一种新型的直流微网光伏变换器电压调节与孤岛检测控制方法

2015 International Conference on Power, Instrumentation, Control and Computing (PICC) Pub Date : 2015-12-01 DOI:10.1109/PICC.2015.7455785

K. Anoop, M. Nandakumar

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引用次数: 1

摘要

本文介绍了利用单周期控制(OCC)实现光伏板最大功率点跟踪、母线电压调节和孤岛检测的方法。可再生能源的发电高度依赖于大气条件，因此它们在本质上是非常混乱的。因此，快速控制成为用于电力调节的变流器的基本要求。传统上，PI控制器用于控制在这种系统中使用的电力电子电路。但是PI控制器需要很少的切换周期来跟踪工作条件的变化，而OCC可以在一个切换周期内跟踪它们。此外，与PI相比，OCC具有更好的瞬态响应。本文采用基于短电流脉冲的最大功率点跟踪。本文还介绍了一种基于输入电流扰动的岛模检测方法。MATLAB/Simulink仿真结果验证了OCC的性能。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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A novel control method for voltage regulation and island detection of a DC microgrid connected photo voltaic converter system

This paper presents maximum power point tracking, bus voltage regulation and island detection of a photo voltaic panel using One Cycle Control (OCC). The power generation by renewable energy sources depends highly on atmospheric conditions and due to that they are very chaotic in nature. Hence rapid control becomes an essential requirement for the converters used for power conditioning. Conventionally PI controller is used for the control of power electronic circuits employed in such systems. But PI controller takes few switching cycles to track the variations in operating conditions while the OCC can track them within one switching cycle. Moreover compared to PI, OCC has a better transient response. Short current pulse based maximum power point tracking is used here. An island mode detection based on input current perturbation is also explained. MATLAB/Simulink simulation results demonstrate the performance of OCC.

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来源期刊

2015 International Conference on Power, Instrumentation, Control and Computing (PICC)

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