Power generation circuit of electric yacht

Abstract

The utility model relates to the field of electric yachts, in particular to a power generation circuit of an electric yacht, which comprises a photoresistor circuit, a VCU control circuit, a power output circuit, a power storage circuit and a photovoltaic power generation circuit, the photoresistor circuit is used for detecting the sun illumination intensity; the VCU control circuit is connected with the photoresistor circuit, the power storage circuit, the battery circuit and the photovoltaic power generation circuit, and is used for receiving the solar illumination intensity of the photoresistor circuit and turning on or turning off the photovoltaic power generation circuit according to the solar illumination intensity; and detecting the battery electric quantity of the electricity storage circuit, and starting a discharging mode of the electricity storage circuit when the stored electric quantity reaches a preset threshold value. The circuit provided by the utility model not only can reduce the household energy storage cost, but also can provide power support for an island service area.

Description

Technical Field

[0001] This application relates to the field of electric yachts, and in particular to a power generation circuit for an electric yacht. Background Technology

[0002] With the development of technology and the increasing awareness of environmental protection, smart energy for households is gradually becoming a trend. Rooftops, villas, sunrooms, and terraces are being effectively utilized to set up residential photovoltaic (PV) power stations, providing clean energy for families. These PV power stations typically have PV chargers with a power output of around 10kW and are connected to the public grid via 220 / 380V. This setup not only meets the daily electricity needs of households but also allows excess electricity to be sold back to the national grid, achieving energy reuse and economic benefits. Currently, residential energy storage solutions suitable for villas and similar settings are relatively mature. In this solution, PV power is prioritized for household loads. After meeting household electricity needs, surplus power is used to charge batteries. When the batteries are fully charged, any excess power is fed back into the grid. This solution has multiple operating modes, such as general mode, standby mode, and economic mode. In general mode, PV power is prioritized for the loads, surplus power charges the batteries, and any remaining excess power is fed back into the grid. In standby mode, the energy storage battery's power is only used in the event of a grid outage, i.e., during a power outage, to supply power only to household appliances. In economic mode, users can set charging and discharging times, such as charging the battery at night and discharging it during the day, to achieve off-peak electricity consumption and save on electricity bills.

[0003] However, current home energy storage solutions, with their core components including lithium batteries and energy storage inverters, are relatively expensive. For families owning electric yachts, these yachts typically come equipped with batteries and bidirectional OBCs (On-Board Chargers). These batteries and OBCs could offer a new approach to home energy storage solutions, utilizing the yacht's batteries and OBCs to reduce costs. Furthermore, this solution can also provide power to isolated service areas when the yacht is in use, further expanding its application scenarios.

[0004] In summary, while existing home energy storage solutions have achieved certain results in terms of technology and application, high costs remain a significant issue. For households with electric yachts, how to utilize the yacht's batteries and bidirectional OBCs to reduce home energy storage costs is a pressing problem that needs to be addressed. Utility Model Content

[0005] This application provides a power generation circuit for an electric yacht that can not only reduce the cost of home energy storage, but also provide power support for isolated island service areas.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] This utility model provides a power generation circuit for an electric yacht, comprising:

[0008] This includes photoresistor circuits, VCU control circuits, power output circuits, energy storage circuits, and photovoltaic power generation circuits.

[0009] The photoresistor circuit is used to detect the intensity of sunlight.

[0010] The photovoltaic power generation circuit is connected to the battery circuit and is used to convert sunlight into current and output it to the battery circuit.

[0011] The energy storage circuit is connected to the power output circuit and the photovoltaic power generation circuit, and is used to receive the current from the photovoltaic power generation circuit, and to discharge to the power output circuit when the discharge mode is turned on.

[0012] The VCU control circuit is connected to the photoresistor circuit, the energy storage circuit, the battery circuit, and the photovoltaic power generation circuit. It is used to receive the solar irradiance from the photoresistor circuit and turn the photovoltaic power generation circuit on or off according to the solar irradiance. It also detects the battery charge of the energy storage circuit and turns on the discharge mode of the energy storage circuit when the stored charge reaches a preset threshold.

[0013] In a preferred embodiment of this application, the photovoltaic power generation circuit may be further configured such that the photovoltaic power generation circuit includes a PV photovoltaic panel and a photovoltaic charger, wherein the output terminal of the PV photovoltaic panel is connected to the input terminal of the photovoltaic charger, for converting sunlight into current and inputting it into the photovoltaic charger.

[0014] In a preferred embodiment of this application, the energy storage circuit may be further configured such that the battery and the OBC are connected, the output of the battery is connected to the input of the OBC, and the photovoltaic charger is connected to the input of the battery.

[0015] In a preferred embodiment of this application, the VCU control circuit is further configured such that, when the photovoltaic power generation circuit is turned on, the output voltage of the photovoltaic charger is set to be equal to the voltage of the battery, and the relay switch of the battery is turned on.

[0016] In a preferred embodiment of this application, it may be further configured to include a bidirectional OBC for converting the DC power in the energy storage circuit into AC power and outputting it to the power output circuit.

[0017] In a preferred embodiment of this application, the preset threshold can be further set to 50% of the total battery capacity.

[0018] In a preferred embodiment of this application, the VCU control circuit may be further configured to turn off the discharge mode of the energy storage circuit when it detects that the stored energy of the battery is less than or equal to 50%.

[0019] In a preferred embodiment of this application, the energy storage circuit and the power output circuit may be further configured such that they are connected via an AC line.

[0020] In a preferred embodiment of this application, the VCU control circuit may further include a wireless communication module, which is used to connect the energy storage circuit, the battery circuit, and the photovoltaic power generation circuit wirelessly.

[0021] In a preferred embodiment of this application, the preset threshold can be further set to 70% of the total battery capacity.

[0022] In summary, compared with the prior art, the beneficial effects of the technical solution provided in this application include at least the following:

[0023] 1. By utilizing the electric yacht's built-in high-capacity battery and bidirectional OBC (On-Board Circuit), a circuit is constructed to supply power to home energy storage devices. This eliminates the need for households to purchase additional, high-cost lithium batteries for energy storage, and also avoids altering existing home wiring. This not only reduces initial investment but also significantly lowers the overall cost of the home smart energy system.

[0024] 2. During the day with ample sunlight, the photovoltaic charger can charge the yacht's battery. Simultaneously, when the battery reaches a preset threshold, the OBC (On-Board Charger) activates discharge mode, converting electrical energy into AC power for grid connection or household use. This allows households to not only reduce electricity bills while maintaining self-sufficiency but also generate additional income by selling electricity to the grid. Through the intelligent VCU (Vehicle Control Unit), the circuit can discharge stored battery energy at night or when sunlight is insufficient, achieving "peak shaving and off-peak" power utilization and further improving energy efficiency.

[0025] 3. When the yacht is in an isolated service area, this circuit can provide power support to the isolated service area. Attached Figure Description

[0026] Figure 1 This is a block diagram of a power generation circuit for an electric yacht, provided as an embodiment of this application.

[0027] Figure 2 A circuit data flow diagram of a power generation circuit for an electric yacht provided in one embodiment of this application. Detailed Implementation

[0028] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0029] In one embodiment of this application, a power generation circuit for an electric yacht is provided; please refer to [link / reference]. Figure 1 As shown, it includes a photoresistor circuit 100, a VCU control circuit 200, a photovoltaic power generation circuit 300, an energy storage circuit 400, and a power output circuit 500.

[0030] The photoresistor circuit is used to detect the intensity of sunlight.

[0031] The photovoltaic power generation circuit is connected to the battery circuit and is used to convert sunlight into current and output it to the battery circuit.

[0032] The energy storage circuit is connected to the power output circuit and the photovoltaic power generation circuit, and is used to receive the current from the photovoltaic power generation circuit, and to discharge to the power output circuit when the discharge mode is turned on.

[0033] The VCU control circuit is connected to the photoresistor circuit, the energy storage circuit, the battery circuit, and the photovoltaic power generation circuit. It is used to receive the solar irradiance from the photoresistor circuit and turn the photovoltaic power generation circuit on or off according to the solar irradiance. It also detects the battery charge of the energy storage circuit and turns on the discharge mode of the energy storage circuit when the stored charge reaches a preset threshold.

[0034] In practical implementation, the VCU control circuit includes a VCU (Vehicle Control Unit), which is the control center of the electric yacht. It is responsible for directing the operation of the yacht's electric motors and controlling the coordinated operation of various electronic devices on the yacht, ensuring optimal performance in areas such as driving, braking, power management, network security, fault detection, and troubleshooting. The power output circuit can be connected to a home power grid or other circuits with energy storage devices.

[0035] Furthermore, the photovoltaic power generation circuit includes a PV photovoltaic panel and a photovoltaic charger. The output end of the PV photovoltaic panel is connected to the input end of the photovoltaic charger, which is used to convert sunlight into current and input it into the photovoltaic charger.

[0036] Furthermore, the energy storage circuit includes a battery and an OBC, with the output terminal of the battery connected to the input terminal of the OBC, and the photovoltaic charger connected to the input terminal of the battery.

[0037] The OBC is a bidirectional OBC (On-Board Charger), which is a vehicle charger with bidirectional charging and discharging functions.

[0038] Furthermore, the VCU control circuit is connected to the photovoltaic charger. When the photovoltaic power generation circuit is turned on, the output voltage of the photovoltaic charger is set to be equal to the voltage of the battery, and the relay switch of the battery is turned on.

[0039] Connection methods for OBC, batteries, photovoltaic chargers, and PV photovoltaic panels, as follows: Figure 2 As shown, where, as Figure 2 As shown, the battery and the OBC are components of the electric yacht's energy storage circuit. The OBC outputs power to the power grid through a power output circuit. A photoresistor circuit inputs the sunlight intensity into the VCU, which is connected to the OBC, battery, photovoltaic charger, and PV photovoltaic panel, sending signals to the respective circuits connected to it.

[0040] The operation of the circuit can be specifically described as follows:

[0041] During the day, the battery is in charging and discharging mode. The charging power of the photovoltaic charger is greater than the discharging power of the OBC, and the excess power is used to charge the battery, so the battery capacity will gradually increase and be fully charged before sunset.

[0042] After sunset, the battery enters a pure discharge mode. Because the electric yacht's battery has a large capacity, it can discharge all night until sunrise the next day. The battery consumes no more than 50% of its capacity overnight.

[0043] The above charging and discharging method enables the OBC to operate 24 hours a day. If the next day is cloudy, it can automatically stop discharging when it reaches 50%.

[0044] In this embodiment, the beneficial effects include at least:

[0045] 1. By utilizing the electric yacht's built-in high-capacity battery and bidirectional OBC (On-Board Circuit), a circuit is constructed to supply power to home energy storage devices. This eliminates the need for households to purchase additional, high-cost lithium batteries for energy storage, and also avoids altering existing home wiring. This not only reduces initial investment but also significantly lowers the overall cost of the home smart energy system.

[0046] 2. During the day with ample sunlight, the photovoltaic charger can charge the yacht's battery. Simultaneously, when the battery reaches a preset threshold, the OBC (On-Board Charger) activates discharge mode, converting electrical energy into AC power for grid connection or household use. This allows households to not only reduce electricity bills while maintaining self-sufficiency but also generate additional income by selling electricity to the grid. Through the intelligent VCU (Vehicle Control Unit), the circuit can discharge stored battery energy at night or when sunlight is insufficient, achieving "peak shaving and off-peak" power utilization and further improving energy efficiency.

[0047] 3. When the yacht is in an isolated service area, this circuit can provide power support to the isolated service area.

[0048] In some embodiments, the VCU control circuit further includes a wireless communication module, which is used to connect the energy storage circuit, the battery circuit, and the photovoltaic power generation circuit wirelessly.

[0049] In this embodiment, the flexibility of connecting the VCU control circuit with other circuits is improved, the use of wires is reduced, and it is more environmentally friendly and energy-saving.

[0050] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as the combination of these technical features does not contradict each other, it should be considered within the scope of this specification. The above embodiments only illustrate several implementation methods of this application, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be noted that for those skilled in the art, several modifications and improvements can be made without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A power generation circuit for an electric yacht, characterized in that, This includes photoresistor circuits, VCU control circuits, power output circuits, energy storage circuits, and photovoltaic power generation circuits. The photoresistor circuit is used to detect the intensity of sunlight. The photovoltaic power generation circuit is connected to the battery circuit and is used to convert sunlight into current and output it to the battery circuit. The energy storage circuit is connected to the power output circuit and the photovoltaic power generation circuit, and is used to receive the current from the photovoltaic power generation circuit, and to discharge to the power output circuit when the discharge mode is turned on. The VCU control circuit is connected to the photoresistor circuit, the energy storage circuit, the battery circuit, and the photovoltaic power generation circuit. It is used to receive the solar irradiance from the photoresistor circuit and turn the photovoltaic power generation circuit on or off according to the solar irradiance. It also detects the battery charge of the energy storage circuit and turns on the discharge mode of the energy storage circuit when the stored charge reaches a preset threshold.

2. The power generation circuit of the electric yacht according to claim 1, characterized in that, The photovoltaic power generation circuit includes a PV photovoltaic panel and a photovoltaic charger. The output end of the PV photovoltaic panel is connected to the input end of the photovoltaic charger, which is used to convert sunlight into current and input it into the photovoltaic charger.

3. The power generation circuit of the electric yacht according to claim 2, characterized in that, The energy storage circuit includes a battery and an OBC (On-Board Charger). The output terminal of the battery is connected to the input terminal of the OBC, and the photovoltaic charger is connected to the input terminal of the battery.

4. The power generation circuit of the electric yacht according to claim 3, characterized in that, The VCU control circuit is connected to the photovoltaic charger. When the photovoltaic power generation circuit is turned on, the output voltage of the photovoltaic charger is set to be equal to the voltage of the battery, and the relay switch of the battery is turned on.

5. The power generation circuit of the electric yacht according to claim 4, characterized in that, It also includes a bidirectional OBC, used to convert the DC power in the energy storage circuit into AC power and output it to the power output circuit.

6. The power generation circuit of the electric yacht according to claim 1, characterized in that, The preset threshold is 50% of the total battery capacity.

7. The power generation circuit of the electric yacht according to claim 3, characterized in that, The VCU control circuit is also used to turn off the discharge mode of the energy storage circuit when it detects that the stored energy of the battery is less than or equal to 50%.

8. The power generation circuit of the electric yacht according to claim 5, characterized in that, The energy storage circuit and the power output circuit are connected via an AC line.

9. The power generation circuit of the electric yacht according to claim 1, characterized in that, The VCU control circuit also includes a wireless communication module, which is used to connect the energy storage circuit, the battery circuit, and the photovoltaic power generation circuit wirelessly.

10. The power generation circuit of the electric yacht according to claim 1, characterized in that, The preset threshold is 70% of the total battery capacity.

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