CN114784791A - Flexible platform area load balance control method, device and system - Google Patents
Flexible platform area load balance control method, device and system Download PDFInfo
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- CN114784791A CN114784791A CN202210281821.1A CN202210281821A CN114784791A CN 114784791 A CN114784791 A CN 114784791A CN 202210281821 A CN202210281821 A CN 202210281821A CN 114784791 A CN114784791 A CN 114784791A
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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
- H02J3/04—Circuit arrangements for ac mains or ac distribution networks for connecting networks of the same frequency but supplied from different sources
- H02J3/06—Controlling transfer of power between connected networks; Controlling sharing of load between connected 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
- H02J3/36—Arrangements for transfer of electric power between ac networks via a high-tension dc link
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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
- H02J2203/00—Indexing scheme relating to details of circuit arrangements for AC mains or AC distribution networks
- H02J2203/10—Power transmission or distribution systems management focussing at grid-level, e.g. load flow analysis, node profile computation, meshed network optimisation, active network management or spinning reserve management
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- Supply And Distribution Of Alternating Current (AREA)
Abstract
The invention discloses a load balancing control method, a device and a system for a flexible transformer area, wherein the method comprises the steps of calculating the transformer load rate of each transformer area and sharing the transformer load rate in real time; and when the transformer load rate of the transformer area N exceeds the load rate set limit value, controlling other transformer areas meeting preset requirements to carry out power support, wherein the preset requirements are that the transformer load rate is lower than the load rate set limit value, and the transformer load rate of the transformer area does not exceed the limit after the power support is finished. The invention can complete the load balance control of each transformer area, solve the problem of high load rate of the transformer area and realize the stable and economic operation of the transformer area.
Description
Technical Field
The invention belongs to the field of distribution automation equipment, and particularly relates to a load balancing control method, device and system for a flexible platform area.
Background
With the wide application of power electronic equipment in a low-voltage power distribution network, a power distribution station area is connected to the field of power distribution and utilization systems through a converter, and the power distribution and utilization system has a wide development prospect. Through the coordination controller at the transformer area side, the problems that capacity resources of the existing distribution transformer are abundant but cannot be fully utilized, capacity mismatch caused by large-scale access of the new energy charging pile to the transformer area under the background of new infrastructure is caused and the like are solved, the access capacity and the emergency supporting capacity of the distribution network to large-scale distributed new energy and electric vehicle loads are effectively improved, dynamic capacity increase and tide optimization scheduling of the distribution transformer area are realized, and the operation reliability of a distribution system is improved. The method comprises the steps of selecting distribution stations with unbalanced load rates, such as urban distribution network load dense areas, AC/DC load large-scale access and power supply demands for security, deploying a station side low-voltage DC flexible interconnection complete device, transforming a low-voltage bus coupler, realizing two station back-to-back loop closing or multi-interval multi-terminal DC interconnection loop closing on a DC side through an AC/DC conversion device, improving power supply reliability and power supply quality of AC side loads, and optimizing adjustment means of power flow among the stations.
Through the coordination controller at the station area side, the residual capacity of the plurality of station areas is comprehensively utilized to the maximum extent under the condition that the station areas are not expanded, the capacity of each station area under the increase of the coping load is reasonably distributed, the dynamic flexible regulation and control of the power of the plurality of station areas are realized, the pain points of dense load, high load, difficult expansion and the like of the current urban distribution network are effectively solved, the economic benefit of the distribution network is improved, and the comprehensive utilization method has wide social benefit.
Disclosure of Invention
Aiming at the problems, the invention provides a load balancing control method, a device and a system for a flexible transformer area, which can complete the load balancing control of each transformer area, solve the problem of high load rate of the transformer area and realize the stable and economic operation of the transformer area.
In order to achieve the technical purpose and achieve the technical effects, the invention is realized by the following technical scheme:
in a first aspect, the present invention provides a method for controlling load balancing in a flexible platform area, including:
calculating the load rate of the transformer of each area, and sharing the load rate in real time;
and when the transformer load rate of the transformer area N exceeds the load rate set limit value, controlling other transformer areas meeting preset requirements to carry out power support, wherein the preset requirements are that the transformer load rate is lower than the load rate set limit value, and the transformer load rate of the transformer area does not exceed the limit after the power support is finished.
Optionally, each area is connected through a converter, and each area is configured with a coordination controller; the coordination controller is used for calculating the load rate of the transformer, sharing information in real time, monitoring the running state of the converter and carrying out balance control on the load rate of the transformer in the transformer area.
Optionally, each coordination controller performs data interaction in a GOOSE communication manner.
Optionally, one of the coordination controllers is set as a master device, and the other coordination controllers are set as slave devices, the master device runs a load balancing strategy, and each slave device executes a power support command sent by the master device.
Optionally, when the load factor of the transformer in the transformer area N exceeds the load factor setting limit, controlling other transformer areas meeting the preset requirement to support power includes the following steps:
calculating the power requirement of the station area N;
and controlling the main device to search for a platform area with the transformer load rate lower than the load rate set limit, calculating whether the transformer load rate of the platform area with the transformer load rate lower than the load rate set limit is out of limit after supporting the platform area N according to the power requirement of the platform area N until the platform area meeting the requirement is found, and controlling the main device to issue a power supporting instruction to the platform area meeting the requirement so that the platform area carries out power support on the platform area N.
Optionally, the power support comprises the steps of:
and the main control device issues a power support instruction to the converter connected with the main control device, the power support instruction is issued to the coordination controller of the selected platform area through GOOSE communication, and the coordination controller issues an instruction to the converter of the platform area where the coordination controller is located.
In a second aspect, the present invention provides a flexible platform zone load balancing control apparatus, including:
the calculating module is used for calculating the load rate of the transformer in each transformer area and sharing the load rate in real time;
and the balance control module is used for controlling other transformer areas meeting the preset requirement to carry out power support when the transformer load rate of the transformer area N exceeds the load rate set limit value, wherein the preset requirement is that the transformer load rate is lower than the load rate set limit value, and the transformer load rate of the transformer area does not exceed the limit after the power support is finished.
In a third aspect, the invention provides a flexible platform area load balancing control device, which comprises a plurality of converters and a coordination controller;
each area is connected through a converter, and each area is provided with a coordination controller;
the coordination controller is used for calculating the load rate of the transformer, sharing information in real time, monitoring the running state of the converter and carrying out balance control on the load rate of the transformer in the transformer area.
Optionally, each coordination controller performs data interaction in a GOOSE communication manner.
Optionally, one of the coordination controllers is set as a master device, and the other coordination controllers are set as slave devices, the master device runs a load balancing strategy, and each slave device executes a power support command sent by the master device.
Optionally, when the load factor of the transformer in the transformer area N exceeds the load factor setting limit, controlling other transformer areas meeting the preset requirement to support power includes the following steps:
calculating the power requirement of the transformer area N;
and controlling the main device to search the transformer area with the transformer load rate lower than the set limit of the load rate, calculating whether the transformer load rate of the transformer area with the transformer load rate lower than the set limit of the load rate supports the transformer area N and then the transformer load rate of the transformer area per se is out of limit or not according to the power requirement of the transformer area N until the transformer area meeting the requirement is found, and controlling the main device to issue a power support instruction to the transformer area meeting the requirement so that the transformer area supports the power of the transformer area N.
In a fourth aspect, the present invention provides a flexible platform load balancing control system, which includes a storage medium and a processor;
the storage medium is to store instructions;
the processor is configured to operate in accordance with the instructions to perform the steps of the method according to any one of the first aspects.
Compared with the prior art, the invention has the following beneficial effects:
the invention provides a load balance control method, a device and a system for flexible transformer areas, wherein a plurality of areas are connected through a converter, each area is respectively provided with a coordination controller, wherein 1 coordination controller is used as a main device for performing main strategy operation, the other coordination controllers are used as slave devices for performing slave strategy operation, each coordination controller respectively calculates the transformer load rate of each area, and the slave devices transmit the calculated load rate of the area to the main device through a communication mode (such as a GOOSE communication mode). After receiving a load balancing command issued by a main station, a main device judges whether the load rate of a transformer of each area exceeds a limit value, if the load rate of the transformer of a certain area exceeds a set limit value of the load rate, whether other areas can provide power support is judged, and the load rate of the transformer of the area after power support does not exceed the limit value, the power support is carried out by the area, the main device issues power support amount to a slave device which is selected to be connected with the power area for supporting, the slave device controls a current transformer of the area to carry out power output, finally, the load balancing control of each area is completed, the problem of high load rate of the area is solved, and stable and economic operation of the area is realized.
Drawings
In order that the manner in which the present invention is more fully understood, a more particular description of the invention will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings, wherein:
FIG. 1 is a schematic diagram of a four-zone flexible interconnect system according to an embodiment of the present invention;
fig. 2 is a flowchart of load balancing control according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the scope of the invention.
The application of the principles of the present invention will now be described in detail with reference to the accompanying drawings.
Example 1
The method comprises the steps that multiple areas are connected through a current transformer (namely a flexible current transformer), each area is provided with a coordination controller, wherein 1 coordination controller operates as a main strategy (hereinafter referred to as a main device), the other coordination controllers operate as slave strategies (hereinafter referred to as slave devices), each coordination controller respectively calculates the transformer load rate of the area connected with the coordination controller, and the slave devices transmit the calculated load rate of the area to the main device in a GOOSE communication mode. After receiving a load balancing command issued by a main station, the main device judges whether the load rate of the transformer of each area exceeds a load rate setting limit value, if a certain area exceeds the load rate setting limit value, whether other areas can provide power support is judged, and the load rate of the area after power support does not exceed the limit value, then the area carries out power support, the main device issues power support amount to the slave device supporting the power area, and the slave device controls the converter of the area to carry out power output.
The embodiment of the invention provides a load balancing control method for a flexible platform area, which comprises the following steps:
calculating the transformer load rate of each area, and sharing in real time; in the specific implementation process, all the areas are connected through a converter, and each area is provided with a coordination controller; the coordination controller is used for calculating the load rate of the transformer, sharing information in real time, monitoring the running state of the converter and carrying out balance control on the load rate of the transformer in the transformer area. Preferably, each coordination controller performs data interaction through a GOOSE communication mode; setting one of the coordination controllers as a master device, setting the rest coordination controllers as slave devices, operating a load balancing strategy by the master device, and executing a power support instruction sent by the master device by each slave device;
and when the transformer load rate of the transformer area N exceeds the load rate set limit value, controlling other transformer areas meeting preset requirements to carry out power support, wherein the preset requirements are that the transformer load rate is lower than the load rate set limit value, and the transformer load rate of the transformer area does not exceed the limit after the power support is finished.
In a specific implementation manner of the embodiment of the present invention, when the transformer load rate of the transformer area N exceeds the load rate set limit, controlling other transformer areas meeting the preset requirement to perform power support includes the following steps:
calculating the power requirement of the station area N;
and controlling the main device to search for a platform area with the transformer load rate lower than the load rate set limit, calculating whether the transformer load rate of the platform area with the transformer load rate lower than the load rate set limit is out of limit after supporting the platform area N according to the power requirement of the platform area N until the platform area meeting the requirement is found, and controlling the main device to issue a power supporting instruction to the platform area meeting the requirement so that the platform area carries out power support on the platform area N. The power support comprises the steps of:
and the main control device issues a power support instruction to the converter connected with the main control device, the power support instruction is issued to the coordination controller of the selected platform area through GOOSE communication, and the coordination controller issues an instruction to the converter of the platform area where the coordination controller is located.
Example 2
Based on the same inventive concept as embodiment 1, an embodiment of the present invention provides a flexible platform area load balancing control apparatus, including:
the calculating module is used for calculating the load rate of the transformer in each transformer area and sharing the load rate in real time;
and the balance control module is used for controlling other transformer areas meeting the preset requirement to carry out power support when the transformer load rate of the transformer area N exceeds the load rate set limit value, wherein the preset requirement is that the transformer load rate is lower than the load rate set limit value, and the transformer load rate of the transformer area does not exceed the limit after the power support is finished.
Example 3
The embodiment of the invention provides a load balancing control device for a flexible platform area, which comprises a plurality of converters and a coordination controller;
each area is connected through a converter, and each area is provided with a coordination controller; in the specific implementation process, each coordination controller carries out data interaction in a GOOSE communication mode; setting one of the coordination controllers as a master device, setting the rest coordination controllers as slave devices, operating a load balancing strategy by the master device, and executing a power support instruction sent by the master device by each slave device;
the coordination controller is used for calculating the load rate of the transformer, sharing information in real time, monitoring the running state of the converter and carrying out balance control on the load rate of the transformer in the transformer area.
In a specific implementation manner of the embodiment of the present invention, when the load factor of the transformer in the transformer area N exceeds the load factor setting limit, the method for controlling other transformer areas meeting the preset requirement to support power includes the following steps:
calculating the power requirement of the transformer area N;
and controlling the main device to search for a platform area with the transformer load rate lower than the load rate set limit, calculating whether the transformer load rate of the platform area with the transformer load rate lower than the load rate set limit is out of limit after supporting the platform area N according to the power requirement of the platform area N until the platform area meeting the requirement is found, and controlling the main device to issue a power supporting instruction to the platform area meeting the requirement so that the platform area carries out power support on the platform area N.
The operation principle of the equalization control device in the embodiment of the present invention is described in detail below with reference to a specific embodiment and fig. 2.
1) The multiple areas are connected through the converter, 1 coordination controller is configured in each area, and each coordination controller calculates the load rate of the area and monitors the running state of the converter.
2) And transmitting the transformer load rate of the transformer area to other transformer areas connected through the converter in a GOOSE communication mode, and sharing the transformer load rate of each transformer area in real time.
3) And setting 1 coordination controller as a master coordination controller (master device), and setting the rest coordination controllers as slave coordination controllers (slave devices), wherein the master coordination controller runs a load balancing strategy, and the slave coordination controllers execute the instructions of the master coordination controller.
4) And setting a load rate setting limit value of each transformer area, transmitting the load rate setting limit value of the transformer area to other transformer areas connected through a converter in a GOOSE communication mode, and sharing the load rate limit value of the transformer of each transformer area in real time.
5) And after receiving the load balancing control command sent by the master station, the master coordination controller judges whether the transformer load rate of each area meets the load rate limit value, and if the transformer load rate of a certain area N exceeds the load rate set limit value, a load balancing control strategy is executed.
6) And the main coordination controller calculates the power shortage of the off-limit platform area N of the load rate, searches for a supportable platform area, and searches for the platform area with the load rate lower than the limit value and without off-limit of the load rate after the power shortage is supported.
7) If the found station area meeting the conditions is the station area where the main coordination controller is located, the main coordination controller sends an instruction to the current transformer of the station area; if the area meeting the conditions is other areas (such as an area M) connected with the area, the main coordination controller issues instructions to other interconnected areas through GOOSE communication, and then the slave coordination controller issues instructions to the converter of the area where the slave coordination controller is located; if no station area satisfying the condition is found, the load balancing control operation is not performed.
Taking fig. 1 as an example, the system is a four-zone flexible interconnection system, the limit values of the load rates of all zones are 60%, and the rated capacity of the distribution transformer is 500 kw. The flexible platform area load balancing control device has the following working process:
1) the four areas are connected through a converter, 1 coordination controller is configured in each area, each coordination controller calculates the load rate of the area, wherein the load rate of the area 1 is 55%, the load rate of the area 2 is 75%, the load rate of the area 3 is 40%, the load rate of the area 4 is 60%, and the operation state of the converter is monitored.
2) And sending the load rate of the transformer area to other transformer areas connected through the converter in a GOOSE communication mode, and sharing the load rate of the transformer of each transformer area in real time.
3) And setting the coordination controller of the platform area 1 as a master coordination controller, and setting the rest coordination controllers as slave coordination controllers, wherein the master coordination controller runs a load balancing strategy, and the slave coordination controllers execute the instructions of the master coordination controller.
4) Setting the load rate limit value of each transformer area to be 60%, sending the load rate limit value of the transformer area to other transformer areas connected through a converter in a GOOSE communication mode, and sharing the load rate limit value of the transformer of each transformer area in real time.
5) And after receiving the load balancing control command, the main coordination controller judges whether the load rate of each transformer meets the load rate limit value, and if the load rate of the transformer area 2 exceeds the limit value, the main coordination controller executes a load balancing control strategy.
6) The main coordination controller calculates that the power of the load rate out-of-limit district is 15% less, searches for the supportable district, and searches for the district with the load rate lower than the limit value and the load rate is not out-of-limit after the power shortage after the support.
7) Wherein the load rate of the platform area 1 is lower than the limit value but the load rate is out of limit after supporting, and the supporting condition is not met; the load factor of the platform area 4 is not lower than a limit value and does not meet the supporting condition; and if the load rate of the zone 3 is lower than the limit value and the load rate is not out of limit after supporting and the supporting condition is met, the coordination controller of the zone 1 issues an instruction of 15% to the coordination controller of the zone 3, and the coordination controller of the zone 3 issues an instruction to the converter of the zone 3 to complete load balancing operation.
8) After the load balancing control, the load rate of the platform area 1 is 55%, the load rate of the platform area 2 is 60%, the load rate of the platform area 3 is 55%, the load rate of the platform area 4 is 60%, and the four platform areas all operate in a reasonable interval.
Example 4
Based on the same inventive concept as embodiment 1, embodiment 1 of the present invention provides a flexible platform load balancing control system, including a storage medium and a processor;
the storage medium is to store instructions;
the processor is configured to operate in accordance with the instructions to perform the steps of the method according to any one of the first aspects.
The foregoing shows and describes the general principles and features of the present invention, together with the advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, and such changes and modifications are within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (12)
1. A flexible platform area load balancing control method is characterized by comprising the following steps:
calculating the transformer load rate of each area, and sharing in real time;
and when the transformer load rate of the transformer area N exceeds the load rate set limit value, controlling other transformer areas meeting preset requirements to carry out power support, wherein the preset requirements are that the transformer load rate is lower than the load rate set limit value, and the transformer load rate of the transformer area does not exceed the limit after the power support is finished.
2. The flexible platform area load balancing control method according to claim 1, characterized in that: each area is connected through a converter, and each area is provided with a coordination controller; the coordination controller is used for calculating the load rate of the transformer, sharing information in real time, monitoring the running state of the converter and carrying out balance control on the load rate of the transformer in the transformer area.
3. The flexible platform area load balancing control method according to claim 2, characterized in that: and each coordination controller carries out data interaction in a GOOSE communication mode.
4. The flexible platform area load balancing control method according to claim 2, characterized in that: and setting one of the coordination controllers as a master device, and setting the rest coordination controllers as slave devices, wherein the master device runs a load balancing strategy, and each slave device executes a power support command sent by the master device.
5. The flexible platform area load balancing control method according to claim 2, characterized in that: when the load rate of the transformer area N exceeds the set limit value of the load rate, other transformer areas meeting the preset requirement are controlled to carry out power support, and the method comprises the following steps:
calculating the power requirement of the transformer area N;
and controlling the main device to search the transformer area with the transformer load rate lower than the set limit of the load rate, calculating whether the transformer load rate of the transformer area with the transformer load rate lower than the set limit of the load rate supports the transformer area N and then the transformer load rate of the transformer area per se is out of limit or not according to the power requirement of the transformer area N until the transformer area meeting the requirement is found, and controlling the main device to issue a power support instruction to the transformer area meeting the requirement so that the transformer area supports the power of the transformer area N.
6. The flexible platform zone load balancing control method according to claim 5, wherein: the power support includes the steps of:
the main control device issues a power supporting instruction to a converter connected with the main control device, the power supporting instruction is issued to a coordination controller of a selected zone through GOOSE communication, and then the coordination controller issues an instruction to the converter of the zone where the coordination controller is located.
7. A flexible platform district load balancing controlling means characterized in that includes:
the calculating module is used for calculating the load rate of the transformer in each transformer area and sharing the load rate in real time;
and the balance control module is used for controlling other transformer areas meeting the preset requirement to carry out power support when the transformer load rate of the transformer area N exceeds the load rate set limit value, wherein the preset requirement is that the transformer load rate is lower than the load rate set limit value, and the transformer load rate of the transformer area does not exceed the limit after the power support is finished.
8. A flexible platform zone load balancing control device is characterized by comprising a plurality of converters and a coordination controller;
each area is connected through a converter, and each area is provided with a coordination controller;
the coordination controller is used for calculating the load rate of the transformer, sharing information in real time, monitoring the running state of the converter and carrying out balance control on the load rate of the transformer in the transformer area.
9. The flexible platform load balancing control device according to claim 7, wherein: and each coordination controller performs data interaction in a GOOSE communication mode.
10. The flexible platform load balancing control device according to claim 7, wherein: and setting one of the coordination controllers as a master device, and setting the rest coordination controllers as slave devices, wherein the master device runs a load balancing strategy, and each slave device executes a power support command sent by the master device.
11. The flexible platform load balancing control device according to claim 7, wherein: when the load rate of the transformer area N exceeds the set limit value of the load rate, other transformer areas meeting the preset requirement are controlled to carry out power support, and the method comprises the following steps:
calculating the power requirement of the station area N;
and controlling the main device to search for a platform area with the transformer load rate lower than the load rate set limit, calculating whether the transformer load rate of the platform area with the transformer load rate lower than the load rate set limit is out of limit after supporting the platform area N according to the power requirement of the platform area N until the platform area meeting the requirement is found, and controlling the main device to issue a power supporting instruction to the platform area meeting the requirement so that the platform area carries out power support on the platform area N.
12. A flexible platform district load balancing control system which characterized in that: comprising a storage medium and a processor;
the storage medium is used for storing instructions;
the processor is configured to operate in accordance with the instructions to perform the steps of the method according to any one of claims 1 to 6.
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| CN202210281821.1A CN114784791A (en) | 2022-03-22 | 2022-03-22 | Flexible platform area load balance control method, device and system |
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| CN202210281821.1A CN114784791A (en) | 2022-03-22 | 2022-03-22 | Flexible platform area load balance control method, device and system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116154769A (en) * | 2023-04-17 | 2023-05-23 | 西安领充创享新能源科技有限公司 | Transformer overload processing method for transformer area, flexible transformer area system and storage medium |
| CN117293823A (en) * | 2023-11-21 | 2023-12-26 | 国网浙江省电力有限公司金华供电公司 | Demand positioning method for electric energy transmission between stations by using AC/DC mutual aid device |
-
2022
- 2022-03-22 CN CN202210281821.1A patent/CN114784791A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116154769A (en) * | 2023-04-17 | 2023-05-23 | 西安领充创享新能源科技有限公司 | Transformer overload processing method for transformer area, flexible transformer area system and storage medium |
| CN117293823A (en) * | 2023-11-21 | 2023-12-26 | 国网浙江省电力有限公司金华供电公司 | Demand positioning method for electric energy transmission between stations by using AC/DC mutual aid device |
| CN117293823B (en) * | 2023-11-21 | 2024-01-26 | 国网浙江省电力有限公司金华供电公司 | Demand positioning method for electric energy transmission between stations by using AC/DC mutual aid device |
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