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Advantages and disadvantages of open-loop control and closed-loop control

Advantages: The advantages of open-loop control system are simple, stable and reliable, and the advantages of closed-loop control system are high precision and insensitive to external disturbances and system parameter changes.

2. Disadvantages: the open-loop control system has low precision and no automatic rectification ability, and the closed-loop control system has problems such as stability, oscillation and overshoot, which makes the system performance analysis and design troublesome.