CN203201598U - Turbine speed adjusting control device - Google Patents
Turbine speed adjusting control device Download PDFInfo
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- CN203201598U CN203201598U CN 201320124753 CN201320124753U CN203201598U CN 203201598 U CN203201598 U CN 203201598U CN 201320124753 CN201320124753 CN 201320124753 CN 201320124753 U CN201320124753 U CN 201320124753U CN 203201598 U CN203201598 U CN 203201598U
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- programmable logic
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Abstract
The utility model provides a turbine speed adjusting control device which comprises a main processor, an I/O processor and a complex programmable logic device. The main processor comprises a logical operation module, an interactive interface module connected with a displayer and a keyboard and a network and COM port. The I/O processor comprises a data collecting module, a rotating speed calculating module, a channel diagnosing module and an analog data input and output circuit port. The complex programmable logic device comprises a pulse signal conditioning module, a security module, a protocol logic conversion module, a digital quantity input filtering/digital quantity output latch module, a collecting conditioning module and a digital quantity input and output circuit port. The turbine speed adjusting control device can be monitored and diagnosed and the speed can be adjusted through a local control mode and a remote control mode and an outage logic circuit is integrated so that the safety can be improved. The turbine speed adjusting control device is suitable for three kinds of pulse signals and can measure three channels of signals simultaneously. According to the double-processor directly connecting structure, direct high-speed data exchange between the processors is supported so that the advantages of the turbine speed adjusting control device can be achieved.
Description
Technical field
The utility model relates to equipment control technique field, particularly a kind of steam turbine speed control control gear.
Background technique
CPU(Central Processing Unit), central processing unit (CPU) is arithmetic core and the control core of computer.
DSP(Digital Signal Processor) be a kind of microprocessor that is exclusively used in the digital signal high speed processing, HOST refers to main frame, DMA(Direct Memory Access) refer to direct memory access.
CPLD(Complex Programmable Logic Device), CPLD is a kind of digital integrated electronic circuit of as required and voluntarily constitutive logic function.
VFD(Vacuum Fluorescent Display) be a kind of vacuum fluorescent display screen.
I/O(Input/Output), refer to input output.
Steam turbine (Steam Turbine) can be used as the prime mover that drives heavy mechanical equipment, perhaps as generator so that electric power to be provided.The steam turbine speed control controller is to cooperate that steam turbine uses, as to be used for regulating turbine speed control gear.
Yet relevant steam turbine speed control control gear only has single speed-regulating function, and have that ability to communicate is not enough, local human-computer interaction function does not possess or the disagreeableness defective in interface, in the situation that controller self lost efficacy, also lack the insurance mechanism that output can be controlled at safe condition.
The model utility content
For existing steam turbine speed control control gear only have speed-regulating function, communication is not enough with interaction capabilities, lack that the function that insurance mechanism causes is limited, operation is inconvenient, defects and the problem of poor stability, the purpose of this utility model provides and a kind ofly supports various control pattern and signal type, has monitoring and speed-regulating function, the stronger steam turbine speed control control gear of Security.
For achieving the above object, the utility model provides following technological scheme: a kind of steam turbine speed control control gear, it is characterized in that, and comprising:
Primary processor, it is the subtense angle that comprises the CPU processor of interactive interface module, logical operation module, described interactive interface module is circumscribed with display device, the keyboard for the local interaction configuration, and described primary processor also comprises for the network port of remote interaction and parameter configuration, COM;
The I/O processor, it is to comprise that the core calculations unit of data acquisition module, rotating speed computing module, passage diagnostic module is the subtense angle of dsp processor, described I/O processor also comprises the circuit interface for the analog data input output;
Complicated programmable logic device, it is the subtense angle that comprises the CPLD integrated device of pulse signal conditioning module, security module, protocol logic modular converter, digital quantity input filter/digital output latch module, described complicated programmable logic device also comprises the collection modulation module for return pulse signal, it is connected with the pulse signal conditioning module, and the circuit interface that is used for the digital quantity input output, it is connected with digital quantity input filter/digital output latch module;
Described complicated programmable logic device is connected with primary processor, I/O processor respectively by cpu address/control bus, DSP HOST dma bus, described primary processor also directly is connected with the HOST DMA data/address bus of I/O processor by cpu data bus, realize that primary processor is to the data access of I/O processor, the control logic conversion of its access protocal is by the complicated programmable logic device realization, and described I/O processor is also by the access of local bus realization to the complicated programmable logic device internal register.
Preferred as technique scheme, described primary processor is furnished with dual serial PORT COM, a network port.
Preferred as technique scheme, described display device is the VFD display device, and described keyboard is membrane keyboard, and described VFD display device, membrane keyboard form can be for the control panel of local operation.
Preferred as technique scheme, described complicated programmable logic device can gather, measure three tunnel pulse tach signals simultaneously.
Preferred as technique scheme, described pulse signal conditioning module contains the pulse signal conditioning circuit, can adapt to the tachometric survey of magnetic resistance, active, eddy current probe signal.
Preferred as technique scheme, described security module contains can monitor the control logic output function, cut off the output circuit power supply automatically when the system failure house dog logical circuit.
Preferred as technique scheme, described security module and primary processor, I/O processor directly are connected by bus independently.
The steam turbine speed control control gear that the utility model provides is supported to carry out parameter configuration and operational diagnostics with the various control pattern such as local, long-range, interactivity is strengthened, and possessed the several functions such as monitoring, diagnosis, speed governing; This device has also strengthened its ability to communicate by configuration network and serial port; Simultaneously, this device has also improved the equipment Operation safety by the integrated security logical circuit; In addition, this device also is applicable to three kinds of dissimilar pulse signals, and can measure simultaneously three road pulse signals, has stronger adaptability.At last, the dual processor direct coupled structure that this device adopts can be realized the immediate data exchange between the processor, and this is the hardware foundation of realizing above-mentioned every beneficial effect.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, the below will do simple the introduction to the accompanying drawing of required use in embodiment or the description of the Prior Art, apparently, accompanying drawing in the following describes only is embodiments more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the structural representation of the utility model embodiment's steam turbine speed control control gear.
Fig. 2 is the logical schematic that tests the speed of the utility model embodiment's steam turbine speed control control gear.
Fig. 3 is the pulse signal conditioning circuit schematic diagram of the utility model embodiment's steam turbine speed control control gear.
Fig. 4 is the house dog logical schematic of the utility model embodiment's steam turbine speed control control gear.
Embodiment
Below in conjunction with accompanying drawing of the present utility model, the technical solution of the utility model is carried out clear, complete description, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiments.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment who obtains under the creative work prerequisite, all belong to the scope of the utility model protection.
In the steam turbine speed control control gear that the utility model embodiment provides, the processor core of primary processor is the minimum systematic module of Intel x86 compatibility, and model is VDX-DIP-ISAD; The processor core of I/O processor is the ADI dsp processor, and model is ADSP-BF527; The logical device model of complicated programmable logic device is EPM570T144.
As shown in Figure 1, a kind of steam turbine speed control control gear that the utility model embodiment provides, comprise: primary processor 1, it is the subtense angle that comprises the CPU processor of interactive interface module 11, logical operation module 12, described interactive interface module 11 is circumscribed with display device 13, keyboard 14, and described primary processor 1 also comprises the network port 15, COM 16; I/O processor 2, it is to comprise that the core calculations unit of data acquisition module 21, rotating speed computing module 22, passage diagnostic module 23 is the subtense angle of dsp processor, and described I/O processor 2 also comprises for the signal conditioning circuit of analog data input output and relevant interface 24; Complicated programmable logic device 3, it is the subtense angle that comprises the CPLD integrated device of pulse measure module 31, security module 32, protocol logic modular converter 33, digital quantity input filter/digital output latch module 36, described complicated programmable logic device 3 also comprises the collection modulation module 34 for return pulse signal, and it is connected with pulse measure module 31; Described complicated programmable logic device 3 also comprises for the signal conditioning circuit of digital quantity input output and relevant interface 35, and it is connected with digital quantity input filter/digital output latch module 36; Described complicated programmable logic device 3 is by cpu address/control bus 1001, DSP HOST DMA control bus 1002 respectively with primary processor 1, I/O processor 2 connects, described primary processor 1 also directly is connected with the HOST DMA data/address bus of I/O processor 2 by cpu data bus 1003, realize the data access of 1 pair of I/O processor 2 of primary processor, the control logic conversion of its access protocal is finished by complicated programmable logic device 3, and described I/O processor 2 is also by the access of local data/address/control bus 1004 realizations to complicated programmable logic device 3 internal registers.
Primary processor is responsible for the control logic computing, and the external interaction process that comprises the functions such as button indication, picture disply, telecommunication; The I/O processor is responsible for the inputoutput data collection, rotating speed calculates and the passage diagnosis; Complicated programmable logic device is responsible for pulse signal acquisition, access logic conversion and security mechanism is provided.
As shown in Figure 1, described primary processor 1 is furnished with dual serial PORT COM 16, a network port 15.
As shown in Figure 1, dotted arrow 2001 expression analog data input output, dotted arrow 2002 expression pulse signal inputs, dotted arrow 2003 representative digit amount input output.
In the steam turbine speed control control gear that the utility model embodiment provides, described display device 13 is VFD display devices, and described keyboard 14 is membrane keyboards, and described VFD display device, membrane keyboard form can be for the control panel of local operation.Described complicated programmable logic device 3 can gather, measure three tunnel pulse tach signals simultaneously.Described pulse signal conditioning module 31 contains the pulse signal conditioning circuit, can adapt to the tachometric survey of magnetic resistance, active, eddy current probe signal.Described security module 32 contains the house dog logical circuit as security mechanism.
The realization sketch of the logic that tests the speed as shown in Figure 2.Adopt and survey the time width connection measurement that Zhou Yuanli realizes each pulse interval, 16 free counters with synchronous zero clearing control end of its inner employing are counted calibration pulse, the rising edge of each velocity pulse generates " dpulse " signal, make this counter O reset and begin counting, generate simultaneously " pulsechk " signal, with last time count value be latched in the 16 bit data latch, read (PCOUNT), juxtaposition pulse event sign (PEVENT) for the outside; If this counter overflow before the next pulse edge, juxtaposition is overflowed event flag (TEVENT), the I/O processor is with interrupt mode response PEVENT and TEVENT sign, and by CLEAR_TEVETN end and these two signs of CLEAR_PEVENT end removing, and in time read count value PCOUNT, be saved in the I/O processor DSP inner annular buffer area.When primary processor need to read the velocity amplitude of a certain passage, I/O processor DSP calculated the tachometer value of this current passage according to the up-to-date pulse-width data in the buffer circle of this passage, and is transferred to primary processor.
The schematic diagram of pulse signal conditioning circuit as shown in Figure 3.Wherein primary signal is entered by " IN " end, through detection, active power filtering, photoelectricity isolation, integer circuit, by the output of " OUT " end, is converted to square signal, sends into the pulse width measurement circuit of complicated programmable logic device.
The realization sketch of house dog logic as shown in Figure 4.This logic is by the applied logic program start, and resetted by applied logic.When application program can not normally be carried out and cause this logic to reset, the overflowing action and will cut off all output circuit power supplys of this logic, wherein: the master reset signal that " MReset " exports for resetting from primary processor is through inner counter low effective impulse signal backward, during low Actual level, with enable register, counter O reset, output register sets to 0, because the enable register state is 0, counter stops simultaneously." MWDTEN " is low effective impulse, during low Actual level, and zero clearing counter and set output register; By the low edge that uprises, make enable register set at it, thereby make counter begin counting; Simultaneously, because enable register set shields two or gate logic, make later MWDTEN low level no longer zero clearing counter and output register." WDT_RST " can the zero clearing counter during low Actual level; If counter overflow, " Cout " uprised by low, and output register is resetted, and counter is stopped, and it is constant to keep Cout; Pass through simultaneously or logic gate blockade WDT_RST semiotic function.Wherein " CLK " is work clock.
Steam turbine speed control control gear provided by the utility model, the direct coupled structure of employing primary processor, I/O processor, complicated programmable logic device can be realized by the logical transition of complicated programmable logic device direct exchanges data between two processors.Because this bi-processor architecture is supported the executed in parallel of logical operation and data capture, therefore can improve the I/O processing rate of system.
Steam turbine speed control control gear provided by the utility model, have the several functions such as Real Time Monitoring, fault diagnosis, online adjustment, can be in friendly operation interface carry out parameter configuration and operational diagnostics with the various control pattern such as local, long-range, also strengthen ability to communicate by the network port, COM, thereby the data communication of realization controller and external equipment is with shared.This device has three tunnel tachometric survey passages, can measure simultaneously three road velocity pulse rotating speeds, and adopts special circuit to be used for the conditioning input signal, thereby effectively adapts to magnetic resistance, active and eddy current probe signal, makes the on-the-spot adaptability of system obtain to improve.
Steam turbine speed control control gear provided by the utility model, integrated house dog logical circuit in complicated programmable logic device also, this logic is used for monitoring the control logic output function, when the system failure causes control logic can't operate output, can automatically cut off output circuit and power to guarantee that system is in a safe condition.This design has improved level of integrated system and operational reliability.
The above; it only is embodiment of the present utility model; but protection domain of the present utility model is not limited to this; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; can expect easily changing or replacing, all should be encompassed within the protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of described claim.
Claims (7)
1. a steam turbine speed control control gear is characterized in that, comprising:
Primary processor, it is the subtense angle that comprises the CPU processor of interactive interface module, logical operation module, described interactive interface module is circumscribed with display device, the keyboard for the local interaction configuration, and described primary processor also comprises for the network port of remote interaction and parameter configuration, COM;
The I/O processor, it is to comprise that the core calculations unit of data acquisition module, rotating speed computing module, passage diagnostic module is the subtense angle of dsp processor, described I/O processor also comprises the circuit interface for the analog data input output;
Complicated programmable logic device, it is the subtense angle that comprises the CPLD integrated device of pulse signal conditioning module, security module, protocol logic modular converter, digital quantity input filter/digital output latch module, described complicated programmable logic device also comprises the collection modulation module for return pulse signal, it is connected with the pulse signal conditioning module, and the circuit interface that is used for the digital quantity input output, it is connected with digital quantity input filter/digital output latch module;
Described complicated programmable logic device is connected with primary processor, I/O processor respectively by cpu address/control bus, DSP HOST dma bus, described primary processor also directly is connected with the HOST DMA data/address bus of I/O processor by cpu data bus, realize that primary processor is to the data access of I/O processor, the control logic conversion of its access protocal is by the complicated programmable logic device realization, and described I/O processor is also by the access of local bus realization to the complicated programmable logic device internal register.
2. a kind of steam turbine speed control control gear according to claim 1 is characterized in that, described primary processor is furnished with dual serial PORT COM, a network port.
3. a kind of steam turbine speed control control gear according to claim 1 is characterized in that, described display device is the VFD display device, and described keyboard is membrane keyboard, and described VFD display device, membrane keyboard form can be for the control panel of local operation.
4. a kind of steam turbine speed control control gear according to claim 1 is characterized in that, described complicated programmable logic device can gather, measure three tunnel pulse tach signals simultaneously.
5. a kind of steam turbine speed control control gear according to claim 1 is characterized in that, described pulse signal conditioning module contains the pulse signal conditioning circuit, can adapt to the tachometric survey of magnetic resistance, active, eddy current probe signal.
6. a kind of steam turbine speed control control gear according to claim 1 is characterized in that, described security module contains can monitor the control logic output function, cut off the output circuit power supply automatically when the system failure house dog logical circuit.
7. a kind of steam turbine speed control control gear according to claim 1 is characterized in that, described security module and primary processor, I/O processor directly are connected by bus independently.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320124753 CN203201598U (en) | 2013-03-19 | 2013-03-19 | Turbine speed adjusting control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320124753 CN203201598U (en) | 2013-03-19 | 2013-03-19 | Turbine speed adjusting control device |
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| Publication Number | Publication Date |
|---|---|
| CN203201598U true CN203201598U (en) | 2013-09-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320124753 Expired - Lifetime CN203201598U (en) | 2013-03-19 | 2013-03-19 | Turbine speed adjusting control device |
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| CN (1) | CN203201598U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103670538A (en) * | 2013-12-10 | 2014-03-26 | 中广核工程有限公司 | Method and system for adjusting valves of half-speed turbine of nuclear power plant |
-
2013
- 2013-03-19 CN CN 201320124753 patent/CN203201598U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103670538A (en) * | 2013-12-10 | 2014-03-26 | 中广核工程有限公司 | Method and system for adjusting valves of half-speed turbine of nuclear power plant |
| CN103670538B (en) * | 2013-12-10 | 2016-04-20 | 中广核工程有限公司 | Nuclear power station half speed turbine valve adjustment method and system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 101318 No.7, anxie street, B District, Airport Industrial Zone, Shunyi District, Beijing Patentee after: Beijing kangjisen Automation Technology Co.,Ltd. Address before: 101318 Shunyi District, Beijing Patentee before: BEIJING CONSEN AUTOMATION CONTROL Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130918 |
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| CX01 | Expiry of patent term |