Synchronverter small-signal modelling and eigenvalue analysis for battery systems integration

2017 IEEE 6th International Conference on Renewable Energy Research and Applications (ICRERA) Pub Date : 2017-11-01 DOI:10.1109/ICRERA.2017.8191165

A. Rodríguez-Cabero, J. Roldán-Pérez, M. Prodanović

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引用次数: 2

Abstract

The high penetration of renewable energy sources in electrical distribution networks is giving rise to new challenges in the low voltage network operation. Power electronics converters are widely used to connect these energy resources to the grid, and the control technique that emulates the operation of synchronous generators is attracting the attention of researchers in recent years. Such converters are referred to as synchronverters and they have been recently studied in the literature. This paper presents the modelling and analysis of a battery-supported synchronverter connected to the grid. Each dynamic element of the system is modelled in detail and all of them are then joined together forming a state-space model. The eigenvalue analysis was then used to evaluate the synchronverter robustness against variations in the grid inductance and resistance. The theoretical developments were validated experimentally on a 15 kVA prototype of a synchronverter connected to the grid. The small signal modelling procedure showed to be an accurate approach to represent synchronverters dynamics.

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电池系统集成同步器小信号建模与特征值分析

可再生能源在配电网中的高渗透率对低压电网运行提出了新的挑战。电力电子变流器被广泛用于将这些能源接入电网，而模拟同步发电机运行的控制技术近年来引起了研究人员的关注。这种转换器被称为同步转换器，它们最近在文献中进行了研究。本文介绍了一种并网电池供电同步器的建模与分析。对系统的每个动态元素进行详细建模，然后将它们连接在一起形成状态空间模型。然后利用特征值分析来评估同步器对栅极电感和电阻变化的鲁棒性。理论发展在连接到电网的15千伏安同步器原型上进行了实验验证。小信号建模程序表明，是一个准确的方法来表示同步器的动态。

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

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