CN201037905Y - Minitype steam turbine digital electro-hydraulic controller - Google Patents
Minitype steam turbine digital electro-hydraulic controller Download PDFInfo
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- CN201037905Y CN201037905Y CNU2007200794590U CN200720079459U CN201037905Y CN 201037905 Y CN201037905 Y CN 201037905Y CN U2007200794590 U CNU2007200794590 U CN U2007200794590U CN 200720079459 U CN200720079459 U CN 200720079459U CN 201037905 Y CN201037905 Y CN 201037905Y
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Abstract
The utility model provides a small steam turbine digital electrohydraulic controller applied in rotating speed and output control of steam turbine. Hardware equipments of the controller are arranged in a chassis in a laminating way, logic function is made into procedural through a software, namely, a CPU module with PC 104 standard, ISA bus and a plurality of interfaces is adopted as the core and matches with a liquid crystal screen and an operation interface with a thin film button, an integrated data collecting module, a power module and a cooling fan, the liquid crystal adopts a plurality of pictures to display all parameter about equipment operation in Chinese, the CPU module adopts a 300 MHz embedded processor, a system chip adopts CS5530A, and the chip group can be directly connected with a CRT monitor or a 18 bitmap TFT-LCD monitor. The utility model has the advantages of complete functions and strong applicability, etc. the utility model can be used for control of a generating steam turbine, a blower steam turbine and a water-feeding pump steam turbine.
Description
Technical field
The utility model relates to the adjustment control apparatus of a kind of energy, chemical industry steam turbine.Be mainly used in rotational speed regulation, the output quantity control of steam turbine, for example: electric power (power generation turbine), go into/export blast (blower fan steam turbine), outlet discharge (feed pump turbine).
Background technology
The small steam turbine controller of the domestic use of China mostly is U.S. woodward company product, and this product man-machine interface is that literary composition all over Britain shows, do not meet domestic operating personnel's custom, and price is expensive, the maintenance, repair difficulty.At present, domestic still do not have a like product.
Summary of the invention
The purpose of this utility model is intended to fill the domestic gaps, and provides a kind of multiple functional, the small steam turbine digital electro-hydraulic controller that applicability is strong.
The purpose of this utility model is to realize by following technical solution: comprise that hardware device adopts overlapped way to be installed in the cabinet, logic function by software development in program, promptly adopt the PC104 standard, CPU module with isa bus and a plurality of interfaces is a core, be matched in the operation interface of liquid crystal display and film key, the integrated data acquisition module, power module, liquid crystal display adopts a plurality of pictures all parameters with Chinese display device operation, analog quantity, the rotating speed fault diagnosis, the controller temperature detection, external signals such as analog quantity self check enter analog to digital converter through multi-way switch and amplification able to programme, analog to digital converter is converted to digital signal with analog signals, after isolating, photoisolator delivers to the isa bus of CPLD inside, external switch amount signal inserts terminal board, on terminal board, isolate, directly deliver to the isa bus of FPGA inside after the isolation.
Described CPU module adopts the 300MHz flush bonding processor, and System on Chip/SoC adopts CS5530A, and this chipset can directly connect CRT monitor or 18 TFT-LCD displays.
Described CPU module has special-purpose LCD interface, directly be connected and realize that picture shows with liquid crystal display, also have CRT interface RS485 and can be connected with external unit with RS232 communication port, USB interface, the CPU module is by isa bus and the integrated data acquisition module swap data with analog quantity input, analog quantity output, switching value input, switching value output, rotating speed input, power monitoring and Watchdog function.
Described cabinet is to be screwed on panel, the fan filter screen frame is installed on the casing with screw, fan is directly installed on the fan filter screen frame, the integrated data acquisition module is rack-mount by important actor, power panel, CPU module are installed on the integrated data acquisition module by important actor, and the connection terminal printed board is installed on the integrated data acquisition module by the terminal board mounting bracket.
Described system program is at the back parameter initialization in advance that powers on, allow operation adjusting program then, parameter modification and keyboard operation have been judged whether, after carrying out respective handling, carry out the liquid crystal display demonstration again and refresh, the adjusting program is by the collection analysis of input signal being diagnosed whether fault is arranged, the judgement of various states being selected the control mode of variable valve, control output finally is reflected to analog quantity, switching value output channel, carries out the Data Update of picture at last.
Described rotating speed input signal carries out fault diagnosis in inside, signal damping carries out tachometric survey after FPGA is delivered in the photoelectricity isolation.
Described power monitoring function is mainly carried out input by photoisolator and resistance, delivers to FPGA after the detection and carries out signals collecting.
The utlity model has following advantage: small and comprehensive, " little " is mainly reflected in, and volume is little, the upright dish of suitable small turbine installation requirement, and power consumption is little, and I/O counts few, is principle to satisfy steam turbine control requirement; It is complete that " entirely " is mainly reflected in control function, can open various control function as required, optional function is identical with large-size steam turbine digital electro-hydraulic controller, as TPC function, CCS function, quick-release burden functional, distant place control function, automatic paralleling function, primary frequency modulation function etc.; External interface is complete, comprises display interface, serial communication interface, USB interface, I/O port; Self-diagnostic function is complete, and perfect diagnostic function guarantees the controller reliability service; Guiding type operating, popup menu, meet compatriots' operating habit; The control accuracy height satisfies the requirement of domestic electrical network to primary frequency modulation, and multiple functional in a word, applicability is strong.
Description of drawings
Fig. 1 is a cabinet outside drawing of the present utility model.
Fig. 2 is the cabinet inside structural drawing.
Fig. 3 is a systematic schematic diagram of the present utility model.
Fig. 4 is power fail diagnosis principle figure of the present utility model.
Fig. 5 is a main program flow chart of the present utility model.
Fig. 6 is an adjusting program flow diagram of the present utility model.
Embodiment
With reference to Fig. 1, Fig. 2, cabinet comprises panel 1, casing 2, fan filter screen frame 3, back shroud 4, connection terminal printed board 5, fan 6, power panel 7, CPU module 8, liquid crystal display 9, mounting bracket 10, integrated data acquisition module 11, terminal board mounting bracket 12, RS232 interface 13.Installation is based on panel 1.Casing 2 and mounting bracket 10 are screwed on panel 1, fan filter screen frame 3 adopts screw to be installed on the casing 2, fan 6 is directly installed on the fan filter screen frame 3, integrated data acquisition module 11 is installed on the mounting bracket 10 by important actor, power panel 7, CPU module 8 are installed on the integrated data acquisition module 11 by important actor, and connection terminal printed board 5 is installed on the integrated data acquisition module 11 by terminal board mounting bracket 12.Liquid crystal display 9 adopts a plurality of pictures, with all parameters of Chinese mode display device operation: operation screen is used for that control operation, major parameter show, main state indication; The analog quantity picture is used to monitor each I/O analog signals value; Switching value status surveillance picture, be used to indicate each open into/leave channel status; The operation curve picture is used for the operation curve of major parameter in the monitor elapsed 80s; The warning picture is used to monitor various alarm condition, stopped status and shuts down head go out reason; Parameter picture and configuration picture adopt a plurality of pictures to monitor all pre-set parameters and configuration setting.Also configurable upper monitoring computing machine is realized graphical operation and is reached the service data record in 1 year.
With reference to Fig. 3, the utility model is made up of CPU module, integrated data acquisition module, terminal board, liquid crystal display (as adopting 8.4 " liquid crystal display), guidance panel button.The CPU module has special-purpose LCDs interface, directly is connected with liquid crystal display to realize that picture shows.The CPU module has CRT interface, RS485 communication port, RS232 communication port, USB communication port and can be connected with external unit.The CPU module is by isa bus and integrated data acquisition module swap data.The integrated data acquisition module is integrated analog quantity input, analog quantity output, switching value input, switching value output, rotating speed input, power monitoring and Watchdog function.External analog amount signal, rotating speed fault diagnosis signal, controller temperature detection signal, analog quantity self-test signal enter analog to digital converter through multi-way switch and amplification able to programme, analog to digital converter is converted to digital signal with analog signals, delivers to the isa bus of CPLD inside after photoisolator is isolated.Analog quantity output receives digital quantity signal from the isa bus of CPLD inside, delivers to digital to analog converter after photoisolator is isolated, and digital to analog converter is converted to the analog quantity voltage signal with digital quantity signal, again through voltage/current conversion output.External switch amount signal is isolated at terminal board after inserting terminal board, directly delivers to the isa bus of FPGA inside after the isolation.The switching value output signal is directly delivered to terminal board from the isa bus of CPLD inside, isolates the rear drive output relay through photoelectricity on terminal board, and relay tip is externally exported in the dry contact mode.The rotating speed input interface directly receives outside reluctance type signals of rotational speed sensor, this signal is sent into tachometric survey loop, speed probe fault diagnosis loop respectively, this signal carries out signal shaping in inside, tachometric survey loop, the sine wave signal of input is converted to pulse signal, this pulse signal is delivered to the tachometric survey logic of FPGA inside after photoelectricity is isolated, be that the digital quantity signal of speed revolution value is delivered to isa bus through the tachometric survey logical transition.Speed probe fault diagnosis loop applies constant DC stream to external speed probe, this electric current forms certain DC voltage on speed probe, the alternating voltage stack of this voltage and tach signal, as the rotating speed input signal, separate its DC component, AC compounent in speed probe fault diagnosis loop, deliver to the analog quantity input circuit after the separation respectively, the CPU module is gathered this analog signals and is judged whether fault of speed probe.
The CPU module adopts the 300MHz of AMD flush bonding processor, and system chipset adopts the CS5530A of AND, and this chipset directly connects CRT monitor or 18 TFT-LCD displays.This CPU module has an EIDE interface, a FDD interface, a mouse-keyboard interface, a LPT interface, a RS232 interface, a RS232/422/485 interface, two USB interface.
Fault diagnosis functions of the present utility model are united realization by hardware and software.Analog quantity input/output fault diagnosis: adopt system hardware Loopback mode, analog signals by a variation of software control analog quantity output unit output, this signal is directly delivered to the analog signals acquisition circuit by the integrated data acquisition module, software compares signal and the output signal that collects, if two signals equate, think that the analog quantity I/O is normal, otherwise fault; Switching value input fault diagnosis: the integrated data acquisition module applies a fixed signal to a switching value input channel wherein, and software is gathered this passage and judged whether signal is correct, if correctly then think that the switching value input is normal, otherwise fault; Power supply diagnosis: adopt photoisolator that each road power supply is monitored, and deliver to the switching value input channel, the software detection signal is to represent that power supply was normal at 1 o'clock, otherwise fault; The tachometric survey fault diagnosis: the integrated data acquisition module applies a steady current to external reluctance type speed probe, simultaneously software detects by the signal of analog quantity input circuit to speed probe, judges the whether fault of loop that tests the speed by the AC and DC component of judging signal.
All logic functions of the present utility model are realized by software, comprising picture demonstration, button operation, pid control algorithm, input/output interface, have also realized function configuration, I/O configuration by software.The function configuration: all functions that the utility model may be used all by software development in program, when needs use in the function configuration parameters with this function setting for enabling, be set to when not required forbid; The I/O configuration: all analog quantity I/O of the present utility model, switching value input/output signal are by the mode of filling in a form selector channel number arbitrarily; behind a channel failure, can this signal be set to untapped passage, realize channel standby in stopped status.Fault diagnosis functions, I/O configuration function can make things convenient for the maintenance after the equipment failure, reduce failure recovery time.The function configuration makes the user can be according to the needs selection function of self.
With reference to Fig. 4, mainly form the power fail diagnostic loop by photoisolator and resistance.The 24VA power supply is through resistance current limliting rear drive photoisolator, and the output signal of photoisolator is imported to return to gather by numeral.The 24VA power supply just often, the photoisolator conducting is output as low level, judges that power supply is normal; During the 24VA power fail, photoisolator turn-offs, and is output as high level, judges power fail (precondition: the 5VD power supply is the digital collection power supply, must be normal).Need be with a plurality of digital quantity input circuits when the power supply of a plurality of electric pressures is diagnosed.
With reference to Fig. 5, advanced line parameter initialization after system powers on, allow operation adjusting program then, (regulating program timing circular flow) judged whether parameter modification and keyboard operation, if having, then carrying out parameter modification and keyboard handles, carry out the liquid crystal display demonstration then and refresh, otherwise, directly carry out the liquid crystal display demonstration and refresh.
With reference to Fig. 6, the adjusting program is whether to diagnose fault by the collection of tach signal, analog quantity input signal, switching value input signal; If have, then carry out fault alarm, carry out keyboard scan and button then and handle, otherwise, directly carry out keyboard scan and button and handle; Judge jeopardizing the equipment safety system fault after finishing dealing with; if have; then control output, picture data renewal are handled, are shut down in shutdown; otherwise by the judgement of static state experiment, control automatically, load control etc. being selected the control mode of variable valve; control output finally is reflected to analog quantity, switching value output channel, carries out the Data Update of picture at last.
Claims (4)
1. small steam turbine digital electro-hydraulic controller, comprise that hardware device adopts overlapped way to be installed in the cabinet, logic function by software development in program, it is characterized in that: employing PC104 standard, CPU module with isa bus and a plurality of interfaces is a core, be matched in the operation interface of liquid crystal display and film key, the integrated data acquisition module, power module, liquid crystal display adopts a plurality of pictures all parameters with Chinese display device operation, analog quantity, the rotating speed fault diagnosis, the controller temperature detection, external signals such as analog quantity self check enter analog to digital converter through multi-way switch and amplification able to programme, analog to digital converter is converted to digital signal with analog signals, after isolating, photoisolator delivers to the isa bus of CPLD inside, external switch amount signal inserts terminal board, on terminal board, isolate, directly deliver to the isa bus of FPGA inside after the isolation.
2. small steam turbine digital electro-hydraulic controller as claimed in claim 1 is characterized in that: the CPU module adopts the 300MHz flush bonding processor, and System on Chip/SoC adopts CS5530A, and this chipset can directly connect CRT monitor or 18 TFT-LCD displays.
3. small steam turbine digital electro-hydraulic controller as claimed in claim 1, it is characterized in that: the CPU module has special-purpose LCD interface, directly be connected and realize that picture shows with liquid crystal display, also have CRT interface, R5485 and RS232 communication port, the USB communication port can be connected with external unit, the CPU module is by isa bus and integrated data acquisition module swap data with analog quantity input, analog quantity output, switching value input, switching value output, rotating speed input, power monitoring and following function.
4. small steam turbine digital electro-hydraulic controller as claimed in claim 1, it is characterized in that: cabinet is to be screwed on panel, the fan filter screen frame is installed on the casing with screw, fan is directly installed on the fan filter screen frame, the integrated data acquisition module is rack-mount by important actor, power panel, CPU module are installed on the integrated data acquisition module by important actor, and the connection terminal printed board is installed on the integrated data acquisition module by the terminal board mounting bracket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200794590U CN201037905Y (en) | 2007-04-30 | 2007-04-30 | Minitype steam turbine digital electro-hydraulic controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200794590U CN201037905Y (en) | 2007-04-30 | 2007-04-30 | Minitype steam turbine digital electro-hydraulic controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201037905Y true CN201037905Y (en) | 2008-03-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200794590U Expired - Fee Related CN201037905Y (en) | 2007-04-30 | 2007-04-30 | Minitype steam turbine digital electro-hydraulic controller |
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| CN (1) | CN201037905Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101799671A (en) * | 2010-03-17 | 2010-08-11 | 德阳瑞能电力科技有限公司 | Regulation and control device of industrial turbine |
| CN101846998A (en) * | 2010-04-13 | 2010-09-29 | 德阳瑞能电力科技有限公司 | Redundant digital electric-hydraulic control system for turbine |
| CN101776000B (en) * | 2009-12-28 | 2012-07-25 | 国电南京自动化股份有限公司 | Complex programmable logic array-based turbine emergency protection logic configuration method |
| CN103279056A (en) * | 2013-04-02 | 2013-09-04 | 瑞安市工泰电器有限公司 | Electric power intelligent measuring and control device |
| CN106948882B (en) * | 2017-04-11 | 2018-06-19 | 四川东方电气自动控制工程有限公司 | A kind of steam turbine based on FPGA exploitations tests the speed and overspeed protection fastener |
| CN112502799A (en) * | 2020-11-27 | 2021-03-16 | 广西电网有限责任公司电力科学研究院 | Optimization system for controlling steam distribution mode of generator set |
-
2007
- 2007-04-30 CN CNU2007200794590U patent/CN201037905Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101776000B (en) * | 2009-12-28 | 2012-07-25 | 国电南京自动化股份有限公司 | Complex programmable logic array-based turbine emergency protection logic configuration method |
| CN101799671A (en) * | 2010-03-17 | 2010-08-11 | 德阳瑞能电力科技有限公司 | Regulation and control device of industrial turbine |
| CN101846998A (en) * | 2010-04-13 | 2010-09-29 | 德阳瑞能电力科技有限公司 | Redundant digital electric-hydraulic control system for turbine |
| CN101846998B (en) * | 2010-04-13 | 2011-12-28 | 德阳瑞能电力科技有限公司 | Redundant digital electric-hydraulic control system for turbine |
| CN103279056A (en) * | 2013-04-02 | 2013-09-04 | 瑞安市工泰电器有限公司 | Electric power intelligent measuring and control device |
| CN103279056B (en) * | 2013-04-02 | 2016-07-13 | 瑞安市工泰电器有限公司 | Electric intelligent measure and control device |
| CN106948882B (en) * | 2017-04-11 | 2018-06-19 | 四川东方电气自动控制工程有限公司 | A kind of steam turbine based on FPGA exploitations tests the speed and overspeed protection fastener |
| CN112502799A (en) * | 2020-11-27 | 2021-03-16 | 广西电网有限责任公司电力科学研究院 | Optimization system for controlling steam distribution mode of generator set |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080319 Termination date: 20130430 |