三相并网逆变器无差拍双闭环控制方法Three-phase Grid-connected Inverter Deadbeat Double Closed-loop Control Method
肖力元,张伊洁,李云涛
XIAO Liyuan,ZHANG Yijie,LI Yuntao
摘要(Abstract)：
为简化并网逆变器控制器参数设计和提高并网逆变器动态响应性能与抗干扰能力,提出了一种三相并网逆变器无差拍双闭环控制方法。该方法采用直流侧电压无差拍控制器和交流侧瞬时电流无差拍控制器,控制系统所有参数可以基于给定电路元器件参数和电压回路方程直接计算获得,使得并网逆变器控制器参数设计十分简单。同时,该控制方法在数字处理器中容易实现并具有快速动态响应特性和较好抗干扰能力。最后,通过仿真分析验证了所提控制方法的可行性。
In order to simplify the parameters design of the controller for grid-connected inverter and improve the dynamic response performance and anti-interference ability of grid-connected inverters, a three-phase grid-connected inverter dead-beat double closed-loop control method is proposed. The proposed control method includes a DC side voltage deadbeat controller and an AC side instantaneous current deadbeat controller. All parameters of the control system can be directly calculated based on a given circuit component parameter and a voltage loop equation so that the parameter design of the controller for grid-connected inverter is very simple. At the same time, the control algorithm is easy to implement in the digital processor and has fast dynamic response characteristics and better anti-interference ability. Finally, the feasibility of the proposed control method is verified by simulation analysis.
关键词(KeyWords)：
并网逆变器;直流侧电压;瞬时电流;无差拍控制
grid-connected inverter;DC-side voltage;instantaneous current;deadbeat control
基金项目(Foundation): 湖南省自然科学基金面上项目(2017JJ28085)
作者(Author):
肖力元,张伊洁,李云涛
XIAO Liyuan,ZHANG Yijie,LI Yuntao
DOI: 10.19585/j.zjdl.201904005
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