Gas turbine operation control method, device, equipment, storage medium and product

Abstract

The invention relates to the technical field of gas turbines, in particular to a gas turbine operation control method, device and equipment, a storage medium and a product. A gas turbine is pre-detected, so that the ignition risk of the gas turbine is reduced, and the combustion performance of the gas turbine entering a power generation loading stage is improved; the current rotating speed and the current current information of the synchronous motor are obtained, real-time control over the synchronous motor of the gas turbine is achieved through the double-closed-loop control model of the gas turbine, the power generation efficiency of the gas turbine in the operation process is improved, and the situation that in the prior art, the combustion performance of the gas turbine in the operation process fluctuates is avoided; and the power generation performance is influenced.

Description

Technical Field

[0001] The present invention relates to the technical field of gas turbines, and in particular to a gas turbine operation control method, device, equipment, storage medium and product. Background Art

[0002] The power generation system based on micro gas turbine is a distributed power source with broad application and development prospects. The operation process of the gas turbine is divided into the startup process and the power generation loading process. During the power generation loading process, the combustion performance of the gas turbine may be reduced due to external environment, fuel composition changes or structural blockage. More seriously, it may cause the gas turbine to malfunction, causing the gas turbine to emit a large amount of pollutant gas, which does not meet local environmental protection requirements. In addition, the combustion performance in the combustion chamber of the gas turbine fluctuates and cannot meet the user's power generation needs.

[0003] The above contents are only used to assist in understanding the technical solution of the present invention and do not constitute an admission that the above contents are prior art. Summary of the invention

[0004] The main purpose of the present invention is to provide a gas turbine operation control method, device, equipment, storage medium and product, aiming to solve the technical problem in the prior art that the combustion performance of the gas turbine fluctuates during operation, affecting the power generation performance.

[0005] To achieve the above object, the present invention provides a gas turbine operation control method, the method comprising the following steps:

[0006] Performing a startup pre-check on the gas turbine;

[0007] Adjusting the operating state of the gas turbine until the gas turbine passes the pre-inspection;

[0008] When the gas turbine is successfully started, obtaining current speed and current information of the synchronous motor in the gas turbine;

[0009] The operating state of the gas turbine is controlled through a double closed-loop control model of the gas turbine based on the current rotational speed and the current current information.

[0010] Optionally, controlling the operating state of the gas turbine through a double closed-loop control model of the gas turbine based on the current speed and the current current information includes:

[0011] Obtain the theoretical speed corresponding to the current moment based on the reference speed curve;

[0012] Determining a speed difference between the current speed and a theoretical speed;

[0013] Extracting a current direct-axis current and a current quadrature-axis current of the current information;

[0014] The operating state of the gas turbine is controlled through a double closed-loop control model of the gas turbine according to the rotational speed difference, the current direct-axis current and the current quadrature-axis current.

[0015] Optionally, controlling the operating state of the gas turbine through a double closed-loop control model of the gas turbine according to the speed difference, the current direct-axis current, and the current quadrature-axis current includes:

[0016] Outputting a reference quadrature-axis current through a speed loop PI controller according to the speed difference;

[0017] Obtaining a direct-axis voltage reference value of the synchronous motor through a direct-axis current loop PI controller according to the current direct-axis current and the preset direct-axis current;

[0018] Obtaining a quadrature-axis voltage reference value of the synchronous motor through a quadrature-axis current loop PI controller according to the current quadrature-axis current and the reference quadrature-axis current;

[0019] Modulating the direct-axis voltage reference value and the quadrature-axis voltage reference value to obtain a pulse signal;

[0020] The pulse signal is input to the synchronous motor in the gas turbine to change the torque and speed of the synchronous motor.

[0021] Optionally, the gas turbine operation control method further comprises:

[0022] Generate theoretical electromagnetic torque based on torque calculation model;

[0023] Acquiring the current electromagnetic torque of the synchronous motor;

[0024] Adjust the modulation voltage vector according to the torque difference between the theoretical electromagnetic torque and the current electromagnetic torque to obtain an optimized pulse signal;

[0025] Return to the step of inputting the optimized pulse signal into the synchronous motor in the gas turbine to change the torque and speed of the synchronous motor.

[0026] Optionally, generating a theoretical electromagnetic torque based on a torque calculation model includes:

[0027] Obtain the number of phase pairs, mechanical angular velocity, current direct-axis current, and current quadrature-axis current of the synchronous motor;

[0028] The theoretical electromagnetic torque is calculated according to the stage logarithm, the mechanical angular velocity, the current direct-axis current, and the current quadrature-axis current.

[0029] Optionally, the performing a startup pre-check on the gas turbine includes:

[0030] detecting a speed of a synchronous motor of the gas turbine;

[0031] When the speed of the synchronous motor is greater than or equal to a preset ignition speed threshold, igniting the gas turbine;

[0032] Counting electromagnetic power and mechanical power of the gas turbine during continuous operation;

[0033] An operating state of the gas turbine is controlled according to the electromagnetic power and the mechanical power.

[0034] In addition, to achieve the above-mentioned purpose, the present invention further provides a gas turbine operation control device, the gas turbine operation control device comprising:

[0035] A pre-check module, used for performing a start-up pre-check on the gas turbine;

[0036] An adjustment module, used for adjusting the operating state of the gas turbine until the gas turbine passes the pre-inspection;

[0037] An acquisition module, used for acquiring current speed and current information of the synchronous motor in the gas turbine when the gas turbine is successfully started;

[0038] A control module is used to control the operating state of the gas turbine through a double closed-loop control model of the gas turbine based on the current speed and the current current information.

[0039] In addition, to achieve the above-mentioned purpose, the present invention also proposes a gas turbine operation control device, which includes: a memory, a processor, and a gas turbine operation control program stored in the memory and executable on the processor, and the gas turbine operation control program is configured to implement the steps of the gas turbine operation control method described above.

[0040] In addition, to achieve the above-mentioned purpose, the present invention also proposes a storage medium, on which a gas turbine operation control program is stored, and when the gas turbine operation control program is executed by a processor, the steps of the gas turbine operation control method described above are implemented.

[0041] In addition, to achieve the above-mentioned purpose, the present application also provides a computer program product, which includes a computer program, and when the computer program is executed by a processor, the steps of the gas turbine operation control method described above are implemented.

[0042] One or more technical solutions proposed in the present invention have at least the following technical effects: The present invention discloses a gas turbine operation control method, which includes: performing a start-up pre-inspection on the gas turbine; adjusting the operating state of the gas turbine until the gas turbine passes the pre-inspection; when the gas turbine is successfully started, obtaining the current speed and current current information of the synchronous motor in the gas turbine; and controlling the operating state of the gas turbine through a double closed-loop control model of the gas turbine based on the current speed and the current current information. Compared with the prior art, the present invention reduces the risk of gas turbine ignition and improves the combustion performance of the gas turbine entering the power generation loading stage by first performing a pre-inspection on the gas turbine, and obtains the current speed and current current information of the synchronous motor to achieve real-time control of the synchronous motor of the gas turbine through the double closed-loop control model of the gas turbine, thereby improving the power generation efficiency during the operation of the gas turbine and avoiding the technical problem in the prior art that the combustion performance fluctuates during the operation of the gas turbine and affects the power generation performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0044] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0045] Figure 1 It is a flow chart of a first embodiment of a gas turbine operation control method of the present invention;

[0046] Figure 2 It is a flow chart of a second embodiment of a gas turbine operation control method of the present invention;

[0047] Figure 3 A schematic diagram of a reference speed curve of an embodiment of a gas turbine operation control method of the present invention;

[0048] Figure 4 It is a structural block diagram of a first embodiment of a gas turbine operation control device of the present invention;

[0049] Figure 5 It is a structural schematic diagram of a gas turbine operation control device in a hardware operation environment involved in an embodiment of the present invention.

[0050] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0051] It should be understood that the specific embodiments described herein are only used to explain the technical solutions of the present application and are not used to limit the present application.

[0052] In order to better understand the technical solution of the present application, a detailed description will be given below in conjunction with the accompanying drawings and specific implementation methods.

[0053] Based on this, an embodiment of the present invention provides a gas turbine operation control method, referring to Figure 1 , Figure 1 The figure is a flow chart of a first embodiment of a gas turbine operation control method according to the present invention.

[0054] In this embodiment, the gas turbine operation control method includes:

[0055] Step S10: performing a startup pre-check on the gas turbine.

[0056] It should be noted that the execution subject of this embodiment may be a computing service device with data processing, network communication and program running functions, such as a tablet computer, a personal computer, a mobile phone, etc., or an electronic device capable of realizing the above functions, a control chip or controller of a gas turbine, etc. The control chip of a gas turbine is taken as an example to illustrate this embodiment and the following embodiments.

[0057] After the gas turbine is powered on, it needs to go through the starting stage and the power generation loading stage. At the beginning of the starting stage, the synchronous click of the gas turbine will control the rotation of the rotor. At this time, the synchronous motor is in the motor operation state. After the gas turbine is ignited successfully, the combustion chamber starts to work, and the high-temperature gas drives the turbine to work. The magnetic synchronous motor obtains energy from the power grid and works together with the energy generated by the turbine to generate torque on the shaft to maintain the normal operation of the compressor. As the speed continues to increase, the power generated by the turbine can eventually meet the working requirements of the compressor and maintain the normal operation of the micro gas turbine, thus entering the power generation loading stage and realizing the power generation process of the gas turbine, thereby improving the power generation efficiency of the synchronous motor of the gas turbine during the power generation loading stage.

[0058] Furthermore, the gas turbine is pre-started and checked, including:

[0059] detecting a speed of a synchronous motor of the gas turbine;

[0060] When the speed of the synchronous motor is greater than or equal to a preset ignition speed threshold, igniting the gas turbine;

[0061] Counting electromagnetic power and mechanical power of the gas turbine during continuous operation;

[0062] An operating state of the gas turbine is controlled according to the electromagnetic power and the mechanical power.

[0063] The preset ignition speed threshold is the minimum motor speed that supports the successful ignition of the gas turbine. The preset ignition speed threshold varies under different models or different environmental parameters. That is, the preset ignition speed threshold in this embodiment is associated with the model of the gas turbine and the environmental parameters of the area where the gas turbine is located. In this embodiment, it is between 8000r / min and 12000r / min, and this embodiment does not impose specific restrictions on this.

[0064] The ignition operation of the gas turbine includes but is not limited to: purging, pre-ignition and ignition. Purging refers to blowing out the flammable and explosive gases that may exist in the combustion chamber and replacing them with fresh air to avoid deflagration or explosion accidents during electric ignition; pre-ignition refers to opening the air damper to the low-fire ignition position and the electric spark igniter starts working; ignition refers to keeping the air damper at the low-fire position, opening the gas valve, and the igniter continuously releasing the arc for 3-5s.

[0065] Mechanical power refers to the part of the gas turbine that converts the chemical energy of the fuel into mechanical energy by using the high-temperature and high-pressure gas generated by the combustion of fuel to drive the turbine to rotate; electromagnetic power usually refers to the electrical power output by the generator.

[0066] Step S20: adjusting the operating state of the gas turbine until the gas turbine passes the pre-inspection.

[0067] Step S30: When the gas turbine is successfully started, the current speed and current information of the synchronous motor in the gas turbine are obtained.

[0068] The speed of the synchronous motor of the gas turbine may be detected by a speed sensor installed inside the gas turbine, or may be measured by other equipment or devices that can measure the motor speed, and this embodiment does not impose any specific restrictions on this.

[0069] The current information includes but is not limited to direct-axis current information and quadrature-axis current information of the synchronous motor, wherein the direct-axis current is used to control the magnetic field of the motor, and the quadrature-axis current is used to control the torque of the motor.

[0070] Step S40: controlling the operating state of the gas turbine through a double closed-loop control model of the gas turbine based on the current rotational speed and the current current information.

[0071] The architecture of the dual closed-loop control model in this embodiment and subsequent embodiments includes a speed loop control module and a current loop control module, wherein the current loop control module is further divided into a direct-axis current loop control module and a quadrature-axis current loop control module, the direct-axis current loop is used to control the motor magnetic field, and the quadrature-axis current loop control module is used to control the quadrature-axis current to achieve motor torque control.

[0072] This embodiment performs a pre-inspection on the gas turbine to reduce the risk of gas turbine ignition and improve the combustion performance of the gas turbine entering the power generation loading stage. It also obtains the current speed and current current information of the synchronous motor to achieve real-time control of the synchronous motor of the gas turbine through a double closed-loop control model of the gas turbine, thereby improving the power generation efficiency during the operation of the gas turbine and avoiding the technical problem in the prior art that the combustion performance fluctuates during the operation of the gas turbine, affecting the power generation performance.

[0073] Based on the first embodiment of the present application, in the second embodiment of the present application, the same or similar contents as those in the above-mentioned embodiment 1 can be referred to the above introduction, and will not be repeated in the following. Figure 2 , step S40, comprising:

[0074] Step S401: Obtain the theoretical speed corresponding to the current moment based on the reference speed curve.

[0075] Step S402: Determine the speed difference between the current speed and the theoretical speed.

[0076] Step S403: extracting the current direct-axis current and the current quadrature-axis current of the current current information.

[0077] Step S404: controlling the operating state of the gas turbine through a double closed-loop control model of the gas turbine according to the speed difference, the current direct-axis current and the current quadrature-axis current.

[0078] It should be noted that the reference speed curve can refer to Figure 3 In this embodiment, the speed of the synchronous motor of the gas turbine increases approximately linearly, wherein the motor speed remains unchanged when the ignition operation is performed in the startup pre-check stage.

[0079] The dual closed-loop control model of the gas turbine includes a speed loop control module and a current loop control module. The speed outer loop mainly controls the torque of the motor (by controlling the q-axis current), while the current inner loop accurately controls the stator current.

[0080] Further, controlling the operating state of the gas turbine through a double closed-loop control model of the gas turbine according to the speed difference, the current direct-axis current, and the current quadrature-axis current includes:

[0081] Outputting a reference quadrature-axis current through a speed loop PI controller according to the speed difference;

[0082] Obtaining a direct-axis voltage reference value of the synchronous motor through a direct-axis current loop PI controller according to the current direct-axis current and the preset direct-axis current;

[0083] Obtaining a quadrature-axis voltage reference value of the synchronous motor through a quadrature-axis current loop PI controller according to the current quadrature-axis current and the reference quadrature-axis current;

[0084] Modulating the direct-axis voltage reference value and the quadrature-axis voltage reference value to obtain a pulse signal;

[0085] The pulse signal is input to the synchronous motor in the gas turbine to change the torque and speed of the synchronous motor.

[0086] In the specific implementation, both the speed loop and the current loop use PI (proportional-integral) controllers. The input of the speed loop PI controller is the difference between the reference speed and the actual speed, and the output is the reference quadrature-axis current. The current loop PI controller includes a direct-axis current loop and a quadrature-axis current loop, which control the direct-axis current and the quadrature-axis current respectively to achieve magnetic field oriented control and torque control.

[0087] Modulating the direct-axis voltage reference value and the quadrature-axis voltage reference value may be based on space vector pulse width modulation technology to improve the efficiency of signal modulation. In this embodiment, space vector pulse width modulation approximates an ideal circular rotating magnetic field by synthesizing different voltage vectors, and has higher DC voltage utilization and better dynamic performance.

[0088] Furthermore, the gas turbine operation control method further comprises:

[0089] Generate theoretical electromagnetic torque based on torque calculation model;

[0090] Acquiring the current electromagnetic torque of the synchronous motor;

[0091] Adjust the modulation voltage vector according to the torque difference between the theoretical electromagnetic torque and the current electromagnetic torque to obtain an optimized pulse signal;

[0092] Return to the step of inputting the optimized pulse signal into the synchronous motor in the gas turbine to change the torque and speed of the synchronous motor.

[0093] In order to obtain the most effective voltage vector, get a more suitable pulse signal, and realize the control of the speed and torque of the motor, this embodiment can adjust the voltage vector based on the torque difference between the theoretical electromagnetic torque and the current electromagnetic torque as a constraint to quickly approach the ideal circular rotating magnetic field and obtain a more suitable pulse signal.

[0094] Further, generating a theoretical electromagnetic torque based on the torque calculation model includes:

[0095] Obtain the number of phase pairs, mechanical angular velocity, current direct-axis current, and current quadrature-axis current of the synchronous motor;

[0096] The theoretical electromagnetic torque is calculated according to the stage logarithm, the mechanical angular velocity, the current direct-axis current, and the current quadrature-axis current.

[0097] In the specific implementation, the calculation formula of the torque calculation model is:

[0098]

[0099] Where: Te is the electromagnetic torque, p is the number of pole pairs of the motor, ψf is the flux generated by the rotor permanent magnet, iq is the q-axis current, also called the torque current, id is the d-axis current, Ld is the d-axis inductance, and Lq is the q-axis inductance.

[0100] This embodiment obtains the theoretical speed corresponding to the current moment based on a reference speed curve; determines the speed difference between the current speed and the theoretical speed; extracts the current direct-axis current and the current quadrature-axis current of the current current information; controls the operating state of the gas turbine through a double closed-loop control model of the gas turbine according to the speed difference, the current direct-axis current and the current quadrature-axis current, and controls the operating state of the gas turbine through a double closed-loop control model based on the speed difference between the theoretical speed and the current speed of the synchronous motor and the direct-axis current and quadrature-axis current of the motor, thereby accurately controlling the speed and current of the motor, thereby improving the dynamic performance and stability of the system and also enhancing the robustness of the system.

[0101] This application also provides a gas turbine operation control device, please refer to Figure 4 , the gas turbine operation control device comprises:

[0102] The pre-check module 10 is used to perform a start-up pre-check on the gas turbine.

[0103] The adjustment module 20 is used to adjust the operating state of the gas turbine until the gas turbine passes the pre-inspection.

[0104] The acquisition module 30 is used to acquire the current speed and current information of the synchronous motor in the gas turbine when the gas turbine is successfully started.

[0105] The control module 40 is used to control the operating state of the gas turbine through a double closed-loop control model of the gas turbine based on the current rotational speed and the current current information.

[0106] This embodiment performs a pre-inspection on the gas turbine to reduce the risk of gas turbine ignition and improve the combustion performance of the gas turbine entering the power generation loading stage. It also obtains the current speed and current current information of the synchronous motor to achieve real-time control of the synchronous motor of the gas turbine through a double closed-loop control model of the gas turbine, thereby improving the power generation efficiency during the operation of the gas turbine and avoiding the technical problem in the prior art that the combustion performance fluctuates during the operation of the gas turbine, affecting the power generation performance.

[0107] In one embodiment, the control module 40 is also used to obtain the theoretical speed corresponding to the current moment based on the reference speed curve; determine the speed difference between the current speed and the theoretical speed; extract the current direct-axis current and the current cross-axis current of the current current information; and control the operating state of the gas turbine through a dual closed-loop control model of the gas turbine according to the speed difference, the current direct-axis current and the current cross-axis current.

[0108] In one embodiment, the control module 40 is also used to output a reference quadrature-axis current through a speed loop PI controller according to the speed difference; obtain a direct-axis voltage reference value of the synchronous motor through a direct-axis current loop PI controller according to the current direct-axis current and the preset direct-axis current; obtain a quadrature-axis voltage reference value of the synchronous motor through a quadrature-axis current loop PI controller according to the current quadrature-axis current and the reference quadrature-axis current; modulate the direct-axis voltage reference value and the quadrature-axis voltage reference value to obtain a pulse signal; and input the pulse signal into the synchronous motor in the gas turbine to change the torque and speed of the synchronous motor.

[0109] In one embodiment, the control module 40 is also used to generate a theoretical electromagnetic torque based on a torque calculation model; obtain the current electromagnetic torque of the synchronous motor; adjust the modulation voltage vector according to the torque difference between the theoretical electromagnetic torque and the current electromagnetic torque to obtain an optimized pulse signal; and return to the step of inputting the optimized pulse signal into the synchronous motor in the gas turbine to change the torque and speed of the synchronous motor.

[0110] In one embodiment, the control module 40 is also used to obtain the stage logarithm, mechanical angular velocity, current direct-axis current and current quadrature-axis current of the synchronous motor; and calculate the theoretical electromagnetic torque based on the stage logarithm, the mechanical angular velocity, the current direct-axis current and the current quadrature-axis current.

[0111] In one embodiment, the pre-check module 10 is also used to detect the speed of the synchronous motor of the gas turbine; when the speed of the synchronous motor is greater than or equal to a preset ignition speed threshold, perform an ignition operation on the gas turbine; count the electromagnetic power and mechanical power of the gas turbine during continuous operation; and control the operating state of the gas turbine according to the electromagnetic power and the mechanical power.

[0112] The present application provides a gas turbine operation control device, which includes: at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor so that the at least one processor can execute the gas turbine operation control method in the above-mentioned embodiment one.

[0113] Reference below Figure 5 , which shows a schematic diagram of the structure of a gas turbine operation control device suitable for implementing the embodiment of the present application. The gas turbine operation control device in the embodiment of the present application may include but is not limited to mobile terminals such as mobile phones, laptop computers, digital broadcast receivers, PDAs (Personal Digital Assistants), PADs (Portable Application Descriptions), PMPs (Portable Media Players), vehicle-mounted terminals (such as vehicle-mounted navigation terminals), etc., and fixed terminals such as digital TVs, desktop computers, etc. Figure 5 The gas turbine operation control device shown is only an example and should not bring any limitation to the functions and scope of use of the embodiments of the present application.

[0114] like Figure 5As shown, the gas turbine operation control device may include a processing device 1001 (e.g., a central processing unit, a graphics processing unit, etc.), which can perform various appropriate actions and processes according to a program stored in a read-only memory (ROM) 1002 or a program loaded from a storage device 1003 to a random access memory (RAM) 1004. Various programs and data required for the operation of the gas turbine operation control device are also stored in the RAM 1004. The processing device 1001, the ROM 1002, and the RAM 1004 are connected to each other via a bus 1005. An input / output (I / O) interface 1006 is also connected to the bus. Typically, the following systems may be connected to the I / O interface 1006: input devices 1007 including, for example, a touch screen, a touchpad, a keyboard, a mouse, an image sensor, a microphone, an accelerometer, a gyroscope, etc.; output devices 1008 including, for example, a liquid crystal display (LCD), a speaker, a vibrator, etc.; storage devices 1003 including, for example, a magnetic tape, a hard disk, etc.; and communication devices 1009. The communication device 1009 may allow the gas turbine operation control device to communicate with other devices wirelessly or by wire to exchange data. Although the gas turbine operation control device with various systems is shown in the figure, it should be understood that it is not required to implement or have all the systems shown. More or fewer systems may be implemented or have instead.

[0115] In particular, according to the embodiments disclosed in the present application, the process described above with reference to the flowchart can be implemented as a computer software program. For example, the embodiments disclosed in the present application include a computer program product, which includes a computer program carried on a computer-readable medium, and the computer program includes a program code for executing the method shown in the flowchart. In such an embodiment, the computer program can be downloaded and installed from a network through a communication device, or installed from a storage device 1003, or installed from a ROM 1002. When the computer program is executed by the processing device 1001, the above-mentioned functions defined in the method of the embodiment disclosed in the present application are executed.

[0116] The gas turbine operation control device provided by the present application adopts the gas turbine operation control method in the above embodiment, which can solve the technical problem of gas turbine operation control. Compared with the prior art, the beneficial effects of the gas turbine operation control device provided by the present application are the same as the beneficial effects of the gas turbine operation control method provided by the above embodiment, and other technical features in the gas turbine operation control device are the same as the features disclosed in the method of the previous embodiment, which will not be repeated here.

[0117] It should be understood that the various parts disclosed in this application can be implemented by hardware, software, firmware or a combination thereof. In the description of the above embodiments, specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

[0118] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

[0119] The present application provides a computer-readable storage medium having computer-readable program instructions (ie, computer programs) stored thereon, and the computer-readable program instructions are used to execute the gas turbine operation control method in the above-mentioned embodiment.

[0120] The computer-readable storage medium provided in the present application may be, for example, a USB flash drive, but is not limited to electrical, magnetic, optical, electromagnetic, infrared, or semiconductor systems, systems or devices, or any combination of the above. More specific examples of computer-readable storage media may include, but are not limited to: an electrical connection with one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above. In this embodiment, the computer-readable storage medium may be any tangible medium containing or storing a program that can be used by or in combination with an instruction execution system, system or device. The program code contained on the computer-readable storage medium may be transmitted using any appropriate medium, including but not limited to: wires, optical cables, RF (Radio Frequency), etc., or any suitable combination of the above.

[0121] The computer-readable storage medium may be included in the gas turbine operation control device; or may exist independently without being assembled into the gas turbine operation control device.

[0122] The computer-readable storage medium carries one or more programs. When the one or more programs are executed by the gas turbine operation control device, the gas turbine operation control device performs gas turbine operation control.

[0123] Computer program code for performing the operations of the present application may be written in one or more programming languages ​​or a combination thereof, including object-oriented programming languages ​​such as Java, Smalltalk, C++, and conventional procedural programming languages ​​such as "C" or similar programming languages. The program code may be executed entirely on the user's computer, partially on the user's computer, as a separate software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any type of network, including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computer (e.g., via the Internet using an Internet service provider).

[0124] The flow chart and block diagram in the accompanying drawings illustrate the possible architecture, function and operation of the system, method and computer program product according to various embodiments of the present application. In this regard, each square box in the flow chart or block diagram can represent a module, a program segment or a part of a code, and the module, the program segment or a part of the code contains one or more executable instructions for realizing the specified logical function. It should also be noted that in some alternative implementations, the functions marked in the square box can also occur in a sequence different from that marked in the accompanying drawings. For example, two square boxes represented in succession can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each square box in the block diagram and / or flow chart, and the combination of the square boxes in the block diagram and / or flow chart can be implemented with a dedicated hardware-based system that performs a specified function or operation, or can be implemented with a combination of dedicated hardware and computer instructions.

[0125] The modules involved in the embodiments described in this application may be implemented by software or hardware, wherein the name of the module does not constitute a limitation on the unit itself in some cases.

[0126] The readable storage medium provided in the present application is a computer-readable storage medium, which stores computer-readable program instructions (i.e., computer programs) for executing the above-mentioned gas turbine operation control method, and can solve the technical problems of gas turbine operation control. Compared with the prior art, the beneficial effects of the computer-readable storage medium provided in the present application are the same as the beneficial effects of the gas turbine operation control method provided in the above-mentioned embodiment, and will not be repeated here.

[0127] The present application also provides a computer program product, comprising a computer program, wherein when the computer program is executed by a processor, the steps of the gas turbine operation control method as described above are implemented.

[0128] The computer program product provided in this application can solve the technical problem of gas turbine operation control. Compared with the prior art, the beneficial effects of the computer program product provided in this application are the same as the beneficial effects of the gas turbine operation control method provided in the above embodiment, which will not be repeated here.

[0129] The above descriptions are only some embodiments of the present application, and are not intended to limit the patent scope of the present application. All equivalent structural changes made using the contents of the present application specification and drawings under the technical concept of the present application, or direct / indirect applications in other related technical fields are included in the patent protection scope of the present application.

Claims

1. A gas turbine operation control method, characterized in that: The gas turbine operation control method comprises: Performing a startup pre-check on the gas turbine; Adjusting the operating state of the gas turbine until the gas turbine passes the pre-inspection; When the gas turbine is successfully started, obtaining current speed and current information of the synchronous motor in the gas turbine; The operating state of the gas turbine is controlled through a double closed-loop control model of the gas turbine based on the current rotational speed and the current current information.

2. The method according to claim 1, characterized in that The controlling the operating state of the gas turbine through a double closed-loop control model of the gas turbine based on the current speed and the current current information includes: Obtain the theoretical speed corresponding to the current moment based on the reference speed curve; Determining a speed difference between the current speed and a theoretical speed; Extracting a current direct-axis current and a current quadrature-axis current of the current information; The operating state of the gas turbine is controlled through a double closed-loop control model of the gas turbine according to the rotational speed difference, the current direct-axis current and the current quadrature-axis current.

3. The method according to claim 2, characterized in that The controlling the operating state of the gas turbine through a double closed-loop control model of the gas turbine according to the speed difference, the current direct-axis current, and the current quadrature-axis current includes: Outputting a reference quadrature-axis current through a speed loop PI controller according to the speed difference; Obtaining a direct-axis voltage reference value of the synchronous motor through a direct-axis current loop PI controller according to the current direct-axis current and the preset direct-axis current; Obtaining a quadrature-axis voltage reference value of the synchronous motor through a quadrature-axis current loop PI controller according to the current quadrature-axis current and the reference quadrature-axis current; Modulating the direct-axis voltage reference value and the quadrature-axis voltage reference value to obtain a pulse signal; The pulse signal is input to the synchronous motor in the gas turbine to change the torque and speed of the synchronous motor.

4. The method according to claim 3, characterized in that The gas turbine operation control method further includes: Generate theoretical electromagnetic torque based on torque calculation model; Acquiring the current electromagnetic torque of the synchronous motor; Adjust the modulation voltage vector according to the torque difference between the theoretical electromagnetic torque and the current electromagnetic torque to obtain an optimized pulse signal; Return to the step of inputting the optimized pulse signal into the synchronous motor in the gas turbine to change the torque and speed of the synchronous motor.

5. The method according to claim 4, characterized in that The generating of theoretical electromagnetic torque based on the torque calculation model comprises: Obtain the number of phase pairs, mechanical angular velocity, current direct-axis current, and current quadrature-axis current of the synchronous motor; The theoretical electromagnetic torque is calculated according to the stage logarithm, the mechanical angular velocity, the current direct-axis current, and the current quadrature-axis current.

6. The method according to claim 1, characterized in that The pre-startup inspection of the gas turbine includes: Detecting the speed of the synchronous motor of the gas turbine; When the speed of the synchronous motor is greater than or equal to a preset ignition speed threshold, igniting the gas turbine; Counting electromagnetic power and mechanical power of the gas turbine during continuous operation; An operating state of the gas turbine is controlled according to the electromagnetic power and the mechanical power.

7. A gas turbine operation control device, characterized in that: The gas turbine operation control device comprises: A pre-check module, used for performing a start-up pre-check on the gas turbine; An adjustment module, used for adjusting the operating state of the gas turbine until the gas turbine passes the pre-inspection; An acquisition module, used for acquiring current speed and current current information of the synchronous motor in the gas turbine when the gas turbine is successfully started; A control module is used to control the operating state of the gas turbine through a double closed-loop control model of the gas turbine based on the current speed and the current current information.

8. A gas turbine operation control device, characterized in that: The gas turbine operation control device includes: a memory, a processor, and a gas turbine operation control program stored in the memory and executable on the processor, wherein the gas turbine operation control program is configured to implement the steps of the gas turbine operation control method according to any one of claims 1 to 6.

9. A storage medium, characterized in that: The storage medium stores a gas turbine operation control program, and when the gas turbine operation control program is executed by the processor, the steps of the gas turbine operation control method according to any one of claims 1 to 6 are implemented.

10. A computer program product, characterized in that The computer program product comprises a computer program, and when the computer program is executed by a processor, the steps of the gas turbine operation control method according to any one of claims 1 to 6 are implemented.

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