Voltage following system and method based on automatic voltage control system of gas unit

Abstract

The invention discloses a voltage following system and method based on an automatic voltage control system of a gas turbine unit, and relates to the technical field of power system control, and the method comprises the steps that the automatic voltage control system issues an instruction to a generator controller; the generator controller performs cooperative control on the instruction to generate an instruction for increasing or decreasing excitation; and the generator controller issues an instruction of increasing or reducing excitation to the excitation control system. Through the implementation of the system, accurate control over the voltage and reactive power of the gas turbine can be effectively improved. The system controls and adjusts excitation of each generator according to high-voltage bus voltage change action caused by load fluctuation, and primary voltage control on a power plant side is realized. The system receives a bus voltage instruction issued by a superior in real time, compares the bus voltage instruction with the current bus voltage, calculates the target output reactive power of the high-voltage bus of the power plant, and gives an adjustment scheme within the generator capacity range in the current operation mode after comprehensively considering system and equipment faults and various limiting and locking conditions.

Description

Technical Field

[0001] The present invention relates to the technical field of power system control, and in particular to a voltage following system based on an automatic voltage control system of a gas generator set. Background Art

[0002] With the continuous expansion of the power grid, the grid structure has been significantly strengthened, and the reactive power supply and reactive compensation capacity have increased significantly. The static voltage assessment curve issued quarterly in the past is difficult to adapt to the dynamic reactive power flow changes, and the real-time performance and accuracy are insufficient. It is difficult to substantially improve the voltage control level. The original automatic voltage control system cannot reasonably carry out voltage control during the operation process of load increase after the generator is connected to the grid, which not only increases the phase leading depth of the unit, affects the stable operation of the unit and the power grid, but also increases the network loss and affects the economy. After the generator is connected to the grid, the voltage following method of the automatic voltage control system can immediately coordinate the reactive power flow of the power grid and the reactive power of the generator, realize the automatic regulation of the bus voltage and reactive power of the power plant, and reasonably coordinate the reactive distribution of the power grid to ensure the safe and stable operation of the power grid, improve the voltage quality and reduce the network loss. Summary of the invention

[0003] In view of the above-mentioned problems, the present invention is proposed.

[0004] Therefore, the technical problem solved by the present invention is that the prior art does not consider the automatic control of voltage and reactive power during the load increase process after the gas unit is connected to the grid, so that the voltage and reactive power in the process do not meet the target requirements, limiting the energy efficiency of the gas unit. In addition, although the automatic voltage control system of the gas unit controls the system functions by remote control, it relies too much on manual experience, making it difficult for the system to respond quickly and accurately to superior instructions.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: a voltage following system based on an automatic voltage control system of a gas generator set, which comprises the following steps:

[0006] Automatic voltage control systems, generator controllers and excitation control systems.

[0007] The automatic voltage control system comprises a host computer device, a slave computer device, a collection device and an internal network.

[0008] The excitation control system includes an excitation controller and an excitation control system execution part.

[0009] As a preferred solution of the voltage following system based on the automatic voltage control system of the gas-fired unit described in the present invention, the automatic voltage control system communicates with the master station located at the upper level through the RTU channel, uploads the required real-time information to the master station system, accepts the control instructions of the master station, and connects with the lower computer to optimize the allocation of the reactive power output of the unit in real time, or completes the optimization control of the reactive voltage at the plant end according to the preset voltage curve of the high-voltage side bus.

[0010] The generator controller receives commands from the automatic voltage control system, monitors, controls and protects the generator, and sends instructions to increase or decrease excitation to the excitation control system in combination with the actual operating conditions of the gas unit.

[0011] The excitation controller in the excitation control system receives the instruction of increasing or decreasing excitation sent by the generator controller, and the execution part of the excitation control system completes the adjustment of reactive power of the gas unit.

[0012] As a preferred solution of the voltage following system based on the automatic voltage control system of the gas generator set described in the present invention, wherein: the lower computer device communicates with the redundant upper computer device through a dual-network networking mode, the automatic voltage control system communicates with the upper level to obtain the line target voltage instruction, the automatic voltage control system communicates with the generator controller to obtain the information of the generator set and the plant bus, performs calculations based on the obtained information, reasonably distributes the reactive power of the generator set on the bus and generates instructions to be sent to the generator controller.

[0013] Another object of the present invention is to provide a voltage following method based on an automatic voltage control system of a gas-fired unit, which can achieve precise regulation of the reactive power and bus voltage of the gas-fired unit through coordinated control among the automatic voltage control system, the generator controller and the excitation control system, thereby ensuring the stability and reliability of the grid voltage.

[0014] In order to solve the above technical problems, the present invention provides the following technical solutions: a voltage following method based on an automatic voltage control system of a gas generator set, comprising:

[0015] The automatic voltage control system sends instructions to the generator controller; the generator controller coordinates the instructions and generates instructions to increase or decrease excitation; the generator controller sends the instructions to increase or decrease excitation to the excitation control system.

[0016] As a preferred solution of the voltage following method based on the automatic voltage control system of the gas generator set described in the present invention, wherein: the issued instructions include ca90r4csr, ca90r4csl, K90RL and L43CA.

[0017] As a preferred scheme of the voltage following method based on the automatic voltage control system of the gas unit described in the present invention, wherein: the generator controller performs collaborative control on the instructions, including: the automatic voltage control system is not put into operation, the generator controller does not allow the automatic voltage control system to control, the excitation control system does not allow the automatic voltage control system to control, the actual load of the gas unit does not reach the allowable range, the actual voltage of the gas unit does not reach the allowable range, the gas unit has an alarm signal, and the unit control mode allows the instruction to be False.

[0018] The automatic voltage control system is activated, the generator controller does not allow the automatic voltage control system to control, the excitation control system does not allow the automatic voltage control system to control, the actual load of the gas unit does not reach the allowable range, the actual voltage of the gas unit does not reach the allowable range, the gas unit has an alarm signal, and the unit control mode permission instruction is False.

[0019] The automatic voltage control system is activated, the generator controller allows the automatic voltage control system to control, the excitation control system does not allow the automatic voltage control system to control, the actual load of the gas unit does not reach the allowable range, the actual voltage of the gas unit does not reach the allowable range, the gas unit has an alarm signal, and the unit control mode permission instruction is False.

[0020] The automatic voltage control system is activated, the generator controller allows the automatic voltage control system to control, the excitation control system allows the automatic voltage control system to control, the actual load of the gas unit does not reach the allowable range, the actual voltage of the gas unit does not reach the allowable range, the gas unit has an alarm signal, and the unit control mode permission instruction is False.

[0021] As a preferred solution of the voltage following system based on the automatic voltage control system of the gas unit described in the present invention, wherein: the generator controller's collaborative control of the instructions also includes: the automatic voltage control system is put into operation, the generator controller allows the automatic voltage control system to control, the excitation control system allows the automatic voltage control system to control, the actual load of the gas unit reaches the allowable range, the actual voltage of the gas unit does not reach the allowable range, the gas unit has an alarm signal, and the unit control mode allows the instruction to be False.

[0022] The automatic voltage control system is put into operation, the generator controller allows the automatic voltage control system to control, the excitation control system allows the automatic voltage control system to control, the actual load of the gas unit reaches the allowable range, the actual voltage of the gas unit reaches the allowable range, the gas unit has an alarm signal, and the unit control mode permission instruction is False.

[0023] The automatic voltage control system is put into operation, the generator controller allows the automatic voltage control system to control, the excitation control system allows the automatic voltage control system to control, the actual load of the gas unit reaches the allowable range, the actual voltage of the gas unit reaches the allowable range, there is no alarm signal from the gas unit, and the unit control mode permission instruction is True.

[0024] As a preferred solution of the voltage following system based on the automatic voltage control system of the gas generator set described in the present invention, the generator controller sends the instruction to increase or decrease the excitation to the excitation control system, including the control module's logical control of the three signals ca90r4csr, L43CA and K90RL to form the L4EX-RASISE instruction.

[0025] The control module forms the L4EX-LOWER instruction through the logic control of the three signals ca90r4csl, L43CA and K90RL.

[0026] Among them, the L4EX-RASISE instruction is the magnetization information, and the L4EX-LOWER instruction is the demagnetization information.

[0027] The generator controller sends the L4EX-RASISE or L4EX-LOWER command to the excitation control system.

[0028] The excitation controller receives the L4EX-RASISE or L4EX-LOWER instruction from the generator controller, and increases or decreases the excitation by controlling the trigger pulses of the thyristors of the three-phase fully controlled rectifier bridge in the excitation control system.

[0029] A computer device comprises a memory and a processor, wherein the memory stores a computer program, and when the processor executes the computer program, the steps of the voltage following method based on the automatic voltage control system of a gas generator set as described above are implemented.

[0030] A computer-readable storage medium stores a computer program, which, when executed by a processor, implements the steps of the voltage following method based on the automatic voltage control system of a gas generator set as described above.

[0031] Beneficial effects of the present invention: Through the implementation of this system, the precise control of the voltage and reactive power of the gas turbine can be effectively improved. The system controls and adjusts the excitation of each generator according to the change of the high-voltage bus voltage caused by load fluctuations, and realizes the primary voltage control on the power plant side. The system receives the bus voltage command issued by the superior in real time, compares it with the current bus voltage, calculates the target output reactive power of the high-voltage bus of the power plant, and gives the adjustment plan within the capacity of the generator under the current operating mode after comprehensively considering the system and equipment failures and various restrictions and locking conditions. The executive controller of each unit controls the excitation regulator to perform excitation adjustment, and finally improves the efficiency of the automatic control of the voltage and reactive power of the gas unit.

[0032] The system collects real-time data such as bus voltage, bus reactive power (reactive power on the high-voltage side of the main transformer), unit active power, reactive power, stator voltage, stator current, excitation voltage, excitation current, etc., calculates the system impedance on the power plant side and the reactive power that should be injected from the bus into the grid under the set target voltage value, and through the unit PQ curve, considers various limitations of the unit and reasonably distributes the reactive power change to each online adjustable unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0034] Figure 1 The overall framework diagram of the voltage following system based on the automatic voltage control system of the gas generator set provided in the first embodiment of the present invention.

[0035] Figure 2 The overall flow chart of the voltage following method based on the automatic voltage control system of the gas generator set provided in the second embodiment of the present invention. DETAILED DESCRIPTION

[0036] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the drawings of the specification. Obviously, the described embodiments are part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary persons in the art without creative work should fall within the scope of protection of the present invention.

[0037] Example 1, reference Figure 1 , is an embodiment of the present invention, providing a voltage following system based on an automatic voltage control system of a gas generator set, characterized in that:

[0038] Automatic voltage control system 100 , generator controller 200 and excitation control system 300 .

[0039] The automatic voltage control system 100 includes a host device, a slave device, a collection device and an internal network.

[0040] The excitation control system 300 includes an excitation controller and an excitation control system execution part.

[0041] The automatic voltage control system 100 communicates with the master station located at the upper level through the RTU channel, uploads the required real-time information to the master station system, accepts the control instructions from the master station, and connects with the lower computer to optimize the allocation of the reactive power output of the unit in real time, or completes the optimal control of the reactive voltage at the plant end according to the preset voltage curve of the high-voltage side bus.

[0042] The generator controller 200 receives commands from the automatic voltage control system, monitors, controls and protects the generator, and sends instructions to increase or decrease excitation to the excitation control system in combination with the actual operating conditions of the gas unit.

[0043] The excitation controller in the excitation control system 300 receives the instruction to increase or decrease the excitation from the generator controller 200, and the execution part of the excitation control system completes the adjustment of the reactive power of the gas unit.

[0044] The lower computer device communicates with the redundant upper computer device through a dual-network networking method. The automatic voltage control system 100 communicates with the upper level to obtain the line target voltage instruction. The automatic voltage control system 100 communicates with the generator controller 200 to obtain the information of the generator set and the factory bus. According to the obtained information, calculations are performed to reasonably distribute the reactive power of the generator set on the bus and form instructions to be sent to the generator controller 200.

[0045] Example 2, reference Figure 2 , is an embodiment of the present invention, and provides a method for a voltage following system based on an automatic voltage control system of a gas generator set, characterized in that:

[0046] S1: The automatic voltage control system sends instructions to the generator controller.

[0047] The issued instructions include ca90r4csr, ca90r4csl, K90RL and L43CA.

[0048] Among them, K90RL is the instruction time, and the instruction output K90RL defines the duration after other input instructions meet the requirements. L43CA is a comprehensive value, and the present invention optimizes the formation of the L43CA value. L43CA is the unit control mode permission instruction.

[0049] S2: The generator controller coordinates the instructions and generates instructions to increase or decrease excitation.

[0050] The generator controller coordinates the control of the instructions, including: the automatic voltage control system is not activated, the generator controller does not allow the automatic voltage control system to control, the excitation control system does not allow the automatic voltage control system to control, the actual load of the gas unit does not reach the allowable range, the actual voltage of the gas unit does not reach the allowable range, the gas unit has an alarm signal, and the unit control mode allows the instruction to be False.

[0051] The automatic voltage control system is activated, the generator controller does not allow the automatic voltage control system to control, the excitation control system does not allow the automatic voltage control system to control, the actual load of the gas unit does not reach the allowable range, the actual voltage of the gas unit does not reach the allowable range, the gas unit has an alarm signal, and the unit control mode permission instruction is False.

[0052] The automatic voltage control system is activated, the generator controller allows the automatic voltage control system to control, the excitation control system does not allow the automatic voltage control system to control, the actual load of the gas unit does not reach the allowable range, the actual voltage of the gas unit does not reach the allowable range, the gas unit has an alarm signal, and the unit control mode permission instruction is False.

[0053] The automatic voltage control system is activated, the generator controller allows the automatic voltage control system to control, the excitation control system allows the automatic voltage control system to control, the actual load of the gas unit does not reach the allowable range, the actual voltage of the gas unit does not reach the allowable range, the gas unit has an alarm signal, and the unit control mode permission instruction is False.

[0054] The generator controller's coordinated control of instructions also includes: the automatic voltage control system is put into operation, the generator controller allows the automatic voltage control system to control, the excitation control system allows the automatic voltage control system to control, the actual load of the gas unit reaches the allowable range, the actual voltage of the gas unit does not reach the allowable range, the gas unit has an alarm signal, and the unit control mode allows the instruction to be False.

[0055] The automatic voltage control system is put into operation, the generator controller allows the automatic voltage control system to control, the excitation control system allows the automatic voltage control system to control, the actual load of the gas unit reaches the allowable range, the actual voltage of the gas unit reaches the allowable range, the gas unit has an alarm signal, and the unit control mode permission instruction is False.

[0056] The automatic voltage control system is put into operation, the generator controller allows the automatic voltage control system to control, the excitation control system allows the automatic voltage control system to control, the actual load of the gas unit reaches the allowable range, the actual voltage of the gas unit reaches the allowable range, there is no alarm signal from the gas unit, and the unit control mode permission instruction is True.

[0057] The original manual control mode is retained in the method. The manual control mode is implemented by the human-machine interaction interface of the generator controller. When the unit control mode on the human-machine interaction interface adopts REMOTE, the unit control mode permission instruction is True.

[0058] S3: The generator controller sends the command to increase or decrease excitation to the excitation control system.

[0059] The generator controller sends the instruction to increase or decrease the excitation to the excitation control system, including the control module's logical control of the three signals ca90r4csr, L43CA and K90RL to form the L4EX-RASISE instruction.

[0060] The control module forms the L4EX-LOWER instruction through the logic control of the three signals ca90r4csl, L43CA and K90RL.

[0061] Among them, the L4EX-RASISE instruction is the magnetization information, and the L4EX-LOWER instruction is the demagnetization information.

[0062] The generator controller sends the L4EX-RASISE or L4EX-LOWER command to the excitation control system.

[0063] The excitation controller receives the L4EX-RASISE or L4EX-LOWER instruction from the generator controller, and increases or decreases the excitation by controlling the trigger pulses of the thyristors of the three-phase fully controlled rectifier bridge in the excitation control system.

[0064] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium, including several instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk, etc., which can store program code.

[0065] The logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as an ordered list of executable instructions for implementing logical functions, and can be embodied in any computer-readable medium for use by an instruction execution system, device or apparatus (such as a computer-based system, a system including a processor, or other system that can fetch instructions from an instruction execution system, device or apparatus and execute instructions), or in conjunction with such instruction execution systems, devices or apparatuses. For the purposes of this specification, "computer-readable medium" can be any device that can contain, store, communicate, propagate or transmit a program for use by an instruction execution system, device or apparatus, or in conjunction with such instruction execution systems, devices or apparatuses.

[0066] More specific examples of computer-readable media (a non-exhaustive list) include the following: an electrical connection with one or more wires (electronic device), a portable computer disk case (magnetic device), a random access memory (RAM), a read-only memory (ROM), an erasable and programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disk read-only memory (CDROM). In addition, the computer-readable medium may even be a paper or other suitable medium on which the program is printed, since the program may be obtained electronically, for example, by optically scanning the paper or other medium, followed by editing, deciphering or, if necessary, processing in another suitable manner, and then stored in a computer memory.

[0067] It should be understood that the various parts of the present invention can be implemented by hardware, software, firmware or a combination thereof. In the above-mentioned embodiments, a plurality of steps or methods can be implemented by software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented by hardware, as in another embodiment, it can be implemented by any one of the following technologies known in the art or their combination: a discrete logic circuit having a logic gate circuit for implementing a logic function for a data signal, a dedicated integrated circuit having a suitable combination of logic gate circuits, a programmable gate array (PGA), a field programmable gate array (FPGA), etc.

[0068] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. The voltage following system based on the automatic voltage control system of the gas generator set is characterized by: include: Automatic voltage control system (100), generator controller (200) and excitation control system (300); The automatic voltage control system (100) comprises a host device, a slave device, a collection device and an internal network; The excitation control system (300) comprises an excitation controller and an excitation control system execution part.

2. The voltage following system based on the automatic voltage control system of the gas generator set according to claim 1, characterized in that: The automatic voltage control system (100) communicates with a master station located at an upper level through an RTU channel, uploads required real-time information to the master station system, receives control instructions from the master station, and connects with lower computers to optimize the distribution of reactive power output by the units in real time, or completes optimal control of reactive voltage at the plant station end according to a preset voltage curve of the high-voltage side bus; The generator controller (200) receives commands from the automatic voltage control system, monitors, controls and protects the generator, and sends instructions to increase or decrease excitation to the excitation control system in combination with the actual operating conditions of the gas unit; The excitation controller in the excitation control system (300) receives an instruction from the generator controller (200) to increase or decrease excitation, and the execution part of the excitation control system completes the regulation of reactive power of the gas generator set.

3. The voltage following system based on the automatic voltage control system of the gas generator set according to claim 2, characterized in that: The lower computer device communicates with the redundant upper computer device through a dual network networking mode. The automatic voltage control system (100) communicates with the upper level to obtain the line target voltage instruction. The automatic voltage control system (100) communicates with the generator controller (200) to obtain the information of the generator set and the factory bus. According to the obtained information, calculations are performed to reasonably distribute reactive power to the generator set on the bus and form instructions to be sent to the generator controller (200).

4. A method using a voltage following system based on an automatic voltage control system of a gas generator set as claimed in any one of claims 1 to 3, characterized in that: The automatic voltage control system sends instructions to the generator controller; The generator controller coordinates the instructions and generates instructions to increase or decrease excitation; The generator controller sends instructions to increase or decrease excitation to the excitation control system.

5. The voltage following method based on the automatic voltage control system of the gas generator set according to claim 4, characterized in that: The issued instructions include ca90r4csr, ca90r4csl, K90RL and L43CA.

6. The voltage following method based on the automatic voltage control system of the gas generator set according to claim 5, characterized in that: The generator controller performs coordinated control on the command, including: the automatic voltage control system is not put into operation, the generator controller does not allow the automatic voltage control system to control, the excitation control system does not allow the automatic voltage control system to control, the actual load of the gas unit does not reach the allowable range, the actual voltage of the gas unit does not reach the allowable range, the gas unit has an alarm signal, and the unit control mode allows the command to be False; The automatic voltage control system is activated, the generator controller does not allow the automatic voltage control system to control, the excitation control system does not allow the automatic voltage control system to control, the actual load of the gas unit does not reach the allowable range, the actual voltage of the gas unit does not reach the allowable range, the gas unit has an alarm signal, and the unit control mode permission instruction is False; The automatic voltage control system is activated, the generator controller allows the automatic voltage control system to control, the excitation control system does not allow the automatic voltage control system to control, the actual load of the gas unit does not reach the allowable range, the actual voltage of the gas unit does not reach the allowable range, the gas unit has an alarm signal, and the unit control mode permission instruction is False; The automatic voltage control system is activated, the generator controller allows the automatic voltage control system to control, the excitation control system allows the automatic voltage control system to control, the actual load of the gas unit does not reach the allowable range, the actual voltage of the gas unit does not reach the allowable range, the gas unit has an alarm signal, and the unit control mode permission instruction is False.

7. The voltage following method based on the automatic voltage control system of the gas generator set according to claim 6, characterized in that: The generator controller cooperatively controls the command, and further includes: the automatic voltage control system is put into operation, the generator controller allows the automatic voltage control system to control, the excitation control system allows the automatic voltage control system to control, the actual load of the gas unit reaches the allowable range, the actual voltage of the gas unit does not reach the allowable range, the gas unit has an alarm signal, and the unit control mode allows the command to be False; The automatic voltage control system is activated, the generator controller allows the automatic voltage control system to control, the excitation control system allows the automatic voltage control system to control, the actual load of the gas unit reaches the allowable range, the actual voltage of the gas unit reaches the allowable range, the gas unit has an alarm signal, and the unit control mode permission instruction is False; The automatic voltage control system is put into operation, the generator controller allows the automatic voltage control system to control, the excitation control system allows the automatic voltage control system to control, the actual load of the gas unit reaches the allowable range, the actual voltage of the gas unit reaches the allowable range, there is no alarm signal from the gas unit, and the unit control mode permission instruction is True.

8. The voltage following method based on the automatic voltage control system of the gas generator set according to claim 7, characterized in that: The generator controller sends the instruction of increasing or decreasing excitation to the excitation control system, including the control module logically controlling the three signals ca90r4csr, L43CA and K90RL to form the L4EX-RASISE instruction; The control module forms the L4EX-LOWER instruction by logically controlling the three signals ca90r4csl, L43CA and K90RL; Among them, the L4EX-RASISE instruction is the magnetization information, and the L4EX-LOWER instruction is the demagnetization information; The generator controller sends the L4EX-RASISE or L4EX-LOWER command to the excitation control system; The excitation controller receives the L4EX-RASISE or L4EX-LOWER instruction from the generator controller, and increases or decreases the excitation by controlling the trigger pulses of the thyristors of the three-phase fully controlled rectifier bridge in the excitation control system.

9. A computer device comprising a memory and a processor, wherein the memory stores a computer program, wherein: When the processor executes the computer program, the steps of the voltage following method based on the automatic voltage control system of the gas generator set according to any one of claims 4 to 8 are implemented.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the voltage following method based on the automatic voltage control system of the gas generator set as described in any one of claims 4 to 8 are implemented.

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