兆瓦级双馈风力发电机组控制系统研究与设计

发布时间：2018-01-17 19:21

本文关键词：兆瓦级双馈风力发电机组控制系统研究与设计　出处：《东北大学》2014年硕士论文　论文类型：学位论文

【摘要】：能源危机和环境污染是当今人类所面临要解决的两个重要问题。可再生、绿色能源对于解决这些问题具有重大意义。其中对于风能的利用更是以其诸多突出的优点而备受瞩目,风电技术也成为全世界争相开发的新能源技术。本文研究和设计了 2MW双馈型风力发电机组控制系统。本系统主要包括主控系统、变桨系统、偏航系统等三个主要功能。主控制系统采用PLC控制系统,使机组的控制更加完善,技术更加先进;主控系统和各子系统之间利用CAN总线连接,保证了数据信号与控制信号传输的实时性和完整性。本文给出了风电控制系统中的硬件结构和系统组成,完成了 PLC系统设计、触摸屏应用系统的设计,对偏航系统、变桨系统、雷电保护系统及转速测量、风速测量等功能进行了设计。在硬件系统的基础上,设计了控制系统的软件控制逻辑,包括机组控制的几个主要内容,详细分析了机组控制的主要功能,设计了状态切换、启动、停机、报警故障、加热散热等功能,完成了下位机程序设计,开发了 HMI功能界面。整个控制系统体系结构简洁、易于维护和扩展、响应速度快、控制精确、人机界面友好、机组控制方案合理;实际运行情况良好,系统稳定,操作方便、简易,工作可靠,能够为用户现场创造很好的经济效益。
[Abstract]:Energy crisis and environmental pollution are two important problems to be solved. Green energy has great significance to solve these problems. Among them, the use of wind energy is attracting much attention because of its many outstanding advantages. Wind power technology has also become a new energy technology in the world. This paper studies and designs a 2MW doubly-fed wind turbine control system, which mainly includes the main control system and the variable propeller system. The main control system adopts PLC control system, which makes the control of the unit more perfect and the technology more advanced; The CAN bus connection between the main control system and the subsystems ensures the real-time and integrity of the transmission of the data signal and the control signal. The hardware structure and system composition of the wind power control system are given in this paper. PLC system design, touch screen application system design, yaw system, propeller system, lightning protection system and speed measurement, wind speed measurement and other functions are designed. On the basis of the hardware system. The software control logic of the control system is designed, including several main contents of the unit control, the main functions of the unit control are analyzed in detail, and the state switching, starting, stopping and alarming faults are designed. With the functions of heating and heat dissipation, the program design of the lower computer is completed, and the HMI functional interface is developed. The whole control system is simple, easy to maintain and extend, fast response, accurate control, and friendly man-machine interface. The control scheme of the unit is reasonable; The practical running condition is good, the system is stable, the operation is convenient, the operation is simple, the work is reliable, can create the very good economic benefit for the user spot.
【学位授予单位】：东北大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TP273;TM315

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