Monitoring system for large wind power station on the sea

Abstract

A large-sized monitored control System for the wind power generation plant on the sea, pertaining to the field of the computer application technology; this device consists of a data acquisition unit, a mono-computer monitoring data transmission unit, a mono-computer monitoring data processing unit, a multi-computer monitoring data transmission unit and a gross data processing unit. The data acquisition unit collects the technical parameter of the wind power plant; the mono-computer monitoring data transmission unit delivers the data of the data acquisition unit to the mono-computer monitoring data processing unit; the mono-computer monitoring data processing unit can process the data from the mono-computer monitoring data transmission unit; the multi-computer monitoring data transmission unit delivers the data processed by the mono-computer monitoring data processing unit to the gross data processing unit; the gross data processing unit can process the data from the multi-computer data transmission unit. The man-machine operating interface is introduced to send the control order to the mono-computer monitoring data processing unit as per the actual demand of the operation. This utility model is provided with a simple structure and a high practicability as well as lowers the manufacturing cost of the wind power plant.

Description

technical field [0001] The invention relates to a system in the field of computer application technology, in particular to a monitoring system for a large-scale offshore wind farm. Background technique [0002] Offshore wind power generation has become an important direction of wind power generation. In 2006, the cumulative installed capacity of offshore wind power in the world was 908,640 kW / 432 units. The 100,000 kW offshore wind farm of Shanghai Donghai Bridge, my country's first offshore wind farm project, is also planned to be connected to the grid for power generation in 2009. Cixi, Linhai, Daishan, Yancheng, Jiangsu, and Qingdao, Shandong have built offshore wind farms, with cumulative installed capacity exceeding 2 million kW. The establishment of a large-scale offshore wind farm manufacturing execution system aims to make full use of the real-time online data of wind speed, wind direction, and wind turbine output obtained from the wind farm and the numerical meteoro...

AI Technical Summary

Problems solved by technology

[0003] At present, most wind farm monitoring systems focus on data collection, and are mainly aimed at one type of wind power generation equipment. They have poor versatility and compatibility, and most of them use wired transmission methods. Therefore, there is an urgent need to develop a large-scale offshore wind farm monitoring system that is based on the Internet and has a variety of communication protocols and multi-point to multi-point remote monitoring functions, and can realize data transmission through wireless local area networks.

[0004] After searching documents of the prior art, it was found that "OPC-based wind farm central monitoring system" published by E Chunliang et al. in "Computer Measurement and Control" (2004, Vol. Research on communication technology”, in which a central monitoring system for wind farms based on OPC technology is proposed. The specific method is: PROFIBUS S7 communication function based on OPC technology. The connection adopts the asynchronous communication design method under the event-driven mode, but because this method is only designed for the Siemens controller PLC300 series, it is not suitable for the construction and operation of large-scale wind farms, and it cannot solve the problems adopted by different wind turbine manufacturers in large-scale wind farms. The communication protocol is not the same, the application is limited, it is difficult to extend to the current large wind farms

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