CN112350307B - Control method and control device for regional power distribution network and computer readable storage medium - Google Patents
Control method and control device for regional power distribution network and computer readable storage medium Download PDFInfo
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- CN112350307B CN112350307B CN202011176018.9A CN202011176018A CN112350307B CN 112350307 B CN112350307 B CN 112350307B CN 202011176018 A CN202011176018 A CN 202011176018A CN 112350307 B CN112350307 B CN 112350307B
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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
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
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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
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/12—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load
- H02J3/14—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load by switching loads on to, or off from, network, e.g. progressively balanced loading
- H02J3/144—Demand-response operation of the power transmission or distribution network
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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
- Y02B70/3225—Demand response systems, e.g. load shedding, peak shaving
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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
- Y04S20/222—Demand response systems, e.g. load shedding, peak shaving
Abstract
The invention provides a control method, a control device and a computer readable storage medium of a regional distribution network, wherein the control method comprises the following steps: acquiring the working condition of the power load on each section of power distribution network in a multi-section power distribution network; wherein there is a power priority for the electrical loads on each segment of the power distribution network; and when the electric load with higher power supply priority does not work normally, controlling the electric load with lower power supply priority to supply power and reduce load. So set up, can be when the mains supply is not enough, supply power the deloading to the lower power load of power supply priority according to the power priority, make the distribution network can supply for the higher power load of priority with the electric power after the deloading to guarantee that the higher power load of power supply priority normally works.
Description
Technical Field
The invention relates to the technical field of regional micro-grids, in particular to a control method and a control device for a regional power distribution grid and a computer readable storage medium.
Background
Along with the application of a novel electric power energy system combining distributed energy power generation and energy storage in a regional power distribution network, a regional micro power grid structure comprising power grid power supply, regional distributed power generation, energy storage, power distribution, power utilization and the like is gradually formed, and the stable and economic operation of a micro power grid system can be ensured through the coordination command of energy management under the support of a power grid power supply loop. The micro-grid is established for solving the problem of local consumption of the distributed power supply and reducing the loss of the network and the loss of the power supply of the distribution line.
At present, in the power supply of comprehensive energy sources of a regional industrial park, the power consumption of an office area, a living area and important loads are supplied by the same power grid, and the important loads can be important production lines, data processing centers, communication machine rooms, fire-fighting power supplies and the like. Because the power consumption of the important load is higher, when the power supply of the power grid is insufficient, the important load stops working at first, and therefore more economic damage and potential safety hazards are brought to an industrial park.
Disclosure of Invention
Therefore, the technical problem to be solved by the present invention is to overcome the problem that when the power supply of the power grid is insufficient in the prior art, the important load stops working at first, thereby causing more economic damage and potential safety hazard to the industrial park, and thereby provide a control method, a control device and a computer readable storage medium for a regional power distribution network.
In order to achieve the above object, the present invention provides a control method for a regional distribution network, including: acquiring the working condition of the power load on each section of power distribution network in a multi-section power distribution network; wherein there is a power priority for the electrical loads on each segment of the distribution network; and when the electric load with higher power supply priority does not work normally, controlling the electric load with lower power supply priority to supply power and reduce load.
Optionally, the controlling power supply shedding of the power load with a lower power supply priority includes: and controlling the power loads with lower power supply priority to sequentially supply power and reduce load.
Optionally, after the controlling the power loads with lower power supply priority to sequentially perform power supply load shedding, the control method further includes: judging whether the power load with higher power supply priority can work normally or not; if not, controlling the power loads in other power distribution networks to sequentially supply power and reduce the load according to the power supply priority.
Optionally, the control method further includes: acquiring a first signal; the first signal is used for representing power supply load shedding information; and reporting the first signal to a server.
Optionally, after reporting the first signal to the server, the control method further includes: and controlling the server to send the first signal to the user terminal.
Optionally, when the electrical load with a higher power supply priority does not work normally, the electrical load with a lower power supply priority is controlled to perform power supply load shedding, and the control method further includes: when the power load with higher power supply priority does not work normally, acquiring the working condition of each section of power distribution network; if the distribution network is in a non-working state, the connection between the distribution network and the electric loads is disconnected, or the electric loads with lower power supply priority are controlled to supply power and reduce the load; and if the power distribution network is in a working state, controlling the power loads with lower power supply priority to supply power and reduce load.
Optionally, if there is a power distribution network in an inoperative state, the power distribution network is disconnected from the electrical loads, or the electrical loads with a lower power supply priority are controlled to perform power supply load shedding, where the control method includes: when part of the power distribution network is in an inoperative state, controlling the power load with lower power supply priority to supply power and reduce load; and if all the power distribution networks are in the non-operating state, the power distribution networks are disconnected from the power consumption loads.
Optionally, when part of the power distribution network is in an idle state, controlling the electrical load with a lower power supply priority to supply power and reduce the load, where the control method includes: when part of the power distribution networks are in an inoperative state, acquiring power utilization balance data of the multiple sections of power distribution networks; adjusting the operation mode and the output power of the power generation system according to the power utilization balance data; and controlling the power load with lower power supply priority to supply power and reduce load.
An embodiment of the present invention further provides a control device for a regional power distribution network, where the control device includes: the acquisition module is used for acquiring the working condition of the power load on each level of power distribution network in a multi-level power distribution network; wherein the power supply priority of the power distribution network corresponds to the power supply priority of the electrical load; and the control module is used for controlling the power distribution network with lower power supply priority to supply power and reduce load when the power load on the power distribution network with higher power supply priority does not work normally.
An embodiment of the present invention further provides a computer-readable storage medium, where the computer-readable storage medium stores computer instructions, and the computer instructions are configured to enable the computer to execute any one of the control methods.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention provides a control method of a regional power distribution network, which comprises the following steps: acquiring the working condition of the power load on each section of power distribution network in a plurality of sections of power distribution networks; wherein there is a power priority for the electrical loads on each segment of the power distribution network; and when the electric load with higher power supply priority does not work normally, controlling the electric load with lower power supply priority to supply power and reduce load.
So set up, can supply power according to the power supply priority when the electric wire netting power supply is not enough to the power load that the power supply priority is lower and subtract the year, make the distribution network can supply with the power after subtracting the year for the higher power load of priority to guarantee that the higher power load of power supply priority normally works.
2. According to the embodiment of the invention, the power loads with lower power supply priority are controlled to sequentially supply power and reduce the load, so that other power loads on the power distribution network can be ensured to normally work, the influence on the normal operation of more power loads is avoided, and the working efficiency is improved.
3. According to the embodiment of the invention, the server is controlled to send the first signal to the user terminal, so that the user can know the related information of power supply load shedding at the first time, the user can prepare in advance, and the life experience of the user is improved.
4. According to the embodiment of the invention, when the power load with higher power supply priority does not work normally, the working condition of each section of the power distribution network is obtained; if the distribution network is in an inoperative state, the connection between the distribution network and the power load is disconnected, or the power load with lower power supply priority is controlled to supply power and reduce the load; and if the power distribution network is in a working state, controlling the power load with lower power supply priority to supply power and reduce load.
So set up, can be when all distribution networks have a power failure and overhaul, energy management system starts and carries out official working, life load deloading procedure, jumps off all official working, life load switches of trouble place distribution network fast, keeps apart it with the little electric wire netting, guarantees the salvage or the maintenance of distribution network. When part of the power distribution networks are out of operation due to faults, the power loads with lower power supply priority can be controlled to supply power and reduce the load, so that other power distribution networks can supply power to the power loads with higher priority on the power distribution networks which are out of operation due to faults, and the power loads with higher power supply priority can work normally. And when the distribution network is in a working state, the power loads with lower power supply priority can be directly controlled to supply power and reduce the load, so that the distribution network can supply power for the power loads with higher priority after load reduction, and further the working efficiency is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 shows a schematic diagram of a control method of an area distribution network of embodiment 1.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is to be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
Example 1
As shown in fig. 1, the present invention provides a control method for a regional distribution network, which mainly includes the following steps:
s1, acquiring the working condition of the power load on each section of power distribution network in a multi-section power distribution network; wherein there is a power priority for the electrical loads on each segment of the power distribution network;
each section of power distribution network is provided with an office power supply system, a living power supply system, a production power supply system, a fire protection power supply system, a safety facility power supply system and other power loads. Under the condition of normal power supply, the power load is uniformly distributed on the power distribution network, so that the power distribution network can uniformly operate with the power load. And monitoring the working condition of the power load on the power distribution network through the data reported by the monitoring system.
However, in the case where the power supply is insufficient in a part of the time, since only the normal operation of a part of the power supply systems can be satisfied, it is necessary to set the priority of different power supply systems. Therefore, the power supply priorities of the different power supply systems may be set in advance, for example, as follows:
the production power supply system, the fire-fighting power supply system, the safety facility power supply system, the life power supply system and the office power supply system are connected in series.
And S2, when the power load with higher power supply priority does not work normally, controlling the power load with lower power supply priority to supply power and reduce load.
Under the condition of power supply shortage, the normal operation of power loads such as a production power supply system, a fire-fighting power supply system, a safety facility power supply system and the like needs to be ensured, and the office power supply system and the living power supply system can temporarily carry out load shedding so as to ensure the prior safe operation of important loads in the local area network. For example, the power supply load reduction can be performed on an office power supply system or a living power supply system.
So set up, can supply power according to the power supply priority when the electric wire netting power supply is not enough to the power load that the power supply priority is lower and subtract the year, make the distribution network can supply with the power after subtracting the year for the higher power load of priority to guarantee that the higher power load of power supply priority normally works.
Optionally, step S2 may further include:
and S3, controlling the power loads with lower power supply priority to sequentially supply power and reduce load.
Specifically, the working power of the electrical load in the domestic power supply system can be reduced first, so that the consumption of the electrical power is reduced. Secondly, the working power of the electrical load in the office power supply system can be reduced or limited in case the power demand is still not met.
Of course, under the condition that the power demand cannot be met, the life power supply system and the office power supply system can be stopped until the power generated by the power generation system can meet the demand of all power loads in the power distribution network.
According to the embodiment of the invention, the power loads with lower power supply priority are controlled to sequentially supply power and reduce the load, so that other power loads on the power distribution network can be ensured to normally work, the influence on the normal operation of more power loads is avoided, and the working efficiency is improved.
Optionally, after step S3, the control method further includes:
s4, judging whether the power load with higher power supply priority can work normally or not;
and S5, if not, controlling the power loads in other power distribution networks to sequentially supply power and reduce load according to the power supply priority.
After the power load of the current power distribution network is powered and deloaded, whether the power load with higher power supply priority can work normally is judged. If the power supply system cannot work normally, the power loads in other power distribution networks can be sequentially subjected to power supply load reduction according to the power supply priority.
So set up, can make power generation system can be with the higher normal work of electrical load of priority of the higher power consumption of priority of the priority of guaranteeing. For example, normal operation of electrical loads such as a production power supply system, a fire protection power supply system, a safety facility power supply system and the like is ensured.
Optionally, in the embodiment of the present invention, after the power supply load is reduced, the method may further include the following steps:
s6, acquiring a first signal; the first signal is used for representing power supply load shedding information;
s7, reporting the first signal to a server;
and S8, controlling the server to send the first signal to a user terminal.
The method comprises the steps of obtaining power supply load shedding information of power loads on a power distribution network, uploading the information to a server, and sending a first signal for representing the power supply load shedding information to a user terminal through a communication network through the server.
For example, the power supply load shedding information can be sent to terminal equipment of the on-duty personnel, so that the on-duty personnel can distribute power failure information to a power failure area in time and can make an emergency situation plan during power failure. The power supply load shedding information can be sent to the terminal equipment of the user, so that the user can know the relevant information of the power supply load shedding at the first time, the user can prepare correspondingly in advance, and the life experience of the user is improved.
Optionally, step S2 may further include:
s9, when the power load with higher power supply priority works abnormally, acquiring the working condition of each section of the power distribution network;
s10, if the distribution network is in an out-of-operation state, disconnecting the distribution network from the power load, or controlling the power load with lower power supply priority to supply power and reduce load;
and S11, if the power distribution network is in a working state, controlling the power load with lower power supply priority to supply power and reduce load.
And when the power load with higher power supply priority is found to work abnormally, the working condition of each section of power distribution network is obtained, and whether each section of power distribution network works normally is judged.
And when the distribution network is in an inoperative state, the distribution network is indicated to be in an abnormal operation. For example, when part of the power distribution networks are out of operation due to faults, the production load running in the power distribution section cannot run due to power loss, at the moment, a power load power supply switching warning program with lower power supply priority can be started according to the fault information of the part of the power distribution networks, a person on duty is informed to manually complete power load power supply switching commands with lower power supply priority on the power distribution networks one by one according to instructions and confirm the operation one by one, then power utilization balance data of the multi-section power distribution networks are obtained according to the power supply and power utilization balance relation in the regional power distribution networks, and the operation mode and the output power are adjusted by linking the energy storage system and the power generation system. And finally, starting and executing the power load power supply load shedding program with lower power supply priority according to the running real-time data.
When all the power distribution networks are in an inoperative state, namely when the faults quit operation or the total station is in power failure maintenance, the switches of all the power loads are quickly disconnected and isolated from the power distribution networks, and the rush repair or maintenance of the fault power distribution networks is guaranteed.
As an alternative implementation, all the electrical loads on the power distribution network may be connected to the utility power, and the electrical load shedding procedure with a lower power supply priority may be started to ensure that the electrical loads with a higher priority operate normally. For example, the normal operation of the electrical loads such as a production power supply system, a fire protection power supply system, a safety facility power supply system and the like is ensured. And then, the switches of all the electric loads of the power distribution section where the fault is located are quickly disconnected, and the power distribution section is isolated from the power distribution network, so that the emergency repair or overhaul of the power distribution network with the fault is ensured.
When the power distribution network is in a working state, the power distribution network works normally, only the power supply is insufficient, and therefore the power load with lower power supply priority is controlled to supply power and reduce the load.
Example 2
An embodiment of the present invention further provides a control device for a regional distribution network, where the control device includes:
the acquisition module is used for acquiring the working condition of the power load on each level of power distribution network in a multi-level power distribution network; wherein the power supply priority of the power distribution network corresponds to the power supply priority of the electrical load; for details, reference may be made to the related description of step S1 in the above method embodiment, which is not described herein again;
the control module is used for controlling the power distribution network with lower power supply priority to supply power and reduce load when the power load on the power distribution network with higher power supply priority does not work normally; for details, reference may be made to the related description of step S2 in the above method embodiment, and details are not repeated here.
So set up, can supply power according to the power supply priority when the electric wire netting power supply is not enough to the power load that the power supply priority is lower and subtract the year, make the distribution network can supply with the power after subtracting the year for the higher power load of priority to guarantee that the higher power load of power supply priority normally works.
Example 3
An embodiment of the present invention further provides a computer-readable storage medium, where the computer-readable storage medium stores computer instructions, and the computer instructions are configured to enable the computer to execute any one of the control methods.
The computer storage medium stores computer-executable instructions that can perform the control method in any of the method embodiments described above. The storage medium may be a magnetic Disk, an optical Disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a Flash Memory (Flash Memory), a Hard Disk (Hard Disk Drive, abbreviated as HDD), a Solid State Drive (SSD), or the like; the storage medium may also comprise a combination of memories of the kind described above.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. This need not be, nor should it be exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (6)
1. A control method for a regional distribution network is characterized by comprising the following steps:
acquiring the working condition of the power load on each section of power distribution network in a multi-section power distribution network; wherein there is a power priority for the electrical loads on each segment of the distribution network;
when the power load with higher power supply priority does not work normally, controlling the power load with lower power supply priority to supply power and reduce load;
acquiring a first signal; the first signal is used for representing power supply load shedding information;
reporting the first signal to a server; after reporting the first signal to a server, the method further comprises: controlling the server to send the first signal to a user terminal;
when the higher power consumption load of power supply priority does not normally work, the lower power consumption load of control power supply priority carries out the power supply and subtracts the year, still include: when the power load with higher power supply priority level works abnormally, the working condition of each section of the power distribution network is obtained; if the distribution network is in an inoperative state, the connection between the distribution network and the power load is disconnected, or the power load with lower power supply priority is controlled to supply power and reduce the load; if the power distribution network is in a working state, controlling the power load with lower power supply priority to supply power and reduce load; when part of the power distribution network is in an inoperative state, controlling the power load with lower power supply priority to supply power and reduce load; and if all the power distribution networks are in the non-operating state, disconnecting the power distribution networks from the power loads.
2. The method according to claim 1, wherein the controlling the power supply load with the lower power supply priority to perform power supply load shedding comprises:
and controlling the power loads with lower power supply priority to sequentially supply power and reduce the load.
3. The control method according to claim 2, further comprising, after the power loads with lower control power supply priority are sequentially power-supplied and de-loaded:
judging whether the power load with higher power supply priority can work normally or not;
if not, controlling the power loads in other power distribution networks to sequentially supply power and reduce the load according to the power supply priority.
4. The control method according to any one of claims 1 to 3, wherein when part of the distribution network is in an inactive state, controlling the electrical loads with lower power supply priority to perform power supply load shedding comprises:
when part of the power distribution networks are in an inoperative state, acquiring power utilization balance data of the multiple sections of power distribution networks;
adjusting the operation mode and the output power of the power generation system according to the power utilization balance data;
and controlling the power load with lower power supply priority to supply power and reduce load.
5. A control device for a regional power distribution network, comprising:
the acquisition module is used for acquiring the working condition of the power load on each level of power distribution network in a multi-level power distribution network; wherein the power supply priority of the power distribution network corresponds to the power supply priority of the electrical load;
the control module is used for controlling the power distribution network with lower power supply priority to supply power and reduce load when the power load on the power distribution network with higher power supply priority does not work normally;
acquiring a first signal; the first signal is used for representing power supply load shedding information;
reporting the first signal to a server; after reporting the first signal to a server, the method further comprises: controlling the server to send the first signal to a user terminal;
when the higher power consumption load of power supply priority does not normally work, the lower power consumption load of control power supply priority carries out the power supply and subtracts the year, still include: when the power load with higher power supply priority does not work normally, acquiring the working condition of each section of power distribution network; if the distribution network is in an inoperative state, the connection between the distribution network and the power load is disconnected, or the power load with lower power supply priority is controlled to supply power and reduce the load; if the power distribution network is in a working state, controlling the power load with lower power supply priority to supply power and reduce load; when part of the power distribution network is in an inoperative state, controlling the power load with lower power supply priority to supply power and reduce load; and if all the power distribution networks are in the non-operating state, the power distribution networks are disconnected from the power consumption loads.
6. A computer-readable storage medium characterized in that it stores computer instructions for causing the computer to execute the control method of any one of claims 1-4.
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| CN108134394B (en) * | 2017-11-02 | 2020-03-10 | 国网江苏省电力公司电力科学研究院 | Optimized load shedding method considering distributed power supply influence |
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