Ripple current reduction in interleaved boost converter by using advanced PWM techniques

2014 IEEE International Conference on Advanced Communications, Control and Computing Technologies Pub Date : 2014-05-08 DOI:10.1109/ICACCCT.2014.7019291

M. Devi, K. Valarmathi, R. Mahendran

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引用次数: 17

Abstract

The reliability, efficiency, and controllability of Photo Voltaic (PV) power systems can be increased by embedding the components of a Boost Converter. Technology of boost converter should overcome the main problems of manufacturing cost, efficiency and production. The key factor to limit the life span of a PV inverter is the huge electrolytic capacitor across the Direct Current (DC) bus for energy decoupling. A boost converter is a DC-DC power converter with higher output voltage, but it produces some ripple current. In order to improve the efficiency of the boost converter and reduce the ripple current, an interleaved boost converter is used. This paper presents a two-phase interleaved boost converter which ensures 180° phase shift between the two interleaved converters. This paper presents a two phase Interleaved Boost Converter with Proportional Integral (PI) controller. PI is designed for output voltage regulation and this boost converter is simulated for various Pulse Width Modulation (PWM) scheme. This simulation results shows output voltage is well tracked and it improves the efficiency and reduces the ripple current.

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利用先进的PWM技术降低交错升压变换器的纹波电流

通过嵌入升压变换器的组件，可以提高光伏发电系统的可靠性、效率和可控性。升压变换器技术需要克服制造成本、效率和产量等主要问题。限制光伏逆变器寿命的关键因素是用于能量解耦的横跨直流(DC)母线的巨大电解电容器。升压变换器是一种具有较高输出电压的DC-DC功率变换器，但它会产生一些纹波电流。为了提高升压变换器的效率，减小纹波电流，采用了交错式升压变换器。本文提出了一种两相交错升压变换器，保证了两相交错升压变换器之间180°的相移。提出了一种带比例积分控制器的两相交错升压变换器。PI设计用于输出电压调节，并对该升压变换器进行了各种脉冲宽度调制(PWM)方案的仿真。仿真结果表明，输出电压跟踪良好，提高了效率，减小了纹波电流。

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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2014 IEEE International Conference on Advanced Communications, Control and Computing Technologies

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