Variable speed wind turbine generator system with current controlled voltage source inverter
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The present popular trend of wind power generation is to use variable speed wind turbine (VSWT) driving a doubly fed induction generator (DFIG), wound field synchronous generator (WFSG) or permanent magnet synchronous generator (PMSG). Among them, stability analyses of DFIG type of VSWT have already been reported in many literatures. However, transient stability and low voltage ride through (LVRT) characteristics analyses for synchronous generator type of VSWT is not sufficient enough. This paper focuses on detailed LVRT characteristic analysis of variable speed wind turbine driving a PMSG (VSWT-PMSG) with current controlled voltage source inverter (CC-VSI). Modeling and suitable control strategies for overall system are developed to augment the low voltage ride through capability of variable speed wind generator, considering recent wind farm grid code. Both symmetrical and unsymmetrical faults are analyzed as network disturbances in this paper. The permanent fault due to unsuccessful reclosing of circuit breakers is taken into consideration, which is a salient feature of this study. Moreover, the dynamic characteristic is analyzed using real wind speed data measured in Hokkaido Island, Japan. The proposed control scheme is simulated by using the standard power system simulation package PSCAD/EMTDC and results are verified by comparing that of voltage controlled voltage source inverter scheme available in power system literature.
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Jahan, E.; Hazari, M.; Muyeen, S.M.; Umemura, A.; Takahashi, R.; Tamura, J. (2018)© 2017 IEEE. This paper proposes a new control scheme for variable speed wind turbines with permanent magnet synchronous generators (VSWT-PMSG) based offshore wind farm (WF), which is connected to the main onshore grid ...
Stability augmentation of a grid-connected wind farm by fuzzy-logic-controlled DFIG-based wind turbinesHazari, M.; Mannan, M.; Muyeen, S.M.; Umemura, A.; Takahashi, R.; Tamura, J. (2017)Wind farm (WF) grid codes require wind generators to have low voltage ride through (LVRT) capability, which means that normal power production should be resumed quickly once the nominal grid voltage has been recovered. ...
Rosyadi, M.; Muyeen, S.M.; Takahashi, R.; Tamura, J. (2012)This paper proposes a novel controller design of variable speed permanent magnet (PM) wind generator. The controller system is developed to enhance the fault ride through capability of wind farms including fixed speed ...