[理工] 自控 波德圖 判斷閉迴路穩定度問題
各位大大 您好,
弟有一自控問題想要請教,如下,
書上有一段話 "波德圖由G(S)求得,其目的判斷閉迴路之穩定度"
弟不懂,可判斷穩定的理由為何? 懇請板上前輩 不吝告知
弟目前所知, 波德圖主要將G(S)以線性組合的方式拆解成四類因式,
其基本要求: 1) gain K>0
2) G(S)的極零點都在左半平面
是指他的基本要求嗎?
還是指,在系統鑑別時,由波德圖上所求得的G(S)中,來判斷是否穩定的意思呢??
感覺沒有讀很透徹, 懇請告知,
感謝您.
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