基于MATLAB的SVPWM逆变控制系统仿真

针对不间断电源从市电输出到逆变输出的快速切换（要求4ms）,提出了用空间矢量调制逆变载波的方法,并通过电压、相位开环控制,使市电与逆变电同步,达到快速切换的要求。采用了MATLAB软件包中的Simulink模块对系统进行建模、仿真,具有建模简易、结构清晰、操作方便等优点。结果清晰的表明,通过反馈环节,可以很方便地控制逆变电压和锁相,以满足需要。

Simulation and Research of SVPWM Inversion Control System Based on MATLAB

For the fast switch of EPS which is from the utility power output to the inverter output,the article suggests that SVPWM modulates invert carrier via the close-cycle Control of voltage and phase,so as to synchronize the invertor output with the utility power output.In the article,we make use of Simulink modules,one of the toolboxes of MATLAB,to model and simulate the system.This environment is easily modeling,clearing structure and convenient operation.The results demonstrate that we can flexibly control voltage of inverter via feedback element and lock phase to satisfy our needs.