Hybrid wind power installation vessel equipped with a fuel-electric hybrid drive system and energy matching function

Abstract

The present invention relates to the technical field of offshore wind turbine generator set installation equipment, and more particularly to a fuel-electric hybrid drive system and a hybrid wind power installation vessel with an energy matching function. The fuel-electric hybrid drive system includes an energy supply assembly. The energy supply assembly includes generator sets, emergency generator sets, and battery packs. Different numbers of generator sets can be started to supply energy to the wind power installation vessel under different loads. When the generator sets provide sufficient energy, excess electrical energy is stored in the battery pack. When the energy supply is insufficient, the battery packs are used to supply energy to the wind power installation vessel. In the event of a generator failure, the battery packs provide energy until the emergency generator sets start. When the wind power installation vessel is operating, a dynamic positioning system receives environmental signals from sensors, and the fuel-electric hybrid drive system adjusts the number of propeller start-ups, rotation speed, and direction angle to keep the vessel in a predetermined position. The energy supply assembly ensures sufficient power for the wind power installation vessel, solving the energy supply problem in harsh conditions and improving the stability of the wind power installation vessel.

Description

[Technical Field]

[0001] The present invention relates to the technical field of offshore wind power generator set installation equipment, and in particular to a hybrid wind power generation installation vessel equipped with a fuel-electric hybrid drive system and an energy matching function. [Background technology]

[0002] As energy issues have become more serious in recent years, there has been a global trend to seek out new energy sources and their utilization. Shallow waters near continents offer abundant wind resources unobstructed by mountains or buildings, making them ideal locations for wind power generation. In recent years, the construction of offshore wind power generation facilities has become increasingly active around the world. However, offshore wind power generation facilities must overcome environmental factors such as wind, waves, and currents, and so wind power generation installation vessels specifically designed for offshore wind power generation facilities have been attracting attention.

[0003] Most conventional offshore wind power installation vessels are equipped with a generator set to supply energy to the vessel. In the event of a generator set failure, a battery pack, along with an emergency generator set, provides energy. To ensure the power performance of offshore wind power installation vessels, the engine output of the vessel generally needs to meet harsh sailing and full load conditions. However, if the load of the offshore wind power installation vessel is too small, the installed power will be huge, resulting in low system efficiency and large losses. Furthermore, dynamic positioning is limited by the installed power, so on-site engineers are urgently required to solve this problem. Summary of the Invention [Problem to be solved by the invention]

[0004] SUMMARY OF THE INVENTION In order to solve the problems and drawbacks of the prior art as described above, the present invention provides a hybrid wind power installation vessel equipped with a fuel-electric hybrid drive system and an energy matching function.

[0005] In order to solve the above technical problems, the present invention provides a fuel-electric hybrid drive system applied to drive and energy supply of a wind power installation vessel, including an energy supply assembly, wherein the energy supply assembly supplies energy to the wind power installation vessel; The energy supply assembly includes at least one diesel generator set, at least one battery pack and at least one emergency diesel generator set, and starts up different numbers of the diesel generator sets based on different load requirements to supply energy to the wind power installation vessel, and when the energy supplied by the diesel generator sets to the wind power installation vessel is sufficient, excess electrical energy flows to the battery pack and the emergency diesel generator set is on standby, and when the energy supplied by the diesel generator sets is insufficient, the diesel generator sets, together with the battery pack, supply energy to the wind power installation vessel, and when the diesel generator sets fail, the battery pack provides a fuel-electric hybrid drive system that supplies energy until the emergency diesel generator sets are started up.

[0006] The energy supply assembly is connected by a circuit, and the circuit includes a diesel generator set, an emergency diesel generator set, a shore power source, a frequency converter, an air separator, a bus tie breaker, an AC voltage regulator, a thruster, a battery pack, a DC voltage regulator, a fuse, a rectifier / inverter combined transmitter, a load, a main switchboard, a battery switchboard, and an emergency switchboard. The main switchboard includes an 11KV main switchboard, a 690V main switchboard, and a 230V main switchboard. The bus tie breaker isolates the main switchboards, and the main switchboards control the flow of power generated by the energy supply assembly to designated loads. When the diesel generator set supplies power, the air separator is closed, and the power supplied by the diesel generator set is switched to the AC power of the 11KV main switchboard. The power flows into the distribution board busbar, passes through the air separator, the AC voltage regulator and the frequency converter and enters the propeller to operate the propeller, maintaining the sailing of the wind power installation vessel. The AC distribution board busbar of the 11KV main distribution board introduces power through a circuit to the AC distribution board busbar of the 690V main distribution board to supply power to corresponding loads. At the same time, the AC distribution board busbar of the 690V main distribution board introduces power through a circuit to the AC distribution board busbar of the 230V main distribution board to supply power to corresponding low-voltage loads. The battery pack is charged by circuit rectification and discharged by circuit reversal. When the main power supply is isolated, the emergency diesel generator set will automatically start within 45 seconds and be connected to the emergency distribution board. Before the emergency generator set starts, power will be supplied by the battery pack.

[0007] The design of the diesel generator set and main switchboard ensures a stable power supply for the wind power installation vessel when operating at sea. Even if the main power supply is cut off, the emergency diesel generator set can be started up in a short time, ensuring power supply to core equipment and improving the stability and reliability of the wind power installation vessel. The coordinated operation of the air separator, AC voltage regulator, frequency converter, etc. enables power supply and management to different loads. The design of the 11KV main switchboard, 690V main switchboard, and 230V main switchboard allows power to be distributed to different loads as needed, improving the flexibility and controllability of power supply.

[0008] The circuit further includes a battery pack charging branch circuit, a battery pack discharging branch circuit, a transformer branch circuit, a load branch circuit, an emergency charging branch circuit, a power supply branch circuit, and a propulsion branch circuit. The battery pack charging branch circuit electrically connects a first AC voltage regulator, a fuse, a fourth air separator, a rectifier / inverter combined transmitter, a DC voltage regulator, and a battery pack by a third air separator in this order. The battery pack discharging branch circuit electrically connects a battery pack, a DC voltage regulator, a rectifier / inverter combined transmitter, a fourth air separator, a fuse, and a first AC voltage regulator by a third air separator. , a third air separator, the transformer branch circuit is composed of an 11KV-690V transformer branch circuit and a 690V-230V transformer branch circuit, the load branch circuit is composed of a 690V load branch circuit and a 230V load branch circuit, the emergency charging branch circuit is composed of a 690V emergency charging branch circuit and a 230V emergency transformer charging branch circuit, in the power supply branch circuit, a diesel generator set and a shore power supply are connected via a first frequency converter, a first air separator and an 11KV main distribution panel, the propulsion branch circuit is composed of a third air separator, a first AC voltage regulator, a second frequency converter, a propulsion The 11KV main switchboard is connected to a transformer, and the plurality of AC distribution board bus bars of the 11KV main switchboard are separated by bus tie breakers. The 11KV main switchboard is powered by A diesel generator sets, and connected below it are B propulsion branch circuits, C battery pack branch circuits, and D transformer branch circuits. The E AC distribution board bus bars of the 690V main switchboard are separated by bus tie breakers. Connected below the 690V main switchboard are F load branch circuits, G emergency charging branch circuits, and H transformer branch circuits. The plurality of AC distribution board bus bars of the 230V main switchboard are separated by bus tie breakers. The 230V main switchboard is connected to J load branch circuits, and the 690V main switchboard is connected to K emergency transformer charging branch circuits. The emergency charging branch circuits under the 690V main switchboard include a ninth air separator, and the number of emergency branch circuits is L. The emergency charging branch circuits are separated by bus tie breakers at the AC switchboard busbars so as to maintain emergency power supply when a part of the AC switchboard busbars fails. The 230V main switchboard is connected to M emergency charging branch circuits, and the M emergency charging branch circuits are led from the 690V main switchboard and connected to a seventh air separator.The system includes a third AC voltage regulator and an eighth air separator, and is separated by a bus tie breaker at the time of merging to ensure stable operation of the system. The number of battery packs is N.

[0009] The layout of each branch circuit allows for consideration of power supply, emergency response in the event of a failure, and ensures normal operation of the system.

[0010] Furthermore, the bus tie breaker of the 11KV main distribution panel is a normally closed switch, The bus tie breaker of the 690V main switchboard is a normally open switch, The bus tie breaker on the 230V main distribution panel is a normally open switch.

[0011] System fault isolation can be achieved, and system safety and flexibility can be improved.

[0012] Furthermore, the present invention provides a hybrid wind power generation installation ship with an energy matching function, which includes a dynamic positioning system and a hull, wherein the dynamic positioning system and the hull are powered by the fuel-electric hybrid drive system, the dynamic positioning system includes sensors and propellers, and the sensors include a position sensor, a wind sensor, and a water current speed sensor, and the dynamic positioning system attaches the position sensor, the wind sensor, and the water current speed sensor to the hull to transmit ambient environment signals to the fuel-electric hybrid drive system, and the fuel-electric hybrid drive system controls related circuits based on signals from the sensors, thereby providing a hybrid wind power generation installation ship that adjusts the number of activations, rotation speed, and directional angle of the propellers so that the hull always maintains a predetermined position.

[0013] Furthermore, the hybrid wind power generation installation ship further includes a pile foot and a lifting and fixing part, The fuel-electric hybrid drive system provides power to the pile feet and controls the lifting and lowering of the pile feet, the pile feet and the lifting fixtures are fixed to the hull, the racks of the pile feet and the gears of the lifting fixtures are meshed, and the pile feet are distributed symmetrically along the bow direction on the deck.

[0014] This design provides stable support for the hull and provides relatively high load-bearing capacity.

[0015] Furthermore, the propellers include a rotary propeller, a bow propeller, and a telescopic propeller, the bow propeller being located at the bow, the telescopic propeller being located in the middle of the ship, and the rotary propeller being located at the stern.

[0016] It gives you more control over the position of your vessel.

[0017] Furthermore, the number of bow-side propellers is O, which are capable of rotating in forward and reverse directions and operate in different directions corresponding to the bow, the number of telescopic propellers is P, which assist operation when resistance is high and are retracted when resistance is low, the number of rotary propellers is Q, and the rotation angle is R°.

[0018] By installing a bow thruster, a telescopic thruster and a rotary thruster, the ship's ability to withstand severe weather conditions is improved and the application efficiency of the thrusters is improved.

[0019] Furthermore, the hybrid wind power installation ship further includes a crane mechanism, the crane mechanism including a crane rotating base and a crane, the crane rotating base is connected to the crane, the number of the cranes is S, and they are attached to the crane rotating base and have a rotatable angle of T degrees, the ratio of the length, width and height of the hull is ∪:V:W, the ratio of the length of the hull to the length of the pile leg is X:Y, and the ratio of the length of the hull to the length of the crane is a:b.

[0020] Vessels equipped with crane turntables and cranes have the advantage of increased lifting capacity and improved work efficiency, allowing the vessel to handle complex lifting operations and improving operational efficiency and safety.

[0021] Furthermore, the number of pillar-type cargoes is C and is mounted on the hull.

[0022] As part of the superstructure, rational placement allows the ship to bear forces rationally, affecting the ship's center of gravity. [Effects of the Invention]

[0023] (1) The energy supply system of the present invention includes a diesel generator set, an emergency diesel generator set, and a battery pack. When the energy supply from the diesel generator set is sufficient, excess electrical energy is stored in the battery pack. If the diesel generator set fails, the diesel generator set cannot supply power normally. Therefore, the energy stored in the battery pack is first used to supply energy to the hull, and the emergency diesel generator set is started within a certain period of time to ensure the normal operation of the ship and the safety of the hull. When the energy supply from the diesel generator set is insufficient, energy can be supplied to the hull in combination with the battery pack. In this way, the design of multiple energy sources ensures the sustainability of the system and can provide sufficient operating power even under extreme conditions.

[0024] (2) When installing an offshore wind turbine, the wind turbine installation vessel must be held in place and stabilized before the truss piles are lowered to maintain the vessel in place. However, it is difficult to ensure that the vessel's position remains stable due to the offshore environment, and conventional offshore wind turbine installation platforms are complex to install and cannot be positioned accurately. In this invention, a dynamic positioning system is installed on the vessel's hull, and information on offshore wind, waves, currents, etc. is transmitted to each propeller in real time via sensors. The propellers then adjust their azimuth and rotation speed to offset the effects of offshore wind and currents, ensuring that the vessel is in the desired position and facilitating subsequent installation work.

[0025] (3)) Offshore wind turbines must be installed in a designated location. In this invention, truss-type pile legs are installed on the hull, and a gear rack connects the pile leg lifting and fixing parts to the truss-type pile legs, controlling the lifting and lowering of the truss-type pile legs. The multiple truss-type pile legs extend to the seabed, securing the offshore installation vessel. The hull is further equipped with a superstructure including a power room, a column-type cargo space, and a helicopter platform, which can support the vessel's normal navigation and installation work. By dividing the propellers into groups on the hull, the safety and flexibility of the wind turbine installation vessel can be ensured. [Brief explanation of the drawings]

[0026] In order to clarify the objectives, technical solutions and advantages of the embodiments of the present invention, the drawings required for use in the embodiments or prior art will be briefly described below. However, the drawings described below are only some embodiments of the present invention, and all other embodiments and drawings that can be obtained by those skilled in the art without creative work fall within the scope of protection of the present invention. [Figure 1] 1 is a diagram of a power distribution system of the present invention. [Figure 2] FIG. 2 is a power supply branch circuit diagram in FIG. [Figure 3] FIG. 2 is a circuit diagram of the forwarding branch in FIG. 1. [Figure 4] FIG. 2 is a diagram of the 11KV-690V transformer branch circuit in FIG. 1. [Figure 5] FIG. 2 is a diagram of the 690V-230V transformer branch circuit in FIG. 1. [Figure 6] FIG. 2 is a diagram of the 690V load branch circuit in FIG. 1. [Figure 7] FIG. 2 is a diagram of the 230V load branch circuit in FIG. 1. [Figure 8] FIG. 2 is a branch circuit diagram of the battery pack charge / discharge circuit in FIG. [Figure 9] FIG. 2 is a circuit diagram of the 690V emergency charging branch circuit in FIG. 1. [Figure 10] FIG. 2 is a diagram of the 230V emergency transformer charging branch circuit in FIG. 1. [Figure 11] FIG. 2 is a group diagram of a thruster of a dynamic positioning system according to an embodiment of the present invention. [Figure 12] FIG. 1 is a diagram illustrating the operation principle of a dynamic positioning system according to an embodiment of the present invention. [Figure 13] 1 is a perspective view of a hull according to an embodiment of the present invention. FIG. [Figure 14] FIG. 2 is a rear view of the hull of the embodiment of the present invention. [Figure 15] FIG. 1 is a side view of a ship hull according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0027] The present invention will be described in more detail below with reference to the specification and drawings. Referring to the overall layout diagram of the wind power generation installation ship shown in Figures 13, 14 and 15, the ship mainly includes a hull 001, a crane rotating platform 0021, a truss-type pile pedestal 003, a crane 002, a power room 0043, a helicopter platform 0041, a pile pedestal lifting and fixing unit 0031, a column-type cargo 0042, a rotary propeller 0051, a bow propeller 0052 and a telescopic propeller 0053. The hull 001 is equipped with a column-type cargo 0042, a power supply room 0043, and a helicopter platform 0041, and the pile pedestal lifting and fixing part 0031 and the truss pile pedestal 003 are connected by a gear rack, a crane rotatable base 0021 is provided on the truss pile pedestal 003, and the crane rotatable base 0021 is connected to the crane 002, and the pile pedestal lifting and fixing part 0031 is fixedly connected between the hull 001 and the truss pile pedestal 003. The bow propeller 0052 is located at the bow, the telescopic propeller 0053 is located approximately in the center of the ship, and the rotary propeller 0051 is located at the stern. Four truss pile pedestals 003 of equal length and arranged symmetrically are attached to the hull 001. There are three bow thrusters 0052, which are located at the bow end of the hull 001, and two telescopic thrusters 0053, which are attached approximately in the center of the hull 001. The telescopic thrusters 0053 can be stored within the hull 001. There are four rotary thrusters 0051, which are attached to the stern of the hull 001. There is one crane 002, which is attached to the crane turntable 0021 and can rotate 360 ​​degrees. There are three column-type cargoes 0042, which are attached to the deck. The ratio of the length, width, and height of the hull 001 is approximately 13:5:1. The ratio of the length of the hull 001 to the length of the truss-type pile leg 003 is approximately 5:4, and the ratio of the length of the hull 001 to the length of the crane 002 is approximately 5:6. The bow propeller 0052 can rotate in both forward and reverse directions, and operates in different directions corresponding to the bow. The retractable propeller 0053 may assist operation when resistance is high and retract when resistance is low. The rotary propeller 0051 can rotate 360 ​​degrees, and its rotation angle can be changed according to the requirements of different directions.When the hull 001 navigates near the wind power generation facility, the pile lifting and fixing unit 0031 lowers the pile, allowing the ship to be lifted into place. The crane rotatable platform 0021 rotates to position the crane 002 at the corresponding horizontal position, and the crane 002's joint rotates to lift the crane 002 to the corresponding vertical position, completing the installation of the wind power generation facility. A helicopter can be placed on the helicopter platform 0041 at the bow. The dynamic positioning system allows the hull 001 to maintain a specified position by adjusting the direction and rotation speed of the propellers when the ship is sailing, lifting, or entering port.

[0028] As shown in Figure 1, the power distribution system of the wind power generation installation vessel is designated by the following symbols: power supply branch circuit 000, propulsion branch circuit 100, 11KV-690V transformer branch circuit 110a, 690V-230V transformer branch circuit 110b, 690V load branch circuit 120a, 230V load branch circuit 120b, battery pack charge / discharge branch circuit 130, 690V emergency charging branch circuit 140a, 230V emergency transformer charging branch circuit 140b, diesel generator set G1, shore power supply 2, first frequency converter 3, first air separator 4, second air separator 5, third air separator 6, first bus tie breaker 7, second bus tie breaker 8, third bus tie breaker 9, first AC voltage regulator 10, second frequency converter 11, propulsion set 12, second AC voltage regulator 13, battery pack 14, DC voltage regulator 15, fuse 16, fourth air separator 17, rectifier / inverter combined transmitter 18, fifth air separator 19, bus tie breaker 20, emergency diesel generator set G21, sixth air separator 22, seventh air separator 23, third AC voltage regulator 24, eighth air separator 25, ninth air separator 26, tenth air separator 27, fourth AC voltage regulator 28, first load 29, eleventh air separator 30, fourth bus tie breaker 31, twelfth air separator 32, second load 33, 11KV main distribution panel A1, 690V main distribution panel A2, 230V main distribution panel A3, battery distribution panel B, and emergency distribution panel C.

[0029] The power distribution system of the wind power installation vessel includes four diesel generator sets G1, one emergency diesel generator set G21, an 11KV main distribution panel A1, a 690V main distribution panel A2, a 230V main distribution panel A3, a battery distribution panel B, an emergency distribution panel C, a power branch circuit 000, a propulsion branch circuit 100, an 11KV-690V transformer branch circuit 110a, a 690V-230V transformer branch circuit 110b, a 690V load branch circuit 120a, a 230V load branch circuit 120b, a battery pack charging / discharging branch circuit 130, a 690V emergency charging branch circuit 140a, and a 230V emergency transformer charging branch circuit 140b. The transformer branch circuits consist of an 11KV-690V transformer branch circuit 110a and a 690V-230V transformer branch circuit 110b. The load branch circuits consist of a 690V load branch circuit 120a and a 230V load branch circuit 120b. The emergency charging branch circuits consist of a 690V emergency charging branch circuit 140a and a 230V emergency transformer charging branch circuit 140b. The 11KV main distribution panel A1 is isolated by AC distribution board bus bars via a first bus tie breaker 7, a second bus tie breaker 8, and a third bus tie breaker 9. The 11KV main distribution panel A1 is powered by four diesel generator sets G1 and a shore power source 2, and connected below it are nine propulsion branch circuits 100, four battery pack charging / discharging branch circuits 130, and four transformer branch circuits 110a. The 690V main distribution panel A2 is separated by four AC distribution panel bus bars via three fourth bus tie breakers 20, and four load branch circuits 120a, two emergency charging branch circuits 140a, and four transformer branch circuits 110b are connected below the 690V main distribution panel A2. The 230V main distribution panel 3 is separated by four AC distribution panel bus bars via three fifth bus tie breakers 31, and four load branch circuits 120b are connected below the 230V main distribution panel A3. Two emergency transformer charging branch circuits 140b are connected below the emergency distribution panel C. There are four battery distribution panels B, which form four battery pack charging / discharging branch circuits 130.

[0030] As shown in Figures 1 and 2, the power supply branch circuit 000 inputs power to an 11KV main distribution panel A1 via a diesel generator set G1 or a shore power supply 2, a first frequency converter 3, and a first air separator 4 in this order, and the power from the 11KV main distribution panel A1 is distributed by subsequent branch circuits.

[0031] As shown in Figures 1 and 3, in the propulsion branch circuit 100, the propulsion set 12 is divided into four rotary propulsors 0051 abbreviated as CT1, CT2, CT3, and CT4, three bow propulsors 0052 abbreviated as AT1, AT2, and AT3, and two telescopic propulsors 0053 abbreviated as BT1 and BT2.

[0032] The electric power passes through the 11KV main distribution panel A1, the third air separator 6, the first AC voltage regulator 10, the second frequency converter 11, and the propeller set 12 in order to provide power to the propeller set 12, which then operates the propeller set 12, and the propeller set 12 drives the ship to move.

[0033] As shown in Figure 4, in the 11KV-690V transformer branch circuit 110a, the power from the 11KV main distribution panel A1 passes through the 11KV main distribution panel A1, the third air separator 6, the second AC voltage regulator 13, the fifth air separator 19, and the 690V main distribution panel A2 in that order, and is then transformed and input to the 690V main distribution panel A2. The power from the 690V main distribution panel A2 is then distributed by the subsequent branch circuits.

[0034] As shown in FIG. 5, in the 690V-230V transformer branch circuit 110b, the power from the 690V main distribution panel A2 is transformed and input to the 230V main distribution panel A3 via the 690V main distribution panel A2, the tenth air separator 27, the fourth AC voltage regulator 28, the eleventh air separator 30, and the 230V main distribution panel A3 in that order, and the power from the 230V main distribution panel A3 is distributed by the subsequent branch circuits.

[0035] As shown in FIG. 6, in the 690V load branch circuit 120a, power is supplied by the 690V main distribution panel A2, and the power is supplied to the 690V main distribution panel A2, the tenth air separator 27, and the first load 29 in this order.

[0036] As shown in FIG. 7, in the 230V load branch circuit 120b, power is supplied by the 230V main distribution panel A3, and the power is supplied to the 230V main distribution panel A3, the twelfth air separator 32, and the second load 33 in this order.

[0037] As shown in Figure 8, the battery pack charging / discharging branch circuit 130 has both battery pack charging and discharging functions. The circuit's operating sequence during battery pack charging is the 11KV main distribution panel A1, third air separator 6, first AC voltage regulator 10, fuse 16, fourth air separator 17, rectifier / inverter combined transmitter 18, battery distribution panel B, DC voltage regulator 15, and battery pack 14. The circuit during battery pack 14 discharge is the battery pack 14, DC voltage regulator 15, battery distribution panel B, rectifier / inverter combined transmitter 18, fourth air separator 17, fuse 16, first AC voltage regulator 10, third air separator 6, and 11KV main distribution panel A1. By switching between the two processes, the battery pack charging / discharging branch circuit 130 functions to eliminate and compensate for power shortages.

[0038] 9, in the 690V emergency charging branch circuit 140a, the current passes through the 690V emergency distribution board C, the ninth air separator 26, and the 690V main distribution board A2 in that order, thereby realizing power supply from the emergency distribution board C to the 690V main distribution board A2.

[0039] 10, in the 230V emergency transformer charging branch circuit 140b, the power passes through the 690V emergency distribution board C, the seventh air separator 23, the third AC voltage regulator 24, the eighth air separator 25, and the 230V main distribution board A3 in this order, thereby realizing the supply of power from the emergency distribution board C to the 230V main distribution board A3.

[0040] When the power supply is normal, the wind power installation vessel is supplied with power from the diesel generator set G1. When the diesel generator set G1 supplies power, the first air separator 4 is closed and the power supplied from the diesel generator set G1 is combined with the AC distribution board busbar of the 11KV main distribution panel A1. The power distributed by the AC distribution board busbar passes through the third air separator 6, the first AC voltage regulator 10, and the second frequency converter 11 to the propeller set 12, which operates and allows the vessel 001 to sail at sea. The AC distribution board busbar of the 11KV main distribution panel A1 introduces power to the AC distribution board busbar of the 690V main distribution panel A2 via the 11KV-690V transformer branch circuit 110a, and supplies power to the corresponding first load 29. At the same time, the AC distribution board busbar of the 690V main switchboard A2 introduces power to the AC distribution board busbar of the 230V main switchboard A3 via the 690V-230V transformer branch circuit 110b, supplying power to the corresponding second load 33. Throughout the entire process, the battery pack 14 plays a role in eliminating and supplementing strength deficiencies via the battery pack charge / discharge branch circuit 130. When the main power supply is isolated, the emergency generator set G21 automatically starts within 45 seconds and connects to the emergency switchboard C. Before the emergency generator set G21 starts, the battery pack 14 supplies power to maintain the necessary load operation.

[0041] As shown in Figures 11 and 12, a position sensor, a water current sensor, and a wind force sensor are installed on the ship. When the ship's position changes due to the influence of waves, the dynamic positioning system is activated. The position sensor detects the change in the ship's position, and the water current sensor and wind force sensor detect the forces of wind, waves, and current, and the required counterforce can be calculated. This information, combined with the position information, is input into the dynamic positioning system to calculate and obtain the rotational speed and direction angle information of the propeller set 12. The rotational speed signal is input to CT1 and AT3, CT2 and AT2, and CT3 and AT1, and the direction angle signal is input to CT1, CT2, and CT3. Based on the signals, the propeller set 12 adjusts its rotational speed and direction angle to the set values, allowing the ship to reach its new position. During this process, it continues to compare and adjust with the predetermined position until the ship remains at the predetermined position.

[0042] As shown in Figures 11 and 12, during normal sailing, the number of propeller sets 12 is matched and optimized based on the load condition of the hull, and when the load is low, some of the propeller sets 12 are operated to meet sailing requirements. At the same time, the number of diesel generator sets G1 is matched and optimized to start and operate at full power, so that the power supply of the propeller sets 12 can be matched and met, and the efficiency of a single diesel generator set G1 can be maximized. When the load is high, more propellers 005 can be started and more diesel generator sets G1 can be started and operated at full power, so that the thrust requirements of the propeller sets 12 can be matched and met.

[0043] When sailing with a light load, the propeller set 12 requires relatively little electrical energy, so the diesel generator set G1 operates at full power, generating excess electrical energy. In this case, by matching and optimizing the numbers of diesel generator sets G1 and propeller sets 12, the number of operating diesel generator sets G1 can be reduced. At the same time, the excess electrical energy generated by the diesel generator set G1 is stored in the battery pack 14 via the charging branch circuit in the battery pack charging / discharging branch circuit 130. The electrical energy stored in the battery pack 14 can be used when needed.

[0044] When the ship is under heavy load or in very harsh sailing conditions, the ship's sailing speed will slow down due to environmental influences, but at this time, the numbers of diesel generator sets G1 and propeller sets 12 are matched and optimized so that all diesel generator sets G1 and propeller sets 12 are operating. At the same time, since the power supply from the diesel generator set G1 alone is insufficient to maintain the propulsion power of the propeller sets 12, electrical energy from the battery pack is used, and electrical energy is input from the battery pack 14 to the propeller sets 12 via the battery pack charge / discharge branch circuit 130 and the propulsion branch circuit 100 in order to ensure that the propeller sets 12 operate normally, thereby maintaining the ship sailing in a predetermined direction and speed.

[0045] When a ship operates using the dynamic positioning system under heavy loads or extremely harsh sailing conditions, the number of diesel generator sets G1 and propeller sets 12 is matched and optimized to ensure that all diesel generator sets G1 and propeller sets 12 are operating due to large wind and wave forces. However, because the thrust of the propeller sets 12 is small and the ship's position changes rapidly due to waves, the power supply from the diesel generator set G1 alone cannot maintain the propulsion power of the propeller sets 12, resulting in poor accuracy of dynamic positioning. In this case, it is necessary to utilize the energy stored in the battery pack 14. Electrical energy is input from the battery pack 14 to the propeller sets 12 via the battery pack's charging / discharging branch circuit 130 and propulsion branch circuit 100. By simultaneously supplying power from the diesel generator set G1 and the battery pack 14, the propeller sets 12 can navigate in the specified direction and speed according to the signal, enabling the ship to withstand wind and waves.

[0046] If the diesel generator set fails, it cannot supply power normally. In this case, the air separator corresponding to the diesel generator set is disconnected. The energy stored in the battery pack can be used to input electrical energy from the battery pack to the propeller through the battery pack discharge branch circuit and the propulsion branch circuit, ensuring the normal operation of the ship, allowing the dynamic positioning system to operate normally, and ensuring the safety of the ship.

[0047] The above description of the disclosed embodiments will enable those skilled in the art to make or use the present invention, and various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined in this invention may be embodied in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed in this invention. [Explanation of symbols]

[0048] 001 hull; 002 Crane; 0021 Crane Rotating Platform; 003 Truss pile foot; 0031 pile foot lifting and fixing part; 004 Superstructure; 0041 helicopter platform; 0042 Pillar cargo; 0043 Power supply room; 005 Propulsion Set; 0051 rotary propeller; 0052 Forward thruster; 0053 Telescopic thruster;

Claims

1. 1. A fuel-electric hybrid drive system applied to drive and energy supply of a wind power installation vessel, including an energy supply assembly, comprising: the energy supply assembly supplies energy to the wind power installation vessel; the energy supply assembly includes at least one diesel generator set, at least one battery pack, and at least one emergency diesel generator set; activating different numbers of said diesel generator sets based on different load demands to supply energy to the wind power installation vessel; When the energy supplied to the wind power installation vessel by the diesel generator set is sufficient, excess electrical energy flows to the battery pack, and the emergency diesel generator set is put into standby mode; When the energy supplied by the diesel generator set is insufficient, the diesel generator set supplies energy to the wind power installation ship together with the battery pack; 1. A fuel-electric hybrid drive system, wherein if the diesel generator set fails, the battery pack provides energy until an emergency diesel generator set starts.

2. the energy supply assembly is connected by a circuit; The circuit includes a diesel generator set, an emergency diesel generator set, a shore power source, a frequency converter, an air separator, a bus tie breaker, an AC voltage regulator, a propeller, a battery pack, a DC voltage regulator, a fuse, a rectifier / inverter combined transmitter, a load, a main distribution panel, a battery distribution panel, and an emergency distribution panel; The main distribution panel includes an 11KV main distribution panel, a 690V main distribution panel, and a 230V main distribution panel; the bus tie breaker isolates the main distribution panel; the main distribution panel controls the flow of the power generated by the energy supply assembly to the designated loads; when the diesel generator set supplies power, the air separator is closed, and the power supplied by the diesel generator set is merged into the AC distribution board bus bar of the 11 KV main distribution panel, passes through the air separator, the AC voltage regulator and the frequency converter, enters the propeller, and operates the propeller to maintain the seagoing of the wind power installation vessel; the AC distribution board busbar of the 11KV main switchboard introduces power through a circuit to the AC distribution board busbar of the 690V main switchboard to supply power to corresponding loads, and at the same time, the AC distribution board busbar of the 690V main switchboard introduces power through a circuit to the AC distribution board busbar of the 230V main switchboard to supply power to corresponding low-voltage loads; The battery pack is charged by circuit rectification and discharged by circuit reversal; 2. The fuel-electric hybrid drive system of claim 1, wherein upon main power isolation, the emergency diesel generator set automatically starts within 45 seconds and is connected to the emergency power board and powered by the battery pack before the emergency generator set starts.

3. the circuits include a battery pack charging branch circuit, a battery pack discharging branch circuit, a transformer branch circuit, a load branch circuit, an emergency charging branch circuit, a power supply branch circuit, and a propulsion branch circuit; the battery pack charging branch circuit electrically connects, in order, the first AC voltage regulator, the fuse, the fourth air separator, the rectifier / inverter combined transmitter, the DC voltage regulator, and the battery pack via the third air separator; the battery pack discharge branch circuit includes a battery pack, a DC voltage regulator, a rectifier / inverter combined transmitter, a fourth air separator, a fuse, a first AC voltage regulator, and a third air separator; The transformer branch circuit is composed of an 11KV-690V transformer branch circuit and a 690V-230V transformer branch circuit, the load branch circuit comprises a 690V load branch circuit and a 230V load branch circuit; The emergency charging branch circuit is composed of a 690V emergency charging branch circuit and a 230V emergency transformer charging branch circuit, In the power supply branch circuit, the diesel generator set and the shore power supply are connected via a first frequency converter, a first air separator, and an 11 KV main distribution panel; the propulsion branch circuit is connected in sequence to a third air separator, a first AC voltage regulator, a second frequency converter, and a propulsion unit; the plurality of AC distribution board bus bars of the 11 KV main distribution panel are separated by bus tie breakers; The 11KV main distribution panel is powered by A diesel generator sets, and B propulsion branch circuits, C battery pack branch circuits, and D transformer branch circuits are connected below it. The E AC distribution plate bus bars of the 690V main distribution panel are separated by bus tie breakers; F load branch circuits, G emergency charging branch circuits, and H transformer branch circuits are connected under the 690V main distribution panel, a plurality of AC distribution board bus bars of the 230V main distribution panel separated by bus tie breakers; J load branch circuits are connected under the 230V main distribution panel, K emergency transformer charging branch circuits are connected under the emergency power distribution board; the emergency charging branch circuit under the 690V main distribution panel includes a ninth air separator, and the number of the emergency branch circuits is L, and the emergency branch circuits are separated by bus tie breakers in the AC distribution panel bus bars so as to maintain emergency power supply when a part of the AC distribution panel bus bars fails; There are M emergency charging branch circuits on the 230V main distribution panel, which are led from the 690V main distribution panel and include a seventh air separator, a third AC voltage regulator, and an eighth air separator, and are separated by a junction bus tie breaker to ensure stable operation of the system; 3. The fuel-electric hybrid drive system of claim 2, wherein the number of battery packs is N.

4. The bus tie breaker of the 11KV main distribution panel is a normally closed switch, The bus tie breaker of the 690V main distribution panel is a normally open switch; 3. The fuel-electric hybrid drive system of claim 2, wherein the 230V main distribution panel bus tie breaker is a normally open switch.

5. A hybrid wind power installation vessel with energy matching capabilities, including a dynamic positioning system and a vessel hull, The dynamic positioning system and the vessel are powered by a fuel-electric hybrid drive system according to claim 1 or 2; the dynamic positioning system includes a sensor and a propulsion device; The sensors include a position sensor, a wind sensor, and a water velocity sensor; The dynamic positioning system transmits ambient environment signals to the fuel-electric hybrid drive system by attaching the position sensor, the wind sensor, and the water current speed sensor to the hull, and the fuel-electric hybrid drive system controls related circuits based on the signals from the sensors to adjust the number of activations, rotation speed, and direction angle of the propellers so that the hull always maintains a predetermined position.

6. The hybrid wind power generation installation ship further includes a pile foot and a lifting and fixing part, The fuel-electric hybrid drive system according to any one of claims 1 to 4 provides power to the pile foot and controls the lifting and lowering of the pile foot; The hybrid wind power generation installation ship described in claim 5, characterized in that the pile foot and the lifting and fixing part are fixed to the hull, the rack of the pile foot and the gear of the lifting and fixing part are meshed, and the pile foot are distributed symmetrically along the bow direction on the deck.

7. The propellers include a rotary propeller, a bow propeller, and a telescopic propeller, The bow propeller is located at the bow, The telescopic propeller is located in the center of the vessel, The hybrid wind power generation installation vessel according to claim 5, wherein the rotary propeller is located at the stern.

8. The number of the bow-side propellers is O, and they are capable of rotating in forward and reverse directions, and each of them operates in a different direction corresponding to the bow, The number of the telescopic propellers is P, and they assist operation when resistance is large and are retracted when resistance is small; 8. The hybrid wind power generation installation ship according to claim 7, wherein the number of the rotary propellers is Q and the rotatable angle is R degrees.

9. The hybrid wind power generation installation ship further includes a crane mechanism, the crane mechanism includes a crane rotating bed and a crane; the crane rotatable bed is connected to the crane; The number of the cranes is S, and the cranes are attached to the crane rotating platform and have a rotatable angle of T degrees. The ratio of the length, width and height of the hull is ∪:V:W, The ratio of the length of the hull to the length of the pile leg is X:Y; 7. The hybrid wind power generation installation ship according to claim 6, wherein the ratio of the length of the hull to the length of the crane is a:b.

10. Including the superstructure, the superstructure includes a power room, a helicopter platform, and a column-type cargo; The hybrid wind power installation ship according to claim 5, characterized in that the number of the pillar-shaped cargoes is c and they are attached to the hull.

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