NDLI: Modelling, control, and stability analysis of quasi-Z-source matrix converter as the grid interface of a PMSG-WECS

Content Provider	IET Digital Library
Author	Alizadeh, Mojtaba Kojuri, Shokrollah Shokri
Abstract	This work aims to carry out a comprehensive analytical evaluation of a quasi-Z-source matrix converter (qZSMC), which is comprised of a three-phase quasi-Z-source network (TPQZSN) followed by an MC, as the grid interface of a permanent magnet synchonous generator (PMSG)-based wind energy conversion system (PMSG-WECS). First, the small-signal model of the TPQZSN in space domain is obtained by the state-space averaging method, while the parasitic elements are also considered. The TPQZSN's transfer functions are further calculated and analysed. The results together with a frequency-domain analysis are used to render a comprehensive guide for the selection of proper passive components of the TPQZSN. The qZSMC is then employed as the grid interface of a PMSG-WECS. A control system is designed for the grid-connected operation. The small-signal model of the whole system is developed. The qZSMC is compared with conventional MC (CMC) from stability point of view, indicating that, unlike the CMC, the qZSMC has no trouble working stable for all ranges of output power. Furthermore, it is shown that the proposed WECS can operate stably without using digital filter. The system performance is compared with CMC-based WECS.
Starting Page	3576
Ending Page	3585
Page Count	10
ISSN	17518687
Volume Number	11
e-ISSN	17518695
Issue Number	Issue 14, Sep (2017)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-gtd/11/14
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-gtd.2017.0178
Journal	IET Generation, Transmission & Distribution
Publisher Date	2017-06-06
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Control of Electric Power System Control System Control System Analysis Control System Synthesis Frequency Domain Analysis Grid-connected Operation Mathematical Analysis Matrix Converter Parasitic Element Permanent Magnet Generator Permanent Magnet Synchronous Generator-based Wind Energy Conversion Grid Interface PMSG-WECS Grid Interface Power Generation Control Power Grid Power System Stability QuasiZ-source Matrix Converter Control QuasiZ-source Matrix Converter Modelling QuasiZ-source Matrix Converter Stability Analysis QZSMC Comprehensive Analytical Evaluation Space Domain Stability in Control Theory State Space Method State-Space Averaging Method Synchronous Generator Synchronous Machine Synthesis Method Three-phase QuasiZ-source Network TPQZSN Small-signal Model TPQZSN Transfer Function Transfer Function Wind Power Plant
Content Type	Text
Resource Type	Article
Subject	Control and Systems Engineering Energy Engineering and Power Technology Electrical and Electronic Engineering

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