Study of Constraint SMC Low-Frequency Full-Bridge Inverter

NI Yu; SHEN Yan

doi:10.3969/j.issn.0372-2112.2018.11.032

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Study of Constraint SMC Low-Frequency Full-Bridge Inverter

更新时间：2025-07-16

- Study of Constraint SMC Low-Frequency Full-Bridge Inverter
- Acta Electronica Sinica Vol. 46, Issue 11, Pages: 2809-2816(2018)
- 作者机构：
  
  成都信息工程大学控制工程学院,四川,成都,610225
- 作者简介：
- 基金信息：
  
  National Natural Science Foundation of China (No.61472050);Science and Technology Support Program of Sichuan Province (No.2015GZ0204);Applied Baisc Research Program of Sichuan Province (No.2014JY0257);Science and Technology Project of Education Department of Sichuan Province (No.15ZA0187)
- DOI：10.3969/j.issn.0372-2112.2018.11.032
  CLC： TM46
- Published Online：25 November 2018，
  
  Published：2018
- 稿件说明：
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NI Yu, SHEN Yan. Study of Constraint SMC Low-Frequency Full-Bridge Inverter[J]. Acta Electronica Sinica, 2018, 46(11): 2809-2816.
DOI：

NI Yu, SHEN Yan. Study of Constraint SMC Low-Frequency Full-Bridge Inverter[J]. Acta Electronica Sinica, 2018, 46(11): 2809-2816. DOI： 10.3969/j.issn.0372-2112.2018.11.032.

摘要

该文针对滑模控制单相全桥工频逆变器滑模系数选取困难的问题，基于滑模控制理论建立了单相全桥逆变系统的相变量模型，根据控制受限思想和滑动模态存在条件推导了滑模域与负载电阻和滑模系数之间的数学关系，深入分析了滑模域边界与滑模系数、负载电阻和负载跃变幅度的关系，提出了选取滑模系数的基本原则.基于逆变器加载系统轨线，结合滑模域右边界条件和逆变器期望动态设计指标，给出了一个计算滑模系数的公式，随后给出了切换系数的选取方法，并总结了基于滞环调制的滑模控制器的设计方法.仿真试验采用该方法设计了滑模控制器，结果验证了该设计方法的正确性和有效性.此法操作简便且易于掌握，具有较好理论参考价值和工程推广价值.

Abstract

To solve the problem that it is difficult to select the sliding coefficient

the sliding mode control theory was used toestablish the phase-variable model of the single-phase full-bridge inverter with sliding mode control. According to the constraint control principleand the sliding-mode's existence conditions themathematical relationship among the sliding domain

sliding coefficient and load resistance are derived. Then

the papermade ananalysis of the relationship between the sliding domain boundary and sliding coefficient

load resistance

load step amplitude

and put forward the basic principle of choosing the sliding coefficient. Based on the inverter load-step system trajectories

combined the sliding domain right boundary conditions with the inverter desired dynamic

the design method for the sliding mode controller with the hysteresis modulation is proposed. In the simulation experiment the sliding mode controller wasdesigned by this method

the results show that the design method is correct and effective. This method is simple and easy to operate

and is a good theoretical reference value and engineering value.

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