Open AccessResearch on Power Interface Algorithm of Power Hardware-in-the-loop Simulation for Isolated Operation of Modular Multilevel Converters
Author(s) -
Rong-rong Zhan,
Long-hao Liu,
Yuwei Zhao,
Ming-yang Wei,
Yanjun Li
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1449/1/012120
Subject(s) - interface (matter) , converters , matlab , modular design , power (physics) , computer science , stability (learning theory) , hardware in the loop simulation , voltage , electronic engineering , algorithm , control theory (sociology) , simulation , engineering , electrical engineering , parallel computing , physics , bubble , quantum mechanics , maximum bubble pressure method , machine learning , operating system , control (management) , artificial intelligence
A current source type power interface algorithm is proposed for the power hardware-in-the-loop (PHIL) simulation of modular multi-level converters (MMC) operating with an isolated gird such as a wind farm. To improve the stability and accuracy of hybrid simulation system, a virtual impedance and the running method is proposed for MMCs. A simulation model based on the proposed interface algorithm is established in MATLAB. The test results show that the hybrid simulation system maintains high stability and accuracy. At the power interface, the relative error of voltage is less than 2%, and the relative error of active power is less than 2%. The proposed power interface algorithm is applicable to MMCs operating with an isolated grid.