Reliability evaluation of modular multilevel converter based on Markov model
| Autor: | Hua Ting, Gang Chen, Dan Zhang, Wei Tongzhen, Yang Ting, Jihong Zhu, Zhang Liang |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Modular multilevel converters
TK1001-1841 Mean time between failures Reliability evaluation Renewable Energy Sustainability and the Environment Computer science business.industry 020209 energy 020208 electrical & electronic engineering TJ807-830 Energy Engineering and Power Technology Topology (electrical circuits) 02 engineering and technology Modular design Evaluation function Markov model Renewable energy sources Reliability engineering Production of electric energy or power. Powerplants. Central stations 0202 electrical engineering electronic engineering information engineering Voltage source State-transition equation business Reliability (statistics) |
| Zdroj: | Journal of Modern Power Systems and Clean Energy, Vol 7, Iss 5, Pp 1355-1363 (2019) |
| ISSN: | 2196-5420 2196-5625 |
| DOI: | 10.1007/s40565-019-0515-8 |
| Popis: | The modular multilevel converter (MMC) is now the most attractive topology for medium and high voltage power conversion applications with several advantages over the traditional voltage source converter (VSC). However, due to a large number of sub-modules (SMs) in the MMC, system reliability is a big challenge in its practical application, where each SM may be considered as a potential point of failure. In this paper, a reliability evaluation based on the Markov model is proposed for the MMC. The failure rates of the power electronic devices and SMs are firstly analyzed. Then, the Markov model and the state transition equation of the system are built in detail. A general reliability evaluation function is established, in which the mean time to failure and reliability evaluation of the MMC with redundant SMs are also discussed. Finally, a practical direct current (DC) distribution example for reliability evaluation is analyzed, and the results verify that the reliability evaluation based on the Markov model could provide a useful reference for project design. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full text from SpringerLink