|本期目录/Table of Contents|

[1]李春鹏,贲洪奇孙绍华,刘博. 改进型预测电流控制算法[J].电机与控制学报,2015,19(03):61-68.[doi:10. 15938/j. emc.2015.03.010]
 LI Chun-peng &sup,?BEN Honk-qi&sup,et al. Research of improved predictive current control algorithm[J].,2015,19(03):61-68.[doi:10. 15938/j. emc.2015.03.010]
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《电机与控制学报》[ISSN:1007-449X/CN:23-1 408/TM]

卷:
19
期数:
2015年03
页码:
61-68
栏目:
出版日期:
2015-03-15

文章信息/Info

Title:
 Research of improved predictive current control algorithm
作者:
 李春鹏贲洪奇孙绍华刘博
 1.哈尔滨工业大学 电气工程及自动化学院,黑龙江哈尔滨150001;2黑龙江省教育学院,黑龙江哈尔滨150080; 3.青岛科技大学自动化与电子工程学院,山东青岛266000
Author(s):
 LI Chun-peng ¹?BEN Honk-qi¹SUN Shao-hual¹?LIU Bo¹
 1. School of Electrical Engineering and Automation, Harbin Institute of Technology,Harbin 150001,China;
2. Heilongjiang Province Education College, Harbin 150080,China;3. College of Automation and Electronic Engineering, Qingdao University of Science and Technology, Qingdao 266000,China
关键词:
 三相并网逆变器预测电流控制电感参数失配稳定性
Keywords:
 Keywords:three phase grid-connected inverter predictive current controlinductance parameter mismatchstability
分类号:
TM 464
DOI:
10. 15938/j. emc.2015.03.010
文献标志码:
A
摘要:
 摘要:为解决传统预测电流控制算法在并网逆变器电感参数失配时容易出现系统不稳定的问题,
利用根轨迹法找出电感参数失配影响控制算法稳定性的原因。在此基拙上提出一种改进型预测电
流控制算法,通过对电流误差控制目标的修改和对逆变器理想输出电压的线性预测,在运算过程中
不仅避免了预测程度的加深,还能减小电流环特征方程的各项权重系数,利用零极点对消改造电流
环反馈系统的极点,使其特征方程的阶次始终为二阶。该算法在电感参数发生较大失配时,仍能保
持系统稳定,使输出电流跟随给定。仿真和实验结果证明了所提算法的正确性和可行性。
Abstract:
 Abstract:In order to solve the traditional predictive current control algorithm in the grid inverter induct-
ance parameter mismatch system prone to instability problems,Root-Locus method was used to find out
the cause of the inductance parameter mismatch affecting the stability of the control algorithm. Then a
modified predictive current control algorithm was put forward,based on the current deviation conditions of
modification and the ideal output voltage linear prediction,the deepening degree of prediction was avoi-
ded,the weight coefficient of current loop characteristic equation was reduced,and pole zero cancellation
was used to reform the current loop feedback control system pole,making the order of characteristic equa-
tion the second all the time. When the inductance parameters occurs worse mismatch,the algorithm still
can maintain stability of the system , and make the output current follow the given. Simulation and experi-
ment prove the correctness and feasibility of the algorithm.

参考文献/References:

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备注/Memo

备注/Memo:
 基金项目:国家自然科学基金(51107017)
更新日期/Last Update: 2015-07-23