CN104696078B - The control method and device of fuel quantity for gas turbines - Google Patents
The control method and device of fuel quantity for gas turbines Download PDFInfo
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- CN104696078B CN104696078B CN201510019469.4A CN201510019469A CN104696078B CN 104696078 B CN104696078 B CN 104696078B CN 201510019469 A CN201510019469 A CN 201510019469A CN 104696078 B CN104696078 B CN 104696078B
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Abstract
The present invention discloses a kind of control method and device of fuel quantity for gas turbines, can be improved the accuracy of the switching time of prior art control logic.The described method includes: determining the control logic that currently carry out fuel regulation from pre-set control logic；Fuel quantity signal is determined according to the control logic that currently carry out fuel regulation, and the fuel quantity signal is filtered；The filtered fuel quantity signal is sent to pre-set fuel threshold control module.Described device includes: the first determination unit, the control logic for determining currently to carry out fuel regulation from pre-set control logic；Second determination unit for determining fuel quantity signal according to the control logic that currently carry out fuel regulation, and is filtered the fuel quantity signal；Transmission unit, for the filtered fuel quantity signal to be sent to pre-set fuel threshold control module.
Description
Technical field
The present invention relates to automation fields, and in particular to a kind of control method and dress of fuel quantity for gas turbines
It sets.
Background technique
Heavy single shift gas turbine include compressor, combustion chamber and combustion gas turbine etc. composition, gas turbine it is worked
Cheng Shi, compressor continuously suck air and are compressed it from atmosphere；Compressed air enters combustion chamber, the combustion with penetrating
Material mixing after-combustion, becomes high-temperature fuel gas, flows into expansion work in combustion gas turbine immediately, push turbo wheel with gas compressor blade
Wheel rotates together.The control of heavy single shift gas turbine mainly includes the control of fuel quantity and air mass flow, wherein being mainly
The control of fuel quantity.It is instructed in the different phase that gas turbine starts and runs using the control logic of different control targets
The aperture of fuel valve, so that the fuel quantity for being sent into gas turbine is controlled, for example, patrolling during startup using starting control
Volume, revolving speed control logic is used during on-load, using control logic is shut down in stopping process, when turbine exhaust temperature is super
Using temperature control logic when crossing delivery temperature benchmark, Acceleration Control logic is used when acceleration is more than acceleration benchmark.
The selection of the controller of the most common heavy duty gas turbine is to select door to realize by minimum value, under normal circumstances, root
The fuel quantity calculated according to certain controller is minimum, which will select door to choose by minimum value, and then fuel threshold controls
Module will control the aperture of fuel valve according to the smallest amount of fuel, make to enter the fuel quantity of the combustion chamber minimum fuel
Amount.
And the prior art is in some the calculated fuel of the control logic different from the control logic being currently controlling
The just switching of progress control logic when amount is minimum, and deviation and the product of proportional action coefficient and final fuel quantity feedback and one
The sum of products of rank inertial element is the calculation formula of control logic fuel quantity, this allows for the prior art and will appear currently select
It selects a certain control logic and is not minimum situation, i.e., existing control logic according to the calculated fuel quantity of the control logic
Switching time inaccuracy, to will lead to the unstable of gas turbine.
Summary of the invention
The switching time inaccuracy for the control logic that will appear the technical problem to be solved by the present invention is to the prior art
Problem.
For this purpose, the present invention proposes a kind of control method of fuel quantity for gas turbines, comprising:
The control logic that currently carry out fuel regulation is determined from pre-set control logic；Wherein, described
Pre-set control logic includes: starting control logic, revolving speed control logic, temperature control logic, Acceleration Control logic
With shutdown control logic；
Fuel quantity signal is determined according to the control logic that currently carry out fuel regulation, and to the fuel quantity
Signal is filtered；
The filtered fuel quantity signal is sent to pre-set fuel threshold control module.
The control method of fuel quantity for gas turbines of the embodiment of the present invention, firstly, from pre-set control logic
In determine the control logic that currently carry out fuel regulation, then, according to the control that currently carry out fuel regulation
Logic processed determines fuel quantity signal, and is filtered to the fuel quantity signal, finally, the filtered fuel quantity is believed
Number it is sent to pre-set fuel threshold control module, the switching time that this allows for different control logics is more accurate, together
When, the setting of link is filtered, so that the switching of different control logics is more smooth, noise jamming can be prevented.
On the other hand, the present invention proposes a kind of control device of fuel quantity for gas turbines, comprising:
First determination unit, the control for determining currently to carry out fuel regulation from pre-set control logic
Logic processed；Wherein, the pre-set control logic includes: and starts control logic, revolving speed control logic, temperature to control and patrol
Volume, Acceleration Control logic and shut down control logic；
Second determination unit, for determining that fuel quantity is believed according to the control logic that currently carry out fuel regulation
Number, and the fuel quantity signal is filtered；
Transmission unit, for the filtered fuel quantity signal to be sent to pre-set fuel threshold control module.
The control device of fuel quantity for gas turbines of the embodiment of the present invention, firstly, from pre-set control logic
In determine the control logic that currently carry out fuel regulation, then, according to the control that currently carry out fuel regulation
Logic processed determines fuel quantity signal, and is filtered to the fuel quantity signal, finally, the filtered fuel quantity is believed
Number it is sent to pre-set fuel threshold control module, the switching time that this allows for different control logics is more accurate, together
When, the setting of link is filtered, so that the switching of different control logics is more smooth, noise jamming can be prevented.
Detailed description of the invention
Fig. 1 show a kind of process signal of one embodiment of control method of fuel quantity for gas turbines of the present invention
Figure；
Fig. 2 is a kind of flow diagram of another embodiment of control method of fuel quantity for gas turbines of the present invention；
Fig. 3 is a kind of part process signal of another embodiment of control method of fuel quantity for gas turbines of the present invention
Figure；
Fig. 4 is a kind of part process signal of another embodiment of control method of fuel quantity for gas turbines of the present invention
Figure；
Fig. 5 is a kind of part process signal of another embodiment of control method of fuel quantity for gas turbines of the present invention
Figure；
Fig. 6 is a kind of part process signal of another embodiment of control method of fuel quantity for gas turbines of the present invention
Figure；
Fig. 7 is a kind of flow diagram of the another embodiment of control method of fuel quantity for gas turbines of the present invention；
Fig. 8 is a kind of frame structure schematic diagram of one embodiment of control device of fuel quantity for gas turbines.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical solution in the embodiment of the present invention is explicitly described, it is clear that described embodiment is the present invention
A part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not having
Every other embodiment obtained under the premise of creative work is made, shall fall within the protection scope of the present invention.
As shown in Figure 1, the present embodiment discloses a kind of control method of fuel quantity for gas turbines, comprising:
S1, the control logic that currently carry out fuel regulation is determined from pre-set control logic；Wherein, institute
Stating pre-set control logic includes: to start control logic, revolving speed control logic, temperature control logic, Acceleration Control to patrol
Collect and shut down control logic；
S2, fuel quantity signal is determined according to the control logic that currently carry out fuel regulation, and to the combustion
Doses signal is filtered；
S3, the filtered fuel quantity signal is sent to pre-set fuel threshold control module.
The control method of fuel quantity for gas turbines of the embodiment of the present invention, firstly, from pre-set control logic
In determine the control logic that currently carry out fuel regulation, then, according to the control that currently carry out fuel regulation
Logic processed determines fuel quantity signal, and is filtered to the fuel quantity signal, finally, the filtered fuel quantity is believed
Number it is sent to pre-set fuel threshold control module, the switching time that this allows for different control logics is more accurate, together
When, the setting of link is filtered, so that the switching of different control logics is more smooth, noise jamming can be prevented.
Optionally, referring to Fig. 2, in another embodiment of the control method of present invention fuel quantity for gas turbines,
The control logic for determining currently to carry out fuel regulation from pre-set control logic, comprising:
Judge whether the temperature control logic and the Acceleration Control logic are effective；
If the temperature control logic and the Acceleration Control logical validity, judge the excellent of the temperature control logic
Whether first grade is higher than the priority of the Acceleration Control logic, if the priority of the temperature control logic is higher than the acceleration
Spend the priority of control logic, it is determined that going out the temperature control logic is the control logic that currently carry out fuel regulation,
Otherwise, it is determined that going out the Acceleration Control logic is currently to carry out the control logic of fuel regulation；Or
If the temperature control logic is effective, the Acceleration Control logic is invalid, it is determined that goes out the temperature control and patrols
Collecting is the control logic that currently carry out fuel regulation；Or
If the Acceleration Control logical validity, the temperature control logic are invalid, it is determined that go out the Acceleration Control
Logic is currently to carry out the control logic of fuel regulation；Or
If the temperature control logic and the Acceleration Control logic are invalid, whether the shutdown control logic is judged
Effectively, if the shutdown control logic is effective, it is determined that going out the shutdown control logic is currently to carry out fuel regulation
Control logic, alternatively, judging whether the starting control logic is effective, if described open if the shutdown control logic is invalid
Dynamic control logic is effective, it is determined that go out the starting control logic be currently to carry out the control logic of fuel regulation, alternatively,
If the starting control logic is invalid, it is determined that going out the revolving speed control logic is currently to carry out the control of fuel regulation to patrol
Volume.
In the embodiment of the present invention, the excellent of control logic is considered in temperature control logic and effective Acceleration Control logic
First grade makes the control of the higher control logic grasp fuel quantity of priority in the two, control process can be made more safe.
Optionally, referring to Fig. 3, in another embodiment of the control method of present invention fuel quantity for gas turbines,
Whether the priority for judging the temperature control logic is higher than the priority of the Acceleration Control logic, comprising:
S10, judge gas turbine combustion gas turbine delivery temperature and preset first exhaust temperature deviation, and it is default
The first quantizing factor product whether be greater than the combustion gas turbine and compressor that connect the gas turbine axis rotation acceleration
The deviation of degree and preset first acceleration, the product with preset second quantizing factor；
If the deviation of the delivery temperature of S11, the combustion gas turbine and the first exhaust temperature, with it is described first quantization because
The product of son is greater than the acceleration and described first of the axis rotation of the combustion gas turbine and compressor of the connection gas turbine
The deviation of acceleration, the product with second quantizing factor, it is determined that the priority for going out the temperature control logic is higher than institute
The priority of Acceleration Control logic is stated, otherwise, it is determined that the priority for going out the Acceleration Control logic is higher than the temperature
The priority of control logic.
Optionally, referring to fig. 4 to fig. 6, in another implementation of the control method of present invention fuel quantity for gas turbines
It is described to judge whether the temperature control logic and the Acceleration Control logic are effective in example, comprising:
S12, judge whether the delivery temperature of the combustion gas turbine of the gas turbine is greater than preset second exhaust temperature, institute
Whether the acceleration for stating the axis rotation of the combustion gas turbine and compressor that connect the gas turbine is greater than preset second acceleration；
If the delivery temperature of the combustion gas turbine of S13, the gas turbine is greater than the second exhaust temperature, it is determined that go out institute
It is effective to state temperature control logic, otherwise, it is determined that the temperature control logic is invalid out, if the connection gas turbine
The acceleration of the axis of combustion gas turbine and compressor rotation is greater than second acceleration, it is determined that goes out the Acceleration Control logic
Effectively, otherwise, it is determined that it is invalid to go out the Acceleration Control logic；
It is wherein, described to judge whether the shutdown control logic is effective, comprising:
S14, judge whether the stop botton of the gas turbine is pressed；
If the stop botton of S15, the gas turbine are pressed, it is determined that the shutdown control logic is effective out, otherwise, then
Determine that the shutdown control logic is invalid；
It is described to judge whether pre-set starting control logic is effective, comprising:
S16, judge whether the start button of the gas turbine is pressed；
If the start button of S17, the gas turbine are pressed, the combustion gas turbine of the connection gas turbine is judged
Whether it is less than preset first revolving speed with the revolving speed of the axis of compressor；
If the revolving speed of the axis of S18, the combustion gas turbine of the connection gas turbine and compressor is less than described first turn
Speed, it is determined that the starting control logic is effective out, otherwise, it is determined that it is invalid to go out the starting control logic.
In the embodiment of the present invention, preset first revolving speed can be 90% rated speed.
Optionally, referring to Fig. 7, in another embodiment of the control method of present invention fuel quantity for gas turbines,
It is described that fuel quantity signal is determined according to the control logic that currently carry out fuel regulation, comprising:
If the control logic that currently carry out fuel regulation is the temperature control logic, the closed loop ratio is used
Example-integral-derivative controller is according to the delivery temperature of the combustion gas turbine of the gas turbine and preset second exhaust temperature
Deviation calculates temperature and controls fuel quantity, alternatively, using the closed loop proportional-integral-derivative controller according to the deviation and in advance
If proportional action coefficient product and final fuel quantity feedback and the sum of products of preset first order inertial loop calculate it is warm
Degree control fuel quantity；Or
If the control logic that currently carry out fuel regulation is the Acceleration Control logic, the closed loop ratio is used
The acceleration that example-integral-derivative controller is rotated according to the combustion gas turbine of the connection gas turbine and the axis of compressor
And the deviation of preset second acceleration calculates Acceleration Control fuel quantity, alternatively, using the closed loop proportional-Integrated Derivative
Controller is used according to the deviation and the product of preset proportional action coefficient and final fuel quantity feedback and preset single order
Property link the sum of products calculate Acceleration Control fuel quantity；Or
If the control logic that currently carry out fuel regulation is the shutdown control logic, according to current fuel quantity
Control fuel quantity is shut down with preset reduction rate calculations；Or
If the control logic that currently carry out fuel regulation is the starting control logic, according to preset fuel quantity
Warming-up value and preset calculating starting control fuel quantity of advancing the speed；Or
If the control logic that currently carry out fuel regulation is the revolving speed control logic, closed loop proportional-product is used
Point-derivative controller is inclined according to revolving speed and preset second revolving speed of the combustion gas turbine of connection gas turbine and the axis of compressor
Difference calculates revolving speed and controls fuel quantity, alternatively, using closed loop proportional-integral-derivative controller according to the deviation and preset ratio
The product of example function coefficient and final fuel quantity feedback and the sum of products of preset first order inertial loop calculate revolving speed control
Fuel quantity.
In the embodiment of the present invention, need to be arranged different control logics according to the gas turbine difference control stage, and set
The priority for setting different control logics realizes the selection of the control logic with different priorities using multiple switching switches,
Feedback filtering link is set by output filtering link or in control logic to realize the no-harass switch of different control logics.
As shown in figure 8, the present embodiment discloses a kind of control device of fuel quantity for gas turbines, comprising:
First determination unit 1 will currently carry out fuel regulation for determining from pre-set control logic
Control logic；Wherein, the pre-set control logic includes: and starts control logic, revolving speed control logic, temperature to control and patrol
Volume, Acceleration Control logic and shut down control logic；
Second determination unit 2, for determining fuel quantity according to the control logic that currently carry out fuel regulation
Signal, and the fuel quantity signal is filtered；
Transmission unit 3, for the filtered fuel quantity signal to be sent to pre-set fuel threshold control module.
The control device of fuel quantity for gas turbines of the embodiment of the present invention, firstly, from pre-set control logic
In determine the control logic that currently carry out fuel regulation, then, according to the control that currently carry out fuel regulation
Logic processed determines fuel quantity signal, and is filtered to the fuel quantity signal, finally, the filtered fuel quantity is believed
Number it is sent to pre-set fuel threshold control module, the switching time that this allows for different control logics is more accurate, together
When, the setting of link is filtered, so that the switching of different control logics is more smooth, noise jamming can be prevented.
Optionally, in another embodiment of the control device of present invention fuel quantity for gas turbines, described first
Determination unit, comprising:
First judgment sub-unit, for judging whether the temperature control logic and the Acceleration Control logic are effective；
First determines subelement, if being used for the temperature control logic and the Acceleration Control logical validity, judges
Whether the priority of the temperature control logic is higher than the priority of the Acceleration Control logic, if the temperature control logic
Priority be higher than the Acceleration Control logic priority, it is determined that go out the temperature control logic be currently to be fired
The control logic of doses control, otherwise, it is determined that going out the Acceleration Control logic is currently to carry out the control of fuel regulation
Logic processed；Or
Second determines subelement, if effective for the temperature control logic, the Acceleration Control logic is invalid, then really
Making the temperature control logic is the control logic that currently carry out fuel regulation；Or
Third determines subelement, if being used for the Acceleration Control logical validity, the temperature control logic is invalid, then really
Making the Acceleration Control logic is currently to carry out the control logic of fuel regulation；Or
4th determines subelement, if invalid for the temperature control logic and the Acceleration Control logic, judges
Whether the shutdown control logic is effective, if the shutdown control logic is effective, it is determined that going out the shutdown control logic is to work as
Before to carry out the control logic of fuel regulation, alternatively, judging that the starting control is patrolled if the shutdown control logic is invalid
It collects whether effectively, if the starting control logic is effective, it is determined that going out the starting control logic is currently to carry out fuel quantity
The control logic of control, alternatively, if the starting control logic is invalid, it is determined that go out the revolving speed control logic be currently will be into
The control logic of row fuel regulation.
In the embodiment of the present invention, the excellent of control logic is considered in temperature control logic and effective Acceleration Control logic
First grade makes the control of the higher control logic grasp fuel quantity of priority in the two, control process can be made more safe.
Optionally, in another embodiment of the control device of present invention fuel quantity for gas turbines, described first
Determine subelement, comprising:
First judgment module, for judging the delivery temperature and preset first exhaust temperature of the combustion gas turbine of gas turbine
Deviation, the combustion gas turbine and compressor for connecting the gas turbine whether are greater than with the product of preset first quantizing factor
The acceleration of axis rotation and the deviation of preset first acceleration, the product with preset second quantizing factor；
First determining module, if for the delivery temperature of the combustion gas turbine and the deviation of the first exhaust temperature, with
The product of first quantizing factor is greater than adding for the axis rotation of the combustion gas turbine and compressor of the connection gas turbine
The deviation of speed and first acceleration, the product with second quantizing factor, it is determined that go out the temperature control logic
Priority be higher than the Acceleration Control logic priority, otherwise, it is determined that go out the Acceleration Control logic it is preferential
Grade is higher than the priority of the temperature control logic.
Optionally, in another embodiment of the control device of present invention fuel quantity for gas turbines, described first
Judgment sub-unit, comprising:
Second judgment module, for judging whether the delivery temperature of combustion gas turbine of the gas turbine is greater than preset
Two delivery temperatures, it is default whether the acceleration of the axis rotation of the combustion gas turbine and compressor of the connection gas turbine is greater than
The second acceleration；
Second determining module, if the delivery temperature of the combustion gas turbine for the gas turbine is greater than the second row temperature
Degree, it is determined that the temperature control logic is effective out, otherwise, it is determined that the temperature control logic is invalid out, if the connection
The acceleration of the axis rotation of the combustion gas turbine and compressor of the gas turbine is greater than second acceleration, it is determined that goes out described
Acceleration Control logical validity, otherwise, it is determined that it is invalid to go out the Acceleration Control logic；
Wherein, the described 4th subelement is determined, comprising:
Third judgment module, for judging whether the stop botton of the gas turbine is pressed；
Third determining module, if the stop botton for the gas turbine is pressed, it is determined that go out the shutdown control and patrol
It collects effectively, otherwise, it is determined that it is invalid to go out the shutdown control logic；
4th judgment module, for judging whether the start button of the gas turbine is pressed；
5th judgment module judges the connection combustion gas if the start button for the gas turbine is pressed
Whether the revolving speed of the axis of the combustion gas turbine and compressor of turbine is less than preset first revolving speed；
4th determining module, if the revolving speed of the axis of the combustion gas turbine and compressor for the connection gas turbine is small
In first revolving speed, it is determined that go out the starting control logic it is effective, otherwise, it is determined that out the starting control logic without
Effect.
In the embodiment of the present invention, preset first revolving speed can be 90% rated speed.
Optionally, in another embodiment of the control device of present invention fuel quantity for gas turbines, described second
Determination unit, comprising:
First computation subunit, if the control logic for currently to carry out fuel regulation is that temperature control is patrolled
Volume, then using the closed loop proportional-integral-derivative controller according to the delivery temperature of the combustion gas turbine of the gas turbine and pre-
If the deviation of second exhaust temperature calculate temperature and control fuel quantity, alternatively, using the control of the closed loop proportional-Integrated Derivative
Device is according to the deviation and the product of preset proportional action coefficient and final fuel quantity feedback and preset one order inertia ring
The sum of products of section calculates temperature and controls fuel quantity；Or
Second computation subunit, if the control logic for currently to carry out fuel regulation is that the Acceleration Control is patrolled
Volume, then it according to the combustion gas turbine of the connection gas turbine and is calmed the anger using the closed loop proportional-integral-derivative controller
The acceleration of axis rotation and the deviation of preset second acceleration of machine calculate Acceleration Control fuel quantity, alternatively, described in use
Closed loop proportional-integral-derivative controller is according to the deviation and the product of preset proportional action coefficient and final fuel quantity
Feedback and the sum of products of preset first order inertial loop calculate Acceleration Control fuel quantity；Or
Third computation subunit, if the control logic for currently to carry out fuel regulation is that shutdown control is patrolled
Volume, then control fuel quantity is shut down according to current fuel quantity and preset reduction rate calculations；Or
4th computation subunit, if the control logic for currently to carry out fuel regulation is that starting control is patrolled
Volume, then according to preset fuel quantity warming-up value and preset calculating starting control fuel quantity of advancing the speed；Or
5th computation subunit, if the control logic for currently to carry out fuel regulation is that revolving speed control is patrolled
Volume, then using closed loop proportional-integral-derivative controller according to the revolving speed of the combustion gas turbine of connection gas turbine and the axis of compressor
And the deviation of preset second revolving speed calculates revolving speed and controls fuel quantity, alternatively, using closed loop proportional-integral-derivative controller root
According to the deviation and the product of preset proportional action coefficient and final fuel quantity feedback and preset first order inertial loop
The sum of products calculates revolving speed and controls fuel quantity.
In the embodiment of the present invention, need to be arranged different control logics according to the gas turbine difference control stage, and set
The priority for setting different control logics realizes the selection of the control logic with different priorities using multiple switching switches,
Feedback filtering link is set by output filtering link or in control logic to realize the no-harass switch of different control logics.
Although the embodiments of the invention are described in conjunction with the attached drawings, but those skilled in the art can not depart from this hair
Various modifications and variations are made in the case where bright spirit and scope, such modifications and variations are each fallen within by appended claims
Within limited range.
Claims (8)
1. a kind of control method of fuel quantity for gas turbines characterized by comprising
The control logic that currently carry out fuel regulation is determined from pre-set control logic；Wherein, described preparatory
The control logic of setting includes: to start control logic, revolving speed control logic, temperature control logic, Acceleration Control logic sum to stop
Machine control logic；
Fuel quantity signal is determined according to the control logic that currently carry out fuel regulation, and to the fuel quantity signal
It is filtered；
The filtered fuel quantity signal is sent to pre-set fuel threshold control module；
The control logic for determining currently to carry out fuel regulation from pre-set control logic, comprising:
Judge whether the temperature control logic and the Acceleration Control logic are effective；
If the temperature control logic and the Acceleration Control logical validity, judge the priority of the temperature control logic
Whether the priority of the Acceleration Control logic is higher than, if the priority of the temperature control logic is higher than the acceleration control
The priority of logic processed, it is determined that going out the temperature control logic is the control logic that currently carry out fuel regulation, otherwise,
Then determine that the Acceleration Control logic is currently to carry out the control logic of fuel regulation；Or
If the temperature control logic is effective, the Acceleration Control logic is invalid, it is determined that going out the temperature control logic is
Currently to carry out the control logic of fuel regulation；Or
If the Acceleration Control logical validity, the temperature control logic are invalid, it is determined that go out the Acceleration Control logic
For the control logic that currently carry out fuel regulation；If the temperature control logic and the Acceleration Control logic without
Effect, then judge whether the shutdown control logic is effective, if the shutdown control logic is effective, it is determined that goes out the shutdown control
Logic is currently to carry out the control logic of fuel regulation, alternatively, opening described in judgement if the shutdown control logic is invalid
Whether dynamic control logic is effective, if the starting control logic is effective, it is determined that goes out the starting control logic for currently will be into
The control logic of row fuel regulation, alternatively, if the starting control logic is invalid, it is determined that going out the revolving speed control logic is
Currently to carry out the control logic of fuel regulation.
2. the control method of fuel quantity for gas turbines according to claim 1, which is characterized in that the judgement institute
Whether the priority for stating temperature control logic is higher than the priority of the Acceleration Control logic, comprising:
The delivery temperature of the combustion gas turbine of gas turbine and the deviation of preset first exhaust temperature are judged, with preset first amount
Whether the product of the change factor is greater than the acceleration of the axis rotation of the combustion gas turbine and compressor that connect the gas turbine and presets
The first acceleration deviation, the product with preset second quantizing factor；
The product if deviation of the delivery temperature of the combustion gas turbine and the first exhaust temperature, with first quantizing factor
Greater than the acceleration and first acceleration of the axis rotation of the combustion gas turbine and compressor of the connection gas turbine
Deviation, the product with second quantizing factor, it is determined that the priority for going out the temperature control logic is higher than the acceleration
The priority of control logic, otherwise, it is determined that the priority for going out the Acceleration Control logic is higher than the temperature control logic
Priority.
3. the control method of fuel quantity for gas turbines according to claim 2, which is characterized in that the judgement institute
It states temperature control logic and whether the Acceleration Control logic is effective, comprising:
Judge whether the delivery temperature of the combustion gas turbine of the gas turbine is greater than preset second exhaust temperature, the connection institute
Whether the acceleration for stating the axis rotation of the combustion gas turbine and compressor of gas turbine is greater than preset second acceleration；
If the delivery temperature of the combustion gas turbine of the gas turbine is greater than the second exhaust temperature, it is determined that go out the temperature control
Logical validity processed, otherwise, it is determined that the temperature control logic is invalid out, if the combustion gas turbine of the connection gas turbine
The acceleration rotated with the axis of compressor is greater than second acceleration, it is determined that go out the Acceleration Control logical validity, it is no
Then, it is determined that it is invalid to go out the Acceleration Control logic；
It is wherein, described to judge whether the shutdown control logic is effective, comprising:
Judge whether the stop botton of the gas turbine is pressed；
If the stop botton of the gas turbine is pressed, it is determined that the shutdown control logic is effective out, otherwise, it is determined that go out institute
It is invalid to state shutdown control logic；
It is described to judge whether pre-set starting control logic is effective, comprising:
Judge whether the start button of the gas turbine is pressed；
If the start button of the gas turbine is pressed, the combustion gas turbine and compressor of the connection gas turbine are judged
The revolving speed of axis whether be less than preset first revolving speed；
If the revolving speed of the axis of the combustion gas turbine and compressor of the connection gas turbine is less than first revolving speed, it is determined that
The starting control logic is effective out, otherwise, it is determined that it is invalid to go out the starting control logic.
4. the control method of fuel quantity for gas turbines according to claim 1, which is characterized in that described according to institute
The control logic of fuel regulation will currently be carried out by, which stating, determines fuel quantity signal, comprising:
If the control logic that currently carry out fuel regulation is the temperature control logic, micro- using closed loop proportional-integral-
Sub-controller calculates temperature according to the delivery temperature of the combustion gas turbine of the gas turbine and the deviation of preset second exhaust temperature
Degree control fuel quantity, alternatively, being made using the closed loop proportional-integral-derivative controller according to the deviation and preset ratio
It is calculated temperature with the product of coefficient and final fuel quantity feedback and the sum of products of preset first order inertial loop and is controlled fuel
Amount；Or
If the control logic that currently carry out fuel regulation is the Acceleration Control logic, the closed loop proportional-is used
Integral-derivative controller according to the acceleration of the axis rotation of the combustion gas turbine and compressor that connect the gas turbine with it is preset
The deviation of second acceleration calculates Acceleration Control fuel quantity, alternatively, using the closed loop proportional-integral-derivative controller root
According to the deviation and the product of preset proportional action coefficient and final fuel quantity feedback and preset first order inertial loop
The sum of products calculates Acceleration Control fuel quantity；Or
If the control logic that currently carry out fuel regulation is the shutdown control logic, according to current fuel quantity and in advance
If reduction rate calculations shut down control fuel quantity；Or
If the control logic that currently carry out fuel regulation is the starting control logic, according to preset fuel quantity warming-up
Value and preset calculating starting control fuel quantity of advancing the speed；Or
If the control logic that currently carry out fuel regulation is the revolving speed control logic, micro- using closed loop proportional-integral-
Sub-controller is according to the revolving speed of the axis for the combustion gas turbine and compressor for connecting gas turbine and the drift gage of preset second revolving speed
It calculates revolving speed and controls fuel quantity, alternatively, being made using closed loop proportional-integral-derivative controller according to the deviation and preset ratio
It is calculated revolving speed with the product of coefficient and final fuel quantity feedback and the sum of products of preset first order inertial loop and is controlled fuel
Amount.
5. a kind of control device of fuel quantity for gas turbines characterized by comprising
First determination unit, for determining that the control that currently carry out fuel regulation is patrolled from pre-set control logic
Volume；Wherein, the pre-set control logic includes: starting control logic, revolving speed control logic, temperature control logic, adds
Speed control logic and shutdown control logic；
Second determination unit, for determining fuel quantity signal according to the control logic that currently carry out fuel regulation,
And the fuel quantity signal is filtered；
Transmission unit, for the filtered fuel quantity signal to be sent to pre-set fuel threshold control module；
First determination unit, comprising:
First judgment sub-unit, for judging whether the temperature control logic and the Acceleration Control logic are effective；
First determines subelement, if being used for the temperature control logic and the Acceleration Control logical validity, described in judgement
Whether the priority of temperature control logic is higher than the priority of the Acceleration Control logic, if the temperature control logic is excellent
First grade is higher than the priority of the Acceleration Control logic, it is determined that going out the temperature control logic is currently to carry out fuel quantity
The control logic of control, otherwise, it is determined that going out the Acceleration Control logic is currently to carry out the control of fuel regulation to patrol
Volume；Or
Second determines subelement, if effective for the temperature control logic, the Acceleration Control logic is invalid, it is determined that goes out
The temperature control logic is the control logic that currently carry out fuel regulation；Or
Third determines subelement, if being used for the Acceleration Control logical validity, the temperature control logic is invalid, it is determined that goes out
The Acceleration Control logic is currently to carry out the control logic of fuel regulation；Or
4th determines subelement, if invalid for the temperature control logic and the Acceleration Control logic, described in judgement
Whether effective control logic is shut down, if the shutdown control logic is effective, it is determined that going out the shutdown control logic is currently to want
The control logic for carrying out fuel regulation, alternatively, judging that the starting control logic is if the shutdown control logic is invalid
It is no effective, if the starting control logic is effective, it is determined that going out the starting control logic is currently to carry out fuel regulation
Control logic, alternatively, if the starting control logic is invalid, it is determined that go out the revolving speed control logic be currently to be fired
The control logic of doses control.
6. the control device of fuel quantity for gas turbines according to claim 5, which is characterized in that described first really
Stator unit, comprising:
First judgment module, delivery temperature and the preset first exhaust temperature of the combustion gas turbine for judging gas turbine it is inclined
Whether difference is greater than the axis rotation of the combustion gas turbine and compressor that connect the gas turbine with the product of preset first quantizing factor
The deviation of the acceleration and preset first acceleration that turn, the product with preset second quantizing factor；
First determining module, if for the delivery temperature of the combustion gas turbine and the deviation of the first exhaust temperature, and it is described
The product of first quantizing factor is greater than the acceleration of the axis rotation of the combustion gas turbine and compressor of the connection gas turbine
And the deviation of first acceleration, the product with second quantizing factor, it is determined that go out the excellent of the temperature control logic
First grade is higher than the priority of the Acceleration Control logic, otherwise, it is determined that the priority for going out the Acceleration Control logic is high
In the priority of the temperature control logic.
7. the control device of fuel quantity for gas turbines according to claim 6, which is characterized in that described first sentences
Disconnected subelement, comprising:
Second judgment module, for judging whether the delivery temperature of combustion gas turbine of the gas turbine is greater than preset second row
Whether temperature degree, the acceleration of the axis rotation of the combustion gas turbine and compressor of the connection gas turbine are greater than preset the
Two acceleration；
Second determining module, if the delivery temperature of the combustion gas turbine for the gas turbine is greater than the second exhaust temperature,
Then determine that the temperature control logic is effective, otherwise, it is determined that the temperature control logic is invalid out, if described in the connection
The acceleration of the axis rotation of the combustion gas turbine and compressor of gas turbine is greater than second acceleration, it is determined that goes out the acceleration
It is effective to spend control logic, otherwise, it is determined that it is invalid to go out the Acceleration Control logic；
Wherein, the described 4th subelement is determined, comprising:
Third judgment module, for judging whether the stop botton of the gas turbine is pressed；
Third determining module, if the stop botton for the gas turbine is pressed, it is determined that going out the shutdown control logic has
Effect, otherwise, it is determined that it is invalid to go out the shutdown control logic；
4th judgment module, for judging whether the start button of the gas turbine is pressed；
5th judgment module judges the connection gas turbine if the start button for the gas turbine is pressed
Combustion gas turbine and the revolving speed of axis of compressor whether be less than preset first revolving speed；
4th determining module, if the revolving speed of the axis of the combustion gas turbine and compressor for the connection gas turbine is less than institute
State the first revolving speed, it is determined that the starting control logic is effective out, otherwise, it is determined that it is invalid to go out the starting control logic.
8. the control device of fuel quantity for gas turbines according to claim 5, which is characterized in that described second really
Order member, comprising:
First computation subunit, if the control logic for currently to carry out fuel regulation is the temperature control logic,
Using closed loop proportional-integral-derivative controller according to the delivery temperature and preset second of the combustion gas turbine of the gas turbine
The deviation of delivery temperature calculates temperature and controls fuel quantity, alternatively, using the closed loop proportional-integral-derivative controller according to institute
State the product of deviation and preset proportional action coefficient and the product of final fuel quantity feedback and preset first order inertial loop
The sum of calculate temperature control fuel quantity；Or
Second computation subunit, if the control logic for currently to carry out fuel regulation is the Acceleration Control logic,
Then using the closed loop proportional-integral-derivative controller according to the axis for the combustion gas turbine and compressor for connecting the gas turbine
The deviation of the acceleration of rotation and preset second acceleration calculates Acceleration Control fuel quantity, alternatively, using the closed loop ratio
Example-integral-derivative controller according to the deviation and the product of preset proportional action coefficient and final fuel quantity feedback and
The sum of products of preset first order inertial loop calculates Acceleration Control fuel quantity；Or
Third computation subunit, if the control logic for currently to carry out fuel regulation is the shutdown control logic,
Control fuel quantity is shut down according to current fuel quantity and preset reduction rate calculations；Or
4th computation subunit, if the control logic for currently to carry out fuel regulation is the starting control logic,
According to preset fuel quantity warming-up value and preset calculating starting control fuel quantity of advancing the speed；Or
5th computation subunit, if the control logic for currently to carry out fuel regulation is the revolving speed control logic,
Using closed loop proportional-integral-derivative controller according to the revolving speed of the combustion gas turbine of connection gas turbine and the axis of compressor and pre-
If the second revolving speed deviation calculate revolving speed control fuel quantity, alternatively, using closed loop proportional-integral-derivative controller according to institute
State the product of deviation and preset proportional action coefficient and the product of final fuel quantity feedback and preset first order inertial loop
The sum of calculate revolving speed control fuel quantity.
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| CN107219873A (en) * | 2016-03-21 | 2017-09-29 | 北京澳尔金石油技术开发有限公司 | A kind of gas turbine turbine exhaust temperature control equipment and method |
| US10302020B2 (en) * | 2016-12-12 | 2019-05-28 | General Electric Company | System and method for controlling a fuel flow to a gas turbine engine |
| CN109976145B (en) * | 2019-04-16 | 2022-03-25 | 新奥能源动力科技（上海）有限公司 | Method for adjusting PID parameters, main controller and storage medium |
| CN110307092B (en) * | 2019-05-31 | 2020-07-28 | 南京航空航天大学 | Active compensation method for high-pressure turbine oil-rich failure of gas turbine engine |
| US11578727B2 (en) | 2020-09-17 | 2023-02-14 | Compressor Controls Llc | Methods and system for control of compressors with both variable speed and guide vanes position |
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Effective date of registration: 20200102 Address after: 102209 Beijing Changping District in the future of the national electric investment group Park in the future science city south of Beijing Patentee after: China United heavy-duty gas turbine technology Co., Ltd. Address before: 100084, Beijing, Haidian District science and Technology Park, Tsinghua Science and technology building, block C, 10 Patentee before: Beijing Huatsing Gas Turbine & IGCC Technology Co., Ltd. |