KR102322450B1 - Apparatus and method for setting the transient compensation signal operation based on the physical characteristics of the boiler - Google Patents

Abstract

A device is provided for setting a transient compensation signal actuation based on the physical characteristics of the boiler. The apparatus includes a characteristic derivation unit for deriving the response characteristics of the boiler based on the physical characteristics of the boiler, and a compensation derivation for generating a transient compensation signal for compensating for the fuel supply amount according to the load of the boiler based on the response characteristics of the boiler and a control unit for controlling the boiler according to the generated transient state compensation signal.

Description

Apparatus and method for setting the transient compensation signal operation based on the physical characteristics of the boiler

The present invention relates to a transient compensation technology, and more particularly, to an apparatus for setting a transient compensation signal operation based on physical characteristics of a boiler and a method therefor.

The boiler transient compensation signal is a control parameter for improving the response speed of the boiler by calculating the amount of heat input required to increase or decrease the internal energy of the boiler when the output of the coal-fired power plant increases or decreases.

In order to change the output of a coal-fired power plant while maintaining the steam temperature constant, energy must be supplied from the coal as much as the energy corresponding to the change in feedwater flow rate. Since it is much longer, it is necessary to reflect this in the control logic.

Accordingly, in general, when the output of the coal-fired power plant increases, more coal is instantaneously supplied than the coal required for the output change, and when the output decreases, less coal is supplied than the coal corresponding to the output change to speed up the response. to improve

The signal that determines how much more or less coal is to be supplied is the boiler transient compensation signal, and the compensation signal can be divided into a part where a change starts, a part where the change is constant, and a part where the change ends.

Since the setting of control parameters for each part depends in most cases on experience, the human labor time and cost associated with this are relatively large. Also, depending on experience, the boiler's response speed may be lowered because the physical transient response characteristics of the boiler are not properly reflected.

Korean Patent Application Laid-Open No. 2001-0041714 published on May 25, 2001 (Title: Apparatus and method for controlling valves responding to tunable expected output)

It is an object of the present invention to provide an apparatus and method for setting a transient compensation signal operation based on the physical characteristics of a boiler.

A device is provided for setting the transient compensation signal operation. The apparatus includes a characteristic derivation unit for deriving the response characteristics of the boiler based on the physical characteristics of the boiler, and a compensation derivation for generating a transient compensation signal for compensating for the fuel supply amount according to the load of the boiler based on the response characteristics of the boiler and a control unit for controlling the boiler according to the generated transient state compensation signal.

The compensation extractor calculates the energy corresponding to the change in the flow rate of feed water to the boiler, calculates the target heat input, which is energy to be supplied or removed to the boiler, and uses the response characteristic of the boiler expressed as a third time delay function. It is possible to derive the amount of fuel supplied so that energy to be supplied or removed to the boiler is generated.

The compensation derivation unit is the same as the output corresponding to the target heat input derived from the response characteristic without considering the time delay even when the time delay is considered by applying the concept of the inverse function to the response characteristic of the boiler expressed by the third time delay function. It is characterized in that the target heat input amount is derived in consideration of the time delay for generating the output, and the fuel supply amount is derived from the target heat input amount in consideration of the derived time delay.

The response characteristic of the boiler includes a response characteristic based on a change in internal energy of the boiler and a response characteristic based on a conversion characteristic of input fuel into energy for the boiler.

The response characteristic based on the change in the internal energy of the boiler is characterized in that it is the sum of the characteristic times of the fluid and the tube in the boiler.

The response characteristic based on the conversion characteristic of input fuel into energy for the boiler is characterized in that it is expressed as a value at which a root mean square deviation or a mean absolute deviation is minimized.

The physical characteristics of the boiler include changes in internal energy of the boiler and conversion characteristics of fuel input to the boiler.

The internal energy is characterized in that it includes energy possessed by the fluid in the boiler and energy possessed by the tube in the boiler.

A method is provided for setting a transient compensation signal actuation. The method comprises the steps of: deriving the response characteristics of the boiler based on the physical characteristics of the boiler by the characteristic deriving unit; generating; and, by a controller, controlling the boiler according to the generated transient state compensation signal.

The generating of the transient state compensation signal includes: calculating, by the compensation deriving unit, energy corresponding to a change in feed water flow rate to the boiler, and calculating a target heat input amount, which is energy to be supplied or removed to the boiler; and deriving the fuel supply amount by calculating an input to the boiler from the target heat input amount, which is a target output of the boiler, according to the response characteristic of the boiler by applying an inverse function concept to the response characteristic.

In the step of deriving the fuel supply amount, the compensation derivation unit applies the concept of an inverse function to the response characteristic to calculate the input to the boiler from the target heat input amount, which is the target output of the boiler according to the response characteristic of the boiler. It is characterized in that the fuel supply amount is derived.

The step of deriving the response characteristic of the boiler may include deriving the response characteristic based on a change in the internal energy of the boiler which is the sum of characteristic times of the fluid and the tube in the boiler, and a root mean square deviation or deriving a response characteristic based on the conversion characteristic of the input fuel into energy for the boiler expressed as a value at which a mean absolute deviation is minimized.

According to the present invention, the response speed of the boiler can be improved by using the transient state compensation signal based on the physical characteristics of the boiler. Since the load followability is improved by improving the response speed of the boiler, the present invention can contribute to the improvement of the hatching change rate of the coal-fired power plant. Since the load change rate is one of the indicators indicating the flexible operation of the power plant along with the starting time, the lowest and highest operable loads, the present invention can also contribute to the stabilization of the power grid according to the expansion of new and renewable energy with high output variability.

1 is a view for explaining the configuration of a boiler system according to an embodiment of the present invention.
2 is a diagram for explaining the configuration of an apparatus for setting a transient state compensation signal operation based on the physical characteristics of a boiler according to an embodiment of the present invention.
3 is a graph for explaining a method of deriving an input value using an inverse function concept according to a response characteristic according to an embodiment of the present invention.
4 is a flowchart illustrating a method for setting a transient state compensation signal operation based on the physical characteristics of a boiler according to an embodiment of the present invention.
5 is a diagram illustrating a computing device according to an embodiment of the present invention.

Since the present invention can apply various transformations and can have various embodiments, specific embodiments are illustrated and described in detail in the detailed description. However, this is not intended to limit the present invention to specific embodiments, and it should be understood to include all modifications, equivalents and substitutes included in the spirit and scope of the present invention.

The terms used in the present invention are only used to describe specific embodiments, and are not intended to limit the present invention. The singular expression includes the plural expression unless the context clearly dictates otherwise. In the present invention, terms such as 'comprising' or 'having' are intended to designate that the features, numbers, steps, operations, components, parts, or combinations thereof described in the specification exist, but one or more other features It should be understood that this does not preclude the existence or addition of numbers, steps, operations, components, parts, or combinations thereof.

First, a configuration of a boiler system according to an embodiment of the present invention will be described. 1 is a view for explaining the configuration of a boiler system according to an embodiment of the present invention. Referring to FIG. 1 , the boiler system includes a boiler 10 and a compensation controller 20 .

Boiler 10 is a coal feeder (Coal Feeder, 11) for supplying fuel, a pulverizer (Pulverizer, 12) for decomposing the supplied fuel, for example, coal into powder, a burner for burning fuel (burner, 13), a superheater Cold (Att: Attemperator), a superheater (SH: SuperHeater) that generates superheated steam by reheating saturated steam generated from a boiler, and ash that reheats combustion gas or steam that has been expanded to a certain pressure in a gas turbine or steam turbine Reheater (RH: ReHeater) and an economizer (Eco: Economizer) that heats feedwater using residual heat of boiler combustion exhaust gas, and the like.

The compensation controller 20 derives a response characteristic of the boiler 10 based on the physical characteristic of the boiler 10 in order to improve load followability, and a boiler transient state compensation signal based on the derived response characteristic of the boiler 10 . , and controls the boiler 10 according to the calculated compensation signal.

Then, the configuration of the above-described compensation controller 20 will be described in more detail. 2 is a diagram for explaining the configuration of an apparatus for setting a transient state compensation signal operation based on the physical characteristics of a boiler according to an embodiment of the present invention. Referring to FIG. 2 , the compensation controller 20 includes a characteristic deriving unit 100 , a compensation deriving unit 200 , and a control unit 300 .

The characteristic deriving unit 100 is for deriving the response characteristics of the boiler 10 based on the physical characteristics of the boiler 10 . When the output of the power plant changes, the response characteristics of the boiler 10 include changes in internal energy of the boiler 10 and conversion characteristics of input fuel into energy. That is, the characteristic deriving unit 100 derives the response characteristic of the boiler 10 based on the internal energy change and the conversion characteristic of the input fuel into energy, which are physical characteristics of the boiler 10 .

First, the characteristic derivation unit 100 may derive the response characteristic of the boiler 10 based on the internal energy change among the internal energy change which is a physical characteristic of the boiler 10 and the internal energy change among the input fuel energy conversion characteristics.

The internal energy of the boiler 10 includes energy possessed by the fluid in the boiler and energy possessed by the tube in the boiler. That is, according to the energy conservation equation, the internal energy of the boiler 10 may be expressed as the sum of energy possessed by the fluid and the tube in the boiler 10 as shown in Equation 1 below.

는 보일러 내 증기 질량,

은 보일러 내 튜브 질량,

는 보일러 내부 에너지,

은 튜브 평균 정압 비열, 그리고

은 증기와 튜브의 평균 온도를 나타낸다. 또한, 오른쪽항에서

은 보일러 입구와 출구 증기 유량,

은 보일러 입구와 출구 증기 엔탈피, 그리고

는 보일러 입열량을 나타낸다. In the left term of Equation 1

is the mass of steam in the boiler,

is the mass of the tube in the boiler,

is the energy inside the boiler,

is the tube average static pressure specific heat, and

is the average temperature of the steam and tube. Also, in the right

is the boiler inlet and outlet steam flow,

is the boiler inlet and outlet steam enthalpy, and

represents the boiler heat input.

In this way, since the internal energy of the boiler 10 includes the energy possessed by the fluid in the boiler and the energy possessed by the tube in the boiler, the characteristic time of each of the energy possessed by the fluid in the boiler and the energy possessed by the tube in the boiler is the fluid in the boiler and It can be obtained by dividing the energy possessed by each tube by the fluid flow rate. Accordingly, if Equation 1 is arranged as Equation 2 and Equation 3 below, the internal energy response characteristic time of the boiler 10 can be expressed as the sum of the characteristic times of the fluid and the tube.

Here, Equation 3 represents the first delay characteristic time, and as in the following Equation 4, it is possible to derive the third delay characteristic time by dividing by 3 .

는 시간,

은 보일러 내 증기와 튜브 질량,

는 보일러 내부 에너지,

은 증기와 튜브 평균 정압 비열,

은 증기와 튜브의 평균 온도,

은 보일러 입구와 출구 증기 유량,

은 보일러 입구와 출구 증기 엔탈피,

는 보일러 입열량,

은 보일러 부피와 출구 증기 압력,

및

은 보일러 출구 증기 1차 지연 특성 시간, 그리고,

은 보일러 출구 증기 3차 지연 특성 시간을 나타낸다. In Equations 2, 3 and 4

is the time,

is the mass of steam and tube in the boiler,

is the energy inside the boiler,

is the vapor and tube average static pressure specific heat,

is the average temperature of the steam and tube,

is the boiler inlet and outlet steam flow,

is the boiler inlet and outlet steam enthalpy,

is the boiler heat input,

is the boiler volume and outlet steam pressure,

and

is the boiler exit steam first delay characteristic time, and,

denotes the boiler exit steam tertiary delay characteristic time.

In addition, the characteristic deriving unit 100 is a response characteristic of the boiler 10 based on the internal energy change and the input fuel conversion to energy conversion characteristic of the input fuel energy conversion characteristic, which is a physical characteristic of the boiler 10 . can be derived

The conversion characteristic of the input fuel into energy means the time it takes for the fuel to be supplied and burned to affect the fluid. In the boiler 10 , fuel is supplied to the combustor 13 through the coal feeder 11 and the pulverizer 12 . Therefore, the conversion characteristics are determined by characteristics of the coal feeder 11 , the pulverizer 12 , and the like. Since the characteristics of the coal feeder 11 and the pulverizer 12 are physically difficult to accurately calculate, the response characteristics of the boiler 10 are calculated based on the conversion characteristics of the input fuel into energy based on actual operation data. .

The response characteristic of the boiler 10 based on the conversion characteristic of the input fuel into energy is a value at which a root mean square deviation or a mean absolute deviation is minimized.

Previously, the internal energy response characteristic of the boiler 10 can be expressed as a primary time delay function, but only the primary time delay function cannot be expressed because the conversion characteristic of the input fuel into energy has a non-reaction time. Therefore, in the embodiment of the present invention, the physical response characteristic of the boiler 10 is the total response characteristic time that is the sum of the internal energy response characteristic time of the boiler 10 and the conversion characteristic time of the input fuel into energy, and the characteristic derivation unit 100 represents the physical response characteristics of the boiler as a third-order time delay function.

The compensation derivation unit 200 derives the transient state compensation signal of the boiler. The compensation derivation unit 200 may derive the boiler transient compensation signal from the response characteristic of the boiler expressed as a third-order time delay function. A more detailed description is as follows.

First, the compensation derivation unit 200 calculates energy to be supplied from fuel, for example, coal by calculating energy corresponding to a change in the flow rate of water supply. Here, the calculated energy means energy to be supplied immediately in response to a change in feed water flow rate, not energy reflecting the physical characteristics of the boiler. That is, this is the target heat input without considering the time delay effect. This value can be derived from a design value or a related function on the control logic corrected with actual operation data. For example, as shown in Equation 5 below, the compensation derivation unit 200 may classify before and after the change in the water flow rate into a first state and a second state, and derive a target heat input according to the change in the feed water flow rate.

,

는 상태 1과 2에서의 보일러 입열량이고,

는 상태 1과 2에서의 보일러 입구 유량이고,

는 보일러 출구 목표 엔탈피이고,

는 상태 1과 2에서의 보일러 입구 엔탈피이고,

는 시간 지연을 고려하지 않았을 때 공급 또는 제거 되어야 할 목표 입열량이고,

는 상태 2와 1에서의 보일러 입구 유량 차이이고, In Equation 5,

,

is the boiler heat input in states 1 and 2,

is the boiler inlet flow in states 1 and 2,

is the boiler outlet target enthalpy,

is the boiler inlet enthalpy in states 1 and 2,

is the target heat input to be supplied or removed when time delay is not taken into account,

is the difference in the boiler inlet flow rate in states 2 and 1,

The compensation derivation unit 200 applies the concept of an inverse function to the physical response characteristics of the boiler expressed as a third-order time delay function to derive the fuel supply amount to generate energy calculated according to the previously calculated target heat input. This is a concept of calculating an input to obtain a specific type of output while knowing the response characteristics between the input and the output. The boiler transient compensation signal includes the derived fuel supply. That is, the compensation deriving unit 200 applies the concept of an inverse function to the response characteristics derived by the characteristic deriving unit 100 to input the input to the boiler from the target heat input, which is the target output of the boiler according to the response characteristics of the boiler, that is, fuel derive the supply.

For example, the response characteristic of the boiler in consideration of the time delay may be expressed as a third-order time delay function as shown in Equation 6 below. The compensation derivation unit 200 may calculate the target heat input in consideration of the time delay by applying the concept of the inverse function of the tertiary time delay function to the target heat input without considering the time delay. That is, the compensation derivation unit 200 applies the concept of the inverse function to the third time delay function to calculate the target heat input to be supplied or removed in consideration of the delay effect as shown in Equation 7 below.

는 공급 또는 제거 되어야 할 목표 입열량이고,

는 상태 1과 2에서의 보일러 입구 평균 엔탈피이고,

는 시간 간격이고,

는 특성 시간이고,

는 지연 효과가 고려된 공급 또는 제거 되어야 할 목표 입열량이다. In Equation 6 and Equation 7

is the target heat input to be supplied or removed,

is the average enthalpy of the boiler inlet in states 1 and 2,

is the time interval,

is the characteristic time,

is the target heat input to be supplied or removed considering the delay effect.

The graph of FIG. 3 shows the response characteristic R1 without considering the time delay and the response characteristic R2 considering the time delay. That is, when the energy corresponding to the target heat input X1 derived from the response characteristic that does not consider the time delay by applying the concept of the inverse function to the third delay function is Y, the output Y can be obtained even when the time delay is considered. Thus, it is possible to derive the input X2, which is the target heat input in consideration of the time delay. That is, the compensation derivation unit 200 applies the concept of the inverse function to the third delay function and applies the concept of the inverse function to the third delay function so that the output Y comes out from the response characteristic that does not consider the time delay before (S140). When the derived target heat input is X1, the input X2, which is the target heat input in consideration of the time delay, can be derived so that the output Y can be output even when the time delay is taken into consideration. This is a concept of calculating an input to obtain a specific type of output while knowing the response characteristics between the input and the output.

As such, when the target heat input for compensating for the time delay is derived, the compensation derivation unit 200 derives the fuel supply amount according to the target heat input amount to generate a transient compensation signal.

Then, the control unit 300 controls the boiler 10 according to the transient state compensation signal. That is, the controller 300 controls the boiler 10 so that the fuel supply amount is adjusted according to the transient state compensation signal.

Next, a method for setting a transient compensation signal operation based on the physical characteristics of a boiler according to an embodiment of the present invention will be described. 4 is a flowchart illustrating a method for setting a transient state compensation signal operation based on physical characteristics of a boiler according to an embodiment of the present invention.

Referring to FIG. 4 , the characteristic deriving unit 100 derives response characteristics of the boiler 10 based on the physical characteristics of the boiler 10 . When the output of the power plant changes, the response characteristics of the boiler 10 include changes in internal energy of the boiler 10 and conversion characteristics of input fuel into energy. That is, the characteristic deriving unit 100 derives the response characteristic of the boiler 10 based on the internal energy change and the conversion characteristic of the input fuel into energy, which are physical characteristics of the boiler 10 .

To this end, the characteristic deriving unit 100 derives the response characteristic of the boiler 10 based on the change in internal energy of the boiler 10 in step S110.

The internal energy of the boiler 10 includes energy possessed by the fluid in the boiler and energy possessed by the tube in the boiler. That is, the internal energy of the boiler 10 may be expressed as the sum of the energy possessed by the fluid and the tube in the boiler 10 as shown in Equation 1 . Accordingly, the characteristic deriving unit 100 represents the response characteristic based on the change in the internal energy of the boiler 10 as the sum of the characteristic times of the fluid and the tube according to Equations 2 and 3.

In addition, the characteristic derivation unit 100 derives the response characteristic of the boiler 10 based on the conversion characteristic of the input fuel into energy for the boiler 10 by using the actual operation data in step S120 . That is, the response characteristic of the boiler 10 based on the conversion characteristic of the input fuel into energy is a value at which the root mean square deviation or the mean absolute deviation is minimized according to the actual operation data. am.

The characteristic deriving unit 100 finally calculates the sum of the response characteristic based on the internal energy change of the boiler 10 and the response characteristic based on the conversion characteristic of the input fuel into energy for the boiler 10 in step S130. It is derived from the response characteristics of the boiler (10).

When the response characteristic of the boiler 10 is derived, the compensation derivation unit 200 may derive the boiler transient compensation signal based on the derived response characteristic of the boiler 10 .

To this end, the compensation derivation unit 200 first calculates the energy corresponding to the change in the flow rate of water supply in step S140 to calculate the target heat input, which is energy to be supplied from fuel, for example, coal. The calculated energy means energy that must be supplied immediately in response to a change in feedwater flow rate, not energy that reflects the physical characteristics of the boiler. That is, this is the target heat input without considering the time delay. For example, as shown in Equation 5, the compensation derivation unit 200 may classify before and after the change in water flow rate into a first state and a second state, and derive a target heat input according to the change in water flow rate.

Referring to FIG. 3 , the compensation derivation unit 200 calculates the target heat input in consideration of the time delay by applying the concept of the inverse function of the tertiary time delay function to the target heat input without considering the time delay calculated in step S150 . do. That is, the compensation derivation unit 200 applies the concept of the inverse function to the third delay function and applies the concept of the inverse function to the third delay function so that the output Y comes out from the response characteristic that does not consider the time delay before (S140). When the derived target heat input is X1, the input X2, which is the target heat input in consideration of the time delay, can be derived so that the output Y can be output even when the time delay is taken into consideration. This is a concept of calculating an input to obtain a specific type of output while knowing the response characteristics between the input and the output.

The compensation derivation unit 200 generates a compensation signal for the transient state of the boiler 10 by deriving the required fuel supply amount from the target heat input amount in consideration of the time delay in step S160 .

Then, the control unit 300 controls the boiler 10 according to the transient state compensation signal in step S170. That is, the controller 300 controls the boiler 10 so that the fuel supply amount is adjusted according to the transient state compensation signal.

5 is a diagram illustrating a computing device according to an embodiment of the present invention. The computing device TN100 of FIG. 5 may be a device described herein (eg, a device for setting a transient state compensation signal operation based on a physical characteristic of a boiler, etc.).

In the embodiment of FIG. 5 , the computing device TN100 may include at least one processor TN110 , a transceiver device TN120 , and a memory TN130 . In addition, the computing device TN100 may further include a storage device TN140 , an input interface device TN150 , an output interface device TN160 , and the like. Components included in the computing device TN100 may be connected by a bus TN170 to communicate with each other.

The processor TN110 may execute a program command stored in at least one of the memory TN130 and the storage device TN140. The processor TN110 may mean a central processing unit (CPU), a graphics processing unit (GPU), or a dedicated processor on which methods according to an embodiment of the present invention are performed. The processor TN110 may be configured to implement procedures, functions, methods, and the like described in connection with an embodiment of the present invention. The processor TN110 may control each component of the computing device TN100 .

Each of the memory TN130 and the storage device TN140 may store various information related to the operation of the processor TN110 . Each of the memory TN130 and the storage device TN140 may be configured as at least one of a volatile storage medium and a non-volatile storage medium. For example, the memory TN130 may include at least one of a read only memory (ROM) and a random access memory (RAM).

The transceiver TN120 may transmit or receive a wired signal or a wireless signal. The transceiver TN120 may be connected to a network to perform communication.

On the other hand, the various methods according to the embodiment of the present invention described above may be implemented in the form of a program readable by various computer means and recorded in a computer readable recording medium. Here, the recording medium may include a program command, a data file, a data structure, etc. alone or in combination. The program instructions recorded on the recording medium may be specially designed and configured for the present invention, or may be known and available to those skilled in the art of computer software. For example, the recording medium includes magnetic media such as hard disks, floppy disks and magnetic tapes, optical recording media such as CD-ROMs and DVDs, and magneto-optical media such as floppy disks ( magneto-optical media), and hardware devices specially configured to store and execute program instructions, such as ROM, RAM, flash memory, and the like. Examples of program instructions may include not only machine language such as generated by a compiler, but also a high-level language that can be executed by a computer using an interpreter or the like. Such hardware devices may be configured to operate as one or more software modules to perform the operations of the present invention, and vice versa.

In the above, although an embodiment of the present invention has been described, those of ordinary skill in the art can add, change, delete or add components within the scope that does not depart from the spirit of the present invention described in the claims. The present invention may be variously modified and changed by, etc., and this will also be included within the scope of the present invention.

10: Boiler
11: bomber
12: Differentiator
13: combustor
20: compensation controller
100: characteristic derivation unit
200: reward derivation unit
300: control unit

Claims (12)

a characteristic derivation unit for deriving the response characteristics of the boiler based on the physical characteristics of the boiler;
a compensation derivation unit configured to generate a transient compensation signal for improving the response speed of the boiler by compensating for the amount of fuel supplied according to the load of the boiler based on the response characteristics of the boiler; and
a controller for controlling the boiler according to the generated transient state compensation signal;
includes,
The compensation derivation unit
Calculate the energy corresponding to the change in the flow rate of feed water to the boiler to calculate the target heat input, which is the energy to be supplied or removed to the boiler,
Characterized in deriving a fuel supply amount to generate energy to be supplied or removed to the boiler by using the response characteristic of the boiler expressed as a third time delay function
Device for setting the transient compensation signal operation. delete According to claim 1,
The compensation derivation unit
Even when the time delay is taken into consideration by applying the concept of an inverse function to the response characteristic of the boiler expressed by the third time delay function, the same output as the output corresponding to the target heat input derived from the response characteristic not considering the time delay is achieved. Deriving the target heat input considering the time delay,
characterized in that the fuel supply amount is derived from the target heat input amount in consideration of the derived time delay
Device for setting the transient compensation signal operation. According to claim 1,
The response characteristics of the boiler are
Response characteristics based on changes in the internal energy of the boiler and
Characterized in that it comprises a response characteristic based on the conversion characteristic of the input fuel to energy for the boiler.
Device for setting the transient compensation signal operation. 5. The method of claim 4,
The response characteristic based on the change in the internal energy of the boiler is
Characterized in that it is the sum of the characteristic times of the fluid and the tube in the boiler
Device for setting the transient compensation signal operation. 5. The method of claim 4,
The response characteristic based on the conversion characteristic of the input fuel into energy for the boiler is
Characterized in that the root mean square deviation or mean absolute deviation is expressed as a minimum value.
Device for setting the transient compensation signal operation. According to claim 1,
The physical characteristics of the boiler are
change in the internal energy of the boiler and
Conversion characteristics of input fuel into energy for the boiler
characterized by comprising
Device for setting the transient compensation signal operation. 5. The method of claim 4,
The internal energy is
Characterized in that it contains the energy possessed by the fluid in the boiler and the energy possessed by the tube in the boiler.
Device for setting the transient compensation signal operation. deriving, by the characteristic derivation unit, response characteristics of the boiler based on the physical characteristics of the boiler;
generating a transient compensation signal for improving the response speed of the boiler by compensating for a fuel supply amount according to the load of the boiler, based on the response characteristic of the boiler; and
controlling, by a controller, the boiler according to the generated transient state compensation signal;
includes,
The generating of the transient state compensation signal comprises:
calculating, by the compensation deriving unit, energy corresponding to a change in the flow rate of feed water to the boiler, and calculating a target heat input, which is energy to be supplied or removed to the boiler; and
deriving, by the compensation derivation unit, a fuel supply amount for generating energy to be supplied or removed to the boiler using a response characteristic of the boiler expressed as a third-order time delay function;
characterized by comprising
Method for setting up transient compensation signal operation. delete 10. The method of claim 9,
The step of deriving the fuel supply amount is
The compensation derivation unit applies the concept of an inverse function to the response characteristic to derive the fuel supply amount in such a way that the input to the boiler is calculated from the target heat input amount, which is the target output of the boiler according to the response characteristic of the boiler. to do
Method for setting up transient compensation signal operation. 10. The method of claim 9,
The step of deriving the response characteristics of the boiler is
deriving a response characteristic based on a change in internal energy of the boiler which is a sum of characteristic times of the fluid and tube in the boiler; and
deriving a response characteristic based on the conversion characteristic of input fuel into energy for the boiler expressed as a value at which the root mean square deviation or mean absolute deviation is minimized; characterized by including
Method for setting up transient compensation signal operation.

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