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首页> 外文期刊>Electric power systems research >Dynamic model reduction of power electronic interfaced generators based on singular perturbation
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Dynamic model reduction of power electronic interfaced generators based on singular perturbation

机译：基于奇异摄动的电力电子接口发电机动态模型约简

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摘要

There is a current trend for development of high-power electronics for power systems. To improve the efficiency of large-scale system simulations, order reduction of power electronic interfaced generator models has become an urgent problem to be addressed for the integration of new energy. In this paper, a battery energy storage system (BESS) is taken as the research object. A detailed grid-connected model is established and the time-scale of the eigenvalue sensitivity partition model is introduced. A multi-time scale model and reduced-order processing based on singular perturbation theory are analyzed, and the error is calculated for reduced-order models. Simulation analysis of the different reduced-order models proposed in this paper shows that these models can achieve a balance between computational efficiency and reduced-order accuracy for transient simulation of power electronic interfaced generator grid-connected systems, and can be adapted for efficient simulation of large-scale new energy grid-connected systems.
机译：当前用于电力系统的大功率电子设备的发展趋势。为了提高大规模系统仿真的效率，降低功率电子接口发电机模型的阶数已成为新能源集成亟待解决的问题。本文以电池储能系统（BESS）为研究对象。建立了详细的并网模型，并引入了特征值灵敏度划分模型的时间尺度。分析了基于奇异摄动理论的多时间尺度模型和降阶处理，并为降阶模型计算了误差。本文提出的不同降阶模型的仿真分析表明，这些模型可以在电力电子接口发电机并网系统的瞬态仿真中实现计算效率与降阶精度之间的平衡，并且可以适用于高效仿真。大型新能源并网系统。

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