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Transactions: WSEAS TRANSACTIONS ON POWER SYSTEMS
Transactions ID Number: 32-395
Full Name: Reza Nasiri
Position: Student
Age: ON
Sex: Male
Address: Power Electronics Laborotary, Electrical Engineering Department, K.N.Toosi University of Technology, Seyed Khandan Bridge, Tehran, Iran
Country: IRAN
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E-mail address: reza_nasiri80@yahoo.com
Other E-mails: radan@kntu.ac.ir
Title of the Paper: adaptive pole-placement control strategy for 4-leg voltage-source inverters via state feedback
Authors as they appear in the Paper: Reza Nasiri, Ahmad Radan
Email addresses of all the authors: reza_nasiri80@yahoo.com,radan@kntu.ac.ir
Number of paper pages: 10
Abstract: Four-leg inverters are used in critical applications like UPS systems and satellite earth stations. Consequently, generation of balanced voltages, with sinusoidal waveform, is necessary for these inverters. Most papers dealing with 4-leg inverters suggest classic controllers, such as PI controller, for the system. However, the transient performance of the closed-loop system does not become, accurately, adjustable and acceptable, in some cases. On the other hand, adaptive control of 4-leg inverters has not yet been discussed in the literatures. This paper proposes Pole Placement control strategy, via state feedback, for the 4-leg voltage-source inverters to adjust the transient performance of the closed-loop system. In addition, a STR (Self-Tuner Regulator) is introduced to guarantee the adaptive performance of the controller in the presence of unbalanced time-variant RL loads. Simulation results validate the theoretical results and proposed control strategy.
Keywords: 4-leg inverters, State space feedback, Adaptive control, Self-tuner regulator
EXTENSION of the file: .pdf
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