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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Xiaodong Yang Chengyong Zhao Jing Hu Jing Wang Liu Yang |
| Copyright Year | 2011 |
| Description | Author affiliation: Key Laboratory of Power System Protection and Dynamic Security Monitoring and Control under Ministry of Education, North China Electric Power University Beijing, China (Xiaodong Yang; Chengyong Zhao; Jing Hu; Jing Wang; Liu Yang) |
| Abstract | A three-terminal DC transmission system based on modular multilevel converter (MMC) is developed to solve the problem of power supply for distributed islands or cities. The system, with flexible features, may generate high quality output voltage and reduce construction costs and power losses in the converter stations. However, the three-terminal DC system based on MMC faces more complex situations in operation and its control strategies. In this paper, the mathematic model of three-terminal DC system based on MMC is deduced. Then according to the structure of MMC, a method of carrier phase-shift SPWM is introduced. As the system-level control, the decoupling controller for three-terminal DC system based on MMC is designed. A multi-point DC voltage control strategy based on DC voltage error method, which doesn't need communication between converter stations, is proposed to improve the system reliability. By simulation with PSCAD/EMTDC, the feasibility and effectiveness of the proposed model and control strategies are verified. |
| Starting Page | 499 |
| Ending Page | 503 |
| File Size | 839602 |
| Page Count | 5 |
| File Format | |
| ISBN | 9781457703645 |
| e-ISBN | 9781457703652 |
| DOI | 10.1109/DRPT.2011.5993942 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2011-07-06 |
| Publisher Place | China |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Voltage control HVDC transmission Power conversion Mathematical model Reactive power Power system stability multi-point DC voltage control Modular Multilevel Converter (MMC) three-terminal DC transmission system control strategy |
| Content Type | Text |
| Resource Type | Article |
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