CN110392469B - Ship LED lighting system and soft starting device thereof - Google Patents
Ship LED lighting system and soft starting device thereof Download PDFInfo
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- CN110392469B CN110392469B CN201910651014.2A CN201910651014A CN110392469B CN 110392469 B CN110392469 B CN 110392469B CN 201910651014 A CN201910651014 A CN 201910651014A CN 110392469 B CN110392469 B CN 110392469B
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
Abstract
The invention discloses a ship LED lighting system and a soft start device thereof, wherein the soft start device of the ship LED lighting system comprises a first circuit breaker and a zero-crossing trigger module; when the power supply end does not supply power, the zero-crossing trigger module is in an open circuit state; when the power supply end starts to supply power, the zero-crossing trigger module is used for detecting whether the voltage of the power supply end crosses zero or not, and if yes, the zero-crossing trigger module is conducted to supply power to the LED lighting equipment. The invention effectively inhibits the larger impact current generated by the LED lighting system in the starting process by the soft starting technology; meanwhile, the economy and reliability of the system and equipment can be ensured to be unaffected under the condition that the current ship lighting power distribution design standard and the current technology state are not changed; in addition, the maximum using quantity of the LED lighting equipment in each lighting branch can be increased, so that the using quantity of cables built by the system is reduced, and the using cost is further reduced.
Description
Technical Field
The invention relates to the technical field of circuit design, in particular to a ship LED lighting system and a soft start device thereof.
Background
With the continuous improvement of energy saving and dimming performance of LED (light emitting diode) lamps, the application proportion of the LED lamps in the ship industry is gradually enlarged, and some large passenger ships even use LED lighting devices on the whole ship.
The LED lighting equipment is generally started directly, however, because a power supply matched with the LED lighting equipment drives an input filter capacitor element inside the LED lighting equipment to generate huge impact current due to a charging effect at the moment of electrifying, based on the principle and technical state of the current ship lighting power distribution design, the reliable work of a lighting system is inevitably influenced; in addition, in order to avoid the power loss state caused by the huge impact current of direct starting, the cable and the first circuit breaker are usually selected according to the starting working state in the design instead of the normal working state, so that the cost and the weight of the first circuit breaker and the cable are greatly increased.
Disclosure of Invention
The invention aims to overcome the defects that the reliability and stability of a whole ship power distribution network are affected by huge impact current generated by directly starting a ship LED lighting system in the prior art, and provides a ship LED lighting system and a soft starting device thereof.
The invention solves the technical problems through the following technical scheme:
the invention provides a soft start device of a ship LED lighting system, which comprises a first circuit breaker and a zero-crossing trigger module;
the input end of the first circuit breaker is electrically connected with the power supply end, the output end of the first circuit breaker is electrically connected with the input end of the zero-crossing trigger module, and the output end of the zero-crossing trigger module is electrically connected with LED lighting equipment in the ship LED lighting system;
the zero-crossing trigger module is electrically connected with the input end of the first circuit breaker through a detection line;
when the power supply end is not powered, the zero-crossing trigger module is in an open circuit state;
when the power supply end starts to supply power, the zero-crossing trigger module is used for detecting whether the voltage of the power supply end crosses zero, and if so, the zero-crossing trigger module is conducted to supply power to the LED lighting equipment.
Preferably, the soft start device further comprises at least one control switch;
one end of the control switch is electrically connected with the output end of the zero-crossing trigger module, and the other end of the control switch is electrically connected with the set number of LED lighting equipment;
each control switch is used for controlling the turning-on and turning-off of a set number of the LED lighting devices.
Preferably, the zero-crossing trigger module is integrally disposed in the first circuit breaker.
Preferably, the first circuit breaker comprises a miniature circuit breaker.
The invention also provides a ship LED lighting system which comprises the soft starting device of the ship LED lighting system.
Preferably, the ship LED lighting system comprises a distribution box;
the distribution box comprises a plurality of output ends, and each output end is one power supply end.
Preferably, the ship LED lighting system comprises a plurality of lighting branches;
each output end of the distribution box is electrically connected with one lighting branch circuit respectively;
and each lighting branch is correspondingly provided with one soft starting device and a plurality of LED lighting devices.
Preferably, the plurality of LED lighting devices are electrically connected in parallel.
Preferably, the ship LED lighting system further comprises a power supply network, a transformer and a second circuit breaker;
the power supply network is electrically connected with the transformer, the second circuit breaker and the distribution box in sequence;
the power supply network is used for supplying power to the ship LED lighting system;
the transformer is used for converting the voltage provided by the power supply network into a set voltage value;
the second circuit breaker is used for automatically cutting off the ship LED lighting system when the ship LED lighting system meets a fault condition.
Preferably, the second circuit breaker comprises a molded case circuit breaker.
The positive progress effects of the invention are as follows:
according to the invention, the miniature circuit breaker and the zero-crossing trigger module are arranged on each lighting branch in the ship LED lighting system, and the zero-crossing trigger module is conducted only when the zero-crossing trigger module detects the voltage zero crossing of the power supply end, so that the current lighting branch is softly started and switched on, and the larger impact current generated in the starting process of the LED lighting system is effectively inhibited; meanwhile, the economy and reliability of the system and equipment can be ensured to be unaffected under the condition that the current ship lighting power distribution design standard and the current technology state are not changed; in addition, the maximum using quantity of the LED lighting equipment in each lighting branch can be increased, so that the using quantity of cables built by the system is reduced, and the using cost is further reduced.
Drawings
Fig. 1 is a schematic block diagram of a soft-start device of a ship LED lighting system according to embodiment 1 of the present invention.
Fig. 2 is a schematic block diagram of a ship LED lighting system according to embodiment 2 of the present invention.
Fig. 3 is a schematic structural diagram of a ship LED lighting system according to embodiment 2 of the present invention.
Fig. 4 is a schematic diagram of the change of the impulse current of different lighting branches in the ship LED lighting system according to embodiment 2 of the present invention under the direct start-up condition.
Fig. 5 is a schematic diagram of maximum usage amounts of different lighting branches in the ship LED lighting system according to embodiment 2 of the present invention in a direct start-up situation.
Fig. 6 is a schematic diagram of the change of the impulse current of the same lighting branch in the ship LED lighting system in embodiment 2 of the present invention under different starting modes.
Fig. 7 is a schematic diagram of maximum usage amounts of different lighting branches in the ship LED lighting system according to embodiment 2 of the present invention under a soft start condition.
Detailed Description
The invention is further illustrated by the following examples, which are not intended to limit the scope of the invention.
Example 1
As shown in fig. 1, the soft start device of the ship LED lighting system of the present embodiment includes a first circuit breaker 1 and a zero-crossing trigger module 2.
Wherein the first circuit breaker 1 includes, but is not limited to, a micro circuit breaker.
The input end of the first circuit breaker 1 is electrically connected with the power supply end, the output end of the first circuit breaker 1 is electrically connected with the input end of the zero-crossing trigger module 2, and the output end of the zero-crossing trigger module 2 is electrically connected with the LED lighting equipment in the ship LED lighting system.
Therein, the zero-crossing trip module 2 is preferably integrated in the first circuit breaker 1.
The zero-crossing trigger module 2 is electrically connected with the input end of the first circuit breaker 1 through a detection line;
when the power supply end does not supply power, the zero-crossing trigger module 2 is in an open circuit state;
when the power supply end starts to supply power, the zero-crossing trigger module 2 is used for detecting whether the voltage of the power supply end crosses zero or not, if so, the zero-crossing trigger module 2 is conducted to supply power to the LED lighting equipment, namely, the LED lighting system is driven by a soft start mode, so that the problem of huge impact current generated in the direct starting process of the LED lighting system is effectively solved, and the reliability, continuity, stability and power supply quality of a ship power distribution network are ensured.
For example, when the input voltage of the power supply terminal is
Where ω represents the angular velocity of the object,
representing the phase angle. When in use
When the voltage source phase angle is zero, the zero-crossing of the input voltage at the power supply end is represented.
In addition, the soft start device of this embodiment further includes at least one control switch 3, one end of the control switch 3 is electrically connected to the output end of the zero-crossing trigger module 2, and the other end of the control switch 3 is electrically connected to a set number of LED lighting devices; each control switch 3 is used to individually control the turning on and off of a set number of LED lighting devices.
In the embodiment, the miniature circuit breaker and the zero-crossing trigger module are arranged on each lighting branch in the ship LED lighting system, and the current lighting branch is softly started and switched on only when the zero-crossing trigger module detects the voltage zero crossing of the power supply end, so that the larger impact current generated in the starting process of the LED lighting system is effectively inhibited; meanwhile, the economy, reliability and safety of the system and equipment can be improved under the condition of not changing the current ship lighting power distribution design standard and technical state.
Example 2
As shown in fig. 2, the marine LED lighting system of the present embodiment includes the soft start device of the marine LED lighting system of embodiment 1.
The ship LED lighting system also comprises a distribution box 4 and a plurality of lighting branches.
The distribution box 4 comprises a plurality of output terminals, each of which is a power supply terminal.
Each output end of the distribution box 4 is electrically connected with one lighting branch circuit, and each lighting branch circuit is correspondingly provided with a soft start device and a plurality of LED lighting devices 8.
Wherein the plurality of LED lighting devices are electrically connected in parallel.
For example, a deck a, a deck B and a deck C are provided on a ship, each deck is correspondingly provided with an illumination branch, and the illumination branch on each deck comprises a soft start device and a plurality of control switches; taking the deck a as an example, the soft start device is equivalent to a master switch for controlling the deck a, and after the soft start device controls the corresponding lighting branch circuits to be soft-started, each control switch respectively controls the on-off of the LED lighting devices in different areas on the deck a.
The ship LED lighting system also comprises a power supply network 5, a transformer 6 and a second circuit breaker 7;
the power supply network 5 is electrically connected with the transformer 6, the second breaker 7 and the distribution box 4 in sequence;
the power supply network 5 is used for supplying power to the ship LED lighting system;
the transformer 6 is used for converting the voltage provided by the power supply network 5 into a set voltage value;
the second circuit breaker 7 is used for automatically cutting off the ship LED lighting system when the ship LED lighting system meets the fault condition.
Wherein the second circuit breaker 7 comprises a molded case circuit breaker.
The marine LED lighting system further comprises an ACB (frame breaker) 9 connected in series between the power supply network 5 and the transformer 6.
The following is a detailed description with reference to examples:
as shown in fig. 3, for the schematic diagram of the power distribution network structure of the existing ship LED lighting system, L1-Ln (n is a positive integer) respectively represent n different lighting branches (the zero-crossing trigger module is integrally disposed in the first circuit breaker 1).
The lighting devices in the lighting branch L1 are 30 15W LED down lamps, and the lighting devices in the lighting branch L2 are 10 45W LED panel lamps. Considering the economic applicability of the power switches and cables, the first circuit breaker in each lighting branch generally employs a type C MCB (miniature circuit breaker) with a 10A rated current setting, according to the electrical design convention of ships, and its instantaneous trip current is generally set to 10 times the rated current (i.e. 100A).
When the lighting branch is directly activated:
as shown in fig. 4, the horizontal axis represents time (unit s), the vertical axis represents current (unit a), the maximum starting impact current generated at the moment when the lighting branch L1 and the rated current L2 with the rated current of 2A are powered on is subjected to function curve simulation (curve a represents the impact current variation condition corresponding to the lighting branch L1 under the condition of direct starting, and curve b represents the impact current variation curve corresponding to the lighting branch L2 under the condition of direct starting), it can be seen that when the impedance of the power supply line is considered, the impact current peak values generated at the starting moment of the lighting branch L1 and the lighting branch L2 are 244A and 162A respectively, which are about 122 times and 81 times of the rated current, that is, the impact current generated in each lighting branch during direct starting is far higher than the starting impact current peak value (100A) set by the instant tripping current of the first circuit breaker, after being converted into electromagnetic tripping action force according to the square times, the instantaneous release of the first circuit breaker can be caused to generate misoperation with high probability, so that the first circuit breaker can not be switched on or powered on again, and if the control switch is connected in series in a loop, the switch contact can be caused to be welded in a melting way to cause a short-circuit fault of a circuit in serious conditions.
In addition, as shown in fig. 5, the horizontal axis represents the power (W) of the LED lighting fixture, and the vertical axis represents the maximum number of the LED lighting fixtures used in the lighting branch, so that the lighting branch L1 using 30 15W LED downlights can generate an instantaneous trip malfunction during the closing process, while the lighting branch L2 using 10 45W LED panel lights with the same total power can not generate a trip malfunction during the closing process, that is, the lighting branch L2 with the same total power but with a small power of a single lamp and a large number of lamp points can more easily cause an instantaneous trip malfunction.
When soft-starting the illumination branch:
as shown in fig. 6, the horizontal axis represents time (unit s), the vertical axis represents current (unit a), the curve c represents the impulse current characteristic of a certain lighting branch under direct start, and the curve d represents the impulse current characteristic of the lighting branch under soft start, so that when the soft start mode is used, the starting impulse current peak value corresponding to the lighting branch of the LED lighting system is reduced to 1/5 (about 49A) which is far lower than the set value of the instantaneous trip current of the first circuit breaker by 100A, and therefore, the first circuit breaker does not generate instantaneous trip malfunction, thereby ensuring the reliability and stability of the distribution network of the whole ship of the LED lighting system.
Meanwhile, the lighting branch also has sufficient margin for the expansion of LED lighting engineering. As shown in fig. 7, the horizontal axis represents the power (W) of the LED lighting fixture, and the vertical axis represents the maximum number of the LED lighting fixtures in the lighting branch, so that when the soft start technology is used, as long as the total power of the LED loads in the lighting branch is not greater than 2000W and the total number of the fixtures is not greater than 40, the first circuit breaker in the lighting branch can be ensured to operate normally.
In combination with the existing ship lighting design rule, the first circuit breaker is to be selected according to the rated current of the load by 1.25 times, so when the LED lighting branch is powered by the MCB with the rated current set to 10A, the power of the lighting branch is limited to 2000W in the design process, and in practical engineering application, although the power driving of the LED lamp has good constant voltage characteristics, the voltage drop is generally not required to be considered, the total number of the LED lamps of the lighting branch cannot exceed 40 in consideration of lighting grouping and maintenance. Therefore, after the soft start technology is adopted, the existing design experience and criterion can be continuously used without other problems and hidden dangers when the ship LED lighting power distribution design is carried out.
The amplitude of the instantaneous impact current of the ship LED lighting system is integrally and greatly reduced after the soft start technology is adopted, the peak value of the instantaneous impact current is reduced to 10 times of rated working current which is about 1/3 of the maximum impact current during direct start, according to the design standard of ship lighting power distribution, the instantaneous start impact current does not exceed the power supply of the lighting distribution boxes at the moment, the economy is guaranteed, meanwhile, the instantaneous tripping set value of the first reliable electric breaker of the lighting system is improved, and therefore, power switching of each LED lighting distribution box can be smoothly completed after the soft start technology is adopted.
The ship LED lighting system of the embodiment effectively inhibits the impact current generated by the LED lighting load in the starting process based on the soft starting device, and simultaneously ensures that the economy and reliability of the system and equipment are not influenced under the condition of not changing the current ship lighting power distribution design standard and technical state; in addition, the maximum use number of the LED lighting lamps in the lighting branch can be increased, the use amount of cables built by the system is reduced, and the use cost is reduced.
While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and scope of the invention, and these changes and modifications are within the scope of the invention.
Claims (5)
1. The ship LED lighting system is characterized by comprising a soft starting device;
the soft starting device comprises a first circuit breaker and a zero-crossing triggering module;
the input end of the first circuit breaker is electrically connected with the power supply end, the output end of the first circuit breaker is electrically connected with the input end of the zero-crossing trigger module, and the output end of the zero-crossing trigger module is electrically connected with LED lighting equipment in the ship LED lighting system;
the zero-crossing trigger module is electrically connected with the input end of the first circuit breaker through a detection line;
when the power supply end is not powered, the zero-crossing trigger module is in an open circuit state;
when the power supply end starts to supply power, the zero-crossing trigger module is used for detecting whether the voltage of the power supply end crosses zero or not, and if yes, the zero-crossing trigger module is conducted to supply power to the LED lighting equipment;
the soft starting device also comprises at least one control switch;
one end of the control switch is electrically connected with the output end of the zero-crossing trigger module, and the other end of the control switch is electrically connected with the set number of LED lighting equipment;
each control switch is used for controlling the turning on and off of a set number of the LED lighting devices;
the ship LED lighting system comprises a distribution box;
the distribution box comprises a plurality of output ends, and each output end is a power supply end;
the ship LED lighting system comprises a plurality of lighting branches;
each output end of the distribution box is electrically connected with one lighting branch circuit respectively;
each lighting branch is correspondingly provided with one soft starting device and a plurality of LED lighting devices;
the plurality of the LED lighting devices are electrically connected in parallel.
2. The marine LED lighting system of claim 1, further comprising a power supply network, a transformer, and a second circuit breaker;
the power supply network is electrically connected with the transformer, the second circuit breaker and the distribution box in sequence;
the power supply network is used for supplying power to the ship LED lighting system;
the transformer is used for converting the voltage provided by the power supply network into a set voltage value;
the second circuit breaker is used for automatically cutting off the ship LED lighting system when the ship LED lighting system meets a fault condition.
3. The marine LED lighting system of claim 2, wherein the second circuit breaker comprises a molded case circuit breaker.
4. The marine LED lighting system of claim 1, wherein the zero-crossing trigger module is integrated in the first circuit breaker.
5. The marine LED lighting system of claim 1, wherein the first circuit breaker comprises a miniature circuit breaker.
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| CN201910651014.2A CN110392469B (en) | 2019-07-18 | 2019-07-18 | Ship LED lighting system and soft starting device thereof |
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| CN201910651014.2A CN110392469B (en) | 2019-07-18 | 2019-07-18 | Ship LED lighting system and soft starting device thereof |
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| CN110392469B true CN110392469B (en) | 2022-03-08 |
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| EP0030136A1 (en) * | 1979-11-30 | 1981-06-10 | Rca Corporation | Regulated deflection circuit with start-up control |
| CN1705421A (en) * | 2004-06-01 | 2005-12-07 | 深圳市日锋电子有限公司 | Digital remote controlled dimmer switch capable of controlling energy-saving lamp |
| CN201207751Y (en) * | 2007-06-20 | 2009-03-11 | 东莞市友美电源设备有限公司 | Energy-saving controller for digital controlled road lamp |
| CN201248188Y (en) * | 2008-08-27 | 2009-05-27 | 山东鑫林电气科技有限公司 | Intelligent illumination regulation and control device |
| CN103036446A (en) * | 2011-09-30 | 2013-04-10 | 艾默生网络能源有限公司 | Soft starting device and method for high-power transformer |
| CN106061039A (en) * | 2016-07-22 | 2016-10-26 | 昆山市新昊源节能服务有限公司 | Soft starting method for AC-LED driving power supply |
| CN106300242A (en) * | 2015-05-25 | 2017-01-04 | 广西荔浦深蓝电子有限公司 | A kind of universal uneven formula overvoltage lightning protection circuit |
-
2019
- 2019-07-18 CN CN201910651014.2A patent/CN110392469B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0030136A1 (en) * | 1979-11-30 | 1981-06-10 | Rca Corporation | Regulated deflection circuit with start-up control |
| CN1705421A (en) * | 2004-06-01 | 2005-12-07 | 深圳市日锋电子有限公司 | Digital remote controlled dimmer switch capable of controlling energy-saving lamp |
| CN201207751Y (en) * | 2007-06-20 | 2009-03-11 | 东莞市友美电源设备有限公司 | Energy-saving controller for digital controlled road lamp |
| CN201248188Y (en) * | 2008-08-27 | 2009-05-27 | 山东鑫林电气科技有限公司 | Intelligent illumination regulation and control device |
| CN103036446A (en) * | 2011-09-30 | 2013-04-10 | 艾默生网络能源有限公司 | Soft starting device and method for high-power transformer |
| CN106300242A (en) * | 2015-05-25 | 2017-01-04 | 广西荔浦深蓝电子有限公司 | A kind of universal uneven formula overvoltage lightning protection circuit |
| CN106061039A (en) * | 2016-07-22 | 2016-10-26 | 昆山市新昊源节能服务有限公司 | Soft starting method for AC-LED driving power supply |
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