CN104536363A - Throttle control system logic signal conversion module - Google Patents
Throttle control system logic signal conversion module Download PDFInfo
- Publication number
- CN104536363A CN104536363A CN201410701125.7A CN201410701125A CN104536363A CN 104536363 A CN104536363 A CN 104536363A CN 201410701125 A CN201410701125 A CN 201410701125A CN 104536363 A CN104536363 A CN 104536363A
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- unit
- schmidt
- control system
- voltage
- comparing unit
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/05—Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts
- G05B19/054—Input/output
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/25—Pc structure of the system
- G05B2219/25314—Modular structure, modules
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Control Of Eletrric Generators (AREA)
- Feedback Control In General (AREA)
Abstract
Provided is a throttle control system logic signal conversion module. An input isolation unit is connected with Schmidt comparison units and a control voltage conversion unit. The Schmidt comparison unit a is connected with an output unit. The Schmidt comparison unit b is connected with a latch unit. The Schmidt comparison unit b is connected with a synchronization unit, and the synchronization unit is connected with the output unit. The Schmidt comparison unit c is connected with the latch unit, the control voltage conversion unit, and a voltage controlled oscillator unit. The latch unit is connected with an enable delay unit and the voltage controlled oscillator unit. The enable delay unit is connected with the output unit. The throttle control system logic signal conversion module of the invention adopts a single device, has high reliability and maintainability, can achieve a complete control function, and has low power consumption and high anti-interference performance. The problem concerning accurate gas turbine fuel valve control is solved, and a strong guarantee is provided for the realization of fast and accurate control of a whole gas turbine control system. The throttle control system logic signal conversion module can efficiently connect a PLC and a motor driver board to improve the corresponding speed and control precision of a motor.
Description
technical field:
The present invention is specifically related to a kind of throttle control system logical signal modular converter.
background technology:
At present, along with institute's internal-combustion gas turbine engine is applied to the field such as generating, combustion drive compressor group in recent years, higher requirement be it is also proposed to gas turbine control system.The core processing module that PLC controls as gas turbine rotary speed, its principle is the method for operation of employing order scanning, thus there is the problem that signal transacting real-time is poor.But the control accuracy of fuel valve and the operation control effects of execution speed on whole combustion engine have great impact.
summary of the invention:
The object of the invention is the weak point existed to overcome above-mentioned prior art, and a kind of throttle control system logical signal modular converter is provided, present invention employs more single device model, there is high reliability and maintainability, and complete controlling functions can be realized, there is low-power consumption, high noiseproof feature, fundamentally solve the accurate control problem of gas turbine fuel valve, control to provide strong guarantee for whole turbine control system realizes fast accurate; PLC and motor drive plate can be connected efficiently, improve corresponding speed and the control accuracy of motor.
In order to achieve the above object, the present invention adopts following technological improvement:
Throttle control system logical signal modular converter, input isolated location is connected with control voltage converting unit with Schmidt's comparing unit respectively; Schmidt's comparing unit is made up of Schmidt's comparing unit a, Schmidt's comparing unit b and Schmidt's comparing unit c, Schmidt's comparing unit a, Schmidt's comparing unit b and Schmidt's comparing unit c arranged in parallel, and is connected respectively at input isolated location; Schmidt's comparing unit a by latch unit and enable delay unit, and is connected with output unit; Schmidt's comparing unit b by lock unit, and is connected with latch unit; Schmidt's comparing unit b is connected with lock unit, and lock unit by Schmidt's comparing unit c and voltage control oscillator unit, and is connected with output unit; Schmidt's comparing unit c is connected with latch unit, control voltage converting unit, voltage control oscillator unit respectively; Latch unit is connected with voltage control oscillator unit with enable delay unit respectively; Enable delay unit is connected with output unit.
As a further improvement on the present invention, described Schmidt's comparing unit is the voltage signal exported by comparer and optical coupling isolator.
As a further improvement on the present invention, a triode is only provided with in described lock unit.
As a further improvement on the present invention, two amplifiers are set in described control voltage converting unit and build two voltage followers, and two voltage followers are the connected mode be connected in series.
The present invention, through above-mentioned technological improvement, reaches following beneficial effect:
Have employed more single device model, there is high reliability and maintainability, and complete controlling functions can be realized, there is low-power consumption, high noiseproof feature, fundamentally solve the accurate control problem of gas turbine fuel valve, control to provide strong guarantee for whole turbine control system realizes fast accurate; PLC and motor drive plate can be connected efficiently, improve corresponding speed and the control accuracy of motor.
accompanying drawing illustrates:
Fig. 1 is the structural representation of throttle control system logical signal modular converter of the present invention.
embodiment:
Below in conjunction with accompanying drawing, the present invention will be further described:
Throttle control system logical signal modular converter, is characterized in that: input isolated location 6 is connected with control voltage converting unit 8 with Schmidt's comparing unit respectively; Schmidt's comparing unit is made up of Schmidt's comparing unit a2-1, Schmidt's comparing unit b2 and Schmidt's comparing unit c2-2, Schmidt's comparing unit a2-1, Schmidt's comparing unit b2 and Schmidt's comparing unit c2-2 arranged in parallel, and be connected respectively at input isolated location 6; Schmidt's comparing unit a2-1 by latch unit 4 and enable delay unit 5, and is connected with output unit 7; Schmidt's comparing unit b2 by lock unit 3, and is connected with latch unit 4; Schmidt's comparing unit b2 is connected with lock unit 3, and lock unit 3 by Schmidt's comparing unit c2-2 and voltage control oscillator unit 1, and is connected with output unit 7; Schmidt's comparing unit c2-2 is connected with latch unit 4, control voltage converting unit 8, voltage control oscillator unit 1 respectively; Latch unit 4 is connected with voltage control oscillator unit 1 with enable delay unit 5 respectively; Enable delay unit 5 is connected with output unit 7.
Voltage control oscillator unit 1 adopts two comparers to build basic circuit and produces oscillatory circuit, by changing the output frequency of the adjustable oscillator signal of each resistance.Schmidt's comparing unit uses comparer and optical coupling isolator composition, and its output voltage has good vulnerability to jamming and larger pressure reduction.Lock unit 3 only adopts a triode to achieve the synchronous of enable signal and both impulse oscillation signals dexterously, can effectively prevent from exporting incomplete pulse signal behind the door.Latch unit 4 utilize comparer to build function that basic circuit realizes signal latch.Enable delay unit 5 utilizes the charge-discharge characteristic of electric capacity to realize delay effect to coordinate with comparer thus the delay effect achieving signal simultaneously.Input isolated location 6 adopts optical coupling isolator effectively to improve the reliability of signal, decreases disturbing mutually between signal.Output unit 7 is all unified to adopt triode to penetrate a grade output form, can ensure to export larger steady current.Control voltage converting unit 8 builds the voltage follower circuit of cascade thereof by two amplifiers, can be realized the reliable conversion of height two different voltages by input signal.
Principle of work of the present invention is:
Input 24V voltage to power supply unit by outside, the voltage transitions inputted outside by power supply unit is each working cell required voltage and is supplied to each working cell, and then ensures the normal work of unit.The input signal of throttle control module comprises: enable command signal, stop instruction signal, direction command signal, assisted instruction signal, and its output order comprises: enable command signal, behind the door pulse signal, direction command signal.Under the prerequisite that each working cell normally works, direction command input signals (voltage signal) merely through input isolated location and output unit after still in the form of voltage as direction instruction output signal.Assisted instruction signal (voltage signal) produces high-frequency impulse through input isolated location, control voltage converting unit and voltage control oscillator unit successively and draws final pulse signal behind the door as pilot process signal in order to coordinate enable input signal.Enable command input signal (voltage signal) is divided into two branch roads after input isolated location: a road carries out logical OR computing with another road through the output signal of Schmidt's comparing unit, lock unit, latch unit and enable delay unit again after Schmidt's comparing unit, and its result outputs signal as enable command in the form of voltage after output unit; Simultaneously, another road produces high-frequency pulse signal with voltage control oscillator unit again and carries out logic and operation after Schmidt's comparing unit, lock unit (realizing the synchronous of enable signal and both high-frequency impulses that voltage control oscillator unit produces), latch unit, its result after output unit in the form of voltage as pulse signal behind the door.Stop instruction signal produces a voltage signal in order to remove latch function after input block, Schmidt's comparing unit, thus removes enable command output signal, behind the door pulse signal.
The above specific embodiment; the technical matters of solution of the present invention, technical scheme and beneficial effect are further described; be understood that; the foregoing is only specific embodiments of the invention; be not limited to the present invention; within the spirit and principles in the present invention all, any amendment made, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (4)
1. throttle control system logical signal modular converter, is characterized in that: input isolated location (6) is connected with control voltage converting unit (8) with Schmidt's comparing unit respectively; Schmidt's comparing unit is by Schmidt's comparing unit a(2-1), Schmidt's comparing unit b(2) and Schmidt's comparing unit c(2-2) form, Schmidt's comparing unit a(2-1), Schmidt's comparing unit b(2) and Schmidt's comparing unit c(2-2) arranged in parallel, and respectively at input isolated location (6) be connected; Schmidt's comparing unit a(2-1) by latch unit (4) and enable delay unit (5), and be connected with output unit (7); Schmidt's comparing unit b(2) by lock unit (3), and be connected with latch unit (4); Schmidt's comparing unit b(2) be connected with lock unit (3), lock unit (3) is by Schmidt's comparing unit c(2-2) and voltage control oscillator unit (1), and be connected with output unit (7); Schmidt's comparing unit c(2-2) be connected with latch unit (4), control voltage converting unit (8), voltage control oscillator unit (1) respectively; Latch unit (4) is connected with voltage control oscillator unit (1) with enable delay unit (5) respectively; Enable delay unit (5) is connected with output unit (7).
2. throttle control system logical signal modular converter according to claim 1, is characterized in that: described Schmidt's comparing unit is the voltage signal exported by comparer and optical coupling isolator.
3. throttle control system logical signal modular converter according to claim 1, is characterized in that: be only provided with a triode in described lock unit (3).
4. throttle control system logical signal modular converter according to claim 1, is characterized in that: arrange two amplifiers in described control voltage converting unit (8) and build two voltage followers, and two voltage followers are the connected mode be connected in series.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410701125.7A CN104536363B (en) | 2014-11-28 | 2014-11-28 | Throttle control system logic signal conversion module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410701125.7A CN104536363B (en) | 2014-11-28 | 2014-11-28 | Throttle control system logic signal conversion module |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104536363A true CN104536363A (en) | 2015-04-22 |
| CN104536363B CN104536363B (en) | 2017-05-10 |
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| CN201410701125.7A Active CN104536363B (en) | 2014-11-28 | 2014-11-28 | Throttle control system logic signal conversion module |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0665134A2 (en) * | 1994-01-29 | 1995-08-02 | Shenyan Enterprise Int'l Pte Ltd. | Dimmer controller circuit for automobile headlamps |
| KR20040021437A (en) * | 2002-09-04 | 2004-03-10 | 위니아만도 주식회사 | Apparatus for controlling inner temperature of kimchi storage |
| CN201517333U (en) * | 2009-09-22 | 2010-06-30 | 李昌刚 | Automobile window anti-nip controller based on ripple current detection |
| CN201539338U (en) * | 2009-10-30 | 2010-08-04 | 南京威孚金宁有限公司 | Electronic control unit of dispensing pump |
| CN202183591U (en) * | 2011-04-19 | 2012-04-04 | 巨争号 | Voltage abnormity protecting device having a relay characteristic |
| JP2012095510A (en) * | 2010-10-29 | 2012-05-17 | Honda Motor Co Ltd | Power supply unit |
| CN102938648A (en) * | 2012-10-31 | 2013-02-20 | 上海华兴数字科技有限公司 | Analog quantity output circuit applied to controller of engineering machinery |
| CN204241928U (en) * | 2014-11-28 | 2015-04-01 | 哈尔滨广瀚燃气轮机有限公司 | Throttle control system logical signal modular converter |
-
2014
- 2014-11-28 CN CN201410701125.7A patent/CN104536363B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0665134A2 (en) * | 1994-01-29 | 1995-08-02 | Shenyan Enterprise Int'l Pte Ltd. | Dimmer controller circuit for automobile headlamps |
| KR20040021437A (en) * | 2002-09-04 | 2004-03-10 | 위니아만도 주식회사 | Apparatus for controlling inner temperature of kimchi storage |
| CN201517333U (en) * | 2009-09-22 | 2010-06-30 | 李昌刚 | Automobile window anti-nip controller based on ripple current detection |
| CN201539338U (en) * | 2009-10-30 | 2010-08-04 | 南京威孚金宁有限公司 | Electronic control unit of dispensing pump |
| JP2012095510A (en) * | 2010-10-29 | 2012-05-17 | Honda Motor Co Ltd | Power supply unit |
| CN202183591U (en) * | 2011-04-19 | 2012-04-04 | 巨争号 | Voltage abnormity protecting device having a relay characteristic |
| CN102938648A (en) * | 2012-10-31 | 2013-02-20 | 上海华兴数字科技有限公司 | Analog quantity output circuit applied to controller of engineering machinery |
| CN204241928U (en) * | 2014-11-28 | 2015-04-01 | 哈尔滨广瀚燃气轮机有限公司 | Throttle control system logical signal modular converter |
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| CN104536363B (en) | 2017-05-10 |
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