Improving the Disturbance Resistance of Magnetic Disk Drives by Using Anti-Windup and Model Following Controls with Initial Value Compensation.
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We have developed a magnetic head positioning control method of a hard disk drive under conditions of variable parameters and disturbances. It consists of model following control for feed forward compensation and and-windup control for feedback compensation. By using anti-windup control for a feedback controller, slow and large transient responses near the target position are avoided and the actuator settles more quickly on the target position.
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