Optimised input filter design and low-loss switching techniques for a practical matrix converter

1997 ◽  
Vol 144 (1) ◽  
pp. 53 ◽  
Author(s):  
P. Wheeler ◽  
D. Grant
Keyword(s):  
Filter Design ◽  
Matrix Converter ◽  
Low Loss ◽  
Input Filter

A novel approach to unknown input filter design for discrete-time linear systems

Automatica ◽  
2014 ◽  
Vol 50 (11) ◽  
pp. 2835-2839 ◽  
Author(s):  
Behnam Allahverdi Charandabi ◽  
Horacio J. Marquez
Keyword(s):  
Linear Systems ◽  
Discrete Time ◽  
Filter Design ◽  
Unknown Input ◽  
Novel Approach ◽  
Input Filter ◽  
Time Linear

scholarly journals Stability Criteria for Input Filter Design in Converters with CPL: Applications in Sliding Mode Controlled Power Systems

Energies ◽  
2019 ◽  
Vol 12 (21) ◽  
pp. 4048 ◽  
Author(s):  
Jorge Luis Anderson Azzano ◽  
Jerónimo J. Moré ◽  
Paul F. Puleston
Keyword(s):  
Power Systems ◽  
Filter Design ◽  
Sliding Mode ◽  
Renewable Energy Sources ◽  
Power Module ◽  
Internal Dynamics ◽  
Invariant Region ◽  
Power Load ◽  
Input Filter ◽  
The Stability

Microgrids are versatile systems for integration of renewable energy sources and non-conventional storage devices. Sliding Mode techniques grant excellent features of robustness controlling power conditioning systems, making them highly suitable for microgrid applications. However, problems may arise when a converter is set to behave as a Constant Power Load (CPL). These issues manifest in the stability of internal dynamics (or Zero Dynamics), which is determined by the input filter of the power module. In this paper, a special Lyapunov analysis is conducted to address the nonlinear internal dynamics of SM controlled power modules with CPL. It takes advantage of a Liérnad-type description, establishing stability conditions and providing a secure operation region. These conditions are translated into conductance and invariant region diagrams, turning them into tools for the design of power module filters.

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