KR101947464B1 - Marine hybrid generator and power control method of the same - Google Patents

Abstract

The present invention relates to a hybrid power generator for a ship and a power control method thereof. According to the present invention, the hybrid power generator for a ship comprises a controller and an operation panel between a motor/power generator and a battery. The controller responds to a charged/discharged status of the battery to control the operation by a UPS inverter mode, a UPS converter mode, and a parallel driving mode. The hybrid power generator for a ship is not an apparatus for using kinetic energy like a vehicle but an apparatus for using electric energy of a power generator and a battery as hybrid power. According to the present invention, the hybrid power generator, to use hybrid power, controls the power supply by the UPS converter mode, the UPS inverter mode, and the parallel driving mode in accordance with the charged/discharged status of the battery, thereby allowing a user to use hybrid power in a stable manner.

Description

TECHNICAL FIELD [0001] The present invention relates to a marine hybrid power generator,

More particularly, the present invention relates to a hybrid generator for controlling power in an uninterruptible power supply (UPS) converter mode, a UPS inverter mode, and a parallel operation mode, and a power generator And a control method.

A hybrid vehicle equipped with an engine and a motor / generator has an inverter for supplying driving power of the motor from a battery and a battery for storing power generated from the generator driven by the motor. The hybrid vehicle is operated using the electric power of the generator and / or the battery.

Such a hybrid vehicle is configured to drive a motor by receiving power from a battery or by driving a motor to drive the engine to generate a generator by operating the engine and to supply power generated from the generator to the battery to charge the battery .

Such a hybrid vehicle is equipped with a feedback system that uses the power of the engine and the motor and / or the battery for the purpose of using the power. That is, the motor of the hybrid vehicle serves to drive and crank the engine, and the generator serves to charge the battery. For example, a hybrid vehicle is controlled to supply power from at least one of a generator and batteries using an electronic control unit (ECU) for controlling the state and operation of an engine, an automatic transmission, do. Therefore, the hybrid vehicle supplies power for driving and starting the motor to the generator or battery, and generates kinetic energy for movement.

Korean Registered Patent No. 10-1343453 (Published on Dec. 19, 2013) Korean Patent Publication No. 10-2014-0040557 (published April 03, 2014) Korean Patent Registration No. 10-1043560 (Published on June 22, 2011) Korean Patent Laid-Open No. 10-2009-0090784 (published on Aug. 26, 2009)

It is an object of the present invention to provide a marine hybrid generator and a power control method thereof for utilizing power of a generator and a battery.

Another object of the present invention is to enhance energy efficiency by utilizing an axial power generation system utilizing the rotational force of a screw shaft of a ship or a thermal power generation system using exhaust gas of a ship.

Another object of the present invention is to provide a marine hybrid generator for controlling power supply in various operation modes and a power control method thereof.

It is another object of the present invention to provide a marine hybrid generator using an operation panel for supplying power at various voltage levels to a load and a method of controlling the power thereof.

A hybrid generator for a ship according to an embodiment includes an engine that generates power, a motor that starts the engine, and a generator that receives power from the engine to generate electric power. The generator is powered by the engine A motor / generator including an axial generator for converting rotational energy generated in a shaft for rotating the screw into electric energy; a battery for supplying driving power of the motor and being charged by receiving power generated from the generator; A controller for controlling the generator so as to supply power to the motor from the battery so as to enable bidirectional output by the generator and the battery, And the generator and the battery And a control panel provided with a breaker for preventing electric leakage by receiving voltages adjusted by the controller and outputting voltages at various levels suitable for the load, .

The operation panel according to an embodiment includes an input unit including at least a power switch for turning on and off the marine hybrid generator and an operation mode selection lever for manually operating the operation mode of the controller, A display unit for displaying at least one of a power switch on / off state, a motor drive state, a generator operation state, a battery charge / discharge state, AC / DC power, and voltage / current / frequency level information according to all operations of the marine hybrid generator; And a voltage output unit that is provided as a plurality of outlet plugs and that receives the AC and DC voltages adjusted by the controller and outputs the AC and DC voltages to the load.

The controller according to an embodiment processes the operation mode for controlling the operation of the marine hybrid generator in response to the charging / discharging state of the battery, wherein the operation mode is a mode in which power is generated by the motor / An uninterruptible power supply (UPS) converter mode in which power is supplied to the operation panel after charging the battery, and a UPS inverter mode in which power is supplied from the battery to the operation panel; And a parallel operation mode for controlling power to be supplied to the operation panel.

The controller according to an embodiment may process the selected operation mode when any one of the operation modes is selected by the operation panel.

The shaft generator according to an embodiment includes a case in which a shaft to which rotation is performed by the power is installed, a case that is supported by the shaft to be rotatable in the case and which is stacked along the axial direction of the shaft, And a plurality of second coil members provided on the inner circumferential surface of the case so as to face the first coil member and stacked along the axial direction of the shaft, wherein a magnetic force is generated, and the second coil member And a second duct member provided between the first coil member and the second coil member and connecting the second coil member, and a cooling fan installed at one side of the shaft for cooling the heat generated by the driving of the first coil member Wherein the first coil member is stacked so as to form a gap of a predetermined height, and a stack height of the first coil member formed between the gaps Toward side to the other at one side of the prompt it may increase continuously or discontinuously.

The axial generator according to an embodiment may further include a first duct member provided in the gap and connecting the first coil member, and the first duct member or the second duct member includes a through hole And a plurality of radiation fins radially disposed on the plate so as to guide movement of the air in the case and spaced apart from each other along a circumferential surface of the plate, And a long pin extending from the outer circumferential surface of the plate so as to protrude from the end of the short pin toward the center.

The motor / generator according to an embodiment may further include an exhaust generator for collecting the exhaust gas generated in the engine and converting the collected exhaust gas into electric energy.

The exhaust generator according to an embodiment includes an exhaust gas receiver for collecting exhaust gas generated from the engine, a thermocouple for generating electric energy from waste heat contained in the exhaust gas collected by the exhaust receiver, a DC / DC converter for converting the electric energy generated by the thermocouple into a DC power source for use in various types of electronic equipment of the ship, a charging means for charging the DC power output from the DC / DC converter, And an inverter for converting the DC power supplied from the charging means into AC power and providing it to various electronic equipment of the ship.

The power control method for a marine hybrid generator according to claim 1, further comprising the steps of: determining whether the charge power of the battery remains when the power switch is turned on from the operation panel; Controlling an operation of the engine to operate in an uninterruptible power supply (UPS) converter mode for charging the battery by generating electric power to the motor / generator; and controlling the remaining power of the battery Determining whether the remaining power of the battery is available for use in the operation panel, stopping the engine, and supplying power from the battery to the operation panel if the remaining power of the battery is power available in the operation panel; And controlling the operation of the battery before charging And controlling to operate in a parallel operation mode of supplying power from the motor / generator and the battery to the operation panel when the remaining power of the battery is not available for use on the operation panel, The step of controlling to operate in an uninterruptible power supply (UPS) converter mode may include charging the battery by converting rotational energy generated in a shaft for rotating the screw by the power from the engine into electric energy.

The step of controlling to operate in the UPS (Uninterruptible Power Supply) converter mode according to the embodiment collects the exhaust gas generated in the engine and converts the collected exhaust gas into electric energy to charge the battery .

In the UPS inverter mode according to an embodiment, when the remaining power of the battery is available and the remaining power of the battery is available in the operation panel, the engine is stopped, the DC power of the battery is supplied, And automatically adjusts the converted AC power to a predetermined voltage, and then supplies the power of the voltage adjusted by the operation panel.

The UPS converter mode according to an embodiment is configured to operate the motor / generator when the charge power of the battery remains, to drive the engine to generate the motor / generator, Power can be supplied to charge the battery, and at the same time, AC power can be automatically adjusted to a predetermined voltage to supply power to the operation panel.

The UPS converter mode according to an exemplary embodiment may control operation in the UPS inverter mode when the battery is charged.

In the parallel operation mode according to an embodiment, it is determined whether the engine is in operation if the power of the battery remains and the remaining power of the battery is not the power available in the operation panel. If the engine is not in operation , The engine is operated, the motor / generator is driven, the AC power of the motor / generator and the DC power of the battery are simultaneously supplied to adjust the voltage, and then the voltage adjusted by the operation panel have.

The parallel operation mode according to one embodiment may control operation in the UPS converter mode if the engine is running.

As described above, the marine hybrid generator according to the present invention includes the controller and the operation panel between the generator and the battery, so that the hybrid power, that is, the power of the generator and the battery, can be used.

In order to use hybrid electric power, the marine hybrid generator of the present invention can reliably use hybrid electric power by controlling the power supply in the UPS converter mode, the UPS inverter mode, and the parallel operation mode according to the charging / discharging state of the battery.

Further, the marine hybrid generator of the present invention can supply the uninterruptible power supply and the constant voltage power supply by controlling the hybrid power automatically or manually by the controller.

In addition, the hybrid generator for a ship according to the present invention enhances energy efficiency by utilizing an axial power generation system utilizing the rotational force of a screw shaft of a ship or a thermal power generation system using exhaust gas of a ship.

1 is a block diagram showing the configuration of a marine hybrid generator according to the present invention.
2A to 2C are block diagrams showing an axial generator that can be applied to a marine hybrid generator.
3 is a block diagram showing an exhaust generator utilizing exhaust gas applicable to marine hybrid generators.
4A is a flowchart showing a power control procedure of a marine hybrid generator according to the present invention.
4B is a flowchart illustrating a power control procedure according to a UPS inverter mode of the marine hybrid generator shown in FIG. 4A.
4C is a flowchart illustrating a power control procedure according to the UPS converter mode of the marine hybrid generator shown in FIG. 4A.
FIG. 4D is a flowchart showing a power control procedure according to the parallel operation mode of the marine hybrid generator shown in FIG. 4A. FIG.

It is to be understood that the specific structural or functional descriptions of embodiments of the present invention disclosed herein are presented for the purpose of describing embodiments only in accordance with the concepts of the present invention, May be embodied in various forms and are not limited to the embodiments described herein.

Embodiments in accordance with the concepts of the present invention are capable of various modifications and may take various forms, so that the embodiments are illustrated in the drawings and described in detail herein. However, it is not intended to limit the embodiments according to the concepts of the present invention to the specific disclosure forms, but includes changes, equivalents, or alternatives falling within the spirit and scope of the present invention.

The terms first, second, or the like may be used to describe various elements, but the elements should not be limited by the terms. The terms may be named for the purpose of distinguishing one element from another, for example without departing from the scope of the right according to the concept of the present invention, the first element being referred to as the second element, Similarly, the second component may also be referred to as the first component.

It is to be understood that when an element is referred to as being "connected" or "connected" to another element, it may be directly connected or connected to the other element, . On the other hand, when an element is referred to as being "directly connected" or "directly connected" to another element, it should be understood that there are no other elements in between. Expressions that describe the relationship between components, for example, "between" and "immediately" or "directly adjacent to" should be interpreted as well.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In this specification, the terms " comprises ", or " having ", and the like, are used to specify one or more of the features, numbers, steps, operations, elements, But do not preclude the presence or addition of steps, operations, elements, parts, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the meaning of the context in the relevant art and, unless explicitly defined herein, are to be interpreted as ideal or overly formal Do not.

Hereinafter, embodiments will be described in detail with reference to the accompanying drawings. However, the scope of the patent application is not limited or limited by these embodiments. Like reference symbols in the drawings denote like elements.

1 is a block diagram showing the configuration of a marine hybrid generator according to the present invention.

1, a marine hybrid generator 100 according to the present invention includes an engine 130, a motor / generator 140, a battery 120, and an operation unit 130 for using hybrid electric power using a generator and a battery. A panel 150 and a controller 110. [

The engine 130 is started (DRV) by the motor operation of the motor / generator 140 to generate the power TORQ. The engine 130 transmits the generated power TORQ to the motor / generator 140.

The motor / generator 140 has a motor that drives the engine 130 and a generator that receives power TORQ from the engine 130 to generate electric power. The motor / generator 140 receives the DC power S_DC from the battery 120 through the controller 110, operates the motor, and drives the engine 130 through the motor / generator 140. The motor / generator 140 receives the power TORQ from the engine 130 and operates the generator to generate AC power S_AC. The motor / generator 140 supplies the generated AC power S_AC to the controller 110. The AC power S_AC charges the battery 120 through the controller 110 or supplies the AC power V_AC to the operation panel 150 through the controller 110.

The battery 120 is supplied with the AC power S_AC generated from the motor / generator 140 through the controller 110 and is charged (CHAR). To this end, the battery 120 supplies DC power (S_DC) to the controller 110 to supply the driving power of the motor at the start of the motor / generator 140. The battery 120 also supplies DC power (V_DC) to the operation panel 150 through the controller 110.

The controller 110 controls bidirectional output by the generator 120 and the battery 120 and receives AC and DC powers S_AC and S_DC from the generator 120 and the battery 120 to control the operation panel 150 to a desired voltage level (Uninterruptible Power Supply) function and an AVR (Automatic Voltage Regulator) function so as to be converted into a power source (V_AC,

Specifically, the controller 110 controls to supply the driving power of the motor from the battery 120, receives power (S_AC, S_DC) from at least one of the generator and the battery, In response to the signal IN_C, adjusts the AC and DC voltages V_AC and V_DC of various voltage levels and outputs it to the operation panel 150. The controller 110 receives the AC power S_AC generated from the generator and charges the battery 120 (CHAR). The controller 110 also controls the operation panel 150 in response to the input signal IN_C of the operation panel 150 to display various information (for example, power switch on / off state, motor drive state, Charge / discharge status, AC and DC power, various voltage / current / frequency levels, etc.).

In this embodiment, the controller 110 controls the marine hybrid generator 100 to operate in a UPS converter mode, a UPS inverter mode, and a parallel operation mode. The UPS converter mode controls power to be supplied to the operation panel 150 by charging the battery 120 by generating electric power to the motor / generator 140. The UPS inverter mode is a mode in which the battery 120 is connected to the operation panel 150 And the parallel operation mode controls to supply power from the motor / generator 140 and the battery 120 to the operation panel 150. [

The form of a generator that can be applied to the marine hybrid generator 100 will be described in detail with reference to FIGS. 2A to 2C and FIG.

Details of the operation modes of the controller 110 will be described in detail in the following FIGS. 4A to 4D. These operation modes are automatically processed by the controller 110, or one operation mode is manually selected by the operation panel 150, and in response, the controller 110 can process the corresponding operation mode.

The operation panel 150 receives the adjusted voltages V_AC and V_DC from the controller 110 and outputs voltages at various levels suitable for the load (not shown). The operation panel 150 may further include a circuit breaker (not shown) for preventing electric leakage. In this embodiment, the operation panel 150 includes an input section 152, a display section 154, and a power output section 156. [

The input unit 152 includes, for example, a power switch for turning on and off the operation of the marine hybrid generator 100 and an operation mode selection lever for selecting the operation mode of the controller 110 to operate manually. The display unit 154 is provided, for example, with an LED lamp or an LCD panel and receives control (DISP) of the controller 110 to display various information such as a power switch on / off state, Status of the battery, charge / discharge status of the battery, AC and DC power, various voltage / current / frequency levels, and the like. The power output unit 156 is provided with a plurality of outlet plugs and outputs (AC / DC OUTPUT) AC and DC voltages V_AC and V_DC adjusted by the controller 110, for example. The power output unit 150 may include various voltage levels suitable for a load (not shown), such as AC voltages 110 V, 220 V, 380 V, 440 V, DC voltages 12 V, 24 V, Output (AC / DC OUTPUT).

In order to utilize electrical energy, the hybrid generator 100 for a marine vessel according to the present invention may include a generator 120 and a battery 120 in a UPS converter mode, a UPS inverter mode, and a parallel operation mode according to the charge / .

The shape of the generator that can be applied to the marine hybrid generator 100 will be described in detail with reference to FIGS. 2A to 2C and FIG.

2A to 2C are block diagrams showing an axial generator that can be applied to a marine hybrid generator.

The motor / generator 140 may include an axial generator 200 that converts rotational energy generated in the shaft for rotating the screw by the power from the engine into electric energy.

The axial generator 200 of the marine hybrid generator includes a case 210, a rotor 220, a stator 230, and a cooling fan 240.

The case 210 is provided with a shaft 211 which is rotated by an external power source. Here, the shaft 211 plays a role of receiving mechanical energy for switching to electrical energy from an external power source. In addition, the shaft 211 may be constructed by inserting a bearing for smoothly supporting rotation, and a space is formed in the case 210 so as to accommodate the rotor 220 and the stator.

A rotor (220) is supported by a shaft (211) so as to be rotatable in a case (210). The rotor 220 can be coupled to the shaft 211. When the shaft 211 is rotated by an external power source, the rotor 220 is rotated together.

Here, the rotor 220 includes a plurality of first coil members 221, and may include a first duct member 223.

A plurality of first coil members 221 generate a magnetic force and are stacked along the axial direction of the shaft 211 to obtain an output of the alternator. At this time, the rotor 220 of the present embodiment may be a rotor type rotor, and therefore, the first coil member 221 may have a flat plate shape in which a plurality of depressions and a plurality of protrusions are alternately formed along the outer circumferential surface. In this case, the coil may be wound around the protruding portion of the stacked first coil member 221.

That is, when the first coil member 221 is stacked on the shaft 211, the plurality of protrusions may have a rectangular shape as a whole, wherein the coils are installed in such a manner that the outer surfaces of the plurality of protrusions are wound a plurality of times It can have a closed curve shape. In this case, since a plurality of protrusions are provided along the outer circumferential surface of the first coil member 221, the number of closed curves formed by the coils may be the same as the number of the protrusions.

At least two or more of the plurality of first coil members 221 may be in close contact with each other and a gap 221A having a predetermined height may be formed between the first coil members 221 stacked. That is, in this embodiment, the air can flow through the gap 221A between the first coil members 221 so that the inside of the case 210 can be cooled.

At this time, the first coil member 221 may be stacked such that the gap between the first coil member 221 and the gap 221A is increased toward the other side from the shaft 211. A gap 221A is formed after the first coil member 221 is laminated x times and a gap 221A is formed after the first coil member 221 is stacked x + 221A are formed on the first coil member 221, and then the gap 221A is formed after the first coil member 221 is laminated x + 2a times. That is, the stacking height of the first coil member 221 formed between the gaps 221A may increase continuously or discontinuously from one side of the shaft 211 toward the other side. In this case, the gap 221A may be maintained as an empty space, or a first duct member may be provided to allow air to flow inward.

The first duct member 223 is provided in the gap 221A between the first coil member 221 and connects the first coil member 221. [

Since the first duct member 223 has substantially the same configuration as that of the second duct member 233 included in the stator 230 to be described later, a detailed description thereof will be omitted for the description of the second duct member 233 do.

The stator 230 may be hollowed to allow the rotor 220 to pass therethrough, and may be fixed to the inner circumferential surface of the case 210. For example, the stator 230 may be formed to surround the concentricity of the rotor 220 so that the rotor 220 can be rotated 360 degrees in the hollow of the stator 230. [ The hollow of the stator 230 and the outer shape of the rotor 220 may be formed such that the mutually adjacent surfaces are circular around the rotary shaft (shaft).

Here, the stator 230 may include a plurality of second coil members 231 and a second duct member 233.

The plurality of second coil members 231 may be stacked and spaced apart from each other along the axial direction of the shaft 211 by generating magnetic force.

For example, the second coil member 231 may have slots formed at regular intervals, and a plurality of coils may be wound around each slot.

The second duct member 233 can cool the air whose temperature has risen while passing through the stator 230. This is because if the heat is generated by the driving of the rotor 220, the output density is lowered, so that a flow of the internal air is generated by the cooling fan 240, which is provided to prevent this, The duct member 233 smoothly flows air so that the cooling effect can be improved.

Here, the second duct member 233 is provided between the second coil member 231 and connects the second coil member 231. Here, the second duct member 233 may include a plate 235 and a plurality of radiating fins 237.

The plate 235 may be a circular plate having through holes. The plate 235 may include a plurality of separate cooling holes for cooling the plate 235. The cooling holes may be disposed between a plurality of radiation fins 237 to be described later, Air can be passed through.

The plurality of radiation pins 237 can be formed on both sides of the plate 235 as a structure for guiding the movement of air. Such,

The plurality of radiation pins 237 can support the second coil member 231 by contacting the second coil member 231. In the present embodiment, a plurality of radiation fins 237 may be radially provided on the plate 235 so as to be spaced apart from each other along the circumferential surface of the plate 235.

In addition, the plurality of radiation pins 237 may include a short pin 237B and a long pin 237A.

The short pin 237B guides the movement of air together with the long pin 237A and can be directed from the outer peripheral surface of the plate 235 to the center. The long pin 237A may be spaced apart from the short pin 237B and may protrude from the outer circumferential surface of the plate 235 toward the center so as to protrude from the end of the short pin 237B.

Here, unlike the short pin 237B, the long pin 237A is elongated, and the plate 235 is equally divided so that the flow of air is divided. For example, when the long pins 237A are provided in N (natural numbers) on one surface of the plate 235, the flow of air is divided into N strands. As the width of the air moves, the speed increases. Therefore, a plurality of short pins 237B are provided between the long pins 237A to increase the moving speed of the air so that the flow of air reaches the outer peripheral surface of the plate 235 .

The second coil member 231 of the second duct member 233 on the lower side or the radiating fin 237 of the radiating fin 237 of the second duct member 233 on the upper side of the shaft 211, At least one of the heights can be increased. For example, in the case where the cooling fan 240 is provided at the upper end of the case 210, since the lower portion may not smoothly cool the air relative to the upper portion, the cooling efficiency of the lower portion may be improved. The height of at least one of the second coil member 231 or the radiating fin 237 on the lower side can be increased compared to the second duct member 233 on the upper side of the radiator 211 to increase the flow of air. Accordingly, the amount of air passing through the second duct member 233 is formed on the lower side, so that the cooling effect of the upper and lower ducts can be induced to be uniform.

In addition, the number of the second duct members 233 arranged in a row in the longitudinal direction of the shaft 211 may increase as the number of the radiation pins 237 increases from one side of the shaft 211 to the other side.

The second duct member 233 on the upper side is formed linearly from the outer circumferential surface of the plate 235 to the central portion and the second duct member 233 on the lower side is formed into a wave shape from the outer peripheral surface of the plate 235 to the central portion. Shape.

In this way, since the air moves along the plurality of radiation pins 237 to induce the cooling of the air, the flow of air in the limited space can be increased and the cooling effect can be improved.

The cooling fan 240 is installed at one end or both ends of the case 210 so as to cool the heat generated by the driving of the rotor 220. When the rotor 220 is rotated at a high speed in a state where the rotor 220 is supported by the shaft 211, the internal temperature of the rotor 220 is increased by continuous driving of the rotor 220, .

Accordingly, the cooling fan 240 is rotated so that the rotor 220 is rotated at the same speed as the initial speed so that the high output can be continuously generated.

For example, the cooling fan 240 is rotatably supported by the shaft 211 on the same axis as the rotor 220, and the cooling fan 240 rotates in conjunction with the rotation of the rotor 220 Air can be forcedly circulated so that the air in the case 210 flows through the space between the stator 230 and the case 210 and the gap between the rotor 220 and the stator 230, As shown in Fig.

At this time, the wind generated from the cooling fan 240 moves, or the air around the rotor 220 raised by the driving of the rotor 220 is forcibly moved by the cooling fan 240, The air at the elevated temperature may be cooled as it is joined with the ambient air in the process of passing through the space between the case 230 and the case 210. [

In addition to axial generators, other types of generators can be applied to marine hybrid generators.

3 is a block diagram showing an exhaust generator utilizing exhaust gas applicable to marine hybrid generators.

3, the exhaust generator includes an exhaust gas receiver 310, a thermocouple 320, a DC / DC converter 330, a capacitor 340, and an inverter 350 .

First, the exhaust receiver 310 collects exhaust gas generated in the engine 300 that propels the ship.

The thermocouple 320 generates electrical energy from the pyroelectric heat contained in the exhaust gas collected by the exhaust receiver 310.

The DC / DC converter 330 converts the electric energy generated by the thermocouple 320 into a DC power having a voltage usable in the load 360 and outputs the DC power. As an example, the load 360 may include various electronic equipment of the ship.

The capacitor 340 charges the DC power output from the DC / DC converter 330.

The inverter 350 converts the DC power supplied from the capacitor 340 into AC power.

The operation of the embodiment of the present invention will be described in detail with reference to the accompanying drawings.

Referring to FIG. 3, when exhaust gas is generated in the main engine 300 that propels a ship, the exhaust gas is collected in the exhaust receiver 310.

In this case, the thermocouple 320 is connected to the exhaust receiver 310, and the thermocouple 320 is arranged such that the temperatures of the two contact points of the metal wires (copper wire and wire wire) And is connected to the exhaust receiver 310 to generate a direct current.

The DC current generated in the thermocouple 320 is converted into DC power from the DC / DC converter 330 and is output.

The converted DC power may be once converted to AC power through the inverter 350 after being charged in the capacitor 340. [

4A to 4D, a method of controlling the operation modes of the marine hybrid generator according to the present invention will be described in detail.

4A is a flowchart showing the power control procedure of the hybrid generator for marine according to the present invention, FIG. 4B is a flowchart showing a power control procedure according to the UPS inverter mode of the marine hybrid generator shown in FIG. 4A, 4A is a flowchart showing a power control procedure according to a UPS converter mode of the marine hybrid generator shown in FIG. 4A, and FIG. 4D is a flowchart showing a power control procedure according to a parallel operation mode of the marine hybrid generator shown in FIG. 4A . These procedures are control programs that are processed by the controller 110, and these control programs are stored in an internal memory (not shown) of the controller 110. [

Referring to FIG. 4A, when the power switch for operating the marine hybrid generator 100 is turned ON from the operation panel 150 in step S400, it is determined whether the power of the battery 120, that is, .

As a result of the determination, if the charging power of the battery 120 is not left, the procedure goes to step S450 to control the engine 130 to drive the motor / generator 140 to generate electric power S_AC And supplies the generated power S_AC to the battery 120 via the controller 110 to charge the battery 120 (CHAR). At this time, the controller 110 receives the generated power S_AC and adjusts and outputs the AC voltage V_AC to the operation panel 150.

However, if the charging power of the battery 120 remains as a result of the determination, the procedure proceeds to step S420 to determine whether the remaining power of the battery 120 is available power on the operation panel 150. [

As a result of the determination, if the remaining power of the battery 120 is available for use on the operation panel 150, the procedure goes to step S430 to stop the engine 130 and to transfer the battery 120 from the battery 120 to the operation panel 150 And controls operation in a UPS inverter mode that supplies power (S_DC, V_DC).

The controller 110 supplies electric power to the motor / generator 140 and charges the battery 120, and when the remaining power of the battery 120 is not the power available in the operation panel 150, And controls the operation in a parallel operation mode of supplying power (V_AC, V_DC) to the operation panel 150 by receiving power (S_AC, S_DC) from the generator 140 and the battery 120 and adjusting the voltage.

Specifically, in the UPS inverter mode (S430), if the power of the battery 120 remains and the remaining power is available in the operation panel 150 as shown in FIG. 4B, the engine 130 is stopped in step S432 The controller 110 receives the DC power S_DC of the battery 120 in step S434 and converts the DC power S_DC into AC power in step S436. In step S438, the controller 110 automatically adjusts the AC power to the set voltage. Subsequently, in step S440, power supplies V_AC and V_DC are supplied to the operation panel 150. [

The UPS converter mode (S450) operates the motor / generator (140) in step S452 if the charging power of the battery (120) remains, as shown in FIG. 4C, (DRV). The motor / generator 140 is generated using the power TORQ of the engine 130 in step S456.

In step S458, the controller 110 receives the AC power S_AC generated from the motor / generator 140 and charges the battery 120 using the AC power S_AC in step S460. At this time, the controller 110 automatically adjusts the AC power S_AV to a set voltage and supplies the power sources V_AC and V_DC to the operation panel 150. Subsequently, when the battery 120 is charged in step S462, the controller 110 controls the operation in the UPS inverter mode (S430) in step S464.

In the parallel operation mode (S470), when the power of the battery 120 remains and the remaining power is not the power available in the operation panel 150, that is, when the remaining power of the battery 120 reaches the discharge limit, As shown in Fig. 4D, in step S472, it is determined whether the engine 130 is in operation. As a result of the determination, if the engine 130 is running, the procedure goes to step S474 to control the operation in the UPS converter mode. If the engine 130 is not running, the engine 130 is operated in step S476, And drives the motor / generator 140 in step S478.

The AC power S_AC of the motor / generator 140 and the DC power S_DC of the battery 120 are simultaneously supplied at step S480. Subsequently, in step S482, the voltages V_AC and V_DC are adjusted by the combined operation of the electric power of the generator and the battery 120, and then the voltage adjusted by the operation panel 150 is outputted. Therefore, the operation panel 150 can supply power of various voltage levels suitable for the load through the voltage output unit 156. [

The apparatus described above may be implemented as a hardware component, a software component, and / or a combination of hardware components and software components. For example, the apparatus and components described in the embodiments may be implemented within a computer system, such as, for example, a processor, a controller, an arithmetic logic unit (ALU), a digital signal processor, a microcomputer, a field programmable array (FPA) A programmable logic unit (PLU), a microprocessor, or any other device capable of executing and responding to instructions. The processing device may execute an operating system (OS) and one or more software applications running on the operating system. The processing device may also access, store, manipulate, process, and generate data in response to execution of the software. For ease of understanding, the processing apparatus may be described as being used singly, but those skilled in the art will recognize that the processing apparatus may have a plurality of processing elements and / As shown in FIG. For example, the processing unit may comprise a plurality of processors or one processor and one controller. Other processing configurations are also possible, such as a parallel processor.

The software may include a computer program, code, instructions, or a combination of one or more of the foregoing, and may be configured to configure the processing device to operate as desired or to process it collectively or collectively Device can be commanded. The software and / or data may be in the form of any type of machine, component, physical device, virtual equipment, computer storage media, or device , Or may be permanently or temporarily embodied in a transmitted signal wave. The software may be distributed over a networked computer system and stored or executed in a distributed manner. The software and data may be stored on one or more computer readable recording media.

The method according to an embodiment may be implemented in the form of a program command that can be executed through various computer means and recorded in a computer-readable medium. The computer-readable medium may include program instructions, data files, data structures, and the like, alone or in combination. The program instructions to be recorded on the medium may be those specially designed and configured for the embodiments or may be available to those skilled in the art of computer software. Examples of computer-readable media include magnetic media such as hard disks, floppy disks and magnetic tape; optical media such as CD-ROMs and DVDs; magnetic media such as floppy disks; Magneto-optical media, and hardware devices specifically configured to store and execute program instructions such as ROM, RAM, flash memory, and the like. Examples of program instructions include machine language code such as those produced by a compiler, as well as high-level language code that can be executed by a computer using an interpreter or the like. The hardware devices described above may be configured to operate as one or more software modules to perform the operations of the embodiments, and vice versa.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. For example, it is to be understood that the techniques described may be performed in a different order than the described methods, and / or that components of the described systems, structures, devices, circuits, Lt; / RTI > or equivalents, even if it is replaced or replaced.

Therefore, other implementations, other embodiments, and equivalents to the claims are also within the scope of the following claims.

Claims (15)

A hybrid ship generator comprising:
An engine 130 that generates power;
And a generator for generating power by receiving power from the engine, wherein the generator converts rotational energy generated in a shaft rotating the screw by the power from the engine into electric energy A motor / generator (140) including an axial generator (200) for collecting the exhaust gas generated from the engine and an exhaust generator (300) for converting the collected exhaust gas into electric energy;
A battery 120 that is charged by supplying driving power of the motor and receiving power generated from the generator;
Wherein the control unit controls the motor / generator and the battery so as to enable bidirectional output by the generator and the battery, controls the motor to supply driving power to the motor, and supplies power generated from the generator to the battery A controller (110) for receiving power from at least one of the generator and the battery, adjusting the voltage and outputting the voltage;
And an operation panel (150) having a circuit breaker for preventing electric leakage by receiving voltages adjusted by the controller and outputting voltages of various levels suitable for the load,
The controller processes an operation mode for controlling the operation of the marine hybrid generator in response to the charging / discharging state of the battery;
Wherein the operation mode comprises:
An uninterruptible power supply (UPS) converter mode for controlling power supply to the operation panel after power is generated by the motor / generator to charge the battery;
A UPS inverter mode for controlling power supply from the battery to the operation panel;
And a parallel operation mode for controlling power supply from the motor / generator and the battery to the operation panel,
In the UPS (Uninterruptible Power Supply) converter mode,
A rotational energy generated in a shaft for rotating the screw by the power from the engine is converted into electric energy to charge the battery and exhaust gas generated in the engine is converted into electric energy, A hybrid generator for a ship. The method according to claim 1,
The operation panel 150 includes:
An input unit 152 having at least a power switch for turning on and off the marine hybrid generator, and an operation mode selection lever for manually operating the operation mode of the controller;
The controller is controlled to control at least one of the power switch on / off state, the motor drive state, the generator operation state, the battery charge / discharge state, the AC and DC power, and the voltage / current / frequency level information according to all operations of the marine hybrid generator A display unit 154 indicating one;
And a voltage output unit (156) provided as a plurality of outlet plugs for receiving the AC and DC voltages adjusted by the controller and outputting them to a load. delete 3. The method of claim 2,
The controller (140)
Wherein the control unit processes the selected operation mode when any one of the operation modes is selected by the operation panel. The method according to claim 1,
The shaft generator (200)
A case 210 on which a shaft for rotating by the power is installed;
A plurality of first coil members (221) supported by the shaft so as to be rotatable in the case, the first coil members (221) generating magnetic force and stacking along the axial direction of the shaft;
And a plurality of second coil members (231) provided on the inner circumferential surface of the case so as to face the first coil member and stacked along the axial direction of the shaft, wherein a magnetic force is generated, And a second duct member (233) provided at the second duct member and connecting the second coil member. And
A cooling fan 240 installed on one side of the shaft for cooling the heat generated by driving the first coil member,
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The first coil member 221 is stacked so as to form a gap of a predetermined height, and the stack height of the first coil member formed between the gaps is continuously or discontinuously increased from one side of the shaft to the other side. generator. 6. The method of claim 5,
And a first duct member (223) provided in the gap and connecting the first coil member,
The first duct member (223) or the second duct member (233)
And a plurality of radiation fins (237) radially disposed on the plate so as to guide movement of the air in the case, the spacers being spaced from each other along a circumferential surface of the plate,
The plurality of radiation pins (237)
A short pin 237B extending from the outer circumferential surface of the plate toward the center thereof and a long pin 237A spaced apart from the short pin and protruding from the end of the short pin toward the center on the outer circumferential surface of the plate. delete The method according to claim 1,
The exhaust generator (300)
An exhaust gas receiver 310 for collecting exhaust gas generated from the engine;
A thermocouple 320 for generating electrical energy from the waste heat contained in the exhaust gas collected by the exhaust receiver;
A DC / DC converter 330 for converting the electrical energy generated by the thermocouple into a DC power having a voltage usable in various types of electronic equipment of the ship;
Charging means for charging a DC power outputted from the DC / DC converter;
An inverter 350 for converting the DC power supplied from the charging means into AC power and providing it to various electronic equipments of the ship,
And a hybrid generator for a ship. A power control method for a marine hybrid generator as set forth in claim 1,
(S410) if the power switch is turned on from the operation panel to determine whether the remaining charge power of the battery remains;
(S450) controlling the engine to operate in an uninterruptible power supply (UPS) converter mode for charging the battery by generating power to the motor / generator when the charge power of the battery is not left;
Determining whether remaining power of the battery is available power on the operation panel when charging power of the battery remains, (S420);
Stopping the engine and controlling the UPS to operate in a UPS inverter mode for supplying power from the battery to the operation panel if the remaining power of the battery is available for use on the operation panel;
Controlling to operate in a parallel operation mode of supplying power from the motor / generator and the battery to the operation panel, when the remaining charge of the battery remains and the remaining power of the battery is not the power available in the operation panel (S470)
The step S450 of controlling the UPS to operate in the uninterruptible power supply (UPS)
Charging a battery by converting rotational energy generated in a shaft for rotating the screw by the power from the engine into electric energy;
Collecting exhaust gas generated from the engine, and converting the collected exhaust gas into electric energy to charge the battery; And
And converting the exhaust gas generated by the engine into electrical energy to provide a voltage usable in the operation panel. delete 10. The method of claim 9,
(S430) controlling the UPS to operate in the inverter mode;
When the remaining power of the battery remains and the remaining power of the battery is available in the operation panel, the engine is stopped (S432)
(S434) and converts the AC power into AC power (S436)
The converted AC power is automatically adjusted to a set voltage (S438)
(S440) the power of the voltage adjusted by the operation panel (S440). 12. The method of claim 11,
(S450) controlling the UPS converter mode to operate;
If the battery charge power remains, the motor / generator is operated (b 452)
The motor / generator is generated (S456) by operating the engine (S454), then the AC power generated from the motor / generator is supplied (S458), the battery is charged (S460), and the AC power is automatically adjusted And the power is supplied to the operation panel. 13. The method of claim 12,
(S450) controlling the UPS converter mode to operate;
And controlling the operation of the UPS in the inverter mode when the battery is charged. The method according to claim 12 or 13,
The step S470 of controlling the operation in the parallel operation mode includes:
If the power of the battery remains and the remaining power of the battery is not the power available in the operation panel,
It is determined whether the engine is in operation (S472)
If the engine is not operating, the engine is operated (S476)
Drives the motor / generator (S478)
Wherein the controller receives the AC power of the motor / generator and the DC power of the battery at the same time (S480), adjusts the voltage, and then outputs the adjusted voltage to the operation panel. 15. The method of claim 14,
The step S470 of controlling the operation in the parallel operation mode includes:
And controlling operation in the UPS converter mode when the engine is in operation (S474).

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