KR20130061221A - Method for consisting muti-ring network at wind farm and system of the same - Google Patents

Abstract

The present invention relates to a method and system for constructing a multi-ring network in a wind farm that can minimize the number of communication breakdown wind turbines in the event of a network failure by configuring a connection with a plurality of wind turbines.
According to an embodiment of the present invention, as a network configuration method in a wind farm in which a plurality of wind turbines are installed, the plurality of wind turbines are designated as a plurality of subgroups according to preset criteria, and among the specified plurality of subgroups. Provided is a method for constructing a multiple ring network in a wind farm, characterized in that groups belonging to the same group are connected by the same ring.

Description

METHOOD FOR CONSISTING MUTI-RING NETWORK AT WIND FARM AND SYSTEM OF THE SAME}

The present invention relates to a multi-ring network configuration method and system therefor in a wind farm, and more particularly, to configure the connection with a plurality of wind generators in multiple rings to minimize the number of communication breakdown wind turbine generator in the event of network failure. The present invention relates to a method and system for constructing a multiple ring network in a wind farm.

The network system 1 in the wind farm shown in FIG. 1 is located at the left and right sides of the main switch 13 when connecting the plurality of wind turbines 11 and the main switch 13 installed at regular intervals. A plurality of wind turbines are connected to the respective rings R1 and R2.

The network system 1 in such a wind farm is a network system suitable for installing a wind generator on a terrain, for example, a mountainous terrain, which cannot arrange the wind generators in a line.

However, in the case of the offshore wind farms arranged in a row, it is difficult to form an independent ring due to the distance between the generator closest to the land and the generator located at the end.

In addition, when receiving status information or control information for a plurality of wind turbines connected to one ring, when a failure occurs in a plurality of connection lines or a wind turbine communication module, status information or control information for a plurality of wind turbines between failure points may be received. There is a disadvantage that can not be in the communication disconnection state, the number of generators are lost communication.

An object of the present invention is to provide a multi-ring network configuration method and system in a wind farm that can minimize the number of communication breakdown wind turbine generator in the event of a network failure by configuring the connection with a plurality of wind generators in a multi-ring. .

According to an embodiment of the present invention for achieving the above object, as a network configuration method in a wind farm in which a plurality of wind turbines are installed, designating the plurality of wind turbines as a plurality of subgroups according to preset criteria, A method for constructing a multiple ring network in a wind farm, characterized in that groups belonging to the same group among a plurality of designated subgroups are connected by the same ring.

Preferably, the preset criteria are designated as n subgroups from the wind farm control room or the wind turbine close to the land.

It is preferable that the remainder divided by m of the n-specified subgroups are connected to the same group by the same ring.

In addition, according to another embodiment of the present invention, a network system in a wind farm in which a plurality of wind turbines are installed, the plurality of wind turbines designated according to a predetermined criterion by using a main switch connected to the plurality of wind turbines A network system in a wind farm is provided, wherein groups belonging to the same group among subgroups of the same group are connected by the same ring.

According to the present invention, by connecting the plurality of wind turbines with multiple rings, there is an effect of minimizing the number of communication breakdown wind turbines in case of network failure. In particular, in the case of offshore wind farms, which are spaced apart at regular intervals in a row, the network from the nearest generator to the land and the power generation located at the end can be easily constructed.

1 is a view for explaining a network system in a conventional wind farm,
2a to 2d are views for explaining a network system in a wind farm according to an embodiment of the present invention, and
3 is a view showing a state in which a plurality of wind turbines and the main switch is connected by two rings using an eight-core cable.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

2A to 2D are diagrams for explaining a network system in a wind farm according to an embodiment of the present invention.

Referring to FIG. 2A, a network system 2 in a wind farm according to an embodiment of the present invention may include a plurality of wind generators, a main switch 23 connected to a plurality of wind generators, and a main switch 23. It may be configured to include a server 25 for collecting the state information and control information of a plurality of wind power generators.

A plurality of wind power generators generate power by converting the kinetic energy of the wind into mechanical energy to drive the generator.

The plurality of wind turbines are provided with optical terminals, that is, a transmitting terminal and a receiving terminal, respectively. In consideration of the number of cores of the cables connected to the main switch 23, each of the plurality of wind turbines may include a plurality of transmitting terminals and receiving terminals.

The plurality of wind turbines are assigned to the plurality of subgroups G1 and G2 according to preset criteria. The preset criterion may be a criterion for designating n subgrams (n-grams) from the nearby wind generators in the substation or transmission line (on land in the case of an offshore wind farm).

In the present embodiment, the wind turbine generators are described as two subgroups. However, the present invention is not limited thereto, and the two wind turbine generators are assigned to the subgroups in a network configuration, thereby easily forming a ring with the main switch 23. can do.

The remainder divided by m of the n subgroups specified is connected to the same ring. Accordingly, m multiple rings can be configured.

Therefore, in FIG. 2A, two rings R1 and R2 may be configured by designating two wind generators as subgroups and connecting the same subgroups, that is, divided by 2, to the same subgroup among the designated subgroups. Able to know. The number of rings is determined by the number of m. The ring network can be easily configured by adjusting the n and m values.

The n and m values can be adjusted according to the quantity of wind turbines in the wind turbine and the quality assurance policy of the network.

As shown in FIG. 2A, when 4x wind turbines are installed in the wind farm, for example, a second wind turbine adjacent to the first wind turbine WTG01 closest to the ground or the central control room among the 4x wind turbines, for example. Generator (WTG02), jumps two wind turbines, the fifth wind turbine (WTG05) and the neighboring sixth wind turbine (WTG06), jumps two wind turbines, and the 4x-3 wind generator (WTG4x-3) and neighbors Designated 4x-2 wind power generator (WTG4x-2) to the first sub-group (G1), jumped third wind power generator (WTG03), neighboring fourth wind power generator (WTG04), 4x-1 wind power generator (WTG4x-1) and the 4X wind turbine (WTG4x) may be designated as the second subgroup G2.

The wind turbines belonging to the first subgroup G1 constitute the first ring R1, and the wind turbines belonging to the second subgroup G2 constitute the second ring R2.

As shown in FIG. 2A, the fifth wind generator WTG05, the 4x-3 wind generator WTG4x-3, and the end points positioned at the end point, starting from the first wind turbine WTG01, which is a starting point, in the main switch 23, are shown in FIG. Connect to the 4x-2 wind power generator (WTG4x-2), and skip through the 6th wind power generator (WTG06) and the second wind power generator (WTG02), which jumped to the end of the 4x-2 wind power generator (WTG4x-2). The first ring R1 returning to the switch 23 can be configured.

In addition, the main switch 23 is connected to the 4x-1 wind turbine (WTG4x-1) and the 4x wind turbine (WTG4x) located at the end point, starting with the third wind turbine (WTG03), which is the starting point, and the fourth 4x, which is the end point. The second ring R2 may be configured to return to the main switch 23 through the wind power generator (not shown) skipping the wind power generator WTG4x and the fourth wind power generator WT04.

FIG. 2B is the same as that of FIG. 2A in the case of the first ring R1 when the 4x-1 wind turbines are installed in the wind farm, but in the case of the second ring R2, the end point of the 4x-1 wind generator ( WTG4x-1), returns to the main switch 23 via the wind turbine skipped from the beginning 4x-1 wind generator (WTG4x-1).

2C is the same as the description of FIG. 2A in the case of the first ring R1 when 4x-2 wind turbines are installed in the wind farm, but in the case of the second ring R2, the end point of the 4x-4 wind generator ( WTG4x-4), and returns to the main switch 23 through the wind turbine, the fourth wind generator (WTG04), skipped to the fourth wind generator (WTG4x-4).

FIG. 2D illustrates a wind generator in which 4x-3 wind turbines are installed in the wind turbine complex, in which the end point of the first ring R1 skips the 4x-3 wind turbine WTG4x-3, and the sixth wind turbine. Returning to the main switch 23 via the WTG06 and the second wind turbine WTG02, the second ring R12 is the same as the description of FIG. 2C.

The main switch 23 is connected to the network switches in the plurality of wind turbines installed in the wind turbine through the first and second rings R2. As described above, since the first and second rings R1 and R2 and m multirings can be configured, compared to the conventional network system in which one ring or one ring is formed on both sides, the communication interruption generator in case of network failure Quantity can be minimized.

The server 25 may collect state information or control information of the plurality of wind turbines in a clockwise or counterclockwise direction under the control of the main switch 23. Accordingly, the server 25 may display the status information and control information of the plurality of wind turbines on a predetermined screen in real time.

FIG. 3 is a view illustrating a state in which a plurality of wind turbines and a main switch are connected by two rings using an eight-core cable.

Referring to FIG. 3, the main switch 23 is communicatively connected to the server 25. The server 25 is connected to the administrator's terminal 29 and the Internet network 27. The manager's terminal 29 means an input / output device including a function for communicating with the server 25 through the internet network 27, and may be a laptop computer as well as a desktop computer. It may also be connected to the mobile terminal 28 for communicating with the server 25 through the Internet network (27). The portable terminal 28 may include a personal digital assistant (PDA), a web pad, and a smart phone. Through the terminal 29 and the portable terminal 28 of the manager, the status information and control information of the wind power generator installed in the wind farm collected by the server 25 may be monitored in real time.

The internet network 27 can be configured without regard to its communication mode such as wired and wireless.

As shown in FIG. 3, the sub-groups belonging to the same group among the plurality of subgroups G1 and G1 are connected by the same ring by using an 8-core cable, so that the quantity of the communication generator wind turbines in case of communication failure is determined. It can be minimized.

The first ring R1 connecting the first subgroup G1 and the main switch 23 may use, for example, a 4-core cable. The plurality of wind power generators belonging to the first subgroup G1 includes two transmission and reception terminals. The second ring R2 connecting the second subgroup G2 and the main switch 23 may use, for example, a 4-core cable. The plurality of wind turbines belonging to the second subgroup G2 also have two transmission and reception terminals. Accordingly, by receiving the state information of the wind generators belonging to the same group and spaced apart at regular intervals through the transmission and reception terminal of the wind generator, it is possible to transmit the communication failure to the main switch 23. The main switch 23 can collect the state information and control information of the wind turbine in a clockwise or counterclockwise direction according to the information received through the transmission and reception terminal of the wind generator or the preset setting information.

For example, the first wind turbine WTG01 belonging to the first subgroup G1 and positioned first in the first group may receive a state of the third wind turbine WTG03 first located in the second group.

If the first wind turbine WTG01 connected in the clockwise direction does not receive the state of the fifth wind turbine WTG05, the sixth wind turbine WTG06 starts from the second wind turbine WTG02 in the counterclockwise direction. Ring network with the ninth wind turbine (WTG09), the fifth wind turbine (WTG05) and the first wind turbine (WTG01), which were skipped in the group after passing through the tenth wind turbine (WTG10) and the thirteenth wind turbine (WTG13). Can be configured. Accordingly, the server 25 may collect state information and control information of the wind power generator belonging to the same group collected in the counterclockwise direction through the main switch 23.

Therefore, the number of communication breakdown wind turbines can be minimized in the event of a network failure by designating n subgroups and then configuring the remainder divided by m to have the same ring.

The invention being thus described, it will be obvious that the same way may be varied in many ways. Such modifications are intended to be within the spirit and scope of the invention as defined by the appended claims.

2: network system 23: main switch
25: server 27: the Internet
28: portable terminal 29: administrator's terminal

Claims (4)

As a method of constructing a multiple ring network in a wind farm with a plurality of wind turbines,
A method of constructing a multiple ring network in a wind farm, characterized in that the plurality of wind turbines are designated as a plurality of subgroups according to a predetermined criterion, and the groups belonging to the same group among the specified plurality of subgroups are connected by the same ring. . The method according to claim 1,
The preset criterion is a method for constructing a multi-ring network in a wind farm, characterized in that the sub-group is assigned to each of n wind turbines close to land. The method according to claim 2,
A method of constructing a multiple ring network in a wind farm, characterized in that the remainder divided by m of the n specified subgroups is connected to the same group by the same ring. As a network system in a wind farm with a plurality of wind power generators,
A network in a wind farm using a main switch connected to the plurality of wind turbines, wherein the plurality of wind turbines are connected to the same ring among groups belonging to the same group among a plurality of subgroups designated according to preset criteria. system.

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