KR101687101B1 - Control Panel for MGPS using Single Switching Structure - Google Patents

Control Panel for MGPS using Single Switching Structure Download PDF

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KR101687101B1
KR101687101B1 KR1020150055539A KR20150055539A KR101687101B1 KR 101687101 B1 KR101687101 B1 KR 101687101B1 KR 1020150055539 A KR1020150055539 A KR 1020150055539A KR 20150055539 A KR20150055539 A KR 20150055539A KR 101687101 B1 KR101687101 B1 KR 101687101B1
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South Korea
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switching
voltage
current
circuit part
output
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KR1020150055539A
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Korean (ko)
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KR20160125009A (en
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오갑석
권영일
추우헌
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동명대학교산학협력단
권영일
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Priority to KR1020150055539A priority Critical patent/KR101687101B1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B13/00—Conduits for emptying or ballasting; Self-bailing equipment; Scuppers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B59/00—Hull protection specially adapted for vessels; Cleaning devices specially adapted for vessels
    • B63B59/04—Preventing hull fouling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/24—Preventing accumulation of dirt or other matter in the pipes, e.g. by traps, by strainers
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05C—ELECTRIC CIRCUITS OR APPARATUS SPECIALLY DESIGNED FOR USE IN EQUIPMENT FOR KILLING, STUNNING, OR GUIDING LIVING BEINGS
    • H05C1/00—Circuits or apparatus for generating electric shock effects
    • H05C1/02—Circuits or apparatus for generating electric shock effects providing continuous feeding of dc or ac voltage

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Ocean & Marine Engineering (AREA)
  • Power Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Insects & Arthropods (AREA)
  • Dc-Dc Converters (AREA)

Abstract

The present invention relates to a control panel of an MGPS, which is a device for preventing marine life from adhering to marine structures and vessels in direct contact with seawater. More particularly, the present invention relates to a control panel of a MGPS having a low efficiency double- To an MGPS control panel having a single switching structure for controlling the MGPS with a single constant current switching structure.
The high efficiency MGPS control panel 10 of the single switching structure according to the present invention includes a noise filter unit 200 for eliminating high frequency noise of the input AC power supply 100, , A constant current output switching module 310 for generating a second high frequency low voltage power from the smoothed high voltage power source in the input rectifying / smoothing circuit part 310 Switching power supply switching module 400 for generating a second high-frequency low-voltage power from the smoothed high voltage power supply in the switching circuit part A (320), switching transformer A (340) and input rectifying / smoothing circuit part (310) An output for changing the secondary high-frequency low-voltage power source generated in the circuit part B 410, the switching transformer B 420, the switching circuit part A 320 and the switching transformer A 340 to a smoothed voltage Output rectifying / smoothing circuit portion B 430 for changing the secondary high-frequency low-voltage power source generated by the rectifying / smoothing circuit portion A 350, the switching circuit portion B 410 and the switching transformer B 420 to a smoothed voltage, The current sensing unit A 360 senses the current of the smoothed / smoothed circuit unit A 350 smoothed second high-frequency low-voltage power source, and the current passing through the current sensing unit A 360 is proportional to the amount of current A current sensing unit B 440 that feeds a smoothed second high frequency low voltage power to the switching circuit B 410 to obtain a constant voltage from the output rectifying / smoothing circuit unit B 430, A DC control power source 450 for acquiring a constant voltage in the control power switching module 400 and terminating feedback when a constant voltage is sensed in the current sensing unit B 440 and no additional feedback is needed, Control Settings A system setting control module 500 configured by a processor MCU 510, a communication unit 520 for communicating with the outside and a user interface HMI 530, a voltage output from the current sensing unit A 360, And a power supply separation gate drive (330) for outputting a constant current by adjusting the switching output to the switching circuit part (A) (320) in comparison with the set current value when fed back to the MCU (510)

Figure R1020150055539

Description

[0001] The present invention relates to a high-efficiency MGPS control panel having a single switching structure,

The present invention relates to a control panel of a marine growth inhibiting system (MGPS), which is an apparatus for preventing marine life from adhering to ships and marine structures in direct contact with seawater. More particularly, to a high efficiency MGPS control panel having a single switching structure for improving and controlling MGPS of a conventional low efficiency double constant current switching structure to MGPS of a high efficiency single constant current switching structure.

The MGPS consists of a constant current rectifier, an anode for electrolysis or an iron anode. When a direct current flows through the copper anode, a certain amount of copper ions are released into the seawater system, making it impossible for marine organisms to exist. When a direct current is flowed, aluminum hydroxide precipitate is released to form a corrosion-resistant mixed oxide film on the surface of iron oxide in the seawater system, thereby reducing the corrosion rate. And the iron anode reduces the corrosion rate of the nonferrous metal surface.

Conventional MGPS rectifiers are constructed by installing or embedding a switching mode power supply (SMPS) separately. This is due to a 10 ~ 20% loss of power in the primary switching (SMPS) due to the dual switching structure and a 40 ~ 50% loss in the secondary switching, resulting in a total efficiency of 40 ~ 55%. Considering the power consumed by the display unit and the system control unit, the overall system efficiency is as low as 50% or less. The secondary switching circuit has a step-down converter structure that outputs a low-voltage high current, and the circuit is configured to output a voltage and a current in a variable manner in accordance with the operation of the system without outputting only a constant voltage and current. The structure can not achieve high efficiency of SMPS which is commonly used.

Devices for preventing marine organisms from adhering to vessels and offshore structures and prior art for controlling them include the 10-055187, 10-1422752 and 10-0996495 filed in the Korean Intellectual Property Office. Previously, however, a MGPS control panel with a single switching structure with high efficiency has not been proposed.

KR 10-055187 KR 10-1422752 KR 10-0996495

The present invention aims to satisfy the technical needs required from the background of the above-mentioned invention.

More specifically, it is an object of the present invention to provide a high efficiency MGPS control panel in which a double switching structure of a conventional MGPS used in ships and offshore structures is improved to a single constant current switching structure.

In order to achieve the above object, a high efficiency MGPS control panel of a single switching structure according to the present invention is to solve the low efficiency problem of existing MGPS by switching the AC input through the SMPS to DC voltage, And the current output is controlled by a single switching of the AC input power in the conventional method of controlling the output.

As described above, the present invention can increase the efficiency of the rectifier of a single switching structure over the conventional double switching rectification method. In addition, it is possible to fabricate MGPS which is structurally simplified, so it can improve the reliability of products by lowering the defect rate and reduce the power consumption due to the use of the high efficiency MGPS, thereby reducing the operation cost of the ship and the offshore structure.

1 is a schematic block diagram of a high efficiency MGPS control panel of a single switching structure according to an embodiment of the present invention.
2 is a detailed circuit diagram of main input and output switching among high efficiency MGPS control panels of a single switching structure according to an embodiment of the present invention.
3 is a detailed circuit diagram of a DC control power supply among high efficiency MGPS control panels of a single switching structure according to an embodiment of the present invention.
4 is a detailed circuit diagram of an MCU of a high efficiency MGPS control panel of a single switching structure according to an embodiment of the present invention.
5 is a detailed circuit diagram of an HMI of a high efficiency MGPS control panel of a single switching structure according to an embodiment of the present invention.
6 is a detailed circuit diagram of a gate driver of a high efficiency MGPS control panel of a single switching structure according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings, but the present invention is not limited by the scope of the present invention.

1, the MGPS control panel 10 having a single switching structure according to the present invention is composed of a constant current output switching module 300, a control power switching module 400, and a system setting control module 500 . The input AC power source (100) uses the commercial AC power source of 220V as a base, and the output is variable from 0 to 10A and the constant current is outputted (600). The input AC power supply 100 supplies power through the noise filter unit 200 to remove high frequency noise. The power supply through the noise filter unit 200 changes the alternating current to a pulsating current at the input rectifying / smoothing unit 310 and smoothens it into high voltage DC. It is preferable to use four high-voltage bridge diodes or high-voltage rectification diodes for rectification, and change the pulsating current to direct current through a high-voltage capacitor for smoothing. The smoothed high voltage power source is used as a switching power source for the constant current output switching module 300 and the control power switching module 400.

The smoothed / smoothed input power for the input rectifying / smoothing unit 310 is supplied to the second high-frequency low-voltage power source (not shown) through the switching circuit part A 320 and the switching circuit part B 410, the switching transformer A 340 and the switching transformer B 420, . It is preferable that the switching circuit part A 320 uses a high-voltage high-speed switching FET and the switching circuit part B 410 uses a commercial SMPS switching IC.

The secondary high-frequency low-voltage power source is changed to a smoothed voltage while passing through the output rectifying / smoothing circuit portion A 350 and the output smoothing / smoothing circuit portion B 430. It is preferable that the output rectifying / smoothing circuit portion A 350 and the output rectifying / smoothing circuit portion B 430 use a high speed diode and a low voltage capacitor.

As shown in FIG. 2, the high-speed switching FET and the high-speed diode are preferably used for the output rectifying / smoothing circuit part A (350). It is preferable that a signal obtained by inverting the FET signal of the switching circuit part A (320) is input to the FET switching signal, and a dead-time suitable for switching on / off of the two FETs is applied.

The smoothed secondary voltage passing through the output rectifying / smoothing circuit part B 430 is fed back to the switching circuit part B 410 through the current sensing part B 440 to obtain a constant voltage. When the constant voltage is sensed by the current sensing unit B 440 and no additional feedback is required, the control unit 400 moves to the DC control power supply 450 and the constant voltage acquisition process in the control power supply switching module 400 ends. The detailed circuit configuration of the DC control power supply 450 is preferably as shown in FIG.

The smoothed secondary voltage passing through the output rectifying / smoothing circuit part A (350) is outputted through the current sensing part A (360), outputted as a constant current (600) or connected to the voltage sensing part (370) Detection. The current sensing unit A 360 may be composed of a shunt resistor and an amplifier so that the voltage varies proportionally according to the amount of current. The voltage sensing unit 370 may be configured to vary the voltage proportionally through voltage division with two resistors and the voltage range of the voltage sensing unit 370 may range from 0 to < RTI ID = 0.0 > It is preferable to set it to 3.3 V or less.

The voltage output through the current sensing unit A 360 is fed back to the MCU 510 of the system setting control module 500 and the resistance value of the output terminal can be extracted by the output current and voltage. Thus, the resistance value extracted from the output stage can be used to calculate the salinity of the seawater or to detect the error.

The configuration of the system setting control module 500 includes a processor MCU 510 for overall control of the system, a communication unit 520 for communicating with the outside, and a user interface HMI 530. The detailed circuit configuration of the MCU 510 is as shown in FIG. 4, and the detailed circuit configuration of the HMI 530 is as shown in FIG. In addition, the HMI 530 preferably includes a switch for allowing a user to input an output setting, and an FND or LCD for displaying a set current value and an output current value. In addition, the communication unit 520 supports the RS485 standard, which is the most commonly used in ships, so that it is possible to monitor the system of the present invention in an upper control system.

When the voltage output through the current sensing unit A 360 is fed back to the MCU 510 in the system setting control module 500, the switching output is adjusted to the switching circuit unit A 320 in comparison with the set current value A power source separation gate drive 330 for outputting a constant current is provided and the detailed circuit configuration of the power source separation gate 330 is preferably as shown in FIG.

While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments.

100: Input AC power source
200: Noise filter unit
300: Constant current output switching module
400: Control power switching module
500: System setting control module

Claims (6)

In the high efficiency MGPS control panel 10 of a single switching structure,
A noise filter unit 200 for removing high frequency noise of the input AC power source 100;
An input rectifying / smoothing circuit part 310 for changing the alternating current of the power source passed through the noise filter part 200 to a pulsating current and smoothing it to a high voltage DC;
A switching circuit part A 320 and a switching transformer A 340 in the constant current output switching module 300 for generating a second high frequency low voltage power from the smoothed high voltage power source in the input rectifying / smoothing circuit part 310;
A switching circuit part B 410 and a switching transformer B 420 in a control power source switching module 400 for generating a second high frequency low voltage power source from the smoothed high voltage power source in the input rectifying / smoothing circuit part 310;
An output rectifying / smoothing circuit part A 350 for changing the secondary high-frequency low-voltage power generated by the switching circuit part A 320 and the switching transformer A 340 into a smoothed voltage;
An output rectifying / smoothing circuit part B (430) for changing the secondary high-frequency low-voltage power generated by the switching circuit part B (410) and the switching transformer B (420) to a smoothed voltage;
A current sensing unit A 360 for sensing the current of the smoothed second high-frequency low-voltage power supply in the output rectifying / smoothing circuit unit A 350;
A voltage sensing unit 370 for allowing the current passing through the current sensing unit A 360 to change in proportion to the amount of current;
A current sensing part B 440 for feeding back the smoothed second high frequency low voltage power from the output rectifying / smoothing circuit part B 430 to the switching circuit part B 410 so as to obtain a constant voltage;
A DC control power source 450 for acquiring a constant voltage in the control power switching module 400 and terminating feedback when the current sensing unit B 440 senses a constant voltage and does not need additional feedback;
A system setting control module 500 including a processor MCU 510 for controlling the entire system and controlling user settings, a communication unit 520 for communicating with the outside, and a user interface HMI 530;
When the voltage output through the current sensing unit A 360 is fed back to the MCU 510 in the system setting control module 500, the switching output is adjusted to the switching circuit unit A 320 in comparison with the set current value, And a power-off gate drive (330) for outputting the power-saving gate drive (330). The method according to claim 1,
Wherein the switching circuit part A (320) in the constant current output switching module (300) uses a high voltage fast switching FET. The method according to claim 1,
Wherein the output rectifying / smoothing circuit part A 350 in the constant current output switching module 300 uses a high speed diode and a high speed switching FET together. The method according to claim 1,
Wherein the switching circuit part B (410) in the control power supply switching module (400) uses a commercial SMPS switching IC. The method according to claim 1,
A voltage sensing unit 370 including a shunt resistor and an amplifier and outputting 0 to 3.3 V, which is a voltage for converting an analog signal into a digital signal, is included in the MCU 510 so that the voltage is changed in proportion to the amount of current (10) having a single switching structure. The method according to claim 1,
The HMI 530 includes a switch for inputting a user's output setting and an FND or LCD for displaying a set / output current value. (MGPS) control panel (10) having a single switching structure.
KR1020150055539A 2015-04-20 2015-04-20 Control Panel for MGPS using Single Switching Structure KR101687101B1 (en)

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KR102643407B1 (en) * 2023-10-05 2024-03-05 한화시스템(주) Modular system for ship-mounted equipment and method of operation thereof

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100488580B1 (en) 2005-01-04 2005-05-11 주식회사 케이씨 Impressed current cathodic protection system
KR100551871B1 (en) 2005-07-06 2006-02-14 주식회사 케이씨 Marine growth preventing system

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100996495B1 (en) 2008-06-09 2010-11-24 한국해양대학교 산학협력단 Electric Antipolution Apparatus for Ocean Facilities at Sea
KR101422752B1 (en) 2012-07-27 2014-07-24 삼성중공업 주식회사 System and method for preventing adhesion of marine organism to sterilize sea water inflow line
KR20140146927A (en) * 2013-06-18 2014-12-29 김혁 Sea water electrolysis device
KR20150018015A (en) * 2013-08-08 2015-02-23 김대회 Power Supply Apparatus for Electrolysis Ballast Water Treatment System

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100488580B1 (en) 2005-01-04 2005-05-11 주식회사 케이씨 Impressed current cathodic protection system
KR100551871B1 (en) 2005-07-06 2006-02-14 주식회사 케이씨 Marine growth preventing system

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