CN116382396A - Intelligent variable flow energy-saving control system and method - Google Patents
Intelligent variable flow energy-saving control system and method Download PDFInfo
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- CN116382396A CN116382396A CN202310575351.4A CN202310575351A CN116382396A CN 116382396 A CN116382396 A CN 116382396A CN 202310575351 A CN202310575351 A CN 202310575351A CN 116382396 A CN116382396 A CN 116382396A
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- 238000004891 communication Methods 0.000 claims description 6
- 238000004134 energy conservation Methods 0.000 claims 3
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- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D27/00—Simultaneous control of variables covered by two or more of main groups G05D1/00 - G05D25/00
- G05D27/02—Simultaneous control of variables covered by two or more of main groups G05D1/00 - G05D25/00 characterised by the use of electric means
Abstract
The invention provides an intelligent variable flow energy-saving control system, which comprises: the system comprises an acquisition system, a control system, a variable frequency system and an executing piece; the acquisition system is used for transmitting one or a combination of acquired pipeline temperature data, pressure data and flow data to the control system; the output end of the control system is connected with the input end of the variable frequency system and is used for calculating based on the received data input by the acquisition module to respectively generate one or a combination of load temperature data, load pressure data and load flow data corresponding to the data; the output end of the variable frequency system is connected with the executing piece and is used for enabling the executing piece to operate based on the received load temperature data, load pressure data and/or load flow data output by the control system. According to various modes such as the flow, the flow speed and the pressure of liquid and/or gas, the flow speed and the pressure requirement of a water pump and/or a fan are automatically changed, and the intelligent self-adaptive energy-saving effect is realized.
Description
Technical Field
The invention relates to the technical field of automatic control, in particular to an intelligent variable flow energy-saving control system and method.
Background
In the prior art, the total running power of a circulating pump of a general factory air-conditioning water system is about 398kw/H, and the circulating pump is normally operated at the power frequency of 24 hours, so that electric energy is wasted. And the air-conditioning water system has no automatic control system, and the output power of the pump can not be reduced timely according to the requirement. That is, in the process of heating ventilation, water supply and drainage, liquid, wind pipelines and the like requiring the transmission of a water pump and a fan, the actual demand of a user changes according to the process requirement, and the partial transmission is larger than the actual demand, so that the energy waste is caused.
At present, the type of the water pump is usually selected according to the design load and with a certain safety margin (10%), and the system operates under partial load most of the time in the actual operation process, so that the flow adjustment can not be performed according to the actual requirement of the system on the water circulation flow, and the energy waste can be caused.
The above problems are currently in need of solution.
Disclosure of Invention
The invention aims to provide an intelligent variable flow energy-saving control system and method for improving the condition of energy waste in the prior art.
The technical scheme adopted for solving the technical problems is as follows: in one aspect, the present invention provides an intelligent variable flow energy saving control system, the system comprising: the system comprises an acquisition system, a control system, a variable frequency system and an executing piece; the output end of the acquisition system is connected with the input end of the control system and is used for transmitting one or a combination of the acquired pipeline temperature data, pressure data and flow data to the control system; the output end of the control system is connected with the input end of the variable frequency system and is used for calculating based on the received data input by the acquisition module to respectively generate one or a combination of load temperature data, load pressure data and load flow data corresponding to the data; the output end of the variable frequency system is connected with the executing piece and is used for enabling the executing piece to operate based on the received load temperature data, load pressure data and/or load flow data output by the control system.
Preferably, the collection system comprises one or a combination of a temperature collection module, a pressure collection module and a flow collection module.
Preferably, the acquisition system is further connected with a digital-to-analog conversion module, and the data acquired by the acquisition system are converted into digital signals by the analog-to-digital conversion module and then are transmitted to the control system.
Preferably, the acquisition system further comprises a temperature sensor, a pressure sensor and a flow sensor; and the signal output ends of the temperature sensor, the pressure sensor and the flow sensor are respectively connected with the signal acquisition end of the control system through data lines.
Preferably, the control system comprises a filtering module, a data compensation module and a PID control module; the filtering module is used for filtering the received temperature data, pressure data and/or flow data; the data compensation module is used for carrying out data compensation processing on the temperature data, the pressure data and/or the flow data after the filtering processing; and the PID control module is used for calculating the temperature data, the pressure data and/or the flow data after the data compensation to generate load temperature data, load pressure data and/or load flow data corresponding to the temperature data, the pressure data and/or the flow data.
Preferably, the data compensation module is further configured to perform data compensation on the temperature data, the pressure data and/or the flow data after the filtering processing based on a preset compensation value, so that the temperature data, the pressure data and/or the flow data reach a system value corresponding to the temperature data, the pressure data and/or the flow data.
Preferably, the PID control module is further configured to calculate the compensated temperature data, pressure data and/or flow data based on a preset algorithm to generate load temperature data, load pressure data and/or load flow data corresponding to the compensated temperature data, pressure data and/or flow data.
Preferably, the control system further comprises a communication module and a storage module; the communication module is used for transmitting data generated by the control system; the storage module is used for storing data acquired by the acquisition system and data generated by the control system.
In another aspect, the present invention provides an intelligent variable flow energy-saving control method, which includes: acquiring temperature data, pressure data and/or flow data in the pipeline through an acquisition system; the control system preprocesses the collected temperature data, pressure data and/or flow data; calculating the preprocessed temperature data, pressure data and/or flow data based on a preset algorithm to generate corresponding load temperature data, load pressure data and/or load flow data; the variable frequency system controls the operation of the actuators based on the load temperature data, the load pressure data, and/or the load flow data.
In yet another aspect, the present invention provides a computer readable storage medium having one or more instructions stored therein, the computer instructions for causing the computer to perform the intelligent variable flow rate energy saving control method described above.
In yet another aspect, the present invention provides an electronic device, comprising: a memory and a processor; at least one program instruction is stored in the memory; the processor loads and executes the at least one program instruction to realize the intelligent variable flow energy-saving control method.
The beneficial effects of the invention are as follows: the invention provides an intelligent variable flow energy-saving control system, which comprises: the system comprises an acquisition system, a control system, a variable frequency system and an executing piece; the output end of the acquisition system is connected with the input end of the control system and is used for transmitting one or a combination of the acquired pipeline temperature data, pressure data and flow data to the control system; the output end of the control system is connected with the input end of the variable frequency system and is used for calculating based on the received data input by the acquisition module to respectively generate one or a combination of load temperature data, load pressure data and load flow data corresponding to the data; the output end of the variable frequency system is connected with the executing piece and is used for enabling the executing piece to operate based on the received load temperature data, load pressure data and/or load flow data output by the control system. According to various modes such as the flow, the flow speed, the pressure and the like of liquid and/or gas, the requirements such as the flow, the flow speed, the pressure and the like of a water pump and/or a fan are automatically changed, and the intelligent self-adaptive energy-saving effect is realized.
Drawings
The invention is further described below with reference to the drawings and examples.
Fig. 1 is a schematic structural diagram of an intelligent variable flow energy-saving control system provided by an embodiment of the invention.
Fig. 2 is a flowchart of an intelligent variable flow energy-saving control method provided by an embodiment of the invention.
Fig. 3 is a partial schematic block diagram of an electronic device provided by the present invention.
Detailed Description
Before discussing exemplary embodiments in more detail, it should be mentioned that some exemplary embodiments are described as processes or methods depicted as flowcharts. Although a flowchart depicts operations as a sequential process, many of the operations can be performed in parallel, concurrently, or at the same time. Furthermore, the order of the operations may be rearranged. The process may be terminated when its operations are completed, but may have additional steps not included in the figures. The processes may correspond to methods, functions, procedures, subroutines, and the like.
It will be understood that, although the terms "first," "second," etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another element. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element, without departing from the scope of example embodiments. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
The present invention will now be described in detail with reference to the accompanying drawings. The figure is a simplified schematic diagram illustrating the basic structure of the invention only by way of illustration, and therefore it shows only the constitution related to the invention.
For ease of understanding, the terms appearing in the examples are explained:
and (3) filtering: (Wave filtering) is an operation of filtering out frequencies of a specific band in a signal, and is an important measure for suppressing and preventing interference, and filtering is classified into classical filtering and modern filtering.
PID controller: (Proportion Integration Differentiation) a proportional-integral-derivative controller consisting of a proportional unit (P), an integral unit (I) and a derivative unit (D). Three parameters are set through Kp, ki and Kd. PID controllers are mainly applicable to systems that are substantially linear and whose dynamics are not time-dependent.
Example 1
Please refer to fig. 1, which is a schematic structural diagram of an intelligent variable flow energy-saving control system according to an embodiment of the present application.
As an example, the system comprises: acquisition system 110, control system 120, variable frequency system 130, and actuators 140; the output end of the collection system 110 is connected to the input end of the control system 120, and is used for transmitting one or a combination of collected pipeline temperature data, pressure data and flow data to the control system 120.
Optionally, the collection system 110 includes one or a combination of a temperature collection module 1101, a pressure collection module 1102, and a flow collection module 1103. Wherein the acquisition system 110 further comprises a temperature sensor, a pressure sensor, and a flow sensor; and the signal output ends of the temperature sensor, the pressure sensor and the flow sensor are respectively connected with the signal acquisition end of the control system through data lines. That is, the temperature acquisition module 1101 is provided with a temperature sensor, which may include at least one temperature sensor for acquiring data of multiple paths, by which the temperature of the supply water is detected; the pressure acquisition module 1102 is provided with a pressure sensor, which may include at least one pressure sensor, through which the pressure of the supplied water is detected; the flow collection module 1103 is configured with a flow sensor, which may include at least one flow sensor, through which the flow of the supply water is detected.
Optionally, the acquisition system 110 is further connected to a digital-to-analog conversion module, and the data acquired by the acquisition system 110 is converted into a digital signal by the analog-to-digital conversion module and then sent to the control system 120.
As an example, the output end of the control system 120 is connected to the input end of the frequency conversion system 130, and is configured to generate one or a combination of load temperature data, load pressure data and load flow data corresponding to the calculation performed based on the received data input by the acquisition system 110.
Optionally, the control system 120 includes a filtering module 1201, a data compensation module 1202, and a PID control module 1203; the filtering module 1201 is configured to perform filtering processing on the received temperature data, pressure data, and/or flow data; the data compensation module 1202 is configured to perform data compensation processing on the temperature data, the pressure data and/or the flow data after the filtering processing; the PID control module 1203 is configured to calculate the temperature data, the pressure data, and/or the flow data after the data compensation to generate load temperature data, load pressure data, and/or load flow data corresponding to the temperature data, the pressure data, and/or the flow data. Specifically, since the data collected by the sensor is not the actual data of the system during the actual operation of the device, and may deviate from the system value to some extent, for example, the flow sensor will usually only detect the water flow near the flow sensor for a certain time, but not the whole water flow in the pipeline, so if the flow value detected by the flow sensor is used as the actual value of the water flow in the pipeline, the detected data may deviate, and thus the data detected by the flow sensor may be filtered first, for example, the value of the flow sensor is obtained 100 times every 5s, and the average value is taken as the obtained actual water flow value in the pipeline based on the obtained value.
Optionally, the data compensation module is further configured to perform data compensation on the temperature data, the pressure data and/or the flow data after the filtering processing based on a preset compensation value, so that the temperature data, the pressure data and/or the flow data reach a system value corresponding to the temperature data, the pressure data and/or the flow data. Because of the energy loss and other conditions, the obtained actual flow value and the system value have a certain deviation, so that the obtained actual flow value can be subjected to numerical compensation, for example, resin compensation can be performed on the obtained actual flow value based on a preset compensation value, and particularly, if the actual value is 5KG/H, but the preset value of the system is 6KG/H, 1KG/H can be automatically compensated for the obtained actual flow value to reach the system value. Optionally, because the different installation positions of the sensors can make the local water temperature and water pressure or flow different from the actual values, local points are collected instead of the points of the whole system, so that the numerical compensation can be performed on the machine running condition in a period of time by analyzing the required compensation value according to the experience of related personnel.
Optionally, the PID control module 1203 is configured with a PID controller, and is further configured to calculate the compensated temperature data, pressure data, and/or flow data based on a preset algorithm to generate load temperature data, load pressure data, and/or load flow data corresponding to the compensated temperature data, pressure data, and/or flow data. The load temperature data, the load pressure data and the load flow data are actual demands, namely, the load data indicate the actual load of the tail end of the water pump and/or the fan, so that the actual demands of users can be adjusted in a self-adaptive mode through the intelligent control system under the condition that the load of the tail end of the water pump and/or the fan changes.
Optionally, the control system 120 further includes a communication module 1204 and a storage module 1205; the communication module 1204 is configured to transmit data generated by the control system 120; the storage module 1205 is used for storing the data collected by the collection system 110 and the data generated by the control system 120. The storage of the data by the storage module 1205 is convenient for the following related technicians to inquire the data generated by the equipment, and is also beneficial to the energy saving and visual display, so that the user can visually observe the use condition of the energy. More specifically, an external port may be provided in the control system 120 for displaying the acquired related data and the generated related data by an external display screen for facilitating observation of the acquired related data value.
As an example, the output end of the variable frequency system 130 is connected to the executing component 140, so that the executing component 140 operates based on the received load temperature data, load pressure data, and/or load flow data output by the control system 120.
Optionally, the frequency conversion system 130 adopts a water pump frequency converter, and controls the rotation speed of the controlled object (water pump) by changing the frequency mode of the working power supply of the motor.
Optionally, the actuator 140 includes one or a combination of a water pump or a fan. In fig. 1, the actuator 140 is represented by a water pump.
According to the embodiment of the application, the requirements of the flow, the flow speed, the pressure and the like of the water pump and/or the fan are automatically changed according to various modes of the flow, the flow speed, the pressure and the like of the liquid and/or the gas, so that the intelligent self-adaptive energy-saving effect is realized.
Example 2
Referring to fig. 2, the present embodiment provides a flow chart of an intelligent variable flow energy-saving control method.
As an example, the method comprises:
s210: temperature data, pressure data and/or flow data in the pipeline are acquired by the acquisition system.
S220: the control system preprocesses the collected temperature data, pressure data and/or flow data.
S230: and calculating the preprocessed temperature data, pressure data and/or flow data based on a preset algorithm to generate corresponding load temperature data, load pressure data and/or load flow data.
S240: the variable frequency system controls the operation of the actuators based on the load temperature data, the load pressure data, and/or the load flow data.
Example 3
The embodiment of the invention also provides a computer readable storage medium, wherein one or more instructions are stored in the computer readable storage medium, and the intelligent variable flow energy-saving control program realizes the steps of the intelligent variable flow energy-saving control method when being executed by a processor. Because the storage medium adopts all the technical schemes of all the embodiments, the storage medium has at least all the beneficial effects brought by the technical schemes of the embodiments, and the description is omitted here.
Example 4
Referring to fig. 3, an embodiment of the present invention further provides an electronic device, including: a memory 302 and a processor 301; at least one program instruction is stored in the memory 302; the processor 301 loads and executes the at least one program instruction to implement the intelligent variable flow rate energy saving control method as provided in embodiment 2.
The memory 302 and the processor 301 are connected by a bus, which may include any number of interconnected buses and bridges, which connect together the various circuits of the one or more processors 301 and the memory 302. The bus may also connect various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface between the bus and the transceiver. The transceiver may be one element or may be a plurality of elements, such as a plurality of receivers and transmitters, providing a means for communicating with various other apparatus over a transmission medium. The data processed by the processor 301 is transmitted over a wireless medium via an antenna, which further receives the data and transmits the data to the processor 301.
The processor 301 is responsible for managing the bus and general processing and may also provide various functions including timing, peripheral interfaces, voltage regulation, power management, and other control functions. And memory 302 may be used to store data used by processor 301 in performing operations.
The foregoing is merely an embodiment of the present invention, and a specific structure and characteristics of common knowledge in the art, which are well known in the scheme, are not described herein, so that a person of ordinary skill in the art knows all the prior art in the application day or before the priority date of the present invention, and can know all the prior art in the field, and have the capability of applying the conventional experimental means before the date, so that a person of ordinary skill in the art can complete and implement the present embodiment in combination with his own capability in the light of the present application, and some typical known structures or known methods should not be an obstacle for a person of ordinary skill in the art to implement the present application. It should be noted that modifications and improvements can be made by those skilled in the art without departing from the structure of the present invention, and these should also be considered as the scope of the present invention, which does not affect the effect of the implementation of the present invention and the utility of the patent. The protection scope of the present application shall be subject to the content of the claims, and the description of the specific embodiments and the like in the specification can be used for explaining the content of the claims.
Claims (9)
1. An intelligent variable flow energy-saving control system, the system comprising:
the system comprises an acquisition system, a control system, a variable frequency system and an executing piece;
the output end of the acquisition system is connected with the input end of the control system and is used for transmitting one or a combination of the acquired pipeline temperature data, pressure data and flow data to the control system;
the output end of the control system is connected with the input end of the variable frequency system and is used for calculating based on the received data input by the acquisition system to respectively generate one or a combination of load temperature data, load pressure data and load flow data corresponding to the data;
the output end of the variable frequency system is connected with the executing piece and is used for enabling the executing piece to operate based on the received load temperature data, load pressure data and/or load flow data output by the control system.
2. The intelligent variable flow energy conservation control system of claim 1, wherein the acquisition system comprises one or a combination of a temperature acquisition module, a pressure acquisition module, and a flow acquisition module.
3. The intelligent variable flow energy-saving control system according to claim 1, wherein the acquisition system is further connected with a digital-to-analog conversion module, and the data acquired by the acquisition system is converted into a digital signal by the analog-to-digital conversion module to the control system.
4. The intelligent variable flow energy conservation control system of claim 2, wherein the acquisition system further comprises a temperature sensor, a pressure sensor, and a flow sensor;
and the signal output ends of the temperature sensor, the pressure sensor and the flow sensor are respectively connected with the signal acquisition end of the control system through data lines.
5. The intelligent variable flow energy saving control system of claim 1, wherein the control system comprises a filtering module, a data compensation module, a PID control module;
the filtering module is used for filtering the received temperature data, pressure data and/or flow data;
the data compensation module is used for carrying out data compensation processing on the temperature data, the pressure data and/or the flow data after the filtering processing;
and the PID control module is used for calculating the temperature data, the pressure data and/or the flow data after the data compensation to generate load temperature data, load pressure data and/or load flow data corresponding to the temperature data, the pressure data and/or the flow data.
6. The intelligent variable flow energy-saving control system according to claim 5, wherein the data compensation module is further configured to perform data compensation on the temperature data, the pressure data and/or the flow data after the filtering process based on a preset compensation value, so that the temperature data, the pressure data and/or the flow data reach a system value corresponding to the temperature data, the pressure data and/or the flow data.
7. The intelligent variable flow energy saving control system of claim 5, wherein the PID control module is further configured to calculate the compensated temperature data, pressure data, and/or flow data based on a preset algorithm to generate load temperature data, load pressure data, and/or load flow data corresponding to the compensated temperature data, pressure data, and/or flow data.
8. The intelligent variable flow energy conservation control system of claim 1, wherein the control system further comprises a communication module and a memory module;
the communication module is used for transmitting data generated by the control system;
the storage module is used for storing data acquired by the acquisition system and data generated by the control system.
9. An intelligent variable flow energy-saving control method is characterized by comprising the following steps:
acquiring temperature data, pressure data and/or flow data in the pipeline through an acquisition system;
the control system preprocesses the collected temperature data, pressure data and/or flow data;
calculating the preprocessed temperature data, pressure data and/or flow data based on a preset algorithm to generate corresponding load temperature data, load pressure data and/or load flow data;
the variable frequency system controls the operation of the actuators based on the load temperature data, the load pressure data, and/or the load flow data.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310575351.4A CN116382396A (en) | 2023-05-22 | 2023-05-22 | Intelligent variable flow energy-saving control system and method |
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| CN202310575351.4A CN116382396A (en) | 2023-05-22 | 2023-05-22 | Intelligent variable flow energy-saving control system and method |
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| CN202310575351.4A Withdrawn CN116382396A (en) | 2023-05-22 | 2023-05-22 | Intelligent variable flow energy-saving control system and method |
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Application publication date: 20230704 |