The two parts both adopt double loop PWM control mode which consists of outer voltage loop and inner current loop.

该系统包含升压和逆变两个环节，均采用电压外环、电流内环的双环pwm控制方式。

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Flywheel control system has two closed loops, the inner is voltage stabilization loop, other is current loop or is speed loop in different mode.

飞轮控制系统是个多回路系统，内回路为电压稳定回路，外回路在不同的工作模式下分别为电流回路和转速回路。

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Rotate speed control is implemented via two closed-loop systems with current and rotate speed feedback, through setting up simulant rotate speed and acceleration given by computer.

通过计算机给定模拟转速和加速度设置，电流和转速反馈双闭环系统实现转速控制。

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