Energy storage assembly intelligent switching system

Abstract

The application provides an energy storage component intelligent switching system, and belongs to the field of ship power. The energy storage component intelligent switching system comprises a distribution box, a main generator set, a standby generator and an energy storage component. The energy storage component is connected with the distribution box, so that the distribution box can charge the energy storage component when the main generator set is in a normal working state, and the energy storage component can supply power to the distribution box in time when the main generator set is in a fault state, millisecond-level power switching can be realized, and the normal operation of ship equipment is not affected by power interruption. After the standby generator successfully starts to supply power to the distribution box, the energy storage component can stop supplying power to the distribution box. Therefore, the problem of power interruption caused by long switching time of the standby generator can be solved. Meanwhile, in the case that the standby generator has a fault, the energy storage component can continuously supply power to the distribution box, and the normal operation of ship equipment can be effectively avoided due to switching failure caused by the fault of the standby generator.

Description

Technical Field

[0001] This application relates to the field of marine power technology, and in particular to an intelligent switching system for energy storage components. Background Technology

[0002] Currently, most ships are equipped with three generators: two main generators and one backup generator, to ensure that the backup generator can be put into operation in time to guarantee the ship's power supply in the event of a failure of the main generator.

[0003] However, the existing backup generator switching methods have the following problems: (1) The switching time is long, which may cause the power supply of the intelligent switching system of energy storage components to be interrupted, affecting the normal operation of ship equipment; (2) The backup generator is in standby mode for a long time, lacks daily maintenance and inspection, and is prone to failure, which may result in it being unable to start normally when needed. Utility Model Content

[0004] The main objective of this application is to propose an intelligent switching system for energy storage components. The system is designed to set up energy storage components and connect them to the distribution box, so that when the main generator set is in a fault state, the energy storage components can supply power to the distribution box. This can achieve millisecond-level power switching and avoid power outages that could affect the normal operation of ship equipment.

[0005] To achieve the above objectives, a first aspect of this application provides an intelligent switching system for energy storage components, comprising: a distribution box, a main generator set, a standby generator, and energy storage components;

[0006] The main generator set is connected to the distribution box to supply power to the distribution box;

[0007] The distribution box is used to connect to the ship's load and to distribute power to the ship's load as needed.

[0008] The backup generator is connected to the distribution box, and the backup generator can supply power to the distribution box;

[0009] The energy storage component is connected to the distribution box so that the energy storage component can supply power to the distribution box, or the distribution box can charge the energy storage component.

[0010] In one embodiment of this application, the system further includes an intelligent switching controller, and the main generator set, the backup generator and the energy storage component are all connected to the intelligent switching controller.

[0011] In one embodiment of this application, the system further includes a first switch, one end of which is connected to the energy storage component, and the other end of which is connected to the distribution box. The first switch is also connected to the intelligent switching controller.

[0012] When the backup generator is in a shutdown state, the first switch is in a conducting state, so that the energy storage component is connected to the distribution box;

[0013] When the backup generator is in the powered-on state, the first switch is in the open state to disconnect the connection between the energy storage component and the distribution box.

[0014] In one embodiment of this application, the energy storage component includes an energy storage device and a controllable reversible converter. The energy storage device is connected to the distribution box through the controllable reversible converter, and the controllable reversible converter is connected to the intelligent switching controller.

[0015] When the main generator set is in normal working condition, the distribution box can charge the energy storage device through the controllable reversible converter;

[0016] When the main generator is in a fault state, the energy storage device can supply power to the distribution box through the controllable reversible converter.

[0017] In one embodiment of this application, the energy storage component further includes a rectifier, one end of which is connected to the distribution box, and the other end of which is connected to the controllable reversible converter.

[0018] In one embodiment of this application, the energy storage device is any one of a lithium-ion battery pack, a storage battery pack, and a supercapacitor.

[0019] In one embodiment of this application, the controllable reversible converter includes a bidirectional inverter.

[0020] In one embodiment of this application, the system further includes a second switch, one end of which is connected to the backup generator, and the other end of which is connected to the distribution box. The second switch is also connected to the intelligent switching controller.

[0021] When the main generator set is in normal operating condition, the second switch is in the open state to disconnect the connection between the standby generator and the distribution box;

[0022] When the main generator set is in a fault state, the second switch is in the conducting state, so that the standby generator and the distribution box are connected.

[0023] In one embodiment of this application, the system further includes a third switch, one end of which is connected to the main generator set, and the other end of which is connected to the distribution box. The third switch is also connected to the intelligent switching controller.

[0024] When the main generator set is in normal working condition, the third switch is in the conducting state, so that the main generator set supplies power to the distribution box;

[0025] When the main generator set is in a fault state, the third switch is in the open state to disconnect the connection between the main generator set and the distribution box.

[0026] In one embodiment of this application, the main generator set includes a first main generator and a second main generator. The first main generator and the second main generator are connected in parallel and then connected together to the distribution box to supply power to the distribution box.

[0027] In the technical solution provided in this application embodiment, the intelligent switching system for energy storage components includes a distribution box, a main generator set, a standby generator, and energy storage components. The distribution box connects to the ship's loads for on-demand power distribution. The energy storage components are connected to the distribution box, allowing the distribution box to charge the energy storage components when the main generator set is operating normally, and the energy storage components to promptly supply power to the distribution box when the main generator set fails, achieving millisecond-level power switching and preventing power outages that could affect the normal operation of ship equipment. After the standby generator successfully starts and supplies power to the distribution box (i.e., in the on-state), the energy storage components can stop supplying power to the distribution box. This solves the problem of power outages caused by long standby generator switching times. Furthermore, in the event of a standby generator failure, the energy storage components can continuously supply power to the distribution box, effectively preventing switching failures due to standby generator failure from affecting the normal operation of ship equipment. This significantly improves the safety of ship operation.

[0028] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0029] Figure 1 This is a first schematic diagram of an intelligent switching system for energy storage components provided in an embodiment of this application.

[0030] Figure 2 This is a second schematic diagram of an intelligent switching system for energy storage components provided in an embodiment of this application.

[0031] Figure 3 This is a third schematic diagram of an intelligent switching system for energy storage components provided in an embodiment of this application.

[0032] Figure 4 This is a fourth schematic diagram of an intelligent switching system for energy storage components provided in an embodiment of this application.

[0033] Figure 5 This is a fifth schematic diagram of an intelligent switching system for energy storage components provided in an embodiment of this application.

[0034] Figure 6 This is a sixth schematic diagram of an intelligent switching system for energy storage components provided in an embodiment of this application.

[0035] Figure 7 This is the seventh schematic diagram of an intelligent switching system for energy storage components provided in an embodiment of this application.

[0036] Figure label:

[0037] 110. Distribution box; 120. Main generator set; 130. Standby generator; 140. Energy storage component; 150. Intelligent switching controller; 160. First switch; 141. Energy storage device; 142. Controllable reversible converter; 170. Second switch; 180. Third switch; 191. Fourth switch; 192. Fifth switch; 121. First main generator; 122. Second main generator. Detailed Implementation

[0038] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0039] It should be noted that although functional modules are divided in the device schematic diagram and a logical order is shown in the flowchart, in some cases, the steps shown or described may be performed in a different order than the module division in the device or the order in the flowchart. The terms "first," "second," etc., in the specification, claims, and the aforementioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0040] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing embodiments of this application only and is not intended to limit this application.

[0041] Intelligent switching systems for energy storage components are crucial for the normal operation of ships. As the core equipment of these systems, the reliability of generators directly impacts the safe operation of the vessel. Currently, most ships are equipped with three generators: two main generators and one backup generator. This ensures that in the event of a main generator failure, the backup generator can be promptly activated to guarantee the ship's power supply.

[0042] However, the existing backup generator switching methods have the following problems: (1) The switching time is long, which may cause the power supply of the intelligent switching system of energy storage components to be interrupted, affecting the normal operation of ship equipment; (2) The backup generator is in standby mode for a long time, lacks daily maintenance and inspection, and is prone to failure, which may result in it being unable to start normally when needed.

[0043] Based on this, this application proposes an intelligent switching system for energy storage components. The system is designed to set up energy storage components and connect them to the distribution box, so that when the main generator set is in a fault state, the energy storage components can supply power to the distribution box, achieving millisecond-level power switching and avoiding power outages that could affect the normal operation of ship equipment.

[0044] Example 1

[0045] Reference Figure 1 , Figure 1This is a first schematic diagram of an intelligent switching system for energy storage components provided in an embodiment of this application. The intelligent switching system includes a distribution box 110, a main generator set 120, a standby generator 130, and an energy storage component 140. The main generator set 120 is connected to the distribution box 110 to supply power to it. The distribution box 110 is used to connect to the ship's load 200 and to distribute power to the load 200 on demand. For example, the distribution box 110 can divide the ship's load 200 into critical loads (such as propulsion devices and navigation equipment) and non-critical loads (such as living quarters air conditioning). By setting priority circuit breakers, power supply to non-critical loads is automatically cut off when power is scarce, ensuring power supply to critical loads and ensuring the safety of ship operation. The energy storage component 140 is connected to the distribution box 110, so that when the main generator set 120 is in normal operating condition, the distribution box 110 can charge the energy storage component 140; when the main generator 120 is in a faulty state, the energy storage component 140 can promptly supply power to the distribution box 110. This system enables millisecond-level power switching, preventing power outages that could disrupt the normal operation of ship equipment. The backup generator 130 is connected to the distribution box 110, so that when the main generator set 120 fails, the energy storage component 140 can supply power to the distribution box 110 while the backup generator 130 simultaneously powers the distribution box 110. After the backup generator 130 powers the distribution box 110, the energy storage component 140 can stop supplying power. Considering the relatively long switching time from the backup generator 130 to the distribution box 110, this embodiment, by setting up the energy storage component 140, allows the distribution box 110 to be powered first when the main generator set 120 fails, achieving millisecond-level power switching and preventing power outages that could disrupt the normal operation of ship equipment. Considering the limited power stored in the energy storage component 140, while switching to the energy storage component 140 to promptly power the distribution box 110, the backup generator 130 can also be started to power the distribution box 110. This solves the problem of power interruption caused by the long switching time of the backup generator 130. Furthermore, in the event of a fault in the backup generator 130, the energy storage component 140 can continuously power the distribution box 110 and troubleshoot and repair the main generator set 120. Once the main generator set 120 is restored, power supply to the distribution box 110 can be switched back to the main generator set 120. This effectively avoids situations where switching failures due to a faulty backup generator 130 affect the normal operation of ship equipment, thus significantly improving the safety of ship operation.

[0046] It should be noted that when the main generator set 120 is in normal working condition, the standby generator 130 is in a shutdown state.

[0047] In this embodiment, by connecting the energy storage component 140 to the distribution box 110, the energy storage component 140 can supply power to the distribution box 110 when the main generator set 120 is in a fault state, which can achieve millisecond-level power switching and avoid power outages due to the long switching time of the backup generator 130.

[0048] Example 2

[0049] Reference Figure 2 , Figure 2 This is a second schematic diagram of an intelligent switching system for energy storage components provided in an embodiment of this application. The intelligent switching system includes a distribution box 110, a main generator set 120, a standby generator 130, an energy storage component 140, and an intelligent switching controller 150. The main generator set 120 is connected to the distribution box 110 to supply power to it. The distribution box 110 is used to connect to the ship load 200 for on-demand power distribution to the ship load 200. The energy storage component 140 is connected to the distribution box 110 so that when the main generator set 120 is in a faulty state, the energy storage component 140 can supply power to the distribution box 110, achieving millisecond-level power switching. When the main generator set 120 is in normal operating condition, the distribution box 110 can charge the energy storage component 140 to store excess electrical energy. The standby generator 130 is connected to the distribution box 110. When the main generator set 120 fails, the standby generator 130 can be started to supply power to the distribution box 110. The main generator set 120, the standby generator 130, and the energy storage component 140 are all connected to the intelligent switching controller 150. The intelligent switching controller 150 can control the switching between the standby generator 130 and the energy storage component 140. Specifically, when the main generator set 120 fails, the intelligent switching controller 150 can control the energy storage component 140 to supply power to the distribution box 110 and control the standby generator 130 to start supplying power to the distribution box 110. For example, when the main generator set 120 fails, the intelligent switching controller 150 can send a first signal (such as a high or low level) to the energy storage component 140 to supply power to the distribution box 110. Simultaneously, the intelligent switching controller 150 can also send a second signal (such as a high level or a low level) to the standby generator 130 to start the standby generator 130, enabling the standby generator 130 to supply power to the distribution box 110. After the standby generator 130 starts and supplies power to the distribution box 110, the intelligent switching controller 150 can send a third signal (such as a low level or a high level) to the energy storage component 140 to stop the energy storage component 140 from supplying power to the distribution box 110.

[0050] In some embodiments, the intelligent switching controller 150 can be used to monitor the operating status of the main generator set 120, the status of the energy storage component 140, and the ship load 200, and control the switching between the standby generator 130 and the energy storage component 140 according to the operating status of the main generator set 120. For example, when the main generator set 120 is in normal operating condition, the intelligent switching controller 150 can send an electrical signal to the energy storage component 140 so that the distribution box 110 can charge the energy storage component 140. When the main generator set 120 experiences a fault, the intelligent switching controller 150 can send an electrical signal to the energy storage component 140 so that the energy storage component 140 can supply power to the distribution box 110. Simultaneously, the intelligent switching controller 150 can also send an electrical signal to the standby generator 130 to start the standby generator 130 to supply power to the distribution box 110. After the standby generator 130 starts and supplies power to the distribution box 110, the intelligent switching controller 150 can send an electrical signal to the energy storage component 140 so that the energy storage component 140 stops supplying power to the distribution box 110.

[0051] In this embodiment, by electrically connecting the intelligent switching controller 150 to the main generator set 120, the standby generator 130, and the energy storage component 140, the intelligent switching controller 150 can automatically switch between the standby generator 130 and the energy storage component 140, thus achieving automated power switching. Specifically, the intelligent switching controller 150 can automatically switch the power supply from the standby generator 130 and the energy storage component 140 to the distribution box 110, achieving millisecond-level power switching and preventing power outages in the energy storage component's intelligent switching system.

[0052] Example 3

[0053] Reference Figure 3 , Figure 3This is a third schematic diagram of an intelligent switching system for energy storage components provided in an embodiment of this application. The intelligent switching system includes a distribution box 110, a main generator set 120, a standby generator 130, an energy storage component 140, an intelligent switching controller 150, and a first switch 160. One end of the first switch 160 is connected to the energy storage component 140, and the other end is connected to the distribution box 110. The first switch 160 is also connected to the intelligent switching controller 150. The main generator set 120 is connected to the distribution box 110 to supply power to it. The distribution box 110 is used to connect to the ship load 200 for on-demand power distribution to the ship load 200. The energy storage component 140 is connected to the distribution box 110 via the first switch 160, so that when the main generator set 120 is in a faulty state, the intelligent switching controller 150 can control the first switch 160 to turn on, enabling the energy storage component 140 to supply power to the distribution box 110, achieving millisecond-level power switching. When the main generator set 120 is in normal operating condition, the intelligent switching controller 150 can control the first switch 160 to be in a conducting state, so that the energy storage component 140 can be charged by the distribution box 110 to store excess electrical energy. The standby generator 130 is connected to the distribution box 110, and can be started when the main generator set 120 is in a fault state, so that the standby generator 130 can supply power to the distribution box 110. The main generator set 120, the standby generator 130, and the energy storage component 140 are all connected to the intelligent switching controller 150. The intelligent switching controller 150 can control the switching between the standby generator 130 and the energy storage component 140. For example, when the main generator set 120 is in a fault state, the intelligent switching controller 150 can send a first signal (such as a high level or a low level) to the energy storage component 140 and control the first switch 160 to be in a conducting state, so that the energy storage component 140 supplies power to the distribution box 110. Simultaneously, the intelligent switching controller 150 can also send a second signal (such as a high level or a low level) to the backup generator 130 to start the backup generator 130, enabling the backup generator 130 to supply power to the distribution box 110. After the backup generator 130 starts and supplies power to the distribution box 110, the intelligent switching controller 150 can send a third signal (such as a low level or a high level) to the energy storage component 140 and control the first switch 160 to open, so that the energy storage component 140 stops supplying power to the distribution box 110.

[0054] In this embodiment, when the standby generator is in a shutdown state, i.e., when the main generator set 120 is in a normal operating state, the intelligent switching controller 150 controls the first switch 160 to be in a conducting state, so that the energy storage component 140 can supply power to the distribution box 110, or the distribution box 110 can charge the energy storage component 140. After the standby generator 130 starts and supplies power to the distribution box 110, the intelligent switching controller 150 controls the first switch 160 to be in a disconnected state, so as to disconnect the connection between the energy storage component 140 and the distribution box 110, thereby stopping the energy storage component 140 from supplying power to the distribution box 110. Thus, by controlling the opening and closing of the first switch 160 through the intelligent switching controller 150, the energy storage component 140 can supply power to the distribution box 110 when the main generator set 120 is in a fault state, achieving millisecond-level power switching and avoiding power interruption due to the long switching time of the standby generator 130.

[0055] Example 4

[0056] Reference Figure 4 , Figure 4This is a fourth schematic diagram of an intelligent switching system for energy storage components provided in an embodiment of this application. The intelligent switching system includes a distribution box 110, a main generator set 120, a standby generator 130, an energy storage component 140, an intelligent switching controller 150, and a first switch 160. The energy storage component 140 includes an energy storage device 141 and a controllable reversible converter 142. The energy storage device 141 is connected to the distribution box 110 via the controllable reversible converter 142, which is connected to the intelligent switching controller 150. The controllable reversible converter 140 is a device based on fully controllable power electronic devices (such as thyristors and IGBTs), possessing bidirectional DC-AC power conversion capability and supporting active control of energy flow. Specifically, the controllable reversible converter 140 can achieve both rectification (AC→DC) and inversion (DC→AC), thus realizing bidirectional energy transmission. One end of the first switch 160 is connected to the energy storage component 140, and the other end is connected to the distribution box 110. The first switch 160 is also connected to the intelligent switching controller 150. The main generator set 120 is connected to the distribution box 110 to supply power to it. The distribution box 110 is used to connect to the ship load 200 for on-demand power distribution. The energy storage component 140 is connected to the distribution box 110 via the first switch 160, so that when the main generator set 120 is in a faulty state, the intelligent switching controller 150 can control the first switch 160 to conduct and control the controllable reversible converter 142 to convert the DC power stored in the energy storage device 141 into AC power, enabling the energy storage device 141 to supply power to the distribution box 110, achieving millisecond-level power switching. When the main generator set 120 is in normal operating condition, the intelligent switching controller 150 can control the first switch 160 to be in the conducting state and control the controllable reversible converter 142 to convert the AC power output from the distribution box 110 into DC power, so that the distribution box 110 can charge the energy storage device 141 to store excess energy. The standby generator 130 is connected to the distribution box 110 and can be started when the main generator set 120 is in a faulty state, so that the standby generator 130 can supply power to the distribution box 110. The main generator set 120, the standby generator 130, and the energy storage component 140 are all connected to the intelligent switching controller 150. The intelligent switching controller 150 can control the switching between the standby generator 130 and the energy storage component 140. For example, when the main generator set 120 is in a faulty state, the intelligent switching controller 150 can send a first signal (such as a high level or a low level) to the energy storage component 140 and control the first switch 160 to be in a conducting state, so that the energy storage component 140 supplies power to the distribution box 110. At the same time, the intelligent switching controller 150 can also send a second signal (such as a high level or a low level) to the standby generator 130 to start the standby generator 130, so that the standby generator 130 can supply power to the distribution box 110.After the standby generator 130 starts and supplies power to the distribution box 110, the intelligent switching controller 150 can send a third signal (such as a low level or a high level) to the energy storage component 140 and control the first switch 160 to open, so that the energy storage component 140 stops supplying power to the distribution box 110.

[0057] In some embodiments, the energy storage device 141 includes any one of a lithium-ion battery pack, a storage battery pack, and a supercapacitor. The lithium-ion battery pack has high energy density (200-300Wh / kg) and long cycle life (≥5000 cycles), supporting rapid charge and discharge. The lead-carbon battery in the storage battery pack has a cycle life of over 3000 cycles and a cost 30%-50% lower than lithium batteries, making it suitable for low-power, long-cycle energy storage scenarios. The supercapacitor has a power density as high as 10kW / kg and a charge / discharge efficiency ≥95%, but a lower energy density (5-10Wh / kg), making it suitable for short-term high-power compensation. In this application embodiment, the appropriate energy storage device 141 can be selected for energy storage based on different needs.

[0058] In some embodiments, the controllable reversible converter 142 includes a bidirectional inverter. A bidirectional inverter is a power electronic device with bidirectional energy conversion capabilities. It can convert DC power to AC power and vice versa, and is typically composed of multiple power semiconductor devices (such as thyristors, transistors, IGBTs, etc.). Specifically, the bidirectional inverter can convert the AC power transmitted from the distribution box 110 to DC power, enabling the distribution box 110 to charge the energy storage device 141. The bidirectional inverter can also convert the DC power output from the energy storage device 141 back to AC power, allowing the energy storage device 141 to supply power to the distribution box 110.

[0059] In some embodiments, the energy storage component 140 further includes a rectifier, one end of which is connected to the distribution box 110, and the other end of which is connected to a controllable reversible converter 142. When the energy storage component 140 supplies power to the distribution box 110, the rectifier and the controllable reversible converter 142 cooperate to achieve reverse regulation of the DC power, assisting in converting the DC power released by the energy storage device 141 into AC power to be fed back to the distribution box 110.

[0060] Example 5

[0061] Reference Figure 5 , Figure 5This is a fifth schematic diagram of an intelligent switching system for energy storage components provided in an embodiment of this application. The intelligent switching system includes a distribution box 110, a main generator set 120, a standby generator 130, an energy storage component 140, an intelligent switching controller 150, a first switch 160, and a second switch 170. The distribution box 110 is used to connect to the ship load 200 for on-demand power distribution to the ship load 200. The main generator set 120, the standby generator 130, and the energy storage component 140 are all connected to the distribution box 110, and are also connected to the intelligent switching controller 150. One end of the first switch 160 is connected to the energy storage component 140, and the other end is connected to the distribution box 110. The first switch 160 is also connected to the intelligent switching controller 150. One end of the second switch 170 is connected to the standby generator 130, and the other end of the second switch 170 is connected to the distribution box 110. The second switch 170 is also connected to the intelligent switching controller 150.

[0062] When the main generator set 120 is in a faulty state, the intelligent switching controller 150 can send a first signal (such as a high level or a low level) to the energy storage component 140 and control the first switch 160 to be in a conducting state, so that the energy storage component 140 supplies power to the distribution box 110. Simultaneously, the intelligent switching controller 150 can also send a second signal (such as a high level or a low level) to the standby generator 130 to start the standby generator 130 and control the second switch 170 to be in a conducting state, so that the standby generator 130 can supply power to the distribution box 110. After the standby generator 130 starts and supplies power to the distribution box 110, the intelligent switching controller 150 can send a third signal (such as a low level or a high level) to the energy storage component 140 and control the first switch 160 to be opened, so that the energy storage component 140 stops supplying power to the distribution box 110. After the main generator set 120 returns to normal, the intelligent switching controller 150 can control the second switch 170 to disconnect the connection between the standby generator 130 and the distribution box 110, and at the same time, control the standby generator 130 to stop.

[0063] Example 6

[0064] Reference Figure 6 , Figure 6This is a sixth schematic diagram of an intelligent switching system for energy storage components provided in an embodiment of this application. The intelligent switching system includes a distribution box 110, a main generator set 120, a standby generator 130, an energy storage component 140, an intelligent switching controller 150, a first switch 160, a second switch 170, and a third switch 180. The distribution box 110 is used to connect to the ship load 200 for on-demand power distribution to the ship load 200. The main generator set 120, the standby generator 130, and the energy storage component 140 are all connected to the distribution box 110, and are also connected to the intelligent switching controller 150. One end of the first switch 160 is connected to the energy storage component 140, and the other end of the first switch 160 is connected to the distribution box 110. The first switch 160 is also connected to the intelligent switching controller 150. One end of the second switch 170 is connected to the standby generator 130, and the other end of the second switch 170 is connected to the distribution box 110. The second switch 170 is also connected to the intelligent switching controller 150. One end of the third switch 180 is connected to the main generator set 120, and the other end of the third switch 180 is connected to the distribution box 110. The third switch 180 is also connected to the intelligent switching controller 150.

[0065] When the main generator set 120 is in normal operating condition, the intelligent switching controller 150 controls the third switch 180 to be in a conducting state, so that the main generator set 120 supplies power to the distribution box 110. When the main generator set 120 is in a fault state, the intelligent switching controller 150 controls the third switch 180 to be in a disconnected state, so as to disconnect the connection between the main generator set 120 and the distribution box 110. The intelligent switching controller 150 can also send a first signal (such as a high level or a low level) to the energy storage component 140 and control the first switch 160 to be in a conducting state, so that the energy storage component 140 supplies power to the distribution box 110. At the same time, the intelligent switching controller 150 can also send a second signal (such as a high level or a low level) to the standby generator 130 to start the standby generator 130 and control the second switch 170 to be in a conducting state, so that the standby generator 130 can supply power to the distribution box 110. After the standby generator 130 starts and supplies power to the distribution box 110, the intelligent switching controller 150 can send a third signal (such as a low level or a high level) to the energy storage component 140 and control the first switch 160 to open, so that the energy storage component 140 stops supplying power to the distribution box 110. After the main generator set 120 returns to normal, the intelligent switching controller 150 can control the second switch 170 to open, so as to disconnect the connection between the standby generator 130 and the distribution box 110, and at the same time, control the standby generator 130 to shut down.

[0066] Example 7

[0067] Reference Figure 7 , Figure 7This is a seventh schematic diagram of an intelligent switching system for energy storage components provided in an embodiment of this application. The intelligent switching system includes a distribution box 110, a main generator set 120, a standby generator 130, an energy storage component 140, an intelligent switching controller 150, a first switch 160, a second switch 170, a fourth switch 191, and a fifth switch 192. The distribution box 110 is used to connect to the ship load 200 for on-demand power distribution to the ship load 200. The main generator set 120 includes a first main generator 121 and a second main generator 122, which are connected in parallel to the distribution box 110 to supply power to the distribution box 110. The main generator set 120, the standby generator 130, and the energy storage component 140 are all connected to the distribution box 110, and are also all connected to the intelligent switching controller 150. The intelligent switching controller 150 is connected to the first switch 160 at one end, which is connected to the energy storage component 140. The other end of the first switch 160 is connected to the distribution box 110. The first switch 160 is also connected to the intelligent switching controller 150. The second switch 170 is connected to the standby generator 130 at one end, and the other end of the second switch 170 is connected to the distribution box 110. The second switch 170 is also connected to the intelligent switching controller 150. The fourth switch 191 is connected to the first main generator 121 at one end, and the other end of the fourth switch 191 is connected to the distribution box 110. The fourth switch 191 is also connected to the intelligent switching controller 150. The fifth switch 192 is connected to the second main generator 122 at one end, and the other end of the fifth switch 192 is connected to the distribution box 110. The fifth switch 192 is also connected to the intelligent switching controller 150.

[0068] When the main generator set 120 is in normal operating condition, the intelligent switching controller 150 controls the fourth switch 191 and / or the fifth switch 192 to be in a conducting state to supply power to the distribution box 110. When the main generator set 120 is in a fault state, the intelligent switching controller 150 can send a first signal (such as a high level or a low level) to the energy storage component 140 and control the first switch 160 to be in a conducting state, so that the energy storage component 140 supplies power to the distribution box 110. At the same time, the intelligent switching controller 150 can also send a second signal (such as a high level or a low level) to the standby generator 130 to start the standby generator 130 and control the second switch 170 to be in a conducting state, so that the standby generator 130 can supply power to the distribution box 110. After the standby generator 130 starts and supplies power to the distribution box 110, the intelligent switching controller 150 can send a third signal (such as a low level or a high level) to the energy storage component 140 and control the first switch 160 to open, so that the energy storage component 140 stops supplying power to the distribution box 110. After the main generator set 120 returns to normal, the intelligent switching controller 150 can control the second switch 170 to open, so as to disconnect the connection between the standby generator 130 and the distribution box 110, and at the same time, control the standby generator 130 to shut down.

[0069] In this embodiment, the main generator set 120 employs a first main generator 121 and a second main generator 122 connected in parallel, allowing for flexible start-up and shutdown of a single main generator based on the ship's real-time power demand. For example, operating only one main generator under low load reduces fuel consumption; under high load, the first main generator 121 and the second main generator 122 can operate in parallel, avoiding inefficiency caused by single-unit overload operation. With the two main generators connected in parallel, each main generator can operate stably within 75%-80% of its rated power (optimal energy efficiency range), reducing fuel waste by 15%-20% compared to single-unit low-load operation. When one main generator experiences a sudden failure, the other main generator can automatically take over the entire load, ensuring continuous power supply to critical equipment (such as navigation systems and propulsion motors) and preventing navigational accidents caused by power outages. It should be noted that when the main generator set 120 is in a fault state, it can be due to both the first main generator 121 and the second main generator 122 failing, or it can be due to only one of the first main generator 121 and the second main generator 122 failing. When both the first main generator 121 and the second main generator 122 fail, the intelligent switching controller 150 controls the fourth switch 191 and the fifth switch 192 to open, thereby disconnecting the connection between the first and second main generators 121 and the distribution box 110. The intelligent switching controller 150 can send a first signal (such as a high level or a low level) to the energy storage component 140 and control the first switch 160 to be in a conducting state, so that the energy storage component 140 can supply power to the distribution box 110. At the same time, the intelligent switching controller 150 can also send a second signal (such as a high level or a low level) to the standby generator 130 to start the standby generator 130 and control the second switch 170 to be in a conducting state, so that the standby generator 130 can supply power to the distribution box 110. After the standby generator 130 starts and supplies power to the distribution box 110, the intelligent switching controller 150 can send a third signal (such as a low level or a high level) to the energy storage component 140 and control the first switch 160 to open, so that the energy storage component 140 stops supplying power to the distribution box 110. When the first main generator 121 is in a fault state, the intelligent switching controller 150 controls the fourth switch 191 to open and the fifth switch 192 to close, so as to disconnect the connection between the first main generator 121 and the distribution box 110. The intelligent switching controller 150 can also send a second signal (such as a high level or a low level) to the standby generator 130 to start the standby generator 130 and control the second switch 170 to close, so that the standby generator 130 can supply power to the distribution box 110. When the second main generator 122 is in a fault state, the intelligent switching controller 150 controls the fourth switch 191 to close and the fifth switch 192 to open, so as to disconnect the connection between the second main generator 122 and the distribution box 110.The intelligent switching controller 150 can also send a second signal (such as a high level or a low level) to the standby generator 130 to start the standby generator 130 and control the second switch 170 to be in the conducting state, so that the standby generator 130 can supply power to the distribution box 110.

[0070] The preferred embodiments of the present application have been described above with reference to the accompanying drawings, but this does not limit the scope of the claims of the present application. Any modifications, equivalent substitutions, and improvements made by those skilled in the art without departing from the scope and substance of the embodiments of the present application shall be within the scope of the claims of the present application.

Claims

1. An intelligent switching system for energy storage components, characterized in that, include: Distribution box, main generator set, standby generator and energy storage components; The main generator set is connected to the distribution box to supply power to the distribution box; The distribution box is used to connect to the ship's load and to distribute power to the ship's load as needed. The backup generator is connected to the distribution box, and the backup generator can supply power to the distribution box; The energy storage component is connected to the distribution box so that the energy storage component can supply power to the distribution box, or the distribution box can charge the energy storage component.

2. The system according to claim 1, characterized in that, The system also includes an intelligent switching controller, and the main generator set, the backup generator and the energy storage component are all connected to the intelligent switching controller.

3. The system according to claim 2, characterized in that, The system also includes a first switch, one end of which is connected to the energy storage component, and the other end of which is connected to the distribution box. The first switch is also connected to the intelligent switching controller. When the backup generator is in a shutdown state, the first switch is in a conducting state, so that the energy storage component is connected to the distribution box; When the backup generator is in the powered-on state, the first switch is in the open state to disconnect the connection between the energy storage component and the distribution box.

4. The system according to claim 2 or 3, characterized in that, The energy storage component includes an energy storage device and a controllable reversible converter. The energy storage device is connected to the distribution box through the controllable reversible converter, and the controllable reversible converter is connected to the intelligent switching controller. When the main generator set is in normal working condition, the distribution box can charge the energy storage device through the controllable reversible converter; When the main generator is in a fault state, the energy storage device can supply power to the distribution box through the controllable reversible converter.

5. The system according to claim 4, characterized in that, The energy storage component also includes a rectifier, one end of which is connected to the distribution box, and the other end of which is connected to the controllable reversible converter.

6. The system according to claim 4, characterized in that, The energy storage device is any one of lithium-ion battery packs, storage battery packs, and supercapacitors.

7. The system according to claim 4, characterized in that, The controllable reversible converter includes a bidirectional inverter.

8. The system according to claim 2, characterized in that, The system also includes a second switch, one end of which is connected to the backup generator and the other end of which is connected to the distribution box. The second switch is also connected to the intelligent switching controller. When the main generator set is in normal operating condition, the second switch is in the open state to disconnect the connection between the standby generator and the distribution box; When the main generator set is in a fault state, the second switch is in the ON state, so that the standby generator and the distribution box are connected.

9. The system according to claim 2, characterized in that, The system also includes a third switch, one end of which is connected to the main generator set and the other end of which is connected to the distribution box. The third switch is also connected to the intelligent switching controller. When the main generator set is in normal working condition, the third switch is in the conducting state, so that the main generator set supplies power to the distribution box; When the main generator set is in a fault state, the third switch is in the open state to disconnect the connection between the main generator set and the distribution box.

10. The system according to claim 1, characterized in that, The main generator set includes a first main generator and a second main generator. The first main generator and the second main generator are connected in parallel and then connected to the distribution box to supply power to the distribution box.

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