Energy storage equipment and power system multi-period frequency modulation cooperative control system

Abstract

The invention provides energy storage equipment and a multi-period frequency modulation cooperative control system of a power system. According to the energy storage equipment, a cushioning assembly is installed at the bottom of an energy storage frame, a plurality of partition plates are installed at the bottom of the inner wall of the energy storage frame, two sets of supporting strips are fixedly connected between every two partition plates, an energy storage block is arranged between every two partition plates, and an electrifying head is arranged at the top of each energy storage block. According to the energy storage equipment and the multi-period frequency modulation cooperative control system of the power system provided by the invention, through the design, current generated by different power generation modes can be converted into current and voltage with unified specifications through the frequency modulation cooperative control system to be stored in the energy storage equipment, so that the operation stability of the energy storage equipment can be improved; and the cooling liquid which can circulate and is not conductive is matched to wrap the energy storage block, so that heat dissipation of the energy storage block is assisted, high temperature generated during operation of the energy storage block can be reduced, and the operation risk of the energy storage equipment is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of energy storage equipment in power systems, and in particular to an energy storage device and a multi-period frequency modulation coordinated control system for a power system. Background Art

[0002] The power system is a unified whole composed of power generation, power supply, power consumption facilities and the secondary facilities required to ensure their normal operation, such as regulation and control, relay protection and safety automatic devices, metering devices, dispatching automation, power communications, etc. The power system is an electric energy production and consumption system composed of power plants, transmission and transformation lines, power supply and distribution stations and power consumption.

[0003] Energy storage devices occupy an important position in the power system. They can store the electricity generated by the power system and transmit the required current at different time ends through the cooperation of the energy management system according to demand.

[0004] Since the voltage or current of electricity generated by different power generation methods are somewhat different, directly transmitting the electricity to the energy storage device is likely to cause instability of the energy storage device, and the energy storage device will generate higher temperatures when working, which will increase the risk of operation of the energy storage device.

[0005] Therefore, it is necessary to provide an energy storage device and a multi-period frequency regulation coordinated control system for the power system to solve the above technical problems. Summary of the invention

[0006] The present invention provides an energy storage device and a multi-period frequency modulation coordinated control system for an electric power system, which solves the problem that if the amount of electricity and current generated by different power generation methods have certain differences and are directly transmitted to the energy storage device for storage, the operation of the energy storage device will be unstable and the temperature of the energy storage device will be high during operation, which will increase the operation risk.

[0007] In order to solve the above technical problems, the energy storage device provided by the present invention includes: an energy storage frame;

[0008] A shock absorbing component, wherein the shock absorbing component is installed at the bottom of the energy storage frame, a plurality of partitions are installed at the bottom of the inner wall of the energy storage frame, two groups of support bars are fixedly connected between each of the partitions, an energy storage block is arranged between each of the partitions, a power supply head is arranged at the top of the energy storage block, a docking head is arranged at the top of the power supply head, a sealing cover is arranged at the top of the energy storage frame, a sealing plug is fixedly connected to the bottom of the sealing cover, a connecting base is installed at the top of the sealing cover, and a monitoring device is arranged at the top of the connecting base;

[0009] A plurality of injection pipes, wherein the plurality of injection pipes are installed on the front of the energy storage frame near the top, a first mounting pipe is installed on the other end of the plurality of injection pipes, a plurality of connecting pipes are installed on the front of the energy storage frame near the bottom, a second mounting pipe is installed on the other end of the plurality of connecting pipes, a conveying assembly is fixedly connected to the front of the energy storage frame, a straw is installed at the inlet of the conveying assembly, a conveying pipe is installed at the outlet of the conveying assembly, a frequency modulation coordinated control system is installed on the back of the energy storage frame, an output device and an input device are respectively installed on the back of the energy storage frame, and connectors are provided on the backs of the output device and the input device;

[0010] The front and back sides of the partition are fixedly connected to the front and back sides of the inner wall of the energy storage frame respectively. The partition is made of flame-retardant and heat-insulating material. The other end of the joint is connected to the frequency-modulation coordinated control system. The import and export of the frequency-modulation coordinated control system are connected to the input device and the output device respectively through lines. The connecting pipe and the injection pipe are located between every two partitions. The frequency-modulation coordinated control system can convert electricity with different currents and voltages emitted by different power generation equipment into rated current and voltage.

[0011] Preferably, a mounting frame is installed at the front of the energy storage frame near the top and the bottom, and the delivery assembly includes a shell and a delivery pump;

[0012] The two installation frames are respectively located above and below the conveying component, and the two installation frames correspond to the positions of the conveying pipe and the suction pipe respectively.

[0013] Preferably, air inlets are provided on both sides of the installation frame, and a heat dissipation fan is installed inside the installation frame;

[0014] The cooling fan draws air into the air inlet.

[0015] Preferably, a mounting base is installed on the front of the energy storage frame, and a control switch is installed on the front of the mounting base.

[0016] Preferably, a fixed base is installed on the top of the sealing cover, and an operation screen is provided on the top of the fixed base;

[0017] The operation screen can set the parameters of the frequency modulation coordinated control system and control the operation of the equipment on the energy storage frame.

[0018] Preferably, the shock absorbing assembly comprises a bottom plate, and shock absorbing springs are installed at the top of the bottom plate at four corners through mounting plates, and the top ends of the shock absorbing springs are fixedly connected with fixing plates;

[0019] The top of the fixing plate is connected to the bottom of the energy storage frame, and the shock absorbing spring can play a shock absorbing role.

[0020] Preferably, a support plate is installed at the middle position of the top of the bottom plate, and a buffer plate is arranged at the top of the support plate;

[0021] The buffer disc is made of rubber material and can cooperate with the shock-absorbing spring to achieve a shock-absorbing effect.

[0022] A multi-period frequency regulation coordinated control system for an electric power system, the electric power system comprising a current input module and a current output module, the output end of the current input module is connected to the input end of a monitoring module, the output end of the monitoring module is connected to the input end of the current output module, the monitoring module is bidirectionally connected to an energy management system, the output end of the monitoring module is connected to the input end of an early warning module, the energy management system is bidirectionally connected to a control module, the control module is bidirectionally connected to a frequency regulation system, and the frequency regulation system is bidirectionally connected to an energy storage device;

[0023] Research on charging and discharging characteristics of hybrid supercapacitors, lithium battery energy storage systems and flywheel energy storage systems is carried out to clarify the advantageous discharge ranges and adaptive time scales of the three energy storage methods. Combined with the characteristics of the frequency regulation instructions of Jiangling Power Plant, hybrid energy storage modes at different time scales are constructed, and hybrid energy storage-assisted thermal power frequency regulation coordinated control technology of different scales is studied. Research is carried out on the dynamic synchronization adjustment strategy of intelligent collaborative energy storage frequency regulation units and unit frequency regulation units, to evaluate the unit's energy storage level in real time, predict the unit's output change capability, and comprehensively consider the output and SOC of energy storage equipment.

[0024] Preferably, the energy management system comprises a charge and discharge characteristic monitoring unit, the output end of the charge and discharge characteristic monitoring unit is connected to the input end of the energy storage conversion unit, the output end of the energy storage conversion unit is connected to the input end of the energy control unit, the output end of the energy control unit is connected to the input end of the energy storage integrated power supply, the output end of the energy storage integrated unit is connected to the input end of the multiple frequency modulation coordinated control unit, and the output end of the frequency modulation coordinated control unit is connected to the input end of the energy scheduling control unit;

[0025] Research the operation control of the thermal-storage combined power generation system, study the energy dispatch strategies under different modes, verify the applicability and effect of the multi-mode dispatch control strategy based on simulation and actual operation data, optimize and evaluate the adaptive network control strategy, study the load regulation strategy based on the grid-assisted frequency regulation performance algorithm, and the "two detailed rules" performance indicators of the unit's load response characteristics; develop a grid-connected service monitoring and early warning system.

[0026] Preferably, the frequency regulation system includes a charge and discharge complementary unit, the output end of the charge and discharge complementary unit is connected to the input end of the frequency regulation instruction issuing unit, the output end of the frequency regulation instruction issuing unit is connected to the input end of the thermal power frequency regulation coordinated control unit, the output end of the thermal power frequency regulation coordinated control unit is connected to the input end of the early warning module, the output end of the early warning module is connected to the input end of the multi-period frequency regulation coordinated control unit, and the monitoring module includes an energy storage level assessment unit, a unit operation monitoring unit, and a network security unit.

[0027] Compared with the related art, the energy storage device and the power system multi-period frequency modulation coordinated control system provided by the present invention have the following beneficial effects:

[0028] The present invention provides an energy storage device and a multi-period frequency modulation coordinated control system for an electric power system. In order to ensure the stability of the electric power generated by different power generation methods and reduce the risk of the operation of the energy storage device, an energy storage frame is first installed above the shock-absorbing component, and a plurality of flame-retardant and heat-insulating partitions are installed inside the energy storage frame, and energy storage blocks are arranged between every two partitions through support bars. The support bars can allow a certain distance between the energy storage blocks and the partitions, so that the energy storage blocks can be cooled by flowing cooling liquid. After that, the plurality of energy storage blocks are connected through an energizing head, and connected to the frequency modulation coordinated control system through a docking head, and the frequency modulation coordinated control system is respectively connected to an output device and an input device with a connector, so that the energy storage blocks can be The current in the device is transmitted to the corresponding device for use according to the current or voltage of the device, or the current of different voltages or currents can be transmitted to the energy storage block for storage. After that, it is only necessary to inject the cooling liquid between each partition, and through the cooperation of the conveying assembly and the conveying pipeline, the cooling liquid can form a circulation inside the energy storage frame, which can drive the heat generated by the energy storage block during operation. Through this design, the current generated by different power generation methods can be converted into a uniform specification of current and voltage through the frequency modulation coordinated control system and stored in the energy storage device, which can increase the stability of the operation of the energy storage device, and with the circulating and non-conductive cooling liquid to wrap the energy storage block to assist its heat dissipation, it can reduce the high temperature generated by the energy storage block during operation and reduce the risk of operation of the energy storage device. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 A schematic diagram of the structure of a preferred embodiment of the energy storage device and the power system multi-period frequency modulation coordinated control system provided by the present invention;

[0030] Figure 2 A schematic diagram of the structure of the transmission structure frequency modulation coordinated control device provided by the present invention;

[0031] Figure 3 A schematic diagram of an energy storage block is provided for the present invention;

[0032] Figure 4 The present invention provides Figure 1 An enlarged view of point A is shown;

[0033] Figure 5 The present invention provides Figure 2 An enlarged view of point B is shown;

[0034] Figure 6 A schematic diagram of a power system is provided for the present invention;

[0035] Figure 7 A schematic diagram of an energy management system is provided for the present invention;

[0036] Figure 8 A schematic diagram of a frequency modulation system is provided for the present invention;

[0037] Fig. 9 A schematic diagram of a monitoring module is provided for the present invention.

[0038] Numbers in the figure: 1. shock-absorbing assembly, 101. bottom plate, 102. support plate, 103. buffer plate, 104. fixing plate, 105. shock-absorbing spring, 106. mounting plate, 2. energy storage frame, 3. sealing cover, 4. fixed base, 5. operation screen, 6. monitoring equipment, 7. connecting base, 8. injection pipe, 9. first mounting pipe, 10. mounting base, 11. control switch, 12. delivery pipe, 13. delivery assembly, 14. straw, 15. connecting pipe, 16. second mounting pipe, 17. output device, 18. connector, 19. input device, 20. frequency modulation coordinated control system, 21. docking joint, 22. sealing plug, 23. power-on head, 24. support bar, 25. partition, 26. energy storage block, 27. air inlet, 28. mounting frame, 29. cooling fan. DETAILED DESCRIPTION

[0039] The present invention will be further described below in conjunction with the accompanying drawings and implementation modes.

[0040] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Fig. 9 ,in, Figure 1 A schematic diagram of the structure of a preferred embodiment of the energy storage device and the power system multi-period frequency modulation coordinated control system provided by the present invention; Figure 2 A schematic diagram of the structure of the transmission structure frequency modulation coordinated control device provided by the present invention; Figure 3 A schematic diagram of an energy storage block is provided for the present invention; Figure 4 The present invention provides Figure 1 An enlarged view of point A is shown; Figure 5 The present invention provides Figure 2 An enlarged view of point B is shown; Figure 6 A schematic diagram of a power system is provided for the present invention; Figure 7 A schematic diagram of an energy management system is provided for the present invention; Figure 8 A schematic diagram of a frequency modulation system is provided for the present invention; Fig. 9 A schematic diagram of a monitoring module is provided for the present invention. Energy storage device: comprising: an energy storage frame 2;

[0041] A shock absorbing component 1, wherein the shock absorbing component 1 is installed at the bottom of an energy storage frame 2, a plurality of partitions 25 are installed at the bottom of the inner wall of the energy storage frame 2, two groups of support bars 24 are fixedly connected between each of the partitions 25, an energy storage block 26 is arranged between each of the partitions 25, a power supply head 23 is arranged at the top of the energy storage block 26, a docking head 21 is arranged at the top of the power supply head 23, a sealing cover 3 is arranged at the top of the energy storage frame 2, a sealing plug 22 is fixedly connected to the bottom of the sealing cover 3, a connecting base 7 is installed at the top of the sealing cover 3, and a monitoring device 6 is arranged at the top of the connecting base 7;

[0042] A plurality of injection pipes 8, wherein the plurality of injection pipes 8 are installed on the front of the energy storage frame 2 near the top, a first mounting pipe 9 is installed on the other end of the plurality of injection pipes 8, a plurality of connecting pipes 15 are installed on the front of the energy storage frame 2 near the bottom, a second mounting pipe 16 is installed on the other end of the plurality of connecting pipes 15, a conveying assembly 13 is fixedly connected to the front of the energy storage frame 2, a straw 14 is installed at the inlet of the conveying assembly 13, a conveying pipe 2 is installed at the outlet of the conveying assembly 13, a frequency modulation coordinated control system 20 is installed on the back of the energy storage frame 2, an output device 17 and an input device 19 are respectively installed on the back of the energy storage frame 2, and a connector 18 is provided on the back of each of the output device 17 and the input device 19;

[0043] The front and back sides of the partition 25 are fixedly connected to the front and back sides of the inner wall of the energy storage frame 2 respectively. The partition 25 is made of flame-retardant and heat-insulating material. The other end of the joint 21 is connected to the frequency modulation coordinated control system 20. The import and export of the frequency modulation coordinated control system 20 are connected to the input device 19 and the output device 17 respectively through the line. The connecting pipe 15 and the injection pipe 8 are located between every two partitions 25. The frequency modulation coordinated control system 20 can convert electricity with different currents and voltages emitted by different power generation equipment into rated current and voltage, and transmit it to the energy storage block 26 for storage. The energy storage frame 2 is also made of flame-retardant material. The monitoring device 6 can monitor the temperature of the energy storage block 26 in the energy storage frame 2 in real time.

[0044] The front of the energy storage frame 2 is provided with mounting frames 28 near the top and bottom, and the delivery assembly 13 includes a housing and a delivery pump;

[0045] The two installation frames 28 are respectively located above and below the conveying assembly 13 , and the two installation frames 28 correspond to the positions of the conveying pipe 12 and the suction pipe 14 , respectively.

[0046] Air inlets 27 are provided on both sides of the installation frame 28, and cooling fans 29 are installed inside the installation frame 28;

[0047] The cooling fan 29 draws air into the air inlet 27 , and the discharged airflow can assist the liquid flowing inside the delivery pipe 12 and the suction pipe 14 in dissipating heat.

[0048] A mounting base 10 is installed on the front of the energy storage frame 2, and a control switch 11 is installed on the front of the mounting base 10;

[0049] The control switch 11 can manually control the operation of the conveying component 13.

[0050] A fixed base 4 is installed on the top of the sealing cover 3, and an operation screen 5 is arranged on the top of the fixed base 4;

[0051] The operation screen 5 can set the parameters of the frequency modulation coordinated control system 20 and can control the operation of the equipment on the energy storage frame 2.

[0052] The shock absorbing assembly 1 comprises a bottom plate 101, and shock absorbing springs 105 are installed at the top of the bottom plate 101 at four corners through mounting plates 106, and the tops of the shock absorbing springs 105 are fixedly connected with fixing plates 104;

[0053] The top of the fixing plate 104 is connected to the bottom of the energy storage frame 2 , and the shock absorbing spring 105 can play a shock absorbing role to reduce the impact of vibration on the equipment on the energy storage frame 2 .

[0054] A support plate 102 is installed at the middle position of the top of the bottom plate 101, and a buffer plate 103 is arranged at the top of the support plate 102;

[0055] The buffer plate 103 is made of rubber material and can cooperate with the buffer spring 105 to achieve a buffering effect.

[0056] A multi-period frequency regulation coordinated control system for an electric power system, the electric power system comprising a current input module and a current output module, the output end of the current input module is connected to the input end of a monitoring module, the output end of the monitoring module is connected to the input end of the current output module, the monitoring module is bidirectionally connected to an energy management system, the output end of the monitoring module is connected to the input end of an early warning module, the energy management system is bidirectionally connected to a control module, the control module is bidirectionally connected to a frequency regulation system, and the frequency regulation system is bidirectionally connected to an energy storage device;

[0057] Research on charging and discharging characteristics of hybrid supercapacitors, lithium battery energy storage systems and flywheel energy storage systems is carried out to clarify the advantageous discharge ranges and the time scales to which they are adapted. Combined with the frequency regulation command characteristics of Jiangling Power Plant, hybrid energy storage modes at different time scales are constructed, and hybrid energy storage-assisted thermal power frequency regulation coordinated control technology of different scales is studied. Research is carried out on the dynamic synchronization adjustment strategy of intelligent coordinated energy storage frequency regulation units and unit frequency regulation units, real-time evaluation of the unit's energy storage level, prediction of the unit's output change capability, comprehensive energy storage equipment output and SOC, and intelligent allocation of AGC commands. The power system includes a frequency regulation coordinated control system 20, output devices 17 and input devices 19.

[0058] The energy management system comprises a charge-discharge characteristic monitoring unit, the output end of the charge-discharge characteristic monitoring unit is connected to the input end of the energy storage conversion unit, the output end of the energy storage conversion unit is connected to the input end of the energy control unit, the output end of the energy control unit is connected to the input end of the energy storage integrated power supply, the output end of the energy storage integrated unit is connected to the input end of the multiple frequency modulation coordinated control unit, and the output end of the frequency modulation coordinated control unit is connected to the input end of the energy scheduling control unit;

[0059] Research the operation control of the combined thermal and energy storage power generation system, study the energy dispatch strategies under different modes, verify the applicability and effect of the multi-mode dispatch control strategy based on simulation and actual operation data, optimize and evaluate the adaptive network control strategy, and study the load regulation strategy based on the grid auxiliary frequency regulation performance algorithm and the "two detailed rules" performance indicators of the load response characteristics of the unit; develop a grid-connected service monitoring and early warning system to realize the accurate calculation of the K value and mileage of the regulation process, monitor the auxiliary frequency regulation benefits in real time, and guide the adjustment and optimization of the frequency regulation strategy.

[0060] The frequency modulation system includes a charge and discharge complementary unit, the output end of the charge and discharge complementary unit is connected to the input end of the frequency modulation instruction issuing unit, the output end of the frequency modulation instruction issuing unit is connected to the input end of the thermal power frequency modulation coordinated control unit, the output end of the thermal power frequency modulation coordinated control unit is connected to the input end of the early warning module, the output end of the early warning module is connected to the input end of the multi-period frequency modulation coordinated control unit, and the monitoring module includes an energy storage level assessment unit, a unit operation monitoring unit, and a network security unit.

[0061] The working principle of the energy storage device and the multi-period frequency modulation coordinated control system of the power system provided by the present invention is as follows:

[0062] First, the energy storage frame 2 is installed above the shock absorbing component 1, and a plurality of flame retardant and heat insulating partitions 25 are installed inside the energy storage frame 2, and energy storage blocks 26 are arranged between every two partitions 25 through support bars 24. The support bars 24 can allow a certain distance between the energy storage blocks 26 and the partitions 25, so that the energy storage blocks 26 can be cooled by the flowing cooling liquid. Then, the plurality of energy storage blocks 26 are connected together through the power-on head 23, and connected to the frequency modulation coordinated control system 20 by the docking head 21. The frequency modulation coordinated control system 20 is respectively connected to the output device 17 and the input device 19 with the connector 18. The current in the energy storage block 26 can be transmitted to the corresponding device for use according to the current or voltage of the device, and the current of different voltages or currents can be transmitted to the energy storage block 26 for storage. Then, it is only necessary to inject the cooling liquid into each partition 25. The cooling liquid is circulated in the energy storage frame 2 through the conveying component 13 and the conveying pipeline, which can drive the heat generated by the energy storage block 26 during operation. In actual use, the current generated by the power generation equipment enters the frequency modulation coordinated control system 20 through the input device 19, and is controlled to a set current and voltage by the frequency modulation coordinated control system 20, and then is conveyed to the energy storage block 26 for storage. In this process, the heat generated by the energy storage block 26 will exchange heat with the cooling liquid. At the same time, the conveying component 13 starts to suck the cooling liquid at the terminal of the energy storage frame 2 out of the energy storage frame 2 through the suction pipe 14, the connecting pipe 15 and the second installation pipe 16, and re-injects it into the interior of the energy storage frame 2 through the conveying pipe 12, the first installation pipe 9 and the multiple injection pipes 8. If the energy storage block 26 is used to power an external device, the output current and voltage can be controlled by the frequency modulation coordinated control system 20.

[0063] Compared with the related art, the energy storage device and the power system multi-period frequency modulation coordinated control system provided by the present invention have the following beneficial effects:

[0064] In order to ensure the stability of the energy storage device and reduce the risk of the operation of the energy storage device so that the electricity generated by different power generation methods can be smoothly transmitted to the energy storage device, the energy storage frame 2 is first installed above the shock absorbing component 1, and a plurality of flame retardant and heat insulating partitions 25 are installed inside the energy storage frame 2, and energy storage blocks 26 are arranged between every two partitions 25 through support bars 24. The support bars 24 can allow a certain distance between the energy storage blocks 26 and the partitions 25, so that the energy storage blocks 26 can be cooled by the flowing cooling liquid. After that, the plurality of energy storage blocks 26 are connected together through the power-on head 23, and are connected to the frequency modulation cooperative control system 20 through the docking head 21. The frequency modulation cooperative control system 20 is respectively connected to the output device 17 and the input device 19 with the connector 18, so that the electricity in the energy storage block 26 can be The current can be delivered to the corresponding device for use according to the current or voltage of the device, or the current of different voltages or currents can be delivered to the energy storage block 26 for storage. After that, it is only necessary to inject the cooling liquid between each partition 25, and the cooling liquid can be circulated in the interior of the energy storage frame 2 through the conveying component 13 and the conveying pipeline, which can drive the heat generated by the energy storage block 26 during operation. Through this design, the current generated by different power generation methods can be converted into a uniform current and voltage through the frequency modulation coordinated control system 20 and stored in the energy storage device, which can increase the stability of the operation of the energy storage device, and the energy storage block 26 can be wrapped with a circulating and non-conductive cooling liquid to assist its heat dissipation, which can reduce the high temperature generated by the energy storage block 26 during operation and reduce the risk of operation of the energy storage device.

[0065] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An energy storage device, characterized in that: include: Energy storage frame; A shock absorbing component, wherein the shock absorbing component is installed at the bottom of the energy storage frame, a plurality of partitions are installed at the bottom of the inner wall of the energy storage frame, two groups of support bars are fixedly connected between each of the partitions, an energy storage block is arranged between each of the partitions, a power supply head is arranged at the top of the energy storage block, a docking head is arranged at the top of the power supply head, a sealing cover is arranged at the top of the energy storage frame, a sealing plug is fixedly connected to the bottom of the sealing cover, a connecting base is installed at the top of the sealing cover, and a monitoring device is arranged at the top of the connecting base; A plurality of injection tubes are installed on the front side of the energy storage frame near the top, a first mounting tube is installed on the other end of the plurality of injection tubes, a plurality of connecting tubes are installed on the front side of the energy storage frame near the bottom, a second mounting tube is installed on the other end of the plurality of connecting tubes, a conveying assembly is fixedly connected to the front side of the energy storage frame, a straw is installed at the inlet of the conveying assembly, a conveying tube is installed at the outlet of the conveying assembly, a frequency modulation coordinated control system is installed on the back side of the energy storage frame, an output device and an input device are respectively installed on the back side of the energy storage frame, and connectors are arranged on the back sides of the output device and the input device.

2. The energy storage device according to claim 1, characterized in that: The front of the energy storage frame is provided with mounting frames near the top and the bottom, and the delivery assembly includes a shell and a delivery pump.

3. The energy storage device according to claim 2, characterized in that: Air inlets are provided on both sides of the installation frame, and heat dissipation fans are installed inside the installation frame.

4. The energy storage device according to claim 1, characterized in that: A mounting base is installed on the front of the energy storage frame, and a control switch is installed on the front of the mounting base.

5. The energy storage device according to claim 1, characterized in that: A fixed base is installed on the top of the sealing cover, and an operation screen is arranged on the top of the fixed base.

6. The energy storage device according to claim 1, characterized in that: The shock absorbing component comprises a bottom plate, and shock absorbing springs are installed at the top of the bottom plate at four corners through mounting plates, and the top ends of the shock absorbing springs are fixedly connected with fixing plates.

7. The energy storage device according to claim 6, characterized in that: A support plate is installed at the middle position of the top of the bottom plate, and a buffer plate is arranged on the top of the support plate.

8. A multi-period frequency regulation coordinated control system for a power system, characterized in that: The invention comprises an electric power system and an energy storage device as claimed in any one of claims 1 to 7, wherein the electric power system comprises a current input module and a current output module, wherein the output end of the current input module is connected to the input end of a monitoring module, the output end of the monitoring module is connected to the input end of the current output module, the monitoring module is bidirectionally connected to an energy management system, the output end of the monitoring module is connected to the input end of an early warning module, the energy management system is bidirectionally connected to a control module, the control module is bidirectionally connected to a frequency modulation system, and the frequency modulation system is bidirectionally connected to the energy storage device.

9. The multi-period frequency regulation coordinated control system of the power system according to claim 8, characterized in that: The energy management system includes a charge and discharge characteristic monitoring unit, the output end of the charge and discharge characteristic monitoring unit is connected to the input end of the energy storage conversion unit, the output end of the energy storage conversion unit is connected to the input end of the energy control unit, the output end of the energy control unit is connected to the input end of the energy storage integrated power supply, the output end of the energy storage integrated unit is connected to the input end of the multiple frequency modulation coordinated control unit, and the output end of the frequency modulation coordinated control unit is connected to the input end of the energy scheduling control unit.

10. The electric power system multi-period frequency regulation coordinated control system according to claim 8, characterized in that: The frequency modulation system includes a charge and discharge complementary unit, the output end of the charge and discharge complementary unit is connected to the input end of the frequency modulation instruction issuing unit, the output end of the frequency modulation instruction issuing unit is connected to the input end of the thermal power frequency modulation coordinated control unit, the output end of the thermal power frequency modulation coordinated control unit is connected to the input end of the early warning module, the output end of the early warning module is connected to the input end of the multi-period frequency modulation coordinated control unit, and the monitoring module includes an energy storage level assessment unit, a unit operation monitoring unit, and a network security unit.

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