Model Prediction Based Direct Power Control Strategy for Three-level PWM Converter

Huimin LI; Hui LI; Xinqiao FAN

doi:10.12096/j.2096-4528.pgt.18254

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Model Prediction Based Direct Power Control Strategy for Three-level PWM Converter

Energy Internet | 更新时间：2025-06-06

- Model Prediction Based Direct Power Control Strategy for Three-level PWM Converter
- Power Generation Technology Vol. 40, Issue 2, Pages: 128-133(2019)
- 作者机构：
  
  北京信息科技大学自动化学院, 北京市海淀区 100192
- 作者简介：
- 基金信息：
  
  Beijing Natural Science Foundation Project(3172015);Beijing Municipal Education Commission Research Project(KM201711232008)
- DOI：10.12096/j.2096-4528.pgt.18254
  CLC：
- Received：14 December 2018，
  
  Published：30 April 2019
- 稿件说明：
移动端阅览
Huimin LI, Hui LI, Xinqiao FAN. Model Prediction Based Direct Power Control Strategy for Three-level PWM Converter[J]. Power Generation Technology, 2019, 40(2): 128-133.
DOI：

Huimin LI, Hui LI, Xinqiao FAN. Model Prediction Based Direct Power Control Strategy for Three-level PWM Converter[J]. Power Generation Technology, 2019, 40(2): 128-133. DOI： 10.12096/j.2096-4528.pgt.18254.

摘要

为了满足脉宽调制型变流器功率响应速度快以及绝缘栅双极型晶体管开关频率恒定等要求，提出了基于模型预测的直接功率控制策略用于三电平PWM变流器。该控制策略采用电压外环、功率内环的双闭环控制，外环省略了锁相环环节，简化了控制系统结构；内环无需PI调节器，参数设计简单，响应速度快。利用MATLAB/SIMULINK仿真平台搭建了三电平中性点箝位型PWM变流器模型，对比分析了提出的控制策略与传统PI控制的效果。仿真结果表明，新的控制策略有效降低了交流侧电流总谐波失真率，提高了交流侧功率因数，具有良好的动态和稳态性能。

Abstract

To meet the requirements of fast power response speed for pulse width modulation (PWM) type converter and constant switching frequency for insulated gate bipolar transistor (IGBT)

a direct power control strategy based on model prediction was proposed for three-level PWM converter. The double closed-loop control was adopted in this strategy

namely voltage outer-loop and power inner-loop. The phase-locked loop in the outer-loop is omitted

which simplifies the structure of the control system. A PI regulator is not need in the inner-loop

which makes parameters' design simple and the response speed fast. A model of three-level neutral point clamp type PWM converter was built in MATLAB/SIMULINK. The effects between the presented control strategy and traditional PI control were analyzed. The simulation results show that the new control strategy effectively reduces the total harmonic distortion rate of the AC-side current

improves the AC-side power factor

and has good dynamic and steady-state characteristics.

关键词

Keywords

references

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