Tham khảo tài liệu 'recent advances in mechatronics - ryszard jabonski et al (eds) episode 1 part 5', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | 144 P. Fabijanski R. Lagoda loop 7 Now we obtain the following transfer function for current regulation close G1 z z 2 b2 bi bo The stability condition for current controller are determined by using b2 bi bo 0 b2-bo 0 b2 -bi bo 0 8 The proposed control structure under application of fuzzy logic was tested with a 600W synchronous motor. In this case the stability condition for kp i ki current controller parameters are shown on . Fig. 6. The stability condition for current controller The block diagram of speed controller and outer loop is shown on 8 Fig. 8. Simplified diagram of speed regulator for outer regulator loop G z O z Gr z Gii z O z 1 KpGr z Gii z Aiz Ao and then we have G O z - ------ B2Z2 B1 Bo The stability condition are determined by using B2 Bi-Bo o B2-Bo o B2-B1 Bo o Bi o 9 10 11 Mathematical analysis of stability for inverter fed synchronous motor with fuzzy . 145 The stability condition for speed controller are shown on . 1 k. f k ira pra 1 3 5 Fig. 9. The stability condition for speed controller The laboratoty test result on 600Wsynchronous motor was shown on Fig 10 . Output speed signal in case of change parameters of speed controller 4. Conclusion The most important results of our investigation is description fuzzy logic control method of inverter fed synchronous motor. The stability condition are determined for current and speed controller. The simulated result were compared during the laboratory test on 600 W synchronous motor. Another results of our investigation is description self-tuning fuzzy logic control method of inverter fed synchronous motor. The novel method is derived from a detailed analysis of the cycle information it has been fully tested with a inverer fed synchronous motor drive. The experimental results show that the proposed algorithm has the feature of simplicity versa-tibility and stability. 5. References 1 A. Zajaczkowski Indirect adaptive decoupling control of a permanent magnet synchronous motor 20-th
