Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 10 of 10 for “"virtual synchronous machine"”.
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Design, Analysis and Experimental Evaluation of a Virtual Synchronous Machine Based Control Scheme for STATCOM Applications
… the operation of the power plant. Further, the virtual synchronous machine (VSM) concept has recently been introduced to control grid-connected inverters emulating the behavior of rotating synchronous machines, in an effort to eliminate the shortcomings of conventional d-q frame phase-locked …
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Next Generation Grid-Tied Inverters with Virtual Synchronous Machine Features for Grid Services and Grid Support
L'abstract è presente nell'allegato / the abstract is in the attachment
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Virtual Synchronous Machine based Fuzzy V-F Control for VSC of Battery Storage System for Seamless Performance of Microgrid
This thesis presents seamless transition between the grid-connected and islanded mode of microgrid. The prominence of the seamless transition is to maintain the load voltage and frequency as well as constant power delivery during both the modes of operation of microgrid. In this thesis, voltage …
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Modeling, simulation, and control design of electro-mechanical dynamics in heterogeneous power systems
… modeling framework to study power systems with synchronous generators and grid forming inverters with droop control, virtual synchronous machine control, and dispatchable virtual oscillator control is developed. To mitigate model complexity and facilitate analytical understanding, this framework …
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Vector Based Control for Power Electronics Dominated AC Power Grid
… power systems dominated by electrical machines, they exhibit unexpected control issues in power electronics-dominant power systems. The root of these unexpected behaviors lies in the foundational assumptions of these control methods (Droop control and Virtual Synchronous Machine) i.e. …
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Design and Evaluation of a Photovoltaic Inverter with Grid-Tracking and Grid-Forming Controls
This thesis applies the concept of a virtual-synchronous-machine- (VSM-) based control to a conventional 250-kW utility-scale photovoltaic (PV) inverter. VSM is a recently-developed control scheme which offers an alternative grid-synchronization method to the conventional grid-tracking control …
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Phase control of delta-connected single-phase grid-forming inverters for auxiliary signal injection
… types of primary control (namely droop, virtual synchronous machine, and virtual oscillator control). Using this analysis, we motivate control and modeling methods for single-phase ($1\phi$) inverters and highlight the similarities and differences. From here we develop a high-fidelity …
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Power electronics implementation of dynamic thermal storage as effective inertia in large energy systems
… of constraints unique on MEA. A more sensitive virtual synchronous machine control boosts desirable inertia in sub-seconds scales in the MEA power system. To validate the thermal storage as effective inertia in both stationary and mobile energy systems, comprehensive simulation studies and …
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Modeling and Control of Voltage-Controlling Converters for Enhanced Operation of Multi-Source Power Systems
… based on the electro-mechanical duality with synchronous machines, and end with selected examples of system-level operation, where small-signal instability in multi-source power systems can be mitigated using this concept.
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Innovative Control Algorithms for Grid-Tied Inverters
L'abstract è presente nell'allegato / the abstract is in the attachment