dc.contributor.author | Wei, Jianzhao | |
dc.contributor.author | Acharya, Anirudh Budnar | |
dc.contributor.author | Norum, Lars Einar | |
dc.contributor.author | Bauer, Pavol | |
dc.date.accessioned | 2019-04-23T11:53:26Z | |
dc.date.available | 2019-04-23T11:53:26Z | |
dc.date.created | 2019-03-29T14:47:49Z | |
dc.date.issued | 2018 | |
dc.identifier.isbn | 978-4-88686-405-5 | |
dc.identifier.uri | http://hdl.handle.net/11250/2595062 | |
dc.description.abstract | There is a need to transmit the power generated from windfarm in remote locations to the residential and industrial load. One of the suitable and economic solution for such long distance transmission of power is the High Voltage DC (HVDC) transmission. The Modular Multilevel Converter (MMC) based HVDC transmission is a proven technology with very high power quality. A multi-objective control is used to control the MMC, one of the objectives is to deliver the power from windfarm to grid, the other objective of the control is to achieve stable operation of the MMC. In order to achieve a stable operation, the capacitors in the MMC should be balanced and the currents circulating within the phases of the MMC need to be controlled. Many control strategies have been proposed to suppress such Circulating Current (CC). However, there is no clear comparison between these control strategies. In this paper control strategies for the MMC are reviewed specifically the circulating current suppressor. The cascaded control based on PI-controller and the Model Predictive Control (MPC) for outer current control are compared. Results show that traditional method has better steady state performance, while MPC based method has much faster dynamic response and has the advantage of involving less control loops in controlling systems with multiple control aspects. The control methods for capacitor voltage balancing and the circulating current suppression are simulated and compared. | nb_NO |
dc.language.iso | eng | nb_NO |
dc.publisher | Institute of Electrical and Electronics Engineers (IEEE) | nb_NO |
dc.relation.ispartof | The 2018 International Power Electronics Conference - IPEC-Niigata 2018 ECCE Asia | |
dc.title | Comparison of Current Control Strategies in Modular Multilevel Converter | nb_NO |
dc.type | Chapter | nb_NO |
dc.description.version | acceptedVersion | nb_NO |
dc.identifier.doi | 10.23919/IPEC.2018.8507612 | |
dc.identifier.cristin | 1688952 | |
dc.description.localcode | © 2018 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. | nb_NO |
cristin.unitcode | 194,63,20,0 | |
cristin.unitname | Institutt for elkraftteknikk | |
cristin.ispublished | true | |
cristin.fulltext | postprint | |
cristin.qualitycode | 1 | |