含双馈型风电场接入的电力系统小干扰稳定分析研究

发布时间：2018-06-21 21:49

本文选题：双馈型风力发电机 + 机电振荡模式　；参考：《广西大学》2014年硕士论文

【摘要】：作为可再生能源的一个重要分支,风力发电已成为目前新能源发电中技术最成熟、应用规模最大和商业化前景最好的发电方式之一。其中,双馈型风力发电机成为目前电力工业界应用最广泛的变速恒频风力发电机组。论文首先介绍了通用电气公司GE1.5MW双馈型风力发电机的整体结构和工作原理,详细阐述了双馈型风力发电机各控制模块的机理和作用,建立了双馈型风电场等效模型。在加拿大PowerTech公司开发的DSAToolsTM-SSAT软件仿真环境下,以两区域4机11节点系统和IEEE10机39节点系统为算例,研究风电场取代同步发电机和风电场直接并网情况下,风电场不同出力运行方式对电力系统机电振荡模式和小干扰稳定性的影响,并得出了一些有意义的结论。论文进一步以IEEE10机39节点系统为算例,基于三种功率传输模式,不同负荷模型和不同扰动场景时,探讨无风电场接入、风电场取代同步发电机和风电场直接并网情况下小干扰稳定约束下系统极限传输容量问题。数值仿真结果表明：在不同负荷模型、功率传输方式下,考虑小干扰稳定约束,双馈型风电场的接入对电力系统极限传输容量有一定的影响。
[Abstract]:As an important branch of renewable energy, wind power generation has become one of the most mature technology, the largest application scale and the best commercialization prospect in the new energy generation. Among them, doubly-fed wind turbine has become the most widely used variable speed constant frequency wind turbine in power industry. This paper first introduces the whole structure and working principle of GE 1.5MW wind turbine, expounds in detail the mechanism and function of each control module of the doubly-fed wind turbine, and establishes the equivalent model of double-fed wind farm. In the DSAToolsTM-SSAT software simulation environment developed by PowerTech Company of Canada, taking the 4-machine 11-bus system and the IEEE 10-machine 39-bus system as examples, this paper studies the situation that wind farm replaces synchronous generator and wind farm. The influence of different operating modes of wind farm on the mode of electromechanical oscillation and the stability of small disturbance of power system is discussed, and some meaningful conclusions are obtained. In this paper, based on three power transmission modes, different load models and different disturbance scenarios, the access of wind farm is discussed with the example of IEEE10 39-bus system. Wind farms replace synchronous generators and wind farms in the case of direct grid connection, and limit the transmission capacity of the system under the constraint of small disturbance stability. The numerical simulation results show that under different load models and power transmission modes, considering the stability constraints of small disturbance, the access of double-fed wind farm has a certain effect on the limited transmission capacity of power system.
【学位授予单位】：广西大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TM614

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