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Continuous-Time Approach to Discrete-Time PID Control for UPS Inverters - A Case Study

  • Marian BłachutaEmail author
  • Zbigniew Rymarski
  • Robert Bieda
  • Krzysztof Bernacki
  • Rafal Grygiel
Conference paper
  • 316 Downloads
Part of the Lecture Notes in Computer Science book series (LNCS, volume 12033)

Abstract

A quasi-continuous-time approach to the design of a digital PID control for DC/AC inverters with LC filter that use semiconductor switches producing PWM output voltage is presented. It is shown that an appropriately chosen continuous-time model of the digital controller with the PWM converter behaves like the actual discrete-time system, which allows for a simple controller design. SIMULINK models are used to validate this approach for a nonlinear rectifier load. The outcomes are compared with a real inverter experiment.

Keywords

Inverter PWM THD Modeling Simulation PID control Time scale separation 

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Copyright information

© Springer Nature Switzerland AG 2020

Authors and Affiliations

  1. 1.Chair of Automation and RoboticsSilesian University of TechnologyGliwicePoland
  2. 2.Chair of Electronics, Electrical Engineering and MicroelectronicsSilesian University of TechnologyGliwicePoland

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