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个人信息Personal Information
教授
博士生导师
硕士生导师
性别：男
毕业院校：哈尔滨工业大学
学位：博士
所在单位：电气工程学院
学科：电力电子与电力传动
办公地点：电气工程学院（海映楼），409室
联系方式：chenxy@dlut.edu.cn
电子邮箱：chenxy@dlut.edu.cn
论文成果
当前位置: 大连理工大学 陈... >> 科学研究 >> 论文成果Digital Average Current-Mode Control Using Current Estimation and Capacitor Charge Balance Principle for DC-DC Converters Operating in DCM
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论文类型：期刊论文
发表时间：2010-06-01
发表刊物：IEEE TRANSACTIONS ON POWER ELECTRONICS
收录刊物：SCIE、EI
卷号：25
期号：6
页面范围：1537-1545
ISSN号：0885-8993
关键字：Average current estimation; capacitor charge balance principle; dc-dc converter; digital control; discontinuous conduction mode (DCM)
摘要：Anew digital average current-mode control technique is proposed for dc-dc converters operation in discontinuous conduction mode. In contrast to the regulation of inductor current, this paper focuses on how the suitable charge current is feed to capacitor and load resistor directly. Using the principle of capacitor charge balance, the charge current reference in next switching cycle is predicted in order to drive the output voltage back to its nominal value quickly during transient conditions. The actual average charge current is estimated from a simplified algorithm, which can also be used to calculate the required duty ratio according to the charge current reference. This control technique features good dynamic performance and it is compliant with the performance constraints of digital integrated processor. The effectiveness of the proposed solution has been proved by the simulation and experimental results.