CN110345506A - A kind of coal-burning boiler unit fast frequency hopping method and apparatus - Google Patents
A kind of coal-burning boiler unit fast frequency hopping method and apparatus Download PDFInfo
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Abstract
This application discloses a kind of coal-burning boiler unit fast frequency hopping method and apparatus, by the combustion characteristics function and furnace coal weight-coal dust magnitude relation curve that obtain coal-burning boiler unit, it is instructed according to the AGC with target load, the revolving speed of coordinated control dynamic separator, coal pulverizer ventilation quantity and furnace coal weight, so that the practical as-fired coal powder variable quantity of coal-burning boiler unit is quickly tracked into furnace coal dust variable quantity target value, it can be in the case where guaranteeing boiler combustion and steam temperature wall temperature stable condition, realize the quickly accurately response AGC instruction of coal-burning boiler unit, it is not high to solve Changing load-acceleration existing for traditional coordinated control optimisation technique, the problems such as degree of regulation is low, compensate for the deficiency of battery energy storage system, it can be good at the frequency modulation performance requirement for meeting power grid to coal unit.
Description
Technical field
This application involves coal-burning boiler technical field more particularly to a kind of coal-burning boiler unit fast frequency hopping method and dresses
It sets.
Background technique
Requirement with power grid to power supply quality is gradually increased, and the coal-burning boiler unit in Grid is needed to participate in frequency modulation
Ancillary service requires coal-burning boiler unit to make quick load responding, to guarantee the stabilization of mains frequency.
In order to meet requirement of the power grid to frequency, and income is obtained in the allotment ancillary service that power grid is released, increasingly
More coal-burning power plants starts investment construction battery energy storage system, by the charge and discharge of battery energy storage system, it can be achieved that coal unit
Small-scale quick variation output power, realization quickly adjust the short time of mains frequency.But battery energy storage system can not
The control characteristic of unit itself is improved, and the cost of investment of battery energy storage system is larger, battery recycling processing is difficult.There are also one kind to mention
The method of high coal-burning boiler unit frequency modulation performance is the coordinated control optimized to traditional coordinated control mode, but traditional
Optimisation technique there is a problem of two it is main, one is to increase to coal dust power output to coal power output to increase that there are biggish delay, limits
Changing load-acceleration is made, the other is the coal amount variation of the coal of different calorific values passes through pressure under same varying duty amplitude
PID/feedback control, also limit Changing load-acceleration, and the presence of both of these problems so that traditional coordinated control optimizes skill
Art, which needs substantially to cross, transfers to improve Changing load-acceleration, causes the fluctuation of Stream temperature and main vapour pressure, or even overtemperature and superpressure.
Therefore, it makes up the deficiency of battery energy storage system and improves Changing load-acceleration existing for traditional coordinated control optimisation technique
The not high defect low with degree of regulation is those skilled in the art's technical problem urgently to be resolved.
Summary of the invention
The embodiment of the present application provides a kind of coal-burning boiler unit fast frequency hopping method and apparatus, for making up battery energy storage
The not high defect low with degree of regulation of Changing load-acceleration existing for the traditional coordinated control optimisation technique of insufficient and improvement of system.
In view of this, the application first aspect provides a kind of coal-burning boiler unit fast frequency hopping method, including following step
It is rapid:
101, combustion characteristics function is obtained according to the unit load of coal-burning boiler unit-input thermal relationship, and according to institute
The real-time running data for stating coal-burning boiler unit calculates input heat and as-fired coal calorific value, the real-time running data include unit
Power and furnace coal weight；
102, the furnace coal weight-coal dust magnitude relation curve for obtaining the coal-burning boiler unit, according to the furnace coal weight-coal
Powder magnitude relation curve calculates as-fired coal powder amount and coal dust calorific value；
103, the AGC instruction of target load, the unit being calculated according to the target load and current loads are got
Load changing rate calculates input heat gradient；
104, as-fired coal powder variable quantity target value is obtained according to the input heat gradient, adjusts turning for dynamic separator
Speed, coal pulverizer ventilation quantity and furnace coal weight so that the practical as-fired coal powder variable quantity of the coal-burning boiler unit and it is described enter furnace
Coal dust variable quantity target value is equal.
Preferably, step 101 specifically includes:
1011, when boiler coal quality is stablized, boiler controller system load change test is carried out to coal-burning boiler unit, it is negative to obtain unit
Lotus-input thermal relationship curve；
1012, differential is carried out to the unit load-input thermal relationship curve, obtains the combustion characteristics function of unit
f1, the combustion characteristics function f1Expression formula are as follows:
ΔQnet=f1(Δ P),
Wherein, Δ QnetFor the input heat gradient for entering boiler, Δ P is the load changing rate of boiler controller system；
1013, the real-time running data for obtaining the coal-burning boiler unit, according to the unit load-input thermal relationship
Curve calculates input heat and as-fired coal calorific value.
Preferably, step 102 specifically includes:
1021, it obtains as-fired coal powder and carries out moisture chemical examination, analyzed, generated into furnace according to Operational Parameters in Powder Making System and data
Coal amount-coal dust magnitude relation curve f2, the furnace coal weight-coal dust magnitude relation curve f2Expression formula are as follows:
Gmf=f2(Gm),
Wherein, GmfFor as-fired coal powder amount, GmFor furnace coal weight.
1022, according to the furnace coal weight-coal dust magnitude relation curve f2As-fired coal powder amount and coal dust calorific value are calculated, institute is calculated
State the expression formula of coal dust calorific value are as follows:
Qmf=Gm×Qnet,ar/Gmf,
Wherein, QmfFor coal dust calorific value, Qnet,arFor as-fired coal calorific value.
Preferably, step 103 specifically includes:
1031, AGC instruction is obtained, target load is obtained；
1032, unit load changing rate is calculated according to the target load and current loads；
1033, according to the unit load change rate and the combustion characteristics function f1Calculate input heat gradient.
Preferably, step 104 specifically includes:
1041, according to the input heat gradient and the coal dust calorific value calculation as-fired coal powder variable quantity target value Δ
Gmf,SP, the as-fired coal powder variable quantity target value Δ Gmf,SPCalculation formula are as follows:
1042, the revolving speed of dynamic separator is adjusted according to the dynamic separator characterisitic function got, and/or adjusts coal-grinding
Machine ventilation quantity controls the first practical as-fired coal powder variation delta Gmf,pv1, adjust the practical as-fired coal powder of furnace coal weight control second and become
Change amountSo that the first practical as-fired coal powder variation delta Gmf,pv1With the described second practical as-fired coal powder variable quantitySummation be equal to the as-fired coal powder variable quantity target value Δ Gmf,SP；
The f of the dynamic separator characterisitic function3Are as follows:
ΔM1mf=f3 (Δ S),
Wherein, Δ S is dynamic separator rotation speed change amount, Δ M1mfFor as-fired coal powder variable quantity；
The first practical as-fired coal powder variation delta Gmf,pv1With the revolving speed of dynamic separator and the pass of coal pulverizer ventilation quantity
It is expression formula are as follows:
The second practical as-fired coal powder variable quantityAccording to the furnace coal weight-coal dust magnitude relation curve f2With
The furnace coal weight variable quantity of unit obtains, wherein the furnace coal weight variable quantityExpression formula are as follows:
The application second aspect provides a kind of coal-burning boiler unit fast frequency hopping device, comprises the following modules:
First processing module, for obtaining combustion characteristics according to unit load-input thermal relationship of coal-burning boiler unit
Function, and input heat and as-fired coal calorific value, the real-time fortune are calculated according to the real-time running data of the coal-burning boiler unit
Row data include the power of the assembling unit and furnace coal weight；
Second processing module, for obtaining furnace coal weight-coal dust magnitude relation curve of the coal-burning boiler unit, according to institute
It states furnace coal weight-coal dust magnitude relation curve and calculates as-fired coal powder amount and coal dust calorific value；
Third processing module, the AGC for getting target load is instructed, according to the target load and current loads meter
Obtained unit load change rate calculates input heat gradient；
Coordinating control module is adjusted for obtaining as-fired coal powder variable quantity target value according to the input heat gradient
Revolving speed, coal pulverizer ventilation quantity and the furnace coal weight of dynamic separator, so that the practical as-fired coal powder of the coal-burning boiler unit becomes
Change amount is equal with the as-fired coal powder variable quantity target value.
Preferably, the first processing module specifically includes:
First acquisition submodule, for carrying out boiler controller system varying duty to coal-burning boiler unit when boiler coal quality is stablized
Test, obtains unit load-input thermal relationship curve；
Differential submodule obtains the burning of unit for carrying out differential to the unit load-input thermal relationship curve
Characterisitic function f1, the combustion characteristics function f1Expression formula are as follows:
ΔQnet=f1(Δ P),
Wherein, Δ QnetFor the input heat gradient for entering boiler, Δ P is the load changing rate of boiler controller system；
First computational submodule, it is negative according to the unit for obtaining the real-time running data of the coal-burning boiler unit
Lotus-input thermal relationship curve calculates input heat and as-fired coal calorific value.
Preferably, the Second processing module specifically includes:
Second acquisition submodule carries out moisture chemical examination for obtaining as-fired coal powder, according to Operational Parameters in Powder Making System sum number
According to analysis, furnace coal weight-coal dust magnitude relation curve f is generated2, the furnace coal weight-coal dust magnitude relation curve f2Expression formula are as follows:
Gmf=f2(Gm),
Wherein, GmfFor as-fired coal powder amount, GmFor furnace coal weight.
Second computational submodule, for according to the furnace coal weight-coal dust magnitude relation curve f2Calculate as-fired coal powder amount and
Coal dust calorific value calculates the expression formula of the coal dust calorific value are as follows:
Qmf=Gm×Qnet,ar/Gmf,
Wherein, QmfFor coal dust calorific value, Qnet,arFor as-fired coal calorific value.
Preferably, the third processing module specifically includes:
Third acquisition submodule obtains target load for obtaining AGC instruction；
Third computational submodule, for calculating unit load changing rate according to the target load and current loads；
4th computational submodule, for according to the unit load change rate and the combustion characteristics function f1Calculate input
Heat gradient.
Preferably, the coordinating control module specifically includes:
First control submodule, for being become according to the input heat gradient and the coal dust calorific value calculation as-fired coal powder
Change amount target value Δ Gmf,SP, the as-fired coal powder variable quantity target value Δ Gmf,SPCalculation formula are as follows:
Second control submodule, for adjusting turning for dynamic separator according to the dynamic separator characterisitic function got
Speed, and/or adjust coal pulverizer ventilation quantity and control the first practical as-fired coal powder variation delta Gmf,pv1, adjust furnace coal weight control second
Practical as-fired coal powder variable quantitySo that the first practical as-fired coal powder variation delta Gmf,pv1It is practical with described second
As-fired coal powder variable quantitySummation be equal to the as-fired coal powder variable quantity target value Δ Gmf,SP；
The f of the dynamic separator characterisitic function3Are as follows:
ΔM1mf=f3 (Δ S),
Wherein, Δ S is dynamic separator rotation speed change amount, Δ M1mfFor as-fired coal powder variable quantity；
The first practical as-fired coal powder variation delta Gmf,pv1With the revolving speed of dynamic separator and the pass of coal pulverizer ventilation quantity
It is expression formula are as follows:
Wherein, Q is coal pulverizer ventilation quantity；
The second practical as-fired coal powder variable quantityAccording to the furnace coal weight-coal dust magnitude relation curve f2And machine
The furnace coal weight variable quantity of group obtains, wherein the furnace coal weight variable quantityExpression formula are as follows:
As can be seen from the above technical solutions, the embodiment of the present application has the advantage that
In the application, a kind of coal-burning boiler unit fast frequency hopping method is provided, comprising the following steps: 101, according to fire coal
The unit load of boiler controller system-input thermal relationship obtains combustion characteristics function, and according to the real time execution of coal-burning boiler unit
Data calculate input heat and as-fired coal calorific value, real-time running data include the power of the assembling unit and furnace coal weight；102, it obtains coal-fired
The furnace coal weight of boiler controller system-coal dust magnitude relation curve, according to furnace coal weight-coal dust magnitude relation curve calculate as-fired coal powder amount and
Coal dust calorific value；103, the AGC instruction of target load, the unit load being calculated according to target load and current loads are got
Change rate calculates input heat gradient；104, as-fired coal powder variable quantity target value is obtained according to input heat gradient, adjusted
Revolving speed, coal pulverizer ventilation quantity and the furnace coal weight of dynamic separator, so that the practical as-fired coal powder variable quantity of coal-burning boiler unit
It is equal with as-fired coal powder variable quantity target value.Coal-burning boiler unit fast frequency hopping method provided herein is fired by obtaining
The combustion characteristics function and furnace coal weight of coal burning boiler unit-coal dust magnitude relation curve are instructed according to the AGC with target load,
Revolving speed, coal pulverizer ventilation quantity and the furnace coal weight of coordinated control dynamic separator, so that the practical as-fired coal of coal-burning boiler unit
Powder variable quantity is quickly tracked into furnace coal dust variable quantity target value, can in the case where guaranteeing boiler combustion and steam temperature wall temperature stable condition,
It realizes the quickly accurately response AGC instruction of coal-burning boiler unit, solves the speed of varying duty existing for traditional coordinated control optimisation technique
The problems such as rate is not high, degree of regulation is low compensates for the deficiency of battery energy storage system, can be good at meeting power grid to coal unit
Frequency modulation performance requirement.
Detailed description of the invention
Fig. 1 is a kind of process signal of one embodiment of coal-burning boiler unit fast frequency hopping method provided by the present application
Figure；
Fig. 2 is a kind of process signal of another embodiment of coal-burning boiler unit fast frequency hopping method provided by the present application
Figure；
Fig. 3 is a kind of structural representation of one embodiment of coal-burning boiler unit fast frequency hopping device provided by the present application
Figure.
Specific embodiment
In order to make those skilled in the art more fully understand application scheme, below in conjunction in the embodiment of the present application
Attached drawing, the technical scheme in the embodiment of the application is clearly and completely described, it is clear that described embodiment is only this
Apply for a part of the embodiment, instead of all the embodiments.Based on the embodiment in the application, those of ordinary skill in the art exist
Every other embodiment obtained under the premise of creative work is not made, shall fall in the protection scope of this application.
In order to make it easy to understand, referring to Fig. 1, one of a kind of coal-burning boiler unit fast frequency hopping method provided by the present application
Embodiment, comprising:
Step 101 obtains combustion characteristics function, and root according to unit load-input thermal relationship of coal-burning boiler unit
Input heat is calculated according to the real-time running data of coal-burning boiler unit and as-fired coal calorific value, real-time running data include the power of the assembling unit
And furnace coal weight.
Step 102, the furnace coal weight-coal dust magnitude relation curve for obtaining coal-burning boiler unit, according to furnace coal weight-coal dust amount
Relation curve calculates as-fired coal powder amount and coal dust calorific value.
Step 103, the AGC instruction for getting target load, the unit being calculated according to target load and current loads
Load changing rate calculates input heat gradient.
Step 104 obtains as-fired coal powder variable quantity target value according to input heat gradient, adjusts turning for dynamic separator
Speed, coal pulverizer ventilation quantity and furnace coal weight, so that the practical as-fired coal powder variable quantity of coal-burning boiler unit and as-fired coal powder change
It is equal to measure target value.
It should be noted that, according to the characteristic of Theory of Combustion and coal-burning boiler unit, passing through test in the embodiment of the present application
And calculation method, boiler controller system is obtained under certain load changing rate, and heat gradient is inputted required for boiler.It obtains first
Unit load-input thermal relationship the curve for taking coal-burning boiler unit, at unit load-input thermal relationship curve
Reason, obtains unit load change rate-input heat gradient relation curve, i.e. combustion characteristics function f1.Coal-fired pot is obtained in real time
The operation data of furnace unit, such as unit load P, furnace coal weight Gm.Then according to unit load P, furnace coal weight GmIt is negative with unit
Lotus-input thermal relationship curve calculates input heat QnetWith as-fired coal calorific value Qnet,ar。
Obtain furnace coal weight-coal dust magnitude relation curve f of coal-burning boiler unit2, expression formula Gmf=f2(Gm), GmfFor
As-fired coal powder amount, unit t/h.As-fired coal powder amount and coal dust calorific value, table are calculated according to furnace coal weight-coal dust magnitude relation curve
Up to formula are as follows: Qmf=Gm×Qnet,ar/Gmf。
AGC (Automatic Gain Control, Automatic Generation Control), is the Xiang Jiben in dispatch automated system
Function plays vital effect in terms of guaranteeing frequency quality of power grid and Tie line Power.AGC unit
Two important indicators be regulations speed and degree of regulation, regulations speed refers to the rate of unit response load, and degree of regulation is
Difference after referring to that unit output enters order controlling dead error, between reality and target power output.In the embodiment of the present application, using AGC
Control mode is instructed, the target load of coal-burning boiler unit is obtained, then according to the current of target load and coal-burning boiler unit
Load calculates the difference of the two, unit load change rate Δ P is obtained, then according to combustion characteristics function f1Middle Δ P with enter pot
The input heat gradient Δ Q of furnacenetRelationship calculate input heat gradient.
The key for influencing the rate of change of coal-burning boiler unit load is the burning of boiler, and the key of boiler combustion is
Pulverized coal preparation system, only quickly increases and decreases the coal dust amount into boiler by pulverized coal preparation system, and the adjusting of bonded boiler air quantity is just able to achieve
Therefore, in the embodiment of the present application the fast frequency hopping of coal unit is taken boiler combustion adjustment technology means, is worked as using boiler combustion
Amount quickly variation, to realize boiler controller system quick load change.According to input heat gradient Δ QnetWith coal dust calorific value QmfIt calculates
Obtain as-fired coal powder variable quantity target value Δ Gmf,SP:
Since the as-fired coal powder amount that furnace coal weight change transitions are equivalent changes there are biggish delay, rung to improve AGC
Answer speed, actual as-fired coal powder variable quantity, the practical as-fired coal powder variation delta G in the embodiment of the present applicationmf,pvIncluding first
Practical as-fired coal powder variation delta Gmf,pv1With the second practical as-fired coal powder variable quantityTwo parts, first actually enters furnace
Coal dust variation delta Gmf,pv1By two ways to practical as-fired coal powder variation delta Gmf,pvIt is preconditioned, one is to pass through
Dynamic separator revolving speed is adjusted, the other is by adjusting coal pulverizer ventilation quantity, dynamic separator revolving speed and as-fired coal powder change
The relationship of amount can use dynamic separator characterisitic function f3It is expressed as Δ M1mf=f3 (Δ S), wherein Δ S turns for dynamic separator
Fast variable quantity, unit %, Δ M1mfFor as-fired coal powder variable quantity, unit t/h.First practical as-fired coal powder variation
Measure Δ Gmf,pv1With the relationship between adjusting dynamic separator revolving speed, adjusting coal pulverizer ventilation quantity are as follows:
Wherein, Q is coal pulverizer ventilation quantity, and unit t/h, dQ are coal pulverizer ventilation quantity variable quantity, unit t/h.
Second practical as-fired coal powder variable quantityAccording to furnace coal weight-coal dust magnitude relation curve f2It adjusts.
Due to preconditioning hold time it is shorter, it is pre-adjusted simultaneously, need according to input heat gradient amount Δ QnetWith
As-fired coal calorific value Qnet,ar, the furnace coal weight variable quantity of unit is calculated
Then according to furnace coal weight-coal dust magnitude relation curve f2, obtain the second practical as-fired coal powder variable quantity of unit
Revolving speed, coal pulverizer ventilation quantity and the furnace coal weight for adjusting dynamic separator, so that coal-burning boiler unit actually enters
Furnace coal dust variable quantity is equal with as-fired coal powder variable quantity target value, i.e.,
By the quantitative calculating to boiler combustion equivalent, it can be achieved that the accurate control of unit load, avoided reconciliation less stress；
The coordinated control that is adjusted by dynamic separator rotational speed regulation and coal pulverizer ventilation quantity, it can be achieved that unit load quick adjusting,
AGC rate is greatly improved, the load responding time is reduced.
The coal-burning boiler unit fast frequency hopping method provided in the embodiment of the present application, by the combustion for obtaining coal-burning boiler unit
Characterisitic function and furnace coal weight-coal dust magnitude relation curve are burnt, is instructed according to the AGC with target load, coordinated control dynamic point
Revolving speed, coal pulverizer ventilation quantity and furnace coal weight from device so that the practical as-fired coal powder variable quantity of coal-burning boiler unit quickly with
Track as-fired coal powder variable quantity target value can realize coal-burning boiler machine in the case where guaranteeing boiler combustion and steam temperature wall temperature stable condition
Group quickly accurate response AGC instruction, solves that Changing load-acceleration existing for traditional coordinated control optimisation technique is high, degree of regulation
The problems such as low, compensates for the deficiency of battery energy storage system, can be good at the frequency modulation performance requirement for meeting power grid to coal unit.
In order to make it easy to understand, referring to Fig. 3, providing a kind of coal-burning boiler unit fast frequency hopping side in the embodiment of the present application
Another embodiment of method, comprising:
Step 201, boiler coal quality stablize when, to coal-burning boiler unit carry out boiler controller system load change test, obtain machine
Group load-input thermal relationship curve.
Step 202 carries out differential to unit load-input thermal relationship curve, obtains the combustion characteristics function f of unit1,
Combustion characteristics function f1Expression formula are as follows:
ΔQnet=f1(Δ P),
Wherein, Δ QnetFor the input heat gradient for entering boiler, Δ P is the load changing rate of boiler controller system.
Step 203, the real-time running data for obtaining coal-burning boiler unit, according to unit load-input thermal relationship curve
Calculate input heat and as-fired coal calorific value.
Step 204 obtains the progress moisture chemical examination of as-fired coal powder, is analyzed, is generated according to Operational Parameters in Powder Making System and data
Furnace coal weight-coal dust magnitude relation curve f2, furnace coal weight-coal dust magnitude relation curve f2Expression formula are as follows:
Gmf=f2(Gm),
Wherein, GmfFor as-fired coal powder amount, GmFor furnace coal weight.
Step 205, according to furnace coal weight-coal dust magnitude relation curve f2As-fired coal powder amount and coal dust calorific value are calculated, coal is calculated
The expression formula of powder calorific value are as follows:
Qmf=Gm×Qnet,ar/Gmf,
Wherein, QmfFor coal dust calorific value, Qnet,arFor as-fired coal calorific value.
Step 206 obtains AGC instruction, obtains target load.
Step 207 calculates unit load changing rate according to target load and current loads.
Step 208, according to unit load change rate and combustion characteristics function f1Calculate input heat gradient.
Step 209, according to input heat gradient and coal dust calorific value calculation as-fired coal powder variable quantity target value Δ Gmf,SP, enter
Furnace coal dust variable quantity target value Δ Gmf,SPCalculation formula are as follows:
Step 210, the revolving speed that dynamic separator is adjusted according to the dynamic separator characterisitic function got, and/or adjust mill
Coal machine ventilation quantity controls the first practical as-fired coal powder variation delta Gmf,pv1, adjust furnace coal weight and control the second practical as-fired coal powder
Variable quantitySo that the first practical as-fired coal powder variation delta Gmf,pv1With the second practical as-fired coal powder variable quantitySummation be equal to as-fired coal powder variable quantity target value Δ Gmf,SP；
The f of dynamic separator characterisitic function3Are as follows:
ΔM1mf=f3 (Δ S),
Wherein, Δ S is dynamic separator rotation speed change amount, Δ M1mfFor as-fired coal powder variable quantity；
First practical as-fired coal powder variation delta Gmf,pv1With the revolving speed of dynamic separator and the relation table of coal pulverizer ventilation quantity
Up to formula are as follows:
Second practical as-fired coal powder variable quantityAccording to furnace coal weight-coal dust magnitude relation curve f2Enter furnace with unit
The variation of coal amount measures, wherein furnace coal weight variable quantityExpression formula are as follows:
It should be noted that carrying out the examination of boiler controller system varying duty when boiler coal quality is stablized first in the embodiment of the present application
It tests, obtains boiler controller system load-input thermal relationship curve f1.1:
Qnet=f1.1(P),
In formula: P is unit load, MW；QnetTo input heat, kJ/kg；
Qnet=Gm×Qnet,ar,
GmFor furnace coal weight, t/h；Qnet,arFor as-fired coal calorific value, kJ/kg.
Then to boiler controller system load-input thermal relationship curve f1.1Differential is carried out, it is defeated to obtain unit load change rate-
Enter heat gradient relation curve, i.e. combustion characteristics function f1。
The progress moisture chemical examination of furnace coal dust is taken into be calculated according to Operational Parameters in Powder Making System and big data analysis into furnace
Coal amount-coal dust magnitude relation curve f2。
Dynamic separator rotation speed change dynamic test is carried out, dynamic separator rotation speed change amount is obtained and coal dust variable quantity closes
It is curve, i.e. dynamic separator characterisitic function f3, it is expressed as Δ M1mf=f3 (Δ S).
Obtaining combustion characteristics function f1, furnace coal weight-coal dust magnitude relation curve f2With dynamic separator characterisitic function f3's
On the basis of, carry out the quick accurate control of pulverized coal preparation system, control process description are as follows:
Boiler controller system real-time running data is obtained, such as unit load P and furnace coal weight GmDeng according to boiler controller system load-
Input thermal relationship curve f1.1Calculate input heat QnetWith as-fired coal calorific value Qnet,ar, bent according to furnace coal weight-coal dust magnitude relation
Line f2Calculate as-fired coal powder amount GmfWith coal dust calorific value Qmf.Control mode is instructed using AGC, the target for obtaining coal-burning boiler unit is negative
Lotus calculates the difference of the two, obtains unit load change rate then according to the current loads of target load and coal-burning boiler unit
Δ P, then according to combustion characteristics function f1The middle Δ P and input heat gradient Δ Q for entering boilernetRelationship it is defeated to calculate
Enter heat gradient.
The key for influencing the rate of change of coal-burning boiler unit load is the burning of boiler, and the key of boiler combustion is
Pulverized coal preparation system, only quickly increases and decreases the coal dust amount into boiler by pulverized coal preparation system, and the adjusting of bonded boiler air quantity is just able to achieve
Therefore, in the embodiment of the present application the fast frequency hopping of coal unit is taken boiler combustion adjustment technology means, is worked as using boiler combustion
Amount quickly variation, to realize boiler controller system quick load change.According to input heat gradient Δ QnetWith coal dust calorific value QmfIt calculates
Obtain as-fired coal powder variable quantity target value Δ Gmf,SP:
Since the as-fired coal powder amount that furnace coal weight change transitions are equivalent changes there are biggish delay, rung to improve AGC
Answer speed, actual as-fired coal powder variable quantity, the practical as-fired coal powder variation delta G in the embodiment of the present applicationmf,pvIncluding first
Practical as-fired coal powder variation delta Gmf,pv1With the second practical as-fired coal powder variable quantityTwo parts, first actually enters furnace
Coal dust variation delta Gmf,pv1By two ways to practical as-fired coal powder variation delta Gmf,pvIt is preconditioned, one is to pass through
Dynamic separator revolving speed is adjusted, the other is by adjusting coal pulverizer ventilation quantity, dynamic separator revolving speed and as-fired coal powder change
The relationship of amount can use dynamic separator characterisitic function f3It is expressed as Δ M1mf=f3 (Δ S), wherein Δ S turns for dynamic separator
Fast variable quantity, unit %, Δ M1mfFor as-fired coal powder variable quantity, unit t/h.First practical as-fired coal powder variation delta
Gmf,pv1With the relationship between adjusting dynamic separator revolving speed, adjusting coal pulverizer ventilation quantity are as follows:
Wherein, Q is coal pulverizer ventilation quantity, and unit t/h, dQ are coal pulverizer ventilation quantity variable quantity, unit t/h.
Second practical as-fired coal powder variable quantityAccording to furnace coal weight-coal dust magnitude relation curve f2It adjusts.
Due to preconditioning hold time it is shorter, it is pre-adjusted simultaneously, need according to input heat gradient amount Δ QnetWith
As-fired coal calorific value Qnet,ar, the furnace coal weight variation delta G of unit is calculatedm,pv2:
Then according to furnace coal weight-coal dust magnitude relation curve f2, obtain the second practical as-fired coal powder variable quantity of unit
Revolving speed, coal pulverizer ventilation quantity and the furnace coal weight for adjusting dynamic separator, so that coal-burning boiler unit actually enters
Furnace coal dust variable quantity is equal with as-fired coal powder variable quantity target value, i.e.,
In order to make it easy to understand, referring to Fig. 3, a kind of reality of coal-burning boiler unit fast frequency hopping device provided herein
Example is applied, is comprised the following modules:
It is special to obtain burning for unit load-input thermal relationship according to coal-burning boiler unit for first processing module 301
Property function, and input heat and as-fired coal calorific value, real-time running data are calculated according to the real-time running data of coal-burning boiler unit
Including the power of the assembling unit and furnace coal weight.
Second processing module 302, for obtaining furnace coal weight-coal dust magnitude relation curve of coal-burning boiler unit, according to entering
Furnace coal amount-coal dust magnitude relation curve calculates as-fired coal powder amount and coal dust calorific value.
Third processing module 303, the AGC for getting target load is instructed, according to target load and current loads meter
Obtained unit load change rate calculates input heat gradient.
Coordinating control module 304 is adjusted dynamic for obtaining as-fired coal powder variable quantity target value according to input heat gradient
Revolving speed, coal pulverizer ventilation quantity and the furnace coal weight of state separator so that the practical as-fired coal powder variable quantity of coal-burning boiler unit with
As-fired coal powder variable quantity target value is equal.
Further, first processing module 301 specifically includes:
First acquisition submodule 3011, for carrying out boiler controller system change to coal-burning boiler unit when boiler coal quality is stablized
Load test obtains unit load-input thermal relationship curve.
Differential submodule 3012 obtains the burning of unit for carrying out differential to unit load-input thermal relationship curve
Characterisitic function f1, combustion characteristics function f1Expression formula are as follows:
ΔQnet=f1(Δ P),
Wherein, Δ QnetFor the input heat gradient for entering boiler, Δ P is the load changing rate of boiler controller system.
First computational submodule 3013, it is defeated according to unit load-for obtaining the real-time running data of coal-burning boiler unit
Enter thermal relationship curve and calculates input heat and as-fired coal calorific value.
Further, Second processing module 302 specifically includes:
Second acquisition submodule 3021 carries out moisture chemical examination for obtaining as-fired coal powder, according to Operational Parameters in Powder Making System
It is analyzed with data, generates furnace coal weight-coal dust magnitude relation curve f2, furnace coal weight-coal dust magnitude relation curve f2Expression formula are as follows:
Gmf=f2(Gm),
Wherein, GmfFor as-fired coal powder amount, GmFor furnace coal weight.
Second computational submodule 3022, for according to furnace coal weight-coal dust magnitude relation curve f2Calculate as-fired coal powder amount and
Coal dust calorific value calculates the expression formula of coal dust calorific value are as follows:
Qmf=Gm×Qnet,ar/Gmf,
Wherein, QmfFor coal dust calorific value, Qnet,arFor as-fired coal calorific value.
Further, third processing module 303 specifically includes:
Third acquisition submodule 3031 obtains target load for obtaining AGC instruction.
Third computational submodule 3032, for calculating unit load changing rate according to target load and current loads.
4th computational submodule 3033, for according to unit load change rate and combustion characteristics function f1Calculate input heat
Change rate.
Further, coordinating control module 304 specifically includes:
First control submodule 3041, for according to input heat gradient and coal dust calorific value calculation as-fired coal powder variable quantity
Target value Δ Gmf,SP, as-fired coal powder variable quantity target value Δ Gmf,SPCalculation formula are as follows:
Second control submodule 3042, for adjusting dynamic separator according to the dynamic separator characterisitic function got
Revolving speed, and/or adjust coal pulverizer ventilation quantity and control the first practical as-fired coal powder variation delta Gmf,pv1, adjust furnace coal weight control the
Two practical as-fired coal powder variable quantitiesSo that the first practical as-fired coal powder variation delta Gmf,pv1With the second practical as-fired coal
Powder variable quantitySummation be equal to as-fired coal powder variable quantity target value Δ Gmf,SP；
The f of dynamic separator characterisitic function3Are as follows:
ΔM1mf=f3 (Δ S),
Wherein, Δ S is dynamic separator rotation speed change amount, Δ M1mfFor as-fired coal powder variable quantity；
First practical as-fired coal powder variation delta Gmf,pv1With the revolving speed of dynamic separator and the relation table of coal pulverizer ventilation quantity
Up to formula are as follows:
Second practical as-fired coal powder variable quantityRoot furnace coal weight-coal dust magnitude relation curve f2Enter furnace with unit
The variation of coal amount measures, wherein furnace coal weight variable quantityExpression formula are as follows:
In several embodiments provided herein, it should be understood that disclosed device and method can pass through it
Its mode is realized.For example, the apparatus embodiments described above are merely exemplary, for example, the division of the unit, only
Only a kind of logical function partition, there may be another division manner in actual implementation, such as multiple units or components can be tied
Another system is closed or is desirably integrated into, or some features can be ignored or not executed.Another point, it is shown or discussed
Mutual coupling, direct-coupling or communication connection can be through some interfaces, the INDIRECT COUPLING or logical of device or unit
Letter connection can be electrical property, mechanical or other forms.
The unit as illustrated by the separation member may or may not be physically separated, aobvious as unit
The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multiple
In network unit.It can select some or all of unit therein according to the actual needs to realize the mesh of this embodiment scheme
's.
It, can also be in addition, each functional unit in each embodiment of the application can integrate in one processing unit
It is that each unit physically exists alone, can also be integrated in one unit with two or more units.Above-mentioned integrated list
Member both can take the form of hardware realization, can also realize in the form of software functional units.
If the integrated unit is realized in the form of SFU software functional unit and sells or use as independent product
When, it can store in a computer readable storage medium.Based on this understanding, the technical solution of the application is substantially
The all or part of the part that contributes to existing technology or the technical solution can be in the form of software products in other words
It embodies, which is stored in a storage medium, including some instructions are used so that a computer
Equipment (can be personal computer, server or the network equipment etc.) executes the complete of each embodiment the method for the application
Portion or part steps.And storage medium above-mentioned includes: USB flash disk, mobile hard disk, read-only memory (full name in English: Read-Only
Memory, english abbreviation: ROM), random access memory (full name in English: Random Access Memory, english abbreviation:
RAM), the various media that can store program code such as magnetic or disk.
The above, above embodiments are only to illustrate the technical solution of the application, rather than its limitations；Although referring to before
Embodiment is stated the application is described in detail, those skilled in the art should understand that: it still can be to preceding
Technical solution documented by each embodiment is stated to modify or equivalent replacement of some of the technical features；And these
It modifies or replaces, the spirit and scope of each embodiment technical solution of the application that it does not separate the essence of the corresponding technical solution.
Claims (10)
1. a kind of coal-burning boiler unit fast frequency hopping method, which comprises the following steps:
101, combustion characteristics function is obtained according to the unit load of coal-burning boiler unit-input thermal relationship, and according to the combustion
The real-time running data of coal burning boiler unit calculates input heat and as-fired coal calorific value, the real-time running data include the power of the assembling unit
And furnace coal weight；
102, the furnace coal weight-coal dust magnitude relation curve for obtaining the coal-burning boiler unit, according to the furnace coal weight-coal dust amount
Relation curve calculates as-fired coal powder amount and coal dust calorific value；
103, the AGC instruction of target load, the unit load being calculated according to the target load and current loads are got
Change rate calculates input heat gradient；
104, according to the input heat gradient obtain as-fired coal powder variable quantity target value, adjust dynamic separator revolving speed,
Coal pulverizer ventilation quantity and furnace coal weight, so that the practical as-fired coal powder variable quantity of the coal-burning boiler unit and the as-fired coal powder
Variable quantity target value is equal.
2. coal-burning boiler unit fast frequency hopping method according to claim 1, which is characterized in that step 101 specifically includes:
1011, when boiler coal quality is stablized, boiler controller system load change test is carried out to coal-burning boiler unit, obtains unit load-
Input thermal relationship curve；
1012, differential is carried out to the unit load-input thermal relationship curve, obtains the combustion characteristics function f of unit1, described
Combustion characteristics function f1Expression formula are as follows:
ΔQnet=f1(Δ P),
Wherein, Δ QnetFor the input heat gradient for entering boiler, Δ P is the load changing rate of boiler controller system；
1013, the real-time running data for obtaining the coal-burning boiler unit, according to the unit load-input thermal relationship curve
Calculate input heat and as-fired coal calorific value.
3. coal-burning boiler unit fast frequency hopping method according to claim 2, which is characterized in that step 102 specifically includes:
1021, it obtains as-fired coal powder and carries out moisture chemical examination, analyzed according to Operational Parameters in Powder Making System and data, generate as-fired coal
Amount-coal dust magnitude relation curve f2, the furnace coal weight-coal dust magnitude relation curve f2Expression formula are as follows:
Gmf=f2(Gm),
Wherein, GmfFor as-fired coal powder amount, GmFor furnace coal weight；
1022, according to the furnace coal weight-coal dust magnitude relation curve f2As-fired coal powder amount and coal dust calorific value are calculated, the coal is calculated
The expression formula of powder calorific value are as follows:
Qmf=Gm×Qnet,ar/Gmf,
Wherein, QmfFor coal dust calorific value, Qnet,arFor as-fired coal calorific value.
4. coal-burning boiler unit fast frequency hopping method according to claim 3, which is characterized in that step 103 specifically includes:
1031, AGC instruction is obtained, target load is obtained；
1032, unit load changing rate is calculated according to the target load and current loads；
1033, according to the unit load change rate and the combustion characteristics function f1Calculate input heat gradient.
5. coal-burning boiler unit fast frequency hopping method according to claim 4, which is characterized in that step 104 specifically includes:
1041, according to the input heat gradient and the coal dust calorific value calculation as-fired coal powder variable quantity target value Δ Gmf,SP,
The as-fired coal powder variable quantity target value Δ Gmf,SPCalculation formula are as follows:
1042, the revolving speed of dynamic separator is adjusted according to the dynamic separator characterisitic function got, and/or is adjusted coal pulverizer and led to
The practical as-fired coal powder variation delta G of Boiler pressure control firstmf,pv1, adjust furnace coal weight and control the second practical as-fired coal powder variable quantitySo that the first practical as-fired coal powder variation delta Gmf,pv1With the described second practical as-fired coal powder variable quantitySummation be equal to the as-fired coal powder variable quantity target value Δ Gmf,SP；
The f of the dynamic separator characterisitic function3Are as follows:
ΔM1mf=f3 (Δ S),
Wherein, Δ S is dynamic separator rotation speed change amount, Δ M1mfFor as-fired coal powder variable quantity；
The first practical as-fired coal powder variation delta Gmf,pv1With the revolving speed of dynamic separator and the relation table of coal pulverizer ventilation quantity
Up to formula are as follows:
Wherein, Q is coal pulverizer ventilation quantity；
The second practical as-fired coal powder variable quantityAccording to the furnace coal weight-coal dust magnitude relation curve f2With unit
Furnace coal weight variable quantity obtains, wherein the furnace coal weight variable quantityExpression formula are as follows:
6. a kind of coal-burning boiler unit fast frequency hopping device, which is characterized in that comprise the following modules:
First processing module, for obtaining combustion characteristics function according to unit load-input thermal relationship of coal-burning boiler unit,
And input heat and as-fired coal calorific value, the real-time running data are calculated according to the real-time running data of the coal-burning boiler unit
Including the power of the assembling unit and furnace coal weight；
Second processing module, for obtaining furnace coal weight-coal dust magnitude relation curve of the coal-burning boiler unit, according to it is described enter
Furnace coal amount-coal dust magnitude relation curve calculates as-fired coal powder amount and coal dust calorific value；
Third processing module, the AGC for getting target load are instructed, are calculated according to the target load and current loads
The unit load change rate arrived calculates input heat gradient；
Coordinating control module adjusts dynamic for obtaining as-fired coal powder variable quantity target value according to the input heat gradient
Revolving speed, coal pulverizer ventilation quantity and the furnace coal weight of separator, so that the practical as-fired coal powder variable quantity of the coal-burning boiler unit
It is equal with the as-fired coal powder variable quantity target value.
7. coal-burning boiler unit fast frequency hopping device according to claim 6, which is characterized in that the first processing module
It specifically includes:
First acquisition submodule, for carrying out boiler controller system load change test to coal-burning boiler unit when boiler coal quality is stablized,
Obtain unit load-input thermal relationship curve；
Differential submodule obtains the combustion characteristics of unit for carrying out differential to the unit load-input thermal relationship curve
Function f1, the combustion characteristics function f1Expression formula are as follows:
ΔQnet=f1(Δ P),
Wherein, Δ QnetFor the input heat gradient for entering boiler, Δ P is the load changing rate of boiler controller system；
First computational submodule, it is defeated according to the unit load-for obtaining the real-time running data of the coal-burning boiler unit
Enter thermal relationship curve and calculates input heat and as-fired coal calorific value.
8. coal-burning boiler unit fast frequency hopping device according to claim 7, which is characterized in that the Second processing module
It specifically includes:
Second acquisition submodule carries out moisture chemical examination for obtaining as-fired coal powder, according to Operational Parameters in Powder Making System and data point
Analysis generates furnace coal weight-coal dust magnitude relation curve f2, the furnace coal weight-coal dust magnitude relation curve f2Expression formula are as follows:
Gmf=f2(Gm),
Wherein, GmfFor as-fired coal powder amount, GmFor furnace coal weight；
Second computational submodule, for according to the furnace coal weight-coal dust magnitude relation curve f2Calculate as-fired coal powder amount and coal dust heat
Value, calculates the expression formula of the coal dust calorific value are as follows:
Qmf=Gm×Qnet,ar/Gmf,
Wherein, QmfFor coal dust calorific value, Qnet,arFor as-fired coal calorific value.
9. coal-burning boiler unit fast frequency hopping device according to claim 8, which is characterized in that the third processing module
It specifically includes:
Third acquisition submodule obtains target load for obtaining AGC instruction；
Third computational submodule, for calculating unit load changing rate according to the target load and current loads；
4th computational submodule, for according to the unit load change rate and the combustion characteristics function f1Calculate input heat
Change rate.
10. coal-burning boiler unit fast frequency hopping device according to claim 9, which is characterized in that the coordinated control mould
Block specifically includes:
First control submodule, for according to the input heat gradient and the coal dust calorific value calculation as-fired coal powder variable quantity
Target value Δ Gmf,SP, the as-fired coal powder variable quantity target value Δ Gmf,SPCalculation formula are as follows:
Second control submodule, for the revolving speed according to the dynamic separator characterisitic function adjusting dynamic separator got, and
Or it adjusts coal pulverizer ventilation quantity and controls the first practical as-fired coal powder variation delta Gmf,pv1, it is practical to adjust furnace coal weight control second
As-fired coal powder variable quantitySo that the first practical as-fired coal powder variation delta Gmf,pv1Actually enter furnace with described second
Coal dust variable quantitySummation be equal to the as-fired coal powder variable quantity target value Δ Gmf,SP；
The f of the dynamic separator characterisitic function3Are as follows:
ΔM1mf=f3 (Δ S),
Wherein, Δ S is dynamic separator rotation speed change amount, Δ M1mfFor as-fired coal powder variable quantity；
The first practical as-fired coal powder variation delta Gmf,pv1With the revolving speed of dynamic separator and the relation table of coal pulverizer ventilation quantity
Up to formula are as follows:
Wherein, Q is coal pulverizer ventilation quantity；
The second practical as-fired coal powder variable quantityAccording to the furnace coal weight-coal dust magnitude relation curve f2With unit
Furnace coal weight variable quantity obtains, wherein the furnace coal weight variable quantityExpression formula are as follows:
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110848727A (en) * | 2019-12-04 | 2020-02-28 | 国网浙江省电力有限公司电力科学研究院 | Adjusting method for improving boiler load response rate |
| CN110851968A (en) * | 2019-10-31 | 2020-02-28 | 华北电力科学研究院有限责任公司 | Frequency control method and device for dry slag discharge steel belt motor |
| CN111340283A (en) * | 2020-02-24 | 2020-06-26 | 广东电科院能源技术有限责任公司 | Method, system and equipment for predicting and controlling oxygen content in economic operation of coal-fired boiler |
| CN112443855A (en) * | 2020-11-16 | 2021-03-05 | 中国神华能源股份有限公司国华电力分公司 | Nitrogen oxide control method and device in variable load process and coal combustion system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102047040A (en) * | 2008-03-06 | 2011-05-04 | 株式会社Ihi | Method of controlling flow rate of primary recirculating exhaust gas in oxygen combustion boiler and apparatus therefor |
| JP2016035346A (en) * | 2014-08-01 | 2016-03-17 | 株式会社日立製作所 | Biomass fuel mixed combustion method and biomass fuel mixed combustion system |
| CN106168381A (en) * | 2016-07-07 | 2016-11-30 | 神华集团有限责任公司 | The control system of boiler combustion, method and apparatus |
| CN108930977A (en) * | 2018-05-04 | 2018-12-04 | 上海电力学院 | A kind of furnace combustion state real-time online acquisition methods |
| CN109681907A (en) * | 2018-12-29 | 2019-04-26 | 浙江大学 | A kind of coal-fired plant boiler varying duty wind coal matching control apparatus and method |
| CN109882882A (en) * | 2019-01-23 | 2019-06-14 | 国网浙江省电力有限公司电力科学研究院 | Improve low NOXThe method and system of the adherent reducing atmosphere of burning boiler side wall |
-
2019
- 2019-07-16 CN CN201910642254.6A patent/CN110345506B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102047040A (en) * | 2008-03-06 | 2011-05-04 | 株式会社Ihi | Method of controlling flow rate of primary recirculating exhaust gas in oxygen combustion boiler and apparatus therefor |
| JP2016035346A (en) * | 2014-08-01 | 2016-03-17 | 株式会社日立製作所 | Biomass fuel mixed combustion method and biomass fuel mixed combustion system |
| CN106168381A (en) * | 2016-07-07 | 2016-11-30 | 神华集团有限责任公司 | The control system of boiler combustion, method and apparatus |
| CN108930977A (en) * | 2018-05-04 | 2018-12-04 | 上海电力学院 | A kind of furnace combustion state real-time online acquisition methods |
| CN109681907A (en) * | 2018-12-29 | 2019-04-26 | 浙江大学 | A kind of coal-fired plant boiler varying duty wind coal matching control apparatus and method |
| CN109882882A (en) * | 2019-01-23 | 2019-06-14 | 国网浙江省电力有限公司电力科学研究院 | Improve low NOXThe method and system of the adherent reducing atmosphere of burning boiler side wall |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110851968A (en) * | 2019-10-31 | 2020-02-28 | 华北电力科学研究院有限责任公司 | Frequency control method and device for dry slag discharge steel belt motor |
| CN110851968B (en) * | 2019-10-31 | 2023-06-06 | 华北电力科学研究院有限责任公司 | Dry slag-discharging steel belt motor frequency control method and device |
| CN110848727A (en) * | 2019-12-04 | 2020-02-28 | 国网浙江省电力有限公司电力科学研究院 | Adjusting method for improving boiler load response rate |
| CN111340283A (en) * | 2020-02-24 | 2020-06-26 | 广东电科院能源技术有限责任公司 | Method, system and equipment for predicting and controlling oxygen content in economic operation of coal-fired boiler |
| CN112443855A (en) * | 2020-11-16 | 2021-03-05 | 中国神华能源股份有限公司国华电力分公司 | Nitrogen oxide control method and device in variable load process and coal combustion system |
| CN112443855B (en) * | 2020-11-16 | 2023-03-31 | 中国神华能源股份有限公司国华电力分公司 | Nitrogen oxide control method and device in variable load process and coal combustion system |
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