CN115370429A - High-temperature gas cooled reactor steam turbine control method and device and storage medium - Google Patents

High-temperature gas cooled reactor steam turbine control method and device and storage medium Download PDF

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Publication number
CN115370429A
CN115370429A CN202211021492.3A CN202211021492A CN115370429A CN 115370429 A CN115370429 A CN 115370429A CN 202211021492 A CN202211021492 A CN 202211021492A CN 115370429 A CN115370429 A CN 115370429A
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China
Prior art keywords
rotating speed
actual
pressure
speed
target
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CN202211021492.3A
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Chinese (zh)
Inventor
杨强强
张冀兰
蒋勇
杨加东
张晓斌
刘华
柯海鹏
赵燕子
洪伟
孙迎
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Huaneng Nuclear Energy Technology Research Institute Co Ltd
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Huaneng Nuclear Energy Technology Research Institute Co Ltd
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Priority to CN202211021492.3A priority Critical patent/CN115370429A/en
Publication of CN115370429A publication Critical patent/CN115370429A/en
Pending legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D17/00—Regulating or controlling by varying flow
    • F01D17/10—Final actuators
    • F01D17/105—Final actuators by passing part of the fluid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D19/00—Starting of machines or engines; Regulating, controlling, or safety means in connection therewith
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/18—Structural association of electric generators with mechanical driving motors, e.g. with turbines
    • H02K7/1807—Rotary generators
    • H02K7/1823—Rotary generators structurally associated with turbines or similar engines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2270/00—Control
    • F05D2270/01—Purpose of the control system
    • F05D2270/02—Purpose of the control system to control rotational speed (n)
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00—Energy generation of nuclear origin

Abstract

The invention provides a high-temperature gas cooled reactor steam turbine control method, a device and a storage medium, and relates to the technical field of nuclear power plant control, wherein the method comprises the following steps: responding to the fact that the actual rotating speed of a high-temperature gas cooled reactor steam turbine is smaller than the target rotating speed, controlling valve positions of a main throttle valve and a speed regulating throttle valve of the steam turbine according to the actual rotating speed and the target rotating speed, enabling the rotating speed of the steam turbine to rise to the target rotating speed, responding to the fact that the steam turbine reaches the target rotating speed and enables a generator to carry an initial load, controlling the speed regulating throttle valve to the target valve position, responding to a grid-connected working condition, controlling the valve positions of the main throttle valve and the speed regulating throttle valve according to the actual main steam pressure and the target pressure of the steam turbine, enabling the main steam pressure of the steam turbine to be maintained at the target pressure, enabling the high-temperature gas cooled reactor to be in a zero rotating speed initial state to a normal operation state, enabling the steam turbine to operate according to an expected mode, and guaranteeing safe and efficient operation of a unit.

Description

High-temperature gas cooled reactor steam turbine control method and device and storage medium
Technical Field
The disclosure relates to the technical field of nuclear power plant control, in particular to a high-temperature gas cooled reactor steam turbine control method, device and storage medium.
Background
At present, large-scale thermal power generating units and pressurized water reactor units both adopt a 'reactor-following' operation mode, namely, main steam pressure in front of a steam turbine is regulated by a reactor control system, and the steam turbine control system realizes a steam turbine load tracking power grid dispatching instruction by regulating the opening of a steam valve. In the related technology, the reactor of the high-temperature gas-cooled reactor engineering adopts a ball bed type, and when the power changes, the response time of the reactor is longer, so that a 'set load' operation mode, namely 'machine following reactor' is adopted. However, the operation mode of the 'machine-following-reactor' causes that the steam turbine cannot receive a power grid dispatching instruction and cannot execute automatic tracking of load, thereby influencing the safe and efficient operation of a high-temperature gas-cooled reactor unit.
Disclosure of Invention
The present disclosure provides a method and an apparatus for controlling a high temperature gas cooled reactor steam turbine, and a storage medium, which are intended to solve at least one of the technical problems in the related art to some extent.
An embodiment of the first aspect of the disclosure provides a control method for a high temperature gas cooled reactor steam turbine, which includes: responding to the fact that the actual rotating speed of the high-temperature gas cooled reactor steam turbine is smaller than the target rotating speed, controlling valve positions of a main valve and a speed regulating valve of the steam turbine according to the actual rotating speed and the target rotating speed, and enabling the rotating speed of the steam turbine to rise to the target rotating speed; controlling a speed regulating valve to a target valve position in response to the steam turbine reaching a target rotating speed and enabling a generator to carry an initial load; and responding to the grid-connected working condition, and controlling the valve positions of the main throttle valve and the speed regulating throttle valve according to the actual main steam pressure and the target pressure of the steam turbine so as to maintain the main steam pressure of the steam turbine at the target pressure.
An embodiment of a second aspect of the present disclosure provides a high temperature gas cooled reactor steam turbine control device, including: the first control module is used for responding that the actual rotating speed of the high-temperature gas cooled reactor steam turbine is smaller than the target rotating speed, and controlling the valve positions of a main throttle valve and a speed regulating throttle valve of the steam turbine according to the actual rotating speed and the target rotating speed so as to enable the rotating speed of the steam turbine to be increased to the target rotating speed; the second control module is used for responding to the fact that the steam turbine reaches the target rotating speed and enables the generator to carry the initial load, and controlling the speed-regulating valve to reach the target valve position; and the third control module is used for responding to the grid-connected working condition, controlling the valve positions of the main throttle valve and the speed regulating throttle valve according to the actual main steam pressure and the target pressure of the steam turbine, and maintaining the main steam pressure of the steam turbine at the target pressure.
An embodiment of a third aspect of the present disclosure provides an electronic device, including: at least one processor; and a memory communicatively coupled to the at least one processor; wherein the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the method of controlling a high temperature gas cooled reactor steam turbine according to an embodiment of the disclosure.
A fourth aspect of the present disclosure provides a non-transitory computer readable storage medium storing computer instructions for causing a computer to execute a high temperature gas cooled reactor steam turbine control method disclosed in an embodiment of the present disclosure.
In the embodiment, the actual rotating speed of the high-temperature gas cooled reactor steam turbine is responded to be smaller than the target rotating speed, the valve positions of a main throttle valve and a speed regulating throttle valve of the steam turbine are controlled according to the actual rotating speed and the target rotating speed, the speed regulating throttle valve is controlled to the target valve position according to the fact that the steam turbine reaches the target rotating speed and the generator carries an initial load, the valve positions of the main throttle valve and the speed regulating throttle valve are controlled according to the actual main steam pressure and the target pressure of the steam turbine in response to the grid-connected working condition, the main steam pressure of the steam turbine is maintained at the target pressure, the steam turbine can be operated according to an expected mode from the zero rotating speed initial state to the normal operation state in the high-temperature gas cooled reactor, the load control of the steam turbine is carried out without receiving a power grid dispatching instruction in the process, the control problem of 'machine-following reactor' is solved, and the safe and efficient operation of the unit is guaranteed.
Additional aspects and advantages of the disclosure will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the disclosure.
Drawings
The foregoing and/or additional aspects and advantages of the present disclosure will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic flow chart of a turbine control method for a high temperature gas cooled reactor provided according to an embodiment of the present disclosure;
FIG. 2 is a schematic flow chart diagram illustrating a method for controlling a turbine of a high temperature gas cooled reactor according to another embodiment of the present disclosure;
FIG. 3 is a schematic flow diagram illustrating a high temperature gas cooled reactor turbine control provided in accordance with an embodiment of the present disclosure;
FIG. 4 is a schematic diagram of a high temperature gas cooled reactor turbine control apparatus provided in accordance with another embodiment of the present disclosure;
FIG. 5 illustrates a block diagram of an exemplary electronic device suitable for use in implementing embodiments of the present disclosure.
Detailed Description
Reference will now be made in detail to the embodiments of the present disclosure, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of illustrating the present disclosure and should not be construed as limiting the same. On the contrary, the embodiments of the disclosure include all changes, modifications and equivalents coming within the spirit and terms of the claims appended hereto.
It should be noted that the execution subject of the high temperature gas cooled reactor steam turbine control method of the embodiment may be a high temperature gas cooled reactor steam turbine control apparatus, which may be implemented by software and/or hardware, and the apparatus may be configured in electronic equipment, and the electronic equipment may include, but is not limited to, a terminal, a server, and the like.
Fig. 1 is a schematic flow chart of a control method for a turbine of a high temperature gas cooled reactor according to an embodiment of the present disclosure, as shown in fig. 1, the method includes:
s101: and responding to the fact that the actual rotating speed of the high-temperature gas cooled reactor steam turbine is smaller than the target rotating speed, and controlling valve positions of a main throttle valve and a speed regulating throttle valve of the steam turbine according to the actual rotating speed and the target rotating speed to enable the rotating speed of the steam turbine to be increased to the target rotating speed.
According to the embodiment of the control method, three control modes, namely a rotating speed mode, a valve control mode and a pressure control mode, can be provided for the high-temperature gas cooled reactor steam turbine from a zero rotating speed initial state to a normal operation state, the three control modes respectively use the rotating speed of the steam turbine, the opening degree of a steam turbine adjuster and the main steam pressure before the steam turbine as controlled objects, and the steam turbine is ensured to operate according to an expected mode.
In the embodiment of the disclosure, after the steam turbine is switched on and operates, the steam turbine can be controlled by adopting a rotating speed mode, and the steam turbine does not drive the generator to be connected to the grid in the rotating speed mode.
The target rotational speed is a critical rotational speed set for the steam turbine in the rotational speed mode, that is, if the actual rotational speed of the steam turbine exceeds the target rotational speed, the rotational speed mode is exited. The target rotation speed can be flexibly set according to the operating state of the steam turbine, for example, the target rotation speed of this embodiment can be set to 3000r/min.
The rotating speed of the steam turbine in the actual operation process may be referred to as an actual rotating speed, and the actual rotating speed may be obtained through a rotating speed detection device configured for the steam turbine, such as a tachometer and a sensor, without limitation.
In this embodiment, after the actual rotation speed of the steam turbine is obtained, the actual rotation speed may be compared with the target rotation speed, and under the condition that the actual rotation speed is less than the target rotation speed, the valve positions of the main throttle and the speed regulation throttle of the steam turbine are controlled according to the actual rotation speed and the target rotation speed, so as to adjust the opening degrees of the main throttle and the speed regulation throttle, so that the steam turbine finishes warming up and passing through the critical rotation speed region until the rotation speed is increased to the target rotation speed, for example, 3000r/min.
In the rotating speed mode control process, for example, a target rotating speed and an actual rotating speed can be input to a rotating speed PID controller, and the rotating speed PID controller controls the valve positions (openings) of the main throttle valve and the speed regulating throttle valve according to the deviation value of the speed, so as to realize the control of the rotating speed of the steam turbine. Some embodiments may also perform rate limiting in the speed mode, namely: and limiting the speed increasing rate of the rotating speed of the steam turbine, wherein the speed increasing rate can be flexibly set according to the actual application scene, and the speed increasing rate is not limited.
S102: and controlling the speed regulating valve to the target valve position in response to the steam turbine reaching the target rotating speed and enabling the generator to carry the initial load.
After the rotating speed of the steam turbine reaches the target rotating speed (for example, 3000 r/min), power generation grid connection can be carried out, namely: the generator is initially loaded. In this case, the present embodiment may switch the control mode from the rotation speed mode to the valve control mode, and when the generator carries an initial load, the present embodiment may control the speed control valve to reach the target valve position (i.e., the valve control mode) at the set valve position change rate, so as to avoid occurrence of reverse power during the initial load. The valve position change rate and the target valve position can be flexibly set according to the actual application scene, and no limitation is imposed on the valve position change rate and the target valve position.
It should be noted that, in this embodiment, the valve control mode may be adopted in the process of the initial load on the generator belt, so the valve control mode is short in duration, and in practical applications, the valve control mode may not be adopted.
S103: and responding to the grid-connected working condition, and controlling the valve positions of the main throttle valve and the speed regulating throttle valve according to the actual main steam pressure and the target pressure of the steam turbine so as to maintain the main steam pressure of the steam turbine at the target pressure.
The generator enters a power generation grid-connected working condition after carrying initial load, and in the grid-connected process, the steam turbine can be controlled by adopting a pressure control mode. Specifically, in the pressure control mode, the present embodiment may control the valve positions (opening degrees) of the main throttle and the speed regulation throttle according to the actual main steam pressure and the target pressure of the steam turbine, so that the main steam pressure of the steam turbine is maintained at the target pressure.
The actual main steam pressure of the steam turbine under the power generation grid-connected working condition may be referred to as an actual main steam pressure, and the actual main steam pressure may be obtained, for example, through a pressure gauge configured for the steam turbine, which is not limited to this.
The target pressure is a rated pressure set for the steam turbine during power generation grid connection, and the target pressure can be flexibly set according to the working state of the steam turbine without limitation.
In some embodiments, a set threshold for entering the pressure controlled mode may also be set, and the pressure controlled mode is entered when the actual main steam pressure is greater than the set threshold. Wherein the set threshold may be related to the target pressure, for example: when the grid-connected operating condition is met and the actual main steam pressure is greater than 20% of the target pressure (i.e., the threshold value is set), the valve positions of the main throttle and the speed regulating throttle can be controlled according to the actual main steam pressure and the target pressure, so that the main steam pressure of the steam turbine is maintained at the target pressure.
In the pressure control mode control process, for example, the target pressure and the actual main steam pressure may be input to a pressure PID controller, and the pressure PID controller controls the valve positions (opening degrees) of the main throttle and the speed regulating throttle according to the deviation value of the pressure, so that the main steam pressure of the steam turbine is maintained at the target pressure.
In the embodiment, the actual rotating speed of the high-temperature gas cooled reactor steam turbine is responded to be smaller than the target rotating speed, the valve positions of a main throttle valve and a speed regulating throttle valve of the steam turbine are controlled according to the actual rotating speed and the target rotating speed, the speed regulating throttle valve is controlled to the target valve position according to the fact that the steam turbine reaches the target rotating speed and the generator carries an initial load, the valve positions of the main throttle valve and the speed regulating throttle valve are controlled according to the actual main steam pressure and the target pressure of the steam turbine in response to the grid-connected working condition, the main steam pressure of the steam turbine is maintained at the target pressure, the steam turbine can be operated according to an expected mode from the zero rotating speed initial state to the normal operation state in the high-temperature gas cooled reactor, the load control of the steam turbine is carried out without receiving a power grid dispatching instruction in the process, the control problem of 'machine-following reactor' is solved, and the safe and efficient operation of the unit is guaranteed.
Fig. 2 is a schematic flow chart of a control method for a turbine of a high temperature gas cooled reactor according to another embodiment of the present disclosure, as shown in fig. 2, the method includes:
s201: the actual rotation speed and the target rotation speed are input to a rotation speed PID controller to output a rotation speed control amount.
Fig. 3 is a schematic diagram illustrating a turbine control flow of a high temperature gas cooled reactor according to an embodiment of the present disclosure, and as shown in fig. 3, in the rotational speed mode, in the embodiment, an actual rotational speed and a target rotational speed may be input to a rotational speed PID controller to output a rotational speed control amount.
In some embodiments, the steam turbine may be configured with a plurality of speed detection devices, so that a plurality of actual speeds may be obtained, for example: a first actual rotating speed (turbine rotating speed input 1), a second actual rotating speed (turbine rotating speed input 2), a third actual rotating speed (turbine rotating speed input 3) and the like, and the middle rotating speed value of the first actual rotating speed, the second actual rotating speed and the third actual rotating speed can be determined in the embodiment; further, the rotation speed median value and the target rotation speed are input to a rotation speed PID controller to output a rotation speed control quantity.
S202: and determining a first main valve command and a first adjusting valve command corresponding to the rotating speed control quantity based on the main valve flow characteristic curve and the adjusting valve flow characteristic curve.
The flow characteristic curve is used for describing the relation between the relative flow and the relative opening of the valve, namely: the main valve of the present embodiment may have a corresponding main valve flow characteristic curve, and the speed control valve may have a corresponding speed control valve flow characteristic curve.
After the rotating speed PID controller outputs the rotating speed control quantity, the embodiment may convert the rotating speed control quantity based on the main valve flow characteristic curve and the throttle flow characteristic curve to obtain a first main valve command for controlling the valve position of the main valve and a first throttle command for controlling the speed-adjusting valve.
S203: and controlling the valve positions of the main throttle valve and the speed regulating throttle valve according to the first main throttle valve instruction and the first regulating valve instruction.
That is, in the rotating speed mode, according to the first main throttle command and the first regulating throttle command, the valve positions of the main throttle and the regulating throttle are controlled, so that the rotating speed of the steam turbine is increased to the target rotating speed.
Therefore, the embodiment can take the rotating speed median value of a plurality of actual rotating speeds as the input of the rotating speed PID controller, thereby improving the accuracy of the control result; in addition, the rotating speed control amount is converted by adopting the flow characteristic curve, so that the valve opening degree control is more accurate.
S204: and controlling the speed regulating valve to the target valve position in response to the steam turbine reaching the target rotating speed and enabling the generator to carry the initial load.
For the description of S204, reference is made to the above embodiments specifically, and details are not repeated here.
S205: the actual main steam pressure and the target pressure are input to a pressure PID controller to output a pressure control amount.
In the pressure control mode, the present embodiment may first input the actual main steam pressure and the target pressure to the pressure PID controller to output the pressure control amount.
In some embodiments, the main steam pressure of the steam turbine may be detected simultaneously to obtain a plurality of actual main steam pressures, for example: a first actual pressure (main steam pressure input 1), a second actual pressure (main steam pressure input 2), a third actual pressure (main steam pressure input 3), etc.; the embodiment can determine the pressure median of the first actual pressure, the second actual pressure and the third actual pressure; further, the pressure median value and the target pressure are input to a pressure PID controller to output a pressure control amount.
S206: a second main throttle command and a second throttle command corresponding to the pressure control amount are determined based on the main throttle flow characteristic curve and the throttle flow characteristic curve.
After the pressure PID controller outputs the pressure control amount, the embodiment may convert the pressure control amount based on the main valve flow characteristic curve and the throttle flow characteristic curve to obtain a second main valve command for controlling the main valve and a second throttle command for controlling the speed control valve.
S207: and controlling the valve positions of the main throttle valve and the speed regulating throttle valve according to the second main throttle valve instruction and the second regulating valve instruction.
That is, in the pressure control mode, the valve positions of the main throttle and the speed regulation throttle are respectively controlled according to the second main throttle command and the second regulating throttle command, so that the main steam pressure of the steam turbine is maintained at the target pressure.
Therefore, the embodiment can take the pressure median values of a plurality of actual main steam pressures as the input of the pressure PID controller, thereby improving the accuracy of the control result; in addition, the flow characteristic curve is adopted to control the rotating speed, so that the valve opening degree is more accurately controlled.
In the embodiment, the actual rotating speed of the high-temperature gas cooled reactor steam turbine is responded to be smaller than the target rotating speed, the valve positions of a main throttle valve and a speed regulating throttle valve of the steam turbine are controlled according to the actual rotating speed and the target rotating speed, the speed regulating throttle valve is controlled to the target valve position according to the fact that the steam turbine reaches the target rotating speed and the generator carries an initial load, the valve positions of the main throttle valve and the speed regulating throttle valve are controlled according to the actual main steam pressure and the target pressure of the steam turbine in response to the grid-connected working condition, the main steam pressure of the steam turbine is maintained at the target pressure, the steam turbine can be operated according to an expected mode from the zero rotating speed initial state to the normal operation state in the high-temperature gas cooled reactor, the load control of the steam turbine is carried out without receiving a power grid dispatching instruction in the process, the control problem of 'machine-following reactor' is solved, and the safe and efficient operation of the unit is guaranteed. In addition, the embodiment can take the median value from a plurality of actual rotating speeds and a plurality of actual main steam pressures as the input of the PID controller, so that the calculation accuracy can be improved; further, since the rotation speed control amount and the pressure control amount are converted based on the flow characteristic curve, the valve opening degree control is more accurate.
In order to realize the embodiment, the disclosure also provides a high-temperature gas cooled reactor steam turbine control device.
Fig. 4 is a schematic diagram of a high temperature gas cooled reactor turbine control apparatus provided according to another embodiment of the present disclosure.
As shown in fig. 4, the high temperature gas cooled reactor turbine control device 40 includes:
the first control module 401 is used for responding that the actual rotating speed of the high-temperature gas cooled reactor steam turbine is smaller than the target rotating speed, and controlling the valve positions of a main throttle valve and a speed regulating throttle valve of the steam turbine according to the actual rotating speed and the target rotating speed so as to enable the rotating speed of the steam turbine to be increased to the target rotating speed;
a second control module 402, configured to control the speed regulation valve to a target valve position in response to the turbine reaching a target rotational speed and the generator bringing an initial load; and
and the third control module 403 is configured to control valve positions of the main throttle and the speed regulating throttle according to the actual main steam pressure and the target pressure of the steam turbine in response to the grid-connected working condition, so that the main steam pressure of the steam turbine is maintained at the target pressure.
In some embodiments, the first control module 401 is specifically configured to:
inputting the actual rotating speed and the target rotating speed into a rotating speed PID controller to output a rotating speed control quantity;
determining a first main valve instruction and a first valve adjusting instruction corresponding to the rotating speed control quantity based on the main valve flow characteristic curve and the valve adjusting flow characteristic curve; and
and controlling the valve positions of the main throttle valve and the speed regulating throttle valve according to the first main throttle valve instruction and the first regulating valve instruction.
In some embodiments, the actual rotation speeds include a first actual rotation speed, a second actual rotation speed, and a third actual rotation speed, and the first control module 401 is specifically configured to:
determining a rotation speed median value of the first actual rotation speed, the second actual rotation speed and the third actual rotation speed; and
and inputting the rotating speed median value and the target rotating speed into a rotating speed PID controller to output a rotating speed control quantity.
In some embodiments, the third control module 403 is specifically configured to:
inputting the actual main steam pressure and the target pressure to a pressure PID controller to output a pressure control quantity;
determining a second main throttle command and a second throttle command corresponding to the pressure control quantity based on the main throttle flow characteristic curve and the throttle flow characteristic curve; and
and controlling the valve positions of the main throttle valve and the speed regulating throttle valve according to the second main throttle valve instruction and the second regulating valve instruction.
In some embodiments, the actual main steam pressure comprises a first actual pressure, a second actual pressure, and a third actual pressure, and the third control module 403 is specifically configured to:
determining a median pressure value of the first actual pressure, the second actual pressure and the third actual pressure; and
the pressure median value and the target pressure are input to a pressure PID controller to output a pressure control amount.
In some embodiments, the third control module 403 is specifically configured to:
and responding to grid connection working conditions and controlling valve positions of a main valve and a speed regulating valve according to the actual main steam pressure and a target pressure, wherein the actual main steam pressure is larger than a set threshold, and the set threshold is related to the target pressure.
In the embodiment, the actual rotating speed of the high-temperature gas cooled reactor steam turbine is responded to be less than the target rotating speed, the valve positions of a main throttle valve and a speed regulating throttle valve of the steam turbine are controlled according to the actual rotating speed and the target rotating speed, the speed regulating throttle valve is controlled to the target valve position according to the fact that the steam turbine reaches the target rotating speed and the generator carries the initial load, the valve positions of the main throttle valve and the speed regulating throttle valve are controlled according to the actual main steam pressure and the target pressure of the steam turbine in response to the grid-connected working condition, the main steam pressure of the steam turbine is maintained at the target pressure, the zero-rotating-speed initial state of the high-temperature gas cooled reactor can be controlled to be in the normal running state, the steam turbine runs according to an expected mode, the process does not need to receive a power grid dispatching instruction to carry out load control, the problem of 'machine-to-pile' control is solved, and safe and efficient running of a unit is guaranteed.
The present disclosure also provides an electronic device, a readable storage medium, and a computer program product according to embodiments of the present disclosure.
In order to implement the foregoing embodiments, the present disclosure further provides a computer program product, which when executed by an instruction processor in the computer program product, executes the method for controlling a high temperature gas cooled reactor steam turbine as set forth in the foregoing embodiments of the present disclosure.
FIG. 5 illustrates a block diagram of an exemplary electronic device suitable for use in implementing embodiments of the present disclosure. The electronic device 12 shown in fig. 5 is only an example and should not bring any limitations to the functionality and scope of use of the embodiments of the present disclosure.
As shown in FIG. 5, electronic device 12 is embodied in the form of a general purpose computing device. The components of electronic device 12 may include, but are not limited to: one or more processors or processing units 16, a system memory 28, and a bus 18 that couples various system components including the system memory 28 and the processing unit 16.
Bus 18 represents one or more of any of several types of bus structures, including a memory bus or memory controller, a peripheral bus, an accelerated graphics port, and a processor or local bus using any of a variety of bus architectures. These architectures include, but are not limited to, industry Standard Architecture (ISA) bus, micro Channel Architecture (MAC) bus, enhanced ISA bus, video Electronics Standards Association (VESA) local bus, and Peripheral Component Interconnect (PCI) bus, to name a few.
Electronic device 12 typically includes a variety of computer system readable media. Such media may be any available media that is accessible by electronic device 12 and includes both volatile and nonvolatile media, removable and non-removable media.
Memory 28 may include computer system readable media in the form of volatile Memory, such as Random Access Memory (RAM) 30 and/or cache Memory 32. The electronic device 12 may further include other removable/non-removable, volatile/nonvolatile computer system storage media. By way of example only, storage system 34 may be used to read from and write to non-removable, nonvolatile magnetic media (not shown in FIG. 5, and commonly referred to as a "hard drive").
Although not shown in FIG. 5, a disk drive for reading from and writing to a removable, nonvolatile magnetic disk (e.g., a "floppy disk") and an optical disk drive for reading from or writing to a removable, nonvolatile optical disk (e.g., a Compact disk Read Only Memory (CD-ROM), a Digital versatile disk Read Only Memory (DVD-ROM), or other optical media) may be provided. In these cases, each drive may be connected to bus 18 by one or more data media interfaces. Memory 28 may include at least one program product having a set (e.g., at least one) of program modules that are configured to carry out the functions of embodiments of the disclosure.
A program/utility 40 having a set (at least one) of program modules 42 may be stored, for example, in memory 28, such program modules 42 including, but not limited to, an operating system, one or more application programs, other program modules, and program data, each of which examples or some combination thereof may comprise an implementation of a network environment. Program modules 42 generally perform the functions and/or methodologies of the embodiments described in this disclosure.
Electronic device 12 may also communicate with one or more external devices 14 (e.g., keyboard, pointing device, display 24, etc.), with one or more devices that enable a user to interact with electronic device 12, and/or with any devices (e.g., network card, modem, etc.) that enable electronic device 12 to communicate with one or more other computing devices. Such communication may be through an input/output (I/O) interface 22. Also, the electronic device 12 may communicate with one or more networks (e.g., a Local Area Network (LAN), a Wide Area Network (WAN), and/or a public Network such as the Internet) via the Network adapter 20. As shown, the network adapter 20 communicates with the other modules of the electronic device 12 over the bus 18. It should be understood that although not shown in the figures, other hardware and/or software modules may be used in conjunction with electronic device 12, including but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives, and data backup storage systems, among others.
The processing unit 16 executes a program stored in the system memory 28 to execute various functional applications, such as implementing the high temperature gas cooled reactor turbine control method mentioned in the foregoing embodiment.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
It should be noted that, in the description of the present disclosure, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Further, in the description of the present disclosure, "a plurality" means two or more unless otherwise specified.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and the scope of the preferred embodiments of the present disclosure includes other implementations in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the embodiments of the present disclosure.
It should be understood that portions of the present disclosure may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
It will be understood by those skilled in the art that all or part of the steps carried by the method for implementing the above embodiments may be implemented by hardware related to instructions of a program, which may be stored in a computer readable storage medium, and when the program is executed, the program includes one or a combination of the steps of the method embodiments.
In addition, functional units in the embodiments of the present disclosure may be integrated into one processing module, or each unit may exist alone physically, or two or more units are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. The integrated module, if implemented in the form of a software functional module and sold or used as a stand-alone product, may also be stored in a computer readable storage medium.
The storage medium mentioned above may be a read-only memory, a magnetic or optical disk, etc.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present disclosure have been shown and described above, it will be understood that the above embodiments are exemplary and not to be construed as limiting the present disclosure, and that changes, modifications, substitutions and alterations may be made to the above embodiments by those of ordinary skill in the art within the scope of the present disclosure.

Claims (10)

1. A control method for a high-temperature gas cooled reactor steam turbine is characterized by comprising the following steps:
responding to the fact that the actual rotating speed of a high-temperature gas cooled reactor steam turbine is smaller than a target rotating speed, and controlling valve positions of a main throttle valve and a speed regulating throttle valve of the steam turbine according to the actual rotating speed and the target rotating speed to enable the rotating speed of the steam turbine to be increased to the target rotating speed;
responding to the fact that the steam turbine reaches the target rotating speed and enables the generator to carry an initial load, and controlling the speed regulating valve to reach a target valve position; and
and responding to a grid connection working condition, and controlling the valve positions of the main throttle valve and the speed regulation throttle valve according to the actual main steam pressure and the target pressure of the steam turbine so as to maintain the main steam pressure of the steam turbine at the target pressure.
2. The method of claim 1, wherein said controlling the valve positions of the main and speed gates of the steam turbine based on the actual speed and the target speed comprises:
inputting the actual rotating speed and the target rotating speed to a rotating speed PID controller to output a rotating speed control quantity;
determining a first main throttle command and a first throttle command corresponding to the rotating speed control quantity based on a main throttle flow characteristic curve and a throttle flow characteristic curve; and
and controlling the valve positions of the main throttle valve and the speed regulating throttle valve according to the first main throttle valve instruction and the first regulating throttle instruction.
3. The method according to claim 2, wherein the actual rotational speeds include a first actual rotational speed, a second actual rotational speed, and a third actual rotational speed, and the inputting the actual rotational speeds and the target rotational speed to a rotational speed PID controller to output a rotational speed control amount includes:
determining a rotation speed median value of the first actual rotation speed, the second actual rotation speed and the third actual rotation speed; and
and inputting the rotating speed median value and the target rotating speed to the rotating speed PID controller so as to output the rotating speed control quantity.
4. The method of claim 1, wherein said controlling the positions of said main and governor gates based on actual main steam pressure and target pressure of said turbine comprises:
inputting the actual main steam pressure and the target pressure to a pressure PID controller to output a pressure control quantity;
determining a second main throttle command and a second throttle command corresponding to the pressure control quantity based on the main throttle flow characteristic curve and the throttle flow characteristic curve; and
and controlling the valve positions of the main throttle valve and the speed regulating throttle valve according to the second main throttle valve instruction and the second regulating throttle instruction.
5. The method as claimed in claim 4, wherein the actual main steam pressure includes a first actual pressure, a second actual pressure, and a third actual pressure, and the inputting the actual rotation speed and the target rotation speed to a rotation speed PID controller to output a rotation speed control amount includes:
determining a median pressure value of the first actual pressure, the second actual pressure, and the third actual pressure; and
inputting the pressure median value and the target pressure to the pressure PID controller to output the pressure control amount.
6. The method of claim 1, wherein said controlling valve positions of said main and governor gates based on actual main steam pressure and target pressure of said steam turbine in response to grid-tie conditions comprises:
in response to the grid-tie condition and the actual main steam pressure being greater than a set threshold, controlling valve positions of the main throttle and the speed governing throttle according to the actual main steam pressure and a target pressure, wherein the set threshold is related to the target pressure.
7. A high temperature gas cooled reactor steam turbine control apparatus, comprising:
the first control module is used for responding that the actual rotating speed of a high-temperature gas cooled reactor steam turbine is smaller than a target rotating speed, and controlling the valve positions of a main throttle valve and a speed regulating throttle valve of the steam turbine according to the actual rotating speed and the target rotating speed so as to enable the rotating speed of the steam turbine to be increased to the target rotating speed;
the second control module is used for responding to the fact that the steam turbine reaches the target rotating speed and enables the generator to carry an initial load, and controlling the speed regulation valve to reach a target valve position; and
and the third control module is used for responding to a grid-connected working condition, controlling the valve positions of the main throttle valve and the speed regulating throttle valve according to the actual main steam pressure and the target pressure of the steam turbine, and maintaining the main steam pressure of the steam turbine at the target pressure.
8. The apparatus of claim 7, wherein the first control module is specifically configured to:
inputting the actual rotating speed and the target rotating speed into a rotating speed PID controller to output a rotating speed control quantity;
determining a first main throttle command and a first throttle command corresponding to the rotating speed control quantity based on a main throttle flow characteristic curve and a throttle flow characteristic curve; and
and controlling the valve positions of the main throttle valve and the speed regulating throttle valve according to the first main throttle valve instruction and the first regulating throttle instruction.
9. The apparatus of claim 8, wherein the actual rotational speeds include a first actual rotational speed, a second actual rotational speed, and a third actual rotational speed, and the first control module is specifically configured to:
determining a rotation speed median value of the first actual rotation speed, the second actual rotation speed and the third actual rotation speed; and
and inputting the rotating speed median value and the target rotating speed to the rotating speed PID controller so as to output the rotating speed control quantity.
10. A non-transitory computer readable storage medium having stored thereon computer instructions for causing the computer to perform the method of any one of claims 1-6.
CN202211021492.3A 2022-08-24 2022-08-24 High-temperature gas cooled reactor steam turbine control method and device and storage medium Pending CN115370429A (en)

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Applications Claiming Priority (1)

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CN202211021492.3A CN115370429A (en) 2022-08-24 2022-08-24 High-temperature gas cooled reactor steam turbine control method and device and storage medium

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116430924A (en) * 2023-06-13 2023-07-14 百穰新能源科技(深圳)有限公司 Temperature control method, temperature control device, computer equipment and computer readable storage medium

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116430924A (en) * 2023-06-13 2023-07-14 百穰新能源科技(深圳)有限公司 Temperature control method, temperature control device, computer equipment and computer readable storage medium
CN116430924B (en) * 2023-06-13 2023-09-08 百穰新能源科技(深圳)有限公司 Temperature control method, temperature control device, computer equipment and computer readable storage medium

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