | 2016-10-26 | 北京邮电大学 | Energy internet control layered architecture based on SDN (Software Defined Networking) and scheduling method |
| CN106888459A (en) * | 2017-02-22 | 2017-06-23 | 重庆邮电大学 | Reduce the information terminal and its communication means of D2D signaling consumptions and frequency spectrum resource interference |
Non-Patent Citations (2)
| Title |
|---|
| "能源互联网与能源路由器";曹军威 等;《中国科学：信息科学》;20140620;第44卷(第6期);全文 * |
| "软件定义的能源互联网信息通信技术研究";曹军威 等;《中国电机工程学报》;20150720;第35卷(第14期);全文 * |
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