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Modeling and Stability Analysis of a Fixture-Centric Airfield Lighting System

机译：夹具中心机场照明系统的建模与稳定性分析

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摘要

With the rapid development of the LED lighting and power electronics, LED based airfield lighting systems are currently being deployed. For better optical performance of LEDs, fixture-centric airfield lighting system architectures are being investigated. In these systems each lighting fixture includes a power electronic converter which regulates LED brightness. Since tightly regulated power converters behave as constant-power loads which may introduce instability in power electronics-based power systems, the stability assessment of the fixture-centric airfield lighting system becomes prudent. In this paper, the system-level analysis of a notional single-phase ac power-electronics-based airfield lighting system is carried out, and a stability criterion involving the number of fixtures which can be driven is developed. The system qd-axis average-value model is first derived and linearized to generate a small-signal model. Next, the application of the generalized Nyquist stability criterion predicts the small-signal stability about a given operating point. Finally, the proposed model and analysis is experimentally verified with using a proposed qd impedance measurement method. In summary, this paper develops methodologies for single-phase system analysis from both design and field application perspectives.
机译：随着LED照明和电力电子产品的快速发展，目前正在部署LED基于LED的机场照明系统。为了更好的LED光学性能，正在研究以夹具为中心的机场照明系统架构。在这些系统中，每个照明夹具包括电力电子转换器，该电力电子转换器调节LED亮度。由于紧密调节的功率转换器表现为可能在基于电力电子的电力系统中引入不稳定性的恒定功率负载，因此夹具中心机场照明系统的稳定性评估变得谨慎。在本文中，执行了一个名义单相AC电力 - 电子基机场照明系统的系统级分析，开发了涉及可以驱动的夹具数量的稳定标准。首先导出系统QD轴平均值模型，以产生小信号模型。接下来，广义奈奎斯特稳定性标准的应用预测了关于给定操作点的小信号稳定性。最后，使用所提出的QD阻抗测量方法进行实验验证所提出的模型和分析。总之，本文开发了来自设计和现场应用程序视角的单相系统分析的方法。

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