CN111564898A - Multifunctional intelligent control system based on intelligent electric meter - Google Patents
Multifunctional intelligent control system based on intelligent electric meter Download PDFInfo
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Abstract
The invention provides a multifunctional intelligent control system based on an intelligent ammeter, which comprises a data acquisition unit, a data acquisition unit and a control unit, wherein the data acquisition unit is connected in a transformer area and is used for acquiring data of each part in the transformer area; the monitoring module is connected with the data acquisition unit and is used for detecting user voltage, current and electric quantity, monitoring distribution transformer voltage, current and load rate, monitoring reactive compensation and controllable resource information of the phase change switch and checking a user variable relation; the data calculation and analysis module is connected with the monitoring module and is used for carrying out the characteristic analysis of the transformer area according to the detection data of the detection module; the optimization coordination control module is connected with the data calculation and analysis module, and is used for making an adjustment strategy and adjusting the running state of the transformer area according to the analysis result of the data calculation and analysis module; and the user interaction function module is connected with the data calculation and analysis module and used for feeding back the state information of the transformer area to the user and providing an interaction interface. The method and the device are beneficial to solving the problem of difficult monitoring and management of the transformer area, and the fine management level of the transformer area is improved.
Description
Technical Field
The invention relates to the technical field of electric power, in particular to a multifunctional intelligent control system based on an intelligent electric meter.
Background
The power supply system has the advantages of large number of distribution areas, complex grid structure, more users, more and complicated equipment, the last ring of a power supply link, and weak areas of operation management of power supply enterprises, and the problems of high power quality and more complaints of users, and lack of effective control means and methods. With the full coverage of the smart electric meter in the transformer area and the background of the transparent power grid, the transformer area is subjected to fine management and control, and the technology begins to mature gradually.
The current stage of the platform area management and control has the following defects:
1) the line loss rate of the transformer area is high, and abnormal conditions occur sometimes.
2) The low voltage of the transformer area can not be effectively monitored and managed, and the power failure condition can not be effectively monitored and informed.
3) In the management process of a power grid enterprise in a transformer area, timely information reminding is not carried out on users, so that the problems of user complaints and the like are caused; at peak load, no timely measures can be taken to reduce the load.
4) The interactive capabilities of a large number of users cannot be incorporated into the management of the distribution area.
5) Advanced application functions of the smart meter are not fully utilized.
Disclosure of Invention
This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. In this section, as well as in the abstract and the title of the invention of this application, simplifications or omissions may be made to avoid obscuring the purpose of the section, the abstract and the title, and such simplifications or omissions are not intended to limit the scope of the invention.
Therefore, the technical problem to be solved by the present invention is to overcome the technical defects in the management and monitoring of the transformer area in the prior art, so as to provide a multifunctional intelligent control system based on an intelligent electric meter, and solve the technical problems of transformer area operation data shortage, high line loss rate, three-phase imbalance, high-low voltage and low voltage, user complaints, no interaction with users, etc.
In order to solve the technical problems, the invention provides the following technical scheme: a multifunctional intelligent control system based on an intelligent ammeter comprises,
the data acquisition unit is connected in the transformer area and is used for acquiring data of each part in the transformer area;
the monitoring module is connected with the data acquisition unit and is used for detecting user voltage, current and electric quantity, monitoring distribution transformer voltage, current and load rate, monitoring reactive compensation and controllable resource information of the phase change switch and checking a user variable relation;
the data calculation and analysis module is connected with the monitoring module and is used for carrying out the characteristic analysis of the transformer area according to the detection data of the detection module;
the optimization coordination control module is connected with the data calculation and analysis module, and is used for making an adjustment strategy and adjusting the running state of the transformer area according to the analysis result of the data calculation and analysis module;
and the user interaction function module is connected with the data calculation and analysis module and used for feeding back the state information of the transformer area to the user and providing an interaction interface.
As a preferable scheme of the multifunctional intelligent control system based on the intelligent electric meter, the system comprises: the data calculation and analysis module is used for line loss calculation and analysis, low voltage analysis, three-phase unbalance analysis, distributed power analysis, reliability analysis and electricity stealing analysis.
As a preferable scheme of the multifunctional intelligent control system based on the intelligent electric meter, the system comprises: the monitoring module is used for monitoring voltage, current and current of power utilization, monitoring voltage, current, load rate and the like of distribution transformer, monitoring controllable resource information such as reactive compensation, phase change switches and the like, and checking a user variable relationship.
As a preferable scheme of the multifunctional intelligent control system based on the intelligent electric meter, the system comprises: the system is a comprehensive monitoring platform of a distribution transformer and a transformer area, and controls power consumption, three-phase balance, voltage value and load in the operation process of the transformer area by using controllable resources of the transformer area through communication, informatization and control technologies.
As a preferable scheme of the multifunctional intelligent control system based on the intelligent electric meter, the system comprises: after the optimization coordination control module carries out optimization coordination calculation aiming at the problems of high loss, unbalanced three phases, high load rate and low voltage, the optimization coordination control module sends an adjustment instruction to a load control terminal, a user intelligent electric meter, a transformer, a reactive power compensation device, a commutation switch, a branch switch and a distributed power supply controllable resource, and the problems existing in the operation are solved through the optimization coordination control; for the problems existing in the construction stage, the planning design and the transformation scheme are given out by optimizing and coordinating control; the load adjustment includes demand side response adjustment and load adjustment in an emergency.
As a preferable scheme of the multifunctional intelligent control system based on the intelligent electric meter, the system comprises: the system comprehensively considers user participation, distributed power supplies, transformers, reactive power compensation devices and controllable resources of the phase change switch to carry out optimization control adjustment.
As a preferable scheme of the multifunctional intelligent control system based on the intelligent electric meter, the system comprises: the optimization coordination control is optimized and coordinated preferentially from the existing controllable resources, and when the existing resources are difficult to solve the problems of low voltage and heavy load, the optimization coordination control provides a planning design and transformation scheme of a planning stage, wherein the planning design and transformation scheme comprises a reactive power compensation device and a phase change switch.
As a preferable scheme of the multifunctional intelligent control system based on the intelligent electric meter, the system comprises: the system performs the following steps:
step 2, the monitoring module carries out data processing, monitors the voltage, the current and the electric quantity of a user, monitors the voltage, the current, the load rate and the gear information of the distribution transformer, monitors the reactive compensation device, the phase change switch and the controllable resources of the distributed power supply, and has a user variable relation checking function;
step 4, the data calculation and analysis module sends the problems existing in the distribution transformer and the transformer area operation to the optimization coordination control module, and meanwhile, the optimization coordination control module receives information from the interaction with the user;
step 6, the information publishing module sends the internal information and the external information comprehensive information to the user interaction module; the user interaction module carries out high load reminding, power failure reminding, low voltage reminding, real-time electricity price reminding and electricity charge reminding on a user, carries out load adjustment interaction with the user during electricity consumption peak and sends interaction information to the optimization coordination control module.
As a preferable scheme of the multifunctional intelligent control system based on the intelligent electric meter, the system comprises: and (3) continuously and circularly acquiring, monitoring, analyzing and calculating data according to a fixed period between the step 1 and the step 3.
The invention has the beneficial effects that: the multifunctional intelligent control system based on the intelligent electric meter, provided by the invention, utilizes the existing information system technology and control technology, provides a system solution for the management and monitoring of the transformer area, the user interaction and the response of the demand side, is beneficial to solving the problems of comprehensive management and monitoring of the transformer area, user complaints, high and low voltage, line loss abnormity and the like, promotes the fine management of the transformer area, and reduces the risks of distribution transformer heavy load and overload operation. The invention processes and calculates the data of the transformer area, provides transformer area operation information for the digital power grid, and provides basic data for planning design and transformation of the transformer area.
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In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise. Wherein:
FIG. 1 is a schematic diagram of a flow principle framework of the present invention;
FIG. 2 is a histogram of three-phase equilibrium changes in the distribution room;
FIG. 3 is a diagram of voltage variation after the voltage optimization of the mesa region.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described and will be readily apparent to those of ordinary skill in the art without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.
Example 1
As shown in fig. 1, a multifunctional intelligent control system based on an intelligent electric meter comprises a data collector connected to a distribution room for collecting data of each part in the distribution room; the monitoring module is connected with the data acquisition unit and is used for detecting user voltage, current and electric quantity, monitoring distribution transformer voltage, current and load rate, monitoring reactive compensation and controllable resource information of the phase change switch and checking a user variable relation; the data calculation and analysis module is connected with the monitoring module and is used for carrying out the characteristic analysis of the transformer area according to the detection data of the detection module; the optimization coordination control module is connected with the data calculation and analysis module, and is used for making an adjustment strategy and adjusting the running state of the transformer area according to the analysis result of the data calculation and analysis module; and the user interaction function module is connected with the data calculation and analysis module and used for feeding back the state information of the transformer area to the user and providing an interaction interface.
The multifunctional intelligent control system based on the intelligent electric meter, provided by the invention, utilizes the existing information system technology and control technology, provides a system solution for the management and monitoring of the transformer area, the user interaction and the response of the demand side, is beneficial to solving the problems of comprehensive management and monitoring of the transformer area, user complaints, high and low voltage, line loss abnormity and the like, promotes the fine management of the transformer area, and reduces the risks of distribution transformer heavy load and overload operation. The invention processes and calculates the data of the transformer area, provides transformer area operation information for the digital power grid, and provides basic data for planning design and transformation of the transformer area.
In this embodiment, the data calculation and analysis module is used for line loss calculation and analysis, low voltage analysis, three-phase imbalance analysis, distributed power analysis, reliability analysis, and electricity stealing analysis.
In this embodiment, the monitoring module is used for monitoring voltage, current and current of power utilization, monitoring voltage, current, load rate of distribution transformer, monitoring controllable resource information such as reactive compensation and commutation switch, and checking a user variable relationship.
Specifically, the system in this embodiment is a comprehensive monitoring platform of the distribution transformer and the distribution area, and the power consumption, the three-phase balance, the voltage value, and the load in the operation process of the distribution area are controlled by using the controllable resources of the distribution area through communication, informatization, and control technologies.
Specifically, in the embodiment, the optimization coordination control preferentially performs optimization coordination from the existing controllable resources, and when the existing resources are difficult to solve the problems of low voltage and heavy load, the optimization coordination control provides a planning design and transformation scheme in a planning stage, wherein the planning design and transformation scheme comprises a reactive power compensation device and a phase change switch.
After the optimization coordination control module in the embodiment performs optimization coordination calculation aiming at the problems of high loss, unbalanced three phases, high load rate and low voltage, the optimization coordination control module sends an adjustment instruction to a load control terminal, a user intelligent electric meter, a transformer, a reactive power compensation device, a commutation switch, a branch switch and a distributed power supply controllable resource, and the problems existing in the operation are solved through the optimization coordination control; for the problems existing in the construction stage, the planning design and the transformation scheme are given out by optimizing and coordinating control; the load adjustment includes demand side response adjustment and load adjustment in an emergency.
Example 2
The embodiment provides a multifunctional intelligent control system based on a smart electric meter, which comprises the following steps:
And 2, by utilizing a data preprocessing technology, a monitoring module performs data processing firstly, fits a data curve, monitors the voltage, the current and the electric quantity of a user, monitors the voltage, the current, the load rate and the gear information of a distribution transformer, monitors the output of a reactive power compensation device, a distributed power supply and the like, and monitors the access phase of a phase change switch. Meanwhile, the monitoring module has a user variable relation checking function.
And 3, the monitoring module sends the processed data to a data calculating and analyzing module, line loss calculation and analysis, low voltage analysis, three-phase unbalance analysis, distributed power analysis, reliability analysis, electricity stealing analysis and the like are carried out by utilizing technologies such as a big data mining technology, artificial intelligence and the like, the problems of low voltage, heavy overload, high line loss rate and the like existing in the operation process of distribution transformer and transformer area are found out, operation information and reports such as line loss rate, voltage qualification rate, power failure time and the like required by power grid enterprises and users are obtained through arrangement, and a day, month, quarter and year data statistics function is carried out.
And 4, the data calculation and analysis module sends the problems existing in the distribution transformer and the transformer area operation to the optimization coordination control module, and meanwhile, the optimization coordination control module receives information from the interaction with the user. The optimization coordination control module carries out optimization coordination calculation aiming at the problems of high loss, unbalanced three phases, high load rate, low voltage and the like, sends control and adjustment instructions to controllable resources such as a load control terminal, a user intelligent electric meter, a distribution transformer, a reactive power compensation device, a commutation switch, a branch switch, a distributed power supply and the like, and solves the problems existing in operation through optimization coordination control. And the optimization coordination control module carries out optimization coordination control in time according to the problem requirements.
And 5, the data calculation and analysis module sends the information such as the voltage, the current and the like which are subjected to statistical analysis to the information release module. The information issuing module sends information such as voltage, current, electric quantity, line loss rate and the like to external systems such as a metering automation system, a marketing system and a digital power grid. Meanwhile, the information of external systems such as real-time electricity price, complaints, user information and the like is input into the data calculation and analysis module through a system interface.
And 6, the information publishing module sends the comprehensive information such as the internal information and the external information to the user interaction module. The user interaction module provides services such as high load reminding, power failure reminding, low voltage reminding, real-time electricity price reminding and electricity charge reminding for a user. And when the electricity consumption peak is in an electricity consumption peak, the system is carried out with the user, prompts the user to participate in the response of the demand side through the electricity price incentive and the compensation incentive, carries out load adjustment interaction, and sends the interaction information to the optimization coordination control module. The load adjustment includes demand side response adjustment and load adjustment in an emergency.
Example 3
In the embodiment, a part of transformer areas are selected as samples, the intelligent electric meter control system is added in the transformer areas, the change of power supply parameters of the transformer areas before and after access is compared, and therefore the line loss rate is improved.
TABLE 1 comparison of the before and after optimization of the three-phase imbalance
As can be seen from the above table and fig. 2, after the power supply of the transformer area is optimized, the three-phase imbalance is reduced, so that the line loss rate can be reduced by 1.44%.
In addition, in this embodiment, 5 cells are selected, and the line loss rate comparison of each cell is performed under the condition of line loss rate change before and after the control system is accessed.
TABLE 2 Table area line loss comparison chart
Through the comparison of the experimental data of 5 transformer areas, the system carries out effective comprehensive management and control on the transformer areas, and the line loss rate of the transformer areas is effectively reduced by 2%.
In this embodiment, the voltage condition of the distribution room is also monitored, and as shown in fig. 3, the voltage change rates of the nodes before and after optimization are compared. It can be seen that the incidence of both high and low voltages in the mesa region is reduced.
Meanwhile, through the comparison of experimental data of 5 transformer areas, the system carries out effective comprehensive management and control on the transformer areas, the line loss rate of the transformer areas is effectively reduced by 2%, the three-phase unbalance rate is reduced by 25%, the user complaint is reduced by 82%, the peak load is effectively controlled, the heavy overload occurrence rate is reduced by 65%, and planning and transformation schemes for increasing the configuration capacity by reactive power compensation and increasing the line section are generated.
It should be noted that the above-mentioned embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.
Claims (9)
1. The utility model provides a multi-functional intelligent control system based on smart electric meter which characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,
the data acquisition unit is connected in the transformer area and is used for acquiring data of each part in the transformer area;
the monitoring module is connected with the data acquisition unit and is used for detecting the voltage, the current and the electric quantity of a user, monitoring the voltage, the current and the load rate of a distribution transformer, performing reactive compensation, controlling resource information of a phase change switch and checking the relation of the user transformer;
the data calculation and analysis module is connected with the monitoring module and is used for carrying out the characteristic analysis of the transformer area according to the detection data of the detection module;
the optimization coordination control module is connected with the data calculation and analysis module, and is used for making an adjustment strategy and adjusting the running state of the transformer area according to the analysis result of the data calculation and analysis module;
and the user interaction function module is connected with the data calculation and analysis module and used for feeding back the state information of the transformer area to the user and providing an interaction interface.
2. The multifunctional intelligent control system based on the intelligent electric meter according to claim 1, wherein: the data calculation and analysis module is used for line loss calculation and analysis, low voltage analysis, three-phase unbalance analysis, distributed power analysis, reliability analysis and electricity stealing analysis.
3. The multifunctional intelligent control system based on the intelligent electric meter according to claim 1, wherein: the monitoring module is used for monitoring voltage, current and current of power utilization, monitoring voltage, current and load rate of distribution transformer, monitoring reactive compensation and controllable resource information of a phase change switch, and checking a household transformer relationship.
4. The multifunctional intelligent control system based on the intelligent electric meter according to claim 1, wherein: the system is a comprehensive monitoring platform of a distribution transformer and a transformer area, and controls power consumption, three-phase balance, voltage value and load in the operation process of the transformer area by using controllable resources of the transformer area through communication, informatization and control technologies.
5. The multifunctional intelligent control system based on the intelligent electric meter according to claim 1 or 2, wherein: after the optimization coordination control module carries out optimization coordination calculation aiming at the problems of high loss, unbalanced three phases, high load rate and low voltage, the optimization coordination control module sends an adjustment instruction to a load control terminal, a user intelligent electric meter, a transformer, a reactive power compensation device, a commutation switch, a branch switch and a distributed power supply controllable resource, and the problems existing in the operation are solved through the optimization coordination control; for the problems existing in the construction stage, the planning design and the transformation scheme are given out by optimizing and coordinating control; the load adjustment includes demand side response adjustment and load adjustment in an emergency.
6. The multifunctional intelligent control system based on the intelligent electric meter according to claim 1, wherein: the system performs optimization control adjustment on user participation, distributed power supplies, transformers, reactive power compensation devices, phase change switches and controllable resources.
7. The multifunctional intelligent control system based on the intelligent electric meter according to claim 1, wherein: the optimization coordination control is optimized and coordinated preferentially from the existing controllable resources, and when the existing resources are difficult to solve the problems of low voltage and heavy load, the optimization coordination control provides a planning design and transformation scheme of a planning stage, wherein the planning design and transformation scheme comprises a reactive power compensation device and a phase change switch.
8. The multifunctional intelligent control system based on the intelligent electric meter according to claim 1, wherein: the system performs the following steps:
step 1, a data acquisition unit acquires data from a load control terminal, a user intelligent ammeter, a distribution transformer monitoring terminal (TTU), a transformer (distribution transformer), a reactive power compensation device, a phase change switch, a branch switch and a distributed power supply and reports the data to a monitoring module;
step 2, the monitoring module carries out data processing, monitors the voltage, the current and the electric quantity of a user, monitors the voltage, the current, the load rate and the gear information of the distribution transformer, monitors the reactive compensation device, the phase change switch and the controllable resources of the distributed power supply, and has a user variable relation checking function;
step 3, the monitoring module sends the processed data to a data calculating and analyzing module, so that line loss calculation and analysis, low voltage analysis, three-phase unbalance analysis, distributed power analysis, reliability analysis and electricity stealing analysis are carried out, problems existing in the distribution transformer and transformer area operation process are found out, and information and reports needed by power grid enterprises and users are obtained through sorting;
step 4, the data calculation and analysis module sends the problems existing in the distribution transformer and the transformer area operation to the optimization coordination control module, and meanwhile, the optimization coordination control module receives information from the interaction with the user;
step 5, the data calculation and analysis module sends the voltage and current information subjected to statistical analysis to the information release module; the information publishing module sends information to a metering automation and marketing system and a digital power grid external system and receives information input of the external system;
step 6, the information publishing module sends the internal information and the external information comprehensive information to the user interaction module; the user interaction module carries out high load reminding, power failure reminding, low voltage reminding, real-time electricity price reminding and electricity charge reminding on a user, carries out load adjustment interaction with the user during electricity consumption peak and sends interaction information to the optimization coordination control module.
9. The multifunctional intelligent control system based on the intelligent electric meter according to claim 8, wherein: and (3) continuously and circularly acquiring, monitoring, analyzing and calculating data according to a fixed period between the step 1 and the step 3.
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| CN112529480B (en) * | 2020-12-31 | 2023-04-11 | 贵州电网有限责任公司 | Low-voltage risk analysis method based on multivariate data |
| CN113162057A (en) * | 2021-03-30 | 2021-07-23 | 国网河北省电力有限公司雄安新区供电公司 | Intelligent ammeter box and control method thereof |
| CN113224753A (en) * | 2021-05-07 | 2021-08-06 | 国网信通亿力科技有限责任公司 | Modular energy control management system |
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| CN113746086A (en) * | 2021-08-03 | 2021-12-03 | 国网浙江省电力有限公司湖州供电公司 | Non-invasive demand response system and method |
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