Techniques for Computation of Frequency Limited H∞ Norm

2017 International Conference on Power and Energy Engineering

Haider, Shafiq^1 ; Ghafoor, Abdul^1 ; Imran, Muhammad^1 ; Mumtaz, Malik Fahad^1

National University of Sciences and Technology (NUST), Islamabad, Pakistan^1

关键词: Computationally efficient;    Controller designs;    Filter designs;    Frequency intervals;    Frequency ranges;    Model order reduction;    Singular values;    Specific frequencies;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/114/1/012013/pdf
DOI  :  10.1088/1755-1315/114/1/012013

来源: IOP

【 摘 要 】

Traditional H∞norm depicts peak system gain over infinite frequency range, but many applications like filter design, model order reduction and controller design etc. require computation of peak system gain over specific frequency interval rather than infinite range. In present work, new computationally efficient techniques for computation of H∞norm over frequency limited interval are proposed. Proposed techniques link norm computation with maximum singular value of the system in limited frequency interval. Numerical examples are incorporated to validate the proposed concept.