一种新型的分布式太阳能发电迟滞功率点优化器

IF 0.5 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC

Electrical Control and Communication Engineering Pub Date : 2018-07-01 DOI:10.2478/ecce-2018-0002

Oleksandr Veligorskyi, O. Husev, V. Shevchenko, Kostiantyn Tytelmaier, Roman D. Yershov, R. Kosenko, D. Vinnikov

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引用次数: 5

摘要

摘要提出了一种基于降压变换器的光伏板最大功率点优化器。它可以连接到直流链路分布式能量收集系统，该系统应该在保持恒定的直流链路电压的基础上执行真正的最大功率点跟踪算法。该算法基于无传感器磁滞控制，保证了系统的高效率。本文分析了三种不同的迟滞优化器的实现，包括工作原理和迟滞间隔的调整。对便携式小功率光伏系统在不同负荷和辐照度条件下进行了实验研究。对不同滞后时间区间的最大功率点跟踪效率进行了解析计算，并进行了实验验证，结果表明，在不同的光伏板温度下，最大功率点跟踪效率可达97 ~ 98%。建议将所提出的解决方案用于中小型电力系统中，其中传统最大功率点跟踪转换器的价格非常高，与单个面板的成本相当

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 hysteresis power point optimizer for distributed solar power generation

Abstract This paper proposes a new photovoltaic panel maximum-power-point optimizer based on a buck converter. It can be connected to the DC-link distributed energy harvesting system that should perform the true maximum-power-point tracking algorithm based on maintaining a constant DC link voltage. The algorithm is based on the sensorless hysteresis control and ensures high efficiency. Three different realizations of proposed hysteresis optimizers have been analyzed in the paper, including operation principle and adjustment of hysteresis intervals. An experimental study has been performed for a portable low-power photovoltaic system in case of different loads and irradiance levels. The efficiency of maximum power point tracking has been calculated analytically for different hysteresis intervals and validated by experiment, which proved a 97-98 % efficiency of tracking for different PV panel temperatures. The proposed solution is recommended to be used in small- and medium-sized power systems where the price of the conventional maximum power point tracking converter is very high and is comparable to the cost of the individual panel

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来源期刊

Electrical Control and Communication Engineering ENGINEERING, ELECTRICAL & ELECTRONIC-

自引率

14.30%

发文量

审稿时长

12 weeks