CN214479630U - Centralized voltage control device of active power distribution network - Google Patents
Centralized voltage control device of active power distribution network Download PDFInfo
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- CN214479630U CN214479630U CN202022929467.8U CN202022929467U CN214479630U CN 214479630 U CN214479630 U CN 214479630U CN 202022929467 U CN202022929467 U CN 202022929467U CN 214479630 U CN214479630 U CN 214479630U
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- 230000005540 biological transmission Effects 0.000 claims abstract description 39
- 230000001105 regulatory effect Effects 0.000 claims abstract description 17
- 238000004891 communication Methods 0.000 claims description 22
- 230000001276 controlling effect Effects 0.000 claims description 13
- 239000003990 capacitor Substances 0.000 claims description 9
- 238000010248 power generation Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 description 4
- 230000035699 permeability Effects 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/70—Smart grids as climate change mitigation technology in the energy generation sector
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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
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/12—Monitoring or controlling equipment for energy generation units, e.g. distributed energy generation [DER] or load-side generation
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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
- Y04S20/242—Home appliances
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- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The utility model relates to a centralized voltage control device of an active power distribution network, which comprises a power supply network, a voltage control circuit and a voltage control circuit, wherein the power supply network is connected with the power supply network; the acquisition control devices are respectively connected with the electrical equipment participating in regulation and control and the important nodes in the power distribution network so as to acquire and transmit information data of the power distribution network and receive and execute regulation and control instructions of the electrical equipment; regulate and control the device, regulate and control the device and control the pressure regulating equipment in the distribution network according to the distribution network information data that collection control device gathered to send the regulation and control instruction to electrical equipment, transmission device one end is connected with a plurality of collection control device of the aforesaid, and the other end is connected with the regulation and control device, is collection control device and regulates and control the information transmission passageway between the device, the utility model discloses can realize the distribution network and the real-time information exchange of centralized voltage control device, make the user in time know the running state of each part of distribution network, carry out centralized voltage control to the information physics system under the initiative distribution network.
Description
Technical Field
The utility model relates to an initiative distribution network technical field, concretely relates to centralized voltage control device of initiative distribution network.
Background
The high permeability of a distributed power supply is generally merged into a power distribution network, however, the operation of a system after a large amount of clean energy is connected to the power grid can cause the reversal of power flow, so that the voltage of a terminal node of a radial power distribution network rises, under the condition, the power supply quality of a load connected with the terminal node is obviously influenced, and meanwhile, the loss on a line and the loss of equipment can also be increased, so that more renewable energy sources are difficult to be merged into the power distribution network. At the moment, voltage control is an extremely important technical means for realizing safe and reliable power supply of various types of energy sources in the active power distribution network.
At the present stage, after a large number of distributed power supplies are connected to the grid, the voltage control methods widely adopted by the active power distribution network can be divided into two types, namely distributed voltage control and centralized voltage control. In some places where the permeability of the distributed power supply is not too high, the voltage of the system can be restored to a qualified range only by adopting a distributed voltage control mode or a distributed area autonomous control mode based on a simple communication system. However, in a system with high permeability, the randomness of the DG output and the complexity of the resource on the demand side greatly increase the difficulty of system voltage regulation, and it is difficult to solve the complicated tidal current change situation by simply using distributed control as the only control means, and it is also difficult to cope with the voltage fluctuation and out-of-limit problems.
Therefore, a centralized voltage control device capable of solving the complicated tidal current change condition of the active power distribution network is needed.
SUMMERY OF THE UTILITY MODEL
For solving the drawback of the prior art, the utility model provides a can carry out centralized voltage control's device to the initiative distribution network, adopted following technical scheme:
a centralized voltage control device of an active power distribution network comprises;
the system comprises a plurality of acquisition control devices, a plurality of network management devices and a plurality of network management devices, wherein the acquisition control devices are respectively connected with electrical equipment participating in regulation and control and important nodes in the power distribution network so as to acquire and transmit information data of the power distribution network and receive and execute regulation and control instructions of the electrical equipment;
the regulating and controlling device controls the voltage regulating equipment in the power distribution network according to the power distribution network information data acquired by the acquisition and control device and sends a regulating and controlling instruction to the electrical equipment;
and one end of the transmission device is connected with the plurality of acquisition control devices, and the other end of the transmission device is connected with the regulation and control device, and is an information transmission channel between the acquisition control devices and the regulation and control device.
Further, the acquisition control device comprises;
the transformer unit is connected with the electrical equipment or the important node and is used for measuring and uploading information data such as voltage, current, power, switch state and the like of the electrical equipment or the important node;
and the controller unit is connected with the mutual inductor unit and is used for receiving and executing a regulation and control instruction of the electrical equipment.
Further, the acquisition control device further comprises;
and one end of the communication unit is connected with the controller unit, and the other end of the communication unit is connected with the transmission device and is a channel for information transmission between the controller unit and the transmission device.
Further, the transmission device is a communication link.
Further, the communication link is a wired network.
Further, the communication link is a wireless network.
Further, the electrical equipment comprises an on-load tap changer, a shunt capacitor and a distributed power supply;
further, in the above-mentioned case,
the on-load tap changer is connected with the power generation unit through the incoming line transmission line;
the parallel capacitors are connected in parallel to the head end and the tail end of the power transmission line;
the distributed power supply is connected in parallel to the tail end of the power transmission line.
By adopting the technical scheme, the beneficial effects of the utility model are that:
the utility model discloses a set up centralized voltage control device behind distribution network electrical equipment and important node, centralized voltage control device can carry out real time monitoring to information such as the voltage current power of distribution network, and when trend appears in the operation of distribution network system and send over again, centralized voltage control device can realize the centralized voltage control to electrical equipment through the regulation and control instruction. The centralized voltage control device can realize real-time information exchange of the power distribution network and the centralized voltage control device, so that a user can know the running state of each part of the power distribution network in time and perform centralized voltage control on an information physical system under the active power distribution network.
Drawings
FIG. 1 is a schematic structural diagram of an apparatus according to an embodiment of the present invention
The system comprises an acquisition control device 1, a mutual inductor unit 11, a controller unit 12, a communication unit 13, a transmission device 2, a regulation and control device 3, an on-load tap changer 4, a parallel capacitor 5 and a distributed power supply 6.
Detailed Description
In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. Exemplary embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
For solving the complicated trend situation of change of distribution network among the prior art, the utility model provides a centralized voltage control device of initiative distribution network, technical scheme is as follows:
a centralized voltage control device of an active power distribution network comprises;
the system comprises a plurality of acquisition control devices 1, a transmission device 2 and a regulation and control device 3;
the acquisition control device is respectively connected with the electrical equipment participating in regulation and control and the important node in the power distribution network so as to acquire and transmit information data of the power distribution network and receive and execute a regulation and control instruction of the electrical equipment;
the regulating and controlling device 3 controls the voltage regulating equipment in the power distribution network according to the power distribution network information data acquired by the acquisition and control device 1 and sends a regulating and controlling instruction to the electrical equipment;
one end of the transmission device 2 is connected with the plurality of acquisition control devices 1, and the other end is connected with the regulation and control device 3, and is an information transmission channel between the acquisition control devices 1 and the regulation and control device 3.
The electrical equipment of the utility model refers to an on-load tap changer 4, a parallel capacitor 5 and a distributed power supply 6; as shown in fig. 1, an on-load tap changer 4 is connected with a power generation unit through an incoming transmission line; the parallel capacitor 5 is connected in parallel with the head end and the tail end of the power transmission line; the distributed power source 6 is connected in parallel to the end of the transmission line.
The utility model discloses an electrical equipment and important node connection of participation regulation and control in centralized voltage control device and the distribution network for information data such as the voltage and current of real-time supervision distribution network, when data had unusually, regulation and control device can carry out long-range coordinated control to electrical equipment according to the information data of distribution network, with electrical equipment's information data control in normal threshold value, when preventing that a large amount of distributed power from inserting, the trend is sent back to the emergence of situation.
In one embodiment, the acquisition control device 1 is used as an interface for acquiring and controlling voltage and current information data of a power distribution network, and includes a transformer unit 11 and a controller unit 12, wherein the transformer unit 11 is connected with an electrical device or an important node and is used for measuring and uploading information data such as voltage, current, power and switch state of the electrical device or the important node; the controller unit 12 is connected with the transformer unit 11 and is used for receiving and executing a regulation and control instruction of the electrical equipment; further, the acquisition control device 1 may further include a communication unit 13, one end of the communication unit 13 is connected to the controller unit 12, and the other end of the communication unit 13 is connected to the transmission device 2, and is a channel for information transmission between the controller unit 12 and the transmission device 2.
In one embodiment, the transmission device 2 is a communication link, and may be a wired network communication link, such as twisted pair or optical fiber, or a wireless network communication link such as microwave, and generally, the wired network has higher reliability than the wireless network.
The utility model discloses main adaptation is in the information physics system of initiative distribution network, the utility model discloses a data acquisition device 1, transmission device 2, regulation and control device 3 is as information domain equipment, with on-load tap changing transformer 4, the physics domain equipment of distribution networks such as shunt capacitor 5 and distributed power 6 is connected, realize the interaction of the information of information domain and physics domain, and data acquisition device 1 is as information domain terminal equipment, direct and physics domain equipment is connected, play the voltage current power and the on-off state information measurement with physics domain equipment and upload to regulation and control device 3, receive simultaneously and carry out the remote control instruction of regulation and control device 3 to physics domain equipment.
The working process of the centralized voltage control device of the present invention is detailed below with reference to fig. 1:
as shown in fig. 1, the on-load tap changer 4, the parallel capacitor 5 and the distributed power supply 6 are respectively connected with a transformer unit 11 in the data acquisition device 1, and the transformer unit 11 can measure and upload information of voltage, current and power and on-off state of the 3 devices;
the controller unit 12 is connected to the transformer unit 11, and when receiving the information data, the controller unit 12 sends a transmission instruction, and transmits the information data to the control device 3 after passing through the communication unit 13 and the transmission device 2 (the solid arrow in fig. 1 is the information data transmission direction);
the regulating and controlling device 3 coordinates and controls the voltage regulating equipment to complete a control process according to the received data information, the specific control process comprises two steps of transformer substation voltage control and reactive equipment control, in the transformer substation voltage control, the regulating and controlling device 3 judges whether the transformer substation voltage needs to be changed according to the data information, determines a gear after tap adjustment and sends a regulating and controlling instruction; if the voltage control of the transformer substation cannot enable all the node voltages to be within the threshold range, the regulating and controlling device 3 issues a regulating and controlling instruction for calling the reactive power equipment, and the reactive power equipment is controlled. A tap position adjustment regulation instruction sent by the regulation and control device 3 or a regulation and control instruction for calling reactive equipment passes through the transmission device 2 and the communication unit 13 and is then transmitted to the controller unit 12 (a dotted arrow in fig. 1 is a regulation and control instruction transmission direction);
after receiving the regulation and control instruction, the controller unit 12 executes regulation and control on the electrical equipment, and transmits the regulation and control signal to the corresponding electrical equipment to be regulated through the transformer unit 11, thereby finally realizing regulation and control on the voltage of the electrical equipment.
Although the present invention has been described in detail with reference to the embodiments so that those skilled in the art can understand it, the embodiments may be modified or changed without departing from the spirit of the present invention within the scope of the claims.
Claims (8)
1. The utility model provides a centralized voltage control device of active power distribution network which characterized in that: comprises the following steps of;
the system comprises a plurality of acquisition control devices (1), wherein the acquisition control devices (1) are respectively connected with electrical equipment and important nodes participating in regulation and control in the power distribution network so as to acquire and transmit information data of the power distribution network and receive and execute regulation and control instructions of the electrical equipment;
the regulating and controlling device (3) controls the voltage regulating equipment in the power distribution network according to the power distribution network information data collected by the collecting and controlling device (1) and sends a regulating and controlling instruction to the electrical equipment;
one end of the transmission device (2) is connected with the plurality of acquisition control devices (1), and the other end of the transmission device (2) is connected with the regulation and control device (3) and is an information transmission channel between the acquisition control devices (1) and the regulation and control device (3).
2. The centralized voltage control apparatus of claim 1, wherein: the acquisition control device (1) comprises;
the transformer unit (11) is connected with the electrical equipment or the important node, and is used for measuring and uploading voltage, current, power and switch state information data of the electrical equipment or the important node;
the controller unit (12) is connected with the transformer unit (11) and used for receiving and executing a regulation and control instruction of the electrical equipment.
3. The centralized voltage control apparatus of claim 2, wherein: the acquisition control device (1) further comprises;
and the communication unit (13), one end of the communication unit (13) is connected with the controller unit (12), the other end of the communication unit is connected with the transmission device (2), and the communication unit is a channel for information transmission between the controller unit (12) and the transmission device (2).
4. The centralized voltage control apparatus of claim 1, wherein: the transmission device (2) is a communication link.
5. The centralized voltage control apparatus of claim 4, wherein: the communication link is a wired network.
6. The centralized voltage control apparatus of claim 4, wherein: the communication link is a wireless network.
7. The centralized voltage control apparatus of claim 1, wherein:
the electrical equipment comprises an on-load tap changer (4), a shunt capacitor (5) and a distributed power supply (6).
8. The centralized voltage control apparatus of claim 7, wherein:
the on-load tap changer (4) is connected with the power generation unit through an incoming line transmission line;
the parallel capacitor (5) is connected in parallel with the head end and the tail end of the power transmission line;
the distributed power supply (6) is connected in parallel to the tail end of the power transmission line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022929467.8U CN214479630U (en) | 2020-12-07 | 2020-12-07 | Centralized voltage control device of active power distribution network |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022929467.8U CN214479630U (en) | 2020-12-07 | 2020-12-07 | Centralized voltage control device of active power distribution network |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214479630U true CN214479630U (en) | 2021-10-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022929467.8U Expired - Fee Related CN214479630U (en) | 2020-12-07 | 2020-12-07 | Centralized voltage control device of active power distribution network |
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| CN (1) | CN214479630U (en) |
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2020
- 2020-12-07 CN CN202022929467.8U patent/CN214479630U/en not_active Expired - Fee Related
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Granted publication date: 20211022 |