Inertial energy storage power generation system and operation control method

Abstract

The invention relates to the technical field of generators, and provides an inertial energy storage power generation system and an operation control method.The inertial energy storage power generation system comprises a motor, at least two energy storage assemblies, a generator and a control system, the motor, the energy storage assemblies and the generator are coaxially arranged, and the energy storage assemblies are coaxially connected between the motor and the generator; each energy storage assembly comprises a hydraulic coupler and a flywheel, the hydraulic couplers and the flywheels of the energy storage assemblies are sequentially distributed in the axial direction from the motor to the generator, and the hydraulic couplers in the energy storage assemblies are in driving connection with the flywheels so as to drive the flywheels to rotate. The motor and the hydraulic coupler in each energy storage assembly are electrically connected with the control system. According to the inertial energy storage power generation system, energy is slowly stored through flywheels one by one so as to reduce the driving power of the motor, and the energy stored by the flywheels in the energy storage assemblies is high, so that the high-energy-storage power generation system is achieved, that is, the low-power motor drives the high-energy-storage power generation system.

Description

Technical Field

[0001] The present disclosure relates to the technical field of generators, and in particular to an inertial energy storage power generation system and an operation control method. Background Art

[0002] Large experimental devices such as magnetic confinement fusion experimental devices and strong magnetic field experimental devices require high-power pulse power supply, which needs to provide several hundred megajoules of pulse electrical energy within 3s to 10s.

[0003] In the related art, the inertial energy storage pulse generator system includes a traction motor, a flywheel and a generator. The connection between the traction motor, the flywheel and the generator is a rigid connection. Since the starting torque of the inertial energy storage pulse generator system is large, the configured motor is basically an adjustable speed motor such as a slip-start, frequency conversion, and cascade-start motor. A high-power traction motor is required to start the energy storage pulse power generation system, which requires a high grid capacity configuration and limits the energy storage scale of the energy storage pulse generator in the inertial energy storage pulse generator system. Summary of the invention

[0004] In order to solve the above technical problems or at least partially solve the above technical problems, the present disclosure provides an inertial energy storage power generation system and an operation control method.

[0005] The present disclosure provides an inertial energy storage power generation system, comprising:

[0006] Electric motor;

[0007] A generator, coaxially arranged with the motor;

[0008] An energy storage assembly, wherein at least two energy storage assemblies are provided, and at least two energy storage assemblies are coaxially connected between the motor and the generator, and each energy storage assembly comprises a hydraulic coupler and a flywheel. Along the axial direction from the motor to the generator, the hydraulic coupler and the flywheel of each energy storage assembly are sequentially distributed, and the hydraulic coupler in each energy storage assembly is drivingly connected to the flywheel in the energy storage assembly to drive the flywheel to rotate;

[0009] A control system, the electric motor and the hydraulic coupler in each of the energy storage components are electrically connected to the control system, the one of the two adjacent energy storage components closer to the electric motor is the former energy storage component and the other is the latter energy storage component, and the energy storage mode of the inertial energy storage power generation system is: the control system controls the flywheel in the former energy storage component and the flywheel in the latter energy storage component of at least two of the energy storage components to start and store energy step by step.

[0010] The motor is started at no load until the speed reaches the rated speed V1, and the step-by-step starting and energy storage are as follows: after the control system controls the speed of the flywheel in the former energy storage component of two adjacent energy storage components to reach the rated speed V1, the hydraulic coupler in the latter energy storage component receives the control instruction to drive the flywheel in the latter energy storage component to rotate to store energy until the speeds of the flywheels of all energy storage components reach the rated speed V1.

[0011] Optionally, the at least two energy storage components closest to the motor are the first energy storage components, and the closest to the generator are the last energy storage components. The first energy storage component is rotationally connected to the motor, the last energy storage component is rotationally connected to the generator, and two adjacent energy storage components are rotationally connected.

[0012] Optionally, a first bearing is provided between the motor and the hydraulic coupler in the first energy storage assembly, the first bearing is provided with a first bearing seat, and the first bearing seat is connected to a support frame;

[0013] A second bearing is provided between the flywheel in the final energy storage assembly and the generator, the second bearing is provided with a second bearing seat, and the second bearing seat is connected to the support frame;

[0014] A third bearing is provided between two adjacent energy storage assemblies, the third bearing is provided with a third bearing seat, and the third bearing seat is connected to the support frame.

[0015] Optionally, in the energy storage mode: the rotation speed of the motor is not less than the rotation speed of any of the energy storage components.

[0016] Optionally, the flywheel of the final energy storage assembly is connected to the generator via a coupling.

[0017] Optionally, the energy storage components are provided with two, namely a first energy storage component and a final energy storage component, and the first energy storage component is arranged closer to the motor than the final energy storage component;

[0018] The first energy storage assembly includes a first fluid coupling and a first flywheel, the pump wheel of the first fluid coupling is connected to the motor, and the turbine of the first fluid coupling is connected to the first flywheel;

[0019] The end energy storage assembly includes a second hydraulic coupling and a second flywheel, the turbine of the second hydraulic coupling is connected to the first flywheel via a bearing, and the pump wheel of the second hydraulic coupling is connected to the second flywheel.

[0020] The present application also provides an operation control method of an inertial energy storage power generation system, comprising the following steps:

[0021] S1, the motor starts without load until the motor speed reaches V1, and the V1 speed signal is sent to the control system;

[0022] S2, the one of the two adjacent energy storage assemblies closer to the motor is the former energy storage assembly and the other is the latter energy storage assembly, and the control system controls the flywheel in the former energy storage assembly and the flywheel in the latter energy storage assembly of at least two of the energy storage assemblies to start and store energy step by step;

[0023] S3, when the flywheel in the energy storage assembly closest to the generator among the at least two energy storage assemblies is driven, it can drive the rotor of the generator to increase the speed until the speed of the generator reaches the rotation speed V1.

[0024] Optionally, starting and storing energy step by step are as follows: when the control system receives a V1 speed signal, the speed of the flywheel in the former energy storage component is controlled to reach V1; when the control system receives a second speed signal, the speed of the flywheel in the latter energy storage component is controlled to reach V1, and the second speed signal is that the speed of the flywheel in the former energy storage component reaches V1; only after the speed of the flywheel in the former energy storage component of two adjacent energy storage components reaches V1, the hydraulic coupling in the latter energy storage component receives the control instruction to drive the flywheel in the latter energy storage component to rotate to store energy, until the speeds of all flywheels reach V1.

[0025] Another embodiment of the present application provides a discharge mode of an inertial energy storage power generation system, including: the first energy storage component is closest to the motor among at least two energy storage components, and the last energy storage component is closest to the generator. The control system controls the hydraulic kinetic moment of the hydraulic coupling in the first energy storage component to decrease to a predetermined value, at which time the flexible connection between the motor and the flywheel in the first energy storage component is disconnected.

[0026] Optionally, it also includes an energy release process: the control system controls the generator to generate electricity, the speed of the generator is reduced, the control system controls the hydraulic kinetic energy of the remaining hydraulic coupling to reach a predetermined value, the speed of the flywheel in at least two energy storage components is reduced, and the mechanical energy of the flywheel is converted into electrical energy generated by the generator.

[0027] Compared with the prior art, the technical solution provided by the embodiments of the present disclosure has the following advantages:

[0028] The inertial energy storage power generation system and operation control method provided by the embodiments of the present disclosure, the hydraulic coupling in each energy storage component provides drive for the flywheel in the energy storage component to drive the flywheel to the rated speed to store mechanical energy. At least two energy storage components are provided on the connecting shaft, and when the inertial energy storage power generation system is storing energy, at least two flywheels in at least two energy storage components store energy one by one. The inertial energy storage power generation system slowly stores energy on each flywheel to reduce the driving power of the motor, and the energy stored in multiple flywheels in multiple energy storage components is high to realize a high energy storage power generation system, that is, a low-power motor drives a high energy storage power generation system. At the same time, the low-power motor drive also reduces the capacity requirements and impact on the power grid. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0030] 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, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0031] Figure 1 It is a schematic diagram of the structure of the inertial energy storage power generation system described in an embodiment of the present disclosure.

[0032] Among them, 1. electric motor; 2. control system; 3. first hydraulic coupling; 4. first flywheel; 5. second hydraulic coupling; 6. second flywheel; 7. coupling; 8. generator; 9. energy storage assembly; 101. first bearing seat; 102. second bearing seat; 103. third bearing seat. DETAILED DESCRIPTION

[0033] In order to more clearly understand the above-mentioned objectives, features and advantages of the present disclosure, the scheme of the present disclosure will be further described below. It should be noted that the embodiments of the present disclosure and the features in the embodiments can be combined with each other without conflict.

[0034] In the following description, many specific details are set forth to facilitate a full understanding of the present disclosure, but the present disclosure may also be implemented in other ways different from those described herein; it is obvious that the embodiments in the specification are only part of the embodiments of the present disclosure, rather than all of the embodiments.

[0035] In the related art, the inertial energy storage pulse generator system includes a traction motor, a flywheel and a generator. The connection between the traction motor, the flywheel and the generator is a rigid connection. Since the starting torque of the inertial energy storage pulse generator system is large, the configured motor is basically an adjustable speed motor such as a slip-start, frequency conversion, and cascade-start motor. A high-power traction motor is required to start the energy storage pulse power generation system, which requires a high grid capacity configuration and limits the energy storage scale of the energy storage pulse generator in the inertial energy storage pulse generator system.

[0036] Based on this, Figure 1 As shown, an embodiment of the present disclosure provides an inertial energy storage power generation system, including a motor 1, at least two energy storage components 9, a generator 8 and a control system 2, wherein the motor 1, at least two energy storage components 9 and the generator 8 are coaxially arranged, at least two energy storage components 9 are coaxially connected between the motor 1 and the generator 8, at least two of the energy storage components 9 are distributed along the axial direction of the motor 1, each of the energy storage components 9 includes a hydraulic coupling and a flywheel, and along the axial direction from the motor 1 to the generator 8, the hydraulic coupling and the flywheel of each of the energy storage components 9 are distributed in sequence, and the hydraulic coupling in each of the energy storage components 9 is drivingly connected to the flywheel to drive the flywheel to rotate, and the control system 2 slowly increases the speed of the flywheel by controlling the change of the hydraulic momentum of the hydraulic coupling.

[0037] Along the axial direction from the motor 1 to the generator 8, the hydraulic coupling of at least one of the two energy storage components 9 close to the motor 1 is connected to the motor 1, the flywheel of at least one of the two energy storage components 9 close to the generator 8 is connected to the generator 8, and the flywheel of the former of two adjacent energy storage components 9 is connected to the hydraulic coupling of the latter.

[0038] The motor 1 and the hydraulic coupler in each energy storage assembly 9 are electrically connected to the control system 2. The one of the two adjacent energy storage assemblies 9 closer to the motor 1 is the former energy storage assembly and the other is the latter energy storage assembly. The energy storage mode of the inertial energy storage power generation system is: the control system 2 controls the flywheel in the former energy storage assembly and the flywheel in the latter energy storage assembly of at least two energy storage assemblies 9 to start and store energy step by step.

[0039] The inertial energy storage power generation system slowly stores energy in each flywheel to reduce the driving power of the motor 1. The energy stored in the multiple flywheels in the multiple energy storage components 9 is high to achieve a high energy storage power generation system, that is, a low-power motor 1 drives a high energy storage power generation system. At the same time, the low-power motor 1 driving also reduces the capacity requirements and impact on the power grid.

[0040] In specific implementation, the motor 1 is started at no load until the speed reaches the rated speed V1. After the control system 2 controls the speed of the flywheel in the former energy storage component of two adjacent energy storage components 9 to reach the rated speed V1, the hydraulic coupling in the latter energy storage component receives the control instruction to drive the flywheel in the latter energy storage component to rotate to store energy until the speeds of the flywheels of all energy storage components 9 reach the rated speed V1.

[0041] That is to say, in two adjacent energy storage components 9, when the speed of the flywheel of the former energy storage component driven by the hydraulic coupling of the former energy storage component reaches the rated speed V1, the control system 2 controls the hydraulic coupling of the latter energy storage component to drive the flywheel of the latter energy storage component to start rotating until the speed reaches the rated speed V1. Along the axial direction from the first end to the second end, only when the speed of the flywheel of the former energy storage component of the two adjacent energy storage components 9 reaches the rated speed V1, the control system 2 controls the hydraulic coupling in the latter energy storage component to start driving the flywheel in the latter energy storage component to store energy, until the speed of the flywheels of all energy storage components 9 reaches the rated speed V1, and at least two flywheels in at least two energy storage components 9 store energy one by one.

[0042] In the inertial energy storage power generation system provided by the embodiment of the present disclosure, the hydraulic coupler in each energy storage assembly 9 provides drive for the flywheel in the energy storage assembly 9 to drive the flywheel to reach the rated speed to store mechanical energy. At least two energy storage assemblies 9 are provided on the connecting shaft. When the inertial energy storage power generation system is storing energy, at least two energy storage assemblies 9 store energy one by one in the direction from the first end to the second end. Only after the speed of the flywheel in the former energy storage assembly reaches the rated speed V1, the hydraulic coupler in the latter energy storage assembly starts to drive the flywheel in the latter energy storage assembly, storing energy one by one, until all flywheels of all energy storage assemblies 9 on the connecting shaft reach the rated speed V1.

[0043] Because the various components on the connecting shaft in the inertial energy storage power generation system have working states with different rotation speeds, in some embodiments, the at least two energy storage components 9 that are closest to the motor 1 are the first energy storage components, and the one that is closest to the generator 8 is the last energy storage component. The first energy storage component is rotationally connected to the motor 1, the last energy storage component is rotationally connected to the generator 8, and the two adjacent energy storage components 9 are rotationally connected.

[0044] When implementing it specifically, Figure 1 As shown, a first bearing is provided between the motor 1 and the hydraulic coupler in the first energy storage assembly, and the first bearing is provided with a first bearing seat 101, and the first bearing seat 101 is connected to the support frame. A second bearing is provided between the flywheel and the generator 8 in the final energy storage assembly, and the second bearing is provided with a second bearing seat 102, and the second bearing seat 102 is connected to the support frame. A third bearing is provided between two adjacent energy storage assemblies 9, and the third bearing is provided with a third bearing seat 103, and the third bearing seat 103 is connected to the support frame.

[0045] In some embodiments, in the energy storage mode: the one of two adjacent energy storage components 9 that is closer to the motor 1 is the former energy storage component and the other is the latter energy storage component, the rotation speed of the former energy storage component is not less than the rotation speed of the latter energy storage component, and the rotation speed of the motor 1 is not less than the rotation speed of any energy storage component 9.

[0046] In some embodiments, the flywheel of the last energy storage assembly is connected to the generator 8 via a coupling 7 to increase the connection stability between the flywheel of the last energy storage assembly and the generator 8 .

[0047] In some embodiments, Figure 1 As shown, the energy storage assembly 9 is provided with two, namely the first energy storage assembly and the last energy storage assembly, and the first energy storage assembly is arranged closer to the motor 1 than the last energy storage assembly. The first energy storage assembly includes a first hydraulic coupling 3 and a first flywheel 4, the pump wheel of the first hydraulic coupling 3 is connected to the motor 1, and the turbine of the first hydraulic coupling 3 is connected to the first flywheel 4. The last energy storage assembly includes a second hydraulic coupling 5 and a second flywheel 6, the turbine of the second hydraulic coupling 5 is connected to the first flywheel 4 through a bearing, and the pump wheel of the second hydraulic coupling 5 is connected to the second flywheel 6.

[0048] In some embodiments, the generator 8 is an inertial pulse generator 8. When the inertial energy storage power generation system is discharged and releases energy, the inertial pulse generator 8 provides several hundred megajoules of pulse electrical energy within 3 to 10 seconds.

[0049] The present application also provides an operation control method of an inertial energy storage power generation system, comprising the following steps:

[0050] S1, the motor 1 is started without load until the speed of the motor 1 reaches the rated speed V1, and the V1 speed signal is sent to the control system 2;

[0051] S2, the one of the two adjacent energy storage components 9 closer to the motor 1 is the former energy storage component and the other is the latter energy storage component, and the control system 2 controls the flywheel in the former energy storage component and the flywheel in the latter energy storage component of at least two energy storage components 9 to start and store energy step by step;

[0052] S3, when the flywheel in the energy storage assembly 9 closest to the generator 8 among the at least two energy storage assemblies 9 is driven, it can drive the rotor of the generator 8 to increase the speed until the speed of the generator 8 reaches the rotation speed V1.

[0053] The operation control method of the inertial energy storage power generation system provided in this embodiment controls the start-up of the flywheels in at least two energy storage components 9 one by one, so that the low-power motor 1 drives the high-energy storage power generation system, and the power demand of the motor 1 is low, which reduces the cost and capacity requirements of the motor 1, and also reduces the capacity requirements and impact on the power grid.

[0054] In some embodiments, the step-by-step starting and energy storage are as follows: when the control system 2 receives the V1 speed signal, the speed of the flywheel in the former energy storage component is controlled to reach V1; when the control system 2 receives the second speed signal, the speed of the flywheel in the latter energy storage component is controlled to reach V1, and the second speed signal is that the speed of the flywheel in the former energy storage component reaches V1; only after the speed of the flywheel in the former energy storage component of two adjacent energy storage components 9 reaches V1, the hydraulic coupler in the latter energy storage component receives the control instruction to drive the flywheel in the latter energy storage component to rotate to store energy until the speeds of all flywheels reach V1.

[0055] Another embodiment of the present application also includes a discharge mode of an inertial energy storage power generation system, wherein the at least two energy storage components 9 closest to the motor 1 is the first energy storage component, and the closest to the generator 8 is the last energy storage component, and the discharge mode is:

[0056] The control system 2 controls the hydraulic torque of the hydraulic coupling in the first energy storage component to be reduced to a predetermined value, at which time the flexible connection between the motor 1 and the flywheel in the first energy storage component is disconnected. The hydraulic torque of the hydraulic coupling is reduced to a predetermined value, which means that in the same energy storage component: the hydraulic torque of the hydraulic coupling is reduced to a minimum value, at which time the liquid pressure is about 0.3MPa. At this time, the motor 1 and at least two energy storage components 9 and the generator 8 are two independent rotating systems. Avoid overloading the motor 1 and causing adverse effects such as impact on the power grid.

[0057] In some embodiments, the discharge mode of the inertial energy storage power generation system also includes an energy release process: the control system 2 controls the generator 8 to generate electricity, the speed of the generator 8 is reduced, the control system 2 controls the hydraulic momentum of the remaining hydraulic coupling to reach a minimum value, the speed of the flywheel in at least two energy storage components 9 is reduced, and the mechanical energy of the flywheel is converted into electrical energy generated by the generator 8.

[0058] It should be noted that, in this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0059] The above description is only a specific embodiment of the present disclosure, so that those skilled in the art can understand or implement the present disclosure. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present disclosure. Therefore, the present disclosure will not be limited to the embodiments described herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An inertial energy storage power generation system, characterized in that: include: Electric motor (1); A generator (8) is coaxially arranged with the motor (1); An energy storage assembly (9), wherein at least two energy storage assemblies (9) are provided, and at least two energy storage assemblies (9) are coaxially connected between the motor (1) and the generator (8), and each energy storage assembly (9) comprises a hydraulic coupling and a flywheel. Along the axial direction from the motor (1) to the generator (8), the hydraulic coupling and the flywheel of each energy storage assembly (9) are sequentially distributed, and the hydraulic coupling in each energy storage assembly (9) is drivingly connected to the flywheel in the energy storage assembly (9) to drive the flywheel to rotate; A control system (2), the electric motor (1) and the hydraulic coupler in each of the energy storage components (9) are electrically connected to the control system (2), the one of the two adjacent energy storage components (9) closer to the electric motor (1) is the former energy storage component and the other is the latter energy storage component, and the energy storage mode of the inertial energy storage power generation system is: the control system (2) controls the flywheel in the former energy storage component and the flywheel in the latter energy storage component of at least two of the energy storage components (9) to start and store energy in sequence.

2. The inertial energy storage power generation system according to claim 1, characterized in that: The motor (1) is started at no load until the speed reaches the rated speed V1, and the sequential starting and energy storage are as follows: the control system (2) controls the speed of the flywheel in the former energy storage component of two adjacent energy storage components (9) to reach the rated speed V1, and then the hydraulic coupler in the latter energy storage component receives the control instruction to drive the flywheel in the latter energy storage component to rotate to store energy, until the speeds of the flywheels of all energy storage components (9) reach the rated speed V1.

3. The inertial energy storage power generation system according to claim 1, characterized in that: The at least two energy storage components (9) that is closest to the motor (1) is a first energy storage component, and the one that is closest to the generator (8) is a last energy storage component. The first energy storage component is rotationally connected to the motor (1), the last energy storage component is rotationally connected to the generator (8), and the two adjacent energy storage components (9) are rotationally connected.

4. The inertial energy storage power generation system according to claim 3, characterized in that: A first bearing is provided between the motor (1) and the hydraulic coupler in the first energy storage assembly, the first bearing is provided with a first bearing seat (101), and the first bearing seat (101) is connected to a support frame; A second bearing is provided between the flywheel in the final energy storage assembly and the generator (8), the second bearing is provided with a second bearing seat (102), and the second bearing seat (102) is connected to a support frame; A third bearing is provided between two adjacent energy storage components (9), the third bearing is provided with a third bearing seat (103), and the third bearing seat (103) is connected to the support frame.

5. The inertial energy storage power generation system according to claim 1, characterized in that: In the energy storage mode: the rotation speed of the electric motor (1) is not less than the rotation speed of any of the energy storage components (9).

6. The inertial energy storage power generation system according to claim 3, characterized in that: The flywheel of the final energy storage assembly is connected to the generator (8) via a coupling (7).

7. The inertial energy storage power generation system according to claim 1, characterized in that: The energy storage components (9) are provided with two, namely a first energy storage component and a final energy storage component, wherein the first energy storage component is arranged closer to the motor (1) than the final energy storage component; The first energy storage component comprises a first fluid coupling (3) and a first flywheel (4), the pump wheel of the first fluid coupling (3) is connected to the electric motor (1), and the turbine of the first fluid coupling (3) is connected to the first flywheel (4); The end energy storage component comprises a second hydraulic coupler (5) and a second flywheel (6), the turbine of the second hydraulic coupler (5) being connected to the first flywheel (4) via a bearing, and the pump wheel of the second hydraulic coupler (5) being connected to the second flywheel (6).

8. An operation control method for executing the inertial energy storage power generation system according to claim 1, characterized in that: The following steps are involved: S1, the motor (1) is started without load until the speed of the motor (1) reaches V1, and a speed signal of V1 is sent to the control system (2); S2, of the two adjacent energy storage components (9), the one closer to the motor (1) is the former energy storage component and the other is the latter energy storage component, and the control system (2) controls the flywheel in the former energy storage component and the flywheel in the latter energy storage component of at least two of the energy storage components (9) to start and store energy in sequence; S3, when the flywheel in the energy storage assembly (9) closest to the generator (8) among the at least two energy storage assemblies (9) is driven, it can drive the rotor of the generator (8) to increase the rotation speed until the rotation speed of the generator (8) reaches the rotation speed V1.

9. The operation control method according to claim 8, characterized in that: The step-by-step starting and energy storage are as follows: when the control system (2) receives a V1 speed signal, the speed of the flywheel in the former energy storage component is controlled to reach V1; when the control system (2) receives a second speed signal, the speed of the flywheel in the latter energy storage component is controlled to reach V1, and the second speed signal is that the speed of the flywheel in the former energy storage component reaches V1; only after the speed of the flywheel in the former energy storage component of two adjacent energy storage components (9) reaches V1, the hydraulic coupler in the latter energy storage component receives the control instruction to drive the flywheel in the latter energy storage component to rotate to store energy, until the speeds of all flywheels reach V1.

10. A discharge mode for executing the inertial energy storage power generation system according to claim 1, characterized in that: include: The at least two energy storage components (9) that is closest to the motor (1) is a first energy storage component, and the one that is closest to the generator (8) is a final energy storage component. The control system (2) controls the hydraulic kinetic moment of the hydraulic coupling in the first energy storage component to decrease to a predetermined value, at which time the flexible connection between the motor (1) and the flywheel in the first energy storage component is disconnected.

11. The discharge mode according to claim 10, characterized in that: The invention also includes an energy release process: the control system (2) controls the generator (8) to generate electricity, the rotation speed of the generator (8) is reduced, the control system (2) controls the hydraulic moment of the remaining hydraulic coupling to reach a predetermined value, the rotation speed of the flywheel in at least two energy storage components (9) is reduced, and the mechanical energy of the flywheel is converted into electrical energy generated by the generator (8).

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