D-Q-0 Synchronous Frame Average Model for Three-Phase Arrays Of Single-Phase PFC Converter Loads

2006 IEEE Workshops on Computers in Power Electronics Pub Date : 2006-07-16 DOI:10.1109/COMPEL.2006.305656

B. Huang, R. Burgos, F. Wang, D. Boroyevich

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引用次数: 5

Abstract

The small-signal modeling of single-phase power factor correction (PFC) converters is limited by the fact that it must deal with time varying AC variables; thus becoming a hindrance for controls design and dynamic interaction analysis. This paper proposes a modeling approach for the analysis of multiple single-phase PFC converters, achieved by aggregating them into a single equivalent three-phase load. This equivalent model may then be readily converted into the d-q-0 synchronous frame where formerly time-varying state variables become DC quantities in steady state. From the resultant average model small-signal analysis may then be easily performed by either analytic or numerical methods. This paper presents the complete derivation of the proposed d-q-0 average model for multiple single-phase PFC converters, using time-domain simulations for verification, exploring as well its small-signal analysis capability by studying the converters input impedance on all three d-q-0 channels. From these results the excellent performance and great usefulness of the model is verified

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单相PFC变换器负载三相阵列的D-Q-0同步帧平均模型

单相功率因数校正(PFC)变换器的小信号建模由于必须处理时变的交流变量而受到限制;从而成为控制设计和动态交互分析的障碍。本文提出了一种分析多个单相PFC变换器的建模方法，通过将它们聚合成一个等效三相负载来实现。这个等效模型可以很容易地转换为d-q-0同步帧，其中以前时变的状态变量变成稳态的直流量。由此得到的平均模型可以很容易地用解析或数值方法进行小信号分析。本文给出了所提出的多个单相PFC转换器的d-q-0平均模型的完整推导，使用时域仿真进行验证，并通过研究转换器在所有三个d-q-0通道上的输入阻抗来探索其小信号分析能力。这些结果验证了该模型的优良性能和实用性

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2006 IEEE Workshops on Computers in Power Electronics

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