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首页> 外文期刊>International Journal of Photoenergy >Buck-Boost/Forward Hybrid Converter for PV Energy Conversion Applications
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Buck-Boost/Forward Hybrid Converter for PV Energy Conversion Applications

机译：用于PV能量转换应用的降压 - 升压/前向混合转换器

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摘要

This paper presents a charger and LED lighting (discharger) hybrid system with a PV array as its power source for electronic sign indicator applications. The charger adopts buck-boost converter which is operated in constant current mode to charge lead-acid battery and with the perturb and observe method to extract maximum power of PV arrays. Their control algorithms are implemented by microcontroller. Moreover, forward converter with active clamp circuit is operated in voltage regulation condition to drive LED for electronic sign applications. To simplify the circuit structure of the proposed hybrid converter, switches of two converters are integrated with the switch integration technique. With this approach, the proposed hybrid converter has several merits, which are less component counts, lighter weight, smaller size, and higher conversion efficiency. Finally, a prototype of LED driving system under output voltage of 10 V and output power of 20 W has been implemented to verify its feasibility. It is suitable for the electronic sign indicator applications.
机译：本文介绍了一种充电器和LED照明（放电）混合系统，具有PV阵列作为电子标志指示器应用的电源。充电器采用降压 - 升压转换器，该转换器以恒流模式操作，以对铅酸电池和扰动和观察方法提取PV阵列的最大功率。它们的控制算法由微控制器实现。此外，具有有源钳位电路的前进转换器在电压调节条件下操作，以驱动电子标志应用的LED。为简化所提出​​的混合动力转换器的电路结构，两个转换器的开关与开关集成技术集成。通过这种方法，所提出的混合转换器具有多种优点，这些优点是组分计数，重量较轻，尺寸较小，转换效率更高。最后，已经实现了10V输出电压的LED驱动系统的原型，并实现了20W的输出功率以验证其可行性。它适用于电子标志指示器应用。

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