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首页> 外文会议>2014 International Conference on Power System Technology: Towards Green, Efficient and Smart Power System >A new method of wind turbines modeling based on combined simulation
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A new method of wind turbines modeling based on combined simulation

机译：基于组合仿真的风轮机建模新方法

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Wind power has reached a significant penetration level in the power system worldwide. Grid codes are proposed to safe guard power system with large scale wind power integration. To verify grid code compliance, wind turbine integration characteristics should be verified based on test and simulation results. Therefore, accurate simulation model need to be developed. Since wind turbine model are generally developed to fulfill specific purpose, there are three categories as follow: electromechanical transient model for the study of wind power integration in power system; electromagnetic transient model for the purpose of analyzing wind turbine electrical transient characteristics; and model used to vindicate wind turbine design and control strategy concerning load calculation, mechanical dynamic analyzing etc. However, neither of these models aims at analyzing the interaction between mechanical components and electrical components. This paper introduces a new method of modeling and combined simulating of aerodynamic, mechanical, control and electrical systems in two simulation software platforms. The wide used software tools GH Bladed and MATLAB/Simulink were utilized. According to the method, mechanical, aerodynamic and control (pitch control and torque control) model is specified in GH Bladed, while electrical model (concerning grid, generator and converter) was implemented in MATLAB. In the process of simulation, the two separate models were synchronized via a communication interface which was based on TCP/IP protocol. A 2.5MW wind turbine was modeled and simulated using the presented combined simulation method. Wind turbine simulation results during grid fault were verified with low voltage ride through test data to certify the accuracy of the combined simulation model. Based on the simulation results, mechanical dynamic on blades and drive train during grid fault was presented and the simulation method's further application in analyzing the interact between wind - urbine and grid system was proposed.
机译：风力发电已在全球电力系统中达到很高的渗透水平。提出了电网规范，以保护具有大规模风电集成的电力系统。为了验证电网规范的符合性，应基于测试和仿真结果来验证风力涡轮机的集成特性。因此，需要开发精确的仿真模型。由于风力涡轮机模型通常是为满足特定目的而开发的，因此可分为以下三类：机电瞬态模型，用于研究电力系统中的风电集成;电磁暂态模型，用于分析风力发电机的电暂态特性;用于验证风力涡轮机设计和控制策略的模型，涉及负载计算，机械动力学分析等。然而，这些模型都不旨在分析机械组件和电气组件之间的相互作用。本文介绍了在两个仿真软件平台中对空气动力，机械，控制和电气系统进行建模和组合仿真的新方法。利用了广泛使用的软件工具GH Bladed和MATLAB / Simulink。根据该方法，在GH Bladed中指定了机械，空气动力学和控制（变桨控制和转矩控制）模型，而在MATLAB中实现了电气模型（与电网，发电机和变流器有关）。在仿真过程中，两个单独的模型通过基于TCP / IP协议的通信接口进行了同步。使用提出的组合仿真方法对2.5MW风力发电机进行了建模和仿真。通过低电压穿越测试数据验证了电网故障期间的风力涡轮机仿真结果，以证明组合仿真模型的准确性。根据仿真结果，提出了电网故障时叶片和传动系统的机械动力学特性，并提出了该仿真方法在分析风轮机与电网系统相互作用中的进一步应用。

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