CN217462412U - Communication system of wind turbine generator and wind turbine generator - Google Patents

Abstract

The utility model discloses a wind turbine generator system's communication system and wind turbine generator system, include: the DP communication module is connected with a main control master station of the wind turbine generator; the DP communication module is connected with the variable-pitch slip ring through at least one repeater; the variable-pitch slip ring is connected with a variable-pitch system of the wind turbine generator. The utility model discloses an electric isolation function of repeater filters the interference or other abnormal signal on the DP communication circuit to optimize the DP signal quality of DP communication module output, increase the reliability of communication, reduce the wind turbine generator system trouble.

Description

Communication system of wind turbine generator and wind turbine generator

Technical Field

The utility model relates to a wind power generation technical field, concretely relates to wind turbine generator system's communication system and wind turbine generator system.

Background

With the increasing development of energy crisis and environmental crisis, wind power generation technology has been rapidly developed as a clean energy technology. The variable pitch system is one of important components on the wind turbine generator system, and the variable pitch system controls the output power of the fan by adjusting the pitch angle of the blades, so that the stability of the output power and the rotating speed of the wind turbine generator system is ensured. The variable pitch control system of the wind turbine mainly comprises: the communication between the variable pitch controller and the main controller adopts a DP line and a variable pitch slip ring to carry out field bus transmission. However, due to the fact that electronic devices in the fan are numerous, electromagnetic interference is large in the process of controlling the variable pitch system, the transmission distance is long, and signal loss is easily caused.

SUMMERY OF THE UTILITY MODEL

Therefore, the to-be-solved technical problem of the utility model lies in overcoming the in-process that is being become oar system control among the prior art and receiving the very big defect of electromagnetic interference to a communication system and a wind turbine generator system of wind turbine generator system are provided.

In order to achieve the above purpose, the utility model provides a following technical scheme:

in a first aspect, a communication system for a wind turbine generator system includes: the system comprises a DP communication module, a variable pitch slip ring and at least one repeater, wherein the DP communication module is connected with a master control station of the wind turbine generator; the DP communication module is connected with the variable-pitch slip ring through at least one repeater; the variable-pitch slip ring is connected with a variable-pitch system of the wind turbine generator.

In one embodiment, when the communication system comprises at least two repeaters, all the repeaters are connected in series.

In an embodiment, the communication system of the wind turbine further includes: and the power supply is connected with the repeater.

In a second aspect, an embodiment of the present invention provides a wind turbine, including: the wind turbine generator system comprises a communication system of the wind turbine generator system, a master control master station and a pitch control system, wherein the master control master station is connected with the pitch control system through the communication system of the wind turbine generator system.

In one embodiment, the wind turbine further comprises: the system comprises an engine room substation and a photoelectric converter, wherein the engine room substation and a main control main station are both provided with the photoelectric converter; the DP communication module is arranged in the cabin substation and is connected with a photoelectric converter in the cabin substation; the main control main station is communicated with the cabin substation through a photoelectric converter.

In one embodiment, the wind turbine further comprises: the low-voltage power distribution cabinet substation, the water-cooling cabinet substation and the converter substation are connected in sequence and then connected with the main control station.

The utility model discloses technical scheme has following advantage:

in the communication system of the wind turbine generator, the DP communication module is connected with the main control station of the wind turbine generator; the DP communication module is connected with the variable-pitch slip ring through at least one repeater; the variable-pitch slip ring is connected with a variable-pitch system of the wind turbine generator. The utility model discloses an electric isolation function of repeater filters the interference or other abnormal signal on the DP communication circuit to optimize the DP signal quality of DP communication module output, increase the reliability of communication, reduce the wind turbine generator system trouble.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1(a) and fig. 1(b) are schematic diagrams of a specific example of a communication system of a wind turbine generator according to an embodiment of the present invention;

fig. 2 is a schematic diagram of another specific example of a communication system of a wind turbine generator according to an embodiment of the present invention;

fig. 3 is a schematic diagram of a specific example of a wind turbine generator according to an embodiment of the present invention;

fig. 4 is a schematic diagram of another specific example of a wind turbine generator according to an embodiment of the present invention;

fig. 5 is a schematic diagram of another specific example of a wind turbine generator according to an embodiment of the present invention.

Detailed Description

The technical solutions of the present invention will be described more clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; the two elements may be directly connected or indirectly connected through an intermediate medium, or may be communicated with each other inside the two elements, or may be wirelessly connected or wired connected. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

Example 1

The embodiment of the utility model provides a communication system of wind turbine generator system, as shown in fig. 1(a) and fig. 1(b), include: DP communication module 11, become oar sliding ring 12 and at least one relay 13.

Specifically, the DP communication module 11 is connected to a master control station of the wind turbine; the DP communication module 11 is connected with the variable-pitch slip ring 12 through at least one repeater 13; the variable-pitch slip ring 12 is connected with a variable-pitch system of the wind turbine generator.

Specifically, the DP communication module 11 of the embodiment of the present invention may adopt a computer electronic component such as PROFIBUS-DP. PROFIBUS-DP is used for the fast data exchange in the electric automation and the equipment automation, and has the characteristics of simple setting, low price and powerful function. The base version of DP is DP-V0, and the extended versions are DP-V1 and DP-V2. DP-V0 is used for cyclic data exchange between masters and slaves of the first type, DP-V1 is used primarily in process control applications, and DP-V2 is designed for high speed and high precision motion control for isochronous synchronization and communication between slaves.

Further, DP-V0 is the basic version of PROFIBUS-DP, which can only complete the cyclic data exchange between the master and slave stations, and cannot meet the requirements of functions such as alarm processing and parameter setting in the process control system, nor the requirements of synchronization and isochronous control in the motion control system. DP-V1 was developed specifically for use in process control, and DP-V1 was used for PROFIBUS-PA. The biggest difference with DP-V0 is the addition of non-cyclic data exchanges to accomplish some non-real time data exchanges in process control. DP-V2 was developed for use by PROFIBUS in motion control and applications requiring greater real-time and accuracy. The PROFIdrive uses DP-V2.

It should be noted that, those skilled in the art can select the model of the DP communication module 11 according to the requirement, and the specification is not limited herein.

Specifically, as shown in fig. 1(a) and 1(b), the embodiment of the present invention filters the interference or other abnormal signals on the DP communication loop through the electrical isolation function of the repeater 13 to optimize the DP signal quality output by the DP communication module 11, increase the reliability of communication, and reduce the fault of the wind turbine generator.

Further, as shown in fig. 1(a), when the repeaters 13 are connected in parallel, the repeaters 13 may be mutually standby, and when the repeater 13 currently put into the communication line has a fault, other normal and fault-free repeaters 13 may be selected to put into the communication line; as shown in fig. 1(b), the repeaters 13 are sequentially connected in series to perform filtering, anti-interference and isolation operations for a plurality of times on the DP signal output from the DP communication module 11.

Specifically, the embodiment of the utility model provides an in, communication signal, the power supply between the oar system and the master control main website all adopt to become oar sliding ring 12 control and realize connecting. The so-called variable pitch slip ring 12, also called a rotary electrical interface and an electrical rotary joint, can be used in any system requiring unlimited continuous rotation for transmitting power and data signals from a fixed structure to a rotating structure. Common data transmission modes include RS 485, Profibus-DP, CAN open, Ethernet and the like, and power supplies include 400VAC, 230VAC and 24 VDC.

In a specific embodiment, as shown in fig. 2 (the connection manner in fig. 2 only takes the topology in fig. 1(b) as an example), the communication system of the wind turbine further includes: and a power supply 14, wherein the power supply 14 is connected to the relay 13.

Specifically, the power supply 14 of the embodiment of the present invention is not limited to a DC power supply and an AC power supply, and the topology of the power supply 14 is not limited to a DC-DC converter, an AC-DC converter and a DC-AC converter, and those skilled in the art can select and set the power supply 14 according to the power supply type and the voltage class of the repeater 13.

Example 2

An embodiment of the utility model provides a wind turbine generator system, as shown in FIG. 3, include: the communication system 1, the master control master station 2 and the variable pitch system 3 of the wind turbine generator system in the embodiment 1 are provided, wherein,

specifically, as shown in fig. 3, the master control main station 2 is connected with the pitch system 3 through the communication system 1 of the wind turbine, the power supply device between the pitch system 3 and the master control main station 2 can be connected through the pitch slip ring 12, and the master control main station 2 realizes conventional control of the pitch system 3 through the communication system 1.

In a specific embodiment, as shown in fig. 4 (the connection relationship shown in fig. 4 only takes the topology shown in fig. 1(b) as an example), the wind turbine further includes: a cabin substation 4 and a photoelectric converter 5, wherein,

as shown in fig. 4, the cabin substation 4 and the master control master station 2 are both provided with photoelectric converters 5; the DP communication module 11 is arranged in the cabin substation, and the DP communication module 11 is connected with the photoelectric converter 5 in the cabin substation 4; the main control main station 2 and the cabin substation 4 communicate with each other through the photoelectric converter 5, that is, the main control main station 2 and the DP communication module 11 can communicate with each other through optical signals.

In a specific embodiment, as shown in fig. 5, the wind turbine further includes: the low-voltage power distribution cabinet substation comprises a low-voltage power distribution cabinet substation 6, a water-cooling cabinet substation 7 and a converter substation 8, wherein the low-voltage power distribution cabinet substation 6, the water-cooling cabinet substation 7 and the converter substation 8 are connected with the main control main station 2 after being connected in sequence.

Specifically, the converter cabinet of the wind turbine generator has numerous electrical components, and the temperature greatly affects the operating characteristics of the converter. With the rise of the altitude of the installation position of the onshore wind turbine generator and the development of the offshore high-power wind turbine generator, the requirement on the heat dissipation capacity of a converter in the wind turbine generator is also increased. The air-cooled converter cannot meet the requirements of wind generating sets with severe environment and high power, and the water-cooled converter becomes the mainstream of the wind generating sets. Therefore, the embodiment of the utility model provides a set up water-cooling cabinet sub-station 7 for converter sub-station 8, for the converter carries out the water-cooling heat dissipation.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious changes and modifications can be made without departing from the scope of the invention.

Claims (6)

1. A communication system of a wind turbine generator system, comprising: DP communication module, become oar sliding ring and at least one repeater, wherein,

the DP communication module is connected with a main control master station of the wind turbine generator;

the DP communication module is connected with the variable-pitch slip ring through at least one repeater;

the variable-pitch slip ring is connected with a variable-pitch system of the wind turbine generator.

2. The wind turbine generator communication system according to claim 1, wherein when the communication system comprises at least two repeaters, all repeaters are connected in series.

3. The wind turbine generator communication system according to claim 1, further comprising:

and the power supply is connected with the repeater.

4. A wind turbine, comprising: the communication system, master control station and pitch system of a wind turbine generator set according to any one of claims 1 to 3,

and the master control main station is connected with the pitch control system through a communication system of the wind turbine generator.

5. The wind turbine generator set of claim 4, further comprising: a cabin sub-station and a photoelectric converter, wherein,

the cabin substation and the main control main station are both provided with photoelectric converters;

the DP communication module is arranged in the cabin substation and is connected with a photoelectric converter in the cabin substation;

and the main control main station is communicated with the cabin substation through the photoelectric converter.

6. The wind turbine generator set of claim 4, further comprising: a low-voltage power distribution cabinet substation, a water-cooling cabinet substation and a converter substation, wherein,

and the low-voltage power distribution cabinet substation, the water-cooling cabinet substation and the converter substation are connected in sequence and then are connected with the main control station.

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