CN222016263U - An intelligent microgrid control device suitable for oil and gas field well sites - Google Patents
An intelligent microgrid control device suitable for oil and gas field well sites Download PDFInfo
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- CN222016263U CN222016263U CN202323573246.1U CN202323573246U CN222016263U CN 222016263 U CN222016263 U CN 222016263U CN 202323573246 U CN202323573246 U CN 202323573246U CN 222016263 U CN222016263 U CN 222016263U
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Abstract
The utility model belongs to the technical field of oil and gas field control, and provides intelligent micro-grid control equipment suitable for an oil and gas field well site, which comprises the following components: the grid-connected electric energy meter measuring unit is connected with the electric energy meter reading platform through the Internet; the intelligent gateway is respectively connected with a multifunctional meter monitoring unit, an inverter monitoring unit and a grid-connected breaker protection measurement and control unit; the multifunctional meter monitoring unit, the inverter monitoring unit and the grid-connected breaker protection measurement and control unit are arranged in parallel; the switch is connected with the intelligent gateway; and the control center is respectively in communication connection with the intelligent gateway and the switch. According to the utility model, the units such as the grid-connected electric energy meter measuring unit, the multifunctional meter monitoring unit, the inverter monitoring units, the grid-connected breaker protection and measurement and control unit, the intelligent gateway and the switch are integrated in the control cabinet, so that a micro-grid structure is formed, and the application and development of micro-grid technology are facilitated.
Description
Technical Field
The utility model belongs to the technical field of oil and gas field control, and particularly relates to intelligent micro-grid control equipment suitable for oil and gas field well sites.
Background
With a large amount of distributed new energy sources connected into the oil-gas field distribution network system, the original unidirectional flow power transmission mode is changed, and the bidirectional flow also changes the fault characteristics of the oil-gas field distribution network system. The micro-grid is a novel distributed energy organization mode and structure for integrating the advantages of distributed power generation and weakening the impact and negative influence of the distributed power generation on the grid. The distributed power generation unit, the power network and the terminal user are directly connected together in a local area through integrating the distributed power generation unit and the power distribution network, so that the optimization of the structure and the configuration can be conveniently carried out, the utilization efficiency of energy sources is improved, and the development of the oil-gas field power grid to the green, environment-friendly and energy-saving directions is promoted. Therefore, a multi-element micro-grid system consisting of solar power generation, wind power generation, micro-combustion engines, fuel cells, energy storage, power distribution systems and the like is or will become a mainstream development trend of an oil and gas field power system.
The micro-grid has dual roles, and can be regarded as a simple schedulable load for an electric power enterprise, and can respond within a few seconds to meet the requirement of a transmission system; for users, the micro-grid can be used as a customizable power supply to meet the diversified demands of users, such as increasing the reliability of local power supply, reducing feeder loss, providing support to local voltage and frequency through the micro-grid energy storage element, or being used as an uninterruptible power supply, and improving the correction of voltage sag. The design concept around the energy demand of the whole system and the power supply concept of providing the users with diversified power quality are two important features of the micro grid. Future power distribution systems will be a hybrid of conventional power distribution systems and a large number of micro-grids distributed within the power distribution system power supply area, forming an internet-like model.
The micro-grid can be regarded as a structure of a future power system and can be used as a third-level power grid after a transmission grid and a distribution network; compared with the current large power grid, the structure has remarkable economic and environmental benefits. Distributed generation can be applied to the power system and take full advantage of its greatest potential by building up a micro grid. Micro-grids and distributed power sources, while primarily associated with distribution networks, will have a tremendous and profound impact on the overall power system.
At present, the industry generally lacks the intelligent design aiming at the photovoltaic grid-connected control cabinet, the 4G communication bar scheme is generally adopted for monitoring, only the inverter data is collected, the equipment such as a multifunctional meter and a circuit breaker adopts an on-site control mode, the oil and gas field well sites are generally located in remote areas, the distribution is more dispersed, and the management control and the power grid safety of distributed energy power generation are important for the oil and gas field industry, so that the intelligent design of the photovoltaic grid-connected control cabinet is realized, the information collection, the control and the uploading are integrated, and the intelligent design is integrated into the Internet of things of the oil and gas field, so that the intelligent design becomes a key problem to be solved urgently.
Disclosure of utility model
In order to solve at least one problem in the background technology, the utility model provides intelligent micro-grid control equipment suitable for an oil-gas field well site.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
an intelligent microgrid control device suitable for use in an oil and gas field wellsite, comprising:
the grid-connected electric energy meter measuring unit is connected with the electric energy meter reading platform through the Internet;
The intelligent gateway is respectively connected with a multifunctional meter monitoring unit, an inverter monitoring unit and a grid-connected breaker protection measurement and control unit;
The multifunctional meter monitoring unit, the inverter monitoring unit and the grid-connected breaker protection measurement and control unit are arranged in parallel;
The switch is connected with the intelligent gateway;
And the control center is respectively in communication connection with the intelligent gateway and the switch.
Preferably, the grid-connected electric energy meter measuring unit adopts an electric energy meter, and the model is DT (S) ZY1277 (C) -M.
Preferably, the multifunction table monitoring unit employs a multifunction table, model number PD194Z-AC.
Preferably, a plurality of inverter monitoring units are arranged in parallel, and the collected working data comprises: ac-dc side voltage, current, ac side active power, reactive power, power factor, inverter temperature, solar power generation, monthly power generation, annual power generation, cumulative power generation, inverter maximum active and reactive output range.
Preferably, the intelligent gateway is connected with the multifunctional meter monitoring unit, the inverter monitoring unit and the grid-connected breaker protection measurement and control unit by adopting an RS485 cable.
Preferably, the intelligent gateway is connected with the switch through a network cable.
Preferably, the control center is connected with the switch through a network cable and is connected with the intelligent gateway through wifi.
Preferably, the system further comprises a control cabinet and a wire clamp, wherein the grid-connected electric energy meter measuring unit, the multifunctional meter monitoring unit, the inverter monitoring units, the grid-connected breaker protection measurement and control unit, the intelligent gateway and the switch are all arranged in the control cabinet;
the wire clamp is used for installing an RS485 cable and a network cable.
Preferably, the wire clip comprises a base and a jacket;
the base is fixed on the inner surface of the control cabinet, and the jacket is fixed on the base and is of an open ring structure and used for fixing the RS485 cable and the net wire.
Preferably, one end of the jacket is provided with a fastening pin in a sliding manner, the upper end of the fastening pin is an outer hexagonal knob, and the lower end of the fastening pin is a waist-shaped pin head;
One end surface of the jacket mounting fastening pin is also provided with a metal sheet, the fastening pin is in sliding fit with the metal sheet, and a spring is arranged between the metal sheet and the outer hexagonal knob;
A columnar fastening groove is formed in the base, a lower friction layer is arranged at the top of the inner surface of the fastening groove, a guide hole is formed in the top of the columnar fastening groove, and the guide hole extends to the surface of the base and is in clearance fit with the pin head;
The lower surface of the pin head is also provided with an upper friction layer.
The utility model has the beneficial effects that:
1. According to the utility model, the units such as the grid-connected electric energy meter measuring unit, the multifunctional meter monitoring unit, the inverter monitoring units, the grid-connected breaker protection and measurement and control unit, the intelligent gateway and the switch are integrated in the control cabinet, so that a micro-grid structure is formed, and the application and development of micro-grid technology are facilitated;
2. According to the utility model, by arranging modularized information acquisition equipment and agreeing with a standardized communication transmission protocol, a unified energy source material conjuncted system is established, and measurable, considerable and controllable distributed energy sources of oil and gas fields and well sites are realized;
3. according to the utility model, the fastening pin is used for replacing the traditional screw in the wire clamp, so that the cable can be directly and manually locked in the wiring process, the use of a screwdriver is reduced, and the wiring efficiency is improved.
Additional features and advantages of the utility model will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model. The objectives and other advantages of the utility model may be realized and attained by the structure particularly pointed out in the written description and drawings.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 illustrates a topology of an intelligent micro-grid control device of the present utility model suitable for use in an oil and gas field wellsite;
FIG. 2 shows a graph of data collected by the device of FIG. 1;
FIG. 3 shows a schematic diagram of a control cabinet of an intelligent micro-grid control device suitable for use in an oil and gas field wellsite of the present utility model;
FIG. 4 shows a schematic structural view of the wire clip of the present utility model;
FIG. 5 shows a schematic view of a partial structure of a fastening pin of the present utility model;
FIG. 6 shows a grid tie point definition schematic.
In the figure: 1. the grid-connected electric energy meter measuring unit; 2. a multi-functional table monitoring unit; 3. an inverter monitoring unit; 4. the grid-connected breaker protects the measurement and control unit; 5. an intelligent gateway; 6. a switch; 7. a control center; 8. an RS485 cable; 9. a net wire; 10. an electric energy collection and landing platform; 11. a control cabinet; 12. a wire clamp; 1201. a base; 1202. a jacket; 1203. a metal sheet; 1204. a fastening pin; 1205. a spring; 1206. a pin head; 1207. a guide hole; 1208. a fastening groove; 1209. a lower friction layer; 1210. and (3) an upper friction layer.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
An intelligent micro-grid control device suitable for an oil and gas field well site, as shown in fig. 1, comprises: the grid-connected electric energy meter measuring unit 1 is connected with the electric energy collecting and leveling platform 10 through the Internet; the multifunctional meter monitoring unit 2 is used for collecting voltage, current and harmonic waves of the grid-connected point; a plurality of inverter monitoring units 3 for collecting working data of the inverter; and the grid-connected breaker protection measurement and control unit 4 is used for. The intelligent gateway 5 is respectively connected with the multifunctional meter monitoring unit 2, the inverter monitoring unit 3 and the grid-connected breaker protection measurement and control unit 4; a switch 6 connected to the intelligent gateway 5; the control center 7 is respectively in communication connection with the intelligent gateway 5 and the switch 6.
The grid-connected electric energy meter measuring unit 1 integrates the functions of metering, displaying, communication, monitoring, cost control and the like, and can precisely meter three-phase forward and reverse active electric energy, four-quadrant reactive electric energy and required quantity in a time-sharing manner; precisely measuring three-phase voltage, current, active power, reactive power, power factor and the like in real time; monitoring and recording events such as pressure loss, current loss, phase failure and the like; the remote and local meter reading, programming and other function collection can be realized. The multifunctional meter monitoring unit 2 is mainly used for collecting voltage, current and harmonic waves of a grid-connected point. The position of the grid connection point is shown in fig. 6, and for the distributed power supply with the booster station, the grid connection point is a high-voltage side bus or node of the distributed power supply booster station; for a distributed power supply without a booster station, the grid-connected point is an output summarizing point of the distributed power supply. In addition, the inverter monitoring unit is used for collecting working data of the inverter; the grid-connected breaker protection measurement and control unit 4 is used for integrated power distribution comprehensive protection of grid-connected points, and has the functions of automatic residual current tracking, overvoltage, undervoltage and open-phase protection, automatic reclosing, electronic overload, short-circuit short-time delay and instantaneous protection and voltage-loss tripping.
It should be noted that, as shown in fig. 2, the telemetry information table b is responsible for collecting and uploading by the multifunctional table monitoring unit 2, the telemetry information table a, the remote control information table b and the remote signaling information table a are all responsible for collecting and uploading by the inverter monitoring unit 3, the remote control information table a and the remote signaling information table b are all responsible for collecting and uploading by the grid-connected breaker protection and measurement and control unit 4, and the telemetry information table c and the remote signaling information table c are reserved and expanded functions and can be realized by adding modules such as a photovoltaic environment monitoring system and an anti-islanding protection device in the later stage.
In addition, the grid-connected electric energy meter measuring unit 1 adopts an electric energy meter, and the model is DT (S) ZY1277 (C) -M. The multifunctional table monitoring unit 2 adopts a multifunctional table, and the model is PD194Z-ACJ. The parallel connection of a plurality of dc-to-ac converter monitored control units 3 sets up, and dc-to-ac converter monitored control unit adopts SmartLogger equipment to carry out data acquisition, and the work data of gathering includes: ac/dc side voltage, current, ac side active power, reactive power, power factor, inverter temperature, solar power generation, monthly power generation, annual power generation, cumulative power generation, inverter maximum active and reactive output range, etc. The intelligent gateway 5 is connected with the multifunctional meter monitoring unit 2, the inverter monitoring unit 3 and the grid-connected breaker protection measurement and control unit 4 by adopting an RS485 cable 8. In addition, the intelligent gateway 5 is connected to the switch 6 through a network cable 9 (or an optical fiber). The control center 7 is connected with the switch 6 through a network cable 9 (or an optical fiber), and is connected with the intelligent gateway 5 through wifi.
Further, as shown in fig. 3, the intelligent micro-grid control device further comprises a control cabinet 11 and a wire clamp 12, and the grid-connected electric energy meter measuring unit 1, the multifunctional meter monitoring unit 2, the plurality of inverter monitoring units 3, the grid-connected circuit breaker protection measurement and control unit 4, the intelligent gateway 5 and the switch 6 are all installed in the control cabinet 11. The wire clamp 12 is used for installing the RS485 cable 8 and the net wire 9. Specifically, as shown in fig. 4, the wire clamp 12 includes a base 1201 and a jacket 1202; the base 1201 is fixed on the inner surface of the control cabinet 11, and the jacket 1202 is fixed on the base 1201 and is in an open ring structure and used for fixing the RS485 cable 8 and the net wire 9. As shown in fig. 5, one end of a collet 1202 is slidably provided with a fastening pin 1204, the upper end of the fastening pin 1204 is an outer hexagonal knob, and the lower end of the fastening pin 1204 is a kidney-shaped pin head 1206; a metal sheet 1203 is further arranged on one end surface of the clamp sleeve 1202, where the fastening pin 1204 is installed, the fastening pin 1203 is in sliding fit with the metal sheet 1203, and a spring 1205 is arranged between the metal sheet 1203 and the outer hexagonal knob; the base 1201 is provided with a fastening groove 1208, the top of the inner surface of the fastening groove 1208 is provided with a lower friction layer 1209, the top of the columnar fastening groove 1208 is provided with a guide hole 1207, the guide hole 1207 extends to the surface of the base 1201 and is in clearance fit with the pin head 1206, and the shape of the guide hole 1207 is waist-shaped as the pin head 1206. The lower surface of pin head 1206 is also provided with an upper friction layer 1210.
It should be noted that, in the wire clip 12 of the present utility model, the conventional screw is replaced by the fastening pin 1204, when in operation, the pin head 1206 is slid into the fastening groove 1208 along the guide hole 1207, then the outer hexagonal knob is turned to make the lower friction layer 1209 contact with the upper friction layer 1210, meanwhile, the spring 1205 is in a compressed state, the resilience force of the spring tightly pushes the lower friction layer 1209 and the upper friction layer 1210 against each other, so that the friction force is increased.
The utility model adopts an integrated design to realize the efficient management and control of energy. In addition, the control cabinet 11 may be added with a new structure from the following aspects.
The control cabinet 11 can adopt intelligent control design, and by means of the scheme of cloud computing and edge cooperation, the photovoltaic power generation system can be monitored in real time, data analyzed and optimally controlled, and the energy utilization efficiency is improved.
The control cabinet 11 can also adopt special materials such as high temperature resistance, corrosion resistance and the like, can stably operate in a severe environment, and ensures the energy supply reliability of oil and gas field well sites.
The control cabinet 11 can also perfect a safety protection mechanism, such as adding a voltage-avoiding device and the like, can prevent equipment from being damaged by accidents such as power grid abnormality, thunder and the like, and ensures the safety of personnel and equipment.
The control cabinet 11 can also support a plurality of grid-connected access modes, and meets the energy requirements of different oil and gas field well sites, so that the flexibility and adaptability of the equipment are improved.
Although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.
Claims (10)
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| CN202323573246.1U CN222016263U (en) | 2023-12-26 | 2023-12-26 | An intelligent microgrid control device suitable for oil and gas field well sites |
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| CN202323573246.1U CN222016263U (en) | 2023-12-26 | 2023-12-26 | An intelligent microgrid control device suitable for oil and gas field well sites |
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