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Output voltage control of a four-leg inverter based three-phase UPS by means of stationary frame resonant filter banks
Date
2007-05-05
Author
Demirkutlu, Eyyup
Cetinkaya, Sueleyman
Hava, Ahmet Masum
Metadata
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This work is licensed under a
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License
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A method for high performance output voltage control of a four-leg inverter (FLI) based three-phase UPS is proposed. Stationary frame resonant filter bank based output voltage control loop, which is complemented by capacitor current feedback based active damping loop, is employed. Utilizing the zero-state partitioning variable, a generalized form of scalar PWM for the FLI is developed and the minimum loss discontinuous PWM method is derived. The controller and modulator design and implementation details for the FLI-UPS are given. Linear and nonlinear loads for balanced and unbalanced load operating conditions are considered. The scalar control and PWM methods are proven by means of theory, simulations, and experiments.
Subject Keywords
Efficiency
,
Xwitching loss
,
UPS
,
Voltage regulation
,
Unbalance
,
Zero-sequence
,
Harmonic
,
THD
,
Crest factor
,
Resonant filter
,
Active damping
,
Scalar PWM
,
Zero-state partitioning
URI
https://hdl.handle.net/11511/38045
DOI
https://doi.org/10.1109/iemdc.2007.382785
Collections
Department of Electrical and Electronics Engineering, Conference / Seminar
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Output voltage control of a four-leg inverter based three-phase UPS utilizing stationary frame resonant filter banks
Hava, Ahmet Masum (2007-09-05)
An all scalar PWM and control approach for the four-leg inverter based three phase transformerless UPS is proposed. The output voltage of each phase is controlled independently and its controller is formed by a stationary frame resonant filter bank accompanied with proportional control and output capacitor current based active damping loops. The resonant filter bank consists of the fundamental component controller and one controller for each dominant harmonic. The simple to implement scalar control method e...
Output voltage control of a four-leg inverter based three-phase ups by means of stationary frame resonant filter banks
Demirkutlu, Eyyüp; Hava, Ahmet Masum; Department of Electrical and Electronics Engineering (2006)
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 loa...
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E. Demirkutlu, S. Cetinkaya, and A. M. Hava, “Output voltage control of a four-leg inverter based three-phase UPS by means of stationary frame resonant filter banks,” 2007, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/38045.
