| 引入趋近律的功率因数校正滑模控制仿真研究 |
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| 引用本文： | 丁坤. 引入趋近律的功率因数校正滑模控制仿真研究[J]. 计算机仿真, 2009, 26(3) |
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| 作者姓名： | 丁坤 |
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| 作者单位： | 河海大学机电工程学院,江苏,常州,213022;河海大学电气工程学院,江苏,南京,210098 |
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| 基金项目： | 江苏省工业科技攻关项目，河海大学常州小区创新科技基金 |
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| 摘 要： | 提出一种引入趋近律的滑模变结构控制(SMVSC)方法来实现有源功率因数校正(APFC),减少电流的谐波成分.SMVSC是一种解决非线性时变系统(如APFC系统)问题的良好办法,但是实际应用中SMVSC的"抖振"现象问题必须要解决好.引入趋近律来削弱APFC系统在滑模控制中的"抖振"现象,并且依此推导出了控制APFC系统中的功率开关的PWM占空比.采用Matlab平台进行仿真验证控制策略控制APFC电路几乎得到单位功率因数,同时超调减小、响应时间缩短.
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| 关 键 词： | 有源功率因数校正 滑模变结构控制 趋近律 抖振 |
Power Factor Correction Using Sliding Mode Control with Reaching Law |
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| DING Kun. Power Factor Correction Using Sliding Mode Control with Reaching Law[J]. Computer Simulation, 2009, 26(3) |
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| Authors: | DING Kun |
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| Affiliation: | 1.College of Mechatronics Engineering;Hohai Univ.Changzhou Jiangsu 213022;China 2.College of Electrical Engineering;Hohai Univ.Nanjing Jiangsu 210098;China |
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| Abstract: | A strategy using sliding mode variable-structure control(SMVSC) with reaching law for active power factor correction(APFC) is proposed.This method can reduce current harmonic.SMVSC is one of the control strategies to deal with nonlinear time varying systems,such as APFC system.A big problem of SMVSC is chattering,and chattering is unavoidable in practice.In this paper reaching law is used to reduce chattering of a APFC system,and the duty ratio is deduced to control main power switch.Simulation results show... |
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| Keywords: | Active power factor correction Sliding mode variable-structure control Reaching law Chattering |
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