دانلود رایگان مقاله انگلیسی مطالعه در مبدل DC-DC کاسکد برای استفاده در فتوولتائیک ساختمان یکپارچه - IEEE 2018

عنوان فارسی
مطالعه در مبدل DC-DC کاسکد برای استفاده در فتوولتائیک ساختمان یکپارچه
عنوان انگلیسی
Study on a cascaded DC-DC converter for use in Building-Integrated Photovoltaics
صفحات مقاله فارسی
0
صفحات مقاله انگلیسی
6
سال انتشار
2018
نشریه
آی تریپل ای - IEEE
فرمت مقاله انگلیسی
PDF
کد محصول
E6646
رشته های مرتبط با این مقاله
مهندسی برق
گرایش های مرتبط با این مقاله
الکترونیک، الکترونیک قدرت
مجله
Department of Electrical Engineering (ESAT) - Electrical Energy and Computer Architectures (ELECTA) EnergyVille - Belgium
دانشگاه
کنفرانس قدرت و انرژی تگزاس - Texas Power and Energy Conference
چکیده

Abstract


In this paper, a two-stage powerelectronics topology is presented for use in a BIPV module-level converter, connected to a low-voltage DC microgrid. The converter is built up as a cascade of two topologies, being an interleaved boost converter and a phase-shifted full bridge. The interleaved boost converter was chosen to lower the current stresses for the components and to reduce the required input and output capacitance due to the ripple current cancellation in the in- and output. The full bridge is chosen for its galvanic isolation and to perform the high step-up via the transformer turns ratio. It is shown that the maximum intermediate voltage level in between both converters can be derived from the continuous conduction mode of operation. Simulations are provided that show the correct operation of the overall structure. An experimental prototype has been built to demonstrate the overall performance of the converter.

نتیجه گیری

VII. Conclusion


First, several challenging aspects for BIPV converters such as long lifetime, high compactness, high gain and a wide operating range have been discussed. Then a converter design was proposed and the components were selected. The control strategy of the converter is partly closed-loop, partly open-loop. The interleaved Boost converter stage, which will take care of the MPPT and works always under CCM is controlled in closed loop. The second stage, a phase-shifted full bridge, can work under both CCM or DCM. The control of this stage is purely open loop and it has been shown that the voltage stresses can be derived from CCM, as the voltage stress under DCM will always be lower. Finally, PCB prototypes of the Boost and the full bridge converter were developed. The Boost converter works as expected and achieves good efficiencies. However, the full bridge secondary has to deal with oscillatory behaviour and as a consequence, it was not possible to measure the efficiency curve as it was not possible to use the converter under nominal operating conditions. Further research is needed to come up with a good solution for this problem.


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