|本期目录/Table of Contents|

[1]宋文胜,邓知先.单相 PWM 整流器定频模型预测功率控制算法[J].电机与控制学报,2016,20(04):93-100.[doi:10. 15938 / j. emc. 2016. 04. 013]
 SONG Wen-sheng,DENG Zhi-xian.Model predictive power control scheme for single-phase PWM rectifiers with constant switching frequency [J].,2016,20(04):93-100.[doi:10. 15938 / j. emc. 2016. 04. 013]
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单相 PWM 整流器定频模型预测功率控制算法(PDF)
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《电机与控制学报》[ISSN:1007-449X/CN:23-1 408/TM]

卷:
20
期数:
2016年04
页码:
93-100
栏目:
出版日期:
2016-04-01

文章信息/Info

Title:
Model predictive power control scheme for single-phase PWM rectifiers with constant switching frequency
作者:
宋文胜 邓知先
( 西南交通大学 电气工程学院,四川 成都 610031)
Author(s):
SONG Wen-sheng DENG Zhi-xian
( School of Electrical Engineering,Southwest Jiaotong University,Chengdu 610031,China)
关键词:
单相 PWM 整流器 直接功率控制 模型预测控制 占空比优化 半实物实验
Keywords:
single-phase PWM rectifier direct power control model predictive control duty cycle opti-mization hardware in loop experiments
分类号:
TM 46
DOI:
10. 15938 / j. emc. 2016. 04. 013
文献标志码:
A
摘要:
针对传统单相 PWM 整流器开关表直接功率控制算法的系统功率脉动大、开关频率不固 定、网侧谐波高等问题,借鉴三相 PWM 整流器的模型预测直接功率控制( MP-DPC) 算法,提出了一 种基于占空比优化的单相 PWM 整流器 MP-DPC 算法。首先,依据瞬时功率理论,通过虚拟坐标系 构造网侧电压与电流的旋转矢量,给出了一种单相系统功率求解算法; 然后,研究不同开关状态对 系统功率的影响,给出了单相 PWM 整流器最优开关状态选择与占空比求解的 MP-DPC 方法; 最 后,分别对滞环开关表 DPC 与 MP-DPC 算法进行了计算机仿真及半实物实验对比研究,结果表明: 与滞环开关表 DPC 算法相比,该 MP-DPC 算法具有控制精度高、开关频率恒定、网侧电流谐波含量 低等优点,也验证了该算法的有效性和优越性。
Abstract:
For these drawbacks of traditional switching-table direct power control( DPC) in single-phase PWM rectifiers such as large power ripple,variable switching frequency and large harmonic components of the grid-side current,a single-phase model predictive DPC ( MP-DPC) scheme with duty cycle optimiza-tion was proposed,on the basis of three-phase model predictive direct power control scheme. Firstly,the grid-side voltage / current rotating vectors were constructed through fictive-axis emulation,and a power cal-culation algorithm for single-phase system was presented on the basis of instantaneous power theory. Then, combining with the effect of different switching-states on instantaneous power,a MP-DPC scheme with switching-state selection and duty cycle optimization was proposed for single-phase PWM rectifier. Final-ly,computer simulations and hardware in loop experiments were adopted to test and compare traditional hysteresis switching-table DPC and MP-DPC,respectively. Simulation and experimental results show that the proposed MP-DPC scheme achieves higher precision,lower harmonics and constant switching frequen-cy compared with hysteresis switch-table DPC. Feasibility and correctness of the proposed MP-DPC scheme are also verified.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期: 2014 - 08 - 08
基金项目: 国家自然科学基金( 51207131,51277153)
作者简介: 宋文胜( 1985—) ,男,博士,讲师,硕士生导师,研究方向为电力牵引交流传动及其控制;
邓知先( 1991—) ,男,硕士,研究方向为电力牵引交流传动及其控制。
更新日期/Last Update: 2016-06-26