Research And Development Of Measurement And Control System For Wind Turbine Test-bed

With the outbreak of the global energy crisis, wind power generation has become one of the most important technology in the new energy area, and the research of wind turbine test-bed also became an important research hotspot in many countries. The wind turbine test-bed is a testing equipment used to undertake a comprehensive test projects. It used the validation test of power curve and grid cut-in control state to check whether the measured object meets the design requirements.This project comes from a practical project for a wind energy enterprise. The preliminary design of mechanical parts have been completed, so the main task of this thesis is to develop a Networked Measure & Control system. Networked Measure & Control system is an important research direction of Measure-Control system. Networked Measure & Control system can realize the long-distance distributed measurement and control, which can reduce the cost of the testing system, enhance the production efficiency and give the information sharing. It mainly use the special Fieldbus Measure & Control system to show its characteristic. Therefore, the thesis used several standard industry Fieldbus and industrial monitoring and control software interface communication module to study the implementation of the network control system. This system have been applied on the actual project.This thesis firstly point out the important test items and functional verification demands for wind turbine. Secondly, I have taken a theoretical research about simulation of wind turbine output characteristic based on the test-bed environment, I have established a wind speed model and the mathematical model of wind turbine output characteristic, then I built a software and hardware environment for wind wheel simulation. It will ensure the wind turbine can simulate the real wind field in the factory environment. Finally, I use the hardware and software design to fully embody the characteristics of the advanced Networked Measure-Control system. In terms of hardware design, the main idea contains three layered network: distributed sensor network layer, middle hardware controller layer and the upper man-machine interface layer. The test-bed used several fieldbus to achieve interaction between these hardware levels. The software system design mainly focused on network communication interface and man-machine interaction, There are a lot of work about the hardware communication interface programming and debugging.In the end of this thesis, we analyzed the test results about wind turbine power curve and the relevant waveform datas about wind regime and grid cut-in control in the test-bed environment. These result also proved the success of the development of the test-bed for Wind Turbine. This system has a cutting-edge design concept, and it has the integration of a large number experience of wind power industry and advanced technology in industrial control. It is a full-order system in all aspects. Many jobs are original, so it can serve as a industry-related design reference for designer associated with wind power industry.