A method and apparatus for process setpoint handling in a heat and steam temperature control system

Abstract

The application discloses a heat supply steam temperature control system process given treatment method and device, the method comprises the following steps: inputting the process given signal of a heat supply steam temperature control system of a heat supply thermal power generating unit into a first-order inertia filter; differentiating the process given signal to obtain a differential signal; inputting a first-order filter signal of the first-order inertia filter into a third-order inertia filter; adding the output signal of the third-order inertia filter and the differential signal to obtain an accelerated type fastest control system process given signal. By using the application, the accelerated type fastest control system of the heat supply steam temperature control system can inhibit process overshoot, significantly reduce the regulation time, and improve the control performance of the accelerated type engineering fastest proportional-integral controller.

Description

Technical Field

[0001] This invention relates to the field of industrial process control, and in particular to a process setpoint processing method and apparatus for a heating steam temperature control system. Background Technology

[0002] In industrial process control practice, engineering researchers have invented the Engineering Fastest Controller (EFC), which significantly improves feedback control performance. The EFC category includes: Engineering Fastest Proportional-Integral (EFPI) controllers, Accelerated Engineering Fastest Proportional-Integral (AEFPI) controllers, and Engineering Fastest Leading Observer (EFLO). EFPI is suitable for cascading with EFLO; in high-order processes, the performance improvement compared to Proportional-Integral-Derivative (PID) control is sufficient. AEFPI is suitable for standalone use, and the performance improvement compared to Proportional-Integral (PI) control is sufficient.

[0003] EFC technology has been widely adopted in the fields of peak shaving and frequency regulation of thermal power units in Guangdong Province.

[0004] In practice, it has been found that the process overshoot of AEFPI control is relatively large in the control process of the heating steam temperature control system of thermal power units, which is an inherent characteristic of AEFPI control. However, the heating steam temperature control system of thermal power units cannot tolerate large process overshoots. Connecting a first-order inertial filter (FOIF) at the process setpoint can effectively suppress process overshoot. However, this simple approach significantly reduces the regulation performance of AEFPI control. Summary of the Invention

[0005] This invention provides a process setpoint processing method and apparatus for a heating steam temperature control system, which significantly improves the regulation performance of accelerated engineering maximum proportional-integral (AEFPI) control.

[0006] To achieve the above objectives, a first aspect of this application provides a process setpoint processing method for a heating steam temperature control system, comprising:

[0007] The process input signal of the heating steam temperature control system of the heating thermal power unit is input into a first-order inertial filter.

[0008] Differentiate the given signal in the process to obtain the differential signal;

[0009] The output signal of the first-order inertial filter is input into the third-order inertial filter;

[0010] The output signal of the third-order inertial filter is added to the differential signal to obtain the process command signal of the acceleration-type maximum speed control system.

[0011] In one possible implementation of the first aspect, the Laplace transfer function of the first-order inertial filter is:

[0012]

[0013] Among them, f FOIF (s) is the Laplace transfer function of the first-order inertial filter; T FOIF is the time constant of the first-order inertial filter.

[0014] In one possible implementation of the first aspect, the Laplace transfer function of the third-order inertial filter is:

[0015]

[0016] Among them, f TOIF (s) is the Laplace transfer function of the third-order inertial filter; T TOIF is the time constant of the third-order inertial filter, in seconds.

[0017] In one possible implementation of the first aspect, before inputting the process command signal of the main steam pressure control system of the thermal power unit into the first-order inertial filter, the method further includes:

[0018] Obtain the step amplitude of the given signal during the acquisition process;

[0019] The first moment when the output of the acquisition process rises to the step amplitude value;

[0020] The second time when the output of the acquisition process rises to its peak;

[0021] Calculate the time difference between the second time and the first time;

[0022] The time constants of the first-order inertial filter and the third-order inertial filter are set according to the time difference.

[0023] In one possible implementation of the first aspect, the Laplace transfer function of the given signal for the accelerated maximum speed control system is:

[0024]

[0025] Among them, f AEFCSPGP (s) is the Laplace transfer function of the given process of the fastest control system for accelerated engineering; f FOIF (s) is the Laplace transfer function of a first-order inertial filter, T FOIF f is the time constant of a first-order inertial filter, in seconds; TOIF (s) is the Laplace transfer function of the third-order inertial filter, T TOIF f is the time constant of the third-order inertial filter, in seconds; CD (s) is the Laplace transfer function of a conventional differentiator; T CD is the time constant of a conventional differentiator.

[0026] A second aspect of this application provides a process setpoint processing apparatus for a heating steam temperature control system, comprising:

[0027] The system comprises a first-order inertial filter, a conventional differentiator, a third-order inertial filter, and an adder. An external process input signal source is connected to the input terminals of the first-order inertial filter and the conventional differentiator, respectively. The output terminal of the first-order inertial filter is connected to the input terminal of the third-order inertial filter. The output terminal of the third-order inertial filter is connected to the first input terminal of the adder. The output terminal of the conventional differentiator is connected to the second input terminal of the adder. The adder is connected to an external accelerated engineering speed proportional-integral controller.

[0028] The first-order inertial filter obtains and processes the process input signal of the heating steam temperature control system of the heating thermal power unit, and then inputs the output signal of the first-order inertial filter into the third-order inertial filter.

[0029] The third-order inertial filter inputs its output signal to the first input terminal of the adder;

[0030] The conventional differentiator differentiates the given signal for the process, and the resulting differentiated signal is input to the second input terminal of the adder.

[0031] The adder adds the output signal of the third-order inertial filter to the differential signal to obtain the process command signal of the acceleration-type maximum speed control system.

[0032] In one possible implementation of the second aspect, the Laplace transfer function of the first-order inertial filter is:

[0033]

[0034] Among them, f FOIF (s) is the Laplace transfer function of the first-order inertial filter; T FOIF is the time constant of the first-order inertial filter, in seconds.

[0035] In one possible implementation of the second aspect, the Laplace transfer function of the third-order inertial filter is:

[0036]

[0037] Among them, f TOIF (s) is the Laplace transfer function of the third-order inertial filter; T TOIF is the time constant of the third-order inertial filter, in seconds.

[0038] In one possible implementation of the second aspect, it further includes: a time constant setting module, used to: obtain the step amplitude value of the process-given signal;

[0039] The first moment when the output of the acquisition process rises to the step amplitude value;

[0040] The second time when the output of the acquisition process rises to its peak;

[0041] Obtain the time difference between the second time and the first time;

[0042] The time constants of the first-order inertial filter and the third-order inertial filter are set according to the time difference.

[0043] In one possible implementation of the second aspect, the Laplace transfer function of the given signal for the acceleration-type maximum speed control system is:

[0044]

[0045] Among them, f AEFCSPGP (s) is the Laplace transfer function of the given process of the fastest control system for accelerated engineering; f FOIF (s) is the Laplace transfer function of a first-order inertial filter, T FOIF f is the time constant of a first-order inertial filter, in seconds; TOIF (s) is the Laplace transfer function of the third-order inertial filter, T TOIF f is the time constant of the third-order inertial filter, in seconds; CD (s) is the Laplace transfer function of a conventional differentiator; T CD is the time constant of a conventional differentiator.

[0046] Compared with the prior art, the present invention provides a process input processing method and apparatus for a heating steam temperature control system. By performing four steps on the process input signal of the heating steam temperature control system, namely: first-order inertial filtering, differential processing, third-order inertial filtering, and addition processing, the accelerated maximum speed control system of the heating steam temperature control system suppresses process overshoot, significantly reduces the settling time, and improves the control performance of the accelerated engineering maximum speed proportional-integral controller. Attached Figure Description

[0047] Figure 1 This is a flowchart illustrating a process given processing method for a heating steam temperature control system according to an embodiment of the present invention.

[0048] Figure 2 This is a schematic diagram of the structure of an acceleration-type maximum speed control system according to an embodiment of the present invention;

[0049] Figure 3 This is a simulation result diagram of the process output provided by an embodiment of the present invention;

[0050] Figure 4 This is a simulation result diagram of another process output provided by an embodiment of the present invention;

[0051] Figure 5 This is a schematic diagram of the process setpoint processing device for a heating steam temperature control system according to an embodiment of the present invention. Detailed Implementation

[0052] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0053] A steam heating system is a system that supplies heat in the form of steam. Specifically, in urban centralized heating systems, water is used as the heating medium, and heat is carried from the heat source to the user via a heating network in the form of steam. The system relies on the pressure of the steam itself for transport, with a pressure drop of approximately 0.1 MPa per kilometer. The parameters of steam supplied by thermal power plants in China are mostly 0.8–1.3 MPa, and the supply distance is generally within 3–4 kilometers. Steam heating easily meets the heat needs of various industrial processes; steam has a low specific gravity, preventing excessive static pressure in high-rise buildings; its flow velocity in pipelines is greater than that of water, generally 25–40 m / s; the heating system is easy to start quickly; and it has high heat transfer efficiency in heat exchange equipment. However, steam suffers significant heat energy and heat medium losses during transportation and use, requiring a large quantity of makeup water for the heat source, and the water quality requirements are also higher than those for the heating network makeup water. Some thermal power units' steam temperature control systems cannot tolerate large process overshoots. Using a first-order inertial filter (FOIF) at the process setpoint effectively suppresses overshoot. However, this simple approach significantly reduces the regulation performance of the AEFPI control.

[0054] Please see Figure 1 A process given processing method for a heating steam temperature control system, comprising:

[0055] S10. Input the process input signal of the heating steam temperature control system of the heating thermal power unit into the first-order inertial filter.

[0056] S11. Differentiate the given signal in the process to obtain the differential signal.

[0057] S12. Input the output signal of the first-order inertial filter into the third-order inertial filter.

[0058] S13. The output signal of the third-order inertial filter is added to the differential signal to obtain the process command signal of the acceleration-type maximum speed control system.

[0059] This implementation is mainly applied to the accelerated maximum speed control system in the heating steam temperature control system of a thermal power unit. In the accelerated maximum speed control system, before the process setpoint signal of the heating steam temperature control system passes through the AEFPI controller, the process setpoint signal of the heating steam temperature control system is processed by the processing method provided in this embodiment to obtain the accelerated maximum speed control system process setpoint signal before being connected to the AEFPI controller. This can effectively reduce the process overshoot of the AEFPI controller and reduce the adjustment time.

[0060] Compared to existing technologies, this invention provides a process input processing method for a condenser water level control system. By processing the process input signal of the heating steam temperature control system in four steps—first-order inertial filtering, differential processing, third-order inertial filtering, and addition—the four processing steps suppress process overshoot, significantly reduce settling time, and improve the control performance of the accelerated engineering maximum speed proportional-integral controller.

[0061] For example, the Laplace transfer function of the first-order inertial filter is:

[0062]

[0063] Among them, f FOIF (s) is the Laplace transfer function of the first-order inertial filter; T FOIF is the time constant of the first-order inertial filter.

[0064] For example, the differentiation process is as follows:

[0065]

[0066] Among them, f CD (s) is the Laplace transfer function of a conventional differentiator; T CD is the time constant of a conventional differentiator, in seconds.

[0067] For example, the Laplace transfer function of the third-order inertial filter is:

[0068]

[0069] Among them, f TOIF (s) is the Laplace transfer function of the third-order inertial filter; T TOIF is the time constant of the third-order inertial filter, in seconds.

[0070] In the above embodiment, the process input signal is fed into a conventional differentiator and a first-order inertial filter. The conventional differentiator outputs a conventional differential signal, and the first-order inertial filter outputs a first-order inertial filter signal. The first-order inertial filter signal is fed into a third-order inertial filter, which outputs a third-order inertial filter signal. Finally, the third-order inertial filter signal and the conventional differential signal are fed into an adder, and the adder outputs the process input for the fastest control system.

[0071] For example, before inputting the process command signal of the main steam pressure control system of the thermal power unit into the first-order inertial filter, the method further includes:

[0072] The step amplitude value of the given signal is obtained during the acquisition process, wherein the step amplitude value is V. SUThe unit is dimensionless;

[0073] The output PV(t) of the acquisition process rises to V SU The time, labeled T1, is measured in seconds.

[0074] The output PV(t) during the acquisition process rises to the peak PV. MAX The time, labeled T2, is measured in seconds.

[0075] Obtain the difference between the marker T2 and the marker T1, and marker T... D The unit is seconds (s).

[0076] Mark T D for

[0077] T D =T2-T1

[0078] Using the aforementioned mark T D The time constants of the first-order inertial filter, the third-order inertial filter, and the conventional differentiator are set as follows:

[0079] T FOIF =T TOIF =T CD =T D

[0080] Among them, T FOIF T is the time constant of the first-order inertial filter, in seconds. TOIF T is the time constant of the third-order inertial filter, in seconds. CD T is the time constant of the conventional differentiator, in seconds; D The difference between the marker T2 and the marker T1 is expressed in seconds.

[0081] For example, the Laplace transfer function of the process given signal of the acceleration-type maximum speed control system is:

[0082]

[0083] Among them, f AEFCSPGP (s) is the Laplace transfer function of the given process of the fastest control system for accelerated engineering; f FOIF (s) is the Laplace transfer function of a first-order inertial filter, T FOIF f is the time constant of a first-order inertial filter, in seconds; TOIF (s) is the Laplace transfer function of the third-order inertial filter, T TOIF f is the time constant of the third-order inertial filter, in seconds; CD (s) is the Laplace transfer function of a conventional differentiator; TCD is the time constant of a conventional differentiator.

[0084] After processing using the process command processing method for the heating steam temperature control system provided in the above embodiments, the process command signal of the accelerated engineering fastest control system can be obtained. This signal is then fed into the AEFPI controller through a feedback unit to finally obtain the process output result. Please refer to... Figure 2 Common AEFPIs include:

[0085] f AEFPI (s)=K AEFPI [1+f AEFI (s)],

[0086]

[0087]

[0088] T AEFI =T AEFTF

[0089] In the formula, f AEFPI (s) is the transfer function of AEFPI, K AEFPI Cascade proportional control gain, f AEFI (s) is the transfer function of the Acceleration Engineering Fastest Integrator (AEFI), f AEFTF (s) is the transfer function of the Acceleration Engineering Fastest Tracking Filter (AEFTF); T AEFI T is the time constant of AEFI, in seconds. AEFTF T is the time constant of AEFTF, in seconds; quantitatively... AEFI =T AEFTF .

[0090] In practical applications, the process can be as follows:

[0091] In the formula, f P (s) is the transfer function of the process.

[0092] When the open-loop system phase is -150°, the open-loop system gain is equal to 0.5. Searching for the optimal parameters of AEFPI, the AEFPI parameters are obtained as follows: T AEFI =383s, K AEFPI =2.393;

[0093] Before adopting the process input processing method for the heating steam temperature control system provided in the above embodiments, the simulation results obtained when the process input was a unit step were as follows: Figure 3 As shown.

[0094] Figure 3 As shown, the time for the process output PV(t) to rise to the unit step 1 is 252s, and the time for the process output PV(t) to rise to the peak PV is... MAX The time is 397s, PV MAX =1.2696, process overshoot is 26.96%, settling time is 921s.

[0095] The settling time refers to the time it takes for the process to reach a deviation of less than 5%.

[0096] In one embodiment, according to Figure 3 We obtain T1 = 252s, T2 = 397s, TD = T2 - T1 = 145s, T FOIF =T TOIF =T CD =T D =145s; the simulation results obtained, Figure 4 As shown.

[0097] Figure 4 As shown, the process overshoot is 0%, and the settling time is 524s.

[0098] It is evident that the process setpoint processing method of the heating steam temperature control system of the present invention significantly reduces process overshoot and significantly reduces settling time.

[0099] One embodiment of this application discloses a process input processing device for a heating steam temperature control system, comprising: a first-order inertial filter, a conventional differentiator, a third-order inertial filter, and an adder; an external process input signal source is connected to the input terminals of the first-order inertial filter and the conventional differentiator, respectively; the output terminal of the first-order inertial filter is connected to the input terminal of the third-order inertial filter, the output terminal of the third-order inertial filter is connected to the first input terminal of the adder, the output terminal of the conventional differentiator is connected to the second input terminal of the adder, and the adder is connected to an external accelerated engineering maximum speed proportional-integral controller.

[0100] The first-order inertial filter obtains and processes the process input signal of the heating steam temperature control system of the heating thermal power unit, and then inputs the output signal of the first-order inertial filter into the third-order inertial filter.

[0101] The third-order inertial filter inputs its output signal to the first input terminal of the adder.

[0102] The conventional differentiator differentiates the given signal for the process, and the resulting differentiated signal is input to the second input terminal of the adder.

[0103] The adder adds the output signal of the third-order inertial filter to the differential signal to obtain the process command signal of the acceleration-type maximum speed control system.

[0104] Those skilled in the art will understand that, for the sake of convenience and brevity, the specific working process of the system described above can be referred to the corresponding process in the foregoing method embodiments, and will not be elaborated upon here.

[0105] For example, the Laplace transfer function of the first-order inertial filter is:

[0106]

[0107] Among them, f FOIF (s) is the Laplace transfer function of the first-order inertial filter; T FOIF is the time constant of the first-order inertial filter, in seconds.

[0108] For example, a conventional differentiator (CD) is...

[0109]

[0110] Among them, f CD (s) is the Laplace transfer function of a conventional differentiator; T CD is the time constant of a conventional differentiator, in seconds.

[0111] For example, the Laplace transfer function of the third-order inertial filter is:

[0112]

[0113] Among them, f TOIF (s) is the Laplace transfer function of the third-order inertial filter; T TOIF is the time constant of the third-order inertial filter, in seconds.

[0114] For example, it also includes: a time constant setting module, used to: obtain the step amplitude value of a process-given signal;

[0115] The first moment when the output of the acquisition process rises to the step amplitude value;

[0116] The second time when the output of the acquisition process rises to its peak;

[0117] Obtain the time difference between the second time and the first time;

[0118] The time constants of the first-order inertial filter and the third-order inertial filter are set according to the time difference.

[0119] For example, the Laplace transfer function of the process given signal in an acceleration-type maximum speed control system is:

[0120]

[0121] Among them, f AEFCSPGP (s) is the Laplace transfer function of the given process of the fastest control system for accelerated engineering; f FOIF (s) is the Laplace transfer function of a first-order inertial filter, T FOIF f is the time constant of a first-order inertial filter, in seconds; TOIF (s) is the Laplace transfer function of the third-order inertial filter, T TOIF f is the time constant of the third-order inertial filter, in seconds; CD (s) is the Laplace transfer function of a conventional differentiator; T CD is the time constant of a conventional differentiator.

[0122] Compared to existing technologies, this invention provides a process input processing device for a heating steam temperature control system. This device processes the process input signal of the heating steam temperature control system in four steps: first-order inertial filtering, differentiation, third-order inertial filtering, and addition. In summary, these four processing steps suppress process overshoot in the accelerated maximum speed control system of the heating steam temperature control system, significantly reduce settling time, and improve the control performance of the accelerated engineering maximum speed proportional-integral controller.

[0123] One embodiment of this application provides an electronic device, including a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor. When the processor executes the computer program, it implements the process given processing method of the heating steam temperature control system as described above.

[0124] One embodiment of this application provides a computer-readable storage medium storing a computer program that, when executed by a processor, implements the process given processing method of the heating steam temperature control system as described above.

[0125] The computer device may be a smartphone, tablet, desktop computer, or cloud server, among other computing devices. This computer device may include, but is not limited to, a processor and memory. Those skilled in the art will understand that the figures are merely examples of computer devices and do not constitute a limitation on the computer device. It may include more or fewer components than illustrated, or a combination of certain components, or different components, such as input / output devices, network access devices, etc.

[0126] The processor referred to can be a Central Processing Unit (CPU), but it can also be other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor can be a microprocessor or any conventional processor.

[0127] In some embodiments, the memory may be an internal storage unit of the computer device, such as a hard drive or RAM. In other embodiments, the memory may be an external storage device of the computer device, such as a plug-in hard drive, Smart Media Card (SMC), Secure Digital (SD) card, or Flash Card. Furthermore, the memory may include both internal and external storage units of the computer device. The memory is used to store the operating system, applications, bootloader, data, and other programs, such as the program code of the computer program. The memory can also be used to temporarily store data that has been output or will be output.

[0128] This application provides a computer program product that, when run on a computer device, enables the computer device to execute the steps described in the various method embodiments above.

[0129] In the several embodiments provided in this application, it will be understood that each block in the flowchart or block diagram may represent a module, segment, or portion of code containing one or more executable instructions for implementing a specified logical function. It should also be noted that in some alternative implementations, the functions marked in the blocks may occur in a different order than those shown in the figures. For example, two consecutive blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved.

[0130] If the aforementioned functions are implemented as software functional modules and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or a portion of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0131] The above description represents the preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and these improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A process input processing method for a heating steam temperature control system, characterized in that, include: The process input signal of the heating steam temperature control system of the heating thermal power unit is input into a first-order inertial filter. Differentiate the given signal in the process to obtain the differential signal; The output signal of the first-order inertial filter is input into the third-order inertial filter; The output signal of the third-order inertial filter is added to the differential signal to obtain the process command signal of the acceleration-type maximum speed control system.

2. The process input processing method for the heating steam temperature control system as described in claim 1, characterized in that, The Laplace transfer function of the first-order inertial filter is: Among them, f FOIF (s) is the Laplace transfer function of the first-order inertial filter; T FOIF is the time constant of the first-order inertial filter.

3. The process input processing method for the heating steam temperature control system as described in claim 1, characterized in that, The Laplace transfer function of the third-order inertial filter: Among them, f TOIF (s) is the Laplace transfer function of the third-order inertial filter; T TOIF is the time constant of the third-order inertial filter.

4. The process input processing method for the heating steam temperature control system as described in claim 1, characterized in that, Before inputting the process command signal of the heating steam temperature control system of the heating power unit into the first-order inertial filter, the method further includes: Obtain the step amplitude of the given signal during the acquisition process; The first moment when the output of the acquisition process rises to the step amplitude value; The second time when the output of the acquisition process rises to its peak; Calculate the time difference between the second time and the first time; The time constants of the first-order inertial filter and the third-order inertial filter are set according to the time difference.

5. The process input processing method for the heating steam temperature control system as described in claim 1, characterized in that, The Laplace transfer function of the given signal in the acceleration-type maximum speed control system is: Among them, f AEFCSPGP (s) is the Laplace transfer function of the given process of the fastest control system for accelerated engineering; f FOIF (s) is the Laplace transfer function of a first-order inertial filter, T FOIF f is the time constant of a first-order inertial filter, in seconds; TOIF (s) is the Laplace transfer function of the third-order inertial filter, T TOIF f is the time constant of the third-order inertial filter, in seconds; CD (s) is the Laplace transfer function of a conventional differentiator; T CD is the time constant of a conventional differentiator.

6. A process input processing device for a heating steam temperature control system, characterized in that, include: The system comprises a first-order inertial filter, a conventional differentiator, a third-order inertial filter, and an adder. An external process input signal source is connected to the input terminals of the first-order inertial filter and the conventional differentiator, respectively. The output terminal of the first-order inertial filter is connected to the input terminal of the third-order inertial filter. The output terminal of the third-order inertial filter is connected to the first input terminal of the adder. The output terminal of the conventional differentiator is connected to the second input terminal of the adder. The adder is connected to an external accelerated engineering speed proportional-integral controller. The first-order inertial filter obtains and processes the process input signal of the heating steam temperature control system of the heating thermal power unit, and then inputs the output signal of the first-order inertial filter into the third-order inertial filter. The third-order inertial filter inputs its output signal to the first input terminal of the adder; The conventional differentiator differentiates the given signal for the process, and the resulting differentiated signal is input to the second input terminal of the adder. The adder adds the output signal of the third-order inertial filter to the differential signal to obtain the process command signal of the acceleration-type maximum speed control system.

7. The process input processing device for the heating steam temperature control system as described in claim 6, characterized in that, The Laplace transfer function of the first-order inertial filter is: Among them, f FOIF (s) is the Laplace transfer function of the first-order inertial filter; T FOIF is the time constant of the first-order inertial filter, in seconds.

8. The process input processing device for the heating steam temperature control system as described in claim 6, characterized in that, The Laplace transfer function of the third-order inertial filter is: Among them, f TOIF (s) is the Laplace transfer function of the third-order inertial filter; T TOIF is the time constant of the third-order inertial filter, in seconds.

9. The process input processing device for the heating steam temperature control system as described in claim 6, characterized in that, It also includes a time constant setting module, used for: Obtain the step amplitude of the given signal during the acquisition process; The first moment when the output of the acquisition process rises to the step amplitude value; The second time when the output of the acquisition process rises to its peak; Obtain the time difference between the second time and the first time; The time constants of the first-order inertial filter and the third-order inertial filter are set according to the time difference.

10. The process input processing device for the heating steam temperature control system as described in claim 6, characterized in that, The Laplace transfer function of the given signal in the acceleration-type maximum speed control system is: Among them, f AEFCSPGP (s) is the Laplace transfer function of the given process of the fastest control system for accelerated engineering; f FOIF (s) is the Laplace transfer function of a first-order inertial filter, T FOIF f is the time constant of a first-order inertial filter, in seconds; TOIF (s) is the Laplace transfer function of the third-order inertial filter, T TOIF f is the time constant of the third-order inertial filter, in seconds; CD (s) is the Laplace transfer function of a conventional differentiator; T CD is the time constant of a conventional differentiator.

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