KR101422508B1 - Steering apparatus for ship and control method threrof - Google Patents

Abstract

A ship comprising a deck machine is disclosed. A ship including a deck machine according to an embodiment of the present invention includes a motor-driven sun mower, an electric mooring winch, a frequency converter for converting the frequency of a power supplied to the electric mower or the electric mooring winch, A pole number conversion unit for converting the number of poles, and a control unit for controlling the pole number conversion using the frequency conversion or pole number conversion unit using the frequency conversion unit to adjust the speeds of the electric winch or the electric mooring winch.

Description

STEERING APPARATUS FOR SHIP AND CONTROL METHOD THREROF

The present invention relates to a ship, and more particularly, to a ship including a deck machinery having a windlass and a mooring winch.

Deck machinery is generally installed on ships. Deck machinery refers to machines that control anchors and ropes for berthing and mooring. More specifically, a machine installed on the deck to handle anchor, anchor cable and rope is referred to as a windlass and a mooring winch.

Buffalo is a machine for handling an anchor for anchoring at a port. A lift is a machine used to throw or raise an anchor. Anchor cable is lifted or lowered by an electric motor or an internal combustion engine to raise or lower anchor.

The mooring winch is a machine for handling the rope to secure the vessel to the dock. The mooring winch is wound or unwound by wire rope or ordinary rope on a cylindrical drum. The rope is wound or unwound by rotating the drum by an electric motor or an internal combustion engine.

When deck machinery is separated by a drive system, there are hydraulic, steam, pneumatic, and electric.

Electric type is mainly used for container ships. The electric pole-changing type is a method of changing the number of poles of the motor to adjust the speed up or down according to the rope tension. I usually use three speed electric motors.

The frequency converting type is composed of one speed motor and a frequency converter. The biggest feature is the ability to adjust the speed of the motor by changing the frequency of the voltage, thus enabling step-less speed control like hydraulic. However, there is a disadvantage that the frequency conversion method is more expensive than the polynomial conversion method.

In case of electric type, installation work is easier than hydraulic type, which has the advantage of reducing work productivity. Therefore, as the environmental regulations become stronger, there is a tendency to apply to vessels such as Crude Oil Tanker (COT) and Liquefied Natural Gas Carrier (LNGC).

However, unlike the polarity conversion method, which is mainly used for container lines, the frequency conversion method required for other types of devices has a problem in application because it requires a large installation cost compared to the specifications.

Recently, there is a demand for a deck machine which can reduce the installation cost of vessels such as crude oil carriers and liquefied natural gas carriers, and selectively use polarity conversion control and frequency conversion control for sailboats and mooring winches as needed.

An embodiment of the present invention is to provide a ship including a deck machine capable of selectively using a frequency conversion control and a pole number conversion control while controlling installation costs and mooring winches.

According to an aspect of the present invention, Electric mooring winch; A frequency converter for converting a frequency of a power source supplied to the electric winch or the electric mooring winch; A pole number converter for converting the number of poles of the electric winch or the electric winch; An input unit for receiving an operation command from the user for the electric sailboat and the electric mooring winch; And at least one of the electric winch and the electric mooring winch is a device for simultaneously performing the frequency conversion control of the electric winch and the electric mooring winch on the basis of an operation command inputted to the electric winch and the electric mooring winch inputted through the input unit, And a control unit for selectively performing one of the frequency conversion control and the other of the pole number conversion control and the pole number conversion control of the electric winch and the electric mooring winch at the same time. May be provided.

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The electric winch includes a chain lifter for winding and uncoiling an anchor chain connected to the anchor, and an electric motor for driving the chain lifter. The electric mooring winch includes a winding drum for winding or unwinding the mooring rope, Wherein the frequency converting unit converts the number of poles of the electric motor of the lift or mooring winch and the pole number converting unit converts the number of poles of the electric motor of the lift or mooring winch into Can be converted.

Further, the electric motor of the electric winch and the electric motor of the electric mooring winch may be a three-phase AC motor.

The electric mooring winch includes a plurality of electric winches and a plurality of electric mooring winches. The first switching unit switches the power to be selectively supplied to the plurality of electric winches, and the second switching unit switches the power to be selectively supplied to the plurality of electric mooring winches. And a switching unit.

According to another aspect of the present invention, there is provided a lifting device comprising: a chain lifter for winding and unfastening an anchor chain connected to an anchor; and a lifter having an electric motor for driving the chain lifter; A winding drum for winding or unwinding the mooring rope; and a mooring winch having an electric motor for driving the winding drum; A single frequency converter for converting the frequency of the power supplied from the power supply network to the electric motor of the windloader or mooring winch; An inverter unit for converting power from the power supply network into AC power; A single pole number conversion unit for causing the alternating current power output from the inverter unit to be supplied to the electric motor of the hoisting or mooring winch and converting the number of poles of the electric motor of the hoisting or mooring winch; A first switching unit that is switched so that the power converted by the frequency converting unit is selectively supplied to the hoist or mooring winch; A second switching section that is switched by the inverter section and is switched so that the alternating current power supplied via the pole number conversion section is selectively supplied to the lift or mooring winch; An input unit for receiving an operation command from the user for the windloader and the mooring winch; And a controller for performing frequency conversion using the frequency converter and pole number conversion using the pole number converter to adjust the rotation speed of the electric motor of the sailboat and the mooring winch, And the mooring winch and the mooring winch are simultaneously frequency-converted and controlled based on an operation command for the mooring winch, and at least one of the lifting winch and the mooring winch is subjected to frequency conversion control while the other is subjected to pole- Wherein the decking machine and the mooring winch are simultaneously subjected to poling conversion control.

The pole number conversion unit may include a plurality of relays, and each of the relay units may connect an output terminal of the inverter unit and an input terminal of the electric motor of the counterweight or mooring winch, respectively.

The first switching unit may include a first switching switch provided on a power supply line between the frequency converting unit and the headlamp, and a second switching switch provided on a power supply line between the frequency converting unit and the mooring winch, 2 switching section may include a first switching switch provided on a power supply line between the pole number converting section and the counterweight and a second switching switch provided on a power supply line between the pole number converting section and the mooring winch.

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The embodiment of the present invention is provided with a frequency converter and a pole number converter that can be used in common and is configured to selectively use the frequency conversion control and the pole number conversion control in controlling the weft and mooring winches, It is possible to diversify the speed control for the lift device and the mooring winch.

1 is a block diagram of a ship including a deck machine according to an embodiment of the present invention.
2 is a view for explaining the arrangement of a lifting hoist and a mooring winch in a ship including a deck machine according to an embodiment of the present invention.
3 is a configuration view of a mooring winch in a ship including a deck machine according to an embodiment of the present invention.
FIG. 4 is a view illustrating the configuration of a lightning bolt in a ship including a deck machine according to an embodiment of the present invention.
5 is a control block diagram of a ship including a deck machine according to an embodiment of the present invention.
FIG. 6 is a view for explaining the principle of conversion between four poles and two poles in order to explain the principle of pole-number conversion in the pole-number conversion unit shown in FIG.
FIG. 7 is a diagram for explaining frequency conversion control of a lifter in a ship including a deck machine according to an embodiment of the present invention; FIG.
8 is a view for explaining frequency conversion control of a mooring winch in a ship including a deck machine according to an embodiment of the present invention.
FIG. 9 is a diagram for explaining the pole-number conversion control of a sailboat in a ship including a deck machine according to an embodiment of the present invention.
10 is a view for explaining the pole-number conversion control of a mooring winch in a ship including a deck machine according to an embodiment of the present invention.
FIG. 11 is a view for explaining frequency conversion control of a sailboat and a mooring winch in a ship including a deck machine according to an embodiment of the present invention.
FIG. 12 is a view for explaining the pole-number conversion control of a bilateral ambulance and a mooring winch in a ship including a deck machine according to an embodiment of the present invention.
13 is a control block diagram of a ship including a deck machine according to another embodiment of the present invention.
FIG. 14 is a view for explaining the frequency conversion control of a lifter and the pole number conversion control of a mooring winch in a ship including a deck machine according to another embodiment of the present invention.
FIG. 15 is a view for explaining that a ship including a deck machine according to another embodiment of the present invention performs frequency conversion control of a mooring winch while simultaneously controlling the number of winds of a ship.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. The embodiments described below are provided by way of example so that those skilled in the art will be able to fully understand the spirit of the present invention. The present invention is not limited to the embodiments described below, but may be embodied in other forms. In order to clearly explain the present invention, parts not related to the description are omitted from the drawings, and the width, length, thickness, etc. of the components may be exaggerated for convenience. Like reference numerals designate like elements throughout the specification.

The sailboats and mooring winches described below are electric (or electric) sailboats and mooring winches that use a motor as a driving source.

1 is a block diagram of a ship including a deck machine according to an embodiment of the present invention. 2 is a view for explaining the arrangement of a lifting hoist and a mooring winch in a ship including a deck machine according to an embodiment of the present invention.

Referring to FIGS. 1 and 2, when the ship 1 is moored at the seaport of the harbor, the ship 1 is moored by the mooring winch 10.

The mooring winch 10 is installed on the deck 2 of the ship and the mooring rope 11 is wound on the mooring winch 10.

The mooring winch 10 is used to release the mooring rope 11 wrapped around the mooring winch 10 when the ship 1 rides on the seaport of the port and fix one end to the bit B provided on the pier, So that the mooring rope 11 is tightened and then the vessel 1 is moored in the harbor through the tethered mooring rope 11.

The mooring winch 10 is determined by the type of ship, the size of the ship, etc., or its capacity and quantity position, and is located in the forward portion of the main deck 2, which is one of the essential devices in most ships. When it is determined that the mooring winch 10 alone is insufficient, the mooring winch 10 is additionally installed at the stern of the ship (or in the middle of the hull) so that the mooring winch 10 is stably fixed to the seam of the port.

3 is a configuration view of a mooring winch in a ship including a deck machine according to an embodiment of the present invention.

3, the mooring winch 10 includes a winding drum 12 for winding or unwinding the mooring rope 11 for mooring or unloading, an electric motor 146 (not shown) for driving the winding drum 12, ).

The electric motor can be, for example, an induction motor or a permanent magnet synchronous motor. The mooring winch shown in Fig. 1 includes a gear box 14 provided between the winding drum 12 and the electric motor 13. Fig. The winding drum 12 is supported by a gear box 14 and a warping head 15. It is also possible to make the gear box 14 unnecessary by including the direct drive type winding drum 12 in accordance with the size of the winding drum 12, the size of the electric motor 13, and the size of the winding drum 12.

The mooring winch 10 rotates the winding drum 12 by the rotational force as the electric motor 13 is rotated by the supply of power and the mooring rope 11 wrapped around the winding drum 12 is unwound or wound . This causes the ship to moor at the port.

Referring again to FIGS. 1 and 2, when the ship is moored on water while preventing the ship 1 from being floated by a bird or the like at a fixed position, the ship is anchored by the lift 20.

The pickaxe 20 is located at the bow on the deck 2, one of the necessary devices in the vessel 1 (see FIG. 2)

The anchor 21 of the headlamp 20 is connected to the ship 1 by an anchor chain. The anchor 21 is installed in the recess portion 3 of the vessel 1.

The sailboat 20 releases the anchor chain wound on the sailboat 20 when the ship 1 is anchored to lower the anchor 21 to anchor the ship. In other words, the headlamp 20 is lifted or lowered by an electric chain, an internal combustion engine or the like and connected to the anchor 21 to throw or lift the anchor 21. The anchor 21, which is a heavy material, is buried under the water in a state of being submerged in water, thereby preventing the ship from being washed away.

FIG. 4 is a view illustrating the configuration of a lightning bolt in a ship including a deck machine according to an embodiment of the present invention.

4, the lifter 20 includes an anchor chain 22 connected to an anchor 21 for anchoring, a chain lifter 23 for hoisting or unwinding the anchor chain 22, And an electric motor 24 for rotating the lifter 23.

The anchor chain 22 wrapped around the chain lifter 23 is pulled up or unwound by the rotation of the chain lifter 23 as the electric motor 24 is rotated by the power supply . This causes the ship to berth in the port.

The mooring winch 10 included in the deck machine according to the embodiment of the present invention can perform the mooring operation at the three-speed speed by the pole number conversion control and can perform the stepless speed change by the frequency conversion control, You can do the work.

Further, the headlamp 20 included in the deck machine according to the embodiment of the present invention can perform the anchoring operation at the three-speed speed by the pole-number conversion control, and the continuously variable transmission can be performed by the frequency conversion control, Anchoring operation can be performed.

In the embodiment of the present invention, the electric motors of the windloaders and the electric motors of the mooring winches may be three-phase alternating current motors capable of converting the number of poles.

Such an alternating-current electric motor forms a magnetic field rotating in the electric motor by an AC power source applied from the outside, and the driving speed of the electric motor is changed according to the rotation speed of the rotating magnetic field.

Generally, the relationship between the rotational speed of the motor, the output frequency of the inverter, and the number of poles of the motor is given by the following equation [1].

N = 120f / p - Equation [1]

Here, N is the driving speed (rpm) of the motor, f is the output frequency (Hz) of the inverter, and p is the number of poles of the motor.

As shown in Equation [1], the rotational speed of the motor can be adjusted by changing the output frequency or the number of poles of the inverter.

The rotation speed of the motor is proportional to the output frequency of the inverter and inversely proportional to the number of poles of the motor. That is, the rotation speed of the motor increases as the output frequency of the inverter increases, as the number of poles of the motor decreases, as the output frequency of the inverter decreases, and as the number of poles of the motor increases.

As described above, to speed up or slow down the motor, it is possible to change the frequency or the number of poles. In polar number conversion, the number of poles can only be converted to an even number, so speed control is not finely controlled like frequency conversion.

Therefore, in the embodiment of the present invention, the frequency conversion control method is used when precise speed control is required, and the pole number conversion control method is used otherwise.

In the embodiment of the present invention, the frequency conversion control for converting the frequency of the power supplied to the mooring winch 10 or the electric motors 13 and 24 of the headlamp 20 or the number of poles of the electric motors 13 and 24 And controls the speed of the electric motors 13 and 24 through the pole-number conversion control. As the speeds of the electric motors 13 and 24 are controlled, the rotational speeds of the winding drum 12 or the chain lifters 23 connected thereto are varied to change the anchoring operation speed and the speed of the mooring operation.

5 is a control block diagram of a ship including a deck machine according to an embodiment of the present invention.

5, the deck machine includes a first switching unit 100, a second switching unit 110, a frequency conversion unit 120, an inverter unit 130, a pole number conversion unit 140, an input unit 150, And a control unit 160.

The first switching unit 100 is connected to a power source (not shown) supplied to the plurality of headlamps 20a-20n so that power can be selectively supplied to some of the plurality of headlamps, such as the first headlamp 20a through the nth headlamp 20n, Lt; / RTI > The first switching unit 100 causes electric power to be supplied to the electric motor 24 of the first lifted handler 20a through the n th herding maneuver 20n.

The second switching unit 110 is provided with a plurality of mooring winches 10a-10n (10a-10n) such that power can be selectively supplied to some of the mooring winches of the plurality of mooring winches such as the first mooring winch 10a to the nth mooring winch 10n ) Of the power supply. The second switching unit 110 allows power to be supplied to the electric motor 13 of the mooring winch which is switched on among the first mooring winch 20a to the nth mooring winch 20n.

The first switching unit 100 and the second switching unit 110 may each include a dip switch. The DIP switch is a series of ON-OFF switches on the DIP, allowing the user to freely select the function on the circuit board without changing the hardware. When the first switching unit 100 and the second switching unit 110 are composed of dip switches, the aft or mooring winch to be operated is not selected by the control signal of the control unit 160 but is selected by manual operation of the user .

The frequency converter 120 includes an inverter which is installed to supply electric power to the lift 20 or the mooring winch 10.

The frequency converter 120 is connected to the power supply network 170, which may be a power supply network of the ship, for example. The frequency converting unit 120 converts the power supplied by the power supply network 170 to an AC power of a desired frequency and supplies the converted AC power to the hoist 20 or the electric motors 13 and 24 of the mooring winch 10. [ The winemaker 20 or the mooring winch 10 is operated.

The frequency converter 120 converts the frequency of the alternating current power supplied to the electric motors 13 and 24 of the sailboiler 20 or the mooring winch 10 so that the electric motor 13 , 24). When the power supplied by the power supply network 170 causes an AC voltage, the frequency converter 120 converts the DC power into an AC power having a desired frequency.

The frequency conversion unit 120 may be driven by a speed control scheme that limits the maximum tension of the anchor chain 22 or the mooring rope 21, which may be formed by speed control, to avoid dangerous situations.

The inverter unit 130 is connected to the power supply network 170, which may be a power supply network of the ship like the frequency converter 120. The inverter unit 130 converts the power supplied by the power supply network 170 to AC power, AC power is supplied to the electric motor (13, 24) of the lift device (20) or the mooring winch (10) to operate the lift device (20) or the mooring winch (10). The inverter unit 130 converts the power supplied from the power supply network 170 into a direct current power and then converts it into an alternating current power in the case of an alternating current source.

The pole number conversion unit 140 converts the pole numbers of the electric motors 24 of the first sunk building 20a to the nth sunk building 20n or the pole number of the electric motor 24 of the first mooring winch 10a to the nth mooring winch 10n And the number of poles of the motor 13 is changed.

In the following description, the pole number conversion unit 140 converts the number of poles of the electric motors 13 and 24.

FIG. 6 is a view for explaining the principle of pole-number conversion between 4 poles and 2 poles in order to explain the pole-number conversion principle of the pole-number conversion unit shown in FIG.

Referring to FIG. 6, (a) shows the current flow in the quadrupole state, and (b) shows the current flow in the bipolar state.

The output terminal of the pole number conversion unit 140 corresponds to the phases A, B and C of the electric motor 13, 24 of the weft 20 or the mooring winch 10, respectively.

The current outputted from the "+" terminal of the A phase is divided in parallel and inputted to the electric motors 13 and 24, so that four-pole rotation is performed in the electric motors 13 and 24 After forming the magnetic field, it is input to the "-" terminal of the A phase of the frequency conversion unit 120 again.

However, as shown in Fig. 6B, when the currents outputted from the "+" terminal of the A phase are input to the electric motors 13, 24 without splitting in parallel to form a rotating magnetic field The number of poles thereof is reduced to half, and the electric motors 13 and 24 are in a bipolar state.

Other B and C phases will not be described since the same description as A phase will be repeated.

The pole number conversion unit 40 connects the output end of the inverter unit 130 and the input end of the electric motors 13 and 24 so that the motor windings corresponding to the corresponding poles are formed.

To this end, the pole number conversion unit 140 includes three relay switches which are the same as the number of phases, and switches three relay switches to form motor windings corresponding to desired pole numbers.

The input unit 150 is for receiving an operation command for the desired lift 20 or the mooring winch 10 from the user and receives the user's command and transmits the command to the controller 160.

The control unit 160 performs the frequency conversion control and / or the pole-number conversion control of the desired bilateral ambulance 20 or the mooring winch 10 according to a user command inputted through the input unit 150. [

The control unit 160 performs the frequency conversion control using the frequency conversion unit 120 when the high speed operation such as the fine adjustment of the speed is required for the lifting hoist 20 or the mooring winch 10, The polynomial conversion unit 140 is used to perform the polynomial conversion control. That is, the controller 160 controls the lifter 24 and the mooring winch 13 to operate in two patterns as needed through the frequency converting unit 120 and the pole number converting unit 140.

FIG. 7 is a diagram for explaining frequency conversion control of a lifter in a ship including a deck machine according to an embodiment of the present invention; FIG.

Referring to FIG. 7, in the case of performing frequency conversion control of the first sunk building 20a, current flows through the power supply network 170, the frequency converter 120, the first switching unit 100, the first sunk 20a . Accordingly, the first sunk 20a is supplied with the frequency-converted power, and the electric motor 24 operates at a speed corresponding to the power of the supplied frequency.

8 is a view for explaining frequency conversion control of a mooring winch in a ship including a deck machine according to an embodiment of the present invention.

8, when the first mooring winch 10a is subjected to the frequency conversion control, the current flows through the power supply network 170, the frequency conversion unit 120, the second switching unit 110, the first mooring winch 10a ). Thus, the first mooring winch 10a is supplied with the frequency-converted power, and the electric motor 13 operates at a speed corresponding to the power of the supplied frequency.

The speed-adjusted power is supplied to adjust the speed.

FIG. 9 is a diagram for explaining the pole-number conversion control of a sailboat in a ship including a deck machine according to an embodiment of the present invention.

9, in the case where the first sunk building 20a is subjected to pole-number conversion control, the current flows through the power supply network 170, the inverter unit 130, the pole-number conversion unit 140, the first switching unit 100, 1 < / RTI > Accordingly, the first sunk 20a is subjected to a pole-number conversion, and the electric motor 24 operates at a speed corresponding to the converted pole number.

10 is a view for explaining the pole-number conversion control of a mooring winch in a ship including a deck machine according to an embodiment of the present invention.

10, when the first mooring winch 10a is subjected to the pole-number conversion control, the current flows through the power supply network 170, the inverter unit 130, the pole number conversion unit 140, the second switching unit 110, And a first mooring winch 10a. Thereby, the first mooring winch 10a is subjected to pole-number conversion, and the electric motor 13 operates at a speed corresponding to the converted pole number.

FIG. 11 is a view for explaining frequency conversion control of a sailboat and a mooring winch in a ship including a deck machine according to an embodiment of the present invention.

11, when the first sunk building 20a and the first mooring winch 10a are subjected to frequency conversion control, the current flow to the first sunk building 20a is controlled by the power supply network 170, the frequency converter 120, A first switching unit 100, and a first shifter 20a. The current flow to the first mooring winch 10a is made up of the power supply network 170, the frequency converting unit 120, the second switching unit 110 and the first mooring winch 10a.

FIG. 12 is a view for explaining the pole-number conversion control of a bilateral ambulance and a mooring winch in a ship including a deck machine according to an embodiment of the present invention.

12, in the case where the first beam driver 20a and the first mooring winch 10a are subjected to pole-number conversion control, the current flow to the first beam driver 20a is controlled by the power supply network 170, the inverter unit 130, A pole number conversion unit 140, a first switching unit 100, and a first sunk 20a. The current flow to the first mooring winch 10a is made up of the power supply network 170, the inverter unit 130, the pole number conversion unit 140, the second switching unit 110 and the first mooring winch 10a.

13 is a control block diagram of a ship including a deck machine according to another embodiment of the present invention.

Referring to FIG. 13, in FIG. 12, the same elements as those in FIG. 4 are denoted by the same reference numerals.

13, a ship including a deck machine includes a first switching unit 100, a second switching unit 110, a frequency conversion unit 120, an inverter unit 130, a pole number conversion unit 140, (150) and a control unit (160).

The ship also includes a first switching portion 180 and a second switching portion 190.

The first switching unit 180 includes a first switching switch 180a provided on a power supply line between the frequency converter 120 and the first switching unit 100 and a second switching unit 180b provided between the frequency converter 120 and the second switching unit 110, And a second switch 180b provided on a power supply line between the first switch 180a and the second switch 180b.

The second switching unit 190 includes a first switching switch 190a provided on a power supply line between the frequency converter 120 and the first switching unit 100 and a second switching unit 190 connected to the polarity converting unit 140 and the second switching unit 110, And a second switch 190b provided on a power supply line between the first switch 190a and the second switch 190b. When the pole number conversion section 140 is provided in the hoistway 20 and the mooring winch 10, the second switching section 190 may be provided between the inverter section 130 and the pole number conversion section 140.

The first pick-up truck 20a to the n-th pick-lift 20n and / or the second pick-up winch 10a can be selectively turned on or off by selectively switching the respective switching switches in the first switch portion 180 and the second switch portion 190, The first n mooring winch 10n can be subjected to frequency conversion control or pole-number conversion control.

FIG. 14 is a view for explaining a frequency conversion control of a lifter and a pole number conversion control of a mooring winch in a ship including a deck machine according to another embodiment of the present invention.

14, in the case where the first beam driver 20a is subjected to the frequency conversion control and the first mooring winch 10a is subjected to pole-number conversion control, the current flow to the first beam driver 20a is controlled by the power supply network 170, A frequency switching unit 120, a first switch 180a of the first switching unit 180, a first switching unit 100, and a first mooring winch 10a. The current flow to the first mooring winch 10a is controlled by the power supply network 170, the inverter unit 130, the pole number conversion unit 140, the second switching switch 190b of the second switching unit 10, (110), and a first mooring winch (10a). Thus, it is possible to perform the frequency conversion control of the first lifter 20a and the pole number conversion control for the first mooring winch 10a.

FIG. 15 is a view for explaining the frequency conversion control of the mooring winch along with the pole number conversion control of the bilateral ambulance in a ship including a deck machine according to another embodiment of the present invention.

15, in the case of conducting the frequency conversion of the first mooring winch 10a while simultaneously performing the pole-number conversion of the first heifer 20a, the current flow to the first heel 20a is transmitted to the power supply network 170, A first switching switch 190a of the second switching unit 190, a first switching unit 100 and a first shifter 20a. The current flow to the first mooring winch 10a is controlled by the power supply network 170, the frequency converter 120, the first switch 180b of the first switch 180, the second switch 110, 1 mooring winch 10a. Thus, the pole number conversion control of the first sunk building 20a and the pole number conversion control of the first sunk building 20a are possible.

10: Mooring winch 11: Mooring rope
12: winding drum 13: electric motor
20: Assassin 21: Anchor
22: anchor chain 23: chain lifter
24: electric motor 100: first switching unit
110: second switching unit 120: frequency conversion unit
130: inverter section 140: polar number conversion section
150: input unit 160:
170: Power supply network 180:
190: Section 2 Return

Claims (9)

Electric sailboat;
Electric mooring winch;
A frequency converter for converting a frequency of a power source supplied to the electric winch or the electric mooring winch;
A pole number converter for converting the number of poles of the electric winch or the electric winch;
An input unit for receiving an operation command from the user for the electric sailboat and the electric mooring winch; And
Wherein the control unit controls the motor-driven winch and the electric mooring winch at the same time based on an operation command for the electric winch and the electric mooring winch inputted through the input unit, and at least one of the electric winch and the motor- And a control unit for selectively performing one of conversion and control of the motor-driven winch and pole-to-pole conversion control of the motor-driven winch and the electric mooring winch. Ship. delete The method according to claim 1,
The electric lifter includes a chain lifter for winding or unwinding an anchor chain connected to the anchor, and an electric motor for driving the chain lifter,
Wherein the electric mooring winch includes a winding drum for winding and unwinding the mooring rope and an electric motor for driving the winding drum,
Wherein the frequency converter converts the frequency of a power source supplied to the electric motor of the lift or mooring winch,
Wherein the pole number conversion unit converts the number of poles of the electric motor of the lift or mooring winch. The method of claim 3,
Wherein the electric motor of the electric winch and the electric motor of the electric mooring winch are three-phase alternating-current motors. The method according to claim 1,
A plurality of electric powered moorings and electric mooring winches,
A first switching unit that is switched to selectively supply power to the plurality of electric lifter hoists, and a second switching unit that is switched to selectively supply power to the plurality of electric mooring winches. A lifter having a chain lifter for winding or uncoiling an anchor chain connected to the anchor, and an electric motor for driving the chain lifter;
A winding drum for winding or unwinding the mooring rope; and a mooring winch having an electric motor for driving the winding drum;
A single frequency converter for converting the frequency of the power supplied from the power supply network to the electric motor of the windloader or mooring winch;
An inverter unit for converting power from the power supply network into AC power;
A single pole number conversion unit for causing the alternating current power output from the inverter unit to be supplied to the electric motor of the hoisting or mooring winch and converting the number of poles of the electric motor of the hoisting or mooring winch;
A first switching unit that is switched so that the power converted by the frequency converting unit is selectively supplied to the hoist or mooring winch;
A second switching section that is switched by the inverter section and is switched so that the alternating current power supplied via the pole number conversion section is selectively supplied to the lift or mooring winch;
An input unit for receiving an operation command from the user for the windloader and the mooring winch; And
And a controller for performing frequency conversion using the frequency converter and pole number conversion using the pole number converter to adjust the rotational speed of the electric motor of the mower and the mooring winch,
Wherein the control unit performs frequency conversion and control of the lifting winch and the mooring winch at the same time on the basis of an operation command for the lifting winch and the mooring winch inputted through the input unit, and at least one of the lifting winch and the mooring winch is a frequency conversion control unit The other one of which is controlled to perform a pole number conversion and the pole number and mooring winch are subjected to pole number conversion control at the same time. The method according to claim 6,
Wherein the pole number conversion unit includes a plurality of relays, and each of the relay units connects the output terminal of the inverter unit and the input terminal of the electric motor of the counterweight or mooring winch, respectively. 8. The method according to claim 6 or 7,
Wherein the first switching unit includes a first switching switch provided on a power line between the frequency converting unit and the headlamp, and a second switching switch provided on a power line between the frequency converting unit and the mooring winch,
Wherein the second switch comprises a first switch provided on a power supply line between the pole number converter and the counterweight and a second switch provided on a power supply line between the pole number converter and the mooring winch. Ship containing machinery. delete

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