基于RT-LAB的风电并网混合仿真系统

Grid-connected Wind Power Hybrid Simulation System Based on RT-LAB

本文设计了一个风电并网混合仿真的实验系统,该实验系统结合实际的风力发电物理设备,以及RTLAB实时电力仿真平台,通过实际系统与数字仿真系统中并网点电压、电流的耦合,将实际风电系统嵌入到电力仿真系统中,完成了风电并网数/模混合仿真的研究。通过观测该实验系统中并网点电压、电流等参数的变化可以研究风力发电系统接入电网后整个电力系统的动态特性,以及两者之间的相互影响和相互作用。本文以双馈感应风力发电机组并网控制为例构建了混合仿真系统,通过实验验证了所设计方案的可行性与有效性。

This paper designs a hybrid simulation experimental system of grid-connected wind power, which combines the actual physical wind power generation and RT-LAB real-time simulation based power grid. Through coupling the voltage and current at the integrated point of the actual system and the digital simulation system, so that the actual wind power generation is embedded in the simulation system, and a digital/physical hybrid simulation is completed for the grid- connected wind power generation. By observing the changes of voltage, current and other parameters at the integrated point in the experimental system, the dynamic characteristics of the entire power system after large-scale wind power connected to the grid can be studied, also the mutual interaction and impact between them. This paper takes double-fed wind turbine grid-connected system as an example, and a hybrid simulation system is built. The experiment results verify the feasibility and effectiveness of the design.