CN110971466A - Intelligent power grid information-physical multi-agent system - Google Patents
Intelligent power grid information-physical multi-agent system Download PDFInfo
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- CN110971466A CN110971466A CN201911276263.4A CN201911276263A CN110971466A CN 110971466 A CN110971466 A CN 110971466A CN 201911276263 A CN201911276263 A CN 201911276263A CN 110971466 A CN110971466 A CN 110971466A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/14—Network analysis or design
- H04L41/145—Network analysis or design involving simulating, designing, planning or modelling of a network
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/06—Management of faults, events, alarms or notifications
- H04L41/0654—Management of faults, events, alarms or notifications using network fault recovery
- H04L41/0668—Management of faults, events, alarms or notifications using network fault recovery by dynamic selection of recovery network elements, e.g. replacement by the most appropriate element after failure
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/08—Configuration management of networks or network elements
- H04L41/0803—Configuration setting
- H04L41/0823—Configuration setting characterised by the purposes of a change of settings, e.g. optimising configuration for enhancing reliability
- H04L41/0836—Configuration setting characterised by the purposes of a change of settings, e.g. optimising configuration for enhancing reliability to enhance reliability, e.g. reduce downtime
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Power Engineering (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The invention discloses an intelligent power grid information-physical multi-agent system, which comprises a plurality of information network devices, physical power network devices and a local controller, wherein the information network devices and the physical power network devices are respectively positioned at the upper end and the lower end, nodes of the information network devices correspond to nodes of the physical power network devices, and the information network devices are connected with the local information controller; the intelligent agent comprises nodes of the physical power network equipment, data acquisition equipment and a local information controller. On the basis of meeting the control requirement of the system, the configuration quantity of the data acquisition equipment is optimized, the response speed of the intelligent power grid system is improved, the reliability of the information network under the influence of single line faults of the physical network is considered, and the data acquisition equipment with different channel capacities is ensured to be optimally configured to fulfill the completely considerable aim of the power system.
Description
Technical Field
The invention relates to the technical field of smart grids, in particular to a smart grid information-physical multi-agent system.
Background
In recent years, with the rapid development of national economy, the demand for electric energy in the whole society keeps increasing rapidly and the demand for power supply quality is becoming higher and higher. However, at present, all countries face serious problems of resource scarcity, environmental pollution and the like threatening sustainable development, a large amount of clean energy, namely electric energy, is urgently needed to be utilized in an energy consumption link, the terminal energy consumption ratio of electric power is improved, and therefore energy consumption is converted to low-carbon efficient acceleration, and under the condition, the smart grid technology is produced and rapidly developed. Currently, under the big background of world energy pattern change and 4.0 steady advance of industry, the interconnection characteristics of energy revolution and power system and supply and demand interaction determine that power development becomes the core of national energy strategy.
In the operation of the power system, the frequency is an important control parameter reflecting the power supply and demand balance. Under normal conditions, the sum of the active power generated by each generator in the power system is balanced with the sum of the active power consumed by each load, and the frequency is kept near the rated value. However, when the smart grid is disturbed by information or physics, the power generated by the generator is unbalanced with the power consumed by the load, and the frequency of the power system deviates from the rated value of the operation of the power system. When the frequency deviation exceeds a certain value, the frequency deviation can bring serious influence on the operation of a power grid and economic production, damage electric power operation equipment, influence the product quality and even cause system breakdown.
The smart grid is considered as a new generation grid which can meet different requirements of various users, has advantages of the smart grid, however, under the trend of wide interconnection and deep fusion, the problems of system stability caused by information disturbance and information network vulnerability are brought by intellectualization and informatization, and the research on the safety and stability of the operation of the smart grid is in a more important position. The method needs to fully consider the influence of information on the timely response and control of the system, reduce unnecessary information transmission and reasonably utilize the existing resources, and has very important significance for configuring information equipment and controlling the calculated amount.
Disclosure of Invention
The invention aims to provide an intelligent power grid information-physical multi-agent system aiming at the defects in the prior art, which can clear the space mapping relation between an information network and a physical network in an intelligent power grid and construct an intelligent power grid model according to the actual situation.
The purpose of the invention is realized by the following technical scheme:
an intelligent power grid information-physical multi-agent system comprises a plurality of information network devices, physical power network devices and a local controller, wherein the information network devices and the physical power network devices are respectively positioned at the upper end and the lower end, nodes of the information network devices correspond to nodes of the physical power network devices, and the information network devices are connected with the local information controller; the intelligent agent comprises nodes of the physical power network equipment, data acquisition equipment and a local information controller.
Further, the information network device comprises a computing device, a data acquisition device and a transmission line.
Further, the data acquisition equipment is installed on the node of the information network equipment.
Further, the nodes of the information network device are dynamic nodes.
Further, the local information controller is connected with the physical power network device, and the local information controller applies the information network device to the physical power network device node.
Furthermore, a mapping thread for carrying data circulation is arranged between the information network device and the physical power network device.
Compared with the prior art, the invention has the following beneficial effects:
on the basis of meeting the control requirement of the system, the configuration quantity of the data acquisition equipment is optimized, the response speed of the intelligent power grid system is improved, the reliability of the information network under the influence of single line faults of the physical network is considered, and the data acquisition equipment with different channel capacities is ensured to be optimally configured to fulfill the completely considerable aim of the power system.
The information acquisition range and the data volume of the multi-agent system provided by the invention are far larger than those of a common intelligent power grid; under the influence of single line faults of a physical network, the configuration of data acquisition equipment with different channel capacities is optimized on the premise of ensuring that each node of the information network is observed by at least two data acquisition equipment, and the multi-agent system is ensured to be completely observable.
Detailed Description
In order to facilitate understanding of the present invention, the present invention will be described in more detail with reference to the following examples, but the scope of the present invention is not limited to the following specific examples.
Unless otherwise defined, all terms of art used hereinafter have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of the present invention.
Example 1
The embodiment provides a smart grid information-physical multi-agent system, which comprises a plurality of information network devices, physical power network devices and a local controller; the information network equipment is positioned at the upper end of the physical power network equipment, the information network equipment nodes correspond to the nodes of the physical power network equipment, a mapping thread for bearing data circulation is arranged between the information network equipment and the physical power network equipment, and the information network equipment uploads the power grid information to the information network in real time and issues a control instruction from the information network to the physical power network in real time. The information network equipment is connected with the local information controller, and the intelligent agent comprises nodes of the physical power network equipment, data acquisition equipment and the local information controller.
The information network device comprises a computing device, a data acquisition device and a transmission line, wherein the data acquisition device is installed on a node of the information network device. The local information controller is connected with the physical power network equipment, applies the information network equipment to the physical power network equipment node, and controls the physical power network equipment.
In this embodiment, the node voltage phasor data and the associated branch current phasor may be directly obtained for the bus where the data acquisition device is already installed, and the node where the data acquisition device is not installed may obtain a virtual quantity measurement result by calculation according to Kirchhoff's Current Law (KCL) and Ohm's Law (OL), that is, data that is not directly obtained by the data acquisition device.
Specifically, the working process of the smart grid information-physical multi-agent system provided by this embodiment is as follows: when the system has no zero injection node and only contains load nodes, the following rules are followed: (1) if a certain node is provided with data acquisition equipment, all data of the node and data of each node connected with the node can be acquired;
(2) if the voltage phasor of the nodes at two ends of a certain line is known, the current phasor of the line can be calculated according to kirchhoff law (KCL) and Ohm Law (OL);
and when the system has the zero injection node A, the following rules are followed: (3) if A can be observed, B connected with A is unknown, and the information of other points connected with A is known, the data of node B can be obtained through calculation;
(4) if A is unknown and all nodes connected with A can be observed, the information of A can be obtained through calculation.
On the basis of meeting the control requirement of the system, the configuration quantity of the data acquisition equipment is optimized, and the response speed and the reliability of the intelligent power grid system are improved.
It should be understood that the above examples are only for clearly illustrating the technical solutions of the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (6)
1. The intelligent power grid information-physical multi-agent system is characterized by comprising a plurality of information network devices, physical power network devices and a local controller, wherein the information network devices and the physical power network devices are respectively positioned at the upper end and the lower end, nodes of the information network devices correspond to nodes of the physical power network devices, and the information network devices are connected with the local information controller; the intelligent agent comprises nodes of the physical power network equipment, data acquisition equipment and a local information controller.
2. The smart-grid information-physical multi-agent system according to claim 1, wherein the information network device comprises a computing device, a data acquisition device, and a transmission line.
3. The smart-grid cyber-physical multi-agent system according to claim 2, wherein the data collecting device is installed on a node of an information network device.
4. The smart-grid information-physical multi-agent system according to claim 3, wherein the nodes of the information network device are dynamic nodes.
5. The smart-grid information-physical multi-agent system as claimed in claim 1, wherein the local information controller is connected with a physical power network device, the local information controller applying an information network device to a physical power network device node.
6. The smart-grid information-physical multi-agent system according to claim 1, wherein a mapping thread for carrying data traffic is provided between the information network device and the physical power network device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911276263.4A CN110971466A (en) | 2019-12-12 | 2019-12-12 | Intelligent power grid information-physical multi-agent system |
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| CN201911276263.4A CN110971466A (en) | 2019-12-12 | 2019-12-12 | Intelligent power grid information-physical multi-agent system |
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| CN110971466A true CN110971466A (en) | 2020-04-07 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112305914A (en) * | 2020-10-27 | 2021-02-02 | 东北大学 | Distributed control algorithm of power interconnection system considering blocking attack |
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- 2019-12-12 CN CN201911276263.4A patent/CN110971466A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112305914A (en) * | 2020-10-27 | 2021-02-02 | 东北大学 | Distributed control algorithm of power interconnection system considering blocking attack |
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