在介绍某型恒频交流电源频率调节系统的组成和工作原理的基础上，建立频率调节系统的数学模型。

Based on the introduction of components and principle of work of frequency modulation system of constant frequency AC power supply, math model of frequency modulation system is established.

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由于永磁直驱风力发电系统所发出的电能为电压和频率的交流电，为得到恒压恒频的电能，本文进行了逆变控制系统的软硬件设计。

To get constant voltage and constant frequency energy that users need, the software and hardware of the inverter control system is designed.

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它能够使用普通同步发电机发出恒频恒功率交流电，电能质量更好，所使用的变换器功率低于发电机功率。

It can make a synchronous machine to generate an ac power with constant frequency and constant power, the power quality is better and the power of matching convertor is lower than the generator.

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