矩阵式变换器电流环无源性控制

Passivity control for current-loop of matrix converter

针对矩阵式变换器输出侧电流易受输出侧负载影响现象,提出了一种基于无源性理论的矩阵式变换器的控制器.首先将矩阵变换器等效为虚拟的交-直-交变换器,在d?q坐标下建立了矩阵变换器输入和输出侧的模型,并基于无源性理论设计了矩阵式变换器输出侧闭环控制器,以消除内外扰动和不平衡的影响,实现对输出电流快速准确的跟踪.仿真结果表明这种控制器具有很好的动态特性,对输入和输出扰动均有很好的抑制效果.

A controller based on the passivity theory is presented for matrix converter（MC） which is influenced by the load on the output. The MC is transformed to a virtual AC-DC-AC converter, and a model is established in d-q frame and the controller is designed to eliminate the influence of inner and outer disturbance and to realize the fast accurate tracking of output current. Simulation results demonstrate the desirable dynamic performance and strong robustness to the input and output disturbance.