一种双向电动车充电器的小信号建模与稳定性分析

2017 IEEE 6th International Conference on Renewable Energy Research and Applications (ICRERA) Pub Date : 2017-11-01 DOI:10.1109/ICRERA.2017.8191214

V. Iyer, Srinivas Gulur, S. Bhattacharya

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引用次数: 8

摘要

本文研究了双向并网电动汽车(EV)充电器存在的稳定性问题。所考虑的电动汽车充电器包括一个交流-直流单相有源整流器级和一个直流-直流双有源桥(DAB)级。建立了适合该充电器稳定性分析的小信号模型。为了确保各个阶段的闭环稳定性和防止由于阶段之间的相互作用而引起的任何不稳定，讨论了控制器设计的考虑因素。最后给出了电动汽车充电器硬件样机的实验结果，验证了所提出的模型和控制设计思想。

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Small-signal modeling and stability analysis of a bidirectional electric vehicle charger

This paper addresses the stability challenges that exist in a bidirectional grid connected electric vehicle (EV) charger. The EV charger under consideration comprises of an ac-dc single phase active rectifier stage followed by a dc-dc dual active bridge (DAB) stage. small-signal models suited for stability analysis of this charger are derived. Controller design considerations are discussed in order to ensure closed loop stability of individual stages and to prevent any instability due to interaction between the stages. Experimental results on an EV charger hardware prototype are presented to validate the proposed models and control design considerations.

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2017 IEEE 6th International Conference on Renewable Energy Research and Applications (ICRERA)

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