本文介绍了空间电压矢量脉宽调制(SVPWM)的基本原理，并应用此原理进行了交流光伏水泵系统的设计。

This paper introduces the basic theory of space-vector PWM (SVPWM), and designs the ac photovoltaic water pump system on the basics of this theory.

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脉宽调制信号的频率可以由用户设置电容的大小来调整。

The frequency of PWM wave can also adjusted by engineers through choosing the capacitance.

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LED系统应采用高速脉宽调制(PWM)数字式地驱动。

The LED system shall be digitally driven using high-speed pulse width modulation (PWM).

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