CN101853591B - Integrated control system experiment device and operation method - Google Patents

Abstract

The invention provides an experimental device for an integrated control system, which includes a DC speed control system, an AC speed control system, a servo control system, an elevator group control system, a water flow and temperature control system, and a man-machine interface Panel control system, serial communication protocol, first network line, data communication between each control system through serial communication protocol, the first network line connects each control system to the network, and each control system is connected to the man-machine interface panel control The combination of the system realizes the human-computer interaction interface. The experimental device of the integrated control system includes a variety of typical control system hardware equipment, through the intersection of electrical control programmable logic controller, computer, network communication and other disciplines, the research content is enriched. The control system experimental device has changed the original laboratory structure, allowing students to realize the integration of control systems as engineers.

Description

An integrated control system experimental device and operation method

technical field

The invention relates to an integrated control system, in particular to an experimental device and an operation method for the integration of various typical control systems.

Background technique

In the electrical majors of engineering colleges and universities, experimental courses occupy a very important position. Only through hands-on practice can students have a deeper understanding of the courses they have learned.

The existing electrical major laboratories are all built for a certain course. Usually, one laboratory can only meet the experimental needs of one course. For example, the automatic control system laboratory only includes experiments on DC speed regulation and AC speed regulation. Without preparation, students can only do experiments on these aspects.

At present, this kind of laboratory built around a certain course can only meet the needs of one course, but after graduation, students are mostly exposed to control systems integrated with multiple courses in actual engineering, and the current laboratory cannot enable students Combining the knowledge of multiple courses to design and integrate a control system by myself, this caused the fresh graduates to be unable to quickly adapt to the needs of work.

Contents of the invention

The present invention is carried out to solve the problem that the laboratory for a certain course construction can only satisfy one course, and its purpose is to provide an experimental device for an integrated control system, which includes a variety of typical control systems and can meet the After studying certain professional courses, students design and integrate a control system by themselves by combining the knowledge of multiple courses.

The integrated control system experimental device involved in the present invention includes: DC speed control system, AC speed control system, servo control system, elevator group control system, water flow and temperature control system, man-machine interface panel control system, serial communication protocol and the first network connection line, data communication is carried out between each control system through the serial communication protocol, and the first network connection line connects each system to the network. The data communication inside each control system is carried out through serial ports and hard wires. The DC speed control system, the AC speed control system, the servo control system, the elevator group control system, the water flow and temperature control The system is respectively combined with the man-machine interface panel control system to realize the man-machine interaction interface. Through the design of each typical control system, the experimental engineering project is realized from hardware to software.

Preferably, the integrated control system experimental device further includes a communication extension port of a third-party manufacturer and a second network cable, wherein the second network cable is connected to the network through the communication extension port of a third-party manufacturer, and the communication extension port of a third-party manufacturer Communicate with devices of other communication protocols.

Preferably, the DC speed control system includes: a first programmable computer controller, a speed controller, a DC motor, a first photoelectric editor, and a first computer equipped with integrated development software, wherein the first programmable The computer controller is B&R2003 series, and the speed controller can be Eurofins 514C speed controller. The integrated development software of the first computer equipped with integrated development software is B&R control system software. The first is equipped with integrated development software for computer-implemented interfaces and database management, among other things. RS232 communication between the B&R2003 series programmable computer controller and the computer equipped with B&R control system software, the B&R 2003 series programmable computer controller and the 514C speed control The speed controller issues control instructions, the 514C speed controller controls the speed of the DC motor, and the first photoelectric encoder obtains the speed of the DC motor and feeds it back to the B&R 2003 series programmable computer controller. Input the system parameters in the first computer equipped with integrated development software, and through the communication between the various hardware in the DC speed control system, the obtained data will be displayed in the man-machine interface panel control system, and the system parameters will be determined according to the data. debugging. The engineering project of the terminal is established through the control system software.

According to the present invention, the DC speed regulation control system includes an open-loop control system and a closed-loop control system, and the control algorithm is added to the closed-loop control system to realize the error of the DC motor speed to meet the engineering requirements.

Preferably, the AC speed regulation control system includes: a second programmable computer controller, a frequency converter, an AC motor, a second photoelectric editor, and a second computer equipped with integrated development software, wherein the second programmable computer controls The controller is B&R2003 series, and the integrated development software of the second computer equipped with integrated development software is B&R control system software. The second is equipped with integrated development software for computer-implemented interfaces and database management. RS232 communication is carried out between the B&R 2003 series programmable computer controller and the computer equipped with B&R control system software, and the B&R 2003 series programmable computer controller is hard-wired with the input/output port of the frequency converter and issued control to the frequency converter command, the frequency converter adjusts the speed of the AC motor, the second photoelectric encoder obtains the speed of the AC motor and feeds it back to the B&R 2003 series programmable computer controller, and enters the system parameters in the second computer equipped with integrated development software, through The communication between various hardware in the AC speed control system, the data obtained are displayed in the man-machine interface panel control system, and the system parameters are debugged according to the data. The engineering project of the terminal is established through the control system software.

According to the present invention, the AC speed regulation control system includes an open-loop control system and a closed-loop control system, and the control algorithm is added to the closed-loop control system to realize the error of the AC motor speed to meet the engineering requirements.

Preferably, the servo control system includes: a third programmable computer controller, a servo drive controller, a servo motor, a serial communication protocol bus, a third photoelectric editor and a third computer equipped with integrated development software, wherein the The third programmable computer controller is B&R2003 series, the servo drive controller is B&R ACOPOS 1022 servo drive controller, the integrated development software of the third computer equipped with integrated development software is B&R control system software, the third is equipped with Integrate and develop the software's computer-implemented interface and database management. RS232 communication between the B&R2003 series programmable computer controller and the third computer equipped with integrated development software, serial communication protocol bus communication between the B&R2003 series programmable computer controller and B&R ACOPOS 1022 servo drive controller , the servo control system further includes a POWERLINK bus, and the POWERLINK bus communication is performed between the B&R2003 series programmable computer controller and the B&R ACOPOS 1022 servo drive controller. The speed of the servo motor is adjusted by the B&RACOPOS 1022 servo drive controller, and the third photoelectric encoder obtains the speed of the servo motor and feeds it back to the B&R 2003 series programmable computer controller, which is input in the third computer equipped with integrated development software For system parameters, the data obtained through communication between various hardware in the servo control system are displayed in the man-machine interface panel control system, and the system parameters are debugged according to the data.

Preferably, the elevator group control system includes: a fourth programmable computer controller, an elevator model, a programmable logic controller, and a fourth computer equipped with integrated development software, wherein the fourth programmable computer controller is B&R2003 series , the programmable logic controller is a Siemens S7-200 programmable logic controller, and the integrated development software of the fourth computer equipped with integrated development software includes B&R control system software and STEP7_Micro/WIN software. The fourth is equipped with integrated development software for computer-implemented interfaces and database management. RS232 communication between the B&R2003 series programmable computer controller and the computer equipped with B&R control system software and STEP7_Micro/WIN software, between the B&R2003 series programmable computer controller and the Siemens S7-200 programmable logic controller Perform RS232 communication. The B&R2003 series programmable computer controller is hard-wired with the Siemens S7-200 programmable logic controller at the input/output port to issue control instructions to the elevator model, and input system parameters in the fourth computer equipped with integrated development software , through the communication between the various hardware in the elevator group control system, the data obtained are displayed in the man-machine interface panel control system, and system parameters are debugged according to the data.

According to the present invention, the elevator group control system reads the elevator running signal in the programmable logic controller to the programmable computer controller, and the programmable computer controller can control the elevators to realize group control of the elevators.

Preferably, the water flow and temperature control system includes: a fifth programmable computer controller, a process control model, and a fifth computer equipped with integrated development software, wherein the fifth programmable computer controller is B&R2003 series, and the fifth programmable computer controller is B&R2003 series. 5. The integrated development software of the computer equipped with the integrated development software is B&R control system software, and the computer equipped with the integrated development software realizes the interface and database management and other contents. RS232 communication is carried out between the B&R2003 series programmable computer controller and the computer equipped with B&R control system software, the B&R2003 series programmable computer controller and the process control model are hard-wired connected to the input/output port and issued to the process control model Control instructions, input system parameters in the fifth computer equipped with integrated development software, through the communication between the various hardware in the water flow and temperature control system, the obtained data is displayed in the man-machine interface panel control system , and debug the system parameters according to the data. A variety of control algorithms are added to control analog quantities such as water flow and temperature to ensure control accuracy.

Preferably, the man-machine interface panel control system includes a control panel, wherein the control panel is a B&R control panel.

According to the invention, the integrated control system experimental device includes a variety of typical control system hardware devices, and the research content is enriched through the intersection of multiple disciplines such as electrical control programmable logic controllers, computers, and network communications. The control system experimental device has changed the original laboratory structure, allowing students to realize the integration of control systems as engineers.

Description of drawings

Readers will have a clearer understanding of various aspects of the present invention after reading the detailed description of the present invention with reference to the accompanying drawings. in,

Figure 1 is a network topology diagram of the experimental device integrated with each control system;

Figure 2 is a structural diagram of the DC speed control system;

Figure 3 is a structural diagram of the AC speed control system;

Figure 4 is a structural diagram of the servo control system;

Fig. 5 is a structural diagram of the elevator group control system; and

Figure 6 is a structural diagram of the water flow and temperature control system.

Detailed ways

The specific implementation manners of the present invention will be described in further detail below with reference to the accompanying drawings. Throughout the description, like reference numerals refer to like parts.

Figure 1 is a network topology diagram of the experimental device integrated with various control systems. Referring to Figure 1, the experimental device 100 integrated by various control systems includes a DC speed control system 101, an AC speed control system 102, a servo control system 103, an elevator group control system 104, a water flow and temperature control system 105, and a man-machine interface. The panel control system 106 , the serial communication protocol 108 , the first network connection line 109 and the second network connection line 110 . The integrated control system experimental device 100 further includes a communication expansion port 107 of a third-party manufacturer, which is used for communicating with devices of other communication protocols.

The data communication between each control system is carried out through the serial communication protocol 108, and the data communication within each control system is carried out through serial ports and hard wires. The DC speed control system 101, the AC speed control system 102, the servo control system 103, the elevator The control system 104, the water flow and temperature control system 105 are respectively combined with the man-machine interface panel control system 106 to realize the man-machine interaction interface. Through the design of each typical control system, the experimental engineering project is realized from hardware to software. The first network connection line 109 is used to connect each system to the network, and the second network connection line 110 is used to connect the communication expansion port 107 of the third party manufacturer to the network. Wherein, the servo control system 103 further includes a POWERLINK bus 111 , and the POWERLINK bus 111 communicates between the programmable computer controller 112 and the servo control system.

The DC speed control system 101 includes an open-loop control system and a closed-loop control system (not shown in the figure), and the control algorithm is added to the closed-loop control system to realize the error of the DC motor speed to meet the needs of the project;

The AC speed control system 102 includes an open-loop control system and a closed-loop control system (not shown in the figure), and the control algorithm is added to the closed-loop control system to realize the error of the AC motor speed to meet the engineering requirements.

Figure 2 is a structural diagram of the DC speed control system. Referring to Fig. 2, the DC speed regulation control system 101 includes: the first computer 201 equipped with B&R control system software, the first B&R2003 series programmable computer controller 202, the 514C speed regulation controller 203 of Eurofins, the DC motor 204, the first A photo editor 205 . The first computer 201 equipped with B&R control system software realizes interface and database management and other contents. RS232 communication between the first B&R2003 series programmable computer controller 202 and the first computer 201 equipped with B&R control system software, the first B&R 2003 series programmable computer controller 202 and 514C speed controller 203 for input/output hard-wire connection, and give control commands to the 514C speed controller 203, the 514C speed controller 203 controls the speed of the DC motor 204, the first photoelectric encoder 205 obtains the speed of the DC motor 204 and feeds it back to the first B&R 2003 series Programmable computer controller 202, input system parameters in the first computer 201 equipped with B&R control system software, through the communication between various hardware in the DC speed control system 101, the obtained data is in the man-machine interface panel control system 106 displayed, and debug the system parameters according to the data. The engineering project of the terminal is established through the control system software.

Figure 3 is a structural diagram of the AC speed control system. Referring to Fig. 3, the AC speed control system 102 includes: a second computer 301 equipped with B&R control system software, a second B&R2003 series programmable computer controller 302, a frequency converter 303, an AC motor 304, and a second photoelectric editor 305 . The second computer 301 equipped with B&R control system software realizes interface and database management and other contents. RS232 communication is carried out between the second B&R 2003 series programmable computer controller 302 and the second computer 301 equipped with B&R control system software, and the second B&R 2003 series programmable computer controller 302 and the frequency converter 303 carry out input/output port hardware line connection and give a control instruction to the frequency converter 303, the frequency converter 303 adjusts the rotating speed of the AC motor 304, the second photoelectric encoder 305 obtains the rotating speed of the AC motor 304 and feeds it back to the second B&R2003 series programmable computer controller 302, in the second Input the system parameters into the computer 301 equipped with B&R control system software, and through the communication between the various hardware in the AC speed control system 102, the data obtained are displayed in the man-machine interface panel control system 106, and the system parameters are determined according to the data. debugging. The engineering project of the terminal is established through the control system software.

Figure 4 is a structural diagram of the servo control system. Referring to Fig. 4, the servo control system 103 includes: the third computer 401 equipped with B&R control system software, the third B&R2003 series programmable computer controller 402, the B&R ACOPOS 1022 servo drive controller 403, the servo motor 404, the third photoelectric Editor 405. The third computer 401 equipped with B&R control system software realizes interface and database management and other contents. RS232 communication between the third B&R2003 series programmable computer controller 402 and the third computer 401 equipped with B&R control system software, and between the third B&R2003 series programmable computer controller 402 and B&R ACOPOS 1022 servo drive controller 403 Serial communication protocol bus communication, the servo control system 103 further includes a POWERLINK bus 111, the POWERLINK bus 111 communication is performed between the third B&R2003 series programmable computer controller 402 and the third B&R ACOPOS 1022 servo drive controller 403. The rotation speed of the servo motor 404 is adjusted by the B&R ACOPOS 1022 servo drive controller 403, and the third photoelectric encoder 405 obtains the rotation speed of the servo motor 404 and feeds it back to the third B&R 2003 series programmable computer controller 402. System parameters are input into the computer 401 of the system software, and the data obtained are displayed in the man-machine interface panel control system 106 through communication between various hardware in the servo control system 103, and the system parameters are debugged according to the data.

The servo control system 103 can realize the control of the servo motor 404. In this system, through the communication between the third B&R2003 series programmable computer controller 402 and the third B&R ACOPOS 1022 servo drive controller 403, you can be familiar with the servo controller. The basic application and the construction of the whole system, and the method of network control.

Figure 5 is a structural diagram of the elevator group control system. With reference to Fig. 5, elevator group control system 104 comprises: the 4th computer 501 that B&R control system software and STEP7_Micro/WIN software are equipped with, the 4th B&R2003 series programmable computer controller 502, Siemens S7-200 programmable logic controller 503, Elevator model 504. Fourthly, a computer 501 equipped with B&R control system software and STEP7_Micro/WIN software realizes content such as interface and database management. RS232 communication between the fourth B&R2003 series programmable computer controller 502 and the fourth computer 501 equipped with B&R control system software and STEP7_Micro/WIN software, the fourth B&R2003 series programmable computer controller 502 and Siemens S7-200 programmable RS232 communication is performed between logic controllers 503 . The fourth B&R2003 series programmable computer controller 502 is connected with the Siemens S7-200 programmable logic controller 503 by hard-wired input/output ports and gives control instructions to the elevator model 504. The fourth is equipped with B&R control system software and STEP7_Micro/ Input the system parameters in the computer 501 of WIN software, and through the communication between the various hardware in the elevator group control system 104, the data obtained are displayed in the man-machine interface panel control system 106, and the system parameters are debugged according to the data.

The elevator group control system 104 reads the elevator running signal in the Siemens S7-200 programmable logic controller 503 to the fourth B&R2003 series programmable computer controller 502, and the fourth B&R2003 series programmable computer controller 502 can control the elevator , to realize the group control of the elevator.

Figure 6 is a structural diagram of the water flow and temperature control system. Referring to Fig. 6, the water flow and temperature control system 105 includes: a fifth computer 601 equipped with B&R control system software, a fifth B&R2003 series programmable computer controller 602, and a process control model 603. Fifthly, the computer 601 equipped with B&R control system software implements interface and database management and other contents. RS232 communication between the fifth B&R2003 series programmable computer controller 602 and the fifth computer 601 equipped with B&R control system software, the fifth B&R2003 series programmable computer controller 601 and the process control model 603 carry out hard-wired input/output ports Connect and issue control instructions to the process control model 603, input system parameters in the fifth computer 601 equipped with B&R control system software, and communicate with each hardware in the water flow and temperature control system 105, the obtained data is in the man-machine The interface panel is displayed in the control system 106, and system parameters are debugged according to the data. A variety of control algorithms are added to control analog quantities such as water flow and temperature to ensure control accuracy.

Claims (13)

1. An integrated control system experimental apparatus, comprising: the elevator control system comprises a direct current speed regulation control system, an alternating current speed regulation control system, a servo control system, an elevator group control system, a water flow and temperature control system, a man-machine interface panel control system and a first network connecting line, wherein data communication is carried out between the control systems through a serial communication protocol, the first network connecting line enables the control systems to be connected with a network, the data communication in the control systems is carried out through a serial port and a hard line, the direct current speed regulation control system, the alternating current speed regulation control system, the servo control system, the elevator group control system and the water flow and temperature control system are respectively combined with the man-machine interface panel control system to realize a man-machine interaction interface, and the direct current speed regulation control system comprises: the system comprises a first programmable computer controller, a speed regulation controller, a direct current motor, a first photoelectric encoder and a first computer with integrated development software, wherein RS232 communication is carried out between the first programmable computer controller and the first computer with integrated development software, the first programmable computer controller is in input/output port hard-line connection with the speed regulation controller and gives a control instruction to the speed regulation controller, the speed regulation controller controls the rotating speed of the direct current motor, the first photoelectric encoder obtains the rotating speed of the direct current motor and feeds the rotating speed back to the first programmable computer controller, system parameters are input into the first computer with integrated development software, and the obtained data are displayed in a man-machine interface panel control system through communication among hardware in the direct current speed regulation control system, and debugging the system parameters according to the data.

2. The integrated control system experimental apparatus of claim 1, wherein the ac speed regulation control system comprises: a second programmable computer controller, a frequency converter, an AC motor, a second photoelectric encoder, a second computer with integrated development software, the second programmable computer controller is communicated with the second computer with the integrated development software through RS232, the second programmable computer controller is in input/output port hard-line connection with the frequency converter and gives a control instruction to the frequency converter, the frequency converter controls the rotating speed of the alternating current motor, the second photoelectric encoder obtains the rotating speed of the alternating current motor and feeds the rotating speed back to the second programmable computer controller, inputting system parameters in the second computer with integrated development software, displaying the obtained data in a man-machine interface panel control system through communication among all hardware in the alternating current speed regulation control system, and debugging the system parameters according to the data.

3. The integrated control system experiment device of claim 1, wherein the servo control system comprises: a third programmable computer controller, a servo drive controller, a servo motor, a third photoelectric encoder and a third computer with integrated development software, the third programmable computer controller is in RS232 communication with the third computer with integrated development software, the third programmable computer controller and the servo drive controller are in serial communication protocol bus communication, the servo drive controller adjusts the rotating speed of the servo motor, the third photoelectric encoder obtains the rotating speed of the servo motor and feeds the rotating speed back to the third programmable computer controller, inputting system parameters in the third computer with integrated development software, displaying the obtained data in a man-machine interface panel control system through communication among all hardware in the servo control system, and debugging the system parameters according to the data.

4. The integrated control system experiment apparatus of claim 3, wherein the servo control system further comprises a POWER LINK bus, and the third programmable computer controller communicates with the servo drive controller via the POWER LINK bus.

5. The integrated control system experiment device of claim 1, wherein the elevator group control system comprises: the fourth programmable computer controller is in RS232 communication with the fourth computer with integrated development software, the fourth programmable computer controller is in input/output port hard-line connection with the programmable logic controller and issues a control command to the elevator model, system parameters are input into the fourth computer with integrated development software, and the obtained data is displayed in a man-machine interface panel control system through communication among all hardware in the elevator group control system and is debugged according to the data.

6. The integrated control system experiment device of claim 1, wherein the water flow and temperature control system comprises: fifth programmable computer controller, process control model, fifth are equipped with the computer of integrated development software, fifth programmable computer controller with carry out RS232 communication between the fifth computer that is equipped with integrated development software, fifth programmable computer controller with process control model carries out input/output port hardwire connection and right process control model assigns control command input system parameter in the fifth computer that is equipped with integrated development software, through communication between each hardware in water flow and the temperature control system, the data that obtain show in man-machine interface panel control system to carry out the debugging of system parameter according to data.

7. The integrated control system experiment device of claim 1, further comprising a third party vendor communication expansion port and a second network cable, wherein the second network cable connects the third party vendor communication expansion port to a network.

8. The integrated control system experiment device of claim 1, wherein the throttle controller is an european corporation 514C throttle controller.

9. The integrated control system experiment device of claim 3, wherein the servo drive controller is a B & R ACOPOS 1022 servo drive controller.

10. The integrated control system experiment device of claim 5, wherein the programmable logic controller is a Siemens S7-200 programmable logic controller.

11. The method of claim 1, wherein the dc speed control system, the ac speed control system, the servo control system, the elevator group control system, the water flow and temperature control system, and the human interface panel control system perform respective data communications via a network, data results of the respective control systems perform data communications via the serial communication protocol, and the dc speed control system, the ac speed control system, the servo control system, the elevator group control system, the water flow and temperature control system respectively combine with the human interface panel control system to implement a human-machine interaction interface.

12. The method of claim 11, wherein the human interface panel control system comprises a control panel.

13. The method of operating an integrated control system experiment device according to claim 12, wherein the control panel is a B & R control panel.

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