【摘要】 介绍了矩阵换流器的主回路构成及特点。采用PWM控制将交流电源直接变换成任意的电压、频率输出,在控制输入功率因数时,将输出侧看作电流源,将其电源分配到输入侧,通过改变分配率,就可以控制输入功率因数。实验结果表明,矩阵换流技术与矢量控制相结合,不仅较好地抑制了电源高次谐波,而且在电机调速中,实现了高性能传动,在不同的速度下,转矩具有良好的线性。更多还原

【Abstract】 The introduction is made to the main circuit composition and features of matrix current converter, with adoption of PWM control to convert AC power directly into any voltage, frequency output, while in control of input power factor, to take output side as power source, distributing the power to the input side, via distribution rate change, it can control input power factor. The experiment results showed that in motor speed regulation, matrix current convertion technology to be combined with vector control will not only in a better way control power higher harmonic wave but also will fulfill high performance driving, under different speed, with fine linear for the torque.更多还原