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Content Provider | IEEE Xplore Digital Library |
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Author | Sheng Liu Zheng Xu Wen Hua Geng Tang Yinglin Xue |
Copyright Year | 2014 |
Description | Author affiliation: Dept. of Electr. Eng., Zhejiang Univ., Hangzhou, China (Sheng Liu; Zheng Xu; Geng Tang; Yinglin Xue) || Zhejiang Electr. Power Corp. Res. Inst., Hangzhou, China (Wen Hua) |
Abstract | Summary form only given. This paper studies the techniques for modeling modular multilevel converter (MMC) based multi-terminal HVDC (MTDC) systems in the electromechanical transient mode. Firstly, the mathematical model of the MMC and its corresponding equivalent circuit are established, which are similar to those of the two level converters. Then, a power flow calculation method for AC/DC systems containing MMC-MTDC systems is developed. Two dynamic models for MMC-MTDC systems are developed in the paper. One is the detailed model, taking into account of the AC side circuit, the inner controllers, the modulation strategies, the outer controllers and the MTDC circuit. The other is the simplified model, which only reserves the outer controllers and partial dynamics of the MTDC circuit based on a quantitative analysis of the detailed model's dynamic processes, and it can be used in electromechanical transient simulation with a larger step size. Both the detailed and the simplified models are implemented on PSS/E and compared with the accurate electromagnetic transient models on PSCAD in a four terminal MMC-MTDC system; the result proves the validity of the developed models. Lastly, a stability study of a modified New England 39-bus system is executed, and the result shows that the AC fault can be isolated well in an MMC-MTDC asynchronously connected AC grid. |
Starting Page | 1 |
Ending Page | 1 |
File Size | 70051 |
Page Count | 1 |
File Format | |
ISBN | 9781479964154 |
DOI | 10.1109/PESGM.2014.6938791 |
Language | English |
Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
Publisher Date | 2014-07-27 |
Publisher Place | USA |
Access Restriction | Subscribed |
Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
Subject Keyword | Integrated circuit modeling Transient analysis Mathematical model Analytical models Converters HVDC transmission |
Content Type | Text |
Resource Type | Article |
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