Question

modern Control system

(C6, CO4, PO2, PO3 and PO11 (a) A compensator is an additional component or circuit that is inserted into a control system in order to compensate for deficient performance. Pemampas adalah satu komponen atau litar tambahan yang dimasukkan ke dalam sistem kawalan untu mengimbangi kekurangan prestasi i) With appropriate examples, explain phase-lead and phase-lag compensation network. [Dengan contoh-contoh yang sesuai, tafsirkan fasa-utama dan fasa-lag rangkaian pampasanJ (3 Marks Markah) (ii) Construct an RC circuit for implementing phase lead-lag compensation Bina sebuah litar RC bagi melaksanakan rangkaian pampasa fasa utama-lag. (5 Marks Markah) (b) A unity feedback gain control system is shown in Figure 4.1. The system has an open 800 loop transfer function, G(s)- a compensator +2+20).It is required to design network G (s) and insert in the system as in Figure 4.2 Sistem uniti suapbalik kawalan gandaan ditunjukkan dalam Rajah 4.1. Sistem ini mempunyai rangkap . Ta diperlukan untuk mereka bentuk rangkaian pemampas pindah gelung terbuka, guw)- G800 s(s +2)(s +20) G, (s) dan sisipan dalam sistem seperti dalam Rajah 4.2.1 800 YCs) X(s) s(s +20s +20) Figure 4.1 [Rajah 4.1) GG6800 s(s +2s+20) TCs) G, (s) G(s) Figure 4.2 Rajah 4.2 i) Design the compensator network G (s) such that a phase margin of 35 degrees is achieved. Rekabentuk rangkaian pemampas Gels) supaya margin fasa 35 darjah dicapai (8 Marks Markah) ii) Evaluate the stability of the compensated system. Nilaikan kestabilan sistem pampasan 4 Marks Markah)

Answer 1

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