CN105240131B - Gas turbine control method and device - Google Patents
Gas turbine control method and device Download PDFInfo
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- CN105240131B CN105240131B CN201510557441.6A CN201510557441A CN105240131B CN 105240131 B CN105240131 B CN 105240131B CN 201510557441 A CN201510557441 A CN 201510557441A CN 105240131 B CN105240131 B CN 105240131B
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Abstract
The invention discloses a kind of gas turbine control method and device, method includes：DC voltage is obtained according to High Pressure Turbine Rotor tach signal；DC voltage is compared with reference voltage, and exports comparative result；Judge whether that output control is instructed according to comparative result.The gas turbine control method that the present invention is provided obtains DC voltage by High Pressure Turbine Rotor tach signal, then DC voltage is compared with reference voltage, and export comparative result, corresponding control instruction is exported finally according to comparative result, to reach gas turbine under the states such as starting, normal work, parking, corresponding control instruction can be sent in time according to High Pressure Turbine Rotor tach signal, the purpose accurately controlled gas turbine working condition is realized.
Description
Technical field
The present invention relates to technical field of engines, especially, it is related to a kind of gas turbine control method and device.
Background technology
Gas turbine is a kind of middle-size and small-size ground gas turbine, can be as armored vehicle and Small Vessel power, its
As core institution into distributed energy resource system have in fields such as electric power, oil, chemical industry, metallurgy, ship, railway locomotive power
Wide application prospect, emergency power supply is suitable as and undertakes the peakload in power network, power network can be ensured quickly
Safe operation, reduces casualty loss, and in order that gas turbine is normal and effective operating, gas turbine working condition is carried out
Control seems most important, and at present, not a kind of method can effectively realize the accurate control to gas turbine working condition
System, therefore, the problem of working condition for how accurately controlling gas turbine is a urgent need to resolve.
The content of the invention
The invention provides a kind of gas turbine control method and device, to solve the work for how accurately controlling gas turbine
Make the technical problem of state.
The technical solution adopted by the present invention is as follows：
A kind of gas turbine control method, including：
DC voltage is obtained according to High Pressure Turbine Rotor tach signal；
DC voltage is compared with reference voltage, and exports comparative result；
Judge whether that output control is instructed according to comparative result.
Further, corresponding DC voltage is obtained according to High Pressure Turbine Rotor tach signal, specifically included：
Corresponding sine wave signal is obtained according to High Pressure Turbine Rotor tach signal；
Corresponding square-wave signal is obtained according to sine wave signal；
DC voltage is obtained according to square-wave signal.
Further, before DC voltage is obtained according to High Pressure Turbine Rotor tach signal, in addition to：
High Pressure Turbine Rotor rotating speed is sampled, High Pressure Turbine Rotor tach signal is obtained.
Further, DC voltage is compared with reference voltage, and exports comparative result, specifically included：
DC voltage and the reference voltage of setting are compared, if DC voltage is more than reference voltage, the ratio exported
Relatively result is high level, and otherwise, comparative result is low level.
Further, judge whether that output control is instructed according to comparative result, specifically include：
When comparative result is high level, output control instruction.
According to another aspect of the present invention, a kind of gas turbine control device is additionally provided, including：
Tach signal processing module, for High Pressure Turbine Rotor rotating speed to be converted into DC voltage；
Voltage comparison module, for DC voltage to be compared with reference voltage, and exports comparative result；
Performing module, for judging whether that output control is instructed according to comparative result.
Further, tach signal processing module specifically for,
Corresponding sine wave signal is obtained according to High Pressure Turbine Rotor tach signal；
Corresponding square-wave signal is obtained according to sine wave signal；
DC voltage is obtained according to square-wave signal.
Further, in addition to：
Rotating speed sampling module, for being sampled to High Pressure Turbine Rotor rotating speed, obtains High Pressure Turbine Rotor tach signal.
Further, voltage comparison module specifically for,
DC voltage and the reference voltage of setting are compared, if DC voltage is more than reference voltage, the ratio exported
Relatively result is high level, and otherwise, comparative result is low level.
Further, performing module specifically for,
When comparative result is high level, output control instruction.
The invention has the advantages that：
Gas turbine control method and device that the present invention is provided, by obtaining straight according to High Pressure Turbine Rotor tach signal
Voltage is flowed, is then compared DC voltage with reference voltage, and exports comparative result, is exported finally according to comparative result
Corresponding control instruction, to reach gas turbine under the states such as starting, normal work, parking, can turn according to high-pressure turbine
Rotor speed signal sends corresponding control instruction in time, realizes the purpose accurately controlled gas turbine working condition.
In addition to objects, features and advantages described above, the present invention also has other objects, features and advantages.
Below with reference to figure, the present invention is further detailed explanation.
Brief description of the drawings
The accompanying drawing for constituting the part of the application is used for providing a further understanding of the present invention, schematic reality of the invention
Apply example and its illustrate to be used to explain the present invention, do not constitute inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is the gas turbine control method schematic flow sheet of the preferred embodiment of the present invention one；
Fig. 2 is the gas turbine control method schematic flow sheet of the preferred embodiment of the present invention two；
Fig. 3 is that the principle for obtaining DC voltage according to High Pressure Turbine Rotor tach signal of the preferred embodiment of the present invention two is shown
It is intended to；
Fig. 4 is the gas turbine control device module diagram of the preferred embodiment of the present invention three；
Fig. 5 is the gas turbine control device module diagram of the preferred embodiment of the present invention four；
Fig. 6 is the voltage comparison module of the preferred embodiment of the present invention four and the circuit diagram of performing module.
Embodiment
Embodiments of the invention are described in detail below in conjunction with accompanying drawing, but the present invention can be defined by the claims
Implement with the multitude of different ways of covering.
Embodiment one
Reference picture 1, the preferred embodiments of the present invention provide a kind of gas turbine control method, including：
Step 101, DC voltage is obtained according to High Pressure Turbine Rotor tach signal.
High Pressure Turbine Rotor tach signal is passed through into a series of processing, corresponding DC voltage is obtained.
Step 102, DC voltage is compared with reference voltage, and exports comparative result.
Specifically, reference voltage is used to compare with DC voltage, the number of reference voltage can be carried out according to actual conditions
Set, be not limited thereto.
Step 103, judge whether that output control is instructed according to comparative result.
Comparative result in step 102 is high level or low level, and corresponding control is exported according to high level or low level
System instruction.
The present embodiment obtains DC voltage by High Pressure Turbine Rotor tach signal, then by DC voltage and reference voltage
It is compared, and exports comparative result, corresponding control instruction is exported finally according to comparative result, reaches that gas turbine exists
Under the states such as starting, normal work, parking, corresponding control can be sent in time according to High Pressure Turbine Rotor tach signal and referred to
Order, realizes the purpose accurately controlled gas turbine working condition.
Embodiment two
The present embodiment is the supplementary notes carried out on the basis of above-described embodiment.
Reference picture 2, the preferred embodiments of the present invention provide a kind of gas turbine control method, including：
Step 101, DC voltage is obtained according to High Pressure Turbine Rotor tach signal.
High Pressure Turbine Rotor tach signal is passed through into a series of processing, corresponding DC voltage is obtained.
Further, step 101 is specifically included：
Step 1011, corresponding sine wave signal is obtained according to High Pressure Turbine Rotor tach signal.
Specifically, High Pressure Turbine Rotor tach signal can be converted into sine proportional therewith by magnetic tachometer sensor
Ripple signal.
Step 1012, corresponding square-wave signal is obtained according to sine wave signal.
Specifically, the sine wave signal input operational amplifier circuit obtained in step 1011 is carried out into shaping, arteries and veins is obtained
Rush the width square-wave signal proportional to frequency.
Step 1013, DC voltage is obtained according to square-wave signal.
Specifically, controlling the electronic switch being made up of analog switch according to the change of the square-wave pulse width of square-wave signal
Circuit, to cause the conducting and the change of turn-off time of switch, then after the processing of low-pass filtered device, obtains DC voltage, this is straight
Stream voltage is directly proportional to High Pressure Turbine Rotor tach signal.
With reference to Fig. 3, Fig. 3 is the fundamental diagram of step 101, can be by magnetic tachometer sensor by High Pressure Turbine Rotor rotating speed
Signal is converted into sine wave signal proportional therewith, and the sine wave signal input operational amplifier of acquisition is carried out into shaping, obtained
The pulse width square-wave signal proportional to frequency is obtained, is controlled according to the change of the square-wave pulse width of square-wave signal by simulating
The electronic switching circuit constituted is switched, to cause the conducting and the change of turn-off time of switch, then after the processing of low-pass filtered device,
DC voltage is obtained, the DC voltage is directly proportional to High Pressure Turbine Rotor tach signal.
Step 102, DC voltage is compared with reference voltage, and exports comparative result.
Specifically, reference voltage is used to compare with DC voltage, the number of reference voltage can be carried out according to actual conditions
Set, be not limited thereto.
Further, DC voltage and the reference voltage of setting are compared, if DC voltage is more than reference voltage,
The comparative result of output is high level, otherwise, and the comparative result of output is low level.
Step 103, judge whether that output control is instructed according to comparative result.
Comparative result in step 102 is high level or low level, and corresponding control is exported according to high level or low level
System instruction.
Further, when comparative result is high level, output control instruction, so that starter box, gas to gas turbine
The parts such as movement controller are controlled.
Further, before step 101, in addition to step 104：High Pressure Turbine Rotor rotating speed is sampled, obtains high
Press turbine rotor tach signal.
Then the present embodiment will by the way that High Pressure Turbine Rotor tach signal to be converted into sine wave signal proportional therewith
Sine wave signal input operational amplifier circuit carries out shaping, obtains the pulse width square-wave signal proportional to frequency, finally
According to square-wave signal, the DC voltage being directly proportional to High Pressure Turbine Rotor tach signal is obtained, by DC voltage and the ginseng of setting
Examine voltage to be compared, if DC voltage is more than reference voltage, the comparative result exported is high level, and now output control refers to
Make, so that the part such as starter box, pneumatic controller to gas turbine is controlled, to reach according to High Pressure Turbine Rotor rotating speed
Signal sends corresponding control instruction in time, realizes the purpose accurately controlled gas turbine working condition.
Embodiment three
Reference picture 4, the preferred embodiments of the present invention provide a kind of gas turbine control device, including tach signal is handled
Module 201, voltage comparison module 202 and performing module 203.
Wherein, tach signal processing module 201, for High Pressure Turbine Rotor rotating speed to be converted into DC voltage；Voltage ratio
Compared with module 202, for the DC voltage and reference voltage to be compared, and comparative result is exported；Performing module 203, is used
According to the comparative result judge whether output control instruct.
The device of the present embodiment can realize above method embodiment, and the function of the device comprising modules is only briefly to retouch
State, detailed implementation refers to above method embodiment, and here is omitted.
The present embodiment obtains DC voltage by tach signal processing module 201, then will using voltage comparison module 202
DC voltage is compared with reference voltage, and exports comparative result, finally by performing module 203 is exported according to comparative result
Corresponding control instruction, to reach gas turbine under the states such as starting, normal work, parking, can turn according to high-pressure turbine
Rotor speed signal sends corresponding control instruction in time, realizes the purpose accurately controlled gas turbine working condition.
Example IV
The present embodiment is the supplementary notes carried out on the basis of embodiment three.
Tach signal processing module 201 specifically for：Corresponding sine wave is obtained according to High Pressure Turbine Rotor tach signal
Signal；Corresponding square-wave signal is obtained according to sine wave signal；DC voltage is obtained according to square-wave signal.
Further, voltage comparison module 202 specifically for by DC voltage and set reference voltage be compared, if
DC voltage is more than reference voltage, then the comparative result exported is high level, and otherwise, comparative result is low level.
Further, performing module 203 is specifically for when comparative result is high level, output control is instructed.
Further, reference picture 5, Fig. 5 is the module diagram of the gas turbine control device in the present embodiment, this implementation
Gas turbine control device in example also includes：Rotating speed sampling module 204, for being sampled to High Pressure Turbine Rotor rotating speed,
Obtain High Pressure Turbine Rotor tach signal.
Further, the gas turbine control device in the present embodiment also includes Power Entry Module 205, for for rotating speed
Signal processing module 201, voltage comparison module 202 and performing module 203 provide power supply.Power conversion module 206, for defeated
The supply voltage entered enters line translation, exports different voltages and supplies processing module 201, voltage comparison module 202 and performing module 203
Use, because processing module 201, voltage comparison module 202 and performing module 203 may be needed in different operating at voltages,
So identical voltage is provided by Power Entry Module 205, then through power conversion in actual use for the convenience of application
Module 206 is handled, and different voltages are exported after conversion to be made for processing module 201, voltage comparison module 202 and performing module 203
With.
Reference picture 6, Fig. 6 is the circuit diagram of voltage comparison module 202 and performing module 203, and specific embodiment is set forth below
Illustrate.
The control instruction corresponding to 5 kinds of different High Pressure Turbine Rotor tach signal frequencies is enumerated in the present embodiment, accordingly,
The DC voltage for setting 5 kinds of reference voltages to be used to be converted into High Pressure Turbine Rotor tach signal is needed to be compared, such as the institute of table 1
Show, but the present embodiment is not limited to that, the number and species of control instruction can be set according to actual conditions.
Table 1
In Fig. 6, voltage comparison module 202 includes five voltage comparator circuits that operational amplifier N1-N5 is constituted, and performs mould
Block 203 includes triode V1-V5 and relay K1-K5.
By High Pressure Turbine Rotor tach signal after the processing described in above-described embodiment, by the DC voltage of acquisition
It is sent to voltage comparison module 202 to make comparisons with reference voltage, when DC voltage exceedes reference voltage, corresponding voltage ratio is more electric
A conducting in triode V1-V5 in road output high level control performing module 203, and then control in performing module 203
Relay K1-K5 in a conducting to export corresponding control instruction.
The present embodiment obtains DC voltage by tach signal processing module 201, then will using voltage comparison module 202
DC voltage is compared with reference voltage, the corresponding high electricity of voltage comparator circuit output when DC voltage exceedes reference voltage
A conducting in triode V1-V5 in flat control performing module 203, and then control the relay K1- in performing module 203
A conducting in K5 is to export corresponding control instruction, to reach gas turbine in states such as starting, normal work, parkings
Under, corresponding control instruction can be sent in time according to High Pressure Turbine Rotor tach signal, realized to gas turbine working condition
The purpose accurately controlled.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (6)
1. a kind of gas turbine control method, it is characterised in that including：
DC voltage is obtained according to High Pressure Turbine Rotor tach signal；
The DC voltage and reference voltage are compared, and export comparative result；
Judge whether that output control is instructed according to the comparative result；
The High Pressure Turbine Rotor tach signal includes High Pressure Turbine Rotor tach signal frequency, described according to High Pressure Turbine Rotor
The step of tach signal obtains DC voltage includes：
By the High Pressure Turbine Rotor tach signal frequency conversion into DC voltage；
It is described to be compared the DC voltage and reference voltage, and include the step of export comparative result：
The DC voltage is compared with the reference voltage, exported when the DC voltage exceedes the reference voltage
High level；
It is described to judge whether that the step of output control is instructed includes according to the comparative result：
When the comparative result is high level, corresponding control instruction is exported according to default control instruction mapping table, wherein,
The High Pressure Turbine Rotor tach signal frequency and the control instruction are mapped with the control instruction mapping table between the two
Corresponding relation.
2. gas turbine control method according to claim 1, it is characterised in that described according to High Pressure Turbine Rotor rotating speed
The corresponding DC voltage of signal acquisition, is specifically included：
Corresponding sine wave signal is obtained according to the High Pressure Turbine Rotor tach signal；
Corresponding square-wave signal is obtained according to the sine wave signal；
DC voltage is obtained according to the square-wave signal.
3. gas turbine control method according to claim 1, it is characterised in that turned described according to High Pressure Turbine Rotor
Before fast signal acquisition DC voltage, in addition to：
The High Pressure Turbine Rotor rotating speed is sampled, the High Pressure Turbine Rotor tach signal is obtained.
4. a kind of gas turbine control device, it is characterised in that
Tach signal processing module, for High Pressure Turbine Rotor rotating speed to be converted into DC voltage, is additionally operable to turn high-pressure turbine
Rotor speed signal frequency is converted into DC voltage；
Voltage comparison module, for the DC voltage and reference voltage to be compared, and exports comparative result, be additionally operable to by
The DC voltage is compared with the reference voltage, the high electricity of output when the DC voltage exceedes the reference voltage
It is flat；
Performing module, for judging whether that output control is instructed according to the comparative result, is additionally operable to when the comparative result is
During high level, corresponding control instruction is exported according to default control instruction mapping table, wherein, in the control instruction mapping table
It is mapped with the corresponding relation of the High Pressure Turbine Rotor tach signal frequency and the control instruction between the two.
5. gas turbine control device according to claim 4, it is characterised in that tach signal processing module is specifically used
In,
Corresponding sine wave signal is obtained according to the High Pressure Turbine Rotor tach signal；
Corresponding square-wave signal is obtained according to the sine wave signal；
DC voltage is obtained according to the square-wave signal.
6. gas turbine control device according to claim 4, it is characterised in that also include：
Rotating speed sampling module, for being sampled to the High Pressure Turbine Rotor rotating speed, obtains the High Pressure Turbine Rotor rotating speed
Signal.
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| CN201510557441.6A CN105240131B (en) | 2015-09-02 | 2015-09-02 | Gas turbine control method and device |
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| CN201510557441.6A CN105240131B (en) | 2015-09-02 | 2015-09-02 | Gas turbine control method and device |
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| CN105240131A CN105240131A (en) | 2016-01-13 |
| CN105240131B true CN105240131B (en) | 2017-10-24 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US4875168A (en) * | 1987-12-22 | 1989-10-17 | United Technologies Corporation | Engine speed control apparatus |
| JPH06264762A (en) * | 1993-03-11 | 1994-09-20 | Nissan Motor Co Ltd | Controller for gas turbine engine |
| JPH07102994A (en) * | 1993-10-08 | 1995-04-18 | Ebara Corp | Control device for gas turbine driving generator |
| US6729139B2 (en) * | 2001-09-26 | 2004-05-04 | Goodrich Pump & Engine Control Systems, Inc. | Engine control system |
| KR101184744B1 (en) * | 2010-06-30 | 2012-09-20 | 한국전력공사 | Turbine control device and method |
| KR101633169B1 (en) * | 2014-01-24 | 2016-06-24 | 두산중공업 주식회사 | Control method and control device of gas turbine engine in starting |
| CN204283625U (en) * | 2014-12-02 | 2015-04-22 | 哈尔滨广瀚燃气轮机有限公司 | Gas turbine rotary speed conditioning module |
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Address after: 412002 Dong Jiaduan, Zhuzhou, Hunan Patentee after: China Hangfa South Industrial Co. Ltd. Address before: 412002 Dong Jiaduan, Zhuzhou, Hunan Patentee before: China Southern Airlines Industry (Group) Co., Ltd. |
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