CN1763668A - High-voltage frequency converter control system with networking function and intelligent control - Google Patents
High-voltage frequency converter control system with networking function and intelligent control Download PDFInfo
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- CN1763668A CN1763668A CN 200510105776 CN200510105776A CN1763668A CN 1763668 A CN1763668 A CN 1763668A CN 200510105776 CN200510105776 CN 200510105776 CN 200510105776 A CN200510105776 A CN 200510105776A CN 1763668 A CN1763668 A CN 1763668A
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Abstract
The invention provides a high pressure converter control system of network and intelligence control function in the network intelligence control technique domain, which comprises the following parts: high pressure converter control unit, local monitor system touching screen, remote monitor system, programmable logic controller and field bus for system communication, wherein the high pressure converter control unit connects the programmable logic controller through field bus; the local monitor system touching screen connects programmable logic controller through field bus, which realizes the local monitor; the programmable logic controller connects remote monitor system through industry Ethernet, which realizes the remote monitor; high pressure converter control unit connects the part of high pressure converter control through optical fiber. The invention adapts intelligent fuzzy controller instead of traditional proportion, bulk and differentiated control.
Description
Technical field
The invention belongs to network intelligence control technology field, particularly a kind of high voltage converter control system with network savvy and Based Intelligent Control, it designs at capcade multi-level high-voltage frequency transfomrer, is a kind of control system that can realize local and remote monitoring.
Background technology
Capcade multi-level high-voltage frequency transfomrer has been applied in the commercial production, what device adopted is that a plurality of cascade of power units modes constitute, system is comparatively complicated, development along with industrial automation, a lot of automated productions can both be realized network savvy, realize concentrated management and monitoring, this also requires high voltage converter also to have the control function of networking, makes its easier realization management and monitoring.
Summary of the invention
The object of the present invention is to provide a kind of have network savvy and Based Intelligent Control high voltage converter control system, can realize local monitor and remote monitoring by fieldbus.
The present invention includes: the control module of high voltage converter, local monitor system touch are shielded (PMU), long distance control system, programmable logic controller (PLC) (PLC) and are used for the fieldbus of system communication; Wherein, the control module of high voltage converter comprises: digital signal processor (DSP) digital control unit, pulse distribution plate (PDB), optical fiber daughter board (FBS) and fuzzy controller; Fuzzy controller is by unitization, obfuscation control, estimation control law, ambiguity solution control, database, rule base and the controlled quentity controlled variable computing of variate-value.Use the traditional ratio/integration (PI) of fuzzy controller replacement or ratio/integration, differential (PID) control; Connect by fieldbus between the control module of high voltage converter and the programmable logic controller (PLC) (PLC), connect by fieldbus between local monitor system touch screen (PMU) and the programmable logic controller (PLC) (PLC), by the connection between Industrial Ethernet realization programmable logic controller (PLC) (PLC) and the long distance control system, for the interference of the power section of anti-locking system to control system, the control module of high voltage converter connects by the power section of optical fiber and high voltage converter, realizes triggering control.
Control module in the high voltage converter intelligence control system, its core is digital signal processor (DSP) digital control unit, this element can produce sine pulse modulation (SPWM) ripple, after this pulse distributes through pulse distribution plate (PDB), pass to optical fiber daughter board (FBS), be input to the power section of high voltage converter then by optical fiber, realize triggering control, this pulsed frequency is adjustable, and the rise time of frequency and fall time can be set arbitrarily; Simultaneously, digital signal processor (DSP) digital control unit of the fault input of the high voltage frequency converter power part that the optical fiber daughter board collects is handled fault-signal.
The fuzzy control of adopting replaces traditional ratio/integration, differential (PID) control, and fuzzy controller is made of unitization, obfuscation control, estimation control law, ambiguity solution control, database, rule base and the controlled quentity controlled variable computing of variate-value.Be input to the fuzzy controller by simulating signal (flow or pressure) from collection in worksite, the controlled quentity controlled variable that produces is input to digital signal processor (DSP) digital control unit, according to the controlled quentity controlled variable that is input to digital signal processor (DSP) digital control unit, carry out control corresponding.
Long distance control system links by the communication module in Industrial Ethernet and the programmable logic controller (PLC) (PLC), realizes telemanagement and monitoring in real time, can realize parameter setting, operation monitoring and failure monitoring.Parameter setting: can be provided with the rise time and the fall time of frequency, can carry out the selection of open loop and closed loop control mode to system, when adopting open loop control mode, can be to the size setting of the frequency of system operation, if selection closed loop control mode, system produces controlled quentity controlled variable through fuzzy controller system is realized closed-loop control according to collecting system feedback signal.
Long-distance Control can be carried out running state monitoring, can realize the ratings of reading system from control system, can from long distance control system, read output current, output voltage and the output frequency of high voltage converter operation, simultaneously, the fault to performed operation and appearance can show with the simulation pilot lamp; Use Long-distance Control, can start, stop and system reset operation the high voltage converter system.
Long-distance Control can be carried out failure monitoring: long distance control system can be monitored in real time to the fault that occurs in the high voltage converter operational process, and can keep historical failure, is convenient to the maintenance of system.
What the local monitor system adopted is that man-machine dialog interface touch-screen (PMU) and programmable logic controller (PLC) (PLC) connect by the fieldbus bus, local monitor is to realize finishing the listed function of above-mentioned remote monitoring to parameter setting, operation monitoring and failure monitoring by touch-screen (PMU).
The invention has the advantages that: (1) uses fieldbus to connect, and has simplified circuit structure.(2) used fuzzy controller in the control module of high voltage converter, this controller has adopted the fuzzy control form in the artificial intelligence, realizes the closed-loop control to feedback signal.(3) by the connection of fieldbus, can realize the local monitor of high voltage converter, realize remote monitoring by Industrial Ethernet.(4) utilize intelligent fuzzy controller to replace traditional ratio/integration, differential (PID) control, it is intelligent that system is had more.
Description of drawings
Fig. 1 is a high voltage converter intelligence control system structured flowchart, comprising: digital signal processor (DSP) digital control unit pulse distribution plate optical fiber daughter board fuzzy controller local monitor system touch screen (PMU) long distance control system programmable logic controller (PLC) (PLC) is used for the fieldbus and the Industrial Ethernet of system communication
Fig. 2 is the structure of fuzzy controller block diagram, comprising: the rule base controlled quentity controlled variable computing of controlling database of control law ambiguity solution is estimated in the unit obfuscation control of variate-value.
Embodiment
Below in conjunction with accompanying drawing this patent is further described.
Fig. 1, Fig. 2 are a kind of embodiments of the present invention.
Control module in the high voltage converter intelligence control system, its core is digital signal processor (DSP) digital control unit, this element can produce sine pulse modulation (SPWM) ripple, after this pulse distributes through pulse distribution plate (PDB), pass to optical fiber daughter board (FBS), be input to the power section of high voltage converter then by optical fiber, realize triggering control, this pulsed frequency is adjustable, and the rise time of frequency and fall time can be set arbitrarily.Simultaneously, digital signal processor (DSP) digital control unit of the fault input of the high voltage frequency converter power part that optical fiber daughter board (FBS) collects is handled fault-signal.Be input to the fuzzy controller by simulating signal (flow or pressure) from collection in worksite, the controlled quentity controlled variable that produces is input to digital signal processor (DSP) digital control unit, according to the controlled quentity controlled variable that is input to digital signal processor (DSP) digital control unit, carry out control corresponding.
The structural drawing of fuzzy controller as shown in Figure 2, the analog quantity of collection site---pressure or flow (P﹠amp; Q) after the feedback, with the set-point (P*﹠amp of system; Q*) compare, produce error (E) and error and change (CE), because fuzzy controller needs the unit value signal, so, through after the variate-value unitization, generation unit value error signal e and unit value error variable signal ce are with the clear signal e and the ce input fuzzy set of input, carry out Fuzzy processing, will import clear signal and convert blurred signal to.To carry out the evaluation of fuzzy rule correctness afterwards, the degree of membership of input blurred signal is to be determined by the common maximum membership degree of the subordinate function of the subordinate function of fuzzy data and corresponding fuzzy set, after finishing the evaluation of carrying out the fuzzy rule correctness, Shu Chu control signal will be carried out ambiguity solution control at last, export clear controlling value du, by the controlled quentity controlled variable computing, du converts actual signal DU to this element signal, at last by computing, obtain the desired clear value U of high voltage converter control module, so just according to the signal of scene feedback, by a series of operation and computings such as obfuscation, exported the desired clear value U of high voltage converter control module to the input clear signal.
Long distance control system links by the communication module in Industrial Ethernet and the programmable logic controller (PLC) (PLC), realizes telemanagement and monitoring in real time, can realize parameter setting, operation monitoring and failure monitoring.Parameter setting: can be provided with the rise time and the fall time of frequency, can carry out the selection of open loop and closed loop control mode to system, when adopting open loop control mode, can be to the size setting of the frequency of system operation, if selection closed loop control mode, system produces controlled quentity controlled variable through fuzzy controller system is realized closed-loop control according to collecting system feedback signal.Operation monitoring: the ratings that can realize reading system from control system, can read output current, output voltage and the output frequency of high voltage converter operation from tele-control system, simultaneously, the fault to performed operation and appearance can show with the simulation pilot lamp.Simultaneously, use Long-distance Control, can start, stop and system reset operation the high voltage converter system.Failure monitoring: tele-control system can be monitored in real time to the fault that occurs in the high voltage converter operational process, and can keep historical failure, is convenient to the maintenance of system.
What the local monitor system adopted is that man-machine dialog interface touch-screen (PMU) and programmable logic controller (PLC) (PLC) connect by the fieldbus bus, local monitor is to realize finishing the listed function of above-mentioned remote monitoring to parameter setting, operation monitoring and failure monitoring by touch-screen (PMU).
Claims (7)
1, a kind of high voltage converter control system with network savvy and Based Intelligent Control, it is characterized in that: this system comprises: the control module of high voltage converter, local monitor system touch are shielded PMU, long distance control system, programmable logic controller (PLC) and are used for the fieldbus of system communication; Wherein, the control module of high voltage converter comprises: digital signal processor digital control unit, pulse distribution plate, optical fiber daughter board and fuzzy controller; Fuzzy controller is by unitization, obfuscation control, estimation control law, ambiguity solution control, database, rule base and the controlled quentity controlled variable computing of variate-value; Use the traditional ratio/integration of fuzzy controller replacement or ratio/integration, differential control; Connect by fieldbus between the control module of high voltage converter and the programmable logic controller (PLC), connect by fieldbus between local monitor system touch screen and the programmable logic controller (PLC), by the connection between Industrial Ethernet realization programmable logic controller (PLC) and the long distance control system, for the interference of the power section of anti-locking system to control system, the control module of high voltage converter connects by the power section of optical fiber and high voltage converter, realizes triggering control.
2, according to the described system of claim 1, it is characterized in that: the digital signal processor digital control unit can produce the sine pulse modulating wave, after this pulse distributes through the pulse distribution plate, pass to the optical fiber daughter board, be input to the power section of high voltage converter then by optical fiber, realize to trigger control, this pulsed frequency is adjustable, and the rise time of frequency and fall time can be set arbitrarily; Simultaneously, the digital signal processor digital control unit of the fault input of the high voltage frequency converter power part that the optical fiber daughter board collects is handled fault-signal.
3, according to the described system of claim 1, it is characterized in that: fuzzy controller is made of unitization, obfuscation control, estimation control law, ambiguity solution control, database, rule base and the controlled quentity controlled variable computing of variate-value; Be input to the fuzzy controller by simulating signal flow or pressure from collection in worksite, the controlled quentity controlled variable of generation is input to the digital signal processor digital control unit, according to the controlled quentity controlled variable that is input to the digital signal processor digital control unit, carries out control corresponding.
4, according to the described system of claim 1, it is characterized in that: long distance control system links by the communication module in Industrial Ethernet and the programmable logic controller (PLC), realize telemanagement and monitoring in real time, can realize parameter setting, operation monitoring and failure monitoring; Parameter setting: can be provided with the rise time and the fall time of frequency, can carry out the selection of open loop and closed loop control mode to system, when adopting open loop control mode, can be to the size setting of the frequency of system operation, if selection closed loop control mode, system produces controlled quentity controlled variable through fuzzy controller system is realized closed-loop control according to collecting system feedback signal.
5, according to the described system of claim 1, it is characterized in that: Long-distance Control can be carried out running state monitoring, can realize the ratings of reading system from control system, can from long distance control system, read output current, output voltage and the output frequency of high voltage converter operation, simultaneously, the fault to performed operation and appearance can show with the simulation pilot lamp; Use Long-distance Control, can start, stop and system reset operation the high voltage converter system.
6, according to the described system of claim 1, it is characterized in that: Long-distance Control can be carried out failure monitoring: long distance control system can be monitored in real time to the fault that occurs in the high voltage converter operational process, and can keep historical failure, be convenient to the maintenance of system.
7, according to the described system of claim 1, it is characterized in that: what the local monitor system adopted is that man-machine dialog interface touch-screen and programmable logic controller (PLC) connect by the fieldbus bus, local monitor is to realize finishing the listed function of above-mentioned remote monitoring to parameter setting, operation monitoring and failure monitoring by touch-screen.
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| CN 200510105776 CN1763668A (en) | 2005-09-29 | 2005-09-29 | High-voltage frequency converter control system with networking function and intelligent control |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101977122A (en) * | 2006-12-01 | 2011-02-16 | 富士通株式会社 | Method and system for managing operation of network-connected device and agent for managing operation of device |
| CN102323806A (en) * | 2011-07-08 | 2012-01-18 | 中冶南方（武汉）自动化有限公司 | Inverter monitoring platform and monitoring method thereof |
| CN102520702A (en) * | 2011-12-29 | 2012-06-27 | 深圳达实智能股份有限公司 | Rail transit field bus system and use method for same |
| CN102722135A (en) * | 2012-06-20 | 2012-10-10 | 北京金自能源科技发展有限公司 | High-voltage inverter remote-monitoring system based on gateway technology and realization method thereof |
| CN102780431A (en) * | 2012-08-14 | 2012-11-14 | 天津伟力盛世节能科技有限公司 | Frequency conversion speed regulation remote centralized control circuit for high-voltage synchronous motor |
| CN104914333A (en) * | 2015-05-28 | 2015-09-16 | 株洲变流技术国家工程研究中心有限公司 | Remote monitoring system and method of high-voltage frequency converter |
-
2005
- 2005-09-29 CN CN 200510105776 patent/CN1763668A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101977122A (en) * | 2006-12-01 | 2011-02-16 | 富士通株式会社 | Method and system for managing operation of network-connected device and agent for managing operation of device |
| CN102323806A (en) * | 2011-07-08 | 2012-01-18 | 中冶南方（武汉）自动化有限公司 | Inverter monitoring platform and monitoring method thereof |
| CN102323806B (en) * | 2011-07-08 | 2012-12-19 | 中冶南方（武汉）自动化有限公司 | Inverter monitoring platform and monitoring method thereof |
| CN102520702A (en) * | 2011-12-29 | 2012-06-27 | 深圳达实智能股份有限公司 | Rail transit field bus system and use method for same |
| CN102722135A (en) * | 2012-06-20 | 2012-10-10 | 北京金自能源科技发展有限公司 | High-voltage inverter remote-monitoring system based on gateway technology and realization method thereof |
| CN102722135B (en) * | 2012-06-20 | 2014-06-18 | 北京金自能源科技发展有限公司 | High-voltage inverter remote-monitoring system based on gateway technology and realization method thereof |
| CN102780431A (en) * | 2012-08-14 | 2012-11-14 | 天津伟力盛世节能科技有限公司 | Frequency conversion speed regulation remote centralized control circuit for high-voltage synchronous motor |
| CN104914333A (en) * | 2015-05-28 | 2015-09-16 | 株洲变流技术国家工程研究中心有限公司 | Remote monitoring system and method of high-voltage frequency converter |
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