dc.contributor.author | Zhou, Weihus | |
dc.contributor.author | Wang, Yanbo | |
dc.contributor.author | Torres Olguin, Raymundo E. | |
dc.contributor.author | Chen, Zhe | |
dc.date.accessioned | 2020-01-16T11:51:37Z | |
dc.date.available | 2020-01-16T11:51:37Z | |
dc.date.created | 2020-01-14T14:34:20Z | |
dc.date.issued | 2020 | |
dc.identifier.issn | 0885-8969 | |
dc.identifier.uri | http://hdl.handle.net/11250/2636629 | |
dc.description.abstract | Oscillation phenomena of offshore wind power plant (OWPP)in a wide frequency range can be caused due to impedance interactions between grid-connected inverters (GCIs) and transmission cables. In this paper, impedance model of GCI with outer power control loop, inner current control loop and phase-locked loop is first established in dq reference frame. The correctness is validated by frequency scanning method. Then, the effects of active and reactive power/current references on dq impedance characteristics of GCI with/without consideration of power control loop are investigated using complex space vectors and complex transfer functions. Furthermore, RLC circuit model of transmission cable considering frequency-dependent characteristics is also established for dq-domain IBSC. On the basis of them, it's found that low-frequency oscillation phenomena of OWPP under power control mode may occur if active power reference exceeds a certain threshold value, which can be mitigated by injecting a certain amount of negative reactive power. Impacts of PLL parameters, length of transmission cable and number of paralleled GCIs on required negative reactive power for low-frequency stabilization are further investigated. Both Matlab/Simulink-based simulation and OPAL-RT-based real-time verification are implemented in an OWPP with four permanent magnet synchronous generators to validate the correctness of the reactive power characteristic analysis. | nb_NO |
dc.language.iso | eng | nb_NO |
dc.rights | Attribution-NonCommercial-NoDerivatives 4.0 Internasjonal | * |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/deed.no | * |
dc.subject | Frequency scanning | nb_NO |
dc.subject | grid-connected inverter | nb_NO |
dc.subject | low-frequency stability | nb_NO |
dc.subject | offshore wind power plant | nb_NO |
dc.subject | reactive power | nb_NO |
dc.subject | transmission cable | nb_NO |
dc.title | Effect of Reactive Power Characteristic of Offshore Wind Power Plant on Low-Frequency Stability | nb_NO |
dc.type | Journal article | nb_NO |
dc.type | Peer reviewed | nb_NO |
dc.description.version | acceptedVersion | nb_NO |
dc.source.journal | IEEE transactions on energy conversion | nb_NO |
dc.identifier.doi | 10.1109/TEC.2020.2965017 | |
dc.identifier.cristin | 1772566 | |
cristin.unitcode | 7548,50,0,0 | |
cristin.unitname | Energisystemer | |
cristin.ispublished | true | |
cristin.fulltext | postprint | |
cristin.qualitycode | 2 | |