Communication system for wind power station

Abstract

The invention provides a communication system for a wind power station, which comprises a wind field monitoring central server and a plurality of blower user terminals, wherein the wind field monitoring central server and each blower user terminal are respectively provided with a communication controller; the communication interfaces of the communication controllers are connected end to end through optical fibers to form a ring network; the communication controllers are provided with two pairs of optical fiber communication interfaces which are connected end to end through optical fibers to form a dual-channel optical fiber ring network; or the communication controllers are provided with four pairs of optical fiber communication interfaces which are connected end to end through optical fibers to form a bidirectional dual-channel optical fiber ring network. The invention realizes a self-healing function of a network, prevents node failure in the ring network from causing interruption of network communication, carries out automatic selection on transmission paths in signal transmission, ensures intra-network flow equilibrium, simultaneously reduces equipment investment, improves communication efficiency, ensures accuracy and high efficiency of monitoring, is suitable for various networking modes, improves communication speed, enhances carrying capacity, increases memory space, and has easy large-scale use and popularization.

Description

technical field [0001] The invention relates to the field of wind power generation, in particular to a structure and strategy for communication between wind turbines in a wind field communication network. Background technique [0002] The wind farm communication network is a physical way to remotely monitor the running status of wind turbines, and it is also the link between the wind turbine and the wind farm monitoring system. Whether the communication network works normally directly affects the operation efficiency of the entire wind farm. [0003] Depending on the interface of the main controller, there are two connection methods for wind farms: serial port to optical fiber and Ethernet to optical fiber, which are generally open-loop networks. Since wind farms are usually located in relatively harsh geographical locations, communication equipment and lines are affected by natural conditions. The chances of failure are relatively high. If a single communication line is us...

AI Technical Summary

Problems solved by technology

If the above two wind turbines are to be networked at the same time, since the communication transmission medium in a wind farm network must be the same, it is impossible to connect the above two wind turbines in a wind farm network using the existing technology

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