CN114777193B - Method and system for switching household regulation and control modes of secondary network of heating system - Google Patents
Method and system for switching household regulation and control modes of secondary network of heating system Download PDFInfo
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- F24—HEATING; RANGES; VENTILATING
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- F24D19/1012—Arrangement or mounting of control or safety devices for water heating systems for central heating by regulating the speed of a pump
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Abstract
The invention discloses a method for switching a household regulation mode of a secondary network of a heating system, which comprises the following steps: establishing a secondary network digital twin model of the heating system; based on a digital twin model of the secondary network of the heating system, a conventional optimized operation mode of the secondary network of the heating system is established, and user control equipment of the secondary network is controlled so as to enable the indoor temperature of a user to reach a preset comfortable state; judging whether a user selects a heat supply energy saving mode through the intelligent terminal; if the user selects the heat supply energy saving mode, switching the operation mode of the secondary network of the heat supply system from the conventional optimized operation mode to the energy saving mode; based on a digital twin model of the secondary network of the heating system, establishing an energy-saving operation mode of the secondary network of the heating system, and regulating and controlling user regulation equipment of the secondary network so as to ensure that the indoor temperature of a user meets the current requirement of the user; and carrying out energy-saving analysis on the regulation and control operation corresponding to the operation mode of the secondary network of the heating system based on the digital twin model of the secondary network of the heating system, and verifying the feasibility of regulation and control.
Description
Technical Field
The invention belongs to the technical field of intelligent heat supply, and particularly relates to a method and a system for switching a household regulation mode of a secondary network of a heat supply system.
Background
The urban central heating is an important civil engineering which is always concerned by various levels of government and society, is an important subject for the research of the heat supply industry, and is mainly supported in the field of infrastructure of China, the heat supply quality is improved, the heat supply cost is reduced, and the pollution emission is reduced. For a long time, since hydraulic balance of a primary heat supply network relates to safe operation of the whole heat supply network, most heat supply enterprises pay great attention, and a great deal of funds and energy are invested for research and modification. The remarkable achievement is achieved, and the heat loss rate and the water loss rate of the pipe network are obviously reduced. The existing management means of the secondary network are mostly remained in the manual regulation stage, and the regulation fineness and the flexibility degree can not meet the requirements.
The current intelligent heat supply technology is developed rapidly, the life quality of people is greatly improved, and a comfortable environment is created for people. But at present, central heating belongs to a high-energy product, and the running mode of a heating system is single, and when no one is in a user's home or needs to reduce the personalized heating requirement, a plurality of heating modes are not available at present to meet the requirement of the user.
Based on the technical problems, a new method and system for switching the household regulation and control modes of the secondary network of the heating system are needed to be designed.
Disclosure of Invention
The invention aims to solve the technical problem of overcoming the defects of the prior art and providing a method and a system for switching the control modes of the two-level network of the heating system.
In order to solve the technical problems, the technical scheme of the invention is as follows:
the invention provides a method for switching a household regulation mode of a secondary network of a heating system, which comprises the following steps:
s1, establishing a heating system secondary network digital twin model by adopting a mechanism modeling and data identification method;
step S2, based on a digital twin model of the secondary network of the heating system, a conventional optimized operation mode of the secondary network of the heating system is established, and user control equipment of the secondary network is controlled so that the indoor temperature of a user reaches a preset comfortable state;
step S3, judging whether a user selects a heat supply energy saving mode through the intelligent terminal;
step S4, if the user selects a heat supply energy-saving mode, switching the operation mode of the secondary network of the heat supply system from a conventional optimized operation mode to an energy-saving mode;
s5, based on a digital twin model of the secondary network of the heating system, establishing a secondary network energy-saving operation mode of the heating system, and regulating and controlling secondary network user regulation and control equipment so as to enable the indoor temperature of a user to meet the current requirement of the user;
and S6, carrying out energy-saving analysis on regulation and control operation corresponding to a secondary network operation mode of the heating system based on the digital twin model of the secondary network of the heating system, and verifying the feasibility of regulation and control.
Further, in the step S1, a mechanism modeling and data identification method is adopted to build a digital twin model of a secondary network of the heating system, which specifically includes:
establishing a digital twin model comprising a physical entity, a virtual entity, twin data service and connecting elements among all components of a secondary network unit building of a heating system;
the physical entity is the basis of a digital twin model and is a data source driven by the whole digital twin model; the virtual entity and the physical entity are mapped one by one and interacted in real time, elements of the physical space are described from multiple dimensions and multiple scales, the actual process of the physical entity is simulated, and element data are analyzed, evaluated, predicted and controlled; the twin data service integrates the physical space information and the virtual space information, ensures the real-time performance of data transmission, provides knowledge base data comprising intelligent algorithms, models, rule standards and expert experiences, and forms a twin database by fusing the physical information, the multi-time space associated information and the knowledge base data; the connection between the components realizes the interconnection of the components, and the real-time acquisition and feedback of data are realized between the physical entity and the twin data service through the sensor and the protocol transmission specification; the physical entity and the virtual entity carry out data transmission through a protocol, physical information is transmitted to the virtual space in real time to update the correction model, and the virtual entity carries out real-time control on the physical entity through an executor; the information transfer between the virtual entity and the twin data service is realized through a database interface;
and identifying the digital twin model, accessing the multi-working-condition real-time operation data of the secondary network unit building into the established digital twin model, and adopting a reverse identification method to carry out self-adaptive identification correction on the simulation result of the digital twin model to obtain the identified and corrected secondary network digital twin model of the heating system.
Further, in step S2, based on the digital twin model of the secondary network of the heating system, a conventional optimized operation mode of the secondary network of the heating system is established, and the user control equipment of the secondary network is controlled so that the indoor temperature of the user reaches a preset comfort state, which specifically includes:
s201, carrying out equipment transformation on users of a secondary network unit building of a heating system, installing a heat meter at an inlet of a household heat supply pipeline of a typical heat user of a selected unit building, installing a temperature collector in a user room, and installing user regulation and control equipment at an inlet branch pipe of a household heat supply system of a heat user pipeline; the heat meter is used for monitoring water supply temperature, backwater temperature, water supply flow and heat supply; the user regulation and control equipment comprises an electric regulating valve and a regulating water pump;
s202, based on a heating system secondary network digital twin model, a first learning algorithm is adopted to learn and train the acquired historical heat metering data, weather data and user room temperature data, and then a heat load prediction model is established to obtain a user demand load predicted value;
s203, establishing a control model of the user regulation equipment by adopting a second learning algorithm based on the predicted value of the user demand load, the user room temperature, the target room temperature and the regulation data of the historical regulation equipment so as to meet the condition that the indoor temperature of the user reaches a preset comfort state, and obtaining a regulation strategy of the regulation equipment before each user.
Further, in the steps S3 and S4, it is determined whether the user has selected the heating energy-saving mode through the intelligent terminal, and if the user has selected the heating energy-saving mode, the operation mode of the secondary network of the heating system is switched from the conventional optimization operation mode to the energy-saving mode, which specifically includes:
a heat supply energy saving mode is arranged on the user intelligent terminal, and a user can select whether to switch to the heat supply energy saving mode according to the individual requirements of the user in a preset time period; the heat supply energy saving mode selection has a time interval dividing mechanism and a custom temperature selecting mechanism, custom temperature can be set, the heat supply energy saving mode is selected in a fixed time interval, and after the time interval reaches a set value, the heat supply energy saving mode is switched back to a conventional optimized operation mode; the custom temperature selection mechanism is less than a conventional preset temperature;
under normal conditions, the system operates in a conventional optimized operation mode, the change of the demand of a user heat supply mode is continuously monitored in the operation process of the heat supply secondary network system, when the fact that the user selects a heat supply energy-saving mode through the intelligent terminal and receives a heat supply operation mode switching instruction is monitored, the fact that the user has selected the heat supply energy-saving mode, a corresponding regulation time period and a corresponding regulation temperature are judged, and the user switches to the heat supply energy-saving mode in the corresponding regulation time period is judged.
Further, the user intelligent terminal is in communication connection with the heat supply secondary network system, user information is obtained, user login verification is carried out, and after the heat supply energy-saving mode is selected, the heat supply mode switching state can be obtained; when the user selects the heat supply energy saving mode, different modes can be adopted to carry out heat supply energy saving rewards so as to encourage the user to select the heat supply energy saving mode when no one is at home or the heat supply requirement is low in daytime.
Further, in step S5, based on the digital twin model of the secondary network of the heating system, an energy-saving operation mode of the secondary network of the heating system is established, and the secondary network user control device is controlled so that the indoor temperature of the user meets the current requirement of the user, and the method specifically comprises:
s501, carrying out equipment transformation on users of a secondary network unit building of a heating system, installing a heat meter at the inlet of a household heat supply pipeline of a typical heat user of a selected unit building, installing a temperature collector in a user room, and installing user regulation and control equipment at the inlet branch pipe of a household heat supply system of a heat user pipeline; the heat meter is used for monitoring water supply temperature, backwater temperature, water supply flow and heat supply; the user regulation and control equipment comprises an electric regulating valve and a regulating water pump;
s502, based on a digital twin model of a secondary network of the heating system, establishing an energy-saving model for adjusting the operation frequency of a water pump and the opening of an electric regulating valve of each user branch by adopting a learning algorithm according to the operation characteristics of the secondary network and user regulation equipment for selecting a heating energy-saving operation mode; if the basic flow demand value of each user branch is preset in the heat supply energy-saving mode, the operation frequency of the regulating water pump and the opening optimal value of each electric regulating valve of the corresponding user are obtained according to the established model and the optimizing algorithm, so that the operation energy consumption of the water pump is minimum while the flow of each user branch keeps the demand value, and the corresponding energy-saving effect is achieved;
the opening degree of the electric regulating valve and the running frequency of the regulating water pump are smaller than those of the conventional optimized running mode in the heat supply energy-saving mode; meanwhile, under the heat supply energy-saving operation mode, the secondary network of the heat supply system needs to meet the hydraulic balance degree constraint of each branch of the secondary network, the operation frequency constraint of the adjusting water pump and the opening constraint of the electric adjusting valve of each branch to achieve dynamic hydraulic balance.
Further, the method further comprises: the intelligent user terminal is also provided with a heat supply induction mode, and the heat supply system regulates and controls the user regulation and control equipment by inducing the activity information of people in the indoor environment and the environment temperature; the heating system regularly monitors the change of the activity information and the environment temperature of people in the indoor environment, and switches the operation mode of the heating system from the current heating mode to the heating induction mode under the condition that the mode switching condition is met or a mode switching instruction sent by the intelligent terminal of the user is received; the infrared sensor is used for sensing activity information of people in the indoor environment, and the activity information is uploaded to the heat supply secondary network system through the communication module.
The invention also provides a system for switching the control modes of the two-level network of the heating system, which comprises: the system comprises a heat supply secondary network regulation and control unit and a user intelligent terminal, wherein the heat supply secondary network regulation and control unit comprises a digital twin model building module, a regulation and control module, a judging module, a mode switching module and a verification module; the heat supply secondary network regulation and control unit is in communication connection with the user intelligent terminal
The digital twin model building module is used for building a two-level network digital twin model of the heating system by adopting a mechanism modeling and data identification method;
the regulation and control module is used for establishing a conventional optimized operation mode of the secondary network of the heating system based on the digital twin model of the secondary network of the heating system, and regulating and controlling user regulation and control equipment of the secondary network so as to enable the indoor temperature of the user to reach a preset comfortable state;
the judging module is used for judging whether the user selects a heat supply energy saving mode through the intelligent terminal;
the mode switching module is used for switching the operation mode of the secondary network of the heating system from the conventional optimized operation mode to the energy-saving mode when the user selects the heating energy-saving mode;
the regulation and control module is also used for establishing a secondary network energy-saving operation mode of the heating system based on the secondary network digital twin model of the heating system, and regulating and controlling secondary network user regulation and control equipment so as to ensure that the indoor temperature of the user meets the current requirement of the user;
the verification module is used for carrying out energy-saving analysis on the regulation and control operation corresponding to the operation mode of the secondary network of the heating system based on the digital twin model of the secondary network of the heating system, and verifying the feasibility of regulation and control.
Further, the judging module is configured to judge whether the user has selected the heating energy-saving mode through the intelligent terminal and the mode switching module is configured to switch the operation mode of the secondary network of the heating system from the conventional optimized operation mode to the energy-saving mode when the user has selected the heating energy-saving mode, and specifically includes:
a heat supply energy saving mode is arranged on the user intelligent terminal, and a user can select whether to switch to the heat supply energy saving mode according to the individual requirements of the user in a preset time period; the heat supply energy saving mode selection has a time period division mechanism, the heat supply energy saving mode can be selected in a certain time period, and after the time period reaches a set value, the heat supply energy saving mode is switched back to the conventional optimized operation mode;
under normal conditions, the system operates in a conventional optimized operation mode, the change of the demand of a user heat supply mode is continuously monitored in the operation process of the heat supply secondary network system, when the user is monitored to select a heat supply energy-saving mode through the intelligent terminal and a heat supply operation mode switching instruction is received, the user is judged to have selected the heat supply energy-saving mode and a corresponding regulation time period, and the user is switched to the heat supply energy-saving mode in the corresponding regulation time period.
Further, the user intelligent terminal is also provided with a heat supply induction mode, and the heat supply secondary network regulation and control unit regulates and controls the user regulation and control equipment by inducing the activity information and the environment temperature of people in the indoor environment; the heat supply secondary network regulation and control unit is used for switching the operation mode of the heat supply system from the current heat supply mode to the heat supply induction mode through the mode switching module under the condition that the activity information of people in the indoor environment and the environment temperature are monitored to change at regular time and the mode switching condition is met or the mode switching instruction sent by the user intelligent terminal is received; the infrared sensor is used for sensing activity information of people in the indoor environment, and the activity information is uploaded to the heating secondary network regulation and control unit through the communication module.
The beneficial effects of the invention are as follows:
the invention regulates and controls the secondary network user regulation equipment by establishing a conventional optimized operation mode of the secondary network of the heating system so as to enable the indoor temperature of the user to reach a preset comfortable state; judging whether a user selects a heat supply energy saving mode through the intelligent terminal; if the user selects the heat supply energy saving mode, switching the operation mode of the secondary network of the heat supply system from the conventional optimized operation mode to the energy saving mode; based on a digital twin model of the secondary network of the heating system, establishing an energy-saving operation mode of the secondary network of the heating system, and regulating and controlling user regulation equipment of the secondary network so as to ensure that the indoor temperature of a user meets the current requirement of the user; the conventional optimized operation mode and the energy-saving mode are provided, and after the energy-saving mode is selected by a user, the mode is switched, so that the user requirement is met, the problem of single operation mode of the existing secondary network of the heating system is solved, a better energy-saving effect is achieved, and high economic benefit and social benefit are achieved.
Additional features and advantages will be set forth in the description which follows, and in part will be apparent from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and drawings.
In order to make the above objects, features and advantages of the present invention more comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a flow chart of a method for switching the control modes of a secondary network of a heating system according to the invention;
FIG. 2 is a block diagram of a system for switching a control mode of a two-level network of a heating system according to the present invention.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
Fig. 1 is a flow chart of a method for switching the household regulation modes of the secondary network of the heating system.
As shown in fig. 1, embodiment 1 provides a method for switching a household regulation mode of a secondary network of a heating system, which includes:
s1, establishing a heating system secondary network digital twin model by adopting a mechanism modeling and data identification method;
step S2, based on a digital twin model of the secondary network of the heating system, a conventional optimized operation mode of the secondary network of the heating system is established, and user control equipment of the secondary network is controlled so that the indoor temperature of a user reaches a preset comfortable state;
step S3, judging whether a user selects a heat supply energy saving mode through the intelligent terminal;
step S4, if the user selects a heat supply energy-saving mode, switching the operation mode of the secondary network of the heat supply system from a conventional optimized operation mode to an energy-saving mode;
s5, based on a digital twin model of the secondary network of the heating system, establishing a secondary network energy-saving operation mode of the heating system, and regulating and controlling secondary network user regulation and control equipment so as to enable the indoor temperature of a user to meet the current requirement of the user;
and S6, carrying out energy-saving analysis on regulation and control operation corresponding to a secondary network operation mode of the heating system based on the digital twin model of the secondary network of the heating system, and verifying the feasibility of regulation and control.
In this embodiment, in the step S1, a method of mechanism modeling and data identification is used to build a digital twin model of a secondary network of a heating system, which specifically includes:
establishing a digital twin model comprising a physical entity, a virtual entity, twin data service and connecting elements among all components of a secondary network unit building of a heating system;
the physical entity is the basis of a digital twin model and is a data source driven by the whole digital twin model; the virtual entity and the physical entity are mapped one by one and interacted in real time, elements of the physical space are described from multiple dimensions and multiple scales, the actual process of the physical entity is simulated, and element data are analyzed, evaluated, predicted and controlled; the twin data service integrates the physical space information and the virtual space information, ensures the real-time performance of data transmission, provides knowledge base data comprising intelligent algorithms, models, rule standards and expert experiences, and forms a twin database by fusing the physical information, the multi-time space associated information and the knowledge base data; the connection between the components realizes the interconnection of the components, and the real-time acquisition and feedback of data are realized between the physical entity and the twin data service through the sensor and the protocol transmission specification; the physical entity and the virtual entity carry out data transmission through a protocol, physical information is transmitted to the virtual space in real time to update the correction model, and the virtual entity carries out real-time control on the physical entity through an executor; the information transfer between the virtual entity and the twin data service is realized through a database interface;
and identifying the digital twin model, accessing the multi-working-condition real-time operation data of the secondary network unit building into the established digital twin model, and adopting a reverse identification method to carry out self-adaptive identification correction on the simulation result of the digital twin model to obtain the identified and corrected secondary network digital twin model of the heating system.
In this embodiment, in step S2, a conventional optimized operation mode of the secondary network of the heating system is established based on the digital twin model of the secondary network of the heating system, and the user control device of the secondary network is controlled so that the indoor temperature of the user reaches a preset comfort state, which specifically includes:
s201, carrying out equipment transformation on users of a secondary network unit building of a heating system, installing a heat meter at an inlet of a household heat supply pipeline of a typical heat user of a selected unit building, installing a temperature collector in a user room, and installing user regulation and control equipment at an inlet branch pipe of a household heat supply system of a heat user pipeline; the heat meter is used for monitoring water supply temperature, backwater temperature, water supply flow and heat supply; the user regulation and control equipment comprises an electric regulating valve and a regulating water pump;
s202, based on a heating system secondary network digital twin model, a first learning algorithm is adopted to learn and train the acquired historical heat metering data, weather data and user room temperature data, and then a heat load prediction model is established to obtain a user demand load predicted value;
s203, establishing a control model of the user regulation equipment by adopting a second learning algorithm based on the predicted value of the user demand load, the user room temperature, the target room temperature and the regulation data of the historical regulation equipment so as to meet the condition that the indoor temperature of the user reaches a preset comfort state, and obtaining a regulation strategy of the regulation equipment before each user.
In this embodiment, in the steps S3 and S4, it is determined whether the user has selected the heating energy-saving mode through the intelligent terminal, and if the user has selected the heating energy-saving mode, the operation mode of the secondary network of the heating system is switched from the conventional optimized operation mode to the energy-saving mode, which specifically includes:
a heat supply energy saving mode is arranged on the user intelligent terminal, and a user can select whether to switch to the heat supply energy saving mode according to the individual requirements of the user in a preset time period; the heat supply energy saving mode selection has a time interval dividing mechanism and a custom temperature selecting mechanism, custom temperature can be set, the heat supply energy saving mode is selected in a fixed time interval, and after the time interval reaches a set value, the heat supply energy saving mode is switched back to a conventional optimized operation mode; the custom temperature selection mechanism is less than a conventional preset temperature;
under normal conditions, the system operates in a conventional optimized operation mode, the change of the demand of a user heat supply mode is continuously monitored in the operation process of the heat supply secondary network system, when the fact that the user selects a heat supply energy-saving mode through the intelligent terminal and receives a heat supply operation mode switching instruction is monitored, the fact that the user has selected the heat supply energy-saving mode, a corresponding regulation time period and a corresponding regulation temperature are judged, and the user switches to the heat supply energy-saving mode in the corresponding regulation time period is judged.
In this embodiment, the user intelligent terminal is in communication connection with the heat supply secondary network system, and obtains user information and performs user login verification, and after the heat supply energy saving mode is selected, the heat supply mode switching state can be obtained; when the user selects the heat supply energy saving mode, different modes can be adopted to carry out heat supply energy saving rewards so as to encourage the user to select the heat supply energy saving mode when no one is at home or the heat supply requirement is low in daytime.
It should be noted that, after the user selects the heat supply energy saving mode, the energy saving effect can be fed back to the user, and compensation rewarding is properly performed according to the energy saving effect.
In this embodiment, in step S5, based on the digital twin model of the secondary network of the heating system, an energy-saving operation mode of the secondary network of the heating system is established, and the user control equipment of the secondary network is controlled so that the indoor temperature of the user meets the current requirement of the user, and the method specifically includes:
s501, carrying out equipment transformation on users of a secondary network unit building of a heating system, installing a heat meter at the inlet of a household heat supply pipeline of a typical heat user of a selected unit building, installing a temperature collector in a user room, and installing user regulation and control equipment at the inlet branch pipe of a household heat supply system of a heat user pipeline; the heat meter is used for monitoring water supply temperature, backwater temperature, water supply flow and heat supply; the user regulation and control equipment comprises an electric regulating valve and a regulating water pump;
s502, based on a digital twin model of a secondary network of the heating system, establishing an energy-saving model for adjusting the operation frequency of a water pump and the opening of an electric regulating valve of each user branch by adopting a learning algorithm according to the operation characteristics of the secondary network and user regulation equipment for selecting a heating energy-saving operation mode; if the basic flow demand value of each user branch is preset in the heat supply energy-saving mode, the operation frequency of the regulating water pump and the opening optimal value of each electric regulating valve of the corresponding user are obtained according to the established model and the optimizing algorithm, so that the operation energy consumption of the water pump is minimum while the flow of each user branch keeps the demand value, and the corresponding energy-saving effect is achieved;
the opening degree of the electric regulating valve and the running frequency of the regulating water pump are smaller than those of the conventional optimized running mode in the heat supply energy-saving mode; meanwhile, under the heat supply energy-saving operation mode, the secondary network of the heat supply system needs to meet the hydraulic balance degree constraint of each branch of the secondary network, the operation frequency constraint of the adjusting water pump and the opening constraint of the electric adjusting valve of each branch to achieve dynamic hydraulic balance.
In this embodiment, the method further includes: the intelligent user terminal is also provided with a heat supply induction mode, and the heat supply system regulates and controls the user regulation and control equipment by inducing the activity information of people in the indoor environment and the environment temperature; the heating system regularly monitors the change of the activity information and the environment temperature of people in the indoor environment, and switches the operation mode of the heating system from the current heating mode to the heating induction mode under the condition that the mode switching condition is met or a mode switching instruction sent by the intelligent terminal of the user is received; the infrared sensor is used for sensing activity information of people in the indoor environment, and the activity information is uploaded to the heat supply secondary network system through the communication module.
It should be noted that the present invention is not limited to the mentioned heating conventional optimizing operation mode, energy saving mode and induction mode, and includes other defined modes, so as to meet the personalized requirements of users; when different users select different operation modes, the stability and hydraulic balance of the heat supply secondary network are required to be considered, and the stable and reliable operation of the system is ensured.
Fig. 2 is a block diagram of a system for switching the control modes of the two-level network of the heating system according to the invention.
Example 2
The embodiment 2 provides a system for switching a household regulation and control mode of a secondary network of a heating system, which comprises a heating secondary network regulation and control unit and a user intelligent terminal, wherein the heating secondary network regulation and control unit comprises a digital twin model building module, a regulation and control module, a judging module, a mode switching module and a verification module; the heat supply secondary network regulation and control unit is in communication connection with the user intelligent terminal
The digital twin model building module is used for building a two-level network digital twin model of the heating system by adopting a mechanism modeling and data identification method;
the regulation and control module is used for establishing a conventional optimized operation mode of the secondary network of the heating system based on the digital twin model of the secondary network of the heating system, and regulating and controlling user regulation and control equipment of the secondary network so as to enable the indoor temperature of the user to reach a preset comfortable state;
the judging module is used for judging whether the user selects a heat supply energy saving mode through the intelligent terminal;
the mode switching module is used for switching the operation mode of the secondary network of the heating system from the conventional optimized operation mode to the energy-saving mode when the user selects the heating energy-saving mode;
the regulation and control module is also used for establishing a secondary network energy-saving operation mode of the heating system based on the secondary network digital twin model of the heating system, and regulating and controlling secondary network user regulation and control equipment so as to ensure that the indoor temperature of the user meets the current requirement of the user;
the verification module is used for carrying out energy-saving analysis on the regulation and control operation corresponding to the operation mode of the secondary network of the heating system based on the digital twin model of the secondary network of the heating system, and verifying the feasibility of regulation and control.
In this embodiment, the determining module is configured to determine whether the user has selected the heating energy-saving mode through the intelligent terminal and the mode switching module is configured to switch the operation mode of the secondary network of the heating system from the normal optimization operation mode to the energy-saving mode when the user has selected the heating energy-saving mode, and specifically includes:
a heat supply energy saving mode is arranged on the user intelligent terminal, and a user can select whether to switch to the heat supply energy saving mode according to the individual requirements of the user in a preset time period; the heat supply energy saving mode selection has a time interval dividing mechanism and a custom temperature selecting mechanism, custom temperature can be set, the heat supply energy saving mode is selected in a fixed time interval, and after the time interval reaches a set value, the heat supply energy saving mode is switched back to a conventional optimized operation mode; the custom temperature selection mechanism is less than a conventional preset temperature;
under normal conditions, the system operates in a conventional optimized operation mode, the change of the demand of a user heat supply mode is continuously monitored in the operation process of the heat supply secondary network system, when the fact that the user selects a heat supply energy-saving mode through the intelligent terminal and receives a heat supply operation mode switching instruction is monitored, the fact that the user has selected the heat supply energy-saving mode, a corresponding regulation time period and a corresponding regulation temperature are judged, and the user switches to the heat supply energy-saving mode in the corresponding regulation time period is judged.
In this embodiment, the user intelligent terminal is further provided with a heat supply induction mode, and the heat supply secondary network regulation and control unit regulates and controls the user regulation and control equipment by inducing activity information and environmental temperature of people in the indoor environment; the heat supply secondary network regulation and control unit is used for switching the operation mode of the heat supply system from the current heat supply mode to the heat supply induction mode through the mode switching module under the condition that the activity information of people in the indoor environment and the environment temperature are monitored to change at regular time and the mode switching condition is met or the mode switching instruction sent by the user intelligent terminal is received; the infrared sensor is used for sensing activity information of people in the indoor environment, and the activity information is uploaded to the heating secondary network regulation and control unit through the communication module.
In the several embodiments provided in this application, it should be understood that the disclosed systems and methods may be implemented in other ways as well. The system embodiments described above are merely illustrative, for example, of the flowcharts and block diagrams in the figures that illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various embodiments of the present invention. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
In addition, functional modules in the embodiments of the present invention may be integrated together to form a single part, or each module may exist alone, or two or more modules may be integrated to form a single part.
The functions, if implemented in the form of software functional modules and sold or used as a stand-alone product, may be stored on a computer readable storage medium. Based on this understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution in the form of a software product stored in a storage medium, comprising several instructions for causing a computer device (which may be a personal computer, a server, a network device, etc.) to perform all or part of the steps of the method of the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a magnetic disk, or an optical disk, or other various media capable of storing program codes.
With the above-described preferred embodiments according to the present invention as an illustration, the above-described descriptions can be used by persons skilled in the relevant art to make various changes and modifications without departing from the scope of the technical idea of the present invention. The technical scope of the present invention is not limited to the description, but must be determined according to the scope of claims.
Claims (10)
1. A method for switching the control modes of a secondary network of a heating system is characterized by comprising the following steps:
s1, establishing a heating system secondary network digital twin model by adopting a mechanism modeling and data identification method;
step S2, based on a digital twin model of the secondary network of the heating system, a conventional optimized operation mode of the secondary network of the heating system is established, and user control equipment of the secondary network is controlled so that the indoor temperature of a user reaches a preset comfortable state;
step S3, judging whether a user selects a heat supply energy saving mode through the intelligent terminal;
step S4, if the user selects a heat supply energy-saving mode, switching the operation mode of the secondary network of the heat supply system from a conventional optimized operation mode to an energy-saving mode;
s5, based on a digital twin model of the secondary network of the heating system, establishing a secondary network energy-saving operation mode of the heating system, and regulating and controlling secondary network user regulation and control equipment so as to enable the indoor temperature of a user to meet the current requirement of the user;
and S6, carrying out energy-saving analysis on regulation and control operation corresponding to a secondary network operation mode of the heating system based on the digital twin model of the secondary network of the heating system, and verifying the feasibility of regulation and control.
2. The method for switching the household regulation and control modes of the secondary network of the heating system according to claim 1, wherein in the step S1, a mechanism modeling and data identification method is adopted to build a digital twin model of the secondary network of the heating system, and the method specifically comprises the following steps:
establishing a digital twin model comprising a physical entity, a virtual entity, twin data service and connecting elements among all components of a secondary network unit building of a heating system;
the physical entity is a data source of the whole digital twin model;
the virtual entity performs simulation on the actual process of the physical entity, and performs analysis data, evaluation, prediction and control on the element data;
the twin data service integrates the physical space information and the virtual space information, ensures the real-time performance of data transmission, provides knowledge base data comprising intelligent algorithms, models, rule standards and expert experiences, and forms a twin database by fusing the physical information, the multi-time space associated information and the knowledge base data;
the connection between the components is used for realizing interconnection of the components, and the real-time acquisition and feedback of data are realized between the physical entity and the twin data service through the sensor and the protocol transmission specification;
the physical entity and the virtual entity perform data transmission through a protocol, physical information is transmitted to the virtual space in real time to update the correction model, and the virtual entity performs real-time control on the physical entity through an actuator;
the virtual entity and the twin data service are subjected to information transfer through a database interface;
and identifying the digital twin model, accessing the multi-working-condition real-time operation data of the secondary network unit building into the established digital twin model, and adopting a reverse identification method to carry out self-adaptive identification correction on the simulation result of the digital twin model to obtain the identified and corrected secondary network digital twin model of the heating system.
3. The method for switching the individual control modes of the secondary network of the heating system according to claim 1, wherein in the step S2, a conventional optimized operation mode of the secondary network of the heating system is established based on a digital twin model of the secondary network of the heating system, and the user control equipment of the secondary network is controlled so that the indoor temperature of the user reaches a preset state, and the method specifically comprises the following steps:
step S201, performing equipment transformation on users of a secondary network unit building of a heating system, installing a heat meter at the inlet of a household heat supply pipeline of a typical heat user of a selected unit building, installing a temperature collector in a user room, and installing user regulation and control equipment at the inlet branch pipe of a household heat supply system of a heat user pipeline; the heat meter is used for monitoring water supply temperature, backwater temperature, water supply flow and heat supply; the user regulation and control equipment comprises an electric regulating valve and a regulating water pump;
step S202, based on a heating system secondary network digital twin model, a first learning algorithm is adopted to learn and train the acquired historical heat metering data, weather data and user room temperature data, and then a heat load prediction model is established to obtain a user demand load predicted value;
step S203, a control model of the user regulation equipment is built by adopting a second learning algorithm based on the predicted value of the user demand load and the regulation data of the user room temperature, the target room temperature and the historical regulation equipment so as to meet the condition that the indoor temperature of the user reaches a preset comfort state, and a regulation strategy of the user regulation equipment in front of each user is obtained.
4. The method for switching the two-level network household regulation and control mode of the heating system according to claim 1, wherein in the step S3 and the step S4, it is determined whether the user has selected the heating energy-saving mode through the intelligent terminal, and if the user has selected the heating energy-saving mode, the two-level network operation mode of the heating system is switched from the normal optimization operation mode to the energy-saving mode, and the method specifically comprises:
a heat supply energy saving mode is arranged on the user intelligent terminal, and a user can select whether to switch to the heat supply energy saving mode according to the individual requirements of the user in a preset time period; the heat supply energy saving mode selection has a time interval dividing mechanism and a custom temperature selecting mechanism, custom temperature can be set, the heat supply energy saving mode is selected in a fixed time interval, and after the time interval reaches a set value, the heat supply energy saving mode is switched back to a conventional optimized operation mode; the custom temperature selection mechanism is less than a conventional preset temperature;
under normal conditions, the system operates in a conventional optimized operation mode, the change of the demand of a user heat supply mode is continuously monitored in the operation process of the heat supply secondary network system, when the fact that the user selects a heat supply energy-saving mode through the intelligent terminal and receives a heat supply operation mode switching instruction is monitored, the fact that the user has selected the heat supply energy-saving mode, a corresponding regulation time period and a corresponding regulation temperature are judged, and the user switches to the heat supply energy-saving mode in the corresponding regulation time period is judged.
5. The method for switching the household regulation and control modes of the two-level network of the heating system according to claim 1, wherein the user intelligent terminal is in communication connection with the two-level network system for obtaining user information and performing user login verification, and after the heating energy-saving mode is selected, the switching state of the heating mode can be obtained; when the user selects the heat supply energy saving mode, heat supply energy saving rewards can be carried out in different modes.
6. The method for switching the individual control modes of the secondary network of the heating system according to claim 1, wherein in the step S5, based on the digital twin model of the secondary network of the heating system, an energy-saving operation mode of the secondary network of the heating system is established, and the user control equipment of the secondary network is controlled so that the indoor temperature of the user meets the current requirement of the user, and the method specifically comprises the following steps:
step S501, performing equipment transformation on users of a secondary network unit building of a heating system, installing a heat meter at the inlet of a household heat supply pipeline of a typical heat user of a selected unit building, installing a temperature collector in a user room, and installing user regulation and control equipment at the inlet branch pipe of a household heat supply system of a heat user pipeline; the heat meter is used for monitoring water supply temperature, backwater temperature, water supply flow and heat supply; the user regulation and control equipment comprises an electric regulating valve and a regulating water pump;
step S502, based on a digital twin model of a secondary network of the heating system, according to the operation characteristics of the secondary network and user regulation and control equipment for selecting a heating energy-saving operation mode, an energy-saving model for adjusting the operation frequency of a water pump and the opening of an electric regulating valve of each user branch is established by adopting a learning algorithm; if the basic flow demand value of each user branch is preset in the heat supply energy-saving mode, the operation frequency of the regulating water pump and the opening optimal value of each electric regulating valve of the corresponding user are obtained according to the established model and the optimizing algorithm, so that the operation energy consumption of the water pump is minimum while the flow of each user branch keeps the demand value, and the corresponding energy-saving effect is achieved;
the opening degree of the electric regulating valve and the running frequency of the regulating water pump are smaller than those of the conventional optimized running mode in the heat supply energy-saving mode; meanwhile, under the heat supply energy-saving operation mode, the secondary network of the heat supply system needs to meet the hydraulic balance degree constraint of each branch of the secondary network, the operation frequency constraint of the adjusting water pump and the opening constraint of the electric adjusting valve of each branch to achieve dynamic hydraulic balance.
7. The method for switching a control mode of a two-level network of a heating system according to claim 1, further comprising: the intelligent user terminal is also provided with a heat supply induction mode, and the heat supply system regulates and controls the user regulation and control equipment by inducing the activity information of people in the indoor environment and the environment temperature; the heating system regularly monitors the change of the activity information and the environment temperature of people in the indoor environment, and switches the running mode of the heating system from the current heating mode to the heating induction mode under the condition that the mode switching condition is met or the mode switching instruction sent by the user intelligent terminal is received.
8. A heat supply system two-level network household regulation mode switching system is characterized in that: the system comprises a heat supply secondary network regulation and control unit and a user intelligent terminal, wherein the heat supply secondary network regulation and control unit comprises a digital twin model building module, a regulation and control module, a judging module, a mode switching module and a verification module; the heat supply secondary network regulation and control unit is in communication connection with the user intelligent terminal;
the digital twin model building module is used for building a two-level network digital twin model of the heating system by adopting a mechanism modeling and data identification method;
the regulation and control module is used for establishing a conventional optimized operation mode of the secondary network of the heating system based on the digital twin model of the secondary network of the heating system, and regulating and controlling user regulation and control equipment of the secondary network so as to enable the indoor temperature of the user to reach a preset comfortable state;
the judging module is used for judging whether the user selects a heat supply energy saving mode through the intelligent terminal;
the mode switching module is used for switching the operation mode of the secondary network of the heating system from the conventional optimized operation mode to the energy-saving mode when the user selects the heating energy-saving mode;
the regulation and control module is also used for establishing a secondary network energy-saving operation mode of the heating system based on the secondary network digital twin model of the heating system, and regulating and controlling secondary network user regulation and control equipment so as to ensure that the indoor temperature of the user meets the current requirement of the user;
the verification module is used for carrying out energy-saving analysis on the regulation and control operation corresponding to the operation mode of the secondary network of the heating system based on the digital twin model of the secondary network of the heating system, and verifying the feasibility of regulation and control.
9. The system according to claim 8, wherein the determining module is configured to determine whether the user has selected the heating energy saving mode through the intelligent terminal and the mode switching module is configured to switch the heating system secondary network operation mode from the normal optimization operation mode to the energy saving mode when the user has selected the heating energy saving mode, and specifically includes:
a heat supply energy saving mode is arranged on the user intelligent terminal, and a user can select whether to switch to the heat supply energy saving mode according to the individual requirements of the user in a preset time period; the heat supply energy saving mode selection has a time period division mechanism, the heat supply energy saving mode can be selected in a certain time period, and after the time period reaches a set value, the heat supply energy saving mode is switched back to the conventional optimized operation mode;
under normal conditions, the system operates in a conventional optimized operation mode, the change of the demand of a user heat supply mode is continuously monitored in the operation process of the heat supply secondary network system, when the user is monitored to select a heat supply energy-saving mode through the intelligent terminal and a heat supply operation mode switching instruction is received, the user is judged to have selected the heat supply energy-saving mode and a corresponding regulation time period, and the user is switched to the heat supply energy-saving mode in the corresponding regulation time period.
10. The system for switching a household regulation and control mode of a secondary network of a heating system according to claim 8, wherein the user intelligent terminal is further provided with a heating induction mode, and the secondary network regulation and control unit regulates and controls the user regulation and control equipment by inducing activity information of people in an indoor environment and ambient temperature; the heat supply secondary network regulation and control unit is used for switching the operation mode of the heat supply system from the current heat supply mode to the heat supply induction mode through the mode switching module under the condition that the activity information of people in the indoor environment and the environment temperature are monitored to change at regular time and the mode switching condition is met or the mode switching instruction sent by the user intelligent terminal is received; the infrared sensor is used for sensing activity information of people in the indoor environment, and the activity information is uploaded to the heating secondary network regulation and control unit through the communication module.
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