Gas power take-off power generation system

Abstract

The invention discloses a fuel gas power take-off power generation system, and relates to the technical field of generators, the fuel gas power take-off power generation system comprises a turbine module, a power take-off machine, a distributed hydraulic module and an output module, the power take-off machine is connected with the turbine module; one end of the distributed hydraulic module is connected with the power take-off machine, and the other end of the distributed hydraulic module is connected with the generator; the generator is connected with the output module, and the output module is used for adjusting voltage parameters and current parameters of the generator. According to the technical scheme, when the turbine module outputs, the power take-off machine is matched with the distributed hydraulic module, the flow of the distributed hydraulic module is adjusted, and the power generation rear end of the power generator is subjected to frequency conversion treatment through the output module, so that the situation that the output rotating speed and power are unstable is avoided, and the power generation efficiency is improved. The stability and reliability of the output power supply are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of generators, and in particular to a gas-fired power generation system. Background Art

[0002] The gas turbine direct drive skid requires more than 300kW of auxiliary power for the entire gas turbine unit and fracturing pump, and the power generation capacity is large. Secondly, the speed range of the gas turbine unit is large when it is working, usually 4000rpm to 8800rpm.

[0003] In the prior art, when the gas turbine direct drive skid is actually working, the output speed and power are always in a changing state, which will inevitably cause the voltage and frequency of the power generation to change, thereby causing the output power to be unstable and unable to be used directly. Summary of the invention

[0004] The main purpose of the present invention is to propose a gas-fired power generation system, which aims to solve the technical problem in the prior art that the output speed and power of the gas turbine direct-drive skid are always in a changing state, resulting in unstable output power and inability to be used directly.

[0005] To achieve the above object, the present invention provides a gas-fired power generation system, the gas-fired power generation system comprising:

[0006] Engine module;

[0007] A power take-off machine, the power take-off machine is connected to the turbine module;

[0008] A distributed hydraulic module, one end of which is connected to the power take-off machine, and the other end of which is connected to the generator;

[0009] An output module, the generator is connected to the output module, and the output module is used to adjust the voltage parameters and current parameters of the generator.

[0010] In one embodiment, the turbine module comprises:

[0011] gas turbine;

[0012] A reducer connected to the gas turbine;

[0013] A gearbox, one end of which is connected to the reducer, and the other end of which is connected to the power take-off machine.

[0014] In one embodiment, the distributed hydraulic module comprises:

[0015] A pump connected to the power take-off machine;

[0016] A plurality of hydraulic motors, wherein the pump is connected in parallel with the plurality of hydraulic motors via pipelines;

[0017] The Heli gearbox has a plurality of input ends, each of the input ends is connected to an output shaft of the hydraulic motor, and the output end of the Heli gearbox is connected to the generator.

[0018] In one embodiment, the distributed hydraulic module further comprises:

[0019] Filling the fuel tank;

[0020] An oil replenishing unit, one end of which is connected to the oil replenishing tank, and the other end of which is respectively connected to the pump and the plurality of hydraulic motors through pipelines;

[0021] The oil replenishment unit is used to detect the oil pressure of the pump and / or the hydraulic motor, and control the opening or closing of the pipeline between the oil replenishment tank and the pump and / or the hydraulic motor according to the oil pressure.

[0022] In one embodiment, the oil replenishing unit comprises:

[0023] A valve body, the valve body is connected to the oil replenishing tank, and the valve body is used to control the connection or disconnection of the pipeline between the oil replenishing tank and the pump and / or the hydraulic motor;

[0024] A first detection unit, the first detection unit is used to detect the oil pressure of the pump and / or the hydraulic motor, and the first detection unit is connected to the valve body signal.

[0025] In one embodiment, the distributed hydraulic module further includes an overflow unit, one end of the overflow unit is connected to the oil replenishing unit, and the other end of the overflow unit is connected to the oil replenishing tank.

[0026] In one embodiment, the distributed hydraulic module further comprises:

[0027] a radiator, the radiator being connected to the oil replenishing tank;

[0028] A filter, one end of which is connected to the radiator, and the other end of which is respectively connected in parallel with the pump and the plurality of hydraulic motors.

[0029] In one embodiment, the output module includes:

[0030] a rectifier, the rectifier being connected to the generator;

[0031] an inverter connected to the rectifier;

[0032] A filter connected to the inverter;

[0033] A power supply unit is connected to the filter.

[0034] In one embodiment, the gas-fired power generation system further includes:

[0035] a second detection unit, the second detection unit being signal-connected to the power supply unit and configured to detect an output parameter of the power supply unit;

[0036] A controller is respectively connected to the rectifier and the inverter by signal, and is used to adjust the output voltage of the rectifier according to the output parameter, and to adjust the output frequency of the inverter according to the output parameter.

[0037] In one embodiment, the controller is connected to the turbine module signal; the controller is also used to adjust the output power of the turbine module according to the output parameter.

[0038] The technical solution of the present invention is that when the turbine module is outputting, the power take-off cooperates with the distributed hydraulic module, adjusts the flow of the distributed hydraulic module, and performs frequency conversion processing on the back-end of the generator through the output module to avoid unstable output speed and power and improve the stability and reliability of the output power supply. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the embodiments of the present invention 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, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0040] Figure 1 A schematic diagram of the piping structure of the gas-fired power generation system provided by the present invention;

[0041] Figure 2 A signal connection diagram of the gas-fired power generation system provided by the present invention.

[0042] Description of Figure Numbers:

[0043] 10. Turbine module; 11. Gas turbine; 12. Reducer; 13. Gearbox; 20. Power take-off; 30. Distributed hydraulic module; 31. Hydraulic motor; 32. Heli gearbox; 40. Output module; 41. Rectifier; 42. Inverter; 43. Filter; 44. Power supply unit; 50. Controller; 60. Generator; 70. Pump; 81. Oil replenishment unit; 82. Overflow unit; 83. Radiator; 84. Filter.

[0044] 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

[0045] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0046] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0047] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0048] The invention provides a gas-fired power generation system.

[0049] See also Figure 1 In one embodiment of the present invention, the gas power generation system includes a turbine module 10, a power take-off machine 20, a distributed hydraulic module 30 and an output module 40, wherein the power take-off machine 20 is connected to the turbine module 10; one end of the distributed hydraulic module 30 is connected to the power take-off machine 20, and the other end is connected to the generator 60; the generator 60 is connected to the output module 40, and the output module 40 is used to adjust the voltage parameters and current parameters of the generator 60.

[0050] As an embodiment, the turbine module 10 includes a gas turbine 11, a reducer 12 and a gearbox 13, wherein the reducer 12 is connected to the gas turbine 11; one end of the gearbox 13 is connected to the reducer 12, and the other end is connected to the power take-off 20. The speed range of the gas turbine 11 in this embodiment is 4000-8800rpm, and the maximum power is 7.2MW.

[0051] The gas turbine 11 is used as a power source, mainly driving the rear-end high-horsepower fracturing pump. On this main engine, power needs to be taken to generate electricity for the auxiliary system, that is, power is generated through the power take-off machine 20 and the output module 40. The effective output speed of the gas turbine 11 is 4200rpm~8300rpm, which needs to pass through the reducer 12 to reduce the speed, and then pass through the high-power gearbox 13 to further adjust the gear and speed, and finally match the power take-off machine 20 from the transmission system to achieve power take-off.

[0052] The reducer 12 adopts a high-speed planetary reducer 12. The high-speed reducer adopts a planetary gear set structure. The planetary gear set includes a planet carrier, a ring gear and a sun gear. When one of them is fixed, the power will be transmitted between the other two components. The input speed is transmitted to the sun gear and output through the inner ring gear, thereby achieving the purpose of deceleration, and the reduction ratio reaches 3:1. The reducer 12 is matched with the output end of the high-speed gas turbine 11, the gearbox 13 adopts a 9-speed high-power gearbox 13, and the power take-off 20 adopts a high-speed power take-off 20 to achieve power take-off. The gearbox 13 is mainly composed of a hydraulic torque converter connected to the reducer 12 and a speed change mechanism immediately following the hydraulic torque converter.

[0053] The generator 60 can generate 300kW to 1000kW of power under the power output of the turbine module 10, thereby meeting the power demand of the entire gas turbine unit. Since the gas turbine 11 has a high speed and a large output power, the reducer 12 can also be equipped with a forced oil injection system for lubrication and heat dissipation.

[0054] The torque converter is composed of a pump wheel, a fixed impeller, a turbine and a lock-up clutch. The lock-up clutch is used to directly connect the gas turbine 11 with the gearbox 13 when the vehicle speed exceeds a certain speed, so as to reduce fuel consumption.

[0055] The hydraulic torque converter can be used to transmit the power output of the gas turbine 11 to the gearbox 13. The hydraulic torque converter is filled with transmission oil. When the pump wheel connected to the power input end rotates, it drives the turbine connected to the output shaft to rotate together through the transmission oil, thereby transmitting the power of the gas turbine 11.

[0056] Each gear position of the gearbox 13 is controlled by a set of clutch plates, thereby realizing the speed change function. The gearbox 13 control computer controls the action of the solenoid valve through electrical signals, thereby changing the direction of the gearbox 13 oil in the valve body oil channel. When the oil pressure acting on the multi-plate clutch plate reaches the braking pressure, the multi-plate clutch plate engages to cause the corresponding planetary gear set to output power.

[0057] The planetary gear set consists of a planet carrier, a ring gear, and a sun gear. When one of the three components mentioned above is fixed, power is transmitted between the other two components.

[0058] A distributed hydraulic module 30 is used, and its flexible transmission system is utilized. Specifically, the distributed hydraulic module 30 includes a pump 70, a plurality of hydraulic motors 31, and a combined gear box 32. The pump 70 is connected to the power take-off machine 20; the pump 70 and the plurality of hydraulic motors 31 are connected in parallel through pipelines; the combined gear box 32 has a plurality of input ends, each of which is connected to an output shaft of a hydraulic motor 31, and the output end of the combined gear box 32 is connected to the generator 60.

[0059] The pump 70 is connected to the hydraulic motor 31 through a pipeline, and the pipeline is filled with hydraulic oil. The pump 70 can be a closed plunger pump, and the power take-off port of the power take-off machine 20 is connected to the pump 70. The power take-off machine 20 drives multiple plunger pumps to operate at the same time, pumping out the hydraulic oil to generate pressure and flow, and then injecting the hydraulic oil into the plunger motor through the confluence valve group, pushing the motor piston to move and then the motor main shaft starts to rotate, and the spline shafts of the synchronous multiple motors cooperate with the combined gear box 32 to jointly drive the generator 60, converting the pressure and flow of the hydraulic system into the torque and speed required by the generator 60, thereby ensuring the normal operation of the generator 60.

[0060] Under the action of the pump 70, the mechanical energy is converted into hydraulic energy, which is then transmitted to the Heli gearbox 32 through the hydraulic motor 31. The Heli gearbox 32 drives the generator 60 to rotate, and the generator 60 can be a permanent magnet synchronous generator 60, which then converts the hydraulic energy into electrical energy to achieve the power generation effect.

[0061] When the generator 60 starts working, the closed plunger pump is in a zero displacement state, and the gas turbine 11 is started at no load, which is conducive to starting and ensuring the service life of the gas turbine 11. When the gas turbine 11 increases its speed, the gas turbine 11 can be fixed at the speed of the optimal power point, and the speed of the generator 60 can be controlled by adjusting the pump displacement alone or adjusting the displacement of the pump 70 and the motor at the same time, so that the gas turbine 11 always operates within the range of the lowest fuel consumption without affecting the power generation quality.

[0062] When fluctuations occur during the operation of the generator 60, or when the main load needs to increase the speed, the speed of the gas turbine 11 can be automatically adjusted according to the closed-loop conditions. The system can also be operated in a stable state by adjusting the pump 70 or adjusting the displacement of the motor.

[0063] When the generator 60 stops generating electricity, the motor displacement is increased first, and then the displacement of the pump 70 is reduced when the motor reaches the maximum displacement, so that the rotation speed of the generator 60 can be slowly reduced, which can greatly increase the service life of the power generation system.

[0064] At the same time, when the gas turbine 11 fails, the reserved safety mechanism can also be used to adjust the motor displacement to the maximum and the pump displacement to 0, which can cut off the transmission chain from the power source to the generator set to protect the safety of the system.

[0065] The generator 60 is connected to the output module 40. Specifically, the output module 40 includes a rectifier 41, an inverter 42, a filter 43 and a power supply unit 44. The rectifier 41 is connected to the generator 60; the inverter 42 is connected to the rectifier 41; the filter 43 is connected to the inverter 42; and the power supply unit 44 is connected to the filter 43.

[0066] Since the rotation speed of the gas turbine 11 fluctuates in the entire transmission system of the gas turbine 11 , the frequency and voltage amplitude of the power output by the generator 60 also fluctuate and cannot be used directly.

[0067] Generator 60 can adopt a permanent magnet synchronous generator. The generated power first passes through a fully controlled rectifier unit, that is, a rectifier 41, to be converted into a direct current with controllable voltage amplitude, and then passes through a fully controlled inverter unit, that is, an inverter 42, so that the power is converted into an alternating current with controllable frequency, and finally passes through a filter 43. Filter 43 adopts an LCL filter to output a smooth AC power supply.

[0068] The power range of the magnetic synchronous generator is 175kW to 200kW, and the speed range is 1800rpm to 2500rpm. The speed range of the power take-off port of the gas turbine 11 is 1200rpm to 2500rpm, and the motor speed of the distributed hydraulic system can be adjusted between 0 and 5000rpm, which can ensure that the speed range finally input to the generator is within a controllable range.

[0069] First, the generator 60 is rectified by the rectifier 41, so that the AC power with variable frequency and amplitude is converted into a certain range of DC power, and then passes through the inverter 42, and outputs AC power with stable frequency and stable amplitude under the action of the inverter 42. Among them, the frequency can be set to 50Hz. Finally, the high-frequency component is filtered out by the filter 43, so as to achieve stable and controllable output current.

[0070] The power supply unit 44 may be a storage battery or the like, and the electric energy is stored in the power supply unit 44 .

[0071] The technical solution of the present invention is that when the turbine module 10 outputs, the power take-off machine 20 cooperates with the distributed hydraulic module 30, adjusts the flow of the distributed hydraulic module 30, and performs frequency conversion processing on the back-end of the generator 60 through the output module 40, so as to avoid unstable output speed and power and improve the stability and reliability of the output power supply.

[0072] In one embodiment, the gas power generation system also includes a second detection unit and a controller 50, wherein the second detection unit is signal-connected to the power supply unit 44 for detecting output parameters of the power supply unit 44; the controller 50 is signal-connected to the distributed hydraulic module 30 for adjusting operating parameters of the distributed hydraulic module 30 according to the output parameters.

[0073] The second detection unit may be a current or voltage sensor connected to the power supply unit 44 to detect its output parameters, which may include information such as current, voltage, and frequency of the power supply unit 44 , and feed it back to the controller 50 .

[0074] The controller 50 may be a PLC controller 50 or a PC, etc., and the controller 50 stores preset values, such as a preset value of voltage, a preset value of current, or a preset value of frequency, etc. After receiving the output parameter, the current, voltage, frequency, etc. in the output parameter are compared with the corresponding preset value.

[0075] By collecting the voltage and frequency of the actual output power supply, when the output voltage fluctuates due to the fluctuation of the rear-end load, the trigger angle of the rectifier 41 can be adjusted first to stabilize the DC bus voltage, and then the inverter 42 can be adjusted to ensure the output frequency. If it exceeds the adjustment range, the flow of the pump 70 and the displacement of the motor are automatically adjusted to make the distributed hydraulic module 40 work within a safe and efficient range, thereby stabilizing the speed. If the requirements are not met, the system will send instructions again to adjust the speed and output power and other parameters of the gas turbine 11, so that the entire system is controllable and stable, and the output voltage is adjustable.

[0076] Specifically, when one or more parameters are greater than or less than a certain level, for example, less than or greater than the first difference, the controller 50 may correspondingly control the operating parameters of the distributed hydraulic module 30. Specifically, the operating parameters may include the flow rate of the pump 70 and / or the displacement of the hydraulic motor 31. By adjusting the flow rate of the pump 70 and the displacement of the hydraulic motor 31, the output power is ensured to be stable and reliable.

[0077] In one embodiment, the controller 50 is also connected to the turbine module 10 by signal; the controller 50 is also used to adjust the output power of the turbine module 10 according to the output parameter.

[0078] When one or more parameters are greater than or less than a large degree, for example, less than or greater than the second difference, wherein the first difference is less than or much less than the second difference, the controller 50 adjusts the output power of the turbine module 10. For example, the speed and output power of the gas turbine 11 are adjusted, or the gear position of the gearbox 13 and other parameters are adjusted, so that the entire system is stable and controllable.

[0079] In one embodiment, see Figure 2 The distributed hydraulic module 30 also includes an oil replenishing tank and an oil replenishing unit 81. One end of the oil replenishing unit 81 is connected to the oil replenishing tank, and the other end is connected to the pump 70 and the multiple hydraulic motors 31 through pipelines; the oil replenishing unit 81 is used to detect the oil pressure of the pump 70 and / or the hydraulic motor 31, and control the pipeline between the oil replenishing tank and the pump 70 and / or the hydraulic motor 31 to be turned on or off according to the oil pressure.

[0080] In order to adjust the flow rate of the pump 70 and the displacement of the hydraulic motor 31, an oil replenishing tank is provided. The oil replenishing tank stores oil and is connected to the pump 70 and the hydraulic motor 31 through pipelines.

[0081] The pipeline between the oil replenishment tank and the pump 70 and the hydraulic motor 31 is controlled by the oil replenishment unit 81. Specifically, the oil replenishment unit 81 includes a valve body and a first detection unit. The valve body is connected to the oil replenishment tank and is used to control the connection or disconnection of the pipeline between the oil replenishment tank and the pump 70 and / or the hydraulic motor 31. The first detection unit is used to detect the oil pressure of the pump 70 and / or the hydraulic motor 31, and the first detection unit is connected to the valve body signal.

[0082] The flow rate of the pump 70 is detected by the first detection unit, which may be a flow sensor. When the flow rate of the pump 70 is low, the valve body may be controlled to open by the controller 50 so that the oil in the oil replenishment tank can enter the pump 70 through the pipeline.

[0083] The valve body may be a solenoid valve, and under the action of the controller 50, the opening of the valve body can be accurately controlled to further improve the control accuracy of the flow rate and improve the stability of the system.

[0084] In addition, in one embodiment, please continue to refer to Figure 2The distributed hydraulic module 30 further includes an overflow unit 82 , one end of which is connected to the oil replenishing unit 81 , and the other end of which is connected to the oil replenishing tank.

[0085] When the flow rate of the pump 70 is too large and the hydraulic pressure in the pipeline is large, the excess oil can flow back to the oil replenishment tank through the overflow unit 82. This achieves accurate adjustment of the flow rate accuracy of the pump 70 and avoids excessive hydraulic pressure in the pipeline, which causes voltage and frequency fluctuations of the power supply unit 44.

[0086] In one embodiment, see Figure 2 The distributed hydraulic module 30 also includes a radiator 83 and a filter 84, the radiator 83 is connected to the oil replenishment tank; one end of the filter 84 is connected to the radiator 83, and the other end is respectively connected in parallel with the pump 70 and the plurality of hydraulic motors 31.

[0087] In order to improve the overall safety of the system, a radiator 83 is also provided on the pipeline between the oil replenishment tank and the pump 70 and the hydraulic motor 31. The radiator 83 is used to cool the oil in the pipeline to prevent safety hazards caused by excessive oil temperature in the pipeline due to heating of multiple devices.

[0088] At the same time, a filter 84 is also provided in the pipeline to filter out impurities in the oil to prevent the impurities from clogging the pipeline. At the same time, it also avoids the potential safety hazard caused by the unstable oil volume in the pipeline caused by impurities in a high temperature environment, thereby further improving the overall safety and stability of the system.

[0089] The above description is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A gas-fired power generation system, characterized in that: The gas-fired power generation system comprises: Engine module (10); A power take-off machine (20), the power take-off machine (20) being connected to the turbine module (10); A distributed hydraulic module (30), one end of the distributed hydraulic module (30) is connected to the power take-off machine (20), and the other end is connected to the generator (60); An output module (40), the generator (60) is connected to the output module (40), and the output module (40) is used to adjust the voltage parameters and current parameters of the generator (60).

2. The gas-fired power generation system according to claim 1, characterized in that: The turbine module (10) comprises: Gas turbine (11); a reducer (12), the reducer (12) being connected to the gas turbine (11); A gearbox (13), one end of the gearbox (13) is connected to the reducer (12), and the other end is connected to the power take-off machine (20).

3. The gas-fired power generation system according to claim 1, characterized in that: The distributed hydraulic module (30) comprises: A pump connected to the power take-off machine (20); A plurality of hydraulic motors (31), wherein the pump and the plurality of hydraulic motors (31) are connected in parallel via pipelines; A combined gear box (32), wherein the combined gear box (32) has a plurality of input ends, each of the input ends is connected to an output shaft of the hydraulic motor (31), and the output end of the combined gear box (32) is connected to the generator (60).

4. The gas-fired power generation system according to claim 3, characterized in that: The distributed hydraulic module (30) further comprises: Filling the fuel tank; An oil replenishing unit, one end of which is connected to the oil replenishing tank, and the other end of which is respectively connected to the pump and the plurality of hydraulic motors (31) through pipelines; The oil replenishment unit is used to detect the oil pressure of the pump and / or the hydraulic motor (31), and to control the opening or closing of the pipeline between the oil replenishment tank and the pump and / or the hydraulic motor (31) according to the oil pressure.

5. The gas-fired power generation system according to claim 4, characterized in that: The oil replenishment unit comprises: a valve body, the valve body being connected to the oil replenishment tank, the valve body being used to control the conduction or disconnection of a pipeline between the oil replenishment tank and the pump and / or the hydraulic motor (31); A first detection unit, the first detection unit is used to detect the oil pressure of the pump and / or the hydraulic motor (31), and the first detection unit is connected to the valve body signal.

6. The gas-fired power generation system according to claim 4, characterized in that: The distributed hydraulic module (30) further comprises an overflow unit, one end of which is connected to the oil replenishment unit, and the other end of which is connected to the oil replenishment tank.

7. The gas-fired power generation system according to claim 4, characterized in that: The distributed hydraulic module (30) further comprises: a radiator, the radiator being connected to the oil replenishing tank; A filter, one end of which is connected to the radiator, and the other end of which is respectively connected in parallel to the pump and the plurality of hydraulic motors (31).

8. The gas-fired power generation system according to claim 1, characterized in that: The output module (40) comprises: a rectifier (41), the rectifier (41) being connected to the generator (60); An inverter (42), the inverter (42) being connected to the rectifier (41); A filter (43), the filter (43) being connected to the inverter (42); A power supply unit (44), the power supply unit (44) is connected to the filter (43).

9. The gas-fired power generation system according to claim 8, characterized in that: The gas-fired power generation system further comprises: a second detection unit, the second detection unit being signal-connected to the power supply unit (44) and used for detecting an output parameter of the power supply unit (44); A controller (50) is connected to the distributed hydraulic module (30) by signal, and is used to adjust the operating parameters of the distributed hydraulic module (30) according to the output parameters.

10. The gas-fired power generation system according to claim 1, characterized in that: The controller (50) is signal-connected to the turbine module (10); the controller (50) is also used to adjust the output power of the turbine module (10) according to the output parameter.

Images