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Output voltage control of a four-leg inverter based three-phase ups by means of stationary frame resonant filter banks
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Date
2006
Author
Demirkutlu, Eyyüp
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A method for high performance output voltage control of a four-leg inverter based three-phase transformerless UPS is proposed. Voltage control loop is employed and the method employs stationary frame resonant filter controllers for the fundamental and harmonic frequency components. A capacitor current feedback loop provides active damping and enhances the output voltage dynamic performance. The controller design and implementation details are given. Linear and nonlinear loads for balanced and unbalanced load operating conditions are considered. The steadystate and dynamic performance of the UPS are investigated in detail. A scalar PWM method with implementation simplicity and high performance is proposed and implemented. The control and PWM methods are proven by means of theory, simulations, and experiments.
Subject Keywords
Applications of Electric Power.
URI
http://etd.lib.metu.edu.tr/upload/12608151/index.pdf
https://hdl.handle.net/11511/16605
Collections
Graduate School of Natural and Applied Sciences, Thesis
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E. Demirkutlu, “Output voltage control of a four-leg inverter based three-phase ups by means of stationary frame resonant filter banks,” M.S. - Master of Science, Middle East Technical University, 2006.
