基于反馈线性化的AFE变频器功率控制

提出了一种新的有源前端(Active Front End, AFE)变频器功率控制策略，仿真测试验证了基于该策略的AFE变频器具有交流侧电流畸变小、直流电压稳定、静态和动态性能好、能量可双向流动等优点。该策略基于多输入多输出非线性系统的反馈线性化理论和同步旋转坐标变换，将AFE变频器功率控制模型转化为线性、时不变的解耦系统，有利于控制系统的设计及实现。

Power control of AFE converter based on feedback linearization

A new Active Front End (AFE) converter power control strategy is proposed. Simulation test is made showing that AFE converter based on the strategy has advantages of low AC-side current distortion, stable DC voltage, good dynamic performance, and bi-directional energy transfer. This strategy is based on the feedback linearization theory of multiple-input multiple-output non-linear systems and synchronous rotation coordinate transformation.The AFE converter power control model is transformed into a linear, time-invariant decoupling system, which is beneficial to the design and implementation of the control system.