Steam turbine generator control method and related device

Abstract

The embodiments of this application disclose a steam turbine generator control method and related devices. First, the rated voltage regulation amount corresponding to the steam turbine generator at the target load can be determined. And when the voltage regulation amount is greater than this rated voltage regulation amount, it is highly likely that the hardware will be damaged due to excessive use of the hardware. Based on this, after obtaining the voltage regulation request corresponding to the steam turbine generator, the target voltage regulation amount of the request can be analyzed to determine whether it exceeds the rated voltage regulation amount. Based on the fact that the steam turbine generator is at the target load and the target voltage regulation amount is greater than the rated voltage regulation amount, the steam turbine generator can be controlled to provide the rated voltage regulation amount instead of the target voltage regulation amount, thereby reducing the probability of hardware loss of the steam turbine generator and maintaining the hardware safety of the steam turbine generator.

Description

Technical Field

[0001] This application relates to the field of numerical control technology, and particularly to a control method and related devices for turbo generators. Background Art

[0002] In order to reduce the dependence on fossil energy, the power system is in an important period of transformation towards clean, green and intelligent development. It is imperative to transition from fossil fuels to renewable energy generation, and renewable energy generation has become the main development trend of the power system.

[0003] Traditional thermal power units rely on their own instantaneous response characteristics and the control of the excitation system. After the system is subjected to a large disturbance, the reactive power output has a large adjustment range and has good transient voltage support ability. However, new energy units generally do not have voltage regulation ability, and their transient voltage support ability is different from that of traditional synchronous generator sets. Therefore, the access of high-penetration new energy units will have a greater impact on the transient voltage stability of the system.

[0004] In addition to building new types of synchronous condensers for the new energy power grid, enabling the turbo generator to achieve dynamic reactive power support ability is also an important path for dynamic reactive power compensation. While reducing the construction of synchronous condenser stations, it improves the stability of the power system. Previous technologies calculated the upper limit of reactive power output during strong excitation and the lower limit of reactive power output under underexcitation limit through electromagnetic calculations, and then obtained the specific value of the dynamic reactive power reserve of the turbo generator, ignoring the influence and limitation of the turbo generator itself on dynamic phase modulation, resulting in the problem that the hardware of the turbo generator is prone to damage during the process of phase modulation. Summary of the Invention

[0005] To solve the above technical problems, this application provides a control method for a turbo generator, which can effectively avoid hardware damage when the turbo generator performs voltage regulation.

[0006] The embodiments of this application disclose the following technical solutions:

[0007] In a first aspect, the embodiments of this application disclose a control method for a turbo generator, the method includes:

[0008] Determine the rated voltage regulation amount corresponding to the turbo generator under the target load. When the turbo generator achieves the rated voltage regulation amount under the target load, the hardware parameters corresponding to the constituent hardware that makes up the turbo generator are critical hardware parameters. The hardware parameters are used to characterize the degree of use of the constituent hardware. When the degree of use exceeds the target degree of use characterized by the critical hardware parameters, the damage probability of the constituent hardware is greater than the preset probability threshold;

[0009] Obtain a voltage regulation request corresponding to the steam turbine generator, where the voltage regulation request is used to request the steam turbine generator to provide a target voltage regulation amount;

[0010] Based on the steam turbine generator being at the target load and the target voltage regulation amount being greater than the rated voltage regulation amount, control the steam turbine generator to provide the rated voltage regulation amount.

[0011] In a possible implementation manner, the method further includes:

[0012] Based on the steam turbine generator being at the target load and the target voltage regulation amount not being greater than the rated voltage regulation amount, control the steam turbine generator to provide the target voltage regulation amount.

[0013] In a possible implementation manner, determining the rated voltage regulation amount corresponding to the steam turbine generator at the target load includes:

[0014] When the steam turbine generator is at the target load, control the steam turbine generator to provide a test voltage regulation amount, where the test voltage regulation amount is less than the initial voltage regulation amount threshold;

[0015] Determine the corresponding test hardware parameters of the steam turbine generator;

[0016] Based on the degree of use characterized by the test hardware parameters not reaching the target degree of use, increase the test voltage regulation amount, and re - execute the step of controlling the steam turbine generator to provide the test voltage regulation amount when the steam turbine generator is at the target load;

[0017] Based on the degree of use characterized by the test hardware parameters reaching the target degree of use, determine the test voltage regulation amount as the rated voltage regulation amount.

[0018] In a possible implementation manner, the hardware includes a journal, the hardware parameter is the fatigue life of the journal under stress impact, the test hardware parameter is the test fatigue life, and the step of increasing the test voltage regulation amount and re - executing the step of controlling the steam turbine generator to provide the test voltage regulation amount when the steam turbine generator is at the target load based on the degree of use characterized by the test hardware parameters not reaching the target degree of use includes:

[0019] Based on the test fatigue life being not less than the fatigue life threshold, increase the test voltage regulation amount, and re - execute the step of controlling the steam turbine generator to provide the test voltage regulation amount when the steam turbine generator is at the target load;

[0020] When the degree of use characterized by the test hardware parameters reaches the target degree of use, determining the test voltage adjustment amount as the rated voltage adjustment amount includes:

[0021] Based on the test fatigue life reaching the fatigue life, determining the test voltage adjustment amount as the rated voltage adjustment amount.

[0022] In a possible implementation, the constituent hardware includes a stator and a rotor, the hardware parameter is the stator-rotor temperature rise, the test hardware parameter is the test stator-rotor temperature rise, and when the degree of use characterized by the test hardware parameters does not reach the target degree of use, increasing the test voltage adjustment amount and re-executing the step of controlling the steam turbine generator to provide the test voltage adjustment amount when the steam turbine generator is at the target load, includes:

[0023] Based on the test stator-rotor temperature rise not being greater than the stator-rotor temperature rise threshold, increasing the test voltage adjustment amount and re-executing the step of controlling the steam turbine generator to provide the test voltage adjustment amount when the steam turbine generator is at the target load;

[0024] When the degree of use characterized by the test hardware parameters reaches the target degree of use, determining the test voltage adjustment amount as the rated voltage adjustment amount includes:

[0025] Based on the test stator-rotor temperature rise reaching the stator-rotor temperature rise threshold, determining the test voltage adjustment amount as the rated voltage adjustment amount.

[0026] In a possible implementation, the constituent hardware includes a stator, the hardware parameter is the stator parameter, the test hardware parameter is the test stator parameter, the stator parameter includes any one of stator voltage, stator current, and excitation current, and when the degree of use characterized by the test hardware parameters does not reach the target degree of use, increasing the test voltage adjustment amount and re-executing the step of controlling the steam turbine generator to provide the test voltage adjustment amount when the steam turbine generator is at the target load, includes:

[0027] Based on the test stator parameter not being greater than the stator parameter threshold, increasing the test voltage adjustment amount and re-executing the step of controlling the steam turbine generator to provide the test voltage adjustment amount when the steam turbine generator is at the target load;

[0028] When the degree of use characterized by the test hardware parameters reaches the target degree of use, determining the test voltage adjustment amount as the rated voltage adjustment amount includes:

[0029] Based on the test stator parameters reaching the stator parameter threshold, determine the test voltage adjustment amount as the rated voltage adjustment amount.

[0030] In a possible implementation, the constituent hardware includes multiple pieces of constituent hardware. Based on the usage degree characterized by the test hardware parameters reaching the target usage degree, determining the test voltage adjustment amount as the rated voltage adjustment amount includes:

[0031] Based on the usage degree characterized by the test hardware parameters corresponding to the target constituent hardware reaching the target usage degree, determine the test voltage adjustment amount corresponding to the target constituent hardware as the maximum voltage adjustment amount corresponding to the target constituent hardware, where the target constituent hardware is any one of the multiple pieces of constituent hardware;

[0032] Based on the maximum voltage adjustment amount corresponding to the target constituent hardware being the minimum among the maximum voltage adjustment amounts corresponding to the multiple pieces of constituent hardware respectively, determine the maximum voltage adjustment amount corresponding to the target constituent hardware as the rated voltage adjustment amount.

[0033] In a second aspect, an embodiment of the present application discloses a steam turbine generator control device, and the device includes a determination unit, an acquisition unit, and a first control unit:

[0034] The determination unit is configured to determine the rated voltage adjustment amount corresponding to the steam turbine generator under a target load. When the steam turbine generator is under the target load and realizes the rated voltage adjustment amount, the hardware parameters corresponding to the constituent hardware used to form the steam turbine generator are critical hardware parameters. The hardware parameters are used to characterize the usage degree of the constituent hardware. When the usage degree exceeds the target usage degree characterized by the critical hardware parameters, the damage probability of the constituent hardware is greater than a preset probability threshold;

[0035] The acquisition unit is configured to acquire a voltage adjustment request corresponding to the steam turbine generator, and the voltage adjustment request is used to request the steam turbine generator to provide a target voltage adjustment amount;

[0036] The first control unit is configured to control the steam turbine generator to provide the rated voltage adjustment amount based on the steam turbine generator being under the target load and the target voltage adjustment amount being greater than the rated voltage adjustment amount.

[0037] In a possible implementation, the device further includes a second control unit:

[0038] The second control unit is configured to control the steam turbine generator to provide the target voltage adjustment amount based on the steam turbine generator being under the target load and the target voltage adjustment amount not being greater than the rated voltage adjustment amount.

[0039] In a possible implementation, the determining unit is specifically configured to:

[0040] When the steam turbine generator is at the target load, control the steam turbine generator to provide a test voltage adjustment amount, where the test voltage adjustment amount is less than the initial voltage adjustment amount threshold;

[0041] Determine the test hardware parameters corresponding to the steam turbine generator;

[0042] Based on the degree of use characterized by the test hardware parameters not reaching the target degree of use, increase the test voltage adjustment amount, and re - execute the step of controlling the steam turbine generator to provide the test voltage adjustment amount when the steam turbine generator is at the target load;

[0043] Based on the degree of use characterized by the test hardware parameters reaching the target degree of use, determine the test voltage adjustment amount as the rated voltage adjustment amount.

[0044] In a possible implementation, the hardware components include a journal, the hardware parameter is the fatigue life of the journal under stress impact, the test hardware parameter is the test fatigue life, and the determining unit is specifically configured to:

[0045] Based on the test fatigue life being not less than the fatigue life threshold, increase the test voltage adjustment amount, and re - execute the step of controlling the steam turbine generator to provide the test voltage adjustment amount when the steam turbine generator is at the target load;

[0046] Based on the test fatigue life reaching the fatigue life, determine the test voltage adjustment amount as the rated voltage adjustment amount.

[0047] In a possible implementation, the hardware components include a stator and a rotor, the hardware parameter is the stator - rotor temperature rise, the test hardware parameter is the test stator - rotor temperature rise, and the determining unit is specifically configured to:

[0048] Based on the test stator - rotor temperature rise being not greater than the stator - rotor temperature rise threshold, increase the test voltage adjustment amount, and re - execute the step of controlling the steam turbine generator to provide the test voltage adjustment amount when the steam turbine generator is at the target load;

[0049] Based on the test stator - rotor temperature rise reaching the stator - rotor temperature rise threshold, determine the test voltage adjustment amount as the rated voltage adjustment amount.

[0050] In a possible implementation, the constituent hardware includes a stator, the hardware parameter is the stator parameter, the test hardware parameter is the test stator parameter, and the stator parameter includes any one of stator voltage, stator current, and excitation current. The determining unit is specifically configured to:

[0051] Based on the test stator parameter not being greater than the stator parameter threshold, increase the test voltage adjustment amount, and re - execute the step of controlling the steam turbine generator to provide the test voltage adjustment amount when the steam turbine generator is at the target load;

[0052] Based on the test stator parameter reaching the stator parameter threshold, determine the test voltage adjustment amount as the rated voltage adjustment amount.

[0053] In a possible implementation, the constituent hardware includes a plurality of constituent hardwares, and the determining unit is specifically configured to:

[0054] Based on the usage degree characterized by the test hardware parameter corresponding to the target constituent hardware reaching the target usage degree, determine the test voltage adjustment amount corresponding to the target constituent hardware as the maximum voltage adjustment amount corresponding to the target constituent hardware, where the target constituent hardware is any one of the plurality of constituent hardwares;

[0055] Based on the maximum voltage adjustment amount corresponding to the target constituent hardware being the minimum value among the maximum voltage adjustment amounts corresponding to the plurality of constituent hardwares respectively, determine the maximum voltage adjustment amount corresponding to the target constituent hardware as the rated voltage adjustment amount.

[0056] In a third aspect, an embodiment of the present application discloses a computer device, which includes a processor and a memory:

[0057] The memory is used to store a computer program and transmit the computer program to the processor;

[0058] The processor is used to execute the steam turbine generator control method according to any one of the items in the first aspect according to the instructions in the computer program;

[0059] In a fourth aspect, an embodiment of the present application discloses a computer - readable storage medium, which is used to store a computer program, and the computer program is used to execute the steam turbine generator control method according to any one of the items in the first aspect;

[0060] In a fifth aspect, an embodiment of the present application discloses a computer program product including a computer program, which, when running on a computer device, enables the computer device to execute the steam turbine generator control method according to any one of the items in the first aspect.

[0061] As can be seen from the above technical solutions, the present application can first determine the rated voltage regulation amount corresponding to the steam turbine generator at the target load. When the steam turbine generator realizes the rated voltage regulation amount at the target load, the hardware parameters corresponding to the hardware components that make up the steam turbine generator are critical hardware parameters. The hardware parameters are used to characterize the degree of use of the corresponding hardware components. When the degree of use exceeds the target degree of use characterized by the critical hardware parameters, the probability of damage to the corresponding hardware components is greater than the preset probability threshold. And when the voltage regulation amount is greater than the rated voltage regulation amount, it is very likely that the hardware will be damaged due to excessive use. Based on this, after obtaining the voltage regulation request corresponding to the steam turbine generator, the target voltage regulation amount of the request can be analyzed to determine whether it exceeds the rated voltage regulation amount. Based on the fact that the steam turbine generator is at the target load and the target voltage regulation amount is greater than the rated voltage regulation amount, the steam turbine generator can be controlled to provide the rated voltage regulation amount instead of the target voltage regulation amount, thereby reducing the probability of hardware loss of the steam turbine generator and maintaining the hardware safety of the steam turbine generator. Description of the Drawings

[0062] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0063] Figure 1 It is a flowchart of a steam turbine generator control method provided by an embodiment of the present application;

[0064] Figure 2 It is a flowchart of a steam turbine generator control method in an actual application scenario provided by an embodiment of the present application;

[0065] Figure 3 It is a schematic diagram of a steam turbine generator control method in an actual application scenario provided by an embodiment of the present application;

[0066] Figure 4 It is a structural block diagram of a steam turbine generator control device provided by an embodiment of the present application;

[0067] Figure 5 It is a structural diagram of a terminal provided by an embodiment of the present application;

[0068] Figure 6 It is a structural diagram of a server provided by an embodiment of the present application. Detailed Embodiments

[0069] The embodiments of the present application will be described below in conjunction with the accompanying drawings.

[0070] It can be understood that this method can be applied to a computer device, which is a computer device capable of controlling a turbogenerator, such as a terminal device or a server. This method can be independently executed by a terminal device or a server, or can be applied to a network scenario where a terminal device and a server communicate, and is executed in cooperation with the terminal device and the server. Among them, the terminal device can be a device such as a mobile phone, a tablet computer, a notebook computer, or a desktop computer. The terminal device can also include a variety of virtual reality devices, for example, it can include augmented reality (AR) devices, such as AR glasses, AR screens, etc., and can also include virtual reality (VR) devices, such as head-mounted VR glasses, etc. The server can be understood as an application server or a web server. In actual deployment, the server can be an independent server, a cluster server, or a cloud server, etc.

[0071] See Figure 1 , Figure 1 is a flowchart of a method for controlling a turbogenerator provided by an embodiment of the present application. The method includes:

[0072] S101: Determine the rated voltage regulation amount corresponding to the turbogenerator at the target load.

[0073] When the turbogenerator is at the target load and realizes the rated voltage regulation amount, the hardware parameters corresponding to the constituent hardware that makes up the turbogenerator are critical hardware parameters. The hardware parameters are used to characterize the degree of use of the constituent hardware. When the degree of use exceeds the target degree of use characterized by the critical hardware parameters, the damage probability of the constituent hardware is greater than a preset probability threshold. That is, the rated voltage regulation amount is the maximum voltage regulation amount that does not cause obvious damage to the hardware.

[0074] S102: Obtain a voltage regulation request corresponding to the turbogenerator.

[0075] During the operation of the power grid, the turbogenerator needs to participate in phase modulation, and phase modulation is to maintain the voltage stability in the power grid. Therefore, when the voltage in the power grid suddenly drops, the turbogenerator needs to provide a greater voltage. The voltage regulation request is used to request the turbogenerator to provide a target voltage regulation amount.

[0076] S103: Based on the fact that the turbogenerator is at the target load and the target voltage regulation amount is greater than the rated voltage regulation amount, control the turbogenerator to provide the rated voltage regulation amount.

[0077] To avoid causing hardware damage, the computer device can first determine whether the target voltage regulation amount is greater than the rated voltage regulation amount. If the target voltage regulation amount is greater than the rated voltage regulation amount, it means that controlling the steam turbine generator to provide the target voltage regulation amount will cause hardware damage to the steam turbine generator. At this time, the computer device can control the steam turbine generator to provide the rated voltage regulation amount, so as to provide the maximum voltage regulation amount without causing hardware damage.

[0078] As can be seen from the above technical solution, the present application can first determine the rated voltage regulation amount corresponding to the steam turbine generator under the target load. When the steam turbine generator realizes the rated voltage regulation amount under the target load, the hardware parameters corresponding to the hardware components constituting the steam turbine generator are critical hardware parameters. The hardware parameters are used to characterize the degree of use of the corresponding hardware components. When the degree of use exceeds the target degree of use characterized by the critical hardware parameters, the probability of damage to the corresponding hardware components is greater than the preset probability threshold. That is, when the voltage regulation amount is greater than the rated voltage regulation amount, it is very likely that the hardware will be damaged due to excessive hardware usage. Based on this, after obtaining the voltage regulation request corresponding to the steam turbine generator, the target voltage regulation amount of the request can be analyzed to determine whether it exceeds the rated voltage regulation amount. Based on the fact that the steam turbine generator is under the target load and the target voltage regulation amount is greater than the rated voltage regulation amount, the steam turbine generator can be controlled to provide the rated voltage regulation amount instead of the target voltage regulation amount, thereby reducing the probability of hardware loss of the steam turbine generator and maintaining the hardware safety of the steam turbine generator.

[0079] Similarly, in a possible implementation manner, based on the fact that the steam turbine generator is under the target load and the target voltage regulation amount is not greater than the rated voltage regulation amount, it indicates that the probability of causing hardware damage by controlling the steam turbine generator to provide the target voltage regulation amount at this time is relatively low. Therefore, the computer device can control the steam turbine generator to provide the target voltage regulation amount to meet the grid voltage regulation requirements.

[0080] Next, the determination process of the rated voltage regulation amount will be introduced in detail.

[0081] In a possible implementation manner, when determining the rated voltage regulation amount corresponding to the steam turbine generator under the target load, the computer device can control the steam turbine generator to provide a test voltage regulation amount when the steam turbine generator is under the target load. The test voltage regulation amount is less than the initial voltage regulation amount threshold, and the initial voltage regulation threshold is a voltage regulation threshold that will not cause hardware damage. Since the voltage regulation amount less than the initial voltage regulation threshold is relatively small, it will not cause hardware damage.

[0082] Then, the computer device can determine the test hardware parameters corresponding to the steam turbine generator and determine whether the degree of use characterized by the test hardware parameters reaches the target degree of use. Based on the fact that the degree of use characterized by the test hardware parameters does not reach the target degree of use, increase the test voltage adjustment amount, and re-execute the step of controlling the steam turbine generator to provide the test voltage adjustment amount when the steam turbine generator is at the target load, and gradually increase the test voltage adjustment amount to gradually approach the target degree of use of the hardware.

[0083] Based on the fact that the degree of use characterized by the test hardware parameters reaches the target degree of use, it indicates that the test voltage adjustment amount at this time is already the maximum voltage adjustment amount that the constituent hardware can support. At this time, the computer device can determine the test voltage adjustment amount as the rated voltage adjustment amount. In this way, it can ensure less damage to the constituent hardware during the test. Of course, the computer device can also adjust the test voltage adjustment amount from large to small, which is not limited here.

[0084] Among them, the steam turbine generator can include a variety of constituent hardware. The constituent hardware is used to form the steam turbine generator, and the hardware parameters corresponding to different constituent hardware may be different. Next, a detailed introduction will be made for various hardware.

[0085] In a possible implementation manner, the constituent hardware includes a journal, the hardware parameter is the fatigue life of the journal under stress impact, the test hardware parameter is the test fatigue life, and the step of increasing the test voltage adjustment amount and re-executing the step of controlling the steam turbine generator to provide the test voltage adjustment amount when the steam turbine generator is at the target load based on the fact that the degree of use characterized by the test hardware parameters does not reach the target degree of use includes:

[0086] Based on the fact that the test fatigue life is not less than the fatigue life threshold, increase the test voltage adjustment amount and re-execute the step of controlling the steam turbine generator to provide the test voltage adjustment amount when the steam turbine generator is at the target load;

[0087] The step of determining the test voltage adjustment amount as the rated voltage adjustment amount based on the fact that the degree of use characterized by the test hardware parameters reaches the target degree of use includes:

[0088] Based on the fact that the test fatigue life reaches the fatigue life, determine the test voltage adjustment amount as the rated voltage adjustment amount.

[0089] In a possible implementation, the hardware components include a stator and a rotor. The hardware parameter is the temperature rise of the stator and rotor. The tested hardware parameter is the tested temperature rise of the stator and rotor. When the degree of usage characterized by the tested hardware parameter does not reach the target degree of usage, increase the tested voltage adjustment amount and re - execute the step of controlling the turbogenerator to provide the tested voltage adjustment amount when the turbogenerator is at the target load, including:

[0090] Based on the tested temperature rise of the stator and rotor not being greater than the temperature rise threshold of the stator and rotor, increase the tested voltage adjustment amount and re - execute the step of controlling the turbogenerator to provide the tested voltage adjustment amount when the turbogenerator is at the target load;

[0091] When the degree of usage characterized by the tested hardware parameter reaches the target degree of usage, determining the tested voltage adjustment amount as the rated voltage adjustment amount, including:

[0092] Based on the tested temperature rise of the stator and rotor reaching the temperature rise threshold of the stator and rotor, determining the tested voltage adjustment amount as the rated voltage adjustment amount.

[0093] In a possible implementation, the hardware components include a stator. The hardware parameter is the stator parameter. The tested hardware parameter is the tested stator parameter. The stator parameter includes any one of stator voltage, stator current, and excitation current. When the degree of usage characterized by the tested hardware parameter does not reach the target degree of usage, increase the tested voltage adjustment amount and re - execute the step of controlling the turbogenerator to provide the tested voltage adjustment amount when the turbogenerator is at the target load, including:

[0094] Based on the tested stator parameter not being greater than the stator parameter threshold, increase the tested voltage adjustment amount and re - execute the step of controlling the turbogenerator to provide the tested voltage adjustment amount when the turbogenerator is at the target load;

[0095] When the degree of usage characterized by the tested hardware parameter reaches the target degree of usage, determining the tested voltage adjustment amount as the rated voltage adjustment amount, including:

[0096] Based on the tested stator parameter reaching the stator parameter threshold, determining the tested voltage adjustment amount as the rated voltage adjustment amount.

[0097] It can be understood that the maximum voltage regulation amount that different constituent hardware can support may be different. For example, the maximum voltage regulation amount corresponding to constituent hardware A may be greater than the maximum voltage regulation amount corresponding to constituent hardware B. At this time, if the maximum voltage regulation amount corresponding to constituent hardware A is set as the rated voltage regulation amount, it may cause damage to constituent hardware B when controlling the steam turbine generator to provide the rated voltage regulation amount. Based on this, in a possible implementation, the computer device can determine the rated voltage regulation amount based on the minimum maximum voltage regulation amount corresponding to the multiple constituent hardware.

[0098] In this implementation, the constituent hardware includes multiple constituent hardware. When the usage degree characterized by the test hardware parameters reaches the target usage degree and the test voltage regulation amount is determined as the rated voltage regulation amount, the computer device can, based on the usage degree characterized by the test hardware parameters of the target constituent hardware reaching the target usage degree, determine the test voltage regulation amount corresponding to the target constituent hardware as the maximum voltage regulation amount corresponding to the target constituent hardware, where the target constituent hardware is any one of the multiple constituent hardware;

[0099] Based on the maximum voltage regulation amount corresponding to the target constituent hardware being the minimum among the maximum voltage regulation amounts corresponding to the multiple constituent hardware respectively, determine the maximum voltage regulation amount corresponding to the target constituent hardware as the rated voltage regulation amount, so as to ensure that no damage is caused to any constituent hardware when controlling the steam turbine generator to provide this rated voltage regulation amount.

[0100] To facilitate understanding of the technical solution provided by this application, next, a steam turbine generator control method provided by this application will be introduced in combination with an actual application scenario.

[0101] See Figure 2 , Figure 2 is a flowchart of a steam turbine generator control method in an actual application scenario provided by an embodiment of this application. In this actual application scenario, the steam turbine generator adjusts the voltage by providing reactive power, and the rated voltage regulation amount is the maximum reactive power that is allowed to be output.

[0102] The computer device can first analyze the key technologies related to the dynamic phase modulation of the steam turbine generator. The dynamic phase modulation operation of the steam turbine generator in the power generation state is very different from that in the motor state. When the steam turbine generator outputs active power while meeting the reactive power regulation requirements of the system, sudden changes in the operating state pose risks of overcurrent to the stator and rotor of the steam turbine generator and have adverse effects on the ventilation cooling and fatigue strength of the steam turbine generator.

[0103] For a steam turbine generator operating in parallel with the power grid, adjusting the excitation of the generator while outputting active power to the grid can regulate its reactive power. Ignoring the effects of armature winding and magnetic circuit saturation, according to the power balance relationship, it can be obtained that before and after adjusting the excitation, the electromagnetic power and the output active power of the steam turbine generator should remain unchanged, that is

[0104]

[0105] where: P e is the electromagnetic power; P2 is the output active power; m is the number of phases; U is the terminal voltage, which is the power grid voltage after being connected to the grid; I is the stator current; E0 is the excitation electromotive force; X s is the synchronous reactance; δ is the power angle. Since the power grid voltage U and the generator synchronous reactance X s are fixed values after being connected to the grid. Therefore, equation (1) can be further written as:

[0106]

[0107] As Figure 3 shown, Figure 3 represents the vector diagram of the steam turbine generator when E0sinδ = constant and Icosδ = constant during excitation adjustment. When the excitation electromotive force is the armature current is the power factor at this time, the excitation current I f is called "normal excitation". During normal excitation, E0sinδ = U, and all the output power of the generator is active power. It can be seen from Figure 3 that if the excitation I f ′>I f , the generator will operate in the "over-excited" state. At this time, there are risks of over-current and over-voltage in both the stator and rotor. If the excitation I f ′<I f , the generator will operate in the "under-excited" state. At this time, there is a risk of over-current in the stator.

[0108] The computer device can first establish a calculation model for the dynamic phase modulation operation of the steam turbine generator, and the process is as follows:

[0109] Establish the voltage equation of the synchronous motor in the dq0 coordinate system for the steam turbine generator as:

[0110] U dq0 = Cψ dq0 + RI dq0 (5)

[0111] where, U dq0 is the column matrix of the terminal voltages of the stator, rotor, and damper windings; I dq0is the current column matrix; R is the resistance matrix of the stator, rotor, and damper windings; C is the coefficient matrix; ψ dq0 is the flux linkage column matrix.

[0112] The rotor motion equation of the turbo-generator is established as:

[0113]

[0114] where, H is the inertia time constant of the unit; θ is the rotor position angle; T m is the input mechanical torque; T e is the electromagnetic torque.

[0115] The electromagnetic torque equation of the turbo-generator is established as:

[0116] T e = x q i q i d - x d i d i q + x ad i fd i q + x ad i kd i q - x aq i kq i d (3)

[0117] Calculate the electromagnetic torque response characteristics and the fatigue life of the journal bearing stress impact when the turbo-generator provides reactive power for voltage regulation during sudden voltage drop under different loads. The process is as follows:

[0118] Calculate the response characteristics of the electromagnetic torque after the turbo-generator enters the forced excitation during sudden voltage drop under different loads.

[0119] Calculate the fatigue life of the journal bearing stress impact after the turbo-generator enters the forced excitation during sudden voltage drop under different loads. If the fatigue life does not meet the standard of GB / T 7064-2008 "Technical Requirements for Salient-Pole Synchronous Generators" (i.e., the fatigue life threshold), then reduce the excitation current and recalculate. Reducing the excitation current means reducing the output of reactive power, thus reducing the voltage regulation amount. Through this method, the maximum reactive power output corresponding to when the fatigue life reaches the fatigue life threshold can be obtained.

[0120] Calculate the stator and rotor temperature rises of the turbo-generator during dynamic phase modulation in the power generation state.

[0121] Calculate the steady-state and transient temperature rises of the stator and rotor coils of the turbogenerator during dynamic phase modulation in the power generation state, and analyze whether they exceed the standard temperature limit. If they exceed the standard of GB / T 7064-2008 "Technical Requirements for Non-salient Pole Synchronous Generators" (i.e., the stator and rotor temperature rise thresholds), then reduce the excitation current and recalculate.

[0122] The response characteristics of the stator voltage, stator current, excitation current, and output reactive power of the turbogenerator under different loads when the voltage suddenly drops and the motor enters the forced excitation are calculated as follows:

[0123] Calculate the response characteristics of the stator voltage and current of the turbogenerator under different loads when the voltage suddenly drops and the motor enters the forced excitation, and analyze whether there is stator overvoltage and overcurrent. If the stator voltage exceeds the standard of GB / T 7064-2008 "Technical Requirements for Non-salient Pole Synchronous Generators" (i.e., the stator voltage threshold in the stator parameter threshold), then reduce the excitation current and recalculate.

[0124] Calculate the response characteristics of the excitation current of the turbogenerator under different loads when the voltage suddenly drops and the motor enters the forced excitation, and analyze whether there is rotor overcurrent. If the rotor current and voltage exceed the standard of GB / T 7064-2008 "Technical Requirements for Non-salient Pole Synchronous Generators" (i.e., the rotor current and voltage thresholds), then reduce the excitation current and recalculate.

[0125] Calculate the response characteristics of the output reactive power of the turbogenerator under different loads when the voltage suddenly drops and the motor enters the forced excitation.

[0126] Finally, output the maximum value of the output reactive power of the turbogenerator under different loads and the rated voltage regulation amount. The maximum value of this reactive power is the minimum value among the multiple maximum values of reactive power calculated by the above method.

[0127] Based on the turbogenerator control method provided in the above embodiments, the present application also provides a turbogenerator control device. Refer to Figure 4 , Figure 4 which is a structural block diagram of a turbogenerator control device provided in an embodiment of the present application. The device 400 includes a determination unit 401, an acquisition unit 402, and a first control unit 403:

[0128] The determination unit 401 is used to determine the rated voltage regulation amount corresponding to the turbogenerator under the target load. When the turbogenerator realizes the rated voltage regulation amount under the target load, the hardware parameters corresponding to the hardware components that make up the turbogenerator are critical hardware parameters. The hardware parameters are used to characterize the degree of use of the corresponding hardware components. When the degree of use exceeds the target degree of use characterized by the critical hardware parameters, the damage probability of the corresponding hardware components is greater than the preset probability threshold.

[0129] The obtaining unit 402 is configured to obtain a voltage regulation request corresponding to the steam turbine generator, where the voltage regulation request is used to request the steam turbine generator to provide a target voltage regulation amount;

[0130] The first control unit 403 is configured to control the steam turbine generator to provide the rated voltage regulation amount based on the steam turbine generator being at the target load and the target voltage regulation amount being greater than the rated voltage regulation amount.

[0131] In a possible implementation manner, the device further includes a second control unit:

[0132] The second control unit is configured to control the steam turbine generator to provide the target voltage regulation amount based on the steam turbine generator being at the target load and the target voltage regulation amount not being greater than the rated voltage regulation amount.

[0133] In a possible implementation manner, the determining unit 401 is specifically configured to:

[0134] When the steam turbine generator is at the target load, control the steam turbine generator to provide a test voltage regulation amount, where the test voltage regulation amount is less than an initial voltage regulation amount threshold;

[0135] Determine the test hardware parameters corresponding to the steam turbine generator;

[0136] Based on the degree of use characterized by the test hardware parameters not reaching the target degree of use, increase the test voltage regulation amount, and re - execute the step of controlling the steam turbine generator to provide the test voltage regulation amount when the steam turbine generator is at the target load;

[0137] Based on the degree of use characterized by the test hardware parameters reaching the target degree of use, determine the test voltage regulation amount as the rated voltage regulation amount.

[0138] In a possible implementation manner, the constituent hardware includes a journal, the hardware parameter is the fatigue life of the journal under stress impact, the test hardware parameter is the test fatigue life, and the determining unit 401 is specifically configured to:

[0139] Based on the test fatigue life being not less than the fatigue life threshold, increase the test voltage regulation amount, and re - execute the step of controlling the steam turbine generator to provide the test voltage regulation amount when the steam turbine generator is at the target load;

[0140] Based on the test fatigue life reaching the fatigue life, determine the test voltage regulation amount as the rated voltage regulation amount.

[0141] In a possible implementation, the constituent hardware includes a stator and a rotor, the hardware parameter is the temperature rise of the stator and rotor, the tested hardware parameter is the tested temperature rise of the stator and rotor, and the determining unit 401 is specifically configured to:

[0142] Based on that the tested temperature rise of the stator and rotor is not greater than the temperature rise threshold of the stator and rotor, increase the tested voltage regulation amount, and re - execute the step of controlling the turbogenerator to provide the tested voltage regulation amount when the turbogenerator is at the target load;

[0143] Based on that the tested temperature rise of the stator and rotor reaches the temperature rise threshold of the stator and rotor, determine the tested voltage regulation amount as the rated voltage regulation amount.

[0144] In a possible implementation, the constituent hardware includes a stator, the hardware parameter is the stator parameter, the tested hardware parameter is the tested stator parameter, and the stator parameter includes any one of stator voltage, stator current, and excitation current. The determining unit 401 is specifically configured to:

[0145] Based on that the tested stator parameter is not greater than the stator parameter threshold, increase the tested voltage regulation amount, and re - execute the step of controlling the turbogenerator to provide the tested voltage regulation amount when the turbogenerator is at the target load;

[0146] Based on that the tested stator parameter reaches the stator parameter threshold, determine the tested voltage regulation amount as the rated voltage regulation amount.

[0147] In a possible implementation, the constituent hardware includes multiple constituent hardwares, and the determining unit 401 is specifically configured to:

[0148] Based on that the usage degree characterized by the tested hardware parameter corresponding to the target constituent hardware reaches the target usage degree, determine the tested voltage regulation amount corresponding to the target constituent hardware as the maximum voltage regulation amount corresponding to the target constituent hardware, where the target constituent hardware is any one of the multiple constituent hardwares;

[0149] Based on that the maximum voltage regulation amount corresponding to the target constituent hardware is the minimum value among the maximum voltage regulation amounts corresponding to the multiple constituent hardwares respectively, determine the maximum voltage regulation amount corresponding to the target constituent hardware as the rated voltage regulation amount.

[0150] The embodiments of the present application further provide a computer device. Please refer to Figure 5 as shown. This computer device can be a terminal device. Taking the terminal device as a mobile phone as an example:

[0151] Figure 5Shown is a block diagram of a partial structure of a mobile phone related to the terminal device provided in an embodiment of the present application. Refer to Figure 5 , the mobile phone includes: a Radio Frequency (RF) circuit 710, a memory 720, an input unit 730, a display unit 740, sensors 750, an audio circuit 760, a Wireless Fidelity (WiFi) module 770, a processor 780, a power supply 790, and other components. Those skilled in the art can understand that Figure 5 the mobile phone structure shown in

[0152] does not limit the mobile phone, and may include more or fewer components than shown in the figure, or combine certain components, or have different component arrangements. Figure 5 The following specifically introduces each component of the mobile phone:

[0153] The RF circuit 710 can be used for receiving and sending signals during information reception or call processes. Specifically, after receiving the downlink information from the base station, it is given to the processor 780 for processing; in addition, the designed uplink data is sent to the base station. Generally, the RF circuit 710 includes but is not limited to antennas, at least one amplifier, a transceiver, a coupler, a Low Noise Amplifier (LNA), a duplexer, etc. In addition, the RF circuit 710 can also communicate with the network and other devices through wireless communication. The above wireless communication can use any communication standard or protocol, including but not limited to Global System of Mobile communication (GSM), General Packet Radio Service (GPRS), Code Division Multiple Access (CDMA), Wideband Code Division Multiple Access (WCDMA), Long Term Evolution (LTE), email, Short Messaging Service (SMS), etc.

[0154] The memory 720 can be used to store software programs and modules. The processor 780 executes various functional applications and data processing of the mobile phone by running the software programs and modules stored in the memory 720. The memory 720 mainly includes a program storage area and a data storage area. Among them, the program storage area can store an operating system, application programs required for at least one function (such as a sound playback function, an image playback function, etc.); the data storage area can store data created according to the use of the mobile phone (such as audio data, phone book, etc.). In addition, the memory 720 may include high-speed random access memory and may also include non-volatile memory, such as at least one magnetic disk storage device, a flash memory device, or other volatile solid-state storage devices.

[0155] The input unit 730 can be used to receive input digital or character information and generate key signal inputs related to the user settings and function controls of the mobile phone. Specifically, the input unit 730 may include a touch panel 731 and other input devices 732. The touch panel 731, also known as a touch screen, can collect touch operations of the user on or near it (such as operations of the user using a finger, a stylus, or any suitable object or accessory on or near the touch panel 731), and drive corresponding connection devices according to a preset program. Optionally, the touch panel 731 may include two parts: a touch detection device and a touch controller. Among them, the touch detection device detects the touch position of the user and detects the signal brought by the touch operation, and transmits the signal to the touch controller; the touch controller receives the touch information from the touch detection device, converts it into contact coordinates, and then sends it to the processor 780, and can receive and execute commands sent by the processor 780. In addition, various types such as resistive, capacitive, infrared, and surface acoustic wave can be used to implement the touch panel 731. In addition to the touch panel 731, the input unit 730 may also include other input devices 732. Specifically, the other input devices 732 may include, but are not limited to, one or more of a physical keyboard, function keys (such as volume control keys, power on / off keys, etc.), a trackball, a mouse, a joystick, etc.

[0156] The display unit 740 can be used to display information input by the user or information provided to the user, as well as various menus of the mobile phone. The display unit 740 may include a display panel 741. Optionally, the display panel 741 can be configured in the form of a liquid crystal display (LCD), an organic light-emitting diode (OLED), etc. Further, the touch panel 731 can cover the display panel 741. When the touch panel 731 detects a touch operation on or near it, it is transmitted to the processor 780 to determine the type of touch event. Subsequently, the processor 780 provides a corresponding visual output on the display panel 741 according to the type of touch event. Although in Figure 5 the touch panel 731 and the display panel 741 are implemented as two independent components to realize the input and input functions of the mobile phone, in some embodiments, the touch panel 731 and the display panel 741 can be integrated to realize the input and output functions of the mobile phone.

[0157] The mobile phone may further include at least one sensor 750, such as a light sensor, a motion sensor, and other sensors. Specifically, the light sensor may include an ambient light sensor and a proximity sensor. Among them, the ambient light sensor can adjust the brightness of the display panel 741 according to the brightness of the ambient light, and the proximity sensor can turn off the display panel 741 and / or the backlight when the mobile phone is moved to the ear. As a kind of motion sensor, the accelerometer sensor can detect the magnitude of acceleration in all directions (generally three axes). When stationary, it can detect the magnitude and direction of gravity, and can be used for applications that identify the posture of the mobile phone (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), vibration recognition related functions (such as pedometer, tapping), etc.; as for other sensors such as gyroscopes, barometers, hygrometers, thermometers, and infrared sensors that the mobile phone can also be configured with, they will not be elaborated here.

[0158] The audio circuit 760, the speaker 761, and the microphone 762 can provide an audio interface between the user and the mobile phone. The audio circuit 760 can transmit the electrical signal converted from the received audio data to the speaker 761, and the speaker 761 converts it into a sound signal for output; on the other hand, the microphone 762 converts the collected sound signal into an electrical signal, which is received by the audio circuit 760 and then converted into audio data. After the audio data is output to the processor 780 for processing, it is sent to another mobile phone through the RF circuit 710, for example, or the audio data is output to the memory 720 for further processing.

[0159] WiFi belongs to short-distance wireless transmission technology. The mobile phone can help users send and receive emails, browse the web, and access streaming media through the WiFi module 770. It provides users with wireless broadband Internet access. Although Figure 5The WiFi module 770 is shown, but it can be understood that it does not belong to the essential components of the mobile phone and can be completely omitted within the scope of not changing the essence of the invention as needed.

[0160] The processor 780 is the control center of the mobile phone, connecting various parts of the entire mobile phone through various interfaces and circuits. By running or executing software programs and / or modules stored in the memory 720, and by calling data stored in the memory 720, it executes various functions of the mobile phone and processes data, thereby performing an overall detection of the mobile phone. Optionally, the processor 780 may include one or more processing units; preferably, the processor 780 may integrate an application processor and a modem processor. Among them, the application processor mainly processes the operating system, user interface, and application programs, etc., and the modem processor mainly processes wireless communication. It can be understood that the above-mentioned modem processor may not be integrated into the processor 780 either.

[0161] The mobile phone also includes a power supply 790 (such as a battery) for supplying power to each component. Preferably, the power supply can be logically connected to the processor 780 through a power management system, so as to realize functions such as management of charging, discharging, and power consumption management through the power management system.

[0162] Although not shown, the mobile phone may also include a camera, a Bluetooth module, etc., which will not be elaborated here.

[0163] In this embodiment, the processor 780 included in the terminal device further has the following functions:

[0164] Determine the rated voltage regulation amount corresponding to the steam turbine generator under the target load. When the steam turbine generator is under the target load and realizes the rated voltage regulation amount, the hardware parameters corresponding to the constituent hardware that makes up the steam turbine generator are critical hardware parameters. The hardware parameters are used to characterize the degree of use of the constituent hardware. When the degree of use exceeds the target degree of use characterized by the critical hardware parameters, the damage probability of the constituent hardware is greater than a preset probability threshold;

[0165] Obtain a voltage regulation request corresponding to the steam turbine generator, where the voltage regulation request is used to request the steam turbine generator to provide a target voltage regulation amount;

[0166] Based on the fact that the steam turbine generator is under the target load and the target voltage regulation amount is greater than the rated voltage regulation amount, control the steam turbine generator to provide the rated voltage regulation amount.

[0167] The embodiment of the present application also provides a server, please refer to Figure 6 as shown Figure 6The structure diagram of server 800 provided by the embodiments of the present application. Server 800 may vary greatly due to configuration or performance differences, and may include one or more central processing units (CPUs) 822 (for example, one or more processors) and a memory 832, and one or more storage media 830 (for example, one or more mass storage devices) for storing application programs 842 or data 844. Among them, the memory 832 and the storage media 830 may be transient storage or persistent storage. The program stored in the storage media 830 may include one or more modules (not shown in the figure), and each module may include a series of instruction operations on the server. Further, the central processing unit 822 may be configured to communicate with the storage media 830 and execute a series of instruction operations in the storage media 830 on the server 800.

[0168] Server 800 may also include one or more power supplies 826, one or more wired or wireless network interfaces 850, one or more input / output interfaces 858, and / or one or more operating systems 841, such as Windows Server TM , Mac OS X TM , Unix TM , Linux TM , FreeBSD TM and so on.

[0169] The steps performed by the server in the above embodiments may be based on Figure 6 the server structure shown.

[0170] The embodiments of the present application also provide a computer-readable storage medium for storing a computer program, and the computer program is used to execute any one of the implementation manners of the steam turbine generator control method described in the foregoing embodiments.

[0171] The embodiments of the present application also provide a computer program product including a computer program. When it runs on a computer device, it causes the computer device to execute the steam turbine generator control method described in any one of the above embodiments.

[0172] Those of ordinary skill in the art can understand that all or part of the steps of implementing the above method embodiments can be completed by hardware related to program instructions. The foregoing program can be stored in a computer-readable storage medium. When the program is executed, it executes the steps including the above method embodiments; and the foregoing storage medium can be at least one of the following media: read-only memory (abbreviation: ROM), RAM, magnetic disk, or optical disc, etc., which can store program codes.

[0173] It should be noted that the various embodiments in this specification are described in a progressive manner. For the same or similar parts among the embodiments, reference can be made to each other, and the key point of each embodiment is to illustrate the differences from other embodiments. In particular, for the device and system embodiments, since they are basically similar to the method embodiments, the description is relatively simple. For the relevant parts, reference can be made to the corresponding parts of the method embodiments. The device and system embodiments described above are merely illustrative. The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed to multiple network units. Some or all of the modules can be selected according to actual needs to achieve the purpose of the solution of this embodiment. A person of ordinary skill in the art can understand and implement it without creative efforts.

[0174] As described above, this is only a specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present application should be covered by the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A method for controlling a steam turbine generator, characterized in that: The method comprises: Determine a rated voltage adjustment amount corresponding to the steam turbine generator under a target load, wherein when the steam turbine generator achieves the rated voltage adjustment amount under the target load, a hardware parameter corresponding to hardware constituting the steam turbine generator is a critical hardware parameter, and the hardware parameter is used to characterize the degree of use of the hardware. When the degree of use exceeds the target degree of use characterized by the critical hardware parameter, the probability of damage of the hardware is greater than a preset probability threshold; Obtaining a voltage regulation request corresponding to the steam turbine generator, wherein the voltage regulation request is used to request the steam turbine generator to provide a target voltage regulation amount; Based on the fact that the steam turbine generator is at the target load and the target voltage adjustment amount is greater than the rated voltage adjustment amount, the steam turbine generator is controlled to provide the rated voltage adjustment amount.

2. The method according to claim 1, characterized in that The method further comprises: Based on the fact that the steam turbine generator is at the target load and the target voltage adjustment amount is not greater than the rated voltage adjustment amount, the steam turbine generator is controlled to provide the target voltage adjustment amount.

3. The method according to claim 1, characterized in that The step of determining the rated voltage adjustment amount corresponding to the steam turbine generator under the target load includes: When the steam turbine generator is at the target load, controlling the steam turbine generator to provide a test voltage regulation amount, wherein the test voltage regulation amount is less than an initial voltage regulation amount threshold; Determining test hardware parameters corresponding to the steam turbine generator; Based on the fact that the usage level represented by the test hardware parameter does not reach the target usage level, increasing the test voltage adjustment amount, and re-performing the step of controlling the steam turbine generator to provide the test voltage adjustment amount when the steam turbine generator is at the target load; Based on the usage level characterized by the test hardware parameters reaching the target usage level, the test voltage adjustment amount is determined to be the rated voltage adjustment amount.

4. The method according to claim 3, characterized in that The hardware components include a journal, the hardware parameter is a fatigue life of the journal subjected to stress impact, the test hardware parameter is a test fatigue life, the use degree characterized by the test hardware parameter does not reach the target use degree, the test voltage adjustment amount is increased, and the step of controlling the steam turbine generator to provide the test voltage adjustment amount when the steam turbine generator is at the target load is re-executed, comprising: Based on the test fatigue life being not less than the fatigue life threshold, increasing the test voltage adjustment amount, and re-performing the step of controlling the steam turbine generator to provide the test voltage adjustment amount when the steam turbine generator is at the target load; The step of determining the test voltage adjustment amount as the rated voltage adjustment amount based on the usage degree characterized by the test hardware parameters reaching the target usage degree comprises: Based on the test fatigue life reaching the fatigue life, the test voltage adjustment amount is determined as the rated voltage adjustment amount.

5. The method according to claim 3, characterized in that: The hardware comprises a stator and a rotor, the hardware parameter is a stator-rotor temperature rise, the test hardware parameter is a test stator-rotor temperature rise, the use degree characterized by the test hardware parameter does not reach the target use degree, the test voltage adjustment amount is increased, and the step of controlling the steam turbine generator to provide the test voltage adjustment amount when the steam turbine generator is at the target load is re-executed, comprises: Based on the test stator-rotor temperature rise being no greater than the stator-rotor temperature rise threshold, the test voltage adjustment amount is increased, and the step of controlling the steam turbine generator to provide the test voltage adjustment amount when the steam turbine generator is at the target load is re-executed; The step of determining the test voltage adjustment amount as the rated voltage adjustment amount based on the usage degree characterized by the test hardware parameters reaching the target usage degree comprises: Based on the test stator-rotor temperature rise reaching the stator-rotor temperature rise threshold, the test voltage adjustment amount is determined as the rated voltage adjustment amount.

6. The method according to claim 3, characterized in that The hardware components include a stator, the hardware parameters are stator parameters, the test hardware parameters are test stator parameters, the stator parameters include any one of stator voltage, stator current, and excitation current, the use degree characterized by the test hardware parameters does not reach the target use degree, the test voltage adjustment amount is increased, and the step of controlling the steam turbine generator to provide the test voltage adjustment amount when the steam turbine generator is at the target load is re-executed, including: Based on the test stator parameter being not greater than the stator parameter threshold, increasing the test voltage adjustment amount, and re-performing the step of controlling the steam turbine generator to provide the test voltage adjustment amount when the steam turbine generator is at the target load; The step of determining the test voltage adjustment amount as the rated voltage adjustment amount based on the usage degree characterized by the test hardware parameters reaching the target usage degree comprises: Based on the test stator parameter reaching the stator parameter threshold, the test voltage adjustment amount is determined as the rated voltage adjustment amount.

7. The method according to claim 3, characterized in that The component hardware includes a plurality of component hardwares, and the usage degree characterized by the test hardware parameters reaches the target usage degree, and the test voltage adjustment amount is determined as the rated voltage adjustment amount, including: Based on the usage degree represented by the test hardware parameter corresponding to the target hardware component reaching the target usage degree, determining the test voltage adjustment amount corresponding to the target hardware component as the maximum voltage adjustment amount corresponding to the target hardware component, the target hardware component being any one of the multiple hardware components; Based on the fact that the maximum voltage adjustment amount corresponding to the target hardware component is the minimum value among the maximum voltage adjustment amounts respectively corresponding to the plurality of hardware components, the maximum voltage adjustment amount corresponding to the target hardware component is determined as the rated voltage adjustment amount.

8. A steam turbine generator control device, characterized in that: The device comprises a determining unit, an acquiring unit and a first control unit: The determination unit is used to determine a rated voltage adjustment amount corresponding to the steam turbine generator under a target load. When the steam turbine generator achieves the rated voltage adjustment amount under the target load, a hardware parameter corresponding to the hardware constituting the steam turbine generator is a critical hardware parameter. The hardware parameter is used to characterize the degree of use of the hardware. When the degree of use exceeds the target degree of use represented by the critical hardware parameter, the probability of damage of the hardware is greater than a preset probability threshold. The acquisition unit is used to acquire a voltage regulation request corresponding to the steam turbine generator, wherein the voltage regulation request is used to request the steam turbine generator to provide a target voltage regulation amount; The first control unit is used to control the steam turbine generator to provide the rated voltage adjustment amount based on the fact that the steam turbine generator is at the target load and the target voltage adjustment amount is greater than the rated voltage adjustment amount.

9. The device according to claim 8, characterized in that The device also includes a second control unit: The second control unit is used to control the steam turbine generator to provide the target voltage adjustment amount based on the fact that the steam turbine generator is at the target load and the target voltage adjustment amount is not greater than the rated voltage adjustment amount.

10. The device according to claim 8, characterized in that The determining unit is specifically used for: When the steam turbine generator is at the target load, controlling the steam turbine generator to provide a test voltage regulation amount, wherein the test voltage regulation amount is less than an initial voltage regulation amount threshold; Determining test hardware parameters corresponding to the steam turbine generator; Based on the fact that the usage level represented by the test hardware parameter does not reach the target usage level, increasing the test voltage adjustment amount, and re-performing the step of controlling the steam turbine generator to provide the test voltage adjustment amount when the steam turbine generator is at the target load; Based on the usage level characterized by the test hardware parameters reaching the target usage level, the test voltage adjustment amount is determined to be the rated voltage adjustment amount.

11. The device according to claim 10, characterized in that The hardware components include a journal, the hardware parameter is the fatigue life of the journal under stress impact, the test hardware parameter is the test fatigue life, and the determination unit is specifically used for: Based on the test fatigue life being not less than the fatigue life threshold, increasing the test voltage adjustment amount, and re-performing the step of controlling the steam turbine generator to provide the test voltage adjustment amount when the steam turbine generator is at the target load; Based on the test fatigue life reaching the fatigue life, the test voltage adjustment amount is determined as the rated voltage adjustment amount.

12. The device according to claim 10, characterized in that The hardware components include a stator and a rotor, the hardware parameters are stator-rotor temperature rise, the test hardware parameters are test stator-rotor temperature rise, and the determination unit is specifically used for: Based on the test stator-rotor temperature rise being no greater than the stator-rotor temperature rise threshold, the test voltage adjustment amount is increased, and the step of controlling the steam turbine generator to provide the test voltage adjustment amount when the steam turbine generator is at the target load is re-executed; Based on the test stator-rotor temperature rise reaching the stator-rotor temperature rise threshold, the test voltage adjustment amount is determined as the rated voltage adjustment amount.

13. The device according to claim 10, characterized in that The hardware components include a stator, the hardware parameters are stator parameters, the test hardware parameters are test stator parameters, the stator parameters include any one of a stator voltage, a stator current, and an excitation current, and the determination unit is specifically used for: Based on the test stator parameter being not greater than the stator parameter threshold, increasing the test voltage adjustment amount, and re-performing the step of controlling the steam turbine generator to provide the test voltage adjustment amount when the steam turbine generator is at the target load; Based on the test stator parameter reaching the stator parameter threshold, the test voltage adjustment amount is determined as the rated voltage adjustment amount.

14. The device according to claim 10, characterized in that The hardware components include a plurality of hardware components, and the determining unit is specifically used for: Based on the usage degree represented by the test hardware parameter corresponding to the target hardware component reaching the target usage degree, determining the test voltage adjustment amount corresponding to the target hardware component as the maximum voltage adjustment amount corresponding to the target hardware component, the target hardware component being any one of the multiple hardware components; Based on the fact that the maximum voltage adjustment amount corresponding to the target hardware component is the minimum value among the maximum voltage adjustment amounts respectively corresponding to the plurality of hardware components, the maximum voltage adjustment amount corresponding to the target hardware component is determined as the rated voltage adjustment amount.

15. A computer device, characterized in that: The computer device comprises a processor and a memory: The memory is used to store a computer program and transmit the computer program to the processor; The processor is used to execute the steam turbine generator control method according to any one of claims 1-7 according to the instructions in the computer program.

16. A computer-readable storage medium, characterized in that: The computer-readable storage medium is used to store a computer program, and the computer program is used to execute the steam turbine generator control method according to any one of claims 1 to 7.

17. A computer program product comprising a computer program, which, when executed on a computer device, enables the computer device to execute the steam turbine generator control method according to any one of claims 1 to 7.

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