说明：  利用Matlab中的Simulink工具箱仿真。给定三相电源 ，相电压有效值100V。设计一个子系统，利用三相电源给三相全控桥提供一组逻辑触发信号， °（不使用脉冲发生器）。
(Using the Simulink toolbox in Matlab simulation. Given three-phase power, RMS voltage of 100V. The design of a subsystem, the use of three-phase power to three-phase full-bridge control logic provides a set of trigger signals, ° (do not use pulse generator).)