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Optimizing Surplus Harmonics Distribution in PWM

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Intelligent Information Technology (CIT 2004)

Part of the book series: Lecture Notes in Computer Science ((LNCS,volume 3356))

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Abstract

The goal of optimal pulse-width modulation (PWM) is to select the switching instances in such a way that a waveform with a particular characteristic is obtained and a certain criterion is minimized. The conventional method to solve the optimal PWM problem would usually lead to large content of surplus harmonics immediately following the eliminated frequency band, which may increase the filter loss and reduce the efficiency and performance of the whole controller. Meanwhile, it may increase the probability of resonance between line impedance and filter components. To overcome the shortcomings of conventional PWM methods, in this paper, we propose an algorithm for pushing the first crest of the surplus harmonics backward, ameliorating the amplitude frequency spectrum distribution of the output waveform, and thus reducing the impact of surplus harmonics.

The problem is first formulated as a constrained optimization problem and then a Quantum-inspired Evolutionary Algorithm (QEA) algorithm is applied to solve it. Other than Newton-like methods, the enhanced QEA does not need good initial values for solving the optimal PWM problem and is not stuck in local optimum. The simulation results indicate that the algorithm is robust and scalable for a variety of application requirements.

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Author information

Authors and Affiliations

  1. Department of Computer and Information Science, Polytechnic University, Brooklyn, NY, 11201, USA

    Shiyan Hu

  2. Department of Electrical and Computer Engineering, Polytechnic University, Brooklyn, NY, 11201, USA

    Han Huang

Authors
  1. Shiyan Hu
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  2. Han Huang
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Editor information

Editors and Affiliations

  1. Department of Computer Sc and Engineering, University of Texas At Arlington, TX-76019, Arlington

    Gautam Das

  2. Tata Consultancy Services, Software Units Layout, Madhapur, 500081, Hyderabad, India

    Ved Prakash Gulati

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© 2004 Springer-Verlag Berlin Heidelberg

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Hu, S., Huang, H. (2004). Optimizing Surplus Harmonics Distribution in PWM. In: Das, G., Gulati, V.P. (eds) Intelligent Information Technology. CIT 2004. Lecture Notes in Computer Science, vol 3356. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-30561-3_38

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  • DOI: https://doi.org/10.1007/978-3-540-30561-3_38

  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-540-24126-3

  • Online ISBN: 978-3-540-30561-3

  • eBook Packages: Computer ScienceComputer Science (R0)

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