A Novel Control Approach for a Single-Inductor Multi-Input Single-Output DC–DC Boost Converter for PV Applications

IF 3.4 3区计算机科学 Q2 COMPUTER SCIENCE, INFORMATION SYSTEMS

IEEE Access Pub Date : 2023-10-13 DOI:10.1109/ACCESS.2023.3324597

Alireza Asadi;Mohammad Saleh Karimzadeh;Xiaodong Liang;Mohammad Saeed Mahdavi;Gevork B. Gharehpetian

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Abstract

In this paper, a single-inductor multi-input single-output (SI-MISO) DC-DC boost converter is used for solar photovoltaic (PV) systems in DC or AC grids. The converter with N number of inputs combines energy from PV panels along with fuel cells (FCs) to maintain stability. By implementing a new switching algorithm in the converter, the output voltage of the converter and the power absorbed from each source can be controlled independently, resulting in a simple and unique controller. In addition, the multivariable control system can be controlled as N number of single-input single-output (SISO) systems without any delay between switches due to the small-signal model of the converter and the proposed proportional-integral-derivative (PID) cascade control scheme. For each PV source, an independent maximum power point tracking (MPPT) algorithm can be employed, and the current sharing among different sources can be achieved independently. The converter’s operating modes and the designed controller are present in the paper. Experimental results using a 100-W prototype converter validate the accuracy and efficiency of the proposed control scheme.

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一种用于光伏应用的单电感多输入单输出DC-DC升压转换器的新型控制方法

本文将单电感多输入单输出（SI-MISO）DC-DC升压转换器用于直流或交流电网中的太阳能光伏系统。具有N个输入的转换器将来自光伏电池板的能量与燃料电池（FC）结合起来以保持稳定性。通过在转换器中实现一种新的开关算法，可以独立控制转换器的输出电压和从每个电源吸收的功率，从而形成一个简单而独特的控制器。此外，由于转换器的小信号模型和所提出的比例积分微分（PID）级联控制方案，多变量控制系统可以控制为N个单输入单输出（SISO）系统，而开关之间没有任何延迟。对于每个光伏源，可以采用独立的最大功率点跟踪（MPPT）算法，并且可以独立地实现不同源之间的电流共享。文中介绍了变频器的工作方式和设计的控制器。使用100-W原型转换器的实验结果验证了所提出的控制方案的准确性和有效性。

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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来源期刊

IEEE Access COMPUTER SCIENCE, INFORMATION SYSTEMSENGIN-ENGINEERING, ELECTRICAL & ELECTRONIC

CiteScore

9.80

自引率

7.70%

发文量

6673

审稿时长

6 weeks

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