Fuzzy PI optimal control of MMC-HVDC system

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Fuzzy PI optimal control of MMC-HVDC system

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The 16th IET International Conference on AC and DC Power Transmission (ACDC 2020) — Recommend this title to your library

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  • DOI:  10.1049/icp.2020.0057
  • ISBN: 978-1-83953-330-3
  • Location: Online Conference
  • Conference date: 02-03 July 2020
  • Format: PDF

In recent years, MMC-HVDC (high-voltage direct current transmission that based on modular multi-level converter) is the key research direction of China's power system. In order to optimize the control strategy of MMC-HVDC system, the fuzzy PI controller is designed by combining fuzzy control and PI (proportional integral) control,that realize the function of real-time adjustment of PI parameters. The simulation model of the double-ended active 31-level MMC-HVDC system was built by using MATLAB/Simulink simulation software which can compare the simulation waveforms between the traditional PI controller and fuzzy PI controller.As a result, the fuzzy PI controller can effectively improve the transient response characteristics and robustness of the double-ended active MMC-HVDC system and can improve the power quality at the same time.

Inspec keywords: transient response; power system parameter estimation; power transmission control; power system transients; voltage-source convertors; power system simulation; Matlab; waveform analysis; optimal control; HVDC power convertors; power supply quality; PI control; fuzzy control; HVDC power transmission

Subjects: Fuzzy control; Power supply quality and harmonics; Optimal control; d.c. transmission; Mathematical analysis; Mathematical analysis; Control of electric power systems; Power convertors and power supplies to apparatus; Power system control

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