CN101078374A - Fuel pressure controlling device and controlling method for mini combustion turbine - Google Patents
Fuel pressure controlling device and controlling method for mini combustion turbine Download PDFInfo
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Abstract
The invention relates to a fuel pressure control device of micro gas turbine and the control method. The device comprises DSP TM320LF2407A of TI Co. and the minimum system design, power circuit, signal detection circuit, signal processing circuit, communication processing circuit and driving output circuit. Thereinto, the signal processing circuit, the communication processing circuit and the driving circuit are connected with the DSP respectively. The signal detection circuit is connected with the signal processing circuit and the communication processing circuit is connected with the central control device. The control method of fuel pressure control device comprises initialization, self detection, normal shutdown control, parameter modification and pressure control monitoring on time. The invention is provided with reliability, safety, economic practicality and technology advancement.
Description
Technical field
The invention belongs to the miniature gas turbine technical field, particularly a kind of micro fuel engine fuel pressure control device and controlling method.
Background technique
Miniature gas turbine has important function and strategic importance at aspects such as national economy fields such as following China electric power, power and national security, advanced gas turbine technology is the core key technology in the 21 century energy power system, has great significance for the hi-tech development in national economy such as China's association area such as the energy, electric power, Aeronautics and Astronautics, boats and ships, vehicle, military affairs and the national defense construction.Miniature gas turbine is that the impeller by high speed rotating constitutes, and the energy that fuel combustion is produced is through externally acting and produce the electric energy powering load of turbine.It mainly is made up of compressor, firing chamber, turbine and some generator set, regenerator, basic technical features is to adopt radial flow impeller machinery (inward flow turbine and centrifugal-flow compressor), both impellers are back to back structure on rotor, regenerator is generally efficient plate and fin type, some units also adopt pneumatic bearing, do not need lubricating oil system, this spline structure is simpler.The miniature gas turbine generator set have high efficiency, low noise, in light weight, volume is little, the low pollution and series of advantages such as many integrated dilatations.
Fuel pressure control device is the important component part of miniature gas turbine, and the combustion control device essence that the present invention relates to is not limited to micro computer, but the standard equipment scheme.The micro fuel engine fuel pressure control device is the constant module of fuel pressure that realizes in the fuel reservoir, is the main functional modules of fuel pressure control device.The fuel that gas turbine is called for short the use of combustion machine mainly is divided into two kinds: a kind of is gaseous fuel, mainly is rock gas; Another kind is a liquid fuel, mainly is diesel oil.The fuel that the present invention is directed to is gaseous fuel.Gas fuel pressure control mainly is to keep the fuel pressure in the fuel reservoir constant, and to keep constant be the precondition of the normal operation of gas turbine to pressure in the fuel reservoir.Can not normally start if fuel pressure is fired machine inadequately, also just can't externally do work, and make whole unit be in the paralysis stage; If fuel greater than setup pressure value, can self damage the combustion machine again, when serious major accident can take place.So fuel pressure control is normally come into operation to the combustion machine, and on the acquisition economic benefit, all be an important assurance.The fuel pressure controller product variety is various at present, and control technique adopts programmable controller (PLC) to realize more, belongs to secondary development, and cost is higher, and upgrading is too complicated.Employing DSP digital signal processor (DSP) still is blank as master mode.
In the actual process control and kinetic control system, PID family occupies suitable status, and according to statistics, the PID quasi-controller occupies more than 90% in the industrial control controller.The PID controller has simple in structure, each Control Parameter has tangible physical significance, characteristics easy to adjust, and its algorithm is simple, robustness good and reliability is high, be widely used in being particularly useful for to set up the deterministic control system of mathematical models in process control and the motion control.Yet control system often has non-linear, time and becomes uncertain and can't set up precise math model in the actual industrial production process, therefore adopts conventional PID can not reach ideal control effect.At the scene of actual production, owing to be subjected to the restriction of parameter tuning method complexity, it is bad to utilize conventional PID controller parameter often to adjust simultaneously, and poor performance is very poor to the operation adaptability of fielded system.Along with the control that develops into complex dynamic systems of computer technology and the Intelligent Control Theory new approach of having stopped work.Adopt intelligent control technology, can design intelligent PID and carry out PID intelligence and adjust.Adopt traditional PID control at this device of debugging initial stage, but become when having owing to native system, characteristics such as non-linear, hysteresis quality, adopt traditional PID control to demonstrate drawback, in order to be controlled better effect, the present invention will utilize traditional PID control in conjunction with fuzzy control theory, make this control system have the on-line parameter self-correcting function.Security, the stability of control accuracy and system have further been improved.In theory, device that this device is related and controlling method can become the general controls technology, are applied to the occasion that other need fuel pressure control.
Summary of the invention
At the deficiency that prior art exists, the invention provides a kind of fuel pressure control device and controlling method (this achievement is national high-tech research development plan (" a 863 " plan) problem achievement) of miniature gas turbine.
Fuel Control System comprises upper-position unit, demonstration and communication device, CCU, combustion control device, fuel pressure control device, inversion control device, soft start-up control device, battery management device; Wherein demonstration and communication device link to each other with upper-position unit, CCU respectively, and combustion control device, fuel pressure control device, inversion control device, soft start-up control device, battery management device link to each other, as shown in Figure 1.
The hardware unit that fuel pressure control device relied on comprises fuel compressor, frequency variator, pressure transducer, fuel reservoir, fuel pressure control device, valve W52, valve W53, radiator, filter 1, filter 2, fuel control valve, firing chamber.Wherein fuel pressure control device links to each other with the CAN bus, D/A conversion output control signal control frequency variator in the fuel pressure control device, A/D conversion in the signal input fuel pressure control device that pressure transducer is gathered links to each other, pressure transducer links to each other with fuel reservoir, valve W52 links to each other with filter 1, filter 1 links to each other with fuel compressor, fuel compressor links to each other with radiator, radiator links to each other with fuel reservoir, fuel reservoir links to each other with filter 2, filter 2 links to each other with valve W53, valve W53 and fuel control valve, the CCU of gas turbine links to each other, fuel control valve respectively with the firing chamber, the combustion machine control gear of gas turbine links to each other; As shown in Figure 2.
The present invention be fuel pressure control device hardware unit as shown in Figure 4, comprise DSP digital signal processor TM320LF2407A of TI company and minimum system design thereof, signal deteching circuit, signal processing circuit, communication processing circuit, drive output circuit; Wherein signal processing circuit, communication processing circuit, the electric power circuit of driving link to each other with DSP digital signal processor respectively; Signal deteching circuit links to each other with signal processing circuit, and the communication processing circuit links to each other with CCU;
The minimum system design mainly comprises: extend out the RAM of 128K*16BIT, the EPROM of 128K*16BIT, the EEPROM of 8K*16BIT, logic control circuit, crystal oscillation circuit, reset circuit.
Reset circuit as shown in Figure 5, push-button switch S1 is a normal open switch; One termination 3.3V, the other end is received by capacitor C S1 on the base stage of triode U1, and the collector electrode of U1 links to each other with the input end of phase inverter B, and the output terminal of B links to each other with the input end of phase inverter A, the output terminal output reset signal of A links to each other with the reset terminal of DSP digital signal processor.
The function of input and signal processing circuit is that a testing signal and a signal that detects carry out Shelving, in the A/D converter of supplied with digital signal processor, and sorting unit.Comprise high-precision capturing unit in the DSP digital signal processor, can catch the pulse signal that current vortex sensor sends, converse combustion machine rotating speed.
The communication processing circuit: the communication between gas turbine control device and other each control gear is undertaken by CAN bus and SCI.There is the CAN controller module TMS320LF2407A inside, but must be by the CAN driving chip.We select the chip PCA82C2507T of PHIHLPS company for use, and it is the CAN driving chip of a superior performance, and it is the interface between CAN controller and physical bus, and differential transmission and receiving function to bus are provided.And the device that adopts for the SCI unit is: the RS-232 communication module of DSP itself and external drive MAX-232.
Power module: general+24v voltage, transfer to+5V ,+12V ,-12V uses for system.
Drive output circuit as shown in Figure 6; The data port DB0-DB11 of chip IC 24 and sheet choosing end, write operation end directly link to each other with the I/O mouth of DSP digital signal processor, the pin 20 of IC24 is connected to the reverse input end of amplifier IC23 by resistance R Y19, the output terminal of IC23 is connected to the reverse input end of amplifier IC30A by resistance R Y2, the output terminal of IC30A is connected to the base stage of triode U2 by resistance R Y4, the collector electrode of U2 links to each other with the base stage of U3, and the collector electrode of U3 is by resistance R Y7 output driving current.
In the gas turbine fuel control pressurer system, as controlled variable, measure accurately because gas flow is very difficult, so be not suitable for gas flow is controlled accurately with gas discharge.In this control system,, adopted the flow of controlling rock gas by the aperture of control fuel control valve indirectly in order to obtain that gas discharge is controlled accurately.
Fig. 3 is fuel flow rate control schematic representation, and the rock gas in the fuel reservoir enters the firing chamber through filter by fuel control valve, thereby provides fuel to the firing chamber.Gas pressure in the fuel reservoir is P, and the gas pressure in the firing chamber is P ', and the aperture of fuel control valve is θ.P1 and P2 are respectively the force value before and after the filter, if the too big explanation plugged filter of the pressure difference of front and back is sent alarm signal and handled, emergency shutdown.
Speed when rock gas flows through fuel control valve is v, and the pressure difference before and after the flow velocity v of rock gas and the modulating valve has following relation:
v＝k*(P-P′)＝k*ΔP (1)
In the formula, k is a constant, and Δ P is the gas pressure difference before and after the fuel control valve, and P is the pressure in the fuel reservoir, and P ' is an internal pressure of combustion chamber.
Then the pass of the aperture of the flow of rock gas and modulating valve is:
U＝v*θ＝k*(P-P′)*θ＝k*ΔP*θ (2)
When gas turbine was in proper functioning, the gas pressure in the firing chamber remained unchanged substantially, was with constant.If can keep the gas pressure in the fuel reservoir constant, then the pressure difference before and after the modulating valve is a steady state value.At this moment, formula (2) can be reduced to:
U＝K*θ (3)
In the formula: K=k* (P-P ')=k* Δ P is a constant.
By above reasoning as can be seen, the flow of controlling rock gas by the aperture of regulating the control fuel control valve indirectly should be reasonably in theory, so we can accurately control flow fuel with the aperture of adjusting fuel control valve.
The precondition that formula (3) is set up is that the gas pressure difference before and after the fuel control valve is constant, and this just requires must guarantee that the gas pressure in the fuel reservoir is constant when the gas turbine smooth running.Otherwise formula (3) will no longer be set up, and can't realize accurately controlling by the aperture of adjusting modulating valve the control purpose of flow fuel.
Therefore, keeping gas pressure in the fuel reservoir constant is the precondition that guarantees gas turbine stable operation.The control accuracy of fuel pressure control system has determined the control performance of gas turbine.
Increment type PID control is adopted in the system design of miniature gas turbine fuel pressure.In the debug phase, use the requirement that conventional PID control can satisfy control system, reach the scope of stablizing defined.But, because the action meeting of fuel valve brings interference to system, also have some High-frequency Interference, all can make the bad stability of system.So want to make the system stability performance better, need to add some other control algorithm, carry out control to control pressurer system, make system works more stable, so under the control action of common pid, added FUZZY ALGORITHMS FOR CONTROL, like this, it will be appreciated that after adding FUZZY ALGORITHMS FOR CONTROL that what the control effect obviously will be good than in the past is many by emulation.
In control procedure, many controlled devices are along with variation and the influence disturbed, the structure of object parameters changes, because operator's experience is limited, parameter is difficult for accurately describing, various semaphores and evaluation index are difficult for quantificational expression in the control procedure, fuzzy theory is the effective way that addresses this problem, so people use the basic theories and the method for fuzzy mathematics, the condition of rule, operation are represented with fuzzy set the utilization fuzzy reasoning can be realized the best adjustment to pid parameter automatically.
Pid parameter is fuzzy to be that a kind of Fuzzy Set Theory of using on the basis of conventional PID regulator is set up parameter K p from the controller of adjusting, Ki, and Kd and absolute value of the bias | E| and deviation change absolute value | the binary continuous function between Ec| closes and is:
And according to different | E| and | Ec| online self-tuning parameter K p, Ki, Kd.From top formula as can be seen fuzzy controller be with Error Absolute Value | E| and error rate absolute value | Ec| is as input, satisfy different constantly | E| and | Ec| to PID from the requirement [3] of adjusting.PID is fuzzy to be to find out Kp from adjusting, Ki, three parameters of Kd and | E| and | the fuzzy relation between the Ec|, according to fuzzy control principle to Kp, Ki, three parameters of Kd are carried out online modification, and are different to satisfy | E| with | to the different requirements of Control Parameter, make controlled device have good static and dynamic performance during Ec|.Figure 7 shows that fuzzy controller control block diagram.
This paper adopts the fuzzy domain of seven segmentations to describe the fuzzy subset, and general note is done:
E={NB, NM, NS, ZE, PS, PM, PB}, its implication is " negative big ", " negative little ", " in negative ", " zero ", " just little ", " center ", " honest ".If E, Ec and Ki, the equal Normal Distribution of Ki, Kd can draw each fuzzy subset's degree of membership.Deviation E and deviation variation rate Ec and output quantity are quantized in the zone of (3,3), its membership function curve as shown in Figure 8, the fuzzy control core is to set up suitable fuzzy reasoning table, the design experiences of setting up rule list and being according to the designer designs.
System work process is as follows: gaseous fuel enters from fuel inlet, by fuel compressor compression boost pressure, gaseous fuel after the pressurization enters fuel reservoir by filter 1 filtration and deposits, the effect of filter is with the contaminant filter in the gaseous fuel, prevents that solid impurity from stopping up fuel nozzle.The external pressure transducer of fuel reservoir, pressure transducer carries out force samples, sampled value is carried out delivering to fuel pressure control device after the analog-to-digital conversion, fuel pressure control device is according to the pressure control algorithm of programming, with force samples value and pressure set points is input quantity, calculate controlled quentity controlled variable, thereby control the rotating speed of fuel compressor, reach the purpose of pilot pressure.
During the operation of combustion machine, fuel pressure control device carries out on-line identification to the force samples parameter, and control in real time.Fuel pressure control device adopts assembler language to programme, and is divided into initialization and self check, orderly closedown control, parameter modification and pressure control and monitors 5 modules in real time.
1. initialization module is worked according to the following steps, as shown in figure 11;
(1), the init state register, system control register;
(2), watchdog reset;
(3), initialization section background register ARx optionally;
(4), CAN bus, the initialization of adc data modular converter;
(5), event manager module initialization (this module is mainly used in output of timing ratio), general purpose timer control register initialization (way of output such as comparison terminal, cycle terminal and the definition of terminal trigger event, counting mode, timer enable quiescing), the general purpose timer initial value design, the comparand register initial value design, the period register parameter is set;
(6), the working method of part I/O mouth sets,
(7), setting pressure Control Parameter;
(8), be written into a backheat control empirical correlation parameter value;
(9), initialization finishes.
2. selftest module, the fuel pressure control device self check comprises three points: No. 1 valve location Check point of regenerator control, whether No. 2 valve location Check points of regenerator control, pressure control frequency variator normal Check point.These three points all are switching value signals, and after detecting by photoelectric coupled circuit, the switching value data storage is in I/O mouth register.During operation selftest module program, read corresponding information from I/O mouth register earlier, judge whether three Check points are normal, when judgement, make mistakes, judge and identically can think that just it is correct three times for avoiding.If it is unusual which point occurs, take recovery measure, recovering unsuccessful will be transferred to CCU to wrong self-detection result, and request stops, and carries out according to the following steps, as shown in figure 10;
(1), opens up the byte data district;
(2), self-test unit zero clearing;
(3), three detection port data, and deliver to storage and preserve;
(4) judge whether three testing results are consistent; If, execution in step (5); If not, execution in step (6);
(5), self-detection result reaches CCU;
(6), the regulating valve position, return step (3).
3. orderly closedown control module, receive the orderly closedown signal of CCU when fuel pressure control device after, enter the orderly closedown stage.Will close regenerator control during orderly closedown, two valves of control regenerator are opened fully, keep-uping pressure is controlled to be charge in batteries, uploads data simultaneously.After charging finishes, enter and restart state, wait for last the shutdown or starting once more.The orderly closedown control module is to carry out according to the following steps, as shown in figure 12;
(1), shut down, open valve;
(2), put flag bit;
(3), receive CAN signal and judge signal type; If from the charging end signal of CCU, execution in step (4); If show and the data transfer signal of communication device, execution in step (6) then;
(4), close all and interrupt, frequency variator is output as 0;
(5), close frequency variator;
(6), fall the data convey program, analyze and also send the data of asking for;
(7), call serial subroutine, the check valve flag bit returns step (2);
4. parameter modification module, control system enter the parameter modification subroutine module after receiving " parameter modification " order of upper-position unit.At first judge the sequence number be modified parameter, extract the scaled values of relevant parameters then, call relevant parameters transformant program, parameter is converted to hexadecimal system by the value type of binary-coded decimal, be saved in parameter storage unit then according to scaled values.The parameter modification module is to carry out according to the following steps, as shown in figure 13;
(1), beginning;
(2), judge whether mailbox all is in interrupt status, if not, return step (2); If, execution in step (3);
(3), remove all interruptions;
(4), receive the parameter modification instruction that CCU is sent out;
(5), call parameters is revised subroutine;
(6), amended parameter leaves EEPROM in and sends to CCU.
5. the pressure control real-time monitoring module is utilized fuzzy controller control, carries out according to the following steps, as shown in Figure 9;
(1), main program begins, each register of initialization cuts out total interruption;
(2), receive the system that sends by CCU;
(3), judge whether the system signal that is sent by CCU is normal; If, execution in step (4); If not, execution in step (2);
(4), transfer other subroutine, enter automatic operation module;
(5), judge whether frequency variator and valve position normal, and send judged result to CCU; If, execution in step (6); If not, return step (5);
(6), start frequency variator, pressure regulation power closed loop control program;
(7), send normal signal, transmit one group of pressure data to upper-position unit to CCU;
(8), polyphony pressure control program;
(9), judge whether stopping signal is normal; If, execution in step (10); If not, execution in step (8);
(10), shut down.
The present invention has realized that first the DSP digital signal processor TM320LF2407a of use TI company realizes control target, has replenished domestic blank, improves control accuracy and reduces technical costs, is convenient to the update of product simultaneously.On controlling method, use multiple regulating method and fuzzy control fuel pressure, further improved Security, the stability of control accuracy and system.Device that this controller is related and controlling method can become the general controls technology, are applied to the occasion that other need fuel pressure control.Have reliability, Security, economic and practical, Technical advancement.
Description of drawings
Fig. 1 is the gas turbine engine systems structured flowchart;
Fig. 2 is the structured flowchart of fuel pressure control device;
Fig. 3 is fuel flow rate control schematic representation;
Fig. 4 is the hardware block diagram of fuel control unit;
Fig. 5 is the reset circuit schematic diagram;
Fig. 6 is for driving the circuit theory diagrams of output circuit;
The structured flowchart of Fig. 7 fuzzy controller;
Fig. 8 is the membership function curve
Fig. 9 is the software flow pattern of pressure control real-time monitoring module;
Figure 10 is the software flow pattern of selftest module;
Figure 11 is the software flow pattern of initialization module;
Figure 12 is the software flow pattern of orderly closedown control module;
Figure 13 is the software flow pattern of parameter modification module;
Figure 14 is conventional PID control system curve of output;
Figure 15 is fuzzy control curve of output;
Embodiment
The invention will be further described below in conjunction with accompanying drawing;
The present invention be fuel pressure control device hardware unit as shown in Figure 4, comprise DSP digital signal processor TM320LF2407A of TI company and minimum system design thereof, signal deteching circuit, signal processing circuit, communication processing circuit, drive output circuit; Wherein signal processing circuit, communication processing circuit, the electric power circuit of driving link to each other with DSP digital signal processor respectively; Signal deteching circuit links to each other with signal processing circuit, and the communication processing circuit links to each other with CCU;
The minimum system design mainly comprises: extend out the RAM of 128K*16BIT, the EPROM of 128K*16BIT, the EEPROM of 8K*16BIT, logic control circuit, crystal oscillation circuit, reset circuit.
Reset circuit as shown in Figure 5, push-button switch S1 is a normal open switch; One termination 3.3V, the other end is received by capacitor C S1 on the base stage of triode U1, and the collector electrode of U1 links to each other with the input end of phase inverter B, and the output terminal of B links to each other with the input end of phase inverter A, the output terminal output reset signal of A links to each other with the reset terminal of DSP digital signal processor.
The function of input and signal processing circuit is that a testing signal and a signal that detects carry out Shelving, in the A/D converter of supplied with digital signal processor, and sorting unit.Comprise high-precision capturing unit in the DSP digital signal processor, can catch the pulse signal that current vortex sensor sends, converse combustion machine rotating speed.
The communication processing circuit: the communication between gas turbine control device and other each control gear is undertaken by CAN bus and SCI.There is the CAN controller module TMS320LF2407A inside, but must be by the CAN driving chip.We select the chip PCA82C2507T of PHIHLPS company for use, and it is the CAN driving chip of a superior performance, and it is the interface between CAN controller and physical bus, and differential transmission and receiving function to bus are provided.And the device that adopts for the SCI unit is: the RS-232 communication module of DSP itself and external drive MAX-232.
Power module: general+24v voltage, transfer to+5V ,+12V ,-12V uses for system.
Drive output circuit as shown in Figure 6; The data port DB0-DB11 of chip IC 24 and sheet choosing end, write operation end directly link to each other with the I/O mouth of data processing system, the pin 20 of IC24 is connected to the reverse input end of amplifier IC23 by resistance R Y19, the output terminal of IC23 is connected to the reverse input end of amplifier IC30A by resistance R Y2, the output terminal of IC30A is connected to the base stage of triode U2 by resistance R Y4, the collector electrode of U2 links to each other with the base stage of U3, and the collector electrode of U3 is by resistance R Y7 output driving current.
During the operation of combustion machine, fuel pressure control device carries out on-line identification to the force samples parameter, and control in real time.Fuel pressure control device adopts assembler language to programme, and is divided into initialization and self check, orderly closedown control, parameter modification and pressure control and monitors 5 modules in real time.
2. initialization module is worked according to the following steps, as shown in figure 11;
(1), the init state register, system control register;
(2), watchdog reset;
(3), initialization section background register ARx optionally;
(4), CAN bus, the initialization of adc data modular converter;
(5), event manager module initialization (this module is mainly used in output of timing ratio), general purpose timer control register initialization (way of output such as comparison terminal, cycle terminal and the definition of terminal trigger event, counting mode, timer enable quiescing), the general purpose timer initial value design, the comparand register initial value design, the period register parameter is set;
(6), the working method of part I/O mouth sets,
(7), setting pressure Control Parameter;
(8), be written into a backheat control empirical correlation parameter value;
(9), initialization finishes.
2. selftest module, the fuel pressure control device self check comprises three points: No. 1 valve location Check point of regenerator control, whether No. 2 valve location Check points of regenerator control, pressure control frequency variator normal Check point.These three points all are switching value signals, and after detecting by photoelectric coupled circuit, the switching value data storage is in I/O mouth register.During operation selftest module program, read corresponding information from I/O mouth register earlier, judge whether three Check points are normal, when judgement, make mistakes, judge and identically can think that just it is correct three times for avoiding.If it is unusual which point occurs, take recovery measure, recovering unsuccessful will be transferred to CCU to wrong self-detection result, and request stops, and carries out according to the following steps, as shown in figure 10;
(1), opens up the byte data district;
(2), self-test unit zero clearing;
(3), three detection port data, and deliver to storage and preserve;
(4) judge whether three testing results are consistent; If, execution in step (5); If not, execution in step (6);
(5), self-detection result reaches CCU;
(6), the regulating valve position, return step (3).
3. orderly closedown control module, receive the orderly closedown signal of CCU when fuel pressure control device after, enter the orderly closedown stage.Will close regenerator control during orderly closedown, two valves of control regenerator are opened fully, keep-uping pressure is controlled to be charge in batteries, uploads data simultaneously.After charging finishes, enter and restart state, wait for last the shutdown or starting once more.The orderly closedown control module is to carry out according to the following steps, as shown in figure 12;
(1), shut down, open valve;
(2), put flag bit;
(3), receive CAN signal and judge signal type; If from the charging end signal of CCU, execution in step (4); If show and the data transfer signal of communication device, execution in step (6) then;
(4), close all and interrupt, frequency variator is output as 0;
(5), close frequency variator;
(6), fall the data convey program, analyze and also send the data of asking for;
(7), call serial subroutine, the check valve flag bit returns step (2);
4. parameter modification module, control system enter the parameter modification subroutine module after receiving " parameter modification " order of upper-position unit.At first judge the sequence number be modified parameter, extract the scaled values of relevant parameters then, call relevant parameters transformant program, parameter is converted to hexadecimal system by the value type of binary-coded decimal, be saved in parameter storage unit then according to scaled values.The parameter modification module is to carry out according to the following steps, as shown in figure 13;
(1), beginning;
(2), judge whether mailbox all is in interrupt status, if not, return step (2); If, execution in step (3);
(3), remove all interruptions;
(4), receive the parameter modification instruction that CCU is sent out;
(5), call parameters is revised subroutine;
(6), amended parameter leaves EEPROM in and sends to CCU.
5. the pressure control real-time monitoring module is utilized fuzzy controller control, carries out according to the following steps, as shown in Figure 9;
(1), main program begins, each register of initialization cuts out total interruption;
(2), receive the system that sends by CCU;
(3), judge whether the system signal that is sent by CCU is normal; If, execution in step (4); If not, execution in step (2);
(4), transfer other subroutine, enter automatic operation module;
(5), judge whether frequency variator and valve position normal, and send judged result to CCU; If, execution in step (6); If not, return step (5);
(6), start frequency variator, pressure regulation power closed loop control program;
(7), send normal signal, transmit one group of pressure data to upper-position unit to CCU;
(8), polyphony pressure control program;
(9), judge whether stopping signal is normal; If, execution in step (10); If not, execution in step (8);
(10), shut down.
Claims (5)
1, a kind of fuel pressure control device of miniature gas turbine is characterized in that this control gear comprises the employing TI DSP digital signal processor TM320LF2407A of company and minimum system design, power circuit, signal deteching circuit, signal processing circuit, communication processing circuit, drives output circuit; Wherein signal processing circuit, communication processing circuit, drive circuit, link to each other with DSP digital signal processor respectively; Signal deteching circuit links to each other with signal processing circuit, and the communication processing circuit links to each other with CCU.
2, the controlling method of the fuel pressure control device of the described miniature gas turbine of claim 1 is characterized in that this controlling method comprises that initialization, self check, orderly closedown control, parameter modification and pressure control monitor 5 modules in real time.
3, the controlling method of the fuel pressure control device of miniature gas turbine according to claim 2 is characterized in that described initialization module, carries out according to the following steps:
(1), the init state register, system control register;
(2), watchdog reset;
(3), initialization section background register ARx optionally;
(4), CAN bus, the initialization of adc data modular converter;
(5), the event manager module initialization, the initialization of general purpose timer control register, the general purpose timer initial value design, the comparand register initial value design, the period register parameter is set;
(6), the working method of part I/O mouth sets,
(7), setting pressure Control Parameter;
(8), be written into each parameter value of backheat control empirical correlation;
(9), initialization finishes.
4, the controlling method of the fuel pressure control device of miniature gas turbine according to claim 2 is characterized in that described selftest module, carries out according to the following steps:
(1), opens up the byte data district;
(2), self-test unit zero clearing;
(3), three detection port data, and deliver to storage and preserve;
(4) judge whether three testing results are consistent; If, execution in step (5); If not, execution in step (6);
(5), self-detection result reaches CCU;
(6), the regulating valve position, return step (3).
5, the controlling method of the fuel pressure control device of miniature gas turbine according to claim 2 is characterized in that described orderly closedown control module, carries out according to the following steps:
(1), shut down, open valve;
(2), put flag bit;
(3), receive CAN signal and judge signal type; If from the charging end signal of CCU, execution in step (4); If show and the data transfer signal of communication device, execution in step (6) then;
(4), close all and interrupt, frequency variator is output as 0;
(5), close frequency variator;
(6), fall the data convey program, analyze and also send the data of asking for;
(7), call serial subroutine, the check valve flag bit returns step (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100119684A CN100497904C (en) | 2007-07-05 | 2007-07-05 | Fuel pressure controlling device and controlling method for mini combustion turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100119684A CN100497904C (en) | 2007-07-05 | 2007-07-05 | Fuel pressure controlling device and controlling method for mini combustion turbine |
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| CN101078374A true CN101078374A (en) | 2007-11-28 |
| CN100497904C CN100497904C (en) | 2009-06-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2007100119684A Expired - Fee Related CN100497904C (en) | 2007-07-05 | 2007-07-05 | Fuel pressure controlling device and controlling method for mini combustion turbine |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102397611A (en) * | 2010-09-07 | 2012-04-04 | 北京航天长峰股份有限公司 | Anesthesia machine and breathing machine pressure control and adjustment method suitable for different R values and C values |
| CN102720590A (en) * | 2012-07-12 | 2012-10-10 | 株洲南方燃气轮机成套制造安装有限公司 | Starting control method and device of combustion gas turbine |
| CN104763534A (en) * | 2015-02-06 | 2015-07-08 | 中国人民解放军空军工程大学 | Modular combined electric fuel supply and control system |
| CN103114914B (en) * | 2013-02-04 | 2015-10-28 | 哈尔滨东安发动机（集团）有限公司 | The controlling method of miniature gas turbine |
| CN108457753A (en) * | 2018-06-05 | 2018-08-28 | 哈尔滨广瀚燃气轮机有限公司 | A kind of gas turbine fuel valve control |
| CN110685807A (en) * | 2018-07-04 | 2020-01-14 | 普拉特 - 惠特尼加拿大公司 | Method and system for controlling a crossing threshold for determining propeller speed |
| CN111121087A (en) * | 2018-11-01 | 2020-05-08 | 云南航天工业有限公司 | Novel intelligent combustion controller based on CAN bus and control method thereof |
| CN114152992A (en) * | 2021-12-01 | 2022-03-08 | 中国核电工程有限公司 | Passive monitoring method and system for blockage of feed hopper of spent fuel dissolver |
| CN114152992B (en) * | 2021-12-01 | 2024-04-26 | 中国核电工程有限公司 | Passive monitoring method and system for blockage of feed hopper of spent fuel dissolver |
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2007
- 2007-07-05 CN CNB2007100119684A patent/CN100497904C/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102397611A (en) * | 2010-09-07 | 2012-04-04 | 北京航天长峰股份有限公司 | Anesthesia machine and breathing machine pressure control and adjustment method suitable for different R values and C values |
| CN102720590A (en) * | 2012-07-12 | 2012-10-10 | 株洲南方燃气轮机成套制造安装有限公司 | Starting control method and device of combustion gas turbine |
| CN102720590B (en) * | 2012-07-12 | 2014-06-11 | 株洲南方燃气轮机成套制造安装有限公司 | Starting control method and device of combustion gas turbine |
| CN103114914B (en) * | 2013-02-04 | 2015-10-28 | 哈尔滨东安发动机（集团）有限公司 | The controlling method of miniature gas turbine |
| CN104763534A (en) * | 2015-02-06 | 2015-07-08 | 中国人民解放军空军工程大学 | Modular combined electric fuel supply and control system |
| CN108457753A (en) * | 2018-06-05 | 2018-08-28 | 哈尔滨广瀚燃气轮机有限公司 | A kind of gas turbine fuel valve control |
| CN110685807A (en) * | 2018-07-04 | 2020-01-14 | 普拉特 - 惠特尼加拿大公司 | Method and system for controlling a crossing threshold for determining propeller speed |
| CN111121087A (en) * | 2018-11-01 | 2020-05-08 | 云南航天工业有限公司 | Novel intelligent combustion controller based on CAN bus and control method thereof |
| CN111121087B (en) * | 2018-11-01 | 2024-04-30 | 云南航天工业有限公司 | Novel intelligent combustion controller based on CAN bus and control method thereof |
| CN114152992A (en) * | 2021-12-01 | 2022-03-08 | 中国核电工程有限公司 | Passive monitoring method and system for blockage of feed hopper of spent fuel dissolver |
| CN114152992B (en) * | 2021-12-01 | 2024-04-26 | 中国核电工程有限公司 | Passive monitoring method and system for blockage of feed hopper of spent fuel dissolver |
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