KR101346457B1 - The distributing system for a ship - Google Patents

Abstract

The present invention relates to a power distribution system for a ship. The power distribution system induces reduction in the number of loads charged by a distributor for loads by causing the distributor for loads to become plural, moving the distributors for loads from a main high-voltage distributor to multiple sub high-voltage distributors, and then electrically connecting the distributors for loads and the sub high-voltage distributors, respectively. Additionally, in the power distribution system, a transformer (TR) is installed between the multiple sub high-voltage distributors and the distributors for loads to drop power supply from the sub high-voltage distributor, and thus capacity of the TR can be designed to be reduced understandably, without particular trouble, depending on the reduction of the number of connected loads having been charged by the distributor for loads. Therefore, it is possible to guide a ship operator to avoid various problems, easily, caused by capacity increment of the TR, for example, decline of power management efficiency, increase of cross-section area of a cable for electricity connection, a need for installing additional breaker. [Reference numerals] (21) Power source; (22) Main high-voltage power distributor; (29,30) Sub high-voltage power distributor; (31a,32a) Electric equipment connection board; (46,48) Power distributor for loads; (49a,49b,49c,49d,49e,49f) Load; (5) Low-voltage power distributor

Description

The distributing system for a ship}

The present invention relates to a ship distribution system, and more particularly, to a plurality of load distributors, to induce a reduction in the number of loads in charge of the load distributor, and then to the load distributor, unlike the conventional high voltage distributor. From the sub-high voltage distributor to the sub-high voltage distributor and electrically connecting the sub-high voltage distributor to each other, and additionally installing a TR for lowering and transforming the supply voltage of the sub high-voltage distributor between the plurality of sub-high voltage distributors and the respective load distributors. Through this, the capacity of the TR can be naturally reduced and designed according to the <reduction of the number of connection loads that the load distributor was in charge of distribution> without any problems, and thus, various factors caused by the increase in the capacity of the TR on the ship operator side. Problems, such as reduced power operating efficiency, shorter area of electrical connection cables It relates to a distribution system that can guide the ship so that you can easily avoid the problem, install additional problems, such as a breaker.

In general, various types of loads (eg, blowers, lights, etc.) are generally installed in ships, and in order to operate these loads normally, corresponding ship distribution systems must be elaborately provided. An example of such a ship distribution system according to the prior art is disclosed in Korean Patent Publication No. 10-2010-51157 (name: power supply device of the ship dwelling), Korean Patent Publication No. 10-2012-209 (name: high voltage switchboard is separated Installed LNG FPSO vessels).

On the other hand, as shown in Figure 1, under the vessel distribution system 13 according to the prior art described above, the power supplied from the power source 1 is <main high voltage distributor 2>, <the main high voltage distributor A plurality of sub-high voltage distributors 9 and 10 branched from the side of (2) and supplied with power, &lt; electric power from the main main high voltage distributor 2 side while taking a structure electrically connected to the main high voltage distributor 2; Low voltage distributor 5 which is supplied with>, <Load distributor 6 which receives electric power from the said main high voltage distributor 2 side, taking the structure electrically connected with the said main high voltage distributor 2>, <The A path that is electrically connected to the plurality of sub high voltage distributors 9 and 10 and is distributed through the electric device control boards 11 and 12 that receives power from the sub high voltage distributors 9 and 10. Will suffer.

At this time, the transformer 3b (TR: Transformer) side electrically connected to the main high voltage distributor 2 converts the high voltage power output from the main high voltage distributor 2 side to low voltage, and then converts the low voltage power that has been transformed. It serves to supply to the low-voltage distributor (5) side. In this case, in the transformer 3c side, the standby state is normally maintained, and when the transformer 3b is inoperable, the transformer 3c plays a preliminary role of replacing the transformer operation.

In addition, on the TR 3a side electrically connected to the main high voltage distributor 2, after converting the high voltage power output from the main high voltage distributor 2 side to low voltage, the low voltage power of the transformer is converted into a load distributor 6. ) To supply to the side. Even in this case, the transformer 3d maintains a standby state (Stand-by status) in normal times, and when the transformer 3a is inoperable, the transformer 3d plays a preliminary role of replacing the transformer operation.

Of course, under the operation performance of each TR (3a, 3d), each of the load (8a, 8b, 8c, ..., 8n) that is electrically connected to the load distributor 6 without any problems, the load distributor 6 By utilizing the transformed power of the TR (3a, 3d) side distributed from the), it is possible to perform the operation given to it normally.

In addition, the TR (11, 12) side, which is electrically connected to the sub high voltage distributors (9, 10), also transforms the high voltage power output from the sub high voltage distributor (9, 10) side to a low voltage, and then converts the low voltage power that has been transformed. It serves to supply to the electric device control board (11a, 12a) side.

Under such a conventional system, as described above, the high voltage power output from the main high voltage distributor 2 side is transformed into low pressure on the TR 3a and TR 3d sides electrically connected to the main high voltage distributor 2. Then, by performing the role of supplying the transformed low-voltage power to the load distributor 6 side, the operation of each load (8a, 8b, 8c, ..., 8n) electrically connected to the load distributor 6 In this case, the ship operating principal design the capacity of TR (3a) in consideration of the number of all loads (8a, 8b, 8c, ..., 8n) connected to the load distributor 6, The capacity of TR 3d, which is a preliminary means of TR 3a, is also designed in consideration of the number of all loads 8a, 8b, 8c, ..., 8n connected to the load distributor 6.

That is, if six loads are connected to the load distributor 6, the ship operating body design the capacity of TR (3a) in consideration of all six loads connected to the load distributor 6, The capacity of the TR 3d is also designed to consider all six loads connected to the load distributor 6 (which is predicted if the capacity of the TR 3a and TR 3d is insufficient). This can be caused by a very serious problem in which the operation of the load cannot be performed normally due to the unsuccessful power supply reduction).

Of course, when the capacities of TR 3a and TR 3d are designed in consideration of the number of all loads 8a, 8b, 8c, ..., 8n connected to the load distributor 6, TR (3a) and The capacity of TR (3d) is inevitably very excessive in proportion to the number of loads (8a, 8b, 8c, ..., 8n), after all, the ship operator subject to the problem that the overall power operating efficiency is greatly reduced There is no choice but to do it.

In particular, when the capacity of TR (3a) and TR (3d) has a very excessive value in proportion to the number of loads (8a, 8b, 8c, ..., 8n), these TR (3a) and TR (3d) and The electrical connection cable 4 which electrically connects the load distributor 6 also has to increase its cross-sectional area significantly in accordance with the capacity increase of the TR 3a and the TR 3d. In addition to the problems caused by the increase in the capacity of 3a and TR 3d, various problems due to the increase in the cross-sectional area of the electrical connection cable 4, for example, the overall manufacturing cost of the ship and the accompanying costs are greatly increased. In addition, even the problem of great difficulty in wiring work and the problem of significantly reducing the free space inside the hull will have to be added.

Of course, if the cross-sectional area of the electrical connection cable 4 becomes excessively large due to the capacity increase of the TR 3a and the TR 3d, the load 8a, The damage probability of 8b, 8c, 8n) is inevitably considered. As a result, an expensive breaker 7 for blocking excessive supply of power is required to be installed in the load distributor 6. In addition to the various problems described above, there is no choice but to suffer from another problem in which the overall distribution management cost greatly increases.

Korean Patent Publication No. 10-2010-51157 (Name: power supply device of the ship's residence) Korean Patent Publication No. 10-2012-209 (Name: LNG FPSO Vessel with Separated High Voltage Switchgear)

Accordingly, an object of the present invention is to induce a plurality of load distributors, induce a reduction in the number of loads in charge of the load distributors, and then, unlike the conventional ones, the load distributors from the main high voltage distributor to the plurality of sub-high voltage distributors. In addition, each TR is electrically connected to each of the sub-high voltage distributors, and an additional TR for lowering and transforming the supply voltage of the sub-high voltage distributor is provided between the plurality of sub-high voltage distributors and each load distributor. The capacity can be naturally reduced according to <reduce the number of connected loads that the load distributor was in charge of distribution> without any problems, and various problems caused by the increase in the capacity of the TR on the ship operator side, for example, power operation efficiency. Deterioration problem, shorter area of electrical connection cable, additional breaker door The guide is to help you avoid problems.

Other objects of the present invention will become more apparent from the following detailed description and the accompanying drawings.

In order to achieve the above object, the present invention provides a ship distribution system installed in a ship, comprising: a main high voltage distributor electrically connected to a power source; A plurality of sub high voltage distributors electrically connected to the main high voltage distributor; A plurality of load distributors electrically connected to the sub-high voltage distributors and for distributing power supplied from the sub-high voltage distributors to a load side electrically connected thereto; And a transformer electrically connected to the sub high voltage distributor and the load distributor, the transformer converting the high voltage power output from the sub high voltage distributor side into a low pressure and supplying the transformed low voltage power to the load distributor side. Disclosed is a ship power distribution system.

In the present invention, after plural load distributors are induced to induce a reduction in the number of loads in charge of the load distributor, the load distributor is moved from the main high voltage distributor to the number of sub-high voltage distributors, unlike the conventional one. In order to electrically connect the high voltage distributor to the respective high voltage distributors, and to further subtract the sub-high voltage distribution side supply power between the plurality of sub high voltage distributors and the respective load distributors, a TR is provided. The capacity of can be naturally reduced according to <reduce the number of connection loads that the load distributor was in charge of distribution>, after all, various problems caused by the increase in the capacity of the TR, for example, power Problem of deterioration of operation efficiency, increase of short area of electric connection cable, breaker It is possible to easily avoid such additional installation problems.

1 is an exemplary view conceptually showing a ship power distribution system according to the prior art.
Figure 2 is an exemplary diagram conceptually showing a ship power distribution system according to the present invention.

Hereinafter, with reference to the accompanying drawings, it will be described in more detail the ship distribution system according to the present invention.

As shown in Fig. 2, under the ship distribution system 50 system according to the present invention, the power supplied from the power source 21 is from the <main high voltage distributor 22>, <from the main high voltage distributor 22 side. A plurality of sub-high voltage distributors 29 and 30 which are branched and supplied with power, and &lt; low voltage distributors that are powered from the main main high voltage distributor 22 side while having a structure electrically connected to the main high voltage distributor 22; (5)>, <Electric device connecting boards 31a and 32a that are electrically connected to the plurality of sub-high voltage distributors 29 and 30 and are supplied with power from the sub-high voltage distributors 29 and 30. Going through distribution channels

At this time, the transformer 23b side electrically connected to the main high voltage distributor 22 converts the high voltage power output from the main high voltage distributor 22 side into low pressure, and then converts the low voltage power that has been transformed into the low voltage distributor 5. It will serve to supply the side. In this case, in the transformer 23c side, the standby state is normally maintained, and when the transformer 23b is inoperable, the transformer 23c plays a preliminary role of replacing the transformer operation.

In addition, in the TR (31, 32) side electrically connected to the sub high voltage distributors 29 and 30, after converting the high voltage power output from the sub high voltage distributors 29 and 30 to low pressure, the low voltage power of which the transformer was transformed was completed. It serves to supply to the electrical device connecting board (31a, 32a) side.

Under this infrastructure, the present invention takes measures to pluralize the load distributor into a plurality of load distributors 46 and 48, for example.

Of course, in the case where the load distributors are pluralized into a plurality of load distributors 46 and 48, the number of loads that each load distributor 46, 48 is responsible for power distribution is in the case where the load distributors are arranged in a single manner. It can be greatly reduced in comparison.

For example, if the load distributor was responsible for distribution of a total of six loads in a state where the load distributors were arranged in a single arrangement, according to the practice of the present invention, when the load distributors 46 and 48 are pluralized into two, The loads in which the plurality of load distributors 46 and 48 are responsible for distribution can be reduced to the loads 49a, 49b and 49c and the loads 49d, 49e and 49f (that is, to three each). will be.

In this way, the load distributor is pluralized into the load distributor 46 and the load distributor 48 so that each load distributor 46, 48 is responsible for distribution of each load 49a, 49b, 49c, 49d, 49e. In the present invention, the number of load distributors 46 and 48 is moved from the main high voltage distributor 22 to the plurality of sub high voltage distributors 29 and 30 in the present invention, and the sub high voltage distributor 29, 30) to electrically connect the respective sub-high voltage distributors 29, 30 and the load distributors 46, 48, and to lower the power supply at the sub-high voltage distributors 29 and 30, respectively. Additional measures will be taken to install TRs 41 and 42.

Of course, under the additional installation of each TR (41, 42), each load (49a, 49b, 49c, 49d, 49e, 49f) that was electrically connected to each load distributor 46, 48 without any problems By utilizing the transformer power of the TR (41, 42) side distributed from the load distributor (46, 48), it is possible to perform the operation given to itself normally.

As a result, under this measure, the ship distribution system 50 of the present invention has a <sub main high voltage distributor 22 electrically connected to the power source 21>, <a plurality of subs electrically connected to the main high voltage distributor 21. Loads 49a and 49b electrically connected to the high voltage distributors 29 and 30, and the sub-high voltage distributors 29 and 30, respectively, and electrically connected to power supplied from the sub-high voltage distributors 29 and 30; A plurality of load distributors 46,48 that distribute to 49c, 49d, 49e, and 49f), &lt; sub-voltage distributors 29,30 and load distributors 46,48 are electrically connected to each other, After converting the high-voltage power output from the distributors 29 and 30 to low voltage, and then supplying the transformed low-voltage power to the load distributors 46 and 48, TR (41, 42), etc. Get drunk.

Perhaps of course, according to the above-described measures, the loads for which the plurality of load distributors 46 and 48 are responsible for power distribution are respectively loaded into the loads 49a, 49b and 49c and the loads 49d, 49e and 49f (ie, respectively). In the situation of being reduced to three), when designing the capacity of the TR 41 that is electrically connected to the load distributor 46 on the ship operator side, the loads 49a, 49b, 49c, 49d, 49e, and 49f are all Without consideration, only the loads 49a, 49b, and 49c in which the load distributor 46 was responsible for power distribution may be selectively considered. As a result, the TR 41 considerably reduces its capacity compared to the conventional one. I can hold it.

In addition, according to the above-described measures, the loads to which the plurality of load distributors 46 and 48 are responsible for power distribution are respectively loaded into the loads 49a, 49b and 49c and the loads 49d, 49e and 49f (that is, three respectively). In the reduced situation, when designing the capacity of the TR 51 electrically connected to the load distributor 48 on the ship operator side, it is necessary to consider all the loads 49a, 49b, 49c, 49d, 49e, and 49f. Without consideration, only the loads 49d, 49e, and 49f that were responsible for the distribution of the load distributor 48 were to be selectively considered. As a result, the TR 42 also retained its capacity at a significantly reduced value as compared to the prior art. You can do it.

Of course, in accordance with the above-described implementation of the present invention, when each TR (41, 42) is able to maintain a reduced capacity of the appropriate scale, the ship operating subject can flexibly enjoy the effect of the overall power operating efficiency greatly increased. It becomes possible.

In particular, in accordance with the practice of the present invention, when each TR (41, 42) is able to maintain a reduced capacity of the appropriate scale, electrically connecting each TR (41, 42) and the load distributor 46, 48 The electrical connection cable 51, which has been used, can also be significantly reduced in stage area in accordance with the capacity reduction of each TR (41, 42). Consequently, under the implementation environment of the present invention, the electrical connection cable on the ship operator side Various problems due to the increase in the area of (51), for example, the overall manufacturing cost of the ship and the accompanying costs greatly increase, the problem of great difficulty in wiring work, the problem of significantly reducing the free space inside the hull, etc. Can be easily avoided.

Of course, when the cross-sectional area of the electrical connection cable 51 can maintain an appropriate scale in accordance with the capacity reduction of each TR (41, 42), the load (49a, 49b) due to the excessive supply of power on the ship operating subject side It is easy to escape the damage probability of 49c, 49d, 49e, and 49f. Consequently, there is no need to install an expensive breaker to block excessive supply of power in each load distribution 46 and 48. By doing so, the effect of greatly lowering the overall distribution management cost can be flexibly enjoyed.

As described above, in the present invention, the load distributors 46 and 48 are plural and the number of loads 49a, 49b, 49c, 49d, 49e, and 49f in charge of the load distributors 46 and 48 is reduced. The load distributors 46 and 48 are then moved from the main high voltage distributor 22 to the plurality of sub high voltage distributors 29 and 30, and electrically connected to the sub high voltage distributors 29 and 30, respectively. TR (41,42) for lowering and transforming the supply power of the sub-voltage distributors 29 and 30 between the plurality of sub-voltage distributors 29 and 30 and the respective load distributors 46 and 48 as well as the connection. In the implementation environment of the present invention, the capacity of each TR (41, 42) is not a problem, and the connection loads 49a, 49b, 49c, and 49d of the load distributors 46 and 48 are responsible for distribution. , 49e, 49f) can be reduced and designed naturally according to the number of reduction> Who had a variety of problems, such as problems of lowering the operating efficiency of power, provided that the area increases the problem of electrical cables, such as the addition of a breaker installation problems and easy access is possible can be avoided.

At this time, as shown in Figure 2, under the implementation environment of the present invention, each load distributor 46, 48 to form a structure that is electrically connected to each other, after all, under this electrical connection situation, each load distribution On the (46, 48) side, it is possible to stably support the performance of each of the loads (49a, 49b, 49c, 49d, 49e, 49f) electrically connected to itself through a close linkage operation.

This invention has an overall useful effect in many fields that require the management of TR.

Although specific embodiments of the present invention have been described and illustrated above, it is to be understood that the present invention may be embodied in many other specific forms without departing from the spirit or essential characteristics thereof.

Such modified embodiments should not be understood individually from the technical idea and viewpoint of the present invention, and such modified embodiments should be included in the appended claims of the present invention.

1,21: power source 2,22: mains high voltage distributor
3a, 3b, 3c, 3d, 11, 12, 23a, 23b, 31, 32, 41, 42: transformer (TR)
4,51: Electrical connection cable 5: Low voltage distributor 6,46, 48:: Load distributor
7: Breaker 8a, 8b, 8c, 8n, 49a, 49b, 49c, 49d, 49e, 49f: load
9,10,29,30: Sub high voltage distributor 11a, 12a, 31a, 32a: Electrical equipment connection board

Claims (2)

In the ship distribution system installed in the ship,
A main high voltage distributor electrically connected to the power source;
A plurality of sub high voltage distributors electrically connected to the main high voltage distributor;
A plurality of load distributors electrically connected to the sub-high voltage distributors and for distributing power supplied from the sub-high voltage distributors to a load side electrically connected thereto;
And a transformer electrically connected to the sub high voltage distributor and the load distributor, the transformer converting the high voltage power output from the sub high voltage distributor side into a low pressure and supplying the transformed low voltage power to the load distributor side. Ship distribution system, characterized in that. The ship distribution system according to claim 1, wherein the load distributors are electrically connected to each other.

Images