I-Controller

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I-Controller

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The I Controller can be used to create an almost ideal integrator (when the frequency goes to zero).

Gain Ki: The filter gain Ki determines the frequency gain of the controller at frequency w = 1 [rad/s].
Frequency fi: The integration behavior of the controller stops at frequency fi in Hz. A decrease of this frequency corresponds to a more pure integration behavior.

Transfer function of the controller

EquationI