CN213960093U

CN213960093U - Communication diagnosis system for wind generating set

Info

Publication number: CN213960093U
Application number: CN202120004601.5U
Authority: CN
Inventors: 于重阳; 吕超超; 曾繁礼; 陈方遒; 刘磊; 许明星; 赵录辉; 王艳丽
Original assignee: Inner Mongolia Longyuan Mengdong New Energy Co Ltd
Current assignee: Inner Mongolia Longyuan Mengdong New Energy Co Ltd
Priority date: 2021-01-04
Filing date: 2021-01-04
Publication date: 2021-08-13
Anticipated expiration: 2031-01-04

Abstract

The utility model discloses a communication diagnostic system for wind generating set, including MCU, button, difference chip, USB commentaries on classics serial port module, USB interface, LCD and detection interface, MCU connects button, difference chip, USB commentaries on classics serial port module and USB interface respectively, and USB commentaries on classics serial port module still connects the USB interface, and difference chip still connects the detection interface, utilizes the instrument of the invention, can carry out accurate location to wind generating set communication fault point rapidly. The auxiliary maintenance personnel get rid of the communication trouble for personnel's job schedule reduces personnel working strength, improves wind turbine generator system availability.

Description

Communication diagnosis system for wind generating set

Technical Field

The utility model relates to the field of communication technology, specifically a communication diagnostic system for wind generating set.

Background

The control system of the wind turbine generator system mostly uses communication protocols such as Profibus, Modbus, Canbus, EtherCAT and the like to complete communication among all stations or some devices. Because the environment of the wind turbine generator is harsh and has certain particularity in work, the problem of communication interference is not ignored. The existing wind turbine generator set has the problems that the fault of pitch variation communication is particularly common, the fault of the wind turbine generator set is usually stopped on site due to the fault of pitch variation communication, the problem of a slip ring is one main reason of the fault of pitch variation communication, and the problem of interference is the other relatively troublesome reason of the fault of pitch variation communication.

At present, a wind power plant has no good coping mode for communication faults, the communication transmission speed is high, the flash time is short, and tools such as a conventional multimeter cannot be captured. The resistance detection can be carried out on the communication cable or the communication slip ring only by using an instrument on the site, and the problems existing in a loop are roughly reflected.

The resistance detection method can only roughly reflect the problem of a communication loop, the sensitivity is poor, and in the occasion of quick communication flash, the instrument cannot effectively capture a fault point, and the actual application effect is poor.

In addition, the communication fault of the wind turbine generator is often caused by electromagnetic interference, and the judgment of the interference problem by a conventional resistance detection method is not effective.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a communication diagnostic system for wind generating set to solve the problem that proposes among the above-mentioned background art.

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

a communication diagnosis system for a wind generating set comprises an MCU, a key, a differential chip, a USB-to-serial port module, a USB interface, an LCD and a detection interface, wherein the MCU is respectively connected with the key, the differential chip, the USB-to-serial port module and the USB interface, the USB-to-serial port module is further connected with the USB interface, and the differential chip is further connected with the detection interface.

As a further aspect of the present invention: the model of the MCU is STC8A8K64S412_ LQFP.

As a further aspect of the present invention: the USB-to-serial port module consists of a CH340C chip and a USB interface.

As a further aspect of the present invention: the key comprises 4 independent key circuits.

As a further aspect of the present invention: and the MCU is also connected with an LED indicating lamp.

Compared with the prior art, the beneficial effects of the utility model are that: the instrument can be used for rapidly and accurately positioning the communication fault point of the wind turbine generator. The auxiliary maintenance personnel get rid of the communication trouble for personnel's job schedule reduces personnel working strength, improves wind turbine generator system availability.

Drawings

Fig. 1 is an overall block diagram of the present invention.

Fig. 2 is a circuit diagram of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious 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.

Referring to fig. 1, embodiment 1: the embodiment of the utility model provides an in, a communication diagnostic system for wind generating set, change serial module, USB interface, LCD and detection interface including MCU, button, difference chip, USB, MCU connects button, difference chip, USB respectively and changes serial module and USB interface, and USB changes serial module and still connects the USB interface, and the detection interface is still connected to the difference chip. The keyboard and the LCD realize man-machine communication, the single chip microcomputer realizes a communication packet receiving and sending function by utilizing an integrated serial port function module, in order to simulate serial port communication on a wind turbine generator, the instrument utilizes a difference chip to carry out difference processing on RS232 communication of the single chip microcomputer, processed data packets are transmitted to an instrument at the other end through a tested original piece, and an instrument at the opposite end calculates the packet loss rate of the communication packets through verification and then displays the packet loss rate on the LCD.

For convenient operation, be convenient for climb the tower and carry, the instrument adopts micro _ USB interface power supply, and maintainer utilizes the treasured that charges just can provide the power for equipment. In order to facilitate later debugging and upgrading of the instrument, the instrument is integrated with a USB-to-serial port communication module, and a micro _ USB port of the instrument is connected to a computer, so that a software upgrading function can be realized.

Example 2: on the basis of embodiment 1, as shown in fig. 2, the model number of the MCU is STC8A8K64S412_ LQFP. The USB-to-serial port module consists of a CH340C chip and a USB interface. The key comprises 4 independent key circuits. The MCU is also connected with an LED indicating lamp.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A communication diagnosis system for a wind generating set comprises an MCU, a key, a differential chip, a USB-to-serial module, a USB interface, an LCD and a detection interface.

2. The communication diagnostic system of claim 1, wherein the MCU is STC8A8K64S412_ LQFP.

3. The communication diagnosis system for the wind generating set according to claim 1, wherein the USB to serial port module is composed of a CH340C chip and a USB interface.

4. The communication diagnostic system for a wind turbine generator set according to claim 1, wherein the key comprises 4 independent key circuits.

5. The communication diagnosis system for the wind generating set according to claim 4, wherein the MCU is further connected with an LED indicator light.