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Small-Signal Methods for AC Distributed Power Systems–A Review
Abstract
AC distributed power systems (DPS) can be found in several new and emerging applications. Similar to dc distributed power systems, an ac DPS relies on power electronics and control to realize its functions and achieve the required performance. System stability and power quality are important issues in both types of systems due to the complex system behavior resulted from active control at both the source and the load side. Traditional small-signal analysis methods cannot be directly applied to an ac DPS because of the periodically time-varying system operation trajectory. Possible solutions to this problem include transformation into a rotating (dq) reference frame, modeling using dynamic phasors, reduced-order modeling, and harmonic linearization. This paper reviews these small-signal methods and discusses their utilities as well as limitations. Compatibility of each type of models with state-space and impedance-based system analysis approaches will also be discussed. Problems related to the linearization of phasor-based models and their use in impedance-based system analysis are highlighted in particular.
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Cited by
Modeling and Analysis of Harmonic Stability in an AC Power-Electronics-Based Power System
Wang, X., Blaabjerg, F., & Wu, W. (2014) · IEEE Transactions on Power Electronics · doi:10.1109/tpel.2014.2306432 · Cited by 785
Impedance-Model-Based SSR Analysis for Type 3 Wind Generator and Series-Compensated Network
Miao, Z. (2012) · IEEE Transactions on Energy Conversion · doi:10.1109/tec.2012.2211019 · Cited by 329
Sequence Impedance Modeling of Modular Multilevel Converters
Sun, J., & Liu, H. (2017) · IEEE Journal of Emerging and Selected Topics in Power Electronics · doi:10.1109/jestpe.2017.2762408 · Cited by 287
Self-citationFrequency Domain Stability Analysis of MMC-Based HVdc for Wind Farm Integration
Lyu, J., Cai, X., & Molinas, M. (2016) · IEEE Journal of Emerging and Selected Topics in Power Electronics · doi:10.1109/jestpe.2015.2498182 · Cited by 267
Robust Stability Analysis of Synchronverters Operating in Parallel
Rosso, R., Engelken, S., & Liserre, M. (2019) · IEEE Transactions on Power Electronics · doi:10.1109/tpel.2019.2896707 · Cited by 117
Metadata
- Authors
- Sun, J.
- Venue
- IEEE Transactions on Power Electronics
- Published
- 2009-11
- Volume
- 24
- Issue
- 11
- Pages
- 2545-2554
- ISSN
- 0885-8993 (ISSN-L)
- 1941-0107
- OpenAlex
- W2160410553
- Cited by
- 712
- References
- 0
- FWCI
- 22.85
- Type
- journal article
- Language
- en
- Open access
- closed
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