【作者】 王承凯；

【导师】 许洪华； 赵斌；

【作者基本信息】 中国科学院研究生院（电工研究所） ， 电力电子及电力传动， 2003， 硕士

【摘要】 本文作为国家“十五”863子课题—兆瓦级失速型风力发电机组电气控制系统的研制的一部分，首先介绍了风力发电机组控制系统的相关理论，接着提出了兆瓦级失速型风电机组电控系统的总体结构，进行了有关电控系统基本功能与机组控制策略的设计，在此基础上，提出了电控系统硬件与软件的总体实现方案。电量参数采集是电控系统的重要组成部分，本文将串行异步数据通讯技术应用于风电机组的电量采集系统，并收到了较为满意的效果。软并网技术是兆瓦级失速型风力发电机组控制系统的关键技术之一。本文以软并网装置主电路的分析与设计—软并网控制系统的建模与仿真分析—可控硅移相触发软并网控制电路的设计为主线，首先进行了软并网装置主电路部分的分析与设计；然后建立了双绕组风电机组的完整仿真模型，在对模型进行验证的基础上，提出了有效的风电机组软并网控制策略，即机组并网转速与可控硅移相规律应随电机转子加速度进行调节，并进行了风电机组直接并网与软并网过程的仿真分析，得出了相应的结论，为软并网装置的研制提供了必要的参考依据；最后设计了软并网系统的可控硅移相触发控制电路的硬件与软件的实现方案，并提出了系统硬件与软件的抗干扰措施，重点阐述了主要软件模块的实现方案。更多还原

【Abstract】 The thesis is a part of the project of developing an electrical control system (ECS) for mega-watt scale stall-regulated grid-connected wind turbine generator(WTG), which is a key 863 program in the Tenth Five Year Plan.At first the thesis introduces the relevant theory of the control system of wind turbine unit, then the framework of ECS and control strategy of MW stall-regulated WTG, as well as the detailed description of function of ECS are put forward. Afterward the general design of hardware and software of ECS is presented.Electrical parameter gathering is an indispensable part of ECS. In the thesis, the technology of serial asynchronous data communication is applied to the electrical parameter gathering system and a satisfactory result is obtained.Soft cut-in unit is one of the key technologies of the ECS of MW scale stall-regulated WTG. The analysis and design of the main circuit of soft cut-in unit are given first. Then the complete Simulink simulation model of soft cut-in system is established. What is more, an effective control strategy of soft cut-in unit that the cut-in rotate speed of WTG and SCR phase-shifting rule should be adjusted in accordance with the rotate acceleration of rotor is put forward. On the basis that the simulation model is validated, the simulation and analysis of direct cut-in and soft cut-in process of WTG are carried out, which aims at supplying necessary referential material for the R&D of soft cut-in unit. At the same time, some corresponding conclusions are reached. At last the hardware and software design scheme of SCR phase-shifting triggering control circuit of soft cut-in unit as well as its anti-jamming measures is discussed. In addition, the description of some important software models is paid to much attention.更多还原