本文研究了三相电压源型逆变器实现并网所采用的控制方法，包括空间矢量调制法和锁相环技术。

A method of the three phase voltage-source inverter connecting to the grid is studied, which consists of space vector pulse width modulation and phase-locking method.

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然后以三相电压源型逆变器作为例子，按照定义的硬件管理器和应用管理器的具体功能定义和实现给了详尽的方案。

Taking the three-phase VSI as example, I give the detailed project by establishing the function definition the HM (Hardware Manager) and the am (Application Manager) and its implementation.

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