系统仿真学报 ›› 2015, Vol. 27 ›› Issue (1): 125-132.

• 信息、控制、决策与仿真 • 上一篇    下一篇

电压源型逆变器改进无差拍控制策略仿真研究

夏鲲1, 葛越1, 曾彦能1, 许颇2   

  1. 1.上海理工大学,上海 200093;
    2.宁波锦浪新能源科技有限公司,宁波 315712
  • 收稿日期:2013-12-24 修回日期:2014-05-26 发布日期:2020-09-02
  • 作者简介:夏鲲(1980-), 男, 上海市人, 博士, 副教授, 研究方向为电机及其控制、新能源技术应用等;葛越(1990-), 男, 安徽省人硕士生, 研究方向为新能源技术;曾彦能(1989-), 男, 湖北省人, 硕士生, 研究方向为新能源技术。
  • 基金资助:
    宁波市科委重大科技攻关项目(2012B10031)

Simulation Study of Improved Deadbeat Control Method for Voltage Source Inverter

Xia Kun1, Ge Yue1, Zeng Yanneng1, Xu Po2   

  1. 1. University of Shanghai for Science and Technology, Shanghai 200093, China;
    2. Ginlong Technologies Co., Ltd, Ningbo 315712, China
  • Received:2013-12-24 Revised:2014-05-26 Published:2020-09-02

摘要: 电压源型逆变器广泛运用于UPS、新能源发电等场合,在各种负载下,尤其是非线性负载下的低电压畸变率和快速系统响应是其追求的目标。通过对单相逆变系统进行建模,根据其离散状态空间方程,提出了一种新型无差拍控制策略,在双闭环控制基础上增加了2个前馈环节,并设计了预测状态观测器以消除采样和计算带来的延时,提高系统动态响应能力。在MATLAB/Simulink环境下对单相逆变器改进型无差拍控制策略进行了系统建模,仿真结果表明,该控制策略能显著提高系统在非线性负载下的动态响应性能,改善输出电压波形。

关键词: 状态观测器, 无差拍控制, 单相逆变器, Simulink仿真

Abstract: The voltage source inverter is widely used in UPS, the new energy power generation and many other applications. Low THD and rapid system response under all kinds of loads, especially under nonlinear load are required. A new deadbeat control method was proposed according to the discrete state equation of single-phase inverter system, two feed-forward loops were added and a state observer was designed in order to eliminate the delay of sampling and calculation and to improve the system dynamic response. A simulation model of single-phase inverter was constructed in the MATLAB/Simulink environment. The simulation results show that the new control strategy can obviously improve the system dynamic response and reduce the output voltage THD under nonlinear load.

Key words: state observer, deadbeat control, single-phase inverter, simulink simulation

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