CN111338279A - Intelligent variable frequency control cabinet - Google Patents

Intelligent variable frequency control cabinet Download PDF

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Publication number
CN111338279A
CN111338279A CN202010147120.XA CN202010147120A CN111338279A CN 111338279 A CN111338279 A CN 111338279A CN 202010147120 A CN202010147120 A CN 202010147120A CN 111338279 A CN111338279 A CN 111338279A
Authority
CN
China
Prior art keywords
plc
control cabinet
variable frequency
module
controller
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202010147120.XA
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Chinese (zh)
Inventor
李少臣
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhejiang Yitian Intelligent Technology Co ltd
Original Assignee
Zhejiang Yitian Intelligent Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zhejiang Yitian Intelligent Technology Co ltd filed Critical Zhejiang Yitian Intelligent Technology Co ltd
Priority to CN202010147120.XA priority Critical patent/CN111338279A/en
Publication of CN111338279A publication Critical patent/CN111338279A/en
Pending legal-status Critical Current

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Classifications

    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00Programme-control systems
    • G05B19/02Programme-control systems electric
    • G05B19/04Programme control other than numerical control, i.e. in sequence controllers or logic controllers
    • G05B19/05Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts
    • G05B19/054Input/output
    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00Program-control systems
    • G05B2219/10Plc systems
    • G05B2219/11Plc I-O input output
    • G05B2219/1103Special, intelligent I-O processor, also plc can only access via processor

Abstract

The intelligent variable frequency control cabinet comprises a control cabinet body, wherein a variable frequency controller, a PLC (programmable logic controller) and an Internet of things module are arranged in the control cabinet body, the variable frequency controller and the Internet of things module are connected with the PLC, an I/0 transmission module, an A/D (analog/digital) signal acquisition module and a wireless DTU (digital television unit) terminal are arranged in the PLC, the I/0 transmission module is connected with the variable frequency controller and the Internet of things module, the I/0 transmission module is connected with the A/D signal acquisition module, and the PLC is connected with a remote monitoring center through the wireless DTU terminal; the Internet of things module is connected with the remote monitoring center, and can receive a control instruction sent by the remote monitoring center and send a control signal to the PLC controller, and the PLC controller sends a control signal to the variable frequency controller; the variable frequency controller is connected with the field equipment and can adjust the running condition of the field equipment according to the control signal of the PLC; the invention is convenient for the remote monitoring center to carry out remote point inspection, timely and accurately judge the operation such as the fault and the like, is convenient for scheduling at any time and reasonably arranges the work.

Description

Intelligent variable frequency control cabinet
Technical Field
The invention relates to the field of industrial automation, in particular to an intelligent variable frequency control cabinet.
Background
At present, the transmission part of an industrial automatic motor is mainly realized by a frequency converter, and a frequency conversion control cabinet is mainly used for adjusting the working frequency of equipment, reducing energy consumption, stably starting the equipment, reducing the damage of large current generated when the equipment is directly started to the motor, and is widely applied to oil field equipment; in order to realize automatic control, a frequency converter and a logic controller are combined frequently to realize the purpose of automatic control, but the size of the high-power frequency converter is correspondingly larger, a large number of oil wells in an oil field are distributed in the field and on the sea, a certain distance exists between an operation area and a management area, corresponding traffic equipment needs to be equipped for inspection and operation personnel, the cost of arranging personnel and operating cost is higher, the field maintenance is very inconvenient, the frequency converter replacement is time-consuming and labor-consuming, the maintenance is carried out by personnel with hard professional knowledge, and the maintenance time and the cost consumption are very large. Meanwhile, if field equipment mainly refers to a water injection pump and an oil pumping unit, small faults occur, and no professional exists on the field, so that the fault reason is difficult to judge, and needs to be specifically processed after the professional goes to the field for judgment, and the maintenance cost is increased invisibly. In addition, because the frequency conversion control cabinet is an independent body designed and installed by a manufacturer, the independent body can only be installed on the cabinet body during application, the installation cost is high, a large installation space is needed, the size of a frequency converter with large power is large, multiple persons are needed to perform installation operation simultaneously, the application site conditions of the frequency conversion control cabinet are limited, great inconvenience is brought to maintenance and replacement, and further intelligent improvement needs to be made on the frequency conversion control cabinet.
Disclosure of Invention
The invention aims to solve the technical problem of providing an intelligent variable frequency control cabinet which can be installed in a modularized manner and is convenient for a remote monitoring center to monitor in real time in the prior art.
The technical scheme adopted by the invention for solving the technical problems is as follows: the intelligent variable frequency control cabinet comprises a control cabinet body, wherein a variable frequency controller, a PLC (programmable logic controller) and an Internet of things module are arranged in the control cabinet body, the variable frequency controller and the Internet of things module are both connected with the PLC, an I/0 transmission module, an A/D (analog/digital) signal acquisition module and a wireless DTU (digital television unit) terminal are arranged in the PLC, the I/0 transmission module is connected with the variable frequency controller and the Internet of things module, the I/0 transmission module is connected with the A/D signal acquisition module, the PLC can acquire the operating parameters of the variable frequency controller through the I/0 transmission module, and the PLC is connected with a remote monitoring center through the wireless DTU terminal; the Internet of things module comprises a signal processing module, the signal processing module is connected with the remote monitoring center, can receive a control instruction sent by the remote monitoring center and sends a control signal to the PLC, and the PLC receives the control signal and sends the control signal to the variable frequency controller; the frequency conversion controller is connected with the field device, a plurality of sensors are arranged on the field device, each sensor is electrically connected with the PLC, data lines of the sensors are respectively connected with the input end of the PLC, and the frequency conversion controller can adjust the running state of the field device according to control signals of the PLC.
Furthermore, the remote monitoring center is responsible for monitoring and information storage, and an upper computer is arranged in the remote monitoring center.
Furthermore, the variable frequency controller, the PLC and the Internet of things module are installed in a modularized integrated mode.
Furthermore, a touch control operation panel capable of displaying the operation parameters of the variable frequency controller is arranged on the control cabinet body, a human-computer interface module matched with the touch control operation panel is arranged in the control cabinet body, and the human-computer interface module is connected with the PLC and used for feeding back operation signals of the touch control operation panel to the PLC; and the PLC controls the field equipment through the variable frequency controller according to an operation signal of the upper computer or the touch operation panel.
Further, this internal fault alarm module that is provided with of switch board, fault alarm module is connected with the PLC controller.
Furthermore, the wireless DTU terminal adopts two or more combined communication modes, at least comprising a 433MHZ data transmission radio station, mobile GPRS communication, Dalingtong data communication and Wi-Fi wireless communication.
Further, the PLC and the remote monitoring center can also adopt wired communication transmission.
Furthermore, the upper computer can check historical data of the operating condition of the field equipment, and can export reports and print the reports.
Further, a power module is further arranged in the control cabinet body and comprises an AC-DC converter, the input end of the AC-DC converter is connected with an input power supply, the output end of the AC-DC converter is connected with a power supply end of the PLC, and the input voltage is input by adopting 100-plus-240V wide voltage.
Further, the front of switch board body is equipped with a plurality of pilot lamps, every the pilot lamp all is connected with the PLC controller, and the pilot lamp includes power indicator, power frequency operation pilot lamp, frequency conversion operation pilot lamp, trouble pilot lamp at least.
Compared with the prior art, the intelligent variable frequency control cabinet has the following beneficial effects: the invention is designed aiming at the water injection pump and the oil pumping unit, is convenient for a remote monitoring center to carry out remote point inspection, timely and accurately judge the operations of faults, system operation self-resetting, operation state and the like, is convenient for the remote monitoring center to dispatch at any time, and reasonably arranges the work; the frequency conversion controller, the PLC and the Internet of things module are modularly installed, the PLC is used as a main factor to communicate the frequency conversion controller, the PLC and the Internet of things module through data, safe and reliable operation is achieved, modularization is not only modular in design, but also the modularized technology of the process, the manufactured modularized technology and the modularized technology of delivery and service are included, so that an enterprise can reduce the number of parts and reduce deformation design, and more personalized requirements can be met more quickly through least modules and parts; in addition, the intelligent variable frequency control cabinet adopts the information management of the Internet of things, effectively combines practical application, is provided with a touch control operation panel, and the graph simulates physical and chemical display of the signal equipment application state to assist the electric service maintenance personnel to quickly position abnormal equipment.
Drawings
FIG. 1 is a block diagram of the connection relationship between the components of the intelligent frequency conversion control cabinet.
Detailed Description
The invention is described in further detail below with reference to the accompanying examples.
As shown in fig. 1, the intelligent variable frequency control cabinet comprises a control cabinet body, wherein a variable frequency controller, a PLC controller and an internet of things module are arranged in the control cabinet body, the variable frequency controller and the internet of things module are both connected with the PLC controller, an I/0 transmission module, an a/D signal acquisition module and a wireless DTU terminal are arranged in the PLC controller, the I/0 transmission module is connected with the variable frequency controller and the internet of things module, the I/0 transmission module is connected with the a/D signal acquisition module, the PLC controller can acquire operating parameters of the variable frequency controller through the I/0 transmission module, and the PLC controller is connected with a remote monitoring center through the wireless DTU terminal; the Internet of things module comprises a signal processing module, the signal processing module is connected with the remote monitoring center, can receive a control instruction sent by the remote monitoring center and send a control signal to the PLC, and the PLC receives the control signal and then sends a corresponding control signal to the variable frequency controller.
In addition, the variable frequency controller is connected with field equipment, the field equipment is provided with a plurality of sensors, and each sensor is electrically connected with the PLC controller respectively; the field equipment is mainly a water injection pump or an oil pumping unit applied to an oil field, for example, the oil pumping unit can be provided with a flow sensor, a load sensor, an angular displacement sensor and the like; the water injection pump can be provided with a temperature sensor, a noise sensor for monitoring operation noise, an oil product sensor and a liquid level sensor for monitoring lubricating oil, a vibration sensor for monitoring operation vibration condition, a rotating speed sensor for monitoring rotating speed, a pressure sensor for monitoring water inlet and outlet pressure and the like; the data lines of the sensors are respectively connected with the input end of the PLC, and the variable frequency controller can correspondingly adjust the running state of the field equipment according to the control signal of the PLC, for example, the running speed of the oil pumping unit is reduced, so that the running parameters of the field equipment can be recovered to be normal.
Preferably, the remote monitoring center is responsible for monitoring and information storage, an upper computer is arranged in the remote monitoring center, technicians can monitor the field equipment in real time by operating the upper computer, and can carry out fault diagnosis and reset operation on the field equipment according to monitoring conditions.
Preferably, the variable frequency controller, the PLC and the Internet of things module are installed in a modularized integrated mode, and more personalized requirements can be met more quickly through the least modules and parts.
Preferably, the control cabinet body is provided with a touch control operation panel capable of displaying the operation parameters of the variable frequency controller, the control cabinet body is internally provided with a human-computer interface module matched with the touch control operation panel, and the human-computer interface module is connected with the PLC and used for feeding back operation signals of the touch control operation panel to the PLC, so that manual operation control is realized, and effective reference data are also provided for production optimization. And the PLC controls the field equipment through the variable frequency controller according to the operating signal of the upper computer or the touch control operating panel.
Preferably, this internal fault alarm module that is provided with of switch board, fault alarm module is connected with the PLC controller, and the frequency conversion controller operating parameter that detects as the PLC controller or field device's sensor parameter normal range that deviates can send actuating signal to fault alarm module, makes fault alarm module send the chimes of doom.
Preferably, the wireless DTU terminal adopts two or more combined communication modes, which at least include 433MHZ data radio station, mobile GPRS communication, smart data communication, and Wi-Fi wireless communication.
In addition, the PLC and the remote monitoring center can also adopt wired communication transmission.
Preferably, the upper computer can check historical data of the operating condition of the field equipment, and can export a report form and print the report form for data analysis.
Preferably, a power module is further arranged in the control cabinet body, the power module comprises an AC-DC converter, the input end of the AC-DC converter is connected with an input power supply, and the output end of the AC-DC converter is connected with a power supply end of the PLC controller; the input voltage adopts 100-240V wide voltage input, can adapt to the large fluctuation of the power grid voltage, and keeps supplying power to the PLC.
Preferably, the front of switch board body is equipped with a plurality of pilot lamps, and every pilot lamp all is connected with the PLC controller, and the pilot lamp includes power indicator, power frequency operation pilot lamp, frequency conversion operation pilot lamp, trouble pilot lamp at least.
By adopting the system, the invention can realize real-time monitoring, remote automatic control, easy maintenance and basically no need of manual guard, can finish maintenance of non-mechanical faults in a remote monitoring center, greatly reduces the management cost and the human resource cost of enterprises, and can well ensure the production safety.
Finally, it should be noted that: the above examples are merely illustrative of the technical solutions of the present invention, and not limitative thereof; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims (10)

1. The intelligent variable frequency control cabinet is characterized by comprising a control cabinet body, wherein a variable frequency controller, a PLC (programmable logic controller) and an Internet of things module are arranged in the control cabinet body, the variable frequency controller and the Internet of things module are connected with the PLC, an I/0 transmission module, an A/D (analog/digital) signal acquisition module and a wireless DTU (digital television unit) terminal are arranged in the PLC, the I/0 transmission module is connected with the variable frequency controller and the Internet of things module, the I/0 transmission module is connected with the A/D signal acquisition module, the PLC can acquire the operating parameters of the variable frequency controller through the I/0 transmission module, and the PLC is connected with a remote monitoring center through the wireless DTU terminal; the Internet of things module comprises a signal processing module, the signal processing module is connected with the remote monitoring center, can receive a control instruction sent by the remote monitoring center and sends a control signal to the PLC, and the PLC receives the control signal and sends the control signal to the variable frequency controller; the frequency conversion controller is connected with the field device, a plurality of sensors are arranged on the field device, each sensor is electrically connected with the PLC, data lines of the sensors are respectively connected with the input end of the PLC, and the frequency conversion controller can adjust the running state of the field device according to control signals of the PLC.
2. The intelligent variable frequency control cabinet according to claim 1, wherein the remote monitoring center is responsible for monitoring and information storage, and an upper computer is arranged in the remote monitoring center.
3. The intelligent variable frequency control cabinet according to claim 1, wherein the variable frequency controller, the PLC and the IOT module are installed in a modular integrated manner.
4. The intelligent variable frequency control cabinet according to claim 1, wherein a touch control operation panel capable of displaying operation parameters of the variable frequency controller is arranged on the control cabinet body, a human-computer interface module matched with the touch control operation panel is arranged in the control cabinet body, and the human-computer interface module is connected with the PLC and used for feeding back operation signals of the touch control operation panel to the PLC; and the PLC controls the field equipment through the variable frequency controller according to an operation signal of the upper computer or the touch operation panel.
5. The intelligent variable frequency control cabinet according to claim 1, wherein a fault alarm module is arranged in the control cabinet body, and the fault alarm module is connected with the PLC.
6. The intelligent frequency conversion control cabinet according to claim 1, wherein the wireless DTU terminal adopts two or more combined communication modes, at least including 433MHZ data transmission radio station, mobile GPRS communication, Dalingtong data communication, and Wi-Fi wireless communication.
7. The intelligent frequency conversion control cabinet of claim 1, wherein the PLC and the remote monitoring center can also adopt wired communication transmission.
8. The intelligent variable frequency control cabinet according to claim 2, wherein the upper computer can view historical data of the operating conditions of the field devices, and can export and print reports.
9. The intelligent frequency conversion control cabinet as claimed in claim 1, wherein a power module is further arranged in the control cabinet body, the power module comprises an AC-DC converter, an input end of the AC-DC converter is connected with an input power supply, an output end of the AC-DC converter is connected with a power supply end of the PLC controller, and the input voltage is input with a voltage of 100-240V width.
10. The intelligent frequency conversion control cabinet according to claim 1, wherein a plurality of indicator lamps are arranged on the front surface of the control cabinet body, each indicator lamp is connected with the PLC, and the indicator lamps at least comprise a power indicator lamp, a power frequency operation indicator lamp, a frequency conversion operation indicator lamp, an operation indicator lamp and a fault indicator lamp.
CN202010147120.XA 2020-03-05 2020-03-05 Intelligent variable frequency control cabinet Pending CN111338279A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010147120.XA CN111338279A (en) 2020-03-05 2020-03-05 Intelligent variable frequency control cabinet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010147120.XA CN111338279A (en) 2020-03-05 2020-03-05 Intelligent variable frequency control cabinet

Publications (1)

Publication Number Publication Date
CN111338279A true CN111338279A (en) 2020-06-26

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010147120.XA Pending CN111338279A (en) 2020-03-05 2020-03-05 Intelligent variable frequency control cabinet

Country Status (1)

Country Link
CN (1) CN111338279A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111668940A (en) * 2020-07-03 2020-09-15 中国人民解放军火箭军工程设计研究院 Power station control system and control method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111668940A (en) * 2020-07-03 2020-09-15 中国人民解放军火箭军工程设计研究院 Power station control system and control method

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