Voltage Balancing Method on Expert System for 51-Level MMC in High Voltage Direct Current Transmission
Joint Authors
Source
Mathematical Problems in Engineering
Issue
Vol. 2016, Issue 2016 (31 Dec. 2016), pp.1-6, 6 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2016-05-15
Country of Publication
Egypt
No. of Pages
6
Main Subjects
Abstract EN
The Modular Multilevel Converters (MMC) have been a spotlight for the high voltage and high power transmission systems.
In the VSC-HVDC (High Voltage Direct Current based on Voltage Source Converter) transmission system, the energy of DC link is stored in the distributed capacitors, and the difference of capacitors in parameters and charge rates causes capacitor voltage balance which affects the safety and stability of HVDC system.
A method of MMC based on the expert system for reducing the frequency of the submodules (SMs) of the IGBT switching frequency is proposed.
Firstly, MMC with 51 levels for HVDC is designed.
Secondly, the nearest level control (NLC) for 51-level MMC is introduced.
Thirdly, a modified capacitor voltage balancing method based on expert system for MMC-based HVDC transmission system is proposed.
Finally, a simulation platform for 51-level Modular Multilevel Converter is constructed by using MATLAB/SIMULINK.
The results indicate that the strategy proposed reduces the switching frequency on the premise of keeping submodule voltage basically identical, which greatly reduces the power losses for MMC-HVDC system.
American Psychological Association (APA)
Chen, Yong& Zhang, Xu. 2016. Voltage Balancing Method on Expert System for 51-Level MMC in High Voltage Direct Current Transmission. Mathematical Problems in Engineering،Vol. 2016, no. 2016, pp.1-6.
https://search.emarefa.net/detail/BIM-1111963
Modern Language Association (MLA)
Chen, Yong& Zhang, Xu. Voltage Balancing Method on Expert System for 51-Level MMC in High Voltage Direct Current Transmission. Mathematical Problems in Engineering No. 2016 (2016), pp.1-6.
https://search.emarefa.net/detail/BIM-1111963
American Medical Association (AMA)
Chen, Yong& Zhang, Xu. Voltage Balancing Method on Expert System for 51-Level MMC in High Voltage Direct Current Transmission. Mathematical Problems in Engineering. 2016. Vol. 2016, no. 2016, pp.1-6.
https://search.emarefa.net/detail/BIM-1111963
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1111963