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arXiv 1802.00799eess.SYcs.SY
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风力发电机系统的全阶与降阶状态空间建模

Full- & Reduced-Order State-Space Modeling of Wind Turbine Systems with Permanent-Magnet Synchronous Generator

Technische Universität München(慕尼黑工业大学);Karlsruhe Institute of Technology(卡尔斯鲁厄理工学院)

Christoph M. Hackl, Martin Pfeifer, Korbinian Schechner, Pol Jané-Soneira, Sören Hohmann

AI总结:

本文提出了一种针对永磁同步发电机风能转换系统(WECSs)的物理状态空间模型,考虑了所有影响系统功率输出的动力学效应,包括功率电子器件的切换,并通过结构化模型降阶过程推导出两种降阶模型,通过数值模拟验证了模型的有效性。

摘要:

风能是当今能源供应的重要组成部分,也是当今世界增长最快的电力来源之一。准确的风能转换系统(WECSs)模型对于当前和未来能源系统的分析和控制设计至关重要。现有的面向控制的WECSs模型受到无结构简化的影响,这些简化在文献中尚未讨论。因此,本文技术说明提出了一个详细的物理状态空间模型的推导,用于永磁同步发电机WECSs。该物理模型考虑了所有显著影响系统功率输出的动力学效应,包括功率电子器件的切换。或者,该模型以(a,b,c)-和(d,q)-参考框架进行公式化。其次,本文提出了完整的控制和运营管理系统,用于风区II和III以及这些区域之间的过渡。该控制考虑了实际效果,如输入饱和和积分风速。第三,通过结构化模型降阶过程,推导出两种复杂度降低的WECS状态空间模型:非切换模型和非切换降阶模型。通过数值模拟研究验证和比较了这些模型的有效性。

英文摘要:

Wind energy is an integral part of nowadays energy supply and one of the fastest growing sources of electricity in the world today. Accurate models for wind energy conversion systems (WECSs) are of key interest for the analysis and control design of present and future energy systems. Existing control-oriented WECSs models are subject to unstructured simplifications, which have not been discussed in literature so far. Thus, this technical note presents are thorough derivation of a physical state-space model for permanent magnet synchronous generator WECSs. The physical model considers all dynamic effects that significantly influence the system's power output, including the switching of the power electronics. Alternatively, the model is formulated in the $(a,b,c)$- and $(d,q)$-reference frame. Secondly, a complete control and operation management system for the wind regimes II and III and the transition between the regimes is presented. The control takes practical effects such as input saturation and integral windup into account. Thirdly, by a structured model reduction procedure, two state-space models of WECS with reduced complexity are derived: a non-switching model and a non-switching reduced-order model. The validity of the models is illustrated and compared through a numerical simulation study.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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