96V direct current propulsion driving system

Abstract

The utility model discloses a 96V direct-current propulsion driving system which comprises a rectifier, a charger, a direct-current propeller, a storage battery and a controller. The charger is connected with the storage battery, the rectifier is connected with the direct-current propeller, and the controller is respectively connected with the charger, the rectifier and the storage battery. The utility model has the advantages of small volume, low voltage and stable system operation. The requirement for electric development of small ships, especially yachts, sightseeing ships and the like, at the present stage is met. An existing diesel power ship can be replaced, carbon emission of an inland river is reduced, and therefore the energy-saving and environment-friendly effects are achieved.

Description

Technical Field

[0001] The utility model relates to a ship system, in particular to a 96V DC propulsion drive system. Background Art

[0002] At present, the concept of green ships has become the development trend of future ships. Especially after the country issued the "dual carbon" goals, the domestic shipbuilding industry has also been committed to the development of green ships, requiring ships to reduce emissions. Therefore, for inland ships, especially small sightseeing boats and tour boats, low emissions are required. However, due to the limited space of such small boats, high-voltage DC networking cannot meet the endurance requirements considering the energy density of the battery. Therefore, more small ships use low-voltage DC propulsion, which can reduce the battery voltage and increase the battery capacity, thereby improving the battery life. The 96V DC propulsion drive system developed by the utility model improves stability when the 96V DC drive is powered by a combination of battery + rectifier, and can significantly improve the endurance of the ship while reducing emissions. Utility Model Content

[0003] The purpose of the utility model is to provide a 96V DC propulsion drive system that can significantly improve the endurance of ships, thereby achieving the purpose of reducing emissions and increasing efficiency.

[0004] The technical solution of the utility model is: a 96V DC propulsion drive system, including a rectifier, a charger, a DC propeller, a battery and a controller; the charger and the rectifier are connected in parallel, the charger is connected to the battery, the rectifier is connected to the DC propeller, and the controller is connected to the charger, the rectifier and the battery respectively.

[0005] Furthermore, the charger and the rectifier are connected to an external AC power source.

[0006] Furthermore, the charger model is KF-CDP and the rectifier model is KF-ZLQ.

[0007] Furthermore, the controller controls the normal operation of the DC thruster, monitors the working condition of the rectifier, and controls the charge and discharge management of the battery.

[0008] Furthermore, the controller model is KF-PCS and the DC thruster model is SB-TYC.

[0009] Furthermore, the charger manages the charging and discharging of the battery through an external AC power supply.

[0010] Furthermore, the battery model is 6-QW.

[0011] Furthermore, the rectifier rectifies the external AC power into 96V DC power.

[0012] Furthermore, the battery is used as a backup power source and emergency power source for the DC thruster and stores electrical energy.

[0013] Furthermore, the DC propulsion unit receives DC96V electric energy from the rectifier to drive the ship, and receives control signals from the controller to perform acceleration and deceleration operations.

[0014] Furthermore, the rectifier is connected to an external AC power source and uses silicon-controlled rectifiers to convert the AC power into 96V DC for use by the DC thrusters. The battery serves as a backup power source and an emergency power source for the DC thrusters, respectively, supplementing the propulsion power supply in the event of insufficient rectifier power or an AC power outage. When the battery is not operating, it is recharged by a charger for future use. The battery's charge and discharge status is adjusted according to the thruster's operating conditions, with the controller ensuring state matching. This significantly improves the continuity and reliability of the DC thruster's power supply during operation.

[0015] The advantages of this utility model include small size, low voltage, and stable system operation. It meets the current trend of electrification of small boats, especially yachts and sightseeing boats. It can replace existing diesel-powered boats, reducing carbon emissions in inland waterways and achieving energy-saving and environmental protection effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of a 96V DC propulsion drive system of the present utility model.

[0017] 1 is the controller, 2 is the charger, 3 is the rectifier, 4 is the battery, and 5 is the DC thruster. DETAILED DESCRIPTION

[0018] like Figure 1 As shown, the shaft power supply control system of the utility model is a 96V DC propulsion drive system, including a rectifier (KF-ZLQ) 3, a charger (KF-CDP) 2, a DC thruster (SB-TYC) 5, a battery (6-QW) 4 and a controller (KF-PCS) 1; the charger 2 and the rectifier 3 are connected in parallel, the charger 2 is connected to the battery 4, the rectifier 3 is connected to the DC thruster 5, and the controller 1 is connected to the charger 2, the rectifier 3 and the battery 4 respectively.

[0019] The entire system of the utility model is powered by an external AC power supply. The external AC power supply is rectified into a DC96V DC power supply by the rectifier 3, and the DC propeller 5 is powered to drive the propeller to operate and provide propulsion power for the ship. At the same time, the battery 4 is connected to the external power supply through the charger 2 for charging. When the DC propeller 5 is running, instantaneous acceleration is required. At this time, the propulsion power increases instantaneously, and the rectifier 3 is not enough to meet the instantaneous large-capacity jump output. At this time, the controller 1 monitors the power demand of the system. The instantaneous power increase demand is greater than the transient characteristics of the rectifier. The controller 1 controls the battery 4 to discharge and cuts off the charging output of the charger 2 at the same time to ensure that the energy output meets the propulsion power demand. When the ship is driving normally, the controller 1 detects that the SOC of the battery 4 is lower than 30%, and connects the charger 2 to charge the battery 4 and use it as a backup power supply.

[0020] The rectifier converts the AC power of the external power supply into a 96V DC power supply for use by the DC thruster.

[0021] The charger is used to charge the battery pack to replenish the electricity.

[0022] The DC propeller is composed of a 96V DC motor and is used to provide propulsion power to the ship.

[0023] The battery is used to store the electric energy of the external power supply, and at the same time provides energy supplement when the rectifier cannot meet the instantaneous load increase of the DC thruster, thereby ensuring the normal operation of the DC thruster.

[0024] The controller is the energy controller of the system, controlling the coordination of the rectifier and the power output of the battery, and controlling the battery's charge and discharge according to the battery's SOC state. It also controls the speed regulation and torque output of the DC thruster.

[0025] The present invention provides a 96V DC propulsion drive system, characterized by being composed of a rectifier, a charger, a DC thruster, a battery, and a controller. The rectifier is connected to an external AC power source and rectifies the AC power into 96V DC power through a thyristor rectifier for use by the DC thruster. The battery serves as the thruster's backup power source and emergency power source, respectively, to supplement the propulsion power supply when the rectifier's energy is insufficient or the AC power is cut off. When the battery is not working, it is charged by the charger for ready use. The battery's charge and discharge states are adjusted according to the thruster's operating conditions, and the controller performs state matching. This can greatly improve the continuity and reliability of the DC thruster's power supply during operation.

Claims

1. A 96V DC propulsion drive system, characterized by: It includes a rectifier, a charger, a DC thruster, a battery and a controller; the charger and the rectifier are connected in parallel, the charger is connected to the battery, the rectifier is connected to the DC thruster, and the controller is connected to the charger, the rectifier and the battery respectively.

2. The 96V DC propulsion drive system according to claim 1, characterized in that: The charger and rectifier are connected to an external AC power source.

3. The 96V DC propulsion drive system according to claim 2, characterized in that: The charger model is KF-CDP and the rectifier model is KF-ZLQ.

4. The 96V DC propulsion drive system according to claim 3, characterized in that: The controller controls the normal operation of the DC thruster, monitors the working condition of the rectifier, and controls the charge and discharge management of the battery.

5. The 96V DC propulsion drive system according to claim 4, characterized in that: The controller model is KF-PCS and the DC thruster model is SB-TYC.

6. The 96V DC propulsion drive system according to claim 5, characterized in that: The charger manages the charging and discharging of the battery through an external AC power supply.

7. The 96V DC propulsion drive system according to claim 6, characterized in that: The battery model is 6-QW.

8. The 96V DC propulsion drive system according to claim 7, characterized in that: The rectifier converts the external AC power into 96V DC power.

9. The 96V DC propulsion drive system according to claim 8, characterized in that: Batteries are used as backup and emergency power supplies for DC thrusters and store electrical energy.

10. The 96V DC propulsion drive system according to claim 9, characterized in that: The DC thruster receives DC96V power from the rectifier to drive the ship, and receives control signals from the controller to perform acceleration and deceleration operations.

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