Abstract
This paper describes the development and implementation of three driving strategies for the oscillation amplitude control of a resonant rotational reluctance actuated scanning mirror system. The three driving strategies exploit control of current input amplitude, pulse duration, and the phase between the input and the mover angle. Linear PI-controllers are developed for each driving strategy for the linearized plant around an operating point of the highly nonlinear system. The implemented driving strategies are compared over a wide operating range of the scanning mirror system, regarding their closed-loop dynamics in the time-domain, revealing their fundamental differences. Phase-control is the most promising control strategy, delivering the highest closed-loop bandwidth of at least 11 Hz over the entire investigated operating range at worst with a rise-time of 30 ms at a step response.
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