半月刊

ISSN 1000-1026

CN 32-1180/TP

+高级检索 English
基于输入端电压动态分量优化的PWM整流器模型预测控制
作者:
作者单位:

西南交通大学电气工程学院,四川省成都市 610031

作者简介:

夏文婧(1993—),女,硕士研究生,主要研究方向:电力牵引交流传动及其控制。E-mail:xiawenjing2018@163.com
刘碧(1991—),男,博士研究生,主要研究方向:电力牵引交流传动及其控制。E-mail:b_liu_2014@163.com
王嵩(1983—),男,通信作者,博士,硕士生导师,主要研究方向:电力牵引交流传动及其控制。E-mail:songwang @swjtu.edu.cn

通讯作者:

基金项目:

国家重点研发计划资助项目(2017YFB1200900);国家自然科学基金资助项目(51707167)。


Model Predictive Control of PWM Rectifiers Based on Dynamic Component Optimization of Input-port Voltage
Author:
Affiliation:

School of Electrical Engineering, Southwest Jiaotong University, Chengdu 610031, China

Fund Project:

This work is supported by National Key R&D Program of China (No. 2017YFB1200900) and National Natural Science Foundation of China (No. 51707167).

  • 摘要
  • |
  • 图/表
  • |
  • 访问统计
  • |
  • 参考文献
  • |
  • 相似文献
  • |
  • 引证文献
  • |
  • 资源附件
    摘要:

    为了提高三相电压型脉宽调制(PWM)整流器的动态响应速度和控制精度,提出了一种基于整流桥输入端电压动态分量优化的模型预测功率控制算法。首先,建立了三相PWM整流器dq旋转坐标系下的功率数学模型,分析了传统基于比例-积分(PI)控制器的直接功率控制算法的工作原理。然后,针对传统基于PI控制器的直接功率控制算法的内环功率PI控制器参数设计复杂及动态响应速度慢等缺点,从整流桥输入端电压动态分量优化的角度出发,借鉴模型预测控制思想,通过评价函数预测最优动态分量,在取消了功率内环PI控制器的同时提高了系统的动态响应速度和控制精度。最后,对所提模型预测功率控制和传统基于PI控制器的直接功率控制算法分别进行半实物实验对比研究,实验结果证明了所提算法的正确性和有效性。

    Abstract:

    In order to improve the dynamic response speed and control accuracy of three-phase voltage source pulse width modulation (PWM) rectifiers, this paper proposes a model predictive power control (MPPC) algorithm based on dynamic component optimization of input-port voltage. Firstly, a power mathematical model of three-phase PWM rectifiers is built in dq rotating frame, and the working principle of the conventional direct power control (DPC) based on proportional-integral (PI) controller is analyzed. Then, from the perspective of dynamic component optimization of input-port voltage, this paper uses the model predictive control idea to predict the optimal dynamic component through the evaluation function, to overcome the drawbacks of the inner-loop power-based PI controllers in PI-DPC, such as complicated parameter design and slow dynamic response. The proposed MPPC scheme can achieve fast dynamic response and high control precision, while avoiding the use of the inner-loop power-based PI controllers. Finally, the proposed MPPC and PI-DPC schemes are compared in hardware-in-loop experiment platform, and the experimental results have verified the validity and effectiveness of the proposed algorithm.

    图1 三相PWM整流器拓扑结构Fig.1 Topology of three-phase PWM rectifier
    图2 dq坐标系下输入端电压矢量v端点轨迹范围Fig.2 Terminal trajectory range of voltage
    图3 dq坐标系下输入端电压矢量v端点轨迹Fig.3 Terminal trajectory of voltage vector v in dq frame
    图4 直流侧电压和网侧a相电压、a相电流稳态实验结果Fig.4 Experimental results of DC-side voltage and grid side voltage and current of phase a in steady state
    图5 给定有功功率突变情况下功率和网侧电流实验结果Fig.5 Experimental results of power and grid-side current under the condition of
    图6 负载突变情况下直流侧电压、功率及Fig.6 Experimental results of DC-side voltage, power,
    表 1 所提MPPC算法和传统PI-DPC算法性能对比Table 1 Performance comparison of the proposed MPPC algorithm and the conventional PI-DPC algorithm
    参考文献
    相似文献
    引证文献
引用本文

夏文婧,刘碧,王嵩,等.基于输入端电压动态分量优化的PWM整流器模型预测控制[J].电力系统自动化,2020,44(1):200-207. DOI:10.7500/AEPS20190315005.
XIA Wenjing,LIU Bi,WANG Song,et al.Model Predictive Control of PWM Rectifiers Based on Dynamic Component Optimization of Input-port Voltage[J].Automation of Electric Power Systems,2020,44(1):200-207. DOI:10.7500/AEPS20190315005.

复制
分享
文章指标
  • 点击次数:
  • 下载次数:
  • HTML阅读次数:
  • 引用次数:
历史
  • 收稿日期:2019-03-15
  • 最后修改日期:2019-06-14
  • 录用日期:
  • 在线发布日期: 2020-01-04
  • 出版日期: